These are mostly minor cleanups and bugfixes that address harmless
problems.
The largest branch is a conversion of the omap platform
to use GPIO descriptors throughout the tree, for any devices that
are not fully converted to devicetree.
The Samsung Exynos platform gains back support for the Exynos4212
chip that was previously unused and removed but is now used for
the Samsung Galaxy Tab3.
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Merge tag 'soc-arm-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC updates from Arnd Bergmann:
"These are mostly minor cleanups and bugfixes that address harmless
problems.
The largest branch is a conversion of the omap platform to use GPIO
descriptors throughout the tree, for any devices that are not fully
converted to devicetree.
The Samsung Exynos platform gains back support for the Exynos4212 chip
that was previously unused and removed but is now used for the Samsung
Galaxy Tab3"
* tag 'soc-arm-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
ARM: omap2: Fix copy/paste bug
MAINTAINERS: Replace my email address
Input: ads7846 - fix pointer cast warning
Input: ads7846 - Fix usage of match data
ARM: omap2: Fix checkpatch issues
arm: omap1: replace printk() with pr_err macro
ARM: omap: Fix checkpatch issues
ARM: s3c: Switch i2c drivers back to use .probe()
ARM: versatile: mark mmc_status() static
ARM: spear: include "pl080.h" for pl080_get_signal() prototype
ARM: sa1100: address missing prototype warnings
ARM: pxa: fix missing-prototypes warnings
ARM: orion5x: fix d2net gpio initialization
ARM: omap2: fix missing tick_broadcast() prototype
ARM: omap1: add missing include
ARM: lpc32xx: add missing include
ARM: imx: add missing include
ARM: highbank: add missing include
ARM: ep93xx: fix missing-prototype warnings
ARM: davinci: fix davinci_cpufreq_init() declaration
...
- improvements to PS/2 handling for case when EC has already latched a
scancode in the data register, but the kernel expects to receive an
ACK to a command it sent to a device (such as keyboard LED toggle)
- input drivers for devices connected over I2C bus have been switched
back to using [new] .probe()
- uinput allows userspace to inject timestamps for input events
- support for capacitive keys in Atmel touch controller driver
- assorted fixes to drv260x, pwm-vibra, ili210x, adxl34x, and other
drivers.
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Merge tag 'input-for-v6.5-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- improvements to PS/2 handling for case when EC has already latched a
scancode in the data register, but the kernel expects to receive an
ACK to a command it sent to a device (such as keyboard LED toggle)
- input drivers for devices connected over I2C bus have been switched
back to using [new] .probe()
- uinput allows userspace to inject timestamps for input events
- support for capacitive keys in Atmel touch controller driver
- assorted fixes to drv260x, pwm-vibra, ili210x, adxl34x, and other
drivers
* tag 'input-for-v6.5-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
Input: pm8941-powerkey - fix debounce on gen2+ PMICs
MAINTAINERS: Adjust Qualcomm driver globbing
Input: gameport - provide default trigger() and read()
Input: tps65219-pwrbutton - use regmap_set_bits()
Input: tps65219-pwrbutton - convert to .remove_new()
Input: tests - add test to cover all input_grab_device() function
Input: gpio-keys - use input_report_key()
Input: xpad - spelling fixes for "Xbox"
Input: add HAS_IOPORT dependencies
Input: libps2 - do not discard non-ack bytes when controlling LEDs
Input: libps2 - introduce common interrupt handler
Input: libps2 - fix aborting PS/2 commands
Input: libps2 - fix NAK handling
Input: libps2 - rework handling of command response
Input: libps2 - remove special handling of ACK for command byte
Input: libps2 - attach ps2dev instances as serio port's drvdata
Input: Switch i2c drivers back to use .probe()
dt-bindings: input: cypress,cyapa: convert to dtschema
Input: adxl34x - do not hardcode interrupt trigger type
Input: pwm-vibra - add support for enable GPIO
...
Core GPIO library:
- remove unused symbols
- don't spam the kernel log with messages about hogs
- remove old sysfs API cruft
- improve handling of GPIO masks
New drivers
- add a driver for the BlueField-3 GPIO controller
- add GPIO support for the TPS65219 PMIC
Driver improvements:
- extend the gpio-aggregator driver to support ramp-up/ramp-down delay
- remove unnecessary CONFIG_OF guards from gpio-aggregator
- readability improvements in gpio-tangier
- switch i2c drivers back to using probe() now that it's been converted in
the i2c subsystem to not taking the id parameter
- remove unused inclusions of of_gpio.h in several drivers
- make pm ops static in gpio-davinci and fix a comment
- use more devres in drivers to shrink and simplify the code
- add missing include in gpio-sa1100
- add HAS_IOPORT KConfig dependency where needed
- add permissions checks before accessing pins in gpio-tegra186
- convert the gpio-zynq driver to using immutable irqchips
- preserve output settings set by the bootloader in gpio-mpc8xxx
Selftests:
- tweak the variable naming in script tests
Device tree updates:
- convert gpio-mmio and gpio-stmpe to YAML
- add parsing of GPIO hogs to gpio-vf610
- add bindings for the Cirrus EP93xx GPIO controller
- add gpio-line-names property to the gpio-pca9570 bindings
- extend the binding for x-powers,axp209 with another block
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Merge tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have two new drivers, some improvements to the core code, lots of
different updates to existing GPIO drivers and some dt-bindings on
top.
