ACPI allows to enumerate specific devices by using compatible strings.
Enable that enumeration for EDT touchscreen devices.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
-------------------------------------
This pull request gets rid of mach-davinci private interrupt controller
implmentations (aintc and cp_initc) and moves them to drivers/irqchip.
mach/irqs.h usage outside of mach-davinci has been rid of.
The driver changes (input and irqchip) have been acked by respective
maintainers.
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Merge tag 'davinci-for-v5.1/soc-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into arm/late
DaVinci SoC updates for v5.1 (part 3)
-------------------------------------
This pull request gets rid of mach-davinci private interrupt controller
implmentations (aintc and cp_initc) and moves them to drivers/irqchip.
mach/irqs.h usage outside of mach-davinci has been rid of.
The driver changes (input and irqchip) have been acked by respective
maintainers.
* tag 'davinci-for-v5.1/soc-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: (57 commits)
ARM: davinci: remove intc related fields from davinci_soc_info
irqchip: davinci-cp-intc: move the driver to drivers/irqchip
ARM: davinci: cp-intc: remove redundant comments
ARM: davinci: cp-intc: drop GPL license boilerplate
ARM: davinci: cp-intc: use readl/writel_relaxed()
ARM: davinci: cp-intc: unify error handling
ARM: davinci: cp-intc: improve coding style
ARM: davinci: cp-intc: request the memory region before remapping it
ARM: davinci: cp-intc: use the new-style config structure
ARM: davinci: cp-intc: convert all hex numbers to lowercase
ARM: davinci: cp-intc: use a common prefix for all symbols
ARM: davinci: cp-intc: add the new config structures for da8xx SoCs
irqchip: davinci-cp-intc: add a new config structure
ARM: davinci: cp-intc: add a wrapper around cp_intc_init()
ARM: davinci: cp-intc: remove cp_intc.h
irqchip: davinci-aintc: move the driver to drivers/irqchip
ARM: davinci: aintc: remove unnecessary includes
ARM: davinci: aintc: remove the timer-specific irq_set_handler()
ARM: davinci: aintc: request memory region before remapping it
ARM: davinci: aintc: unify error handling
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/input/touchscreen/ti_am335x_tsc.c: In function 'titsc_suspend':
drivers/input/touchscreen/ti_am335x_tsc.c:510:24: warning:
variable 'tscadc_dev' set but not used [-Wunused-but-set-variable]
drivers/input/touchscreen/ti_am335x_tsc.c: In function 'titsc_resume':
drivers/input/touchscreen/ti_am335x_tsc.c:527:24: warning:
variable 'tscadc_dev' set but not used [-Wunused-but-set-variable]
It's not used any more after 333e07ec4b ("Input: ti_am335x_tsc: Mark TSC
device as wakeup source")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The mach/ and asm/ includes are not needed in davinci_keyscan, but they
will cause build problems once we make mach/irqs.h a private header for
mach-davinci.
Remove all unused header includes.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Convert string compares of DT node names to use of_node_name_eq helper
instead. For the root node on SUN DT, we need to retrieve the 'name'
property as it is the rare case where the 'name' property and node name
differ. With both changes, it removes direct access to the node name
pointer.
While at it, convert the open coded loop to use for_each_child_of_node().
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
- tweaks to Elan drivers (both PS/2 and I2C) to support new devices.
Also revert of one of IDs as that device should really be driven by
i2c-hid + hid-multitouch
- a few drivers have been switched to set_brightness_blocking() call
because they either were sleeping the their set_brightness()
implementation or used workqueue but were not canceling it on unbind.
- ps2-gpio and matrix_keypad needed to [properly] flush their works to
avoid potential use-after-free on unbind.
- other miscellaneous fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - add ACPI ID for touchpad in Lenovo V330-15ISK
Input: st-keyscan - fix potential zalloc NULL dereference
Input: apanel - switch to using brightness_set_blocking()
Revert "Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G"
Input: qt2160 - switch to using brightness_set_blocking()
Input: matrix_keypad - use flush_delayed_work()
Input: ps2-gpio - flush TX work when closing port
Input: cap11xx - switch to using set_brightness_blocking()
Input: elantech - enable 3rd button support on Fujitsu CELSIUS H780
Input: bma150 - register input device after setting private data
Input: pwm-vibra - stop regulator after disabling pwm, not before
Input: pwm-vibra - prevent unbalanced regulator
Input: snvs_pwrkey - allow selecting driver for i.MX 7D
"Invalid config" gives little idea what's wrong. Print the values that
must not be 0 so we know which ones are off.
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Remove a leftover spinlock.
This was required back when mod_delayed_work() did not exist, and had to
be implemented with a cancel + queue. See commit e7c2f96744
("workqueue: use mod_delayed_work() instead of __cancel + queue")
schedule_delayed_work() and mod_delayed_work() can now be used
concurrently. So the spinlock is no longer needed.
Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds ELAN0617 to the ACPI table to support Elan touchpad found in
Lenovo V330-15ISK.
Signed-off-by: Mauro Ciancio <mauro@acadeu.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Now that LEDs core allows "blocking" flavor of "set brightness" method we
can use it and get rid of private work item. As a bonus, we are no longer
forgetting to cancel it when we unbind the driver.
Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.
This patch fixes the following warning:
drivers/input/joystick/db9.c: In function ‘db9_saturn_read_packet’:
drivers/input/joystick/db9.c:256:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (tmp == 0xff) {
^
drivers/input/joystick/db9.c:263:2: note: here
default:
^~~~~~~
Notice that, in this particular case, the code comment is modified
in accordance with what GCC is expecting to find.
This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Remove a spinlock which prevents schedule_delayed_work() and
mod_delayed_work() from executing concurrently.
This was required back when mod_delayed_work() did not exist,
and had to be implemented with a cancel + schedule. See
commit e7c2f96744 ("workqueue: use mod_delayed_work() instead of
__cancel + queue")
schedule_delayed_work() and mod_delayed_work() can now be used
concurrently. So the spinlock is no longer needed.
Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is required to specify generic touchscreen properties via DT.
Signed-off-by: Matthias Fend <matthias.fend@wolfvision.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Now that LEDs core allows "blocking" flavor of "set brightness" method we
can use it and get rid of private work item.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use devm_gpiod_get_optional() and gpiod_set_value_cansleep() instead
of the old API. The st1232_ts_power() now passes on the inverted "poweron"
value to reflect the correct logical value.
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This reverts commit 7db54c89f0 as it
breaks Acer Aspire V-371 and other devices. According to Elan:
"Acer Aspire F5-573G is MS Precision touchpad which should use hid
multitouch driver. ELAN0501 should not be added in elan_i2c."
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=202503
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Now that LEDs core allows "blocking" flavor of "set brightness" method we
can use it and get rid of private work items.
Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fetching the geometry from the ILI251x registers seems unreliable and
sometimes returns all zeroes. Add support for fetching the geometry and
axis inversion from DT instead.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The PTR_ERR(NULL) value is zero and it's not useful to print that.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We should be using flush_delayed_work() instead of flush_work() in
matrix_keypad_stop() to ensure that we are not missing work that is
scheduled but not yet put in the workqueue (i.e. its delay timer has not
expired yet).
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To ensure that TX work is not running after serio port has been torn down,
let's flush it when closing the port.
Reported-by: Sven Van Asbroeck <thesven73@gmail.com>
Acked-by: Danilo Krummrich <danilokrummrich@dk-develop.de>
Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Updating LED state requires access to regmap and therefore we may sleep,
so we could not do that directly form set_brightness() method.
Historically we used private work to adjust the brightness, but with the
introduction of set_brightness_blocking() we no longer need it.
As a bonus, not having our own work item means we do not have
use-after-free issue as we neglected to cancel outstanding work on
driver unbind.
Reported-by: Sven Van Asbroeck <thesven73@gmail.com>
Reviewed-by: Sven Van Asbroeck <TheSven73@googlemail.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Like Fujitsu CELSIUS H760, the H780 also has a three-button Elantech
touchpad, but the driver needs to be told so to enable the middle touchpad
button.
The elantech_dmi_force_crc_enabled quirk was not necessary with the H780.
Also document the fw_version and caps values detected for both H760 and
H780 models.
Signed-off-by: Matti Kurkela <Matti.Kurkela@iki.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We need to access I2C bus when switching brightness, and that may block,
therefore we have to set stmfts_brightness_set() as LED's
brightness_set_blocking() method.
Fixes: 72d1f2346d ("Input: tm2-touchkey - add touchkey driver support for TM2")
Acked-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We need to turn regulators on and off when switching brightness, and
that may block, therefore we have to set stmfts_brightness_set() as
LED's brightness_set_blocking() method.
Fixes: 78bcac7b2a ("Input: add support for the STMicroelectronics FingerTip touchscreen")
Acked-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
By switching to devm_device_add_group() we can complete driver conversion
to using managed resources and get rid of ili210x_i2c_remove().
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support for ILI251x touch controller. This controller is similar
to the ILI210x, except for the following differences:
- Does not support I2C R-W transfer, Read must be followed by an
obscenely long delay, and then followed by Write
- Does support 10 simultaneous touch inputs.
- Touch data format is slightly different, pressure reporting does not
work although the touch data contain such information.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Perform the register access only after the I2C client data are set,
this is only done in preparation for the subsequent patch which
uses the I2C client data in the register IO function.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Get rid of the packed structures for representing data as that does not
apply to other similar Ilitek touchscreens. Instead, implement a function
which parses the data and reports touch events and coordinates.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Convert the driver to devm_request_irq(), drop the related unmanaged
deregistration code and add ili210x_irq_teardown() to tear the IRQ
down and cancel possible touchscreen pending work.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The touchscreen can have a reset GPIO connected to it, add support
for such an arrangement.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The .get_pendown_state callback is set only by the platform data code,
which was just removed. Thus, get_pendown_state() always returns false,
so drop that altogether.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is not a single user of the ili210x platform data in the kernel,
just drop it.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch adds a new vibrator driver that supports various Qualcomm
MSM SOCs. Driver was tested on a LG Nexus 5 (hammerhead) phone.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On some platforms (e.g.: ARCH_BRCMSTB) it is possible to enter
"poweroff" while leaving some wake-up sources enabled such as key
presses in order to allow for the system to wake-up.
Wire up a .shutdown() callback which calls into the existing
gpio_keys_suspend() since the logic is essentially the same.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We should rely on the interrupt trigger (level vs edge) set up by the
firmware or board code instead of forcing what we consider appropriate.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some of the #defined register values are one-bit flags. Convert them to
use the BIT(x) macro instead of 1 byte hexadecimal values. This improves
readability and clarifies the intent.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- Revert the commits that introduce clk management for the SP
clk on MMP2 SoCs (used for OLPC). Turns out it wasn't a good
idea and there isn't any need to manage this clk, it just causes
more headaches.
- A performance regression that went unnoticed for many years where
we would traverse the entire clk tree looking for a clk by name
when we already have the pointer to said clk that we're looking
for
- A parent linkage fix for the qcom SDM845 clk driver
- An i.MX clk driver rate miscalculation fix where order of operations
were messed up
- One error handling fix from the static checkers
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Mostly driver fixes, but there's a core framework fix in here too:
- Revert the commits that introduce clk management for the SP clk on
MMP2 SoCs (used for OLPC). Turns out it wasn't a good idea and
there isn't any need to manage this clk, it just causes more
headaches.
- A performance regression that went unnoticed for many years where
we would traverse the entire clk tree looking for a clk by name
when we already have the pointer to said clk that we're looking for
- A parent linkage fix for the qcom SDM845 clk driver
- An i.MX clk driver rate miscalculation fix where order of
operations were messed up
- One error handling fix from the static checkers"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: gcc: Use active only source for CPUSS clocks
clk: ti: Fix error handling in ti_clk_parse_divider_data()
clk: imx: Fix fractional clock set rate computation
clk: Remove global clk traversal on fetch parent index
Revert "dt-bindings: marvell,mmp2: Add clock id for the SP clock"
Revert "clk: mmp2: add SP clock"
Revert "Input: olpc_apsp - enable the SP clock"
of_touchscreen.c provides a common interface for a axis inversion and
swapping of touchscreens. Therefore use it in the sx8654 driver.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The sx8654 and sx8650 are quite similar, therefore add support for the
sx8650 within the sx8654 driver.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[dtor: use __be16 in sx8650_irq, add missing del_timer_sync]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
As the sx865[456] share the same datasheet and differ only in the
presence of a "capacitive proximity detection circuit" and a "haptics
motor driver for LRA/ERM" add them to the compatbiles. As the driver
doesn't implement these features it should be no problem.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The sx8654 features a NRST input which may be connected to a GPIO.
Therefore add support for hard-resetting the sx8654 via this NRST.
If the reset-gpio property is provided the sx8654 is resetted via NRST
instead of the soft-reset via I2C.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds myself as an author of the st1232 driver module as Tony's
email address doesn't seem to work anymore.
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support for the Sitronix ST1633 touchscreen controller to the st1232
driver. A protocol spec can be found here:
www.ampdisplay.com/documents/pdf/AM-320480B6TZQW-TC0H.pdf
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch fixes order of disable calls in pwm_vibrator_stop.
Currently when starting device, we first enable vcc regulator and then
setup and enable pwm. When stopping, we should do this in oposite order,
so first disable pwm and then disable regulator.
Previously order was the same as in start.
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
pwm_vibrator_stop disables the regulator, but it can be called from
multiple places, even when the regulator is already disabled. Fix this
by using regulator_is_enabled check when starting and stopping device.
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The i.MX SNVS Power Key driver supports the i.MX 7D SoC family too.
Allow to enable the i.MX SNVS Power Key driver even if only i.MX 7D
SoC is selected.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
"A fixup for the input_event fix for y2038 Sparc64, and couple other
minor fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: input_event - fix the CONFIG_SPARC64 mixup
Input: olpc_apsp - assign priv->dev earlier
Input: uinput - fix undefined behavior in uinput_validate_absinfo()
Input: raspberrypi-ts - fix link error
Input: xpad - add support for SteelSeries Stratus Duo
Input: input_event - provide override for sparc64
Turns out this is not such a great idea. Once the SP clock is disabled,
it's not sufficient to just enable in order to bring the SP core back up.
It seems that the kernel has no business managing this clock. Just let
the firmware keep it enabled.
This reverts commit ed22cee91a.
Link: https://lore.kernel.org/lkml/154783267051.169631.3197836544646625747@swboyd.mtv.corp.google.com/
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The dev field needs to be set when serio_register_port() is called,
because the open callback may use it (in the error handling path).
Fixes: commit af518342ef ("Input: olpc_apsp - check FIFO status on open(), not probe()")
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The STPMIC1 pmic is able to manage an onkey button. This driver exposes
the STPMIC1 onkey as an input device. It can also be configured to
shut-down the power supplies on a long key-press with an adjustable
duration.
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This patch removes common ADC settings in favor to use
stmpe811_adc_common_init that is present in MFD. This is necessary in
preparation for the stmpe-adc driver, because those two drivers have
common settings for the ADC.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Move defines that are ADC related to the header of the overlying MFD,
so they can be used from multiple sub-devices.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
An integer overflow may arise in uinput_validate_absinfo() if "max - min"
can't be represented by an "int". We should check for overflow before
trying to use the result.
Reported-by: Kyungtae Kim <kt0755@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.20' into for-linus
Sync with mainline to get linux/overflow.h among other things.
Fix link error when TOUCHSCREEN_RASPBERRYPI_FW is enabled as a module and
the dependent module is built-in. The 'depends on RASPBERRYPI_FIRMWARE' by
itself prevents the touchscreen driver from being built-in when the
firmware is configured as a module. However, the '|| COMPILE_TEST' still
allows it unless we explicitly prevent that configuration with
'|| (RASPBERRYPI_FIRMWARE=n && COMPILE_TEST)'.
ld: drivers/input/touchscreen/raspberrypi-ts.o: in function `rpi_ts_probe':
raspberrypi-ts.c:(.text+0x3a8): undefined reference to `rpi_firmware_get'
ld: raspberrypi-ts.c:(.text+0x3a8): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `rpi_firmware_get'
ld: raspberrypi-ts.c:(.text+0x4c8): undefined reference to `rpi_firmware_property'
ld: raspberrypi-ts.c:(.text+0x4c8): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `rpi_firmware_property'
Rework so that TOUCHSCREEN_RASPBERRYPI_FW depends on
RASPBERRYPI_FIRMWARE=n if COMPILE_TEST is enabled.
Fixes: 0b9f28fed3 ("Input: add official Raspberry Pi's touchscreen driver")
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support for the SteelSeries Stratus Duo, a wireless Xbox 360
controller. The Stratus Duo ships with a USB dongle to enable wireless
connectivity, but it can also function as a wired controller by connecting
it directly to a PC via USB, hence the need for two USD PIDs. 0x1430 is the
dongle, and 0x1431 is the controller.
Signed-off-by: Tom Panfil <tom@steelseries.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Unfortunately the evervision focaltech implementation uses two offset
registers, one for the x coordinate and one for y.
This patch extends the driver to handle those offset registers only for
devices that support these.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Currently only the threshold and gain parameters can be read.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Evervision displays are using different Focaltech touchscreen
controllers. This commit adds the initial support for the ones using the
FT5726 controller. Receiving the touch data is the same as for the
GENERIC_FT but the x and y cooridnates are swapped. The main differences
are the register addresses where the GAIN and THRESHOLD parameters are
stored.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
iSOrt includes in alphabetical order and remove duplicated include file
linux/kernel.h
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
One of the more common cases of allocation size calculations is finding the
size of a structure that has a zero-sized array at the end, along with memory
for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can now
use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
One of the more common cases of allocation size calculations is finding the
size of a structure that has a zero-sized array at the end, along with
memory for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can now
use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.20' into next
Merge with mainline to bring in the new APIs.
We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.
This change was generated with the following Coccinelle SmPL patch:
@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@
-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
regmap_bulk_read() can return a non zero value on failure. The fix checks
if the function call succeeded before calling mod_timer. The issue was
identified by a static analysis tool.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The touchkey variant found on aries board is slighty different,
it uses a fixed regulator and writes/read to the same place
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Not all devices use the same keycodes in the same order,
so add possibility to define keycodes for buttons present
on actual hardware.
If keycodes property is not present, we assume that device has
at least MENU and BACK keys.
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
tm2-touchkey doesn't have brightness levels, but only on/off states,
so replace LED_FULL with LED_ON.
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The touchkey on midas boards is almost identical.
The only real difference is that it uses the same register for both
keycode and base.
Signed-off-by: Simon Shields <simon@lineageos.org>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Microsoft documenation for the PNP0C40 device aka the
"Windows-compatible button array" describes the 5th GpioInt listed in
the resources as: '5. Interrupt corresponding to the "Rotation Lock"
button, if supported'.
Notice this describes the 5th entry as a button while we sofar have been
mapping it to EV_SW, SW_ROTATE_LOCK. On my Point of View TAB P1006W-232
which actually comes with a rotation-lock button, the button indeed is a
button and not a slider/switch. An image search for other Windows tablets
has found 2 more models with a rotation-lock button and on both of those
it too is a push-button and not a slider/switch.
Further evidence can be found in the HUT extension HUTRR52 from Microsoft
which adds rotation lock support to the HUT, which describes 2 different
usages: "0xC9 System Display Rotation Lock Button" and
"0xCA System Display Rotation Lock Slider Switch" note that switch is seen
as a separate thing here and the non switch wording is an exact match for
the "Windows-compatible button array" spec wording.
TL;DR: our current mapping of the 5th GPIO to SW_ROTATE_LOCK is wrong
because the 5th GPIO is for a push-button not a switch.
This commit fixes this by maping the 5th GPIO to KEY_ROTATE_LOCK_TOGGLE.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The ACPI0011 _DSD button descriptor on a CHT based Intel Compute Sticks
contains a mapping for usage-page 0x01 usage-id 0xca.
As described in hutrr52_system_display_rotation_lock_controls_0.pdf this
should be mapped as a "System Display Rotation Lock Slider Switch", this
commit adds support for this, silencing the following warning:
soc_button_array ACPI0011:00: Unknown button index 4 upage 01 usage ca,
ignoring
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
"A tiny pull request this merge window unfortunately, should get more
material in for the next release:
- new driver for Raspberry Pi's touchscreen (firmware interface)
- miscellaneous input driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G
Input: atmel_mxt_ts - don't try to free unallocated kernel memory
Input: drv2667 - fix indentation issues
Input: touchscreen - fix coding style issue
Input: add official Raspberry Pi's touchscreen driver
Input: nomadik-ske-keypad - fix a loop timeout test
Input: rotary-encoder - don't log EPROBE_DEFER to kernel log
Input: olpc_apsp - remove set but not used variable 'np'
Input: olpc_apsp - enable the SP clock
Input: olpc_apsp - check FIFO status on open(), not probe()
Input: olpc_apsp - drop CONFIG_OLPC dependency
clk: mmp2: add SP clock
dt-bindings: marvell,mmp2: Add clock id for the SP clock
Input: ad7879 - drop platform data support
Subsystem:
- new %ptR printk format
- rename core files
- allow registration of multiple nvmem devices
New driver:
- i.MX system controller RTC
Drivers:
- abx80x: handle voltage ioctls, correct binding doc
- m41t80: correct month in alarm reads
- pcf85363: add pcf85263 support
- pcf8523: properly handle battery low flag
- s3c: limit alarm to one year in the future as ALMYEAR is broken
- sun6i: rework clock output binding
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Merge tag 'rtc-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Subsystem:
- new %ptR printk format
- rename core files
- allow registration of multiple nvmem devices
New driver:
- i.MX system controller RTC
Driver updates:
- abx80x: handle voltage ioctls, correct binding doc
- m41t80: correct month in alarm reads
- pcf85363: add pcf85263 support
- pcf8523: properly handle battery low flag
- s3c: limit alarm to one year in the future as ALMYEAR is broken
- sun6i: rework clock output binding"
* tag 'rtc-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (54 commits)
rtc: rename core files
rtc: nvmem: fix possible use after free
rtc: add i.MX system controller RTC support
dt-bindings: fsl: scu: add rtc binding
rtc: pcf2123: Add Microcrystal rv2123
rtc: class: reimplement devm_rtc_device_register
rtc: enforce rtc_timer_init private_data type
rtc: abx80x: Implement RTC_VL_READ,CLR ioctls
rtc: pcf85363: Add support for NXP pcf85263 rtc
dt-bindings: rtc: pcf85363: Document pcf85263 real-time clock
rtc: pcf8523: don't return invalid date when battery is low
dt-bindings: rtc: use a generic node name for ds1307
PM: Switch to use %ptR
m68k/mac: Switch to use %ptR
Input: hp_sdc_rtc - Switch to use %ptR
rtc: tegra: Switch to use %ptR
rtc: s5m: Switch to use %ptR
rtc: s3c: Switch to use %ptR
rtc: rx8025: Switch to use %ptR
rtc: rx6110: Switch to use %ptR
...
This adds ELAN0501 to the ACPI table to support Elan touchpad found in ASUS
Aspire F5-573G.
Signed-off-by: Patrick Dreyer <Patrick.Dreyer@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If the user attempts to update Atmel device with an invalid configuration
cfg file, error handling code is trying to free cfg file memory which is
not allocated yet hence results into kernel crash.
This patch fixes the order of memory free operations.
Signed-off-by: Sanjeev Chugh <sanjeev_chugh@mentor.com>
Fixes: a4891f1058 ("Input: atmel_mxt_ts - zero terminate config firmware file")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull parisc updates from Helge Deller:
"The major change in this patchset is the new system call table
generation support from Firoz Khan"
* 'parisc-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: syscalls: ignore nfsservctl for other architectures
parisc: generate uapi header and system call table files
parisc: add system call table generation support
parisc: remove __NR_Linux from uapi header file.
parisc: add __NR_syscalls along with __NR_Linux_syscalls
parisc: move __IGNORE* entries to non uapi header
parisc: Fix HP SDC hpa address output
parisc: Fix serio address output
parisc: Split out alternative live patching code
There are some statements that are indented incorrectly, fix this by
removing the extra tabs.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
"Switching a few devices with Synaptics over to SMbus and disabling
SMbus on a couple devices with Elan touchpads as they need more
plumbing on PS/2 side"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics - enable SMBus for HP EliteBook 840 G4
Input: elantech - disable elan-i2c for P52 and P72
Input: synaptics - enable RMI on ThinkPad T560
Input: omap-keypad - fix idle configuration to not block SoC idle states
dmesg reports that "Your touchpad (PNP: SYN3052 SYN0100 SYN0002 PNP0f13)
says it can support a different bus."
I've tested the offered psmouse.synaptics_intertouch=1 with 4.18.x and
4.19.x and it seems to work well. No problems seen with suspend/resume.
Also, it appears that RMI/SMBus mode is actually required for 3-4 finger
multitouch gestures to work -- otherwise they are not reported at all.
Information from dmesg in both modes:
psmouse serio3: synaptics: Touchpad model: 1, fw: 8.2, id: 0x1e2b1,
caps: 0xf00123/0x840300/0x2e800/0x0, board id: 3139, fw id: 2000742
psmouse serio3: synaptics: Trying to set up SMBus access
rmi4_smbus 6-002c: registering SMbus-connected sensor
rmi4_f01 rmi4-00.fn01: found RMI device,
manufacturer: Synaptics, product: TM3139-001, fw id: 2000742
Signed-off-by: Mantas Mikulėnas <grawity@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch fixes the coding style problem reported
by checkpatch.pl as below:
ERROR: foo* bar should be "foo *bar"
Signed-off-by: Hardik Singh Rathore <hardiksingh.k@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add's support to Raspberry Pi's 7" Touch device. Instead of using a
conventional bus all information is copied into a memory mapped area by
RPi's firmware.
Based on the driver found in RPi's kernel repository.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The current implementation of elan_i2c is known to not support those
2 laptops.
A proper fix is to tweak both elantech and elan_i2c to transmit the
correct information from PS/2, which would make a bad candidate for
stable.
So to give us some time for fixing the root of the problem, disable
elan_i2c for the devices we know are not behaving properly.
Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803600
Link: https://bugs.archlinux.org/task/59714
Fixes: df077237cf Input: elantech - detect new ICs and setup Host Notify for them
Cc: stable@vger.kernel.org # v4.18+
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The loop exits with "timeout" set to -1 not to 0.
Fixes: 1158f0f162 ("Input: add support for Nomadik SKE keypad controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use %ptR instead of open coded variant to print content of
struct rtc_time in human readable format.
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Show the hpa address of the HP SDC instead of a hashed value, e.g.:
HP SDC: HP SDC at 0xf0201000, IRQ 23 (NMI IRQ 24)
Signed-off-by: Helge Deller <deller@gmx.de>
We want the hpa addresses printed in the serio modules, not some
virtual ioremap()ed address, e.g.:
serio: gsc-ps2-keyboard port at 0xf0108000 irq 22 @ 2:0:11
serio: gsc-ps2-mouse port at 0xf0108100 irq 22 @ 2:0:12
Signed-off-by: Helge Deller <deller@gmx.de>
When a driver fails to bind because a resource it still missing it's not
helpful to report this as (usually) probing is repeated later.
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Before commit 7fd6d98b89 ("i2c: i801: Allow ACPI AML access I/O
ports not reserved for SMBus"), enabling RMI on the T560 would cause
the touchpad to stop working after resuming from suspend. Now that
this issue is fixed, RMI can be enabled safely and works fine.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Yussuf Khalil <dev@pp3345.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
With PM enabled, I noticed that pressing a key on the droid4 keyboard will
block deeper idle states for the SoC. Let's fix this by using IRQF_ONESHOT
and stop constantly toggling the device OMAP4_KBD_IRQENABLE register as
suggested by Dmitry Torokhov <dmitry.torokhov@gmail.com>.
From the hardware point of view, looks like we need to manage the registers
for OMAP4_KBD_IRQENABLE and OMAP4_KBD_WAKEUPENABLE together to avoid
blocking deeper SoC idle states. And with toggling of OMAP4_KBD_IRQENABLE
register now gone with IRQF_ONESHOT, also the SoC idle state problem is
gone during runtime. We still also need to clear OMAP4_KBD_WAKEUPENABLE in
omap4_keypad_close() though to pair it with omap4_keypad_open() to prevent
blocking deeper SoC idle states after rmmod omap4-keypad.
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
"Mostly new IDs for Elan/Synaptics touchpads, plus a few small fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: omap-keypad - fix keyboard debounce configuration
Input: xpad - quirk all PDP Xbox One gamepads
Input: synaptics - enable SMBus for HP 15-ay000
Input: synaptics - add PNP ID for ThinkPad P50 to SMBus
Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR
Input: elan_i2c - add support for ELAN0621 touchpad
Input: hyper-v - fix wakeup from suspend-to-idle
Input: atkbd - clean up indentation issue
Input: st1232 - convert to SPDX identifiers
Input: migor_ts - convert to SPDX identifiers
Input: dt-bindings - fix a typo in file input-reset.txt
Input: cros_ec_keyb - fix button/switch capability reports
Input: elan_i2c - add ELAN0620 to the ACPI table
Input: matrix_keypad - check for errors from of_get_named_gpio()
I noticed that the Android v3.0.8 kernel on droid4 is using different
keypad values from the mainline kernel and does not have issues with
keys occasionally being stuck until pressed again. Turns out there was
an earlier patch posted to fix this as "Input: omap-keypad: errata i689:
Correct debounce time", but it was never reposted to fix use macros
for timing calculations.
This updated version is using macros, and also fixes the use of the
input clock rate to use 32768KiHz instead of 32000KiHz. And we want to
use the known good Android kernel values of 3 and 6 instead of 2 and 6
in the earlier patch.
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
SMBus works fine for the touchpad with id SYN3221, used in the HP 15-ay000
series,
This device has been reported in these messages in the "linux-input"
mailing list:
* https://marc.info/?l=linux-input&m=152016683003369&w=2
* https://www.spinics.net/lists/linux-input/msg52525.html
Reported-by: Nitesh Debnath <niteshkd1999@gmail.com>
Reported-by: Teika Kazura <teika@gmx.com>
Signed-off-by: Teika Kazura <teika@gmx.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Noticed the other day the trackpoint felt different on my P50, then
realized it was because rmi4 wasn't loading for this machine
automatically. Suspend/resume, hibernate, and everything else seem to
work perfectly fine on here.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add ELAN061E to the ACPI table to support Elan touchpad found in Lenovo
IdeaPad 330-15ARR.
Signed-off-by: Noah Westervelt <nwestervelt@outlook.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Added the ability to detect the ELAN0621 touchpad found in some Lenovo
laptops.
Signed-off-by: Adam Wong <adam@adamwong.me>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/input/serio/olpc_apsp.c: In function 'olpc_apsp_probe':
drivers/input/serio/olpc_apsp.c:192:22: warning:
variable 'np' set but not used [-Wunused-but-set-variable]
It never used since introduction in commit b56ece9a3a ("Input: add OLPC
AP-SP driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Without the clock, the keyboard controller won't operate.
Tested on an OLPC XO 1.75.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Let's defer the FIFO status checking until open().
When we'll get a clk handle, this will allow us to defer clock enablement
until the device is actually used.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CONFIG_OLPC is specific to the x86 platform code, while the driver is for
an ARM-based laptop.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
It makes little sense but still possible to put Hyper-V guests into
suspend-to-idle state. To wake them up two wakeup sources were registered
in the past: hyperv-keyboard and hid-hyperv. However, since
commit eed4d47efe ("ACPI / sleep: Ignore spurious SCI wakeups from
suspend-to-idle") pm_wakeup_event() from these devices is ignored. Switch
to pm_wakeup_hard_event() API as these devices are actually the only
possible way to wakeup Hyper-V guests.
Fixes: eed4d47efe (ACPI / sleep: Ignore spurious SCI wakeups from suspend-to-idle)
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This driver supports configuration via platform data but
absolutely nothing in the upstream kernel uses it. Since this
configuration allows harmful practices such as encoding the
GPIO base for the chip, delete platform data support so that
no new platform using it gets introduced.
Also: include the right driver header, not <linux/gpio.h>.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Trivial fix to clean up indentation issues, add missing tab
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch updates license to use SPDX-License-Identifier
instead of verbose license text.
As original license mentioned, it is GPL-2.0 in SPDX.
Then, MODULE_LICENSE() should be "GPL v2" instead of "GPL".
See ${LINUX}/include/linux/module.h
"GPL" [GNU Public License v2 or later]
"GPL v2" [GNU Public License v2]
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch updates license to use SPDX-License-Identifier
instead of verbose license text.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The cros_ec_keyb_bs array lists buttons and switches together, expecting
that its users will match the appropriate type and bit fields. But
cros_ec_keyb_register_bs() only checks the 'bit' field, which causes
misreported input capabilities in some cases. For example, tablets
(e.g., Scarlet -- a.k.a. Acer Chromebook Tab 10) were reporting a SW_LID
capability, because EC_MKBP_POWER_BUTTON and EC_MKBP_LID_OPEN happen to
share the same bit.
(This has comedic effect on a tablet, in which a power-management daemon
then thinks this "lid" is closed, and so puts the system to sleep as
soon as it boots!)
To fix this, check both the 'ev_type' and 'bit' fields before reporting
the capability.
Tested with a lid (Kevin / Samsung Chromebook Plus) and without a lid
(Scarlet / Acer Chromebook Tab 10).
This error got introduced when porting the feature from the downstream
Chromium OS kernel to be upstreamed.
Fixes: cdd7950e7a ("input: cros_ec_keyb: Add non-matrix buttons and switches")
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add ELAN0620 to the ACPI table to support the elan touchpad in
the Lenovo IdeaPad 130-15IKB.
Signed-off-by: Patrick Gaskin <patrick@pgaskin.net>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
"of_get_named_gpio()" returns a negative error value if it fails
and drivers should check for this. This missing check was now
added to the matrix_keypad driver.
In my case "of_get_named_gpio()" returned -EPROBE_DEFER because
the referenced GPIOs belong to an I/O expander, which was not yet
probed at the point in time when the matrix_keypad driver was
loading. Because the driver did not check for errors from the
"of_get_named_gpio()" routine, it was assuming that "-EPROBE_DEFER"
is actually a GPIO number and continued as usual, which led to further
errors like this later on:
WARNING: CPU: 3 PID: 167 at drivers/gpio/gpiolib.c:114
gpio_to_desc+0xc8/0xd0
invalid GPIO -517
Note that the "GPIO number" -517 in the error message above is
actually "-EPROBE_DEFER".
As part of the patch a misleading error message "no platform data defined"
was also removed. This does not lead to information loss because the other
error paths in matrix_keypad_parse_dt() already print an error.
Signed-off-by: Christian Hoff <christian_hoff@gmx.net>
Suggested-by: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull XArray conversion from Matthew Wilcox:
"The XArray provides an improved interface to the radix tree data
structure, providing locking as part of the API, specifying GFP flags
at allocation time, eliminating preloading, less re-walking the tree,
more efficient iterations and not exposing RCU-protected pointers to
its users.
This patch set
1. Introduces the XArray implementation
2. Converts the pagecache to use it
3. Converts memremap to use it
The page cache is the most complex and important user of the radix
tree, so converting it was most important. Converting the memremap
code removes the only other user of the multiorder code, which allows
us to remove the radix tree code that supported it.
I have 40+ followup patches to convert many other users of the radix
tree over to the XArray, but I'd like to get this part in first. The
other conversions haven't been in linux-next and aren't suitable for
applying yet, but you can see them in the xarray-conv branch if you're
interested"
* 'xarray' of git://git.infradead.org/users/willy/linux-dax: (90 commits)
radix tree: Remove multiorder support
radix tree test: Convert multiorder tests to XArray
radix tree tests: Convert item_delete_rcu to XArray
radix tree tests: Convert item_kill_tree to XArray
radix tree tests: Move item_insert_order
radix tree test suite: Remove multiorder benchmarking
radix tree test suite: Remove __item_insert
memremap: Convert to XArray
xarray: Add range store functionality
xarray: Move multiorder_check to in-kernel tests
xarray: Move multiorder_shrink to kernel tests
xarray: Move multiorder account test in-kernel
radix tree test suite: Convert iteration test to XArray
radix tree test suite: Convert tag_tagged_items to XArray
radix tree: Remove radix_tree_clear_tags
radix tree: Remove radix_tree_maybe_preload_order
radix tree: Remove split/join code
radix tree: Remove radix_tree_update_node_t
page cache: Finish XArray conversion
dax: Convert page fault handlers to XArray
...
Pull tty ioctl updates from Al Viro:
"This is the compat_ioctl work related to tty ioctls.
Quite a bit of dead code taken out, all tty-related stuff gone from
fs/compat_ioctl.c. A bunch of compat bugs fixed - some still remain,
but all more or less generic tty-related ioctls should be covered
(remaining issues are in things like driver-private ioctls in a pcmcia
serial card driver not getting properly handled in 32bit processes on
64bit host, etc)"
* 'work.tty-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (53 commits)
kill TIOCSERGSTRUCT
change semantics of ldisc ->compat_ioctl()
kill TIOCSER[SG]WILD
synclink_gt(): fix compat_ioctl()
pty: fix compat ioctls
compat_ioctl - kill keyboard ioctl handling
gigaset: add ->compat_ioctl()
vt_compat_ioctl(): clean up, use compat_ptr() properly
gigaset: don't try to printk userland buffer contents
dgnc: don't bother with (empty) stub for TCXONC
dgnc: leave TIOC[GS]SOFTCAR to ldisc
remove fallback to drivers for TIOCGICOUNT
dgnc: break-related ioctls won't reach ->ioctl()
kill the rest of tty COMPAT_IOCTL() entries
dgnc: TIOCM... won't reach ->ioctl()
isdn_tty: TCSBRK{,P} won't reach ->ioctl()
kill capinc_tty_ioctl()
take compat TIOC[SG]SERIAL treatment into tty_compat_ioctl()
synclink: reduce pointless checks in ->ioctl()
complete ->[sg]et_serial() switchover
...
A small update with a couple of new APIs that are useful for some small
sets of devices:
- Split up the single_rw flagging to map read and write separately as
some devices support bulk operations for only read or only write.
- Add a write version of the noinc API.
- Clean up the code for LOG_DEVICE a bit.
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Merge tag 'regmap-v5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"A small update with a couple of new APIs that are useful for some
small sets of devices:
- Split up the single_rw flagging to map read and write separately as
some devices support bulk operations for only read or only write.
- Add a write version of the noinc API.
- Clean up the code for LOG_DEVICE a bit"
* tag 'regmap-v5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: use less #ifdef for LOG_DEVICE
regmap: Add regmap_noinc_write API
regmap: split up regmap_config.use_single_rw
regmap: fix comment for regmap.use_single_write
Dmitry writes:
"Input updates for 4.19-rc8
Just an addition to elan touchpad driver ACPI table."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15IGM
synaptics_detect() does not check whether sending commands to the
device succeeds and instead relies on getting unique data from the
device. Let's make sure we seed entire buffer with zeroes to make sure
we will not use garbage on stack that just happen to be 0x47.
Reported-by: syzbot+13cb3b01d0784e4ffc3f@syzkaller.appspotmail.com
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Notice that in this particular case, I placed the "fall through"
part at the beginning of the code comment, which is what GCC is
expecting to find.
Addresses-Coverity-ID: 114757 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add ELAN061C to the ACPI table to support Elan touchpad found in Lenovo
IdeaPad 330-15IGM.
Signed-off-by: Mikhail Nikiforov <jackxviichaos@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Notice that in this particular case, I replaced the "Fallthrough state"
commern with a proper "Fall through", which is what GCC is expecting to
find.
Addresses-Coverity-ID: 114758 ("Missing break in switch")
Addresses-Coverity-ID: 114759 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Loading then unloading wm97xx-ts.ko when CONFIG_AC97_BUS=m
causes a WARNING: from drivers/base/driver.c:
Unexpected driver unregister!
WARNING: CPU: 0 PID: 1709 at ../drivers/base/driver.c:193 driver_unregister+0x30/0x40
Fix this by only calling driver_unregister() with the same
condition that driver_register() is called.
Fixes: ae9d1b5fbd ("Input: wm97xx: add new AC97 bus support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
First of all, make it return int. Returning long when native method
had never allowed that is ridiculous and inconvenient.
More importantly, change the caller; if ldisc ->compat_ioctl() is NULL
or returns -ENOIOCTLCMD, tty_compat_ioctl() will try to feed cmd and
compat_ptr(arg) to ldisc's native ->ioctl().
That simplifies ->compat_ioctl() instances quite a bit - they only
need to deal with ioctls that are neither generic tty ones (those
would get shunted off to tty_ioctl()) nor simple compat pointer ones.
Note that something like TCFLSH won't reach ->compat_ioctl(),
even if ldisc ->ioctl() does handle it - it will be recognized
earlier and passed to tty_ioctl() (and ultimately - ldisc ->ioctl()).
For many ldiscs it means that NULL ->compat_ioctl() does the
right thing. Those where it won't serve (see e.g. n_r3964.c) are
also easily dealt with - we need to handle the numeric-argument
ioctls (calling the native instance) and, if such would exist,
the ioctls that need layout conversion, etc.
All in-tree ldiscs dealt with.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Dmitry writes:
"Input updates for v4.19-rc7
- we added a few scheduling points into various input interfaces to
ensure that large writes will not cause RCU stalls
- fixed configuring PS/2 keyboards as wakeup devices on newer
platforms
- added a new Xbox gamepad ID."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: uinput - add a schedule point in uinput_inject_events()
Input: evdev - add a schedule point in evdev_write()
Input: mousedev - add a schedule point in mousedev_write()
Input: i8042 - enable keyboard wakeups by default when s2idle is used
Input: xpad - add support for Xbox1 PDP Camo series gamepad
Some touchscreens, depending on the firmware and/or the digitizer, report
coordinates which never reach 0 along one or both of their axis.
This has been seen for example on the Silead touchscreens on a Onda V891w
and a Point of View mobii TAB-P800w(v2.0).
This commit adds support for touchscreen-min-x and touchscreen-min-y
device-properties which can be set to communicate the actual start
coordinates (rather then 0,0) to userspace.
This commit also drop the "(in pixels)" comment from the documentation
of the touchscreen-size-x and touchscreen-size-y properties. The comment
suggested that there is a relation between the range of reported
coordinates and the display resolution, which is only true for some
devices. The "(in pixels)" comment is replaced with "(maximum x coordinate
reported + 1)" to mirror the language describing the new touchscreen-min-x
and -min-y properties.
When set this fixes e.g. not being able to click things in the GNOME3
top-bar on the 2 example tablets.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To avoid bounce buffer when an i2c controller decides to use DMA for a
transaction, let's make out buffer that we use for reads DMA-safe and let
the master know that DMAing into it is safe.
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On AM335x, ti_am335x_tsc can wake up the system from suspend, mark the
IRQ as wakeup capable, so that device irq is not disabled during system
suspend.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Instead of TSCADC MFD device, mark TSC as wakeup source and change all
wakeup related PM calls to operate on TSC device.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
A certain silead controller (Chip ID: 0x56810000) loses its firmware
after suspend, causing the resume to fail. This patch tries to load
the firmware, should a resume error occur and retries the resuming.
Signed-off-by: Julian Sax <jsbc@gmx.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is how userspace checks for touchscreen devices most reliably.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Large writes to uinput interface may cause rcu stalls. Let's add
cond_resched() to the loop to avoid this.
Reviewed-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Large writes to evdev interface may cause rcu stalls. Let's add
cond_resched() to the loop to avoid this.
Reviewed-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
syzbot was able to trigger rcu stalls by calling write()
with large number of bytes.
Add a cond_resched() in the loop to avoid this.
Link: https://lkml.org/lkml/2018/8/23/1106
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot+9436b02171ac0894d33e@syzkaller.appspotmail.com
Reviewed-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Previously, on typical consumer laptops, pressing a key on the keyboard
when the system is in suspend would cause it to wake up (default or
unconditional behaviour). This happens because the EC generates a SCI
interrupt in this scenario.
That is no longer true on modern laptops based on Intel WhiskeyLake,
including Acer Swift SF314-55G, Asus UX333FA, Asus UX433FN and Asus
UX533FD. We confirmed with Asus EC engineers that the "Modern Standby"
design has been modified so that the EC no longer generates a SCI
in this case; the keyboard controller itself should be used for wakeup.
In order to retain the standard behaviour of being able to use the
keyboard to wake up the system, enable serio wakeups by default on
platforms that are using s2idle.
Link: https://lkml.kernel.org/r/CAB4CAwfQ0mPMqCLp95TVjw4J0r5zKPWkSvvkK4cpZUGE--w8bQ@mail.gmail.com
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The "Xbox One PDP Wired Controller - Camo series" has a different
product-id than the regular PDP controller and the PDP stealth series,
but it uses the same initialization sequence. This patch adds the
product-id of the camo series to the structures that handle the other
PDP Xbox One controllers.
Signed-off-by: Ramses Ramírez <ramzeto@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Dmitry writes:
"Input updates for v4.19-rc5
Just a few driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: uinput - allow for max == min during input_absinfo validation
Input: elantech - enable middle button of touchpad on ThinkPad P72
Input: atakbd - fix Atari CapsLock behaviour
Input: atakbd - fix Atari keymap
Input: egalax_ts - add system wakeup support
Input: gpio-keys - fix a documentation index issue
Both v4.16-rc7 commit 93afb1d6e7 ("Input: atmel_mxt_ts - switch from
OF to generic device properties") and v4.16-rc7 commit 96a938aa21
("Input: atmel_mxt_ts - remove platform data support") added includes of
"<linux/property.h>". Remove one of the duplicate includes to fix this.
Signed-off-by: George G. Davis <george_davis@mentor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
These values are inclusive, so a range of 1 requires min == max.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Adding 2 new touchpad IDs to support middle button support.
Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The CapsLock key on Atari keyboards is not a toggle, it does send the
normal make and break scancodes.
Drop the CapsLock toggle handling code, which did cause the CapsLock
key to merely act as a Shift key.
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fix errors in Atari keymap (mostly in keypad, help and undo keys).
Patch provided on debian-68k ML by Andreas Schwab <schwab@linux-m68k.org>,
keymap array size and unhandled scancode limit adjusted to 0x73 by me.
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch adds wakeup function support for egalax touch
screen, if "wakeup-source" is added to device tree's egalax
touch screen node, the wakeup function will be enabled, and
egalax touch screen will be able to wakeup system from suspend.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Split regmap_config.use_single_rw into use_single_read and
use_single_write. This change enables drivers of devices which only
support bulk operations in one direction to use the regmap_bulk_*()
functions for both directions and have their bulk operation split into
single operations only when necessary.
Update all struct regmap_config instances where use_single_rw==true to
instead set both use_single_read and use_single_write. No attempt was
made to evaluate whether it is possible to set only one of
use_single_read or use_single_write.
Signed-off-by: David Frey <dpfrey@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Most of the SoC updates in this cycle are cleanups and moves to more
modern infrastructure:
- Davinci was moved to common clock framework
- OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
keyboard interface (bitbanged AT keyboard via GPIO).
- Removal of some stale code for Renesas platforms
- Power management improvements for i.MX6LL
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM 32-bit SoC platform updates from Olof Johansson:
"Most of the SoC updates in this cycle are cleanups and moves to more
modern infrastructure:
- Davinci was moved to common clock framework
- OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
keyboard interface (bitbanged AT keyboard via GPIO).
- Removal of some stale code for Renesas platforms
- Power management improvements for i.MX6LL"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (112 commits)
ARM: uniphier: select RESET_CONTROLLER
arm64: uniphier: select RESET_CONTROLLER
ARM: uniphier: remove empty Makefile
ARM: exynos: Clear global variable on init error path
ARM: exynos: Remove outdated maintainer information
ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15
ARM: shmobile: r8a7779: hide unused r8a7779_platform_cpu_kill
soc: r9a06g032: don't build SMP files for non-SMP config
ARM: shmobile: Add the R9A06G032 SMP enabler driver
ARM: at91: pm: configure wakeup sources for ULP1 mode
ARM: at91: pm: add PMC fast startup registers defines
ARM: at91: pm: Add ULP1 mode support
ARM: at91: pm: Use ULP0 naming instead of slow clock
ARM: hisi: handle of_iomap and fix missing of_node_put
ARM: hisi: check of_iomap and fix missing of_node_put
ARM: hisi: fix error handling and missing of_node_put
ARM: mx5: Set the DBGEN bit in ARM_GPC register
ARM: imx51: Configure M4IF to avoid visual artifacts
ARM: imx: call imx6sx_cpuidle_init() conditionally for 6sll
ARM: imx: fix i.MX6SLL build
...
Pull i2c updates from Wolfram Sang:
- the core has now a lockless variant of i2c_smbus_xfer. Some open
coded versions of this got removed in drivers. This also enables
proper SCCB support in regmap.
- locking got a more precise naming. i2c_{un}lock_adapter() had to go,
and we know use i2c_lock_bus() consistently with flags like
I2C_LOCK_ROOT_ADAPTER and I2C_LOCK_SEGMENT to avoid ambiguity.
- the gpio fault injector got a new delicate testcase
- the bus recovery procedure got fixed to handle the new testcase
correctly
- a new quirk flag for controllers not able to handle zero length
messages together with driver updates to use it
- new drivers: FSI bus attached I2C masters, GENI I2C controller, Owl
family S900
- and a good set of driver improvements and bugfixes
* 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (77 commits)
i2c: rcar: implement STOP and REP_START according to docs
i2c: rcar: refactor private flags
i2c: core: ACPI: Make acpi_gsb_i2c_read_bytes() check i2c_transfer return value
i2c: core: ACPI: Properly set status byte to 0 for multi-byte writes
dt-bindings: i2c: rcar: Add r8a774a1 support
dt-bindings: i2c: sh_mobile: Add r8a774a1 support
i2c: imx: Simplify stopped state tracking
i2c: imx: Fix race condition in dma read
i2c: pasemi: remove hardcoded bus numbers on smbus
i2c: designware: Add SPDX license tag
i2c: designware: Convert to use struct i2c_timings
i2c: core: Parse SDA hold time from firmware
i2c: designware-pcidrv: Mark expected switch fall-through
i2c: amd8111: Mark expected switch fall-through
i2c: sh_mobile: use core to detect 'no zero length read' quirk
i2c: xlr: use core to detect 'no zero length' quirk
i2c: rcar: use core to detect 'no zero length' quirk
i2c: stu300: use core to detect 'no zero length' quirk
i2c: pmcmsp: use core to detect 'no zero length' quirk
i2c: mxs: use core to detect 'no zero length' quirk
...
- Add Cirrus Logic Madera Codec (CS47L35, CS47L85 and CS47L90/91) driver
- Add ChromeOS EC CEC driver
- Add ROHM BD71837 PMIC driver
- New Device Support
- Add support for Dialog Semi DA9063L PMIC variant to DA9063
- Add support for Intel Ice Lake to Intel-PLSS-PCI
- Add support for X-Powers AXP806 to AXP20x
- New Functionality
- Add support for USB Charging to the ChromeOS Embedded Controller
- Add support for HDMI CEC to the ChromeOS Embedded Controller
- Add support for HDMI CEC to Intel HDMI
- Add support for accessory detection to Madera devices
- Allow individual pins to be configured via DT' wlf,csnaddr-pd
- Provide legacy platform specific EEPROM/Watchdog commands; rave-sp
- Fix-ups
- Trivial renaming/spelling fixes; cros_ec, da9063-*
- Convert to Managed Resources (devm_*); da9063-*, ti_am335x_tscadc
- Transition to helper macros/functions; da9063-*
- Constify; kempld-core
- Improve error path/messages; wm8994-core
- Disable IRQs locally instead of relying on USB subsystem; dln2
- Remove unused code; rave-sp
- New exports; sec-core
- Bug Fixes
- Fix possible false I2C transaction error; arizona-core
- Fix declared memory area size; hi655x-pmic
- Fix checksum type; rave-sp
- Fix incorrect default serial port configuration: rave-sp
- Fix incorrect coherent DMA mask for sub-devices; sm501
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Merge tag 'mfd-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add Cirrus Logic Madera Codec (CS47L35, CS47L85 and CS47L90/91) driver
- Add ChromeOS EC CEC driver
- Add ROHM BD71837 PMIC driver
New Device Support:
- Add support for Dialog Semi DA9063L PMIC variant to DA9063
- Add support for Intel Ice Lake to Intel-PLSS-PCI
- Add support for X-Powers AXP806 to AXP20x
New Functionality:
- Add support for USB Charging to the ChromeOS Embedded Controller
- Add support for HDMI CEC to the ChromeOS Embedded Controller
- Add support for HDMI CEC to Intel HDMI
- Add support for accessory detection to Madera devices
- Allow individual pins to be configured via DT' wlf,csnaddr-pd
- Provide legacy platform specific EEPROM/Watchdog commands; rave-sp
Fix-upsL
- Trivial renaming/spelling fixes; cros_ec, da9063-*
- Convert to Managed Resources (devm_*); da9063-*, ti_am335x_tscadc
- Transition to helper macros/functions; da9063-*
- Constify; kempld-core
- Improve error path/messages; wm8994-core
- Disable IRQs locally instead of relying on USB subsystem; dln2
- Remove unused code; rave-sp
- New exports; sec-core
Bug Fixes:
- Fix possible false I2C transaction error; arizona-core
- Fix declared memory area size; hi655x-pmic
- Fix checksum type; rave-sp
- Fix incorrect default serial port configuration: rave-sp
- Fix incorrect coherent DMA mask for sub-devices; sm501"
* tag 'mfd-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (60 commits)
mfd: madera: Add register definitions for accessory detect
mfd: sm501: Set coherent_dma_mask when creating subdevices
mfd: bd71837: Devicetree bindings for ROHM BD71837 PMIC
mfd: bd71837: Core driver for ROHM BD71837 PMIC
media: platform: cros-ec-cec: Fix dependency on MFD_CROS_EC
mfd: sec-core: Export OF module alias table
mfd: as3722: Disable auto-power-on when AC OK
mfd: axp20x: Support AXP806 in I2C mode
mfd: axp20x: Add self-working mode support for AXP806
dt-bindings: mfd: axp20x: Add "self-working" mode for AXP806
mfd: wm8994: Allow to configure CS/ADDR Pulldown from dts
mfd: wm8994: Allow to configure Speaker Mode Pullup from dts
mfd: rave-sp: Emulate CMD_GET_STATUS on device that don't support it
mfd: rave-sp: Add legacy watchdog ping command translation
mfd: rave-sp: Add legacy EEPROM access command translation
mfd: rave-sp: Initialize flow control and parity of the port
mfd: rave-sp: Fix incorrectly specified checksum type
mfd: rave-sp: Remove unused defines
mfd: hi655x: Fix regmap area declared size for hi655x
mfd: ti_am335x_tscadc: Fix struct clk memory leak
...
Pull input updates from Dmitry Torokhov:
- a new driver for Rohm BU21029 touch controller
- new bitmap APIs: bitmap_alloc, bitmap_zalloc and bitmap_free
- updates to Atmel, eeti. pxrc and iforce drivers
- assorted driver cleanups and fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
MAINTAINERS: Add PhoenixRC Flight Controller Adapter
Input: do not use WARN() in input_alloc_absinfo()
Input: mark expected switch fall-throughs
Input: raydium_i2c_ts - use true and false for boolean values
Input: evdev - switch to bitmap API
Input: gpio-keys - switch to bitmap_zalloc()
Input: elan_i2c_smbus - cast sizeof to int for comparison
bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free()
md: Avoid namespace collision with bitmap API
dm: Avoid namespace collision with bitmap API
Input: pm8941-pwrkey - add resin entry
Input: pm8941-pwrkey - abstract register offsets and event code
Input: iforce - reorganize joystick configuration lists
Input: atmel_mxt_ts - move completion to after config crc is updated
Input: atmel_mxt_ts - don't report zero pressure from T9
Input: atmel_mxt_ts - zero terminate config firmware file
Input: atmel_mxt_ts - refactor config update code to add context struct
Input: atmel_mxt_ts - config CRC may start at T71
Input: atmel_mxt_ts - remove unnecessary debug on ENOMEM
Input: atmel_mxt_ts - remove duplicate setup of ABS_MT_PRESSURE
...
Here is the bit set of char/misc drivers for 4.19-rc1
There is a lot here, much more than normal, seems like everyone is
writing new driver subsystems these days... Anyway, major things here
are:
- new FSI driver subsystem, yet-another-powerpc low-level
hardware bus
- gnss, finally an in-kernel GPS subsystem to try to tame all of
the crazy out-of-tree drivers that have been floating around
for years, combined with some really hacky userspace
implementations. This is only for GNSS receivers, but you
have to start somewhere, and this is great to see.
Other than that, there are new slimbus drivers, new coresight drivers,
new fpga drivers, and loads of DT bindings for all of these and existing
drivers.
Full details of everything is in the shortlog.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the bit set of char/misc drivers for 4.19-rc1
There is a lot here, much more than normal, seems like everyone is
writing new driver subsystems these days... Anyway, major things here
are:
- new FSI driver subsystem, yet-another-powerpc low-level hardware
bus
- gnss, finally an in-kernel GPS subsystem to try to tame all of the
crazy out-of-tree drivers that have been floating around for years,
combined with some really hacky userspace implementations. This is
only for GNSS receivers, but you have to start somewhere, and this
is great to see.
Other than that, there are new slimbus drivers, new coresight drivers,
new fpga drivers, and loads of DT bindings for all of these and
existing drivers.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
android: binder: Rate-limit debug and userspace triggered err msgs
fsi: sbefifo: Bump max command length
fsi: scom: Fix NULL dereference
misc: mic: SCIF Fix scif_get_new_port() error handling
misc: cxl: changed asterisk position
genwqe: card_base: Use true and false for boolean values
misc: eeprom: assignment outside the if statement
uio: potential double frees if __uio_register_device() fails
eeprom: idt_89hpesx: clean up an error pointer vs NULL inconsistency
misc: ti-st: Fix memory leak in the error path of probe()
android: binder: Show extra_buffers_size in trace
firmware: vpd: Fix section enabled flag on vpd_section_destroy
platform: goldfish: Retire pdev_bus
goldfish: Use dedicated macros instead of manual bit shifting
goldfish: Add missing includes to goldfish.h
mux: adgs1408: new driver for Analog Devices ADGS1408/1409 mux
dt-bindings: mux: add adi,adgs1408
Drivers: hv: vmbus: Cleanup synic memory free path
Drivers: hv: vmbus: Remove use of slow_virt_to_phys()
Drivers: hv: vmbus: Reset the channel callback in vmbus_onoffer_rescind()
...
Here are the big staging/iio patches for 4.19-rc1.
Lots of churn here, with tons of cleanups happening in staging drivers,
a removal of an old crypto driver that no one was using (skein), and the
addition of some new IIO drivers. Also added was a "gasket" driver from
Google that needs loads of work and the erofs filesystem.
Even with adding all of the new drivers and a new filesystem, we are
only adding about 1000 lines overall to the kernel linecount, which
shows just how much cleanup happened, and how big the unused crypto
driver was.
All of these have been in the linux-next tree for a while now with no
reported issues.
Note, you will have a merge problem with a device tree IIO file and the
MAINTAINERS file, both resolutions are easy, just take all changed.
There will be a skein file merge issue as well, but that file got
deleted so just drop that.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO updates from Greg KH:
"Here are the big staging/iio patches for 4.19-rc1.
Lots of churn here, with tons of cleanups happening in staging
drivers, a removal of an old crypto driver that no one was using
(skein), and the addition of some new IIO drivers. Also added was a
"gasket" driver from Google that needs loads of work and the erofs
filesystem.
Even with adding all of the new drivers and a new filesystem, we are
only adding about 1000 lines overall to the kernel linecount, which
shows just how much cleanup happened, and how big the unused crypto
driver was.
All of these have been in the linux-next tree for a while now with no
reported issues"
* tag 'staging-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (903 commits)
staging:rtl8192u: Remove unused macro definitions - Style
staging:rtl8192u: Add spaces around '+' operator - Style
staging:rtl8192u: Remove stale comment - Style
staging: rtl8188eu: remove unused mp_custom_oid.h
staging: fbtft: Add spaces around / - Style
staging: fbtft: Erases some repetitive usage of function name - Style
staging: fbtft: Adjust some empty-line problems - Style
staging: fbtft: Removes one nesting level to help readability - Style
staging: fbtft: Changes gamma table to define.
staging: fbtft: A bit more information on dev_err.
staging: fbtft: Fixes some alignment issues - Style
staging: fbtft: Puts macro arguments in parenthesis to avoid precedence issues - Style
staging: rtl8188eu: remove unused array dB_Invert_Table
staging: rtl8188eu: remove whitespace, add missing blank line
staging: rtl8188eu: use is_multicast_ether_addr in rtw_sta_mgt.c
staging: rtl8188eu: remove whitespace - style
staging: rtl8188eu: cleanup block comment - style
staging: rtl8188eu: use is_multicast_ether_addr in rtl8188eu_xmit.c
staging: rtl8188eu: use is_multicast_ether_addr in recv_linux.c
staging: rtlwifi: refactor rtl_get_tcb_desc
...
- Enable mac_scsi PDMA on PowerBook 500,
- Generic dma_noncoherent_ops conversion,
- Time handling improvements,
- I/O accessor improvements,
- Conversion to MEMBLOCK and NO_BOOTMEM, to bring m68k in line with
other mainstream architectures,
- Miscellaneous fixes and cleanups,
- Defconfig updates.
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Merge tag 'm68k-for-v4.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
- Enable mac_scsi PDMA on PowerBook 500
- Generic dma_noncoherent_ops conversion
- Time handling improvements
- I/O accessor improvements
- Conversion to MEMBLOCK and NO_BOOTMEM, to bring m68k in line with
other mainstream architectures
- Miscellaneous fixes and cleanups
- Defconfig updates
* tag 'm68k-for-v4.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/defconfig: Update defconfigs for v4.18-rc6
m68k: switch to MEMBLOCK + NO_BOOTMEM
m68k/page_no.h: force __va argument to be unsigned long
m68k/bitops: convert __ffs to match generic declaration
m68k/io: Switch mmu variant to <asm-generic/io.h>
m68k/io: Move mem*io define guards to <asm/kmap.h>
Input: hilkbd - Add casts to HP9000/300 I/O accessors
net: mac8390: Use standard memcpy_{from,to}io()
m68k/io: Add missing ioremap define guards, fix typo
m68k: Remove unused set_clock_mmss() helpers
m68k: mac: Use time64_t in RTC handling
m68k: Use generic dma_noncoherent_ops
nubus: Set default dma mask for nubus_board devices
m68k/mac: Enable PDMA for PowerBook 500 series
Some of fuzzers set panic_on_warn=1 so that they can handle WARN()ings
the same way they handle full-blown kernel crashes. We used WARN() in
input_alloc_absinfo() to get a better idea where memory allocation
failed, but since then kmalloc() and friends started dumping call stack on
memory allocation failures anyway, so we are not getting anything extra
from WARN().
Because of the above, let's replace WARN with dev_err(). We use dev_err()
instead of simply removing message and relying on kcalloc() to give us
stack dump so that we'd know the instance of hardware device to which we
were trying to attach input device.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Warning level 2 was used: -Wimplicit-fallthrough=2
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Return statements in functions returning bool should use true or false
instead of an integer value.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Switch to bitmap API, i.e. bitmap_alloc(), bitmap_zalloc(), to show
clearly what we are allocating. Besides that it returns pointer of
bitmap type instead of opaque void *.
While here, replace memcpy() with bitmap_copy() for sake of consistency.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Switch to bitmap_zalloc() to show clearly what we are allocating.
Besides that it returns pointer of bitmap type instead of opaque void *.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Comparing an int to a size, which is unsigned, causes the int to become
unsigned, giving the wrong result. i2c_smbus_read_block_data can return the
result of i2c_smbus_xfer, whih can return a negative error code.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
int x;
expression e,e1;
identifier f;
@@
*x = f(...);
... when != x = e1
when != if (x < 0 || ...) { ... return ...; }
*x < sizeof(e)
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Since handling is abstracted in this driver, we need to add resin entry
in id table along with pwrkey_data.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In order to support resin thru the pwrkey driver (they are very
similar in nature) we need to abstract the handling in this driver.
First we abstract pull_up_bit and status_bit along in driver data.
The event code sent for key events is quiried from DT.
Since the device can be child of pon lookup regmap and reg from
parent if lookup fails (we are child).
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Internally, hilkbd uses "unsigned long" I/O addresses everywhere.
This works fine as:
- On PA-RISC, hilkbd uses the gsc_{read,write}b() I/O accessors, which
take "unsigned long" addresses,
- On m68k, hilkbd uses {read,write}b(), which are currently mapped to
{in,out}_8(), and convert the passed addresses to pointers
internally.
However, the asm-generic version of {read,write}b() does not perform
such conversions, and requires passing pointers instead. Hence add
casts to prepare for switching m68k to the asm-generic version.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* btn_avb_pegasus and btn_avb_tw are the same. Unify them
into btn_joystick_avb.
* btn_wheel is an exact copy of btn_joystick, so remove it.
Rename btn_avb_wheel into btn_wheel since it is the only
sane configuration for a wheel.
* Assign the (new) btn_wheel configuration to the "AVB Top
Shot Force Feedback Racing Wheel", because the previous
configuration was meant for a joystick.
Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If T9.CTRL DISAMP is set, then pressure is reported as zero. This means
some app layers (eg tslib) will ignore the contact.
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We use sscanf to parse the configuration file, so it's necessary to zero
terminate the configuration otherwise a truncated file can cause the
parser to run off into uninitialised memory.
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On devices with the T71 object, the config CRC will start there, rather
than at T7.
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The driver only registers one input device, which uses the screen
parameters from the first T9 instance. The first T63 instance also uses
those parameters.
It is incorrect to send input reports from the second instances of these
objects if they are enabled: the input scaling will be wrong and the
positions will be mashed together.
This also causes problems on Android if the number of slots exceeds 32.
In the future, this could be handled by looking for enabled touch object
instances and creating an input device for each one.
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Benson Leung <bleung@chromium.org>
Acked-by: Yufeng Shen <miletus@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
aiptek_probe() is never called in atomic context. It calls
usb_alloc_coherent() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC
can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
atp_open(), atp_recover() and atp_resume() are never called in atomic
context. They call usb_submit_urb() with GFP_ATOMIC, which is not
necessary. GFP_ATOMIC can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
usb_probe() is never called in atomic context. It calls
usb_alloc_coherent() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC
can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
powermate_alloc_buffers() is never called in atomic context. It calls
usb_alloc_coherent() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC
can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
keyspan_probe() is never called in atomic context. It calls
usb_alloc_coherent() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC
can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
wdt87xx_resume() is never called in atomic context. It calls mdelay() to
busily wait, which is not necessary. mdelay() can be replaced with
msleep().
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Move BTN_DEAD into the arrays with the specific button sets
instead of assigning it for every iforce device.
BTN_DEAD represents an optical sensor which detects if the
user is interacting with the device. On devices without that
optical sensor BTN_DEAD is repeatedly causing false inputs
on every status update of the joystick.
Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
- a couple of new device IDs added to Elan i2c touchpad controller
driver
- another entry in i8042 reset quirk list
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - add Lenovo LaVie Z to the i8042 reset list
Input: elan_i2c - add another ACPI ID for Lenovo Ideapad 330-15AST
MAINTAINERS: Add file patterns for serio device tree bindings
Input: elan_i2c - add ACPI ID for lenovo ideapad 330
Previously, packets that have been dumped are shown in the
kernel log like this:
drivers/input/joystick/iforce/iforce-packets.c: info cmd = ff04, data =
56
02
04
00
Use dev_dbg to dump the packages only when requested and to list
the parent device as well. Use printf logic to generate the hexdump
instead of looping through every char that needs to be printed (which
in turn fixes the unnecessary newlines and looks more clean in general).
The resulting package dump output does now look like this:
usb 2-8: iforce_dump_packet info cmd = ff04, data = 56 02 04 00
Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
I do not think Vojtech wants snail mail these days (and he mentioned that
nobody has ever sent him snail mail), and the address is not even valid
anymore, so let's remove snail-mail instructions from the sources.
Acked-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of splitting probe code into separate USB and input setup, flatten it.
This allows for easier inspection of order of set up steps, since the probe code
is reasonably small.
Move input-related initialization (phys) from USB block to input block.
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Tested-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is no need to store data buffer size, pointer to the buffer, or endpoint
address in pxrc structure, as they are either only needed during setup, or are
available from elsewhere.
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Tested-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is no need to have the device table first in the file.
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Tested-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
URB is the only resource that is not managed, and thus is destroyed too early,
before we unregister input device and stop URB in pxrc_close(). To fix it let's
install custom devm handler to free the URB at the right time in devm unwind
sequence.
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Tested-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The USB device is only needed during setup, so put it back after
initialization and do not store it in our private struct.
Also, the USB device is a parent of USB interface so our driver
model rules ensure that USB device should not disappear while
interface device is still there; there is no need to take reference
to the USB device.
Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Lenovo LaVie Z laptop requires i8042 to be reset in order to
consistently detect its Elantech touchpad. The nomux and kbdreset
quirks are not sufficient.
It's possible the other LaVie Z models from NEC require this as well.
Cc: stable@vger.kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add ELAN0622 to ACPI mapping table to support Elan touchpad found in
Ideapad 330-15AST.
Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Reported-by: Anant Shende <anantshende@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Mostly a series by Janusz Krzysztofik to clean up the
GPIO and input handling for ams-delta. Because of the
platform data changes, we decided that it's best to
merge the related input changes also via the arm-soc
tree so Dmitry Torokhov has acked the input changes.
Also included is a change to constify gpio_leds from
Arvind Yadav.
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Merge tag 'omap-for-v4.19/omap1-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc
SoC updates for omap1 for v4.19 merge window
Mostly a series by Janusz Krzysztofik to clean up the
GPIO and input handling for ams-delta. Because of the
platform data changes, we decided that it's best to
merge the related input changes also via the arm-soc
tree so Dmitry Torokhov has acked the input changes.
Also included is a change to constify gpio_leds from
Arvind Yadav.
* tag 'omap-for-v4.19/omap1-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP1: ams-delta: move late devices back to init_machine
Input: ams_delta_serio: Get FIQ buffer from platform_data
Input: ams_delta_serio: use IRQ resource
ARM: OMAP1: Get rid of <mach/ams-delta-fiq.h>
ARM: OMAP1: ams-delta FIQ: Keep serio input GPIOs requested
ARM: OMAP1: ams-delta FIQ: don't use static GPIO numbers
ARM: OMAP1: ams-delta: Hog "keybrd_dataout" GPIO pin
Input: ams_delta_serio: Replace power GPIO with regulator
Input: ams_delta_serio: use private structure
Input: ams_delta_serio: convert to platform driver
ARM: OMAP1: ams-delta: drop GPIO lookup table for serio device
ARM: OMAP1: ams-delta: assign LED GPIO numbers from descriptors
ARM: OMAP1: ams-delta: refactor late_init()
ARM: OMAP1: constify gpio_led
Signed-off-by: Olof Johansson <olof@lixom.net>
Locking the root adapter for __i2c_transfer will deadlock if the
device sits behind a mux-locked I2C mux. Switch to the finer-grained
i2c_lock_bus with the I2C_LOCK_SEGMENT flag. If the device does not
sit behind a mux-locked mux, the two locking variants are equivalent.
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
iforce_get_id_packet() invokes wait_event_interruptible_timeout() which
means it has to be in non-atomic context at that point, thus we can use
GFP_KERNEL instead of GFP_ATOMIC.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Variable num_cols is being assigned but is never used hence it is
redundant and can be removed.
Cleans up clang warning:
warning: variable ‘num_cols’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Keep the documentation link up-to-date in case anybody need to dive into it
again, and update email address while at it.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The only user of this driver in mainline does not make use of the module
parameters, so let's remove them. All properties for this driver should be
set through DT or pdata.
Use touchscreen_parse_properties() to automatically set some of the common
touchscreen properties and derive the axis inversion through that.
And finally, use touchscreen_report_pos() to handle the DT properties
automatically instead of doing the inversion ourselves.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Provide a match table so that the driver can be used in devicetree setups.
More properties are added in a later patch.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This allows Elan driver to bind to the touchpad found in Lenovo Ideapad 330
series laptops.
Signed-off-by: Donald Shanty III <dshanty@protonmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The cros-ec I2C and SPI transport drivers have been moved from MFD
subsystem to platform/chrome, at the same time, the config symbol
has been renamed and lost the MFD_ prefix So, update the help message
accordingly.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Benson Leung <bleung@chromium.org>
Recent kernels support asynchronous probing; most hyperv drivers
can be probed async easily so set the required flag for this.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Instead of exporting the FIQ buffer symbol to be used in
ams-delta-serio driver, pass it to the driver as platform_data.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The driver still obtains IRQ number from a hardcoded GPIO. Use IRQ
resource instead.
For this to work on Amstrad Delta, add the IRQ resource to
ams-delta-serio platform device structure. Obtain the IRQ number
assigned to "keybrd_clk" GPIO pin from FIQ initialization routine.
As a benefit, the driver no longer needs to include
<mach/board-ams-delta.h>.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Split the header file into two parts and move them to directories where
they belong.
Information on internal structure of FIQ buffer is moved to
<linux/platform_data/ams-delta-fiq.h> for ams-delta-serio driver use.
Other information used by ams-delta board init file and FIQ code is
made local to mach-omap1 root directory.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
From the very beginning, input GPIO pins of ams-delta serio port have
been used by FIQ handler, not serio driver.
Don't request those pins from the ams-delta-serio driver any longer,
instead keep them requested and initialized by the FIQ initialization
routine which already requests them and releases while identifying GPIO
IRQs.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
"keybrd_dataout" GPIO pin used to be initialized by ams-delta-serio
driver to a state safe for ams-delta-serio device function and not
changed thereafter. As such, it may be assumed not under the driver
control and responsibility for its initialization handed over to board
init file.
Introduce a GPIO hog table and take over control of the
"keybrd_dataout" GPIO pin from the ams-delta-serio driver.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Modify the driver so it no longer requests and manipulates the
"keybrd_pwr" GPIO pin but a "vcc" regulator supply instead.
For this to work with Amstrad Delta, define a regulator over the
"keybrd_pwr" GPIO pin with the "vcc" supply for ams-delta-serio device
and register it from the board file. Both assign an absulute GPIO
number to the soon depreciated .gpio member of the regulator config
structure, and also build and register a GPIO lookup table so it is
ready for use by the regulator driver as soon as its upcoming update
is applied.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Introduce a driver private structure and allocate it on device probe.
For now, use it instead of a static variable for storing a pointer to
serio structure. Subsequent patches will populate it with more members
as needed.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Convert the driver to an "ams-delta-serio" platform driver. For it to
be used with Amstrad Delta, register an "ams-delta-serio" platform
device from the board init file.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Pull input updates from Dmitry Torokhov:
- the main change is a fix for my brain-dead patch to PS/2 button
reporting for some protocols that made it in 4.17
- there is a new driver for Spreadtum vibrator that I intended to send
during merge window but ended up not sending the 2nd pull request.
Given that this is a brand new driver we should not see regressions
here
- a fixup to Elantech PS/2 driver to avoid decoding errors on Thinkpad
P52
- addition of few more ACPI IDs for Silead and Elan drivers
- RMI4 is switched to using IRQ domain code instead of rolling its own
implementation
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: psmouse - fix button reporting for basic protocols
Input: xpad - fix GPD Win 2 controller name
Input: elan_i2c_smbus - fix more potential stack buffer overflows
Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID
Input: elantech - fix V4 report decoding for module with middle key
Input: elantech - enable middle button of touchpads on ThinkPad P52
Input: do not assign new tracking ID when changing tool type
Input: make input_report_slot_state() return boolean
Input: synaptics-rmi4 - fix axis-swap behavior
Input: synaptics-rmi4 - fix the error return code in rmi_probe_interrupts()
Input: synaptics-rmi4 - convert irq distribution to irq_domain
Input: silead - add MSSL0002 ACPI HID
Input: goldfish_events - fix checkpatch warnings
Input: add Spreadtrum vibrator driver
The commit ba667650c5 ("Input: psmouse - clean up code") was pretty
brain-dead and broke extra buttons reporting for variety of PS/2 mice:
Genius, Thinkmouse and Intellimouse Explorer. We need to actually inspect
the data coming from the device when reporting events.
Fixes: ba667650c5 ("Input: psmouse - clean up code")
Reported-by: Jiri Slaby <jslaby@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The usual mixed bunch. Particular good to see is the generic
touch screen driver. Will be interesting to see if this works
for other ADCs without major changes.
Core features
* Channel types
- New position relative channel type primarily for touch screen
sensors to feed the generic touchscreen driver.
New device support
* ad5586
- Add support for the AD5311R DAC.
* Generic touch screen driver as an IIO consumer.
- Note this is in input, but due to dependencies is coming through
the IIO tree.
- Specific support for this added to the at91-sama5d2 ADC.
- Various necessary DT bindings added.
Staging Drops
* ADIS16060 gyro
- A device with a very odd interface that was never cleanly supported.
It's now very difficult to get, so unlikely it'll ever be fixed up.
Cleanups and minor features and fixes
* core
- Fix y2038 timestamp issues now the core support is in place.
* 104-quad-8
- Provide some defines for magic numbers to help readability.
- Fix an off by one error in register selection
* ad7606
- Put in a missing function parameter name in a prototype.
* adis16023
- Use generic sign_extend function rather than local version.
* adis16240
- Use generic sign_extend funciton rather than local version.
* at91-sama5d2
- Drop dependency on HAS_DMA now this is handled elsewhere. Will
improve build test coverage.
- Add oversampling ratio control. Note there is a minor ABI change
here to increase the apparent depth to 14 bits so as to allow
for transparent provision of different oversampling ratios that
drop the actual bit depth to 13 or 12 bits.
* hx711
- Add a MAINTAINERS entry for this device.
* inv_mpu6050
- Replace the timestamp fifo 'special' code with generic timestamp
handling.
- Switch to using local store of timestamp divider rather than rate
as that is more helpful for accurate time measurement.
- Fix an unaligned access that didn't seem to be causing any trouble.
- Use the fifo overflow bit to track the overflow status rather than
a software counter.
- New timestamping mechanism to deal with missed sample interrupts.
* stm32-adc
- Drop HAS_DMA build dependency.
* sun4i-gpadc
- Select REGMAP_IRQ a very rarely hit build issue fix.
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Merge tag 'iio-for-4.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
First set of IIO new device support, features and cleanups in the 4.19 cycle
The usual mixed bunch. Particular good to see is the generic
touch screen driver. Will be interesting to see if this works
for other ADCs without major changes.
Core features
* Channel types
- New position relative channel type primarily for touch screen
sensors to feed the generic touchscreen driver.
New device support
* ad5586
- Add support for the AD5311R DAC.
* Generic touch screen driver as an IIO consumer.
- Note this is in input, but due to dependencies is coming through
the IIO tree.
- Specific support for this added to the at91-sama5d2 ADC.
- Various necessary DT bindings added.
Staging Drops
* ADIS16060 gyro
- A device with a very odd interface that was never cleanly supported.
It's now very difficult to get, so unlikely it'll ever be fixed up.
Cleanups and minor features and fixes
* core
- Fix y2038 timestamp issues now the core support is in place.
* 104-quad-8
- Provide some defines for magic numbers to help readability.
- Fix an off by one error in register selection
* ad7606
- Put in a missing function parameter name in a prototype.
* adis16023
- Use generic sign_extend function rather than local version.
* adis16240
- Use generic sign_extend funciton rather than local version.
* at91-sama5d2
- Drop dependency on HAS_DMA now this is handled elsewhere. Will
improve build test coverage.
- Add oversampling ratio control. Note there is a minor ABI change
here to increase the apparent depth to 14 bits so as to allow
for transparent provision of different oversampling ratios that
drop the actual bit depth to 13 or 12 bits.
* hx711
- Add a MAINTAINERS entry for this device.
* inv_mpu6050
- Replace the timestamp fifo 'special' code with generic timestamp
handling.
- Switch to using local store of timestamp divider rather than rate
as that is more helpful for accurate time measurement.
- Fix an unaligned access that didn't seem to be causing any trouble.
- Use the fifo overflow bit to track the overflow status rather than
a software counter.
- New timestamping mechanism to deal with missed sample interrupts.
* stm32-adc
- Drop HAS_DMA build dependency.
* sun4i-gpadc
- Select REGMAP_IRQ a very rarely hit build issue fix.
This fixes using the controller with SDL2.
SDL2 has a naive algorithm to apply the correct settings to a controller.
For X-Box compatible controllers it expects that the controller name
contains a variation of a 'XBOX'-string.
This patch changes the identifier to contain "X-Box" as substring. Tested
with Steam and C-Dogs-SDL which both detect the controller properly after
adding this patch.
Fixes: c1ba08390a ("Input: xpad - add GPD Win 2 Controller USB IDs")
Cc: stable@vger.kernel.org
Signed-off-by: Enno Boland <gottox@voidlinux.eu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Commit 40f7090bb1 ("Input: elan_i2c_smbus - fix corrupted stack")
fixed most of the functions using i2c_smbus_read_block_data() to
allocate a buffer with the maximum block size. However three
functions were left unchanged:
* In elan_smbus_initialize(), increase the buffer size in the same
way.
* In elan_smbus_calibrate_result(), the buffer is provided by the
caller (calibrate_store()), so introduce a bounce buffer. Also
name the result buffer size.
* In elan_smbus_get_report(), the buffer is provided by the caller
but happens to be the right length. Add a compile-time assertion
to ensure this remains the case.
Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add ELAN0618 to the list of supported touchpads; this ID is used in
Lenovo v330 15IKB devices.
Signed-off-by: Alexandr Savca <alexandr.savca@saltedge.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some touchpad has middle key and it will be indicated in bit 2 of packet[0].
We need to fix V4 formation's byte mask to prevent error decoding.
Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
PNPID is better way to identify the type of touchpads.
Enable middle button support on 2 types of touchpads on Lenovo P52.
Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
As we move stuff around, some doc references are broken. Fix some of
them via this script:
./scripts/documentation-file-ref-check --fix
Manually checked if the produced result is valid, removing a few
false-positives.
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Coly Li <colyli@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
The script:
./scripts/documentation-file-ref-check --fix
Gives multiple hints for broken references on some files.
Manually use the one that applies for some files.
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: James Morris <james.morris@microsoft.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Call pm_wakeup_event on every interrupt. This should help us in identifying
if keyboard was a potential wake reason for the last resume.
Signed-off-by: Ravi Chandra Sadineni <ravisadineni@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Remove the unnecessary check before calling pm_wakeup_event. If the
device is not wake enabled, this call is no-op anyway.
Signed-off-by: Ravi Chandra Sadineni <ravisadineni@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The license text is specifying "GPLv2" but the MODULE_LICENSE is set to
GPL which means GNU Public License v2 or later. When MODULE_LICENSE and
boiler plate does not match, go for boiler plate license.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
It is now only possible to control if multi-touch virtual device
is created or not (via the corresponding XenStore entries),
but keyboard and pointer devices are always created.
In some cases this is not desirable. For example, if virtual
keyboard device is exposed to Android then the latter won't
automatically show on-screen keyboard as it expects that a
physical keyboard device can be used for typing.
Utilize keyboard and pointer device XenStore feature fields to
configure which virtual devices are created:
- set "feature-disable-keyboard" to 1 if no keyboard device
needs to be created
- set "feature-disable-pointer" to 1 if no pointer device
needs to be created
Keep old behavior by default.
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Suggested-by: Andrii Chepurnyi <andrii_chepurnyi@epam.com>
Tested-by: Andrii Chepurnyi <andrii_chepurnyi@epam.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
kbdif protocol describes multi-touch device parameters as a
part of frontend's XenBus configuration nodes while they
belong to backend's configuration. Fix this by reading the
parameters as defined by the protocol.
Fixes: 49aac8204d ("Input: xen-kbdfront - add multi-touch support")
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We allow changing tool type (from MT_TOOL_FINGER to MT_TOOL_PALM) so we
should not be forcing new tracking ID for the slot.
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The documentation for the touchscreen-swapped-x-y property states that
swapping is done after inverting if both are used. RMI4 did it the other
way around, leading to inconsistent behavior with regard to other
touchscreens.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The error return code PTR_ERR(data->irqdomain) is always 0 since
data->irqdomain is equal to NULL in this error handling case.
Fixes: 24d28e4f12 ("Input: synaptics-rmi4 - convert irq distribution to irq_domain")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds a generic resistive touchscreen (GRTS) driver, which is based
on an IIO device (an ADC). It must be connected to the channels of an ADC
to receive touch data. Then it will feed the data into the input subsystem
where it registers an input device.
It uses an IIO callback buffer to register to the IIO device
Some parts of this patch are based on initial original work by
Mohamed Jamsheeth Hajanajubudeen and Bandaru Venkateswara Swamy
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
- Use overflow helpers in 2-factor allocators (Kees, Rasmus)
- Introduce overflow test module (Rasmus, Kees)
- Introduce saturating size helper functions (Matthew, Kees)
- Treewide use of struct_size() for allocators (Kees)
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Comment: Kees Cook <kees@outflux.net>
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Merge tag 'overflow-v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull overflow updates from Kees Cook:
"This adds the new overflow checking helpers and adds them to the
2-factor argument allocators. And this adds the saturating size
helpers and does a treewide replacement for the struct_size() usage.
Additionally this adds the overflow testing modules to make sure
everything works.
I'm still working on the treewide replacements for allocators with
"simple" multiplied arguments:
*alloc(a * b, ...) -> *alloc_array(a, b, ...)
and
*zalloc(a * b, ...) -> *calloc(a, b, ...)
as well as the more complex cases, but that's separable from this
portion of the series. I expect to have the rest sent before -rc1
closes; there are a lot of messy cases to clean up.
Summary:
- Introduce arithmetic overflow test helper functions (Rasmus)
- Use overflow helpers in 2-factor allocators (Kees, Rasmus)
- Introduce overflow test module (Rasmus, Kees)
- Introduce saturating size helper functions (Matthew, Kees)
- Treewide use of struct_size() for allocators (Kees)"
* tag 'overflow-v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
treewide: Use struct_size() for devm_kmalloc() and friends
treewide: Use struct_size() for vmalloc()-family
treewide: Use struct_size() for kmalloc()-family
device: Use overflow helpers for devm_kmalloc()
mm: Use overflow helpers in kvmalloc()
mm: Use overflow helpers in kmalloc_array*()
test_overflow: Add memory allocation overflow tests
overflow.h: Add allocation size calculation helpers
test_overflow: Report test failures
test_overflow: macrofy some more, do more tests for free
lib: add runtime test of check_*_overflow functions
compiler.h: enable builtin overflow checkers and add fallback code
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
instance = kmalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = kmalloc(struct_size(instance, entry, count), GFP_KERNEL);
This patch makes the changes for kmalloc()-family (and kvmalloc()-family)
uses. It was done via automatic conversion with manual review for the
"CHECKME" non-standard cases noted below, using the following Coccinelle
script:
// pkey_cache = kmalloc(sizeof *pkey_cache + tprops->pkey_tbl_len *
// sizeof *pkey_cache->table, GFP_KERNEL);
@@
identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@
- alloc(sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP)
+ alloc(struct_size(VAR, ELEMENT, COUNT), GFP)
// mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL);
@@
identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@
- alloc(sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP)
+ alloc(struct_size(VAR, ELEMENT, COUNT), GFP)
// Same pattern, but can't trivially locate the trailing element name,
// or variable name.
@@
identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
expression GFP;
expression SOMETHING, COUNT, ELEMENT;
@@
- alloc(sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP)
+ alloc(CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP)
Signed-off-by: Kees Cook <keescook@chromium.org>
Pull input updates from Dmitry Torokhov:
- a new driver to ChipOne icn8505 based touchscreens
- on certain systems with Elan touch controllers they will be switched
away form PS/2 emulation and over to native SMbus mode
- assorted driver fixups and improvements
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (24 commits)
Input: elan_i2c - add ELAN0612 (Lenovo v330 14IKB) ACPI ID
Input: goodix - add new ACPI id for GPD Win 2 touch screen
Input: xpad - add GPD Win 2 Controller USB IDs
Input: ti_am335x_tsc - prevent system suspend when TSC is in use
Input: ti_am335x_tsc - ack pending IRQs at probe and before suspend
Input: cros_ec_keyb - mark cros_ec_keyb driver as wake enabled device.
Input: mk712 - update documentation web link
Input: atmel_mxt_ts - fix reset-gpio for level based irqs
Input: atmel_mxt_ts - require device properties present when probing
Input: psmouse-smbus - allow to control psmouse_deactivate
Input: elantech - detect new ICs and setup Host Notify for them
Input: elantech - add support for SMBus devices
Input: elantech - query the resolution in query_info
Input: elantech - split device info into a separate structure
Input: elan_i2c - add trackstick report
Input: usbtouchscreen - add sysfs attribute for 3M MTouch firmware rev
Input: ati_remote2 - fix typo 'can by' to 'can be'
Input: replace hard coded string with __func__ in pr_err()
Input: add support for ChipOne icn8505 based touchscreens
Input: gamecon - avoid using __set_bit() for capabilities
...
Convert the RMI driver to use the standard mechanism for
distributing IRQs to the various functions.
Tested on:
* S7300 (F11, F34, F54)
* S7817 (F12, F34, F54)
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Acked-by: Christopher Heiny <cheiny@synaptics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Silead touchscreen on the Chuwi Vi8 tablet uses MSSL0002 as ACPI HID,
rather then the usual MSSL1680 id.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add ELAN0612 to the list of supported touchpads; this ID is used in Lenovo
v330 14IKB devices.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199253
Signed-off-by: Johannes Wienke <languitar@semipol.de>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch adds the Spreadtrum vibrator driver, which embedded in the
Spreadtrum SC27xx series PMICs.
Signed-off-by: Xiaotong Lu <xiaotong.lu@spreadtrum.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
GPD Win 2 Website: http://www.gpd.hk/gpdwin2.asp
Tested on a unit from the first production run sent to Indiegogo backers
Signed-off-by: Ethan Lee <flibitijibibo@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
GPD Win 2 Website: http://www.gpd.hk/gpdwin2.asp
Tested on a unit from the first production run sent to Indiegogo backers
Signed-off-by: Ethan Lee <flibitijibibo@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Prevent system suspend while user has finger on touch screen,
because TSC is wakeup source and suspending device while in use will
result in failure to disable the module.
This patch uses pm_stay_awake() and pm_relax() APIs to prevent and
resume system suspend as required.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
It is seen that just enabling the TSC module triggers a HW_PEN IRQ
without any interaction with touchscreen by user. This results in first
suspend/resume sequence to fail as system immediately wakes up from
suspend as soon as HW_PEN IRQ is enabled in suspend handler due to the
pending IRQ. Therefore clear all IRQs at probe and also in suspend
callback for sanity.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Mark cros_ec_keyb has wake enabled by default. If we see a MKBP event
related to keyboard, call pm_wakeup_event() to make sure wakeup
triggers are accounted to keyb during suspend resume path.
Signed-off-by: Ravi Chandra Sadineni <ravisadineni@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
"We are switching a bunch of Lenovo devices with Synaptics touchpads
from PS/2 emulation over to native RMI/SMbus.
Given that all commits are marked for stable there is no point
delaying them till next release"
[ Also fix a too-small stack array for i2c communication in elan driver ]
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c_smbus - fix corrupted stack
Input: synaptics - add Lenovo 80 series ids to SMBus
Input: synaptics - add Intertouch support on X1 Carbon 6th and X280
Input: synaptics - Lenovo Thinkpad X1 Carbon G5 (2017) with Elantech trackpoints should use RMI
Input: synaptics - Lenovo Carbon X1 Gen5 (2017) devices should use RMI
At the mentioned address there's nothing found. By searching information
on the controller chip still can be found, so update the link to the
resulting page.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The current reset-gpio support triggers an interrupt storm on platforms
using the maxtouch with level based interrupt. The Motorola Droid 4,
which I used for some of the tests is not affected, since it uses a edge
based interrupt.
This change avoids the interrupt storm by enabling the device while its
interrupt is disabled. Afterwards we wait 100ms. This is important for
two reasons: The device is unresponsive for some time (~22ms for
mxt224E) and the CHG (interrupt) line is not working properly for 100ms.
We don't need to wait for any following interrupts, since the following
mxt_initialize() checks for bootloader mode anyways.
This fixes a boot issue on GE PPD (watchdog kills device due to
interrupt storm) and does not cause regression on Motorola Droid 4.
Fixes: f657b00df2 ("Input: atmel_mxt_ts - add support for reset line")
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The driver needs help determining whether it is dealing with a touchscreen
or a touchpad, and with button mapping. Previously we supported passing
this data via device properties, and also had DMI lists for Chromebooks
that specified Atmel devices in ACPI, but did not provide enough data
there. Now that chromeos_laptop driver is adjusted to supply necessary
device properties even for ACPI devices, we can drop the DMI tables and
refuse to probe if device properties are not attached to the device.
We use presence of "compatible" property to determine if device properties
are attached to the device or not and rely on chromeos_laptop to re-probe
the device after attaching missing device properties to it.
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.17-rc6' into next
Sync up with mainline to bring in Atmel controller changes for Caroline.
This seems to be Synaptics specific, as some Elan touchpads are not
correctly switching to SMBus if we call deactivate before switching to
SMBus on cold boot and on resume.
Tested with the T480s
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
New ICs are using a different scheme for the alternate bus parameter.
Given that they are new and are only using either PS2 only or PS2 + SMBus
Host Notify, we force those new ICs to use the SMBus solution for enhanced
reporting.
This allows the touchpad found on the Lenovo T480s to report 5 fingers
every 8 ms, instead of having a limit of 2 every 8 ms.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Many of the Elantech devices are connected through PS/2 and a different
bus (SMBus or plain I2C).
To not break any existing device, we only enable SMBus based
on a module parameter. If some laptops require the quirk to
be set, we will have to rely on a list of PNPIds or MDI matching
to individually expose those hardware over SMBus.
the parameter mentioned above is elantech_smbus from the psmouse
module.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The command ETP_RESOLUTION_QUERY also contains the bus information.
It is better to fetch it once, while we are querying for device
information.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for SMBus device support, move static device
information that we query form the touchpad upon initialization into
separate structure. This will allow us to query the device without
allocating memory first.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Elan touchpads over I2C/SMBus also can handle a trackstick.
Unfortunately, nothing tells us if the device supports trackstick (the
information lies in the PS/2 node), so rely on device properties to
determine whether to enable the trackstick node.
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1313939
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
New ICs (like the one on the Lenovo T480s) answer to
ETP_SMBUS_IAP_VERSION_CMD 4 bytes instead of 3. This corrupts the stack
as i2c_smbus_read_block_data() uses the values returned by the i2c
device to know how many data it need to return.
i2c_smbus_read_block_data() can read up to 32 bytes (I2C_SMBUS_BLOCK_MAX)
and there is no safeguard on how many bytes are provided in the return
value. Ensure we always have enough space for any future firmware.
Also 0-initialize the values to prevent any access to uninitialized memory.
Cc: <stable@vger.kernel.org> # v4.4.x, v4.9.x, v4.14.x, v4.15.x, v4.16.x
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This time, Lenovo decided to go with different pieces in its latest
series of Thinkpads.
For those we have been able to test:
- the T480 is using Synaptics with an IBM trackpoint
-> it behaves properly with or without intertouch, there is no point
not using RMI4
- the X1 Carbon 6th gen is using Synaptics with an IBM trackpoint
-> the touchpad doesn't behave properly under PS/2 so we have to
switch it to RMI4 if we do not want to have disappointed users
- the X280 is using Synaptics with an ALPS trackpoint
-> the recent fixes in the trackpoint handling fixed it so upstream
now works fine with or without RMI4, and there is no point not
using RMI4
- the T480s is using an Elan touchpad, so that's a different story
Cc: <stable@vger.kernel.org> # v4.14.x, v4.15.x, v4.16.x
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Synaptics devices reported it has Intertouch support,
and it fails via PS/2 as following logs:
psmouse serio2: Failed to reset mouse on synaptics-pt/serio0
psmouse serio2: Failed to enable mouse on synaptics-pt/serio0
Set these new devices to use SMBus to fix this issue, then they report
SMBus version 3 is using, patch:
https://patchwork.kernel.org/patch/9989547/ enabled SMBus ver 3 and
makes synaptics devices work fine on SMBus mode.
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Lenovo use two different trackpoints in the fifth generation Thinkpad X1
Carbon. Both are accessible over SMBUS/RMI but the pnpIDs are missing.
This patch is for the Elantech trackpoint specifically which also
reports SMB version 3 so rmi_smbus needs to be updated in order to
handle it.
For the record, I was not the first one to come up with this patch as it
has been floating around the internet for a while now. However, I have
spent significant time with testing and my efforts to find the original
author of the patch have been unsuccessful.
Signed-off-by: Edvard Holst <edvard.holst@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The touchpad on Lenovo Carbon X1 Gen 5 (2017 - Kabylake) is accessible over
SMBUS/RMI, so let's activate it by default.
Cc: stable@vger.kernel.org
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.
All trivial callers converted over.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Allow querying of the firmware revision of the device
example:
4.10
Tested on ZII RDU2 platform and on Intel x86_64 PC.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Change hardcoded string "input_set_capability" in pr_err() function call,
replace it with "%s" __func__ instead.
Signed-off-by: Nick Simonov <nicksimonovv@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The ChipOne icn8505 is an i2c capacitive touchscreen controller typically
used in cheap x86 tablets, this commit adds a driver for it.
Note the icn8505 is somewhat similar to the icn8318 and I started with
modifying that driver to support both, but in the end the differences were
too large and I decided to write a new driver instead.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
input_set_capability() and input_set_abs_param() will do it for you.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
input_set_capability() and input_set_abs_param() will do it for you.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
input_set_capability() and input_set_abs_param() will do it for you.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fix some coding style issues reported by checkpatch.pl. Mostly brackets
in macros, spacing and comment style.
Signed-off-by: Leo Sperling <leosperling97@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
"Just a few driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: atmel_mxt_ts - add missing compatible strings to OF device table
Input: atmel_mxt_ts - fix the firmware update
Input: atmel_mxt_ts - add touchpad button mapping for Samsung Chromebook Pro
MAINTAINERS: Rakesh Iyer can't be reached anymore
Input: hideep_ts - fix a typo in Kconfig
Input: alps - fix reporting pressure of v3 trackstick
Input: leds - fix out of bound access
Input: synaptics-rmi4 - fix an unchecked out of memory error path
Commit af503716ac ("i2c: core: report OF style module alias for devices
registered via OF") fixed how the I2C core reports the module alias when
devices are registered via OF.
But the atmel_mxt_ts driver only has an "atmel,maxtouch" compatible in its
OF device ID table, so if a Device Tree is using a different one, autoload
won't be working for the module (the matching works because the I2C device
ID table is used as a fallback).
So add compatible strings for each of the entries in the I2C device table.
Fixes: af503716ac ("i2c: core: report OF style module alias for devices registered via OF")
Reported-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[dtor: document which compatibles are deprecated and should not be used]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The automatic update mechanism will trigger an update if the
info block CRCs are different between maxtouch configuration
file (maxtouch.cfg) and chip.
The driver compared the CRCs without retrieving the chip CRC,
resulting always in a failure and firmware flashing action
triggered. Fix this issue by retrieving the chip info block
CRC before the check.
Note that this solution has the benefit that by reading the
information block and the object table into a contiguous region
of memory, we can verify the checksum at probe time. This means
we make sure that we are indeed talking to a chip that supports
object protocol correctly.
Using this patch on a kevin chromebook, the touchscreen and
touchpad drivers are able to match the CRC:
atmel_mxt_ts 3-004b: Family: 164 Variant: 14 Firmware V2.3.AA Objects: 40
atmel_mxt_ts 5-004a: Family: 164 Variant: 17 Firmware V2.0.AA Objects: 31
atmel_mxt_ts 3-004b: Resetting device
atmel_mxt_ts 5-004a: Resetting device
atmel_mxt_ts 3-004b: Config CRC 0x573E89: OK
atmel_mxt_ts 3-004b: Touchscreen size X4095Y2729
input: Atmel maXTouch Touchscreen as /devices/platform/ff130000.i2c/i2c-3/3-004b/input/input5
atmel_mxt_ts 5-004a: Config CRC 0x0AF6BA: OK
atmel_mxt_ts 5-004a: Touchscreen size X1920Y1080
input: Atmel maXTouch Touchpad as /devices/platform/ff140000.i2c/i2c-5/5-004a/input/input6
Signed-off-by: Nick Dyer <nick.dyer@shmanahar.org>
Acked-by: Benson Leung <bleung@chromium.org>
[Ezequiel: minor patch massage]
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch adds the correct platform data information for the Caroline
Chromebook, so that the mouse button does not get stuck in pressed state
after the first click.
The Samus button keymap and platform data definition are the correct
ones for Caroline, so they have been reused here.
Signed-off-by: Vittorio Gambaletta <linuxbugs@vittgam.net>
Signed-off-by: Salvatore Bellizzi <lkml@seppia.net>
Tested-by: Guenter Roeck <groeck@chromium.org>
Cc: stable@vger.kernel.org
[dtor: adjusted vendor spelling to match shipping firmware]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Revert commits
92af4dcb4e ("tracing: Unify the "boot" and "mono" tracing clocks")
127bfa5f43 ("hrtimer: Unify MONOTONIC and BOOTTIME clock behavior")
7250a4047a ("posix-timers: Unify MONOTONIC and BOOTTIME clock behavior")
d6c7270e91 ("timekeeping: Remove boot time specific code")
f2d6fdbfd2 ("Input: Evdev - unify MONOTONIC and BOOTTIME clock behavior")
d6ed449afd ("timekeeping: Make the MONOTONIC clock behave like the BOOTTIME clock")
72199320d4 ("timekeeping: Add the new CLOCK_MONOTONIC_ACTIVE clock")
As stated in the pull request for the unification of CLOCK_MONOTONIC and
CLOCK_BOOTTIME, it was clear that we might have to revert the change.
As reported by several folks systemd and other applications rely on the
documented behaviour of CLOCK_MONOTONIC on Linux and break with the above
changes. After resume daemons time out and other timeout related issues are
observed. Rafael compiled this list:
* systemd kills daemons on resume, after >WatchdogSec seconds
of suspending (Genki Sky). [Verified that that's because systemd uses
CLOCK_MONOTONIC and expects it to not include the suspend time.]
* systemd-journald misbehaves after resume:
systemd-journald[7266]: File /var/log/journal/016627c3c4784cd4812d4b7e96a34226/system.journal
corrupted or uncleanly shut down, renaming and replacing.
(Mike Galbraith).
* NetworkManager reports "networking disabled" and networking is broken
after resume 50% of the time (Pavel). [May be because of systemd.]
* MATE desktop dims the display and starts the screensaver right after
system resume (Pavel).
* Full system hang during resume (me). [May be due to systemd or NM or both.]
That happens on debian and open suse systems.
It's sad, that these problems were neither catched in -next nor by those
folks who expressed interest in this change.
Reported-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Reported-by: Genki Sky <sky@genki.is>,
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kevin Easton <kevin@guarana.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
This patch fixes a spelling error found in Kconfig.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Remove cite "Not sure what this does, but it is absolutely essential".
Extract initialization of trackstick part when touchpad is in passthrough
mode for v3 and v6 protocols into own function. Initialization for v3 is:
setscale11, setscale11, setscale11, nibble 0x9, nibble 0x4. Initialization
for v6 is: setscale11, setscale11, setscale11, setrate 0xC8, setrate 0x14.
Nibbles 0x9 and 0x4 for v3 protocol correspond to setrate 0xC8 and 0x14,
therefore these sequences are same.
When touchpad is in passthrough mode, then OS communicates with trackstick
and this sequence is some magic vendor PS/2 command to put trackstick into
"extended" mode. After that sequence trackstick starts reporting packets in
some vendor 4 bytes format (first byte is always 0xE8).
Next step after configuring trackstick to be in "extended" mode, is to
configure touchpad for v3 protocol to expect that trackstick reports data
in "extended" mode. For v3 protocol this is done by setting bit 1 in
register 0xC2C8 (offset 0x08 from base address 0xC2C0).
When both touchpad and trackstick are not configured for "extended" mode
then touchpad reports trackstick packets in different format, which is not
supported by psmouse/alps driver (yet).
In Cirque documentation GP-AN- 130823 INTERFACING TO GEN4 OVER I2C (PDF)
available at http://www.cirque.com/gen4-dev-resources is Logical Address
0xC2C8 named as PS2AuxControl and Bit Number 1 as ProcessAuxExtendedData
with description: Auxiliary device data is assumed to be extended data when
set.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch add support to handle MediaTek PMIC MT6397/MT6323 key
interrupts including pwrkey and homekey, also add setting for
long press key shutdown behavior.
Signed-off-by: Chen Zhong <chen.zhong@mediatek.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Incorporates a series from Dmitry to remove platform data from
chromeos_laptop.c, which was the only user of platform data
for the atmel_mxt_ts driver.
Includes a series to clean up sysfs and debugfs for cros_ec.
Other misc. cleanups.
Thanks,
Benson
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Merge tag 'chrome-platform-for-linus-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform
Pull chrome platform updates from Benson Leung:
- a series from Dmitry to remove platform data from chromeos_laptop.c,
which was the only user of platform data for the atmel_mxt_ts driver.
- a series to clean up sysfs and debugfs for cros_ec
- other misc cleanups
* tag 'chrome-platform-for-linus-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform: (22 commits)
platform/chrome: mfd/cros_ec_dev: Add sysfs entry to set keyboard wake lid angle
platform/chrome: cros_ec_debugfs: Add PD port info to debugfs
platform/chrome: cros_ec_debugfs: Use octal permissions '0444'
platform/chrome: cros_ec_sysfs: use permission-specific DEVICE_ATTR variants
platform/chrome: cros_ec_sysfs: introduce to_cros_ec_dev define.
platform/chrome: cros_ec_sysfs: Modify error handling
platform/chrome: cros_ec_lpc: Add support for Google devices using custom coreboot firmware
platform/chrome: cros_ec_lpc: wake up from s2idle on Chrome EC
Input: atmel_mxt_ts - remove platform data support
platform/chrome: chromeos_laptop - discard data for unneeded boards
platform/chrome: chromeos_laptop - use device properties for Pixel
platform/chrome: chromeos_laptop - rely on I2C to set up interrupt trigger
platform/chrome: chromeos_laptop - use I2C notifier to create devices
platform/chrome: chromeos_laptop - parse DMI IRQ data once
platform/chrome: chromeos_laptop - rework i2c peripherals initialization
platform/chrome: chromeos_laptop - factor out getting IRQ from DMI
platform/chrome: chromeos_laptop - introduce pr_fmt()
platform/chrome: chromeos_laptop - stop setting suspend mode for Atmel devices
platform/chrome: chromeos_laptop - add SPDX identifier
Input: atmel_mxt_ts - switch ChromeOS ACPI devices to generic props
...
UI_SET_LEDBIT ioctl() causes the following KASAN splat when used with
led > LED_CHARGING:
[ 1274.663418] BUG: KASAN: slab-out-of-bounds in input_leds_connect+0x611/0x730 [input_leds]
[ 1274.663426] Write of size 8 at addr ffff88003377b2c0 by task ckb-next-daemon/5128
This happens because we were writing to the led structure before making
sure that it exists.
Reported-by: Tasos Sahanidis <tasos@tasossah.com>
Tested-by: Tasos Sahanidis <tasos@tasossah.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Now that there are no users of custom Atmel platform data, and everyone
has switched to the generic device properties, we can remove support for
the platform data.
Acked-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Benson Leung <bleung@chromium.org>
Move older ChromeOS devices describing Atmel controllers in ACPI, but not
providing enough details to configure the controllers properly, from
platform data over to generic device properties. This will allow us
remove support for platform data later on, leaving only generic device
properties in place.
Acked-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Benson Leung <bleung@chromium.org>
Instead of using OF-specific APIs to fecth device properties, let's switch
to generic device properties API. This will allow us to use device
properties on legacy ChromeOS devices and get rid of platform data down
the road.
Acked-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Benson Leung <bleung@chromium.org>
The way we are supposed to put controller to sleep and wake it up does not
depend on the platform, but rather on controller itself, so we want to get
rid of suspend mode in platform data (and eventually get rid of platform
data completely). Unfortunately some early chromebooks (the original Pixel,
Acer C720) were shipped with config that requires manually re-enabling
touch reporting in T9. We will sort it out, but in the meantime let's
switch to a simple DMI quirk.
We'll keep pdata->suspend_mode for now and remove it when we rework
chromeos-laptop driver.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Benson Leung <bleung@chromium.org>
When extending the rmi_spi buffers, we must check that no out of memory
error occurs, otherwise we may access data above the currently allocated
memory.
Propagate the error code returned by 'rmi_spi_manage_pools()' instead.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
- new driver for PhoenixRC Flight Controller Adapter
- new driver for RAVE SP Power button
- fixes for autosuspend-related deadlocks in a few unput USB dirvers
- support for 2nd wheel in ATech PS/2 mouse
- fix for ALPS trackpoint detection on Thinkpad L570 and Latitude 7370
- bunch of cleanups in various in PS/2 protocols
- other assorted changes and fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits)
Input: i8042 - enable MUX on Sony VAIO VGN-CS series to fix touchpad
Input: stmfts, s6sy761 - update my e-mail
Input: stmfts - use async probe & suspend/resume to avoid 2s delay
Input: ALPS - fix TrackStick detection on Thinkpad L570 and Latitude 7370
Input: xpad - add PDP device id 0x02a4
Input: alps - report pressure of v3 and v7 trackstick
Input: pxrc - new driver for PhoenixRC Flight Controller Adapter
Input: usbtouchscreen - do not rely on input_dev->users
Input: usbtouchscreen - fix deadlock in autosuspend
Input: pegasus_notetaker - do not rely on input_dev->users
Input: pagasus_notetaker - fix deadlock in autosuspend
Input: synaptics_usb - do not rely on input_dev->users
Input: synaptics_usb - fix deadlock in autosuspend
Input: gpio-keys - add support for wakeup event action
Input: appletouch - use true and false for boolean values
Input: silead - add Chuwi Hi8 support
Input: analog - use get_cycles() on PPC
Input: stmpe-keypad - remove VLA usage
Input: i8042 - add Lenovo ThinkPad L460 to i8042 reset list
Input: add RAVE SP Powerbutton driver
...
The touch sensor buttons on Sony VAIO VGN-CS series laptops (e.g.
VGN-CS31S) are a separate PS/2 device. As the MUX is disabled for all
VAIO machines by the nomux blacklist, the data from touch sensor
buttons and touchpad are combined. The protocol used by the buttons is
probably similar to the touchpad protocol (both are Synaptics) so both
devices get enabled. The controller combines the data, creating a mess
which results in random button clicks, touchpad stopping working and
lost sync error messages:
psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 4
psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
psmouse serio1: issuing reconnect request
Add a new i8042_dmi_forcemux_table whitelist with VGN-CS.
With MUX enabled, touch sensor buttons are detected as separate device
(and left disabled as there's currently no driver), fixing all touchpad
problems.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull time(r) updates from Thomas Gleixner:
"A small set of updates for timers and timekeeping:
- The most interesting change is the consolidation of clock MONOTONIC
and clock BOOTTIME.
Clock MONOTONIC behaves now exactly like clock BOOTTIME and does
not longer ignore the time spent in suspend. A new clock
MONOTONIC_ACTIVE is provived which behaves like clock MONOTONIC in
kernels before this change. This allows applications to
programmatically check for the clock MONOTONIC behaviour.
As discussed in the review thread, this has the potential of
breaking user space and we might have to revert this. Knock on wood
that we can avoid that exercise.
- Updates to the NTP mechanism to improve accuracy
- A new kernel internal data structure to aid the ongoing Y2038 work.
- Cleanups and simplifications of the clocksource code.
- Make the alarmtimer code play nicely with debugobjects"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
alarmtimer: Init nanosleep alarm timer on stack
y2038: Introduce struct __kernel_old_timeval
tracing: Unify the "boot" and "mono" tracing clocks
hrtimer: Unify MONOTONIC and BOOTTIME clock behavior
posix-timers: Unify MONOTONIC and BOOTTIME clock behavior
timekeeping: Remove boot time specific code
Input: Evdev - unify MONOTONIC and BOOTTIME clock behavior
timekeeping: Make the MONOTONIC clock behave like the BOOTTIME clock
timekeeping: Add the new CLOCK_MONOTONIC_ACTIVE clock
timekeeping/ntp: Determine the multiplier directly from NTP tick length
timekeeping/ntp: Don't align NTP frequency adjustments to ticks
clocksource: Use ATTRIBUTE_GROUPS
clocksource: Use DEVICE_ATTR_RW/RO/WO to define device attributes
clocksource: Don't walk the clocksource list for empty override
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Merge tag 'media/v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- new CEC pin injection code for testing purposes
- DVB frontend cxd2099 promoted from staging
- new platform driver for Sony cxd2880 DVB devices
- new sensor drivers: mt9t112, ov2685, ov5695, ov772x, tda1997x,
tw9910.c
- removal of unused cx18 and ivtv alsa mixers
- the reneseas-ceu driver doesn't depend on soc_camera anymore and
moved from staging
- removed the mantis_vp3028 driver, unused since 2009
- s5p-mfc: add support for version 10 of the MSP
- added a decoder for imon protocol
- atomisp: lots of cleanups
- imx074 and mt9t031: don't depend on soc_camera anymore, being
promoted from staging
- added helper functions to better support DVB I2C binding
- lots of driver improvements and cleanups
* tag 'media/v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (438 commits)
media: v4l2-ioctl: rename a temp var that stores _IOC_SIZE(cmd)
media: fimc-capture: get rid of two warnings
media: dvb-usb-v2: fix a missing dependency of I2C_MUX
media: uvc: to the right check at uvc_ioctl_enum_framesizes()
media: cec-core: fix a bug at cec_error_inj_write()
media: tda9840: cleanup a warning
media: tm6000: avoid casting just to print pointer address
media: em28xx-input: improve error handling code
media: zr364xx: avoid casting just to print pointer address
media: vivid-radio-rx: add a cast to avoid a warning
media: saa7134-alsa: don't use casts to print a buffer address
media: solo6x10: get rid of an address space warning
media: zoran: don't cast pointers to print them
media: ir-kbd-i2c: change the if logic to avoid a warning
media: ir-kbd-i2c: improve error handling code
media: saa7134-input: improve error handling
media: s2255drv: fix a casting warning
media: ivtvfb: Cleanup some warnings
media: videobuf-dma-sg: Fix a weird cast
soc_camera: fix a weird cast on printk
...
Pull parisc updates from Helge Deller:
"Lots of small enhancements and fixes in this patchset:
- improved the x86-64 compatibility for PCI cards by returning -1UL
for timed out MMIO transactions (instead of crashing)
- fixed HPMC handler for PAT machines: size needs to be multiple of 16
- prepare machine_power_off() to be able to turn rp3410 and c8000
machines off via IMPI
- added code to extract machine info for usage with qemu
- some init sections fixes
- lots of fixes for sparse-, ubsan- and uninitalized variables
warnings"
* 'parisc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix out of array access in match_pci_device()
parisc: Add code generator for Qemu/SeaBIOS machine info
parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode
parisc: Fix HPMC handler by increasing size to multiple of 16 bytes
parisc: Directly call machine_power_off() in power button driver
parisc: machine_power_off() should call pm_power_off()
parisc/Kconfig: SMP kernels boot on all machines
parisc: Silence uninitialized variable warning in dbl_to_sgl_fcnvff()
parisc: Move various functions and strings to init section
parisc: Convert MAP_TYPE to cover 4 bits on parisc
parisc: Force to various endian types for sparse
parisc/gscps2: Fix sparse warnings
parisc/led: Fix sparse warnings
parisc/parport_gsc: Use NULL to avoid sparse warning
parisc/stifb: Use fb_memset() to avoid sparse warning
This removes the entire architecture code for blackfin, cris, frv, m32r,
metag, mn10300, score, and tile, including the associated device drivers.
I have been working with the (former) maintainers for each one to ensure
that my interpretation was right and the code is definitely unused in
mainline kernels. Many had fond memories of working on the respective
ports to start with and getting them included in upstream, but also saw
no point in keeping the port alive without any users.
In the end, it seems that while the eight architectures are extremely
different, they all suffered the same fate: There was one company
in charge of an SoC line, a CPU microarchitecture and a software
ecosystem, which was more costly than licensing newer off-the-shelf
CPU cores from a third party (typically ARM, MIPS, or RISC-V). It seems
that all the SoC product lines are still around, but have not used the
custom CPU architectures for several years at this point. In contrast,
CPU instruction sets that remain popular and have actively maintained
kernel ports tend to all be used across multiple licensees.
The removal came out of a discussion that is now documented at
https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
marking any ports as deprecated but remove them all at once after I made
sure that they are all unused. Some architectures (notably tile, mn10300,
and blackfin) are still being shipped in products with old kernels,
but those products will never be updated to newer kernel releases.
After this series, we still have a few architectures without mainline
gcc support:
- unicore32 and hexagon both have very outdated gcc releases, but the
maintainers promised to work on providing something newer. At least
in case of hexagon, this will only be llvm, not gcc.
- openrisc, risc-v and nds32 are still in the process of finishing their
support or getting it added to mainline gcc in the first place.
They all have patched gcc-7.3 ports that work to some degree, but
complete upstream support won't happen before gcc-8.1. Csky posted
their first kernel patch set last week, their situation will be similar.
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Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pul removal of obsolete architecture ports from Arnd Bergmann:
"This removes the entire architecture code for blackfin, cris, frv,
m32r, metag, mn10300, score, and tile, including the associated device
drivers.
I have been working with the (former) maintainers for each one to
ensure that my interpretation was right and the code is definitely
unused in mainline kernels. Many had fond memories of working on the
respective ports to start with and getting them included in upstream,
but also saw no point in keeping the port alive without any users.
In the end, it seems that while the eight architectures are extremely
different, they all suffered the same fate: There was one company in
charge of an SoC line, a CPU microarchitecture and a software
ecosystem, which was more costly than licensing newer off-the-shelf
CPU cores from a third party (typically ARM, MIPS, or RISC-V). It
seems that all the SoC product lines are still around, but have not
used the custom CPU architectures for several years at this point. In
contrast, CPU instruction sets that remain popular and have actively
maintained kernel ports tend to all be used across multiple licensees.
[ See the new nds32 port merged in the previous commit for the next
generation of "one company in charge of an SoC line, a CPU
microarchitecture and a software ecosystem" - Linus ]
The removal came out of a discussion that is now documented at
https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
marking any ports as deprecated but remove them all at once after I
made sure that they are all unused. Some architectures (notably tile,
mn10300, and blackfin) are still being shipped in products with old
kernels, but those products will never be updated to newer kernel
releases.
After this series, we still have a few architectures without mainline
gcc support:
- unicore32 and hexagon both have very outdated gcc releases, but the
maintainers promised to work on providing something newer. At least
in case of hexagon, this will only be llvm, not gcc.
- openrisc, risc-v and nds32 are still in the process of finishing
their support or getting it added to mainline gcc in the first
place. They all have patched gcc-7.3 ports that work to some
degree, but complete upstream support won't happen before gcc-8.1.
Csky posted their first kernel patch set last week, their situation
will be similar
[ Palmer Dabbelt points out that RISC-V support is in mainline gcc
since gcc-7, although gcc-7.3.0 is the recommended minimum - Linus ]"
This really says it all:
2498 files changed, 95 insertions(+), 467668 deletions(-)
* tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits)
MAINTAINERS: UNICORE32: Change email account
staging: iio: remove iio-trig-bfin-timer driver
tty: hvc: remove tile driver
tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
serial: remove tile uart driver
serial: remove m32r_sio driver
serial: remove blackfin drivers
serial: remove cris/etrax uart drivers
usb: Remove Blackfin references in USB support
usb: isp1362: remove blackfin arch glue
usb: musb: remove blackfin port
usb: host: remove tilegx platform glue
pwm: remove pwm-bfin driver
i2c: remove bfin-twi driver
spi: remove blackfin related host drivers
watchdog: remove bfin_wdt driver
can: remove bfin_can driver
mmc: remove bfin_sdh driver
input: misc: remove blackfin rotary driver
input: keyboard: remove bf54x driver
...
Because I will be leaving Samsung soon, for reachability update
my reference e-mail to etezian.org.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Executing stmfts_power_on() function lasts over 2 seconds, what
significantly slows down the boot and resume processes if driver is
compiled in. Avoid this delay by forcing this driver to be probed
and suspended/resumed asynchronously.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The primary interface for the touchpad device in Thinkpad L570 is SMBus,
so ALPS overlooked PS2 interface Firmware setting of TrackStick, and
shipped with TrackStick otp bit is disabled.
The address 0xD7 contains device number information, so we can identify
the device by checking this value, but to access it we need to enable
Command mode, and then re-enable the device. Devices shipped in Thinkpad
L570 report either 0x0C or 0x1D as device numbers, if we see them we assume
that the devices are DualPoints.
The same issue exists on Dell Latitude 7370.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196929
Fixes: 646580f793 ("Input: ALPS - fix multi-touch decoding on SS4 plus touchpads")
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Tested-by: Aaron Ma <aaron.ma@canonical.com>
Tested-by: Jonathan Liu <net147@gmail.com>
Tested-by: Jaak Ristioja <jaak@ristioja.ee>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Adds support for a PDP Xbox One controller with device ID
(0x06ef:0x02a4). The Product string for this device is "PDP Wired
Controller for Xbox One - Stealth Series | Phantom Black".
Signed-off-by: Francis Therien <frtherien@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
ALPS v3 and v7 packet formats reports trackstick pressure. This information
is already parsed in unused "z" variable.
ALPS SS4 S2 devices already reports trackstick pressure as ABS_PRESSURE
attribute, therefore reports pressure in the same way also for v3 and v7.
This patch also updates parsing v3 pressure information, it is also stored
in 7 bits.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This driver let you plug in your RC controller to the adapter and
use it as input device in various RC simulators.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If the device is unused and suspended, a call to open will cause the
device to autoresume through the call to usb_autopm_get_interface().
input_dev->users is already incremented by the input subsystem,
therefore this expression will always be evaluated to true:
if (input->users || usbtouch->type->irq_always)
result = usb_submit_urb(usbtouch->irq, GFP_NOIO);
The same URB will then be fail when resubmitted in usbtouch_open().
Introduce usbtouch->is_open to keep track of the state instead.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
usb_autopm_get_interface() that is called in usbtouch_open() does an
autoresume if the device is suspended.
input_dev->mutex used in usbtouch_resume() is in this case already
taken by the input subsystem and will cause a deadlock.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The blackfin architecture is getting removed, so this
one is obsolete as well.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Aaron Wu <aaron.wu@analog.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The blackfin architecture is getting removed, so this
driver is now obsolete.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A lot of Kconfig symbols have architecture specific dependencies.
In those cases that depend on architectures we have already removed,
they can be omitted.
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
If the device is unused and suspended, a call to open will cause the
device to autoresume through the call to usb_autopm_get_interface().
input_dev->users is already incremented by the input subsystem,
therefore this expression will always be evaluated to true:
if (pegasus->dev->users && usb_submit_urb(pegasus->irq, GFP_NOIO) < 0)
retval = -EIO;
The same URB will then be fail when resubmitted in pegasus_open().
Introduce pegasus->is_open to keep track of the state instead.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
usb_autopm_get_interface() that is called in pegasus_open() does an
autoresume if the device is suspended.
input_dev->mutex used in pegasus_resume() is in this case already
taken by the input subsystem and will cause a deadlock.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If the device is unused and suspended, a call to open will cause the
device to autoresume through the call to usb_autopm_get_interface().
input_dev->users is already incremented by the input subsystem,
therefore this expression will always be evaluated to true:
if ((input_dev->users || (synusb->flags & SYNUSB_IO_ALWAYS)) &&
usb_submit_urb(synusb->urb, GFP_NOIO) < 0) {
retval = -EIO;
}
The same URB will then be fail when resubmitted in synusb_open().
Introduce synusb->is_open to keep track of the state instead.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
usb_autopm_get_interface() that is called in synusb_open() does an
autoresume if the device is suspended.
input_dev->mutex used in synusb_resume() is in this case already
taken by the input subsystem and will cause a deadlock.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support for specifying event actions to trigger wakeup when using
the gpio-keys input device as a wakeup source.
This would allow the device to configure when to wakeup the system. For
example a gpio-keys input device for pen insert, may only want to wakeup
the system when ejecting the pen.
Suggested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Assign true or false to boolean variables instead of an integer value.
This issue was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit add ACPI support for Chuwi Hi8 tablet. On the ACPI table of
the tablet, GSL1680 is registered as MSSL0001, so the driver does not
recognize the device. This commit resolve it.
Signed-off-by: Shohei Maruyama <cheat.sc.linux@outlook.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The analog joystick driver spits a warning at us:
drivers/input/joystick/analog.c:176:2: warning: #warning Precise timer
not defined for this architecture.
PPC has get_cycles() so use that.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Now that the MONOTONIC and BOOTTIME clocks are indentical, remove all the
special casing.
The user space visible interfaces still support both clocks, but their behavior
is identical.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kevin Easton <kevin@guarana.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-input@vger.kernel.org
Link: http://lkml.kernel.org/r/20180301165150.155899327@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
In preparation to enabling -Wvla, remove VLA and replace it with a
fixed-length array instead.
Fixed as part of the directive to remove all VLAs from the kernel:
https://lkml.org/lkml/2018/3/7/621
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reset i8042 before probing because of insufficient BIOS initialisation of
the i8042 serial controller. This makes Synaptics touchpad detection
possible. Without resetting the Synaptics touchpad is not detected because
there are always NACK messages from AUX port.
Signed-off-by: Dennis Wassenberg <dennis.wassenberg@secunet.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.16-rc4' into next
Sync up with mainline to bring in RAVE MFD device core.
Pull input fixes from Dmitry Torokhov:
- we are reverting patch that was switched touchpad on Lenovo T460P
over to native RMI because on these boxes BIOS messes up with SMBus
controller state. We might re-enable it later once SMBus issue is
resolved
- disabling interrupts in matrix_keypad driver was racy
- mms114 now has SPDX header and matching MODULE_LICENSE
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Revert "Input: synaptics - Lenovo Thinkpad T460p devices should use RMI"
Input: matrix_keypad - fix race when disabling interrupts
Input: mms114 - add SPDX identifier
Input: mms114 - fix license module information
This reverts commit 4828296982 which
caused the following issues:
1. On T460p with BIOS version 2.22 touchpad and trackpoint stop working
after suspend-resume cycle. Due to strange state of the device another
suspend is impossible.
The following dmesg errors can be observed:
thinkpad_acpi: EC reports that Thermal Table has changed
rmi4_smbus 7-002c: failed to get SMBus version number!
rmi4_physical rmi4-00: rmi_driver_reset_handler: Failed to read current IRQ mask.
rmi4_f01 rmi4-00.fn01: Failed to restore normal operation: -16.
rmi4_f01 rmi4-00.fn01: Resume failed with code -16.
rmi4_physical rmi4-00: Failed to suspend functions: -16
rmi4_smbus 7-002c: Failed to resume device: -16
PM: resume devices took 0.640 seconds
rmi4_f03 rmi4-00.fn03: rmi_f03_pt_write: Failed to write to F03 TX register (-16).
rmi4_physical rmi4-00: rmi_driver_clear_irq_bits: Failed to change enabled interrupts!
rmi4_physical rmi4-00: rmi_driver_set_irq_bits: Failed to change enabled interrupts!
psmouse: probe of serio3 failed with error -1
2. On another T460p with BIOS version 2.15 two finger scrolling gesture
on the touchpad stops working after suspend-resume cycle (about 75%
reproducibility, when it still works, the scrolling gesture becomes
laggy). Nothing suspicious appears in the dmesg.
Analysis form Richard Schütz:
"RMI is unreliable on the ThinkPad T460p because the device is affected
by the firmware behavior addressed in a7ae81952c ("i2c: i801: Allow
ACPI SystemIO OpRegion to conflict with PCI BAR")."
The affected devices often show:
i801_smbus 0000:00:1f.4: BIOS is accessing SMBus registers
i801_smbus 0000:00:1f.4: Driver SMBus register access inhibited
Reported-by: Richard Schütz <rschuetz@uni-koblenz.de>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Tested-by: Martin Peres <martin.peres@linux.intel.com>
Tested-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch registers four standard control handlers using the corresponding
V4L2 framework.
Signed-off-by: Florian Echtler <floe@butterbrot.org>
[hans.verkuil@cisco.com: lower-cased 0x0F and 0xF0]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
These functions provide write access to the internal LCD panel registers
which also control the sensor. They can be used to disable the
preprocessor, set the illumination brightness, and adjust gain/contrast
(which are stored together in one register internally called "vsvideo").
Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This patch adds parameter definitions and module parameters for the four
userspace controls that the SUR40 can currently provide.
Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The SUR40 can recognize specific printed patterns directly in hardware;
this information (i.e. the pattern id) is present but currently unused
in the blob structure.
Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:
for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
done
with de-mangling cleanups yet to come.
NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do. But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.
The next patch from Al will sort out the final differences, and we
should be all done.
Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If matrix_keypad_stop() is executing and the keypad interrupt is triggered,
disable_row_irqs() may be called by both matrix_keypad_interrupt() and
matrix_keypad_stop() at the same time, causing interrupts to be disabled
twice and the keypad being "stuck" after resuming.
Take lock when setting keypad->stopped to ensure that ISR will not race
with matrix_keypad_stop() disabling interrupts.
Signed-off-by: Zhang Bo <zbsdta@126.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We do not need to call ps2_command() several times in a row, transmitting
every byte as it were a command byte, we can often pack it all in a single
command.
Also, now that ps2_command() handles retransmission, we do not need to do
it ourselves in trackpoint_power_on_reset().
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When we probe PS/2 devices we first issue "Get ID" command and only if we
receive what we consider a valid keyboard or mouse ID we disable the device
and continue with protocol detection. That means that the device may be
transmitting motion or keystroke data, while we expect ACK response.
Instead of signaling failure if we see anything but ACK/NAK let's ignore
"garbage" response until we see ACK for the command byte (first byte). The
checks for subsequent ACKs of command parameters will continue be strict.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The devices are allowed to respond to either command byte or command
parameter with a NAK (0xfe), and the host is supposed to resend the
"correct" byte. The device then will either respond with ACK or ERR (0xfc).
Let's teach libps2 to handle the NAK responses properly, so that individual
drivers do not need to handle them.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Debugging via i8042.debug and analyzing raw PS/2 data stream may be
cumbersome as you need to locate the boundaries of commands, decipher the
sliced commands, etc, etc. Let's add a bit more high level debug statements
for ps2_sendbyte(), ps2_command(), and ps2_sliced_command().
We do not introduce a new module parameter, but rater rely on the kernel
having dynamic debug facility enabled (which most everyone has nowadays).
Enable with:
echo "file libps2.c +pf" > /sys/kernel/debug/dynamic_debug/control
or add "libps2.dyndbg=+pf" to the kernel command line.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation to adding some debugging statements to PS/2 control
sequences let's move psmouse_sliced_command() into libps2 and rename it
to ps2_sliced_command().
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of using unsigned char for the byte data switch to using u8. Also
use unsigned int for the command codes and timeouts, and have
ps2_handle_ack() and ps2_handle_response() return bool instead of int, as
they do not return error codes but rather signal whether a byte was handled
or not handled. ps2_is_keyboard_id() now returns bool as well.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Individual labels of switch statements should have the same indentation
level as the switch statement itself.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This Far-Eastern company's PS/2 mice use a deviant format for the data
relating to movement of the scroll wheels for, at least, their dual wheel
mice, such as their "Optical GreatEye Wheelmouse" model "WOP-35". This
product has five "buttons" (one of which is the click action on the first
wheel) and TWO scroll wheels. However for a byte comprising d0-d7 instead
of setting one of d6-7 in the forth byte of the mouse data packet and a
twos complement number of scroll steps in the remaining d5-d0 (or d3-d0
should there be a fourth (BTN_SIDE - d4) or fifth (BTN_EXTRA - d5) button
to report; they only report a single +/- event for each wheel and use a bit
pattern that corresponds to +/-1 for the first wheel and +/- 2 for the
second in the lower nibble of the fourth byte.
The effect with existing code is that the second mouse wheel merely repeats
the effect of the first but providing two steps per click rather than the
one of the first wheel - so there is no HORIZONTAL scroll wheel movement
detected from the device as far as the rest of the kernel sees it.
This patch, if enabled by the "a4tech_workaround" module parameter modifies
the handling just for mice of type PSMOUSE_IMEX so that the second scroll
wheel movement gets correctly reported as REL_HWHEEL events. Should this
module parameter be activated for other mice of the same PSMOUSE_IMEX type
then it is possible that at the point where the mouse reports more than a
single movement step the user may start seeing horizontal rather than
vertical wheel events, but should the movement steps get to be more than
two at a time the hack will get immediately deactivated and the behaviour
will revert to the past code.
This was discussed around *fifteen* *years* *ago* on the LKML and the best
summary is in post https://lkml.org/lkml/2002/7/18/111 "Re: PS2 Input Core
Support" by Vojtech Pavlik. I was not able to locate any discussion later
than this on this topic.
Given that most users of the "psmouse" module will NOT want this additional
feature enabled I have taken the apparently erroneous step of defaulting
the module parameter that enables it to be "disabled" - this functionality
may interfere with the operation of "normal" mice of this type (until a
large enough scroll wheel movement is detected) so I cannot see how it
would want to be enabled for "normal" users - i.e. everyone without this
brand of mouse.
I am using this patch at the moment and I can confirm that it is working
for me as both a module and compiled into the kernel for my mouse that is
of the type (WOP-35) described - I note that it is still available from
certain on-line retailers and that the manufacturers site does not list
GNU/Linux as being supported on the product page - this patch however does
enable full use of this product:
http://www.a4tech.com/product.asp?cid=3D1&scid=3D8&id=3D22
Signed-off-by: Stephen Lyons <slysven@virginmedia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- use u8 instead of unsigned char for byte data
- use input_set_capability() instead of manipulating capabilities bits
directly
- do not abuse -1 as error code, propagate errors from various calls.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- switch to using BIT() macros
- use u8 instead of unsigned char for byte data
- use input_set_capability() instead of manipulating capabilities bits
directly
- use sign_extend32() when extracting wheel data.
- do not abuse -1 as error code, propagate errors from various calls.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- switch to using BIT() macros
- use u8 instead of unsigned char for byte data
- use input_set_capability() instead of manipulating capabilities bits
directly
- use sign_extend32() when extracting wheel data.
- do not abuse -1 as error code, propagate errors from various calls.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Many protocol driver re-implement code to parse buttons or motion data from
the standard PS/2 protocol. Let's split the parsing into separate
functions and reuse them in protocol drivers.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Replace the original license statement with the SPDX identifier.
Add also one line of description as recommended by the COPYING
file.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The driver has been released with GNU Public License v2 as stated
in the header, but the module license information has been tagged
as "GPL" (GNU Public License v2 or later).
Fix the module license information so that it matches the one in
the header as "GPL v2".
Fixes: 07b8481d4a ("Input: add MELFAS mms114 touchscreen driver")
Reported-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input layer updates from Dmitry Torokhov:
- evdev interface has been adjusted to extend the life of timestamps on
32 bit systems to the year of 2108
- Synaptics RMI4 driver's PS/2 guest handling ha beed updated to
improve chances of detecting trackpoints on the pass-through port
- mms114 touchcsreen controller driver has been updated to support
generic device properties and work with mms152 cntrollers
- Goodix driver now supports generic touchscreen properties
- couple of drivers for AVR32 architecture are gone as the architecture
support has been removed from the kernel
- gpio-tilt driver has been removed as there are no mainline users and
the driver itself is using legacy APIs and relies on platform data
- MODULE_LINECSE/MODULE_VERSION cleanups
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (45 commits)
Input: goodix - use generic touchscreen_properties
Input: mms114 - fix typo in definition
Input: mms114 - use BIT() macro instead of explicit shifting
Input: mms114 - replace mdelay with msleep
Input: mms114 - add support for mms152
Input: mms114 - drop platform data and use generic APIs
Input: mms114 - mark as direct input device
Input: mms114 - do not clobber interrupt trigger
Input: edt-ft5x06 - fix error handling for factory mode on non-M06
Input: stmfts - set IRQ_NOAUTOEN to the irq flag
Input: auo-pixcir-ts - delete an unnecessary return statement
Input: auo-pixcir-ts - remove custom log for a failed memory allocation
Input: da9052_tsi - remove unused mutex
Input: docs - use PROPERTY_ENTRY_U32() directly
Input: synaptics-rmi4 - log when we create a guest serio port
Input: synaptics-rmi4 - unmask F03 interrupts when port is opened
Input: synaptics-rmi4 - do not delete interrupt memory too early
Input: ad7877 - use managed resource allocations
Input: stmfts,s6sy671 - add SPDX identifier
Input: remove atmel-wm97xx touchscreen driver
...
Here is the set of "big" driver core patches for 4.16-rc1.
The majority of the work here is in the firmware subsystem, with reworks
to try to attempt to make the code easier to handle in the long run, but
no functional change. There's also some tree-wide sysfs attribute
fixups with lots of acks from the various subsystem maintainers, as well
as a handful of other normal fixes and changes.
And finally, some license cleanups for the driver core and sysfs code.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the set of "big" driver core patches for 4.16-rc1.
The majority of the work here is in the firmware subsystem, with
reworks to try to attempt to make the code easier to handle in the
long run, but no functional change. There's also some tree-wide sysfs
attribute fixups with lots of acks from the various subsystem
maintainers, as well as a handful of other normal fixes and changes.
And finally, some license cleanups for the driver core and sysfs code.
All have been in linux-next for a while with no reported issues"
* tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (48 commits)
device property: Define type of PROPERTY_ENRTY_*() macros
device property: Reuse property_entry_free_data()
device property: Move property_entry_free_data() upper
firmware: Fix up docs referring to FIRMWARE_IN_KERNEL
firmware: Drop FIRMWARE_IN_KERNEL Kconfig option
USB: serial: keyspan: Drop firmware Kconfig options
sysfs: remove DEBUG defines
sysfs: use SPDX identifiers
drivers: base: add coredump driver ops
sysfs: add attribute specification for /sysfs/devices/.../coredump
test_firmware: fix missing unlock on error in config_num_requests_store()
test_firmware: make local symbol test_fw_config static
sysfs: turn WARN() into pr_warn()
firmware: Fix a typo in fallback-mechanisms.rst
treewide: Use DEVICE_ATTR_WO
treewide: Use DEVICE_ATTR_RO
treewide: Use DEVICE_ATTR_RW
sysfs.h: Use octal permissions
component: add debugfs support
bus: simple-pm-bus: convert bool SIMPLE_PM_BUS to tristate
...
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Merge tag 'v4.15' into next
Sync with mainline to get in trackpoint updates and other changes.
Use touchscreen_properties structure instead of implementing all
properties by our own. It allows us to reuse generic code for parsing
device-tree properties (which was implemented manually in the driver for
now). Additionally, it allows us to report events using generic
touchscreen_report_pos(), which automatically handles inverted and
swapped axes.
This fixes the issue with the custom code incorrectly handling case where
ts->inverted_x and ts->swapped_x_y were true, but ts->inverted_y was
false. Assuming we have 720x1280 touch panel, ts->abs_x_max == 1279 and
ts->abs_y_max == 719 (because we inverted that in goodix_read_config()).
Now let's assume that we received event from (0:0) position (in touch
panel original coordinates). In function goodix_ts_report_touch() we
calculate input_x as 1279, but after swapping input_y takes that value
(which is more that maximum 719 value reported during initialization).
Note that since touchscreen coordinates are 0-indexed, we now report
touchscreen range as (0:size-1).
Developed and tested on custom DT-based device with gt1151 touch
panel.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
[dtor: fix endianness annotation reported by sparse, handle errors when
initializing MT slots]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull poll annotations from Al Viro:
"This introduces a __bitwise type for POLL### bitmap, and propagates
the annotations through the tree. Most of that stuff is as simple as
'make ->poll() instances return __poll_t and do the same to local
variables used to hold the future return value'.
Some of the obvious brainos found in process are fixed (e.g. POLLIN
misspelled as POLL_IN). At that point the amount of sparse warnings is
low and most of them are for genuine bugs - e.g. ->poll() instance
deciding to return -EINVAL instead of a bitmap. I hadn't touched those
in this series - it's large enough as it is.
Another problem it has caught was eventpoll() ABI mess; select.c and
eventpoll.c assumed that corresponding POLL### and EPOLL### were
equal. That's true for some, but not all of them - EPOLL### are
arch-independent, but POLL### are not.
The last commit in this series separates userland POLL### values from
the (now arch-independent) kernel-side ones, converting between them
in the few places where they are copied to/from userland. AFAICS, this
is the least disruptive fix preserving poll(2) ABI and making epoll()
work on all architectures.
As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and
it will trigger only on what would've triggered EPOLLWRBAND on other
architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered
at all on sparc. With this patch they should work consistently on all
architectures"
* 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
make kernel-side POLL... arch-independent
eventpoll: no need to mask the result of epi_item_poll() again
eventpoll: constify struct epoll_event pointers
debugging printk in sg_poll() uses %x to print POLL... bitmap
annotate poll(2) guts
9p: untangle ->poll() mess
->si_band gets POLL... bitmap stored into a user-visible long field
ring_buffer_poll_wait() return value used as return value of ->poll()
the rest of drivers/*: annotate ->poll() instances
media: annotate ->poll() instances
fs: annotate ->poll() instances
ipc, kernel, mm: annotate ->poll() instances
net: annotate ->poll() instances
apparmor: annotate ->poll() instances
tomoyo: annotate ->poll() instances
sound: annotate ->poll() instances
acpi: annotate ->poll() instances
crypto: annotate ->poll() instances
block: annotate ->poll() instances
x86: annotate ->poll() instances
...
200 milliseconds is a very long time to keep the CPU busy looping.
Use msleep instead.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
MMS152 has no configuration registers, but the packet format used in
interrupts is identical to mms114.
Signed-off-by: Simon Shields <simon@lineageos.org>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Tested-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The MMS114 platform data has no in-tree users, so drop it.
Switch to using the standard touchscreen properties via
touchscreen_parse_properties(), and move the old DT parsing code
to use device_property_*() APIs.
Finally, use touchscreen_report_pos to report x/y coordinates
and drop the custom x/y inversion code.
Signed-off-by: Simon Shields <simon@lineageos.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Tested-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
mms14 is a touchscreen and thus a direct input device; let's mark it
as such. This also allows us to drop some initialization code as
input_init_mt_slots() will do that for us.
Also add error handling for input_mt_init_slots().
Reviewed-by: Simon Shields <simon@lineageos.org>
Tested-by: Simon Shields <simon@lineageos.org>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Tested-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
"The main item is that we try to better handle the newer trackpoints on
Lenovo devices that are now being produced by Elan/ALPS/NXP and only
implement a small subset of the original IBM trackpoint controls"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Revert "Input: synaptics_rmi4 - use devm_device_add_group() for attributes in F01"
Input: trackpoint - only expose supported controls for Elan, ALPS and NXP
Input: trackpoint - force 3 buttons if 0 button is reported
Input: xpad - add support for PDP Xbox One controllers
Input: stmfts,s6sy671 - add SPDX identifier
Since the sysfs attribute hangs off the RMI bus, which doesn't go away during
firmware flash, it needs to be explicitly removed, otherwise we would try and
register the same attribute twice.
This reverts commit 36a44af5c1.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When attempting enter factory mode on firmware that does not support it,
we'd error out, but leave the device with interrupts disabled, and thus
touch not working. Fix it by moving the check before we disable
interrupts/allocate memory for debug buffers.
Fixes: fd335ab04b ("Input: edt-ft5x06 - add support for M09 firmware version")
Reviewed-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The interrupt is requested before the device is powered on and
it's value in some cases cannot be reliable. It happens on some
devices that an interrupt is generated as soon as requested
before having the chance to disable the irq.
Set the irq flag as IRQ_NOAUTOEN before requesting it.
This patch mutes the error:
stmfts 2-0049: failed to read events: -11
received sometimes during boot time.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The script "checkpatch.pl" pointed information out like the following:
WARNING: void function return statements are not generally useful
Thus remove such a statement in the affected function.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To ease analyzing boot behavior from logs, let's log when we are about to
register the pass-through serio port.
Also, let's drop "Synaptics" prefix from the port name, as RMI4 is good
enough indicator already, and having the prefix means that the name does
not fit into serio->name field. While at it move from hard-coded seio->phys
to one mentioning the sensor ID (such as "rmi4-00.fn03/serio0").
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Currently we register the pass-through serio port when we probe the F03 RMI
function, and then, in sensor configure phase, we unmask interrupts.
Unfortunately this is too late, as other drivers are free probe devices
attached to the serio port as soon as it is probed. Because interrupts are
masked, the IO times out, which may result in not being able to detect
trackpoints on the pass-through port.
To fix the issue we implement open() and close() methods for the
pass-through serio port and unmask interrupts from there. We also move
creation of the pass-through port form probe to configure stage, as RMI
driver does not enable transport interrupt until all functions are probed
(we should change this, but this is a separate topic).
We also try to clear the pending data before unmasking interrupts, because
some devices like to spam the system with multiple 0xaa 0x00 announcements,
which may interfere with us trying to query ID of the device.
Fixes: c5e8848fc9 ("Input: synaptics-rmi4 - add support for F03")
Cc: stable@vger.kernel.org
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We want to free memory reserved for interrupt mask handling only after we
free functions, as function drivers might want to mask interrupts. This is
needed for the followup patch to the F03 that would implement unmasking and
masking interrupts from the serio pass-through port open() and close()
methods.
Cc: stable@vger.kernel.org
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use managed resource allocations to simplify error handling during
probing failure and module exiting.
With this all the goto labels in the probe function together with
the cleanups in the remove function are unnecessary, therefore
removed.
Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Replace the original license statement with the SPDX identifier.
Update also the copyright owner adding myself as co-owner of the
copyright.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The newer trackpoints from ALPS, Elan and NXP implement a very limited
subset of extended commands and controls that the original trackpoints
implemented, so we should not be exposing not working controls in sysfs.
The newer trackpoints also do not implement "Power On Reset" or "Read
Extended Button Status", so we should not be using these commands during
initialization.
While we are at it, let's change "unsigned char" to u8 for byte data or
bool for booleans and use better suited error codes instead of -1.
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Lenovo introduced trackpoint compatible sticks with minimum PS/2 commands.
They supposed to reply with 0x02, 0x03, or 0x04 in response to the
"Read Extended ID" command, so we would know not to try certain extended
commands. Unfortunately even some trackpoints reporting the original IBM
version (0x01 firmware 0x0e) now respond with incorrect data to the "Get
Extended Buttons" command:
thinkpad_acpi: ThinkPad BIOS R0DET87W (1.87 ), EC unknown
thinkpad_acpi: Lenovo ThinkPad E470, model 20H1004SGE
psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 0/0
Since there are no trackpoints without buttons, let's assume the trackpoint
has 3 buttons when we get 0 response to the extended buttons query.
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=196253
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Adds support for the current lineup of Xbox One controllers from PDP
(Performance Designed Products). These controllers are very picky with
their initialization sequence and require an additional 2 packets before
they send any input reports.
Signed-off-by: Mark Furneaux <mark@furneaux.ca>
Reviewed-by: Cameron Gutman <aicommander@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Replace the original license statement with the SPDX identifier.
Update also the copyright owner adding myself as co-owner of the
copyright.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
- a fix for use-after-free in Synaptics RMI4 driver
- correction to multitouch contact tracking on certain ALPS touchpads
(which got broken when we tried to fix the 2-finger scrolling)
- touchpad on Lenovo T640p is switched over to SMbus/RMI
- a few device node refcount fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics-rmi4 - prevent UAF reported by KASAN
Input: ALPS - fix multi-touch decoding on SS4 plus touchpads
Input: synaptics - Lenovo Thinkpad T460p devices should use RMI
Input: of_touchscreen - add MODULE_LICENSE
Input: 88pm860x-ts - fix child-node lookup
Input: twl6040-vibra - fix child-node lookup
Input: twl4030-vibra - fix sibling-node lookup
Since AVR32 arch is gone, atmel-wm97xx driver is useless. In theory it
could have been rewritten to work with AT91 devices, but the driver is from
the platform data era, and a bit hard coded to work on AVR32 hardware
variant of the AC97C peripheral, so let's remove it.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The variable pwr_cmd is being assigned to cyapa->suspend_power_mode
twice, once during the declaration and once after taking an
interruptible mutex lock. Remove the redundant first assignment
since the value is never read and it is outside the mutex lock.
Cleans up clang warning:
drivers/input/mouse/cyapa.c:743:5: warning: Value stored to 'pwr_cmd'
during its initialization is never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Inline macro for MODULE_LICENSE to make the license information easy to
find, eg with grep. Inline the other module-related macros at the same
time.
A simplified version of the semantic patch for the MODULE_LICENSE
case is as follows: (http://coccinelle.lip6.fr/)
// <smpl>
@s@
identifier i; expression e;
@@
@@
declarer name MODULE_LICENSE;
identifier s.i;
expression s.e;
@@
MODULE_LICENSE(
- i
+ e
);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
[dtor: added a couple of drivers missed by the script, removed a few unused
DRIVER_VERSION macros]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
MODULE_VERSION is useless for in-kernel drivers, so just remove all
usage of it in the remaining few input drivers that still used it
(input-polldev and sparse-keymap).
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
MODULE_VERSION is useless for in-kernel drivers, so just remove all
usage of it in the misc input drivers. Along with this, some
DRIVER_VERSION macros were removed as they are also pointless.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
MODULE_VERSION is useless for in-kernel drivers, so just remove all
usage of it in the touchscreen drivers. Along with this, some
DRV_VERSION macros were removed as they are also pointless.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
MODULE_VERSION is useless for in-kernel drivers, so just remove all
usage of it in the elan_i2c mouse driver. Now that this is gone, the
ELAN_DRIVER_VERSION define was also removed as it was pointless.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
MODULE_VERSION is useless for in-kernel drivers, so remove the use of it
in the pmic8xxx-keyboard driver.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
MODULE_VERSION is useless for in-kernel drivers, so just remove all
usage of it in the rmi4 drivers. Now that this is gone, the
RMI_DRIVER_VERSION macro was also removed as it was pointless.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is no need to #define the license of the driver, just put it in
the MODULE_LICENSE() line directly as a text string.
This allows tools that check that the module license matches the source
code license to work properly, as there is no need to unwind the
unneeded dereference. For some of these drivers, the #define is just a
few lines above the MODULE_LICENSE() line, which is extra pointless.
Reported-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
input_mt_init_slots() resets the ABS_X/Y fuzz to 0 and expects the driver
to call input_mt_report_pointer_emulation(). That is based on the MT
position bits which are already defuzzed - hence a fuzz of 0.
In the case of synaptics semi-mt devices, we report the ABS_X/Y axes
manually. This results in the MT position being defuzzed but the
single-touch emulation missing that defuzzing.
Work around this by re-initializing the ABS_X/Y axes after the MT axis to
get the same fuzz value back.
https://bugs.freedesktop.org/show_bug.cgi?id=104533
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When Synaptics protocol is disabled, we still need to try and detect the
hardware, so we can switch to SMBus device if SMbus is detected, or we know
that it is Synaptics device and reset it properly for the bare PS/2
protocol.
Fixes: c378b5119e ("Input: psmouse - factor out common protocol probing code")
Reported-by: Matteo Croce <mcroce@redhat.com>
Tested-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We should not try to do any i2c transfers before the controller is
resumed (which happens before our resume method gets called).
So we need to disable our IRQ while suspended to enforce this. The
code paths for devices with GPIOs for the int and reset pins already
disable the IRQ the through goodix_free_irq().
This commit also disables the IRQ while suspended for devices without
GPIOs for the int and reset pins.
This fixes the i2c bus sometimes getting stuck after a suspend/resume
causing the touchscreen to sometimes not work after a suspend/resume.
This has been tested on a GPD pocked device.
BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10
BugLink: https://www.reddit.com/r/GPDPocket/comments/7niut2/fix_for_broken_touch_after_resume_all_linux/
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The fix for handling two-finger scroll (i4a646580f793 - "Input: ALPS -
fix two-finger scroll breakage in right side on ALPS touchpad")
introduced a minor "typo" that broke decoding of multi-touch events are
decoded on some ALPS touchpads. For example, tapping with three-fingers
can no longer be used to emulate middle-mouse-button (the kernel doesn't
recognize this as the proper event, and doesn't report it correctly to
userspace). This affects touchpads that use SS4 "plus" protocol
variant, like those found on Dell E7270 & E7470 laptops (tested on
E7270).
First, probably the code in alps_decode_ss4_v2() for case
SS4_PACKET_ID_MULTI used inconsistent indices to "f->mt[]". You can see
0 & 1 are used for the "if" part but 2 & 3 are used for the "else" part.
Second, in the previous patch, new macros were introduced to decode X
coordinates specific to the SS4 "plus" variant, but the macro to
define the maximum X value wasn't changed accordingly. The macros to
decode X values for "plus" variant are effectively shifted right by 1
bit, but the max wasn't shifted too. This causes the driver to
incorrectly handle "no data" cases, which also interfered with how
multi-touch was handled.
Fixes: 4a646580f7 ("Input: ALPS - fix two-finger scroll breakage...")
Signed-off-by: Nir Perry <nirperry@gmail.com>
Reviewed-by: Masaki Ota <masaki.ota@jp.alps.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The tpouchpad/trackpoint on Lenovo Thinkpad T460p work with smbus/RMI.
Signed-off-by: Zhenjie Wang <zhenjie.wang@sjtu.edu.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The lack of the MODULE_LICENSE tag can lead to a warning here:
WARNING: modpost: missing MODULE_LICENSE() in drivers/input/touchscreen/of_touchscreen.o
I'm adding a license and description tag, but no MODULE_AUTHOR()
as this file is a collection of standalone helper functions that
were all added by different developers.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The input events use struct timeval to store event time, unfortunately
this structure is not y2038 safe and is being replaced in kernel with
y2038 safe structures.
Because of ABI concerns we can not change the size or the layout of
structure input_event, so we opt to re-interpreting the 'seconds' part
of timestamp as an unsigned value, effectively doubling the range of
values, to year 2106.
Newer glibc that has support for 32 bit applications to use 64 bit
time_t supplies __USE_TIME_BITS64 define [1], that we can use to present
the userspace with updated input_event layout. The updated layout will
cause the compile time breakage, alerting applications and distributions
maintainers to the issue. Existing 32 binaries will continue working
without any changes until 2038.
Ultimately userspace applications should switch to using monotonic or
boot time clocks, as realtime clock is not very well suited for input
event timestamps as it can go backwards (see a80b83b7b8 "Input: evdev -
add CLOCK_BOOTTIME support" by by John Stultz). With monotonic clock the
practical range of reported times will always fit into the pair of 32
bit values, as we do not expect any system to stay up for a hundred
years without a single reboot.
[1] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Patchwork-Id: 10148083
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On some x86 tablets with a silead touchscreen the windows logo on the
front is a capacitive home button. Touching this button results in a touch
with bits 12-15 of the Y coordinates set, while normally only the lower 12
are used.
Detect this and report a KEY_LEFTMETA press when this happens. Note for
now we only respond to the Y coordinate bits 12-15 containing 0x01, on some
tablets *without* a capacative button I've noticed these bits containing
0x04 when crossing the edges of the screen.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fix child node-lookup during probe, which ended up searching the whole
device tree depth-first starting at parent rather than just matching on
its children.
To make things worse, the parent node was prematurely freed, while the
child node was leaked.
Fixes: 2e57d56747 ("mfd: 88pm860x: Device tree support")
Cc: stable <stable@vger.kernel.org> # 3.7
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fix child-node lookup during probe, which ended up searching the whole
device tree depth-first starting at parent rather than just matching on
its children.
Later sanity checks on node properties (which would likely be missing)
should prevent this from causing much trouble however, especially as the
original premature free of the parent node has already been fixed
separately (but that "fix" was apparently never backported to stable).
Fixes: e7ec014a47 ("Input: twl6040-vibra - update for device tree support")
Fixes: c52c545ead ("Input: twl6040-vibra - fix DT node memory management")
Cc: stable <stable@vger.kernel.org> # 3.6
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com> (on Pyra OMAP5 hardware)
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
A helper purported to look up a child node based on its name was using
the wrong of-helper and ended up prematurely freeing the parent of-node
while searching the whole device tree depth-first starting at the parent
node.
Fixes: 64b9e4d803 ("input: twl4030-vibra: Support for DT booted kernel")
Fixes: e661d0a044 ("Input: twl4030-vibra - fix ERROR: Bad of_node_put() warning")
Cc: stable <stable@vger.kernel.org> # 3.7
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
"Just a few driver fixups, nothing exciting"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xen-kbdfront - do not advertise multi-touch pressure support
Input: hideep - fix compile error due to missing include file
Input: elants_i2c - do not clobber interrupt trigger on x86
Input: joystick/analog - riscv has get_cycles()
Input: elantech - add new icbody type 15
Input: ims-pcu - fix typo in the error message
This duplicate include has been found with scripts/checkincludes.pl but
it has been removed manually to avoid removing false positives.
Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com>
Patchwork-Id: 10092051
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add hardware version to the firmware file name to handle scenarios where
single system image supports variety of devices.
Signed-off-by: Jeffrey Lin <jeffrey.lin@rad-ic.com>
Patchwork-Id: 10127677
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some user-space applications expect multi-touch pressure
on contact to be reported if it is advertised in device
properties. Otherwise, such applications may treat reports
not as actual touches, but hovering. Currently this is
only advertised, but not reported.
Fix this by not advertising that ABS_MT_PRESSURE is supported.
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Andrii Chepurnyi <andrii_chepurnyi@epam.com>
Patchwork-Id: 10140017
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This driver was merged in 2011 as a tool for detecting the orientation
of a screen. The device driver assumes board file setup using the
platform data from <linux/input/gpio_tilt.h>. But no boards in the
kernel tree defines this platform data.
As I am faced with refactoring drivers to use GPIO descriptors and
pass decriptor tables from boards, or use the device tree device
drivers like these creates a serious problem: I cannot fix them and
cannot test them, not even compile-test them with a system actually
using it (no in-tree boardfile).
I suggest to delete this driver and rewrite it using device tree if
it is still in use on actively maintained systems.
I can also offer to rewrite it out of the blue using device tree if
someone promise to test it and help me iterate it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Patchwork-Id: 10133609
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
struct timeval which is part of struct input_event to maintain the event
times is not y2038 safe.
Real time timestamps are also not ideal for input_event as this time can go
backwards as noted in the patch a80b83b7b8 by John Stultz.
The patch switches the timestamps to use monotonic time from realtime time.
This is assuming no one is using absolute times from these timestamps.
The structure to maintain input events will be changed in a different
patch.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Patchwork-Id: 10118255
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This gets rid of the deprecated do_gettimeofday() call in favor
of ktime_get(), which is also more reliable as it uses monotonic
times. The code now gets a bit simpler.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Patchwork-Id: 10076621
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
struct timeval is not y2038 safe, and what mlc->instart do is
scheduling a task in a fixed timeout, so jiffies is the
simplest choice here.
In hilse_donode(), the expires in mod_timer equals
jiffies + intimeout - (now - instart)
If we use jiffies in 'now', the expires equals
instart + intimeout
So, all we need to do is that making sure expires is a future
timestamp before passed it to mod_timer.
[arnd: slightly simplified patch further]
Link: https://lists.linaro.org/pipermail/y2038/2015-October/000937.html
Signed-off-by: WEN Pingbo <pingbo.wen@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Patchwork-Id: 10076615
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Since mlc->lcv_t is only interested in seconds, directly using time64_t
here.
This gets rid of the deprecated do_gettimeofday() and avoids problems
with time going backwards since we now use the monotonic clocksource.
Signed-off-by: WEN Pingbo <pingbo.wen@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Patchwork-Id: 10076611
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
gpiod_() API requires including "linux/gpio/consumer.h". Also, we are not
using the legacy API nor the static board files descriptions, so no need to
include gpio.h nor gpio/machine.h.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Anthony Kim <anthony.kim@hideep.com>
Patchwork-Id: 10094831
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is similar to commit a4b0a58bb1 ("Input: elan_i2c - do not
clobber interrupt trigger on x86")
On x86 we historically used falling edge interrupts in the driver
because that's how first Chrome devices were configured. They also
did not use ACPI to enumerate I2C devices (because back then there
was no kernel support for that), so trigger was hard-coded in the
driver. However the controller behavior is much more reliable if
we use level triggers, and that is how we configured ARM devices,
and how want to configure newer x86 devices as well. All newer
x86 boxes have their I2C devices enumerated in ACPI.
Let's see if platform code (ACPI, DT) described interrupt and
specified particular trigger type, and if so, let's use it instead
of always clobbering trigger with IRQF_TRIGGER_FALLING. We will
still use this trigger type as a fallback if platform code left
interrupt trigger unconfigured.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixes:
drivers/input/joystick/analog.c:176:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The touchpad of Lenovo Thinkpad L480 reports it's version as 15.
Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
1. change "to" to "too".
2. move ")" to the front of "\n", which discovered by Joe Perches.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Joe Perches <joe@perches.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
With all callbacks converted, and the timer callback prototype
switched over, the TIMER_FUNC_TYPE cast is no longer needed,
so remove it. Conversion was done with the following scripts:
perl -pi -e 's|\(TIMER_FUNC_TYPE\)||g' \
$(git grep TIMER_FUNC_TYPE | cut -d: -f1 | sort -u)
perl -pi -e 's|\(TIMER_DATA_TYPE\)||g' \
$(git grep TIMER_DATA_TYPE | cut -d: -f1 | sort -u)
The now unused macros are also dropped from include/linux/timer.h.
Signed-off-by: Kees Cook <keescook@chromium.org>
This changes all DEFINE_TIMER() callbacks to use a struct timer_list
pointer instead of unsigned long. Since the data argument has already been
removed, none of these callbacks are using their argument currently, so
this renames the argument to "unused".
Done using the following semantic patch:
@match_define_timer@
declarer name DEFINE_TIMER;
identifier _timer, _callback;
@@
DEFINE_TIMER(_timer, _callback);
@change_callback depends on match_define_timer@
identifier match_define_timer._callback;
type _origtype;
identifier _origarg;
@@
void
-_callback(_origtype _origarg)
+_callback(struct timer_list *unused)
{ ... }
Signed-off-by: Kees Cook <keescook@chromium.org>
Pull input updates from Dmitry Torokhov:
- three new touchscreen drivers: EETI EXC3000, HiDeep, and Samsung
S6SY761
- the timer API conversion (setup_timer() -> timer_setup())
- a few drivers swiytched to using managed API for creating custom
device attributes
- other assorted fixed and cleanups.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (50 commits)
Input: gamecon - mark expected switch fall-throughs
Input: sidewinder - mark expected switch fall-throughs
Input: spaceball - mark expected switch fall-throughs
Input: uinput - unlock on allocation failure in ioctl
Input: add support for the Samsung S6SY761 touchscreen
Input: add support for HiDeep touchscreen
Input: st1232 - remove obsolete platform device support
Input: convert autorepeat timer to use timer_setup()
media: ttpci: remove autorepeat handling and use timer_setup
Input: cyttsp4 - avoid overflows when calculating memory sizes
Input: mxs-lradc - remove redundant assignment to pointer input
Input: add I2C attached EETI EXC3000 multi touch driver
Input: goodix - support gt1151 touchpanel
Input: ps2-gpio - actually abort probe when connected to sleeping GPIOs
Input: hil_mlc - convert to using timer_setup()
Input: hp_sdc - convert to using timer_setup()
Input: touchsceen - convert timers to use timer_setup()
Input: keyboard - convert timers to use timer_setup()
Input: uinput - fold header into the driver proper
Input: uinput - remove uinput_allocate_device()
...
There are no big surprising changes in this cycle, yet not too
boring, either. The biggest change from diffstat POV is the removal
of the legacy OSS driver codes that have been already disabled for a
long time. This will bring a few trivial merge conflicts.
As new features in ASoC side, there are two things: a new AC97 bus
implementation and AMD Stony platform support. Both include the
relevant changes shared with other subsystems, e.g. AC97 MFD changes
and DRM AMD changes.
Some other highlighted topics are:
- A bunch of USB-audio drivers got the hardening against the malicious
device accesses with a new helper code for endpoint sanity check.
- Lots of cleanups for ASoC Intel platform code, including support for
their open source audio firmware.
- Continued ASoC core componentization works.
- Support for scaling MCLK with sample rate in ASoC simple-card.
- Stabler PCM hot-unplug capability, especially for ASoC usages.
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Merge tag 'sound-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"There are no big surprising changes in this cycle, yet not too boring,
either. The biggest change from diffstat POV is the removal of the
legacy OSS driver codes that have been already disabled for a long
time. This will bring a few trivial merge conflicts.
As new features in ASoC side, there are two things: a new AC97 bus
implementation and AMD Stony platform support. Both include the
relevant changes shared with other subsystems, e.g. AC97 MFD changes
and DRM AMD changes.
Some other highlighted topics are:
- A bunch of USB-audio drivers got the hardening against the
malicious device accesses with a new helper code for endpoint
sanity check
- Lots of cleanups for ASoC Intel platform code, including support
for their open source audio firmware
- Continued ASoC core componentization works
- Support for scaling MCLK with sample rate in ASoC simple-card
- Stabler PCM hot-unplug capability, especially for ASoC usages"
* tag 'sound-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (302 commits)
Documentation: sound: hd-audio: notes.rst
ASoC: bcm2835: Support left/right justified and DSP modes
ASoC: bcm2835: Enforce full symmetry
ASoC: bcm2835: Support additional samplerates up to 384kHz
ASoC: bcm2835: Add support for TDM modes
ASoC: add mclk-fs support to audio graph card
ASoC: add mclk-fs to audio graph card binding
ASoC: rt5514: work around link error
ASoC: rt5514: mark PM functions as __maybe_unused
ASoC: rt5663: Check the JD status in the button pushing
ASoC: amd: Modified DMA transfer Mechanism for Playback
ASoC: rt5645: Wait for 400msec before concluding on value of RT5645_VENDOR_ID2
ASoC: sun4i-codec: fixed 32bit audio capture support for H3/H2+
ASoC: da7213: add support for DSP modes
ASoC: sun8i-codec: Add a comment on the LRCK inversion
ASoC: sun8i-codec: Set the BCLK divider
ASoC: rt5663: Delay and retry reading rt5663 ID register
ASoC: amd: use do_div rather than 64 bit division to fix 32 bit builds
ASoC: cs42l56: Fix reset GPIO name in example DT binding
ASoC: rt5514-spi: check irq status to schedule data copy in resume function
...
Here is the "big" staging and IIO driver update for 4.15-rc1.
Lots and lots of little changes, almost all minor code cleanups as the
Outreachy application process happened during this development cycle.
Also happened was a lot of IIO driver activity, and the typec USB code
moving out of staging to drivers/usb (same commits are in the USB tree
on a persistent branch to not cause merge issues.)
Overall, it's a wash, I think we added a few hundred more lines than
removed, but really only a few thousand were modified at all.
All of these have been in linux-next for a while. There might be a
merge issue with Al's vfs tree in the pi433 driver (take his changes,
they are always better), and the media tree with some of the odd atomisp
cleanups (take the media tree's version).
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO updates from Greg KH:
"Here is the "big" staging and IIO driver update for 4.15-rc1.
Lots and lots of little changes, almost all minor code cleanups as the
Outreachy application process happened during this development cycle.
Also happened was a lot of IIO driver activity, and the typec USB code
moving out of staging to drivers/usb (same commits are in the USB tree
on a persistent branch to not cause merge issues.)
Overall, it's a wash, I think we added a few hundred more lines than
removed, but really only a few thousand were modified at all.
All of these have been in linux-next for a while. There might be a
merge issue with Al's vfs tree in the pi433 driver (take his changes,
they are always better), and the media tree with some of the odd
atomisp cleanups (take the media tree's version)"
* tag 'staging-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (507 commits)
staging: lustre: add SPDX identifiers to all lustre files
staging: greybus: Remove redundant license text
staging: greybus: add SPDX identifiers to all greybus driver files
staging: ccree: simplify ioread/iowrite
staging: ccree: simplify registers access
staging: ccree: simplify error handling logic
staging: ccree: remove dead code
staging: ccree: handle limiting of DMA masks
staging: ccree: copy IV to DMAable memory
staging: fbtft: remove redundant initialization of buf
staging: sm750fb: Fix parameter mistake in poke32
staging: wilc1000: Fix bssid buffer offset in Txq
staging: fbtft: fb_ssd1331: fix mirrored display
staging: android: Fix checkpatch.pl error
staging: greybus: loopback: convert loopback to use generic async operations
staging: greybus: operation: add private data with get/set accessors
staging: greybus: loopback: Fix iteration count on async path
staging: greybus: loopback: Hold per-connection mutex across operations
staging: greybus/loopback: use ktime_get() for time intervals
staging: fsl-dpaa2/eth: Extra headroom in RX buffers
...
Pull timer updates from Thomas Gleixner:
"Yet another big pile of changes:
- More year 2038 work from Arnd slowly reaching the point where we
need to think about the syscalls themself.
- A new timer function which allows to conditionally (re)arm a timer
only when it's either not running or the new expiry time is sooner
than the armed expiry time. This allows to use a single timer for
multiple timeout requirements w/o caring about the first expiry
time at the call site.
- A new NMI safe accessor to clock real time for the printk timestamp
work. Can be used by tracing, perf as well if required.
- A large number of timer setup conversions from Kees which got
collected here because either maintainers requested so or they
simply got ignored. As Kees pointed out already there are a few
trivial merge conflicts and some redundant commits which was
unavoidable due to the size of this conversion effort.
- Avoid a redundant iteration in the timer wheel softirq processing.
- Provide a mechanism to treat RTC implementations depending on their
hardware properties, i.e. don't inflict the write at the 0.5
seconds boundary which originates from the PC CMOS RTC to all RTCs.
No functional change as drivers need to be updated separately.
- The usual small updates to core code clocksource drivers. Nothing
really exciting"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits)
timers: Add a function to start/reduce a timer
pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday()
timer: Prepare to change all DEFINE_TIMER() callbacks
netfilter: ipvs: Convert timers to use timer_setup()
scsi: qla2xxx: Convert timers to use timer_setup()
block/aoe: discover_timer: Convert timers to use timer_setup()
ide: Convert timers to use timer_setup()
drbd: Convert timers to use timer_setup()
mailbox: Convert timers to use timer_setup()
crypto: Convert timers to use timer_setup()
drivers/pcmcia: omap1: Fix error in automated timer conversion
ARM: footbridge: Fix typo in timer conversion
drivers/sgi-xp: Convert timers to use timer_setup()
drivers/pcmcia: Convert timers to use timer_setup()
drivers/memstick: Convert timers to use timer_setup()
drivers/macintosh: Convert timers to use timer_setup()
hwrng/xgene-rng: Convert timers to use timer_setup()
auxdisplay: Convert timers to use timer_setup()
sparc/led: Convert timers to use timer_setup()
mips: ip22/32: Convert timers to use timer_setup()
...
Pull x86 platform updates from Ingo Molnar:
"The main changes in this cycle were:
- a refactoring of the early virt init code by merging 'struct
x86_hyper' into 'struct x86_platform' and 'struct x86_init', which
allows simplifications and also the addition of a new
->guest_late_init() callback. (Juergen Gross)
- timer_setup() conversion of the UV code (Kees Cook)"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/virt/xen: Use guest_late_init to detect Xen PVH guest
x86/virt, x86/platform: Add ->guest_late_init() callback to hypervisor_x86 structure
x86/virt, x86/acpi: Add test for ACPI_FADT_NO_VGA
x86/virt: Add enum for hypervisors to replace x86_hyper
x86/virt, x86/platform: Merge 'struct x86_hyper' into 'struct x86_platform' and 'struct x86_init'
x86/platform/UV: Convert timers to use timer_setup()
Pull core locking updates from Ingo Molnar:
"The main changes in this cycle are:
- Another attempt at enabling cross-release lockdep dependency
tracking (automatically part of CONFIG_PROVE_LOCKING=y), this time
with better performance and fewer false positives. (Byungchul Park)
- Introduce lockdep_assert_irqs_enabled()/disabled() and convert
open-coded equivalents to lockdep variants. (Frederic Weisbecker)
- Add down_read_killable() and use it in the VFS's iterate_dir()
method. (Kirill Tkhai)
- Convert remaining uses of ACCESS_ONCE() to
READ_ONCE()/WRITE_ONCE(). Most of the conversion was Coccinelle
driven. (Mark Rutland, Paul E. McKenney)
- Get rid of lockless_dereference(), by strengthening Alpha atomics,
strengthening READ_ONCE() with smp_read_barrier_depends() and thus
being able to convert users of lockless_dereference() to
READ_ONCE(). (Will Deacon)
- Various micro-optimizations:
- better PV qspinlocks (Waiman Long),
- better x86 barriers (Michael S. Tsirkin)
- better x86 refcounts (Kees Cook)
- ... plus other fixes and enhancements. (Borislav Petkov, Juergen
Gross, Miguel Bernal Marin)"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits)
locking/x86: Use LOCK ADD for smp_mb() instead of MFENCE
rcu: Use lockdep to assert IRQs are disabled/enabled
netpoll: Use lockdep to assert IRQs are disabled/enabled
timers/posix-cpu-timers: Use lockdep to assert IRQs are disabled/enabled
sched/clock, sched/cputime: Use lockdep to assert IRQs are disabled/enabled
irq_work: Use lockdep to assert IRQs are disabled/enabled
irq/timings: Use lockdep to assert IRQs are disabled/enabled
perf/core: Use lockdep to assert IRQs are disabled/enabled
x86: Use lockdep to assert IRQs are disabled/enabled
smp/core: Use lockdep to assert IRQs are disabled/enabled
timers/hrtimer: Use lockdep to assert IRQs are disabled/enabled
timers/nohz: Use lockdep to assert IRQs are disabled/enabled
workqueue: Use lockdep to assert IRQs are disabled/enabled
irq/softirqs: Use lockdep to assert IRQs are disabled/enabled
locking/lockdep: Add IRQs disabled/enabled assertion APIs: lockdep_assert_irqs_enabled()/disabled()
locking/pvqspinlock: Implement hybrid PV queued/unfair locks
locking/rwlocks: Fix comments
x86/paravirt: Set up the virt_spin_lock_key after static keys get initialized
block, locking/lockdep: Assign a lock_class per gendisk used for wait_for_completion()
workqueue: Remove now redundant lock acquisitions wrt. workqueue flushes
...
Pull input layer updates from Dmitry Torokhov:
- a new ACPI ID for Elan touchpad found in yet another Ideapad model
- Synaptics RMI4 will allow binding to controllers reporting SMB
version 3 (note that we are not adding any new ACPI IDs to the
Synaptics PS/2 drover so unless user explicitly enables intertouch
support there is no user-visible change)
- a fixup to TSC 2004/5 touchscreen driver to mark input devices as
"direct" to help userspace identify the type of device they are
dealing with
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics-rmi4 - RMI4 can also use SMBUS version 3
Input: tsc200x-core - set INPUT_PROP_DIRECT
Input: elan_i2c - add ELAN060C to the ACPI table
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 114761
Addresses-Coverity-ID: 114762
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 114763
Addresses-Coverity-ID: 114764
Addresses-Coverity-ID: 114765
Addresses-Coverity-ID: 114766
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 114767
Addresses-Coverity-ID: 114768
Addresses-Coverity-ID: 114769
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We have to unlock before returning if input_allocate_device() fails.
Fixes: 04ce40a61a ("Input: uinput - remove uinput_allocate_device()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The S6SY761 touchscreen is a capicitive multi-touch controller
for mobile use. It's connected with i2c at the address 0x48.
This commit provides a basic version of the driver which can
handle only initialization, touch events and power states.
The controller is controlled by a firmware which, in the version
I currently have, doesn't provide all the possible
functionalities mentioned in the datasheet.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The HiDeep touchscreen device is a capacitive multi-touch controller
mainly for multi-touch supported devices use. It use I2C interface for
communication to IC and provide axis X, Y, Z locations for ten finger
touch through input event interface to userspace.
It support the Crimson and the Lime two type IC. They are different
the number of channel supported and FW size. But the working protocol
is same.
Signed-off-by: Anthony Kim <anthony.kim@hideep.com>
Acked-by: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Commit 1fa59bda21 ("ARM: shmobile: Remove legacy board code for
Armadillo-800 EVA"), removed the last user of st1232_pdata and the
"st1232-ts" platform device. All remaining users use DT.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.14-rc8' into next
Merge with mainline to bring in SPDX markings to avoid annoying merge
problems when some header files get deleted.
Some Synaptics devices, such as LEN0073, use SMBUS version 3.
Signed-off-by: Yiannis Marangos <yiannis.marangos@gmail.com>
Acked-by: Benjamin Tissoires <benjamion.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If INPUT_PROP_DIRECT is set, userspace doesn't have to fall back to old
ways of identifying touchscreen devices.
In order to identify a touchscreen device, Android for example, seems to
already depend on INPUT_PROP_DIRECT to be present in drivers. udev still
checks for either BTN_TOUCH or INPUT_PROP_DIRECT. Checking for BTN_TOUCH
however can quite easily lead to false positives; it's a code that not only
touchscreen device drivers use.
According to the documentation, touchscreen drivers should have this
property set and in order to make life easy for userspace, let's set it.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
ELAN060C touchpad uses elan_i2c as its driver. It can be
found on Lenovo ideapad 320-14AST.
BugLink: https://bugs.launchpad.net/bugs/1727544
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
"Just a couple of fixups to the sparse-keymap module and the Microchip
AR1021 touchscreen driver"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: sparse-keymap - send sync event for KE_SW/KE_VSW
Input: ar1021_i2c - set INPUT_PROP_DIRECT
Sync events are sent by sparse_keymap_report_entry for normal KEY_*
events, and are generated by several drivers after generating
SW_* events, so sparse_keymap_report_entry should do the same.
Without the sync, events are accumulated in the kernel.
Currently, no driver uses sparse-keymap for SW_* events, but
it is required for the intel-vbtn platform driver to generate
SW_TABLET_MODE events.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If INPUT_PROP_DIRECT is set, userspace doesn't have to fall back to old
ways of identifying touchscreen devices. Let's add it.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There are several places to perform subtraction to calculate buffer
size such as:
si->si_ofs.cydata_size = si->si_ofs.test_ofs - si->si_ofs.cydata_ofs;
...
p = krealloc(si->si_ptrs.cydata, si->si_ofs.cydata_size, GFP_KERNEL);
Actually, data types of above variables during subtraction are size_t, so
it is unsigned. That means if second operand(si->si_ofs.cydata_ofs) is
greater than the first operand(si->si_ofs.test_ofs), then resulting
si->si_ofs.cydata_size could result in an unsigned integer wrap which is
not desirable.
The proper way to correct this problem is to perform a test of both
operands to avoid having unsigned wrap.
Signed-off-by: Vince Kim <vince.k.kim@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull initial SPDX identifiers from Greg KH:
"License cleanup: add SPDX license identifiers to some files
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the
'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally
binding shorthand, which can be used instead of the full boiler plate
text.
This patch is based on work done by Thomas Gleixner and Kate Stewart
and Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset
of the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to
license had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied
to a file was done in a spreadsheet of side by side results from of
the output of two independent scanners (ScanCode & Windriver)
producing SPDX tag:value files created by Philippe Ombredanne.
Philippe prepared the base worksheet, and did an initial spot review
of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537
files assessed. Kate Stewart did a file by file comparison of the
scanner results in the spreadsheet to determine which SPDX license
identifier(s) to be applied to the file. She confirmed any
determination that was not immediately clear with lawyers working with
the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained
>5 lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that
was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that
became the concluded license(s).
- when there was disagreement between the two scanners (one detected
a license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply
(and which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases,
confirmation by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.
The Windriver scanner is based on an older version of FOSSology in
part, so they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot
checks in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect
the correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial
patch version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch
license was not GPL-2.0 WITH Linux-syscall-note to ensure that the
applied SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
License cleanup: add SPDX license identifier to uapi header files with a license
License cleanup: add SPDX license identifier to uapi header files with no license
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull input fixes from Dmitry Torokhov:
- fix gtco tablet driver, tightening parsing of HID descriptors
- add ACPI ID added to Elan driver to be able to handle touchpads found
in Lenovo Ideapad 320/520
- fix the Symaptics RMI4 driver to adjust handling of buttons
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics-rmi4 - limit the range of what GPIOs are buttons
Input: gtco - fix potential out-of-bound access
Input: elan_i2c - add ELAN0611 to the ACPI table
The pointer 'input' is being initialized with ts->ts_input and this
value is not being read as it is updated a few lines later with the
return value from the call to devm_input_allocate_device. Remove the
redundant initialization assignment. Cleans up clang warning:
drivers/input/touchscreen/mxs-lradc-ts.c:587:20: warning: Value Xi
stored to 'input' during its initialization is never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
By convention the first 6 bits of F30 Ctrl 2 and 3 are used to signify
GPIOs which are connected to buttons. Additional GPIOs may be used as
input GPIOs to signal the touch controller of some event
(ie disable touchpad). These additional GPIOs may meet the criteria of
a button in rmi_f30_is_valid_button() but should not be considered
buttons. This patch limits the GPIOs which are mapped to buttons to just
the first 6.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Reported-by: Daniel Martin <consume.noise@gmail.com>
Tested-by: Daniel Martin <consume.noise@gmail.com>
Acked-By: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
parse_hid_report_descriptor() has a while (i < length) loop, which
only guarantees that there's at least 1 byte in the buffer, but the
loop body can read multiple bytes which causes out-of-bounds access.
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The 3000 series have a new protocol which allows to report up to 5 points
in a single 66 byte frame. One must always read in 66 byte frames.
To support up to 10 points, two consecutive frames need to be read:
The first frame says how many points until sync.
The second frame must say zero points or both frames must be discarded.
To be able to work with the higher 400KHz I2C bus rate, one must
successfully send a special package prior _each_ read or the controller
will refuse to cooperate.
This is a minimal implementation based on egalax_i2c.c (which can be found
on the internet) and egalax_ts.c but without the vendor interface and no
power management support.
Signed-off-by: Ahmet Inan <inan@distec.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Please do not apply this to mainline directly, instead please re-run the
coccinelle script shown below and apply its output.
For several reasons, it is desirable to use {READ,WRITE}_ONCE() in
preference to ACCESS_ONCE(), and new code is expected to use one of the
former. So far, there's been no reason to change most existing uses of
ACCESS_ONCE(), as these aren't harmful, and changing them results in
churn.
However, for some features, the read/write distinction is critical to
correct operation. To distinguish these cases, separate read/write
accessors must be used. This patch migrates (most) remaining
ACCESS_ONCE() instances to {READ,WRITE}_ONCE(), using the following
coccinelle script:
----
// Convert trivial ACCESS_ONCE() uses to equivalent READ_ONCE() and
// WRITE_ONCE()
// $ make coccicheck COCCI=/home/mark/once.cocci SPFLAGS="--include-headers" MODE=patch
virtual patch
@ depends on patch @
expression E1, E2;
@@
- ACCESS_ONCE(E1) = E2
+ WRITE_ONCE(E1, E2)
@ depends on patch @
expression E;
@@
- ACCESS_ONCE(E)
+ READ_ONCE(E)
----
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: davem@davemloft.net
Cc: linux-arch@vger.kernel.org
Cc: mpe@ellerman.id.au
Cc: shuah@kernel.org
Cc: snitzer@redhat.com
Cc: thor.thayer@linux.intel.com
Cc: tj@kernel.org
Cc: viro@zeniv.linux.org.uk
Cc: will.deacon@arm.com
Link: http://lkml.kernel.org/r/1508792849-3115-19-git-send-email-paulmck@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Support was added based on Goodix GitHub repo [1]. There are two major
differences between gt1151 and currently supported devices (gt9x):
* CONFIG_DATA register has 0x8050 address instead of 0x8047,
* config data checksum has 16-bit width instead of 8-bit.
Also update goodix_i2c_test() function, so it reads ID register (which
has the same address for all devices) instead of CONFIG_DATA (because
its address is known only after reading ID of the device).
[1] https://github.com/goodix/gt1x_driver_generic
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
ELAN0611 touchpad uses elan_i2c as its driver. It can be found
on Lenovo ideapad 320-15IKB.
So add it to ACPI table to enable the touchpad.
[Ido Adiv <idoad123@gmail.com> reports that the same ACPI ID is used for
Elan touchpad in ideapad 520].
BugLink: https://bugs.launchpad.net/bugs/1723736
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We've been missing a goto to the unwind path...
Acked-by: Danilo Krummrich <danilokrummrich@dk-develop.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is nothing in the uinput kernel header that is of use to anyone in
the kernel besides the uinput driver itself, so let's fold it into the
driver code (leaving uapi part intact).
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is no need for this wrapper; let's use input_allocate_device()
directly, and complete initialization in uinput_create_device().
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Previously uinput force feedback requests waited for the userspace
indefinitely, which caused users to block when uinput server process
become unresponsive. Let's establish a 30 seconds deadline for servicing
upload and erase force feedback effect actions, so that users have a
chance to abort stuck requests.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Stephen Lu <lumotuwe@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Stephen Lu <lumotuwe@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.14-rc6' into next
Merge with mainline to bring in the timer API changes.
Pull input fixes from Dmitry Torokhov:
- joydev now implements a blacklist to avoid creating joystick nodes
for accelerometers found in composite devices such as PlaStation
controllers
- assorted driver fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ims-psu - check if CDC union descriptor is sane
Input: joydev - blacklist ds3/ds4/udraw motion sensors
Input: allow matching device IDs on property bits
Input: factor out and export input_device_id matching code
Input: goodix - poll the 'buffer status' bit before reading data
Input: axp20x-pek - fix module not auto-loading for axp221 pek
Input: tca8418 - enable interrupt after it has been requested
Input: stmfts - fix setting ABS_MT_POSITION_* maximum size
Input: ti_am335x_tsc - fix incorrect step config for 5 wire touchscreen
Input: synaptics - disable kernel tracking on SMBus devices
Before trying to use CDC union descriptor, try to validate whether that it
is sane by checking that intf->altsetting->extra is big enough and that
descriptor bLength is not too big and not too small.
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds support for the EDT M12 series of touchscreens.
Signed-off-by: Simon Budig <simon.budig@kernelconcepts.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Since the driver also is useful for some non-EDT touchscreens based on
the focaltec chips introduce the concept of a "generic" focaltec based
touch.
Use a better heuristics for model detection and be more specific in the
source.
Signed-off-by: Simon Budig <simon.budig@kernelconcepts.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This makes the GPIO mouse probe nicely from the device tree if found in a
tree. As the driver uses device properties it can easily be amended to also
probe from ACPI devices.
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This converts the GPIO mouse to use descriptors and fwnode properties. The
polarity settings go out the window since GPIO descriptor already know
about polarity so this should be configured in device tree or ACPI or
similar.
Set scanning interval by default to 50ms if not found as a property on the
device.
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use more appropriate names for the "platform data" which is now just a
simple state container for the GPIO mouse.
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is not used much: git grep gpio_mouse_platform_data shows
that absolutely nothing in the kernel defines this platform
data.
It could be argued that the driver should be deleted. But that
is a bit harsh I think since it seems generally useful. So
this patch starts a series which repurposes it to be used with
hardware nodes from device tree or ACPI.
This first patch simply localize the platform data header and
allocates a dummy platform data.
Yes: this patch leaves the driver in a pretty useless state,
but since nothing is instantiating this driver, it doesn't
make it more useless than it already is. Later patches makes
use of the driver.
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Introduce a device table used for blacklisting devices. We currently
blacklist the motion sensor subdevice of THQ Udraw and Sony ds3/ds4.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
[dtor: siwtched to blacklist built on input_device_id and using
input_match_device_id()]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Let's allow matching input devices on their property bits, both in-kernel
and when generating module aliases.
Tested-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Factor out and export input_match_device_id() so that modules may use it.
It will be needed by joydev to blacklist accelerometers in composite
devices.
Tested-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Goodix panel triggers an interrupt on touch events. However, its
registers will contain the valid values a short time after the
interrupt, and not when it's raised. At that moment, the 'buffer status'
bit is set.
Previously, if the 'buffer status' bit was not set when the registers
were read, the data was discarded and no input event was emitted,
causing "finger down" or "finger up" events to be missed sometimes.
This went unnoticed until v4.9, as the DesignWare I2C driver commonly
used with this driver had enough latency for that bug to never trigger
until commit 2702ea7dbe ("i2c: designware: wait for disable/enable only
if necessary").
Now, in the IRQ handler we will poll (with a timeout) the 'buffer status'
bit and process the data of the panel as soon as this bit gets set.
Note that the Goodix panel will send a few spurious interrupts after the
'finger up' event, in which the 'buffer status' bit will never be set.
Cc: Bastien Nocera <hadess@hadess.net>
Cc: russianneuromancer@ya.ru
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
[hdegoede@redhat.com: Change poll loop to use jiffies,
add comment about typical poll time]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[dtor: rearranged control flow a bit to avoid explicit goto and double
check]
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Now that we have a platform_device_id table and multiple supported ids
we should be using MODULE_DEVICE_TABLE instead of MODULE_ALIAS.
This fixes a regression on Bay and Cherry Trail devices, where the power
button is now enumerated as an "axp221-pek" and it was impossible to
wakeup these devices from suspend since the module did not load.
Fixes: c3cc94470b ("Input: axp20x-pek - add support for AXP221 PEK")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Currently, enabling keypad interrupts is one of the first operations
done on the keypad, even before the interrupt is requested, so there is
a small time window where the keypad can fire interrupts but the driver
is not yet ready to handle them. It's fine for level interrupts because
they will be handled anyway, but not so much for edge ones.
This commit modifies and moves the function in charge of configuring the
keypad. Enabling interrupts is now the last thing done on the keypad,
and after the interrupt has been requested by the driver.
Writing to the config register was also used to determine if the device
was indeed present on the bus or not, this has been replaced by reading
the lock/event count register to keep the same functionality.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The commit 78bcac7b2a ("Input: add support for the STMicroelectronics
FingerTip touchscreen) used the 'touchscreen_parse_properties()' helper
function in order to get the value of common properties.
But, commit 78bcac7b2a didn't set the capability of ABS_MT_POSITION_*
before calling touchscreen_parse_properties(). In result, the max_x and
max_y of 'struct touchscreen_properties' were not set.
Fixes: 78bcac7b2a ("Input: add support for the STMicroelectronics FingerTip touchscreen")
Cc: stable@vger.kernel.org
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Step config setting for 5 wire touchscreen is incorrect for Y coordinates.
It was broken while we moved to DT. If you look close at the offending
commit bb76dc09dd ("input: ti_am33x_tsc: Order of TSC wires, made
configurable"), the change was:
- STEPCONFIG_XNP | STEPCONFIG_YPN;
+ ts_dev->bit_xn | ts_dev->bit_yp;
while bit_xn = STEPCONFIG_XNN and bit_yp = STEPCONFIG_YNN. Not quite the
same.
Fixes: bb76dc09dd ("input: ti_am33x_tsc: Order of TSC wires, made configurable")
Signed-off-by: Jeff Lance <j-lance1@ti.com>
[vigneshr@ti.com: Rebase to v4.14-rc1]
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Michael Nazzareno Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The array rmi_f54_report_type_names is local to the source and does
not need to be in global scope, so make it static. Also make the array
const char * const.
Cleans up sparse warning:
symbol 'rmi_f54_report_type_names' was not declared. Should it be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In certain situations kernel tracking seems to be getting confused
and incorrectly reporting the slot of a contact. On example is when
the user does a three finger click or tap and then places two fingers
on the touchpad in the same area. The kernel tracking code seems to
continue to think that there are three contacts on the touchpad and
incorrectly alternates the slot of one of the contacts. The result that
is the input subsystem reports a stream of button press and release
events as the reported slot changes.
Kernel tracking was originally enabled to prevent cursor jumps, but it
is unclear how much of an issue kernel jumps actually are. This patch
simply disabled kernel tracking for now.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1482640
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Tested-by: Kamil Páral <kparal@redhat.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Commit 57b8ff070f ("driver core: add devm_device_add_group() and
friends") has added the managed version for creating sysfs group files.
Use devm_device_add_group instead of sysfs_create_group and remove the
action that cleans the sysfs file when exiting the driver.
Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Commit 57b8ff070f ("driver core: add devm_device_add_group() and
friends") has added the managed version for creating sysfs group files.
Use devm_device_add_group instead of sysfs_create_group and remove the
relative sysfs_remove_group and goto label.
Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Commit 57b8ff070f ("driver core: add devm_device_add_group() and
friends") has added the managed version for creating sysfs group files.
Use devm_device_add_group instead of sysfs_create_group and remove the
relative sysfs_remove_group.
Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Commit 57b8ff070f ("driver core: add devm_device_add_group() and
friends") has added the managed version for creating sysfs group files.
Use devm_device_add_group instead of sysfs_create_group and remove the
action that cleans the sysfs file when exiting the driver.
Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Commit 57b8ff070f ("driver core: add devm_device_add_group() and
friends") has added the managed version for creating sysfs group files.
Use devm_device_add_group instead of sysfs_create_group and remove the
action that cleans the sysfs file when exiting the driver.
Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Commit 57b8ff070f ("driver core: add devm_device_add_group() and
friends") has added the managed version for creating sysfs group files.
Use devm_device_add_group instead of sysfs_create_group and remove the
action that cleans the sysfs file when exiting the driver.
Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Commit 57b8ff070f ("driver core: add devm_device_add_group() and
friends") has added the managed version for creating sysfs group files.
Use devm_device_add_group instead of sysfs_create_group and remove the
action that cleans the sysfs file when exiting the driver.
Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On x86 we historically used falling edge interrupts in the driver
because that's how first Chrome devices were configured. They also
did not use ACPI to enumerate I2C devices (because back then there
was no kernel support for that), so trigger was hard-coded in the
driver. However the controller behavior is much more reliable if
we use level triggers, and that is how we configured ARM devices,
and how want to configure newer x86 devices as well. All newer
x86 boxes have their I2C devices enumerated in ACPI.
Let's see if platform code (ACPI, DT) described interrupt and
specified particular trigger type, and if so, let's use it instead
of always clobbering trigger with IRQF_TRIGGER_FALLING. We will
still use this trigger type as a fallback if platform code left
interrupt trigger unconfigured.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196761
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Change control of TOUCHSCREEN_USB_EASYTOUCH prompt string from
EMBEDDED to EXPERT to match the rest of this Kconfig file.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
A 2us delay is too small for the bus to settle after writing to the
register. Extend to 10us which gives more reliable results.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Remove the special SA1111 MMIO accessors from the SA1111 PS/2 driver
as their definition will be removed shortly. The SA1111 accessors are
barrierless, so use the _relaxed variants.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use the provided sa1111_get_irq() to fetch the IRQ resources for the
SA1111 PS/2 driver.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Note there is a misc driver drop in here given we have support
in IIO and the feeling is no one will care.
A large part of this series is a boiler plate removal series avoiding
the need to explicitly provide THIS_MODULE in various locations.
It's very dull but touches all drivers.
New device support
* ad5446
- add ids to support compatible parts DAC081S101, DAC101S101,
DAC121S101.
- add the dac7512 id and drop the misc driver as feeling is no
one is using it (was introduced for a board that is long obsolete)
* mt6577
- add bindings for mt2712 which is fully compatible with other
supported parts.
* st_pressure
- add support for LPS33HW and LPS35HW with bindings (ids mostly).
New features
* ccs811
- Add support for the data ready trigger.
* mma8452
- remove artifical restriction on supporting multiple event types
at the same time.
* tcs3472
- support out of threshold events
Core and tree wide cleanup
* Use macro magic to remove the need to provide THIS_MODULE as part of
struct iio_info or struct iio_trigger_ops. This is similar to
work done in a number of other subsystems (e.g. i2c, spi).
All drivers are fixed and then the fields in these structures are
removed.
This will cause build failures for out of tree drivers and any
new drivers that cross with this work going into the kernel.
Note mostly done with a coccinelle patch, included in the series
on the mailing list but not merged as the fields no longer exist
in the structures so the any hold outs will cause a build failure.
Cleanups
* ads1015
- avoid writing config register when it doesn't change.
- add 10% to conversion wait time as it seems it is sometimes
a little small.
* ade7753
- replace use of core mlock with a local lock. This is part of a
long term effort to make the use of mlock opaque and single
purpose.
* ade7759
- expand the use of buf_lock to cover previous mlock cases. This
is a slightly nicer solution to the same issue as in ade7753.
* cros_ec
- drop an unused variable
* inv_mpu6050
- add a missing break in a switch for consistency - not actual
bug,
- make some local arrays static to save on object code size.
* max5481
- drop manual setting of the spi module owner as handled by the
spi core.
* max5487
- drop manual setting of the spi module owner as handled by the
spi core.
* max9611
- drop explicit setting of the i2c module owner as handled by
the i2c core.
* mcp320x
- speed up reads on single channel devices,
- drop unused of_device_id data elements,
- document the struct mcp320x,
- improve binding docs to reflect restrictions on spi setup and
to make it explicit that the reference regulator is needed.
* mma8452
- symbolic to octal permissions,
- unsigned to unsigned int.
* st_lsm6dsx
- avoid setting odr values multiple times,
- drop config of LIR as it is only ever set to the existing
defaults,
- drop rounding configuration as it only ever matches the defaults.
* ti-ads8688
- drop manual setting of the spi module owner as handled by the
spi core.
* tsl2x7x
- constify the i2c_device_id,
- cleanup limit checks to avoid static checker warnings (and generally
have nicer code).
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Merge tag 'iio-for-4.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
Round one of new device support, features and cleanup for IIO in the 4.15 cycle.
Note there is a misc driver drop in here given we have support
in IIO and the feeling is no one will care.
A large part of this series is a boiler plate removal series avoiding
the need to explicitly provide THIS_MODULE in various locations.
It's very dull but touches all drivers.
New device support
* ad5446
- add ids to support compatible parts DAC081S101, DAC101S101,
DAC121S101.
- add the dac7512 id and drop the misc driver as feeling is no
one is using it (was introduced for a board that is long obsolete)
* mt6577
- add bindings for mt2712 which is fully compatible with other
supported parts.
* st_pressure
- add support for LPS33HW and LPS35HW with bindings (ids mostly).
New features
* ccs811
- Add support for the data ready trigger.
* mma8452
- remove artifical restriction on supporting multiple event types
at the same time.
* tcs3472
- support out of threshold events
Core and tree wide cleanup
* Use macro magic to remove the need to provide THIS_MODULE as part of
struct iio_info or struct iio_trigger_ops. This is similar to
work done in a number of other subsystems (e.g. i2c, spi).
All drivers are fixed and then the fields in these structures are
removed.
This will cause build failures for out of tree drivers and any
new drivers that cross with this work going into the kernel.
Note mostly done with a coccinelle patch, included in the series
on the mailing list but not merged as the fields no longer exist
in the structures so the any hold outs will cause a build failure.
Cleanups
* ads1015
- avoid writing config register when it doesn't change.
- add 10% to conversion wait time as it seems it is sometimes
a little small.
* ade7753
- replace use of core mlock with a local lock. This is part of a
long term effort to make the use of mlock opaque and single
purpose.
* ade7759
- expand the use of buf_lock to cover previous mlock cases. This
is a slightly nicer solution to the same issue as in ade7753.
* cros_ec
- drop an unused variable
* inv_mpu6050
- add a missing break in a switch for consistency - not actual
bug,
- make some local arrays static to save on object code size.
* max5481
- drop manual setting of the spi module owner as handled by the
spi core.
* max5487
- drop manual setting of the spi module owner as handled by the
spi core.
* max9611
- drop explicit setting of the i2c module owner as handled by
the i2c core.
* mcp320x
- speed up reads on single channel devices,
- drop unused of_device_id data elements,
- document the struct mcp320x,
- improve binding docs to reflect restrictions on spi setup and
to make it explicit that the reference regulator is needed.
* mma8452
- symbolic to octal permissions,
- unsigned to unsigned int.
* st_lsm6dsx
- avoid setting odr values multiple times,
- drop config of LIR as it is only ever set to the existing
defaults,
- drop rounding configuration as it only ever matches the defaults.
* ti-ads8688
- drop manual setting of the spi module owner as handled by the
spi core.
* tsl2x7x
- constify the i2c_device_id,
- cleanup limit checks to avoid static checker warnings (and generally
have nicer code).
Pull input fixes from Dmitry Torokhov:
- fixes for two long standing issues (lock up and a crash) in force
feedback handling in uinput driver
- tweak to firmware update timing in Elan I2C touchpad driver.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - extend Flash-Write delay
Input: uinput - avoid crash when sending FF request to device going away
Input: uinput - avoid FF flush when destroying device
The original 20ms delay is only marginally enough delay after a block write
operation during firmware update. Let's increase the delay to ensure that
the controller finishes up storing the page to avoid failures in the
firmware updates.
Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'ib-mfd-input-rtc-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next
Merge "Immutable branch between MFD, Input and RTC due for the v3.14
merge window" to have dm355evm_msp.h header moved into right place.
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Merge tag 'ib-mfd-many-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next
Merge "Immutable branch between MFD and many other subsystems due for
the v4.14 merge window" to get the TWL headers moved to the right place.
Normally, when input device supporting force feedback effects is being
destroyed, we try to "flush" currently playing effects, so that the
physical device does not continue vibrating (or executing other effects).
Unfortunately this does not work well for uinput as flushing of the effects
deadlocks with the destroy action:
- if device is being destroyed because the file descriptor is being closed,
then there is noone to even service FF requests;
- if device is being destroyed because userspace sent UI_DEV_DESTROY,
while theoretically it could be possible to service FF requests,
userspace is unlikely to do so (they'd need to make sure FF handling
happens on a separate thread) even if kernel solves the issue with FF
ioctls deadlocking with UI_DEV_DESTROY ioctl on udev->mutex.
To avoid lockups like the one below, let's install a custom input device
flush handler, and avoid trying to flush force feedback effects when we
destroying the device, and instead rely on uinput to shut off the device
properly.
NMI watchdog: Watchdog detected hard LOCKUP on cpu 3
...
<<EOE>> [<ffffffff817a0307>] _raw_spin_lock_irqsave+0x37/0x40
[<ffffffff810e633d>] complete+0x1d/0x50
[<ffffffffa00ba08c>] uinput_request_done+0x3c/0x40 [uinput]
[<ffffffffa00ba587>] uinput_request_submit.part.7+0x47/0xb0 [uinput]
[<ffffffffa00bb62b>] uinput_dev_erase_effect+0x5b/0x76 [uinput]
[<ffffffff815d91ad>] erase_effect+0xad/0xf0
[<ffffffff815d929d>] flush_effects+0x4d/0x90
[<ffffffff815d4cc0>] input_flush_device+0x40/0x60
[<ffffffff815daf1c>] evdev_cleanup+0xac/0xc0
[<ffffffff815daf5b>] evdev_disconnect+0x2b/0x60
[<ffffffff815d74ac>] __input_unregister_device+0xac/0x150
[<ffffffff815d75f7>] input_unregister_device+0x47/0x70
[<ffffffffa00bac45>] uinput_destroy_device+0xb5/0xc0 [uinput]
[<ffffffffa00bb2de>] uinput_ioctl_handler.isra.9+0x65e/0x740 [uinput]
[<ffffffff811231ab>] ? do_futex+0x12b/0xad0
[<ffffffffa00bb3f8>] uinput_ioctl+0x18/0x20 [uinput]
[<ffffffff81241248>] do_vfs_ioctl+0x298/0x480
[<ffffffff81337553>] ? security_file_ioctl+0x43/0x60
[<ffffffff812414a9>] SyS_ioctl+0x79/0x90
[<ffffffff817a04ee>] entry_SYSCALL_64_fastpath+0x12/0x71
Reported-by: Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
Reported-by: Clément VUCHENER <clement.vuchener@gmail.com>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=193741
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
FIFO_MODE() is a macro expression with a '<<' operator, which gcc points
out could be misread as a '<':
drivers/input/misc/adxl34x.c: In function 'adxl34x_probe':
drivers/input/misc/adxl34x.c:799:36: error: '<<' in boolean context, did you mean '<' ? [-Werror=int-in-bool-context]
While utility of this warning is being disputed (Chief Penguin: "This
warning is clearly pure garbage.") FIFO_MODE() extracts range of values,
with 0 being FIFO_BYPASS, and not something that is logically boolean.
This converts the test to an explicit comparison with FIFO_BYPASS,
making it clearer to gcc and the reader what is intended.
Fixes: e27c729219 ("Input: add driver for ADXL345/346 Digital Accelerometers")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds support for the new AC97 bus code, which discovers the devices
rather than uses platform data.
As part of this discovery, it enables a multi-function device wm97xx,
which supports touchscreen, battery, ADC and an audio codec. This patch
adds the code to bind the touchscreen "cell" as the touchscreen driver.
This was tested on the pxa architecture with a pxa270 + wm9713 + the
mioa701 touchscreen.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
wm97xx-core does several things in it initialization :
- touchscreen input device setup
- battery device creation
As the wm97xx is actually a multi-function device handling an audio
codec, a touchscreen, a gpio block and an ADC, reshape the probing to
isolate what is truly input/touchscreen specific from the remaining
part.
This is only code shuffling, there is no functional change.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Pull more input updates from Dmitry Torokhov:
"A second round of updates for the input subsystem:
- a new driver for PWM-controlled vibrators
- ucb1400 touchscreen driver had completely busted suspend/resume
handling
- we now handle "home" button found on some devices with Goodix
touchscreens
- assorted other fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - add Gigabyte P57 to the keyboard reset table
Input: xpad - validate USB endpoint type during probe
Input: ucb1400_ts - fix suspend and resume handling
Input: edt-ft5x06 - fix access to non-existing register
Input: elantech - make arrays debounce_packet static, reduces object code size
Input: surface3_spi - make const array header static, reduces object code size
Input: goodix - add support for capacitive home button
Input: add a driver for PWM controllable vibrators
Input: adi - make array seq static, reduces object code size
Similar to other Gigabyte laptops, the touchpad on P57 requires a
keyboard reset to detect Elantech touchpad correctly.
BugLink: https://bugs.launchpad.net/bugs/1594214
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
... and __initconst if applicable.
Based on similar work for an older kernel in the Grsecurity patch.
[JD: fix toshiba-wmi build]
[JD: add htcpen]
[JD: move __initconst where checkscript wants it]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
We should only see devices with interrupt endpoints. Ignore any other
endpoints that we find, so we don't send try to send them interrupt URBs
and trigger a WARN down in the USB stack.
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Cc: <stable@vger.kernel.org> # c01b5e7464 Input: xpad - don't depend on endpoint order
Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of stopping the touchscreen we were starting it in suspend, and
disabling it in resume.
Fixes: c899afedf1 ("Input: ucb1400_ts - convert to threaded IRQ")
Reported-by: Anton Volkov <avolkov@ispras.ru>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
reg_addr->reg_report_rate is supposed to exist in M06, not M09.
The driver is written to skip avoids access to non-existing registers
when the register address is NO_REGISTER (0xff). But
reg_addr->reg_report_rate is initialized to 0x00 by devm_kzalloc() (in
edt_ft5x06_ts_probe()) and not changed thereafter. So the checks do
not work and an access to register 0x00 is done.
Fix by setting reg_addr->reg_report_rate to NO_REGISTER.
Also fix the only place where reg_report_rate is checked against zero
instead of NO_REGISTER.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Don't populate the arrays debounce_packet on the stack, instead make
them static. Makes the object code smaller by over 870 bytes:
Before:
text data bss dec hex filename
30553 9152 0 39705 9b19 drivers/input/mouse/elantech.o
After:
text data bss dec hex filename
29521 9312 0 38833 97b1 drivers/input/mouse/elantech.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Don't populate the const array header on the stack, instead make it
static. Makes the object code smaller by over 180 bytes:
Before:
text data bss dec hex filename
6003 1536 0 7539 1d73 surface3_spi.o
After:
text data bss dec hex filename
5726 1632 0 7358 1cbe surface3_spi.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On some x86 tablets with a Goodix touchscreen, the Windows logo on the
front is a capacitive home button. Touching this button results in a touch
with bit 4 of the first byte set, while only the lower 4 bits (0-3) are
used to indicate the number of touches.
Report a KEY_LEFTMETA press when this happens.
Note that the hardware might support more than one button, in which
case the "id" byte of coor_data would identify the button in question.
This is not implemented as we don't have access to hardware with
multiple buttons.
Signed-off-by: Sergei A. Trusov <sergei.a.trusov@ya.ru>
Acked-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- RK805 Power Management IC (PMIC)
- ROHM BD9571MWV-M MFD Power Management IC (PMIC)
- Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs
- New Device Support
- Add support for HiSilicon Hi6421v530 to hi6421-pmic-core
- Add support for X-Powers AXP806 to axp20x
- Add support for X-Powers AXP813 to axp20x
- Add support for Intel Sunrise Point LPSS to intel-lpss-pci
- New Functionality
- Amend API to provide register layout; atmel-smc
- Fix-ups
- DT re-work; omap, nokia
- Header file location change {I2C => MFD}; dm355evm_msp, tps65010
- Fix chip ID formatting issue(s); rk808
- Optionally register touchscreen devices; da9052-core
- Documentation improvements; twl-core
- Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi
- Drop unnecessary static declaration; max8925-i2c
- Kconfig changes (missing deps and remove module support)
- Slim down oversized licence statement; hi6421-pmic-core
- Use managed resources (devm_*); lp87565
- Supply proper error checking/handling; t7l66xb
- Bug Fixes
- Fix counter duplication issue; da9052-core
- Fix potential NULL deference issue; max8998
- Leave SPI-NOR write-protection bit alone; lpc_ich
- Ensure device is put into reset during suspend; intel-lpss
- Correct register offset variable size; omap-usb-tll
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Merge tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers
- RK805 Power Management IC (PMIC)
- ROHM BD9571MWV-M MFD Power Management IC (PMIC)
- Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs
New Device Support:
- Add support for HiSilicon Hi6421v530 to hi6421-pmic-core
- Add support for X-Powers AXP806 to axp20x
- Add support for X-Powers AXP813 to axp20x
- Add support for Intel Sunrise Point LPSS to intel-lpss-pci
New Functionality:
- Amend API to provide register layout; atmel-smc
Fix-ups:
- DT re-work; omap, nokia
- Header file location change {I2C => MFD}; dm355evm_msp, tps65010
- Fix chip ID formatting issue(s); rk808
- Optionally register touchscreen devices; da9052-core
- Documentation improvements; twl-core
- Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi
- Drop unnecessary static declaration; max8925-i2c
- Kconfig changes (missing deps and remove module support)
- Slim down oversized licence statement; hi6421-pmic-core
- Use managed resources (devm_*); lp87565
- Supply proper error checking/handling; t7l66xb
Bug Fixes:
- Fix counter duplication issue; da9052-core
- Fix potential NULL deference issue; max8998
- Leave SPI-NOR write-protection bit alone; lpc_ich
- Ensure device is put into reset during suspend; intel-lpss
- Correct register offset variable size; omap-usb-tll"
* tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (61 commits)
mfd: intel_soc_pmic: Differentiate between Bay and Cherry Trail CRC variants
mfd: intel_soc_pmic: Export separate mfd-cell configs for BYT and CHT
dt-bindings: mfd: Add bindings for ZII RAVE devices
mfd: omap-usb-tll: Fix register offsets
mfd: da9052: Constify spi_device_id
mfd: intel-lpss: Put I2C and SPI controllers into reset state on suspend
mfd: da9055: Constify i2c_device_id
mfd: intel-lpss: Add missing PCI ID for Intel Sunrise Point LPSS devices
mfd: t7l66xb: Handle return value of clk_prepare_enable
mfd: Add ROHM BD9571MWV-M PMIC DT bindings
mfd: intel_soc_pmic_chtwc: Turn Kconfig option into a bool
mfd: lp87565: Convert to use devm_mfd_add_devices()
mfd: Add support for TPS68470 device
mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Haswell/Broadwell
mfd: syscon: atmel-smc: Add helper to retrieve register layout
mfd: axp20x: Use correct platform device ID for many PEK
dt-bindings: mfd: axp20x: Introduce bindings for AXP813
mfd: axp20x: Add support for AXP813 PMIC
dt-bindings: mfd: axp20x: Add AXP806 to supported list of chips
mfd: Add ROHM BD9571MWV-M MFD PMIC driver
...
Here is the "big" driver core update for 4.14-rc1.
It's really not all that big, the largest thing here being some firmware
tests to help ensure that that crazy api is working properly.
There's also a new uevent for when a driver is bound or unbound from a
device, fixing a hole in the driver model that's been there since the
very beginning. Many thanks to Dmitry for being persistent and pointing
out how wrong I was about this all along :)
Patches for the new uevents are already in the systemd tree, if people
want to play around with them.
Otherwise just a number of other small api changes and updates here,
nothing major. All of these patches have been in linux-next for a
while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core update from Greg KH:
"Here is the "big" driver core update for 4.14-rc1.
It's really not all that big, the largest thing here being some
firmware tests to help ensure that that crazy api is working properly.
There's also a new uevent for when a driver is bound or unbound from a
device, fixing a hole in the driver model that's been there since the
very beginning. Many thanks to Dmitry for being persistent and
pointing out how wrong I was about this all along :)
Patches for the new uevents are already in the systemd tree, if people
want to play around with them.
Otherwise just a number of other small api changes and updates here,
nothing major. All of these patches have been in linux-next for a
while with no reported issues"
* tag 'driver-core-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (28 commits)
driver core: bus: Fix a potential double free
Do not disable driver and bus shutdown hook when class shutdown hook is set.
base: topology: constify attribute_group structures.
base: Convert to using %pOF instead of full_name
kernfs: Clarify lockdep name for kn->count
fbdev: uvesafb: remove DRIVER_ATTR() usage
xen: xen-pciback: remove DRIVER_ATTR() usage
driver core: Document struct device:dma_ops
mod_devicetable: Remove excess description from structured comment
test_firmware: add batched firmware tests
firmware: enable a debug print for batched requests
firmware: define pr_fmt
firmware: send -EINTR on signal abort on fallback mechanism
test_firmware: add test case for SIGCHLD on sync fallback
initcall_debug: add deferred probe times
Input: axp20x-pek - switch to using devm_device_add_group()
Input: synaptics_rmi4 - use devm_device_add_group() for attributes in F01
Input: gpio_keys - use devm_device_add_group() for attributes
driver core: add devm_device_add_group() and friends
driver core: add device_{add|remove}_group() helpers
...
Pull parisc updates from Helge Deller:
"Major changes include:
- Full support of the firmware Page Deallocation Table with
MADV_HWPOISON and MADV_SOFT_OFFLINE. A kernel thread scans
regularily for new bad memory pages.
- Full support for self-extracting kernel.
- Added UBSAN support.
- Lots of section mismatch fixes across all parisc drivers.
- Added examples for %pF and %pS usage in printk-formats.txt"
* 'parisc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: (28 commits)
printk-formats.txt: Add examples for %pF and %pS usage
parisc: Fix up devices below a PCI-PCI MegaRAID controller bridge
parisc/core: Fix section mismatches
parisc/ipmi_si_intf: Fix section mismatches on parisc platform
parisc/input/hilkbd: Fix section mismatches
parisc/net/lasi_82596: Fix section mismatches
parisc/serio: Fix section mismatches in gscps2 and hp_sdc drivers
parisc: Fix section mismatches in parisc core drivers
parisc/parport_gsc: Fix section mismatches
parisc/scsi/lasi700: Fix section mismatches
parisc/scsi/zalon: Fix section mismatches
parisc/8250_gsc: Fix section mismatches
parisc/mux: Fix section mismatches
parisc/sticore: Fix section mismatches
parisc/harmony: Fix section mismatches
parisc: Wire up support for self-extracting kernel
parisc: Make existing core files reuseable for bootloader
parisc: Add core code for self-extracting kernel
parisc: Enable UBSAN support
parisc/random: Add machine specific randomness
...
Provide a simple driver for PWM controllable vibrators.
It will be used by Motorola Droid 4.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Don't populate the array seq on the stack, instead make it static.
Makes the object code smaller by over 170 bytes:
Before:
text data bss dec hex filename
13227 3232 0 16459 404b drivers/input/joystick/adi.o
After:
text data bss dec hex filename
12957 3328 0 16285 3f9d drivers/input/joystick/adi.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Pull input fixes from Dmitry Torokhov:
"Just a couple drivers fixes (Synaptics PS/2, Xpad)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - fix PowerA init quirk for some gamepad models
Input: synaptics - fix device info appearing different on reconnect
Don't populate the array seq on the stack, instead make it static.
Makes the object code smaller by over 1100 bytes:
Before:
text data bss dec hex filename
6152 1216 64 7432 1d08 drivers/input/mouse/byd.o
After:
text data bss dec hex filename
4974 1280 64 6318 18ae drivers/input/mouse/byd.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fix multiline comments style not to be reported by checkpatch.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
clk_prepare_enable() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
clk_prepare_enable() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The PowerA gamepad initialization quirk worked with the PowerA
wired gamepad I had around (0x24c6:0x543a), but a user reported [0]
that it didn't work for him, even though our gamepads shared the
same vendor and product IDs.
When I initially implemented the PowerA quirk, I wanted to avoid
actually triggering the rumble action during init. My tests showed
that my gamepad would work correctly even if it received a rumble
of 0 intensity, so that's what I went with.
Unfortunately, this apparently isn't true for all models (perhaps
a firmware difference?). This non-working gamepad seems to require
the real magic rumble packet that the Microsoft driver sends, which
actually vibrates the gamepad. To counteract this effect, I still
send the old zero-rumble PowerA quirk packet which cancels the
rumble effect before the motors can spin up enough to vibrate.
[0]: https://github.com/paroj/xpad/issues/48#issuecomment-313904867
Reported-by: Kyle Beauchamp <kyleabeauchamp@gmail.com>
Tested-by: Kyle Beauchamp <kyleabeauchamp@gmail.com>
Fixes: 81093c9848 ("Input: xpad - support some quirky Xbox One pads")
Cc: stable@vger.kernel.org # v4.12
Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
User-modified input settings no longer survive a suspend/resume cycle.
Starting with 4.12, the touchpad is reinitialized on every reconnect
because the hardware appears to be different. This can be reproduced
by running the following as root:
echo -n reconnect >/sys/devices/platform/i8042/serio1/drvctl
A line like the following will show up in dmesg:
[30378.295794] psmouse serio1: synaptics: hardware appears to be
different: id(149271-149271), model(114865-114865),
caps(d047b3-d047b1), ext(b40000-b40000).
Note the single bit difference in caps: bit 1 (SYN_CAP_MULTIFINGER).
This happens because we modify our stored copy of the device info
capabilities when we enable advanced gesture mode but this change is
not reflected in the actual hardware capabilities.
It worked in the past because synaptics_query_hardware used to modify
the stored synaptics_device_info struct instead of filling in a new
one, as it does now.
Fix it by no longer faking the SYN_CAP_MULTIFINGER bit when setting
advanced gesture mode. This necessitated a small refactoring.
Fixes: 6c53694fb2 ("Input: synaptics - split device info into a separate structure")
Signed-off-by: Anthony Martin <ality@pbrane.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This driver provides PS/2 serio bus support by implementing bit banging
with the GPIO API. The GPIO pins, data and clock, can be configured with
a node in the device tree or by generic device properties (GDP).
Writing to a device is supported as well, though it is possible timings
can not be halt as they are tough and difficult to reach with bit banging.
Therefore it can be configured (also in DT and GDP) whether the serio
write function should be available for clients.
This driver is for development purposes and not recommended for productive
use. However, this driver can be useful e.g. when no USB port is available
or using old peripherals is desired as PS/2 controller chips getting rare.
This driver was tested on bcm2825 and on Kirin 960 and it worked well
together with the atkbd and psmouse driver.
Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Long pressed key could not show right in XEN vncviewer after tigervnc
client changed the way how to send repeat keys, from "Down Up Down Up
..." to "Down Down ... Up". This will report autorepeat to input by
checking if same key being pressed, and let handler process it finally.
Signed-off-by: Liang Yan <lyan@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input fixes from Dmitry Torokhov:
- a tweak to the IBM Trackpoint driver that helps recognizing
trackpoints on never Lenovo Carbons
- a fix to the ALPS driver solving scroll issues on some Dells
- yet another ACPI ID has been added to Elan I2C toucpad driver
- quieted diagnostic message in soc_button_array driver
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ALPS - fix two-finger scroll breakage in right side on ALPS touchpad
Input: soc_button_array - silence -ENOENT error on Dell XPS13 9365
Input: trackpoint - add new trackpoint firmware ID
Input: elan_i2c - add ELAN0602 ACPI ID to support Lenovo Yoga310
amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixed the issue that two finger scroll does not work correctly
on V8 protocol. The cause is that V8 protocol X-coordinate decode
is wrong at SS4 PLUS device. I added SS4 PLUS X decode definition.
Mote notes:
the problem manifests itself by the commit e7348396c6 ("Input: ALPS
- fix V8+ protocol handling (73 03 28)"), where a fix for the V8+
protocol was applied. Although the culprit must have been present
beforehand, the two-finger scroll worked casually even with the
wrongly reported values by some reason. It got broken by the commit
above just because it changed x_max value, and this made libinput
correctly figuring the MT events. Since the X coord is reported as
falsely doubled, the events on the right-half side go outside the
boundary, thus they are no longer handled. This resulted as a broken
two-finger scroll.
One finger event is decoded differently, and it didn't suffer from
this problem. The problem was only about MT events. --tiwai
Fixes: e7348396c6 ("Input: ALPS - fix V8+ protocol handling (73 03 28)")
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Paul Donohue <linux-kernel@PaulSD.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is now handled via some macro magic during the register. The
field in iio_info will be removed shortly.
Cc: Linux Input <linux-input@vger.kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Provide support for controlling reset pin. If this is not driven
correctly the device will be held in reset and will not respond.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Switch mxt_data and interrupt to resource managed allocation methods,
which cleans up the driver slightly and prepares for adding
reset GPIO support.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Dell XPS13 9365 has an INT33D2 ACPI node with no GPIOs, causing
the following error in dmesg:
[ 7.172275] soc_button_array: probe of INT33D2:00 failed with error -2
This commit silences this, by returning -ENODEV when there are no GPIOs.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=196679
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by <linux/serio.h> work with
const serio_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Andy Shevchenko