There's nothing controversial in here and almost everything has been
in next for more than a week (95% a lot longer than this). The only
thing that has spent less time in next is a new driver so no risk of
regressions.
The single merge pulls in changes that remove all usage of global GPIO
numbers from arch/arm/mach-omap.
Core GPIO library:
- remove unused symbols
- don't spam the kernel log with messages about hogs
- remove old sysfs API cruft
- improve handling of GPIO masks
New drivers:
- add a driver for the BlueField-3 GPIO controller
- add GPIO support for the TPS65219 PMIC
Driver improvements:
- extend the gpio-aggregator driver to support ramp-up/ramp-down
delay
- remove unnecessary CONFIG_OF guards from gpio-aggregator
- readability improvements in gpio-tangier
- switch i2c drivers back to using probe() now that it's been
converted in the i2c subsystem to not taking the id parameter
- remove unused inclusions of of_gpio.h in several drivers
- make pm ops static in gpio-davinci and fix a comment
- use more devres in drivers to shrink and simplify the code
- add missing include in gpio-sa1100
- add HAS_IOPORT KConfig dependency where needed
- add permissions checks before accessing pins in gpio-tegra186
- convert the gpio-zynq driver to using immutable irqchips
- preserve output settings set by the bootloader in gpio-mpc8xxx
Selftests:
- tweak the variable naming in script tests
Device tree updates:
- convert gpio-mmio and gpio-stmpe to YAML
- add parsing of GPIO hogs to gpio-vf610
- add bindings for the Cirrus EP93xx GPIO controller
- add gpio-line-names property to the gpio-pca9570 bindings
- extend the binding for x-powers,axp209 with another block"
* tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (58 commits)
of: unittest: drop assertions for GPIO hog messages
gpiolib: Drop unused domain_ops memeber of GPIO IRQ chip
gpio: synq: remove unused zynq_gpio_irq_reqres/zynq_gpio_irq_relres
dt-bindings: gpio: gpio-vf610: Add parsing of hogs
gpio: lpc18xx: Remove unused of_gpio.h inclusion
gpio: xra1403: Remove unused of_gpio.h inclusion
gpio: mpc8xxx: Remove unused of_gpio.h inclusion
dt-bindings: gpio: Add Cirrus EP93xx
gpio: mpc8xxx: latch GPIOs state on module load when configured as output
selftests: gpio: gpio-sim: Use same variable name for sysfs pathname
gpio: mlxbf3: Add gpio driver support
gpio: delay: Remove duplicative functionality
gpio: aggregator: Set up a parser of delay line parameters
gpio: aggregator: Support delay for setting up individual GPIOs
gpio: aggregator: Remove CONFIG_OF and of_match_ptr() protections
dt-bindings: gpio: pca9570: add gpio-line-names property
gpiolib: remove unused gpio_cansleep()
gpio: tps65219: add GPIO support for TPS65219 PMIC
gpio: zynq: fix zynqmp_gpio not an immutable chip warning
gpio: davinci: make davinci_gpio_dev_pm_ops static
...
This release is almost all drivers, there's some small improvements in
the core but otherwise everything is updates to drivers, mostly the
addition of new ones.
There's also a bunch of changes pulled in from the MFD subsystem as
dependencies, Rockchip and TI core MFD code that the regulator drivers
depend on.
I've also yet again managed to put a SPI commit in the regulator tree, I
don't know what it is about those two trees (this for spi-geni-qcom).
- Support for Renesas RAA215300, Rockchip RK808, Texas Instruments
TPS6594 and TPS6287x, and X-Powers AXP15060 and AXP313a
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Merge tag 'regulator-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This release is almost all drivers, there's some small improvements in
the core but otherwise everything is updates to drivers, mostly the
addition of new ones.
There's also a bunch of changes pulled in from the MFD subsystem as
dependencies, Rockchip and TI core MFD code that the regulator drivers
depend on.
I've also yet again managed to put a SPI commit in the regulator tree,
I don't know what it is about those two trees (this for
spi-geni-qcom).
Summary:
- Support for Renesas RAA215300, Rockchip RK808, Texas Instruments
TPS6594 and TPS6287x, and X-Powers AXP15060 and AXP313a"
* tag 'regulator-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (43 commits)
regulator: Add Renesas PMIC RAA215300 driver
regulator: dt-bindings: Add Renesas RAA215300 PMIC bindings
regulator: ltc3676: Use maple tree register cache
regulator: ltc3589: Use maple tree register cache
regulator: helper: Document ramp_delay parameter of regulator_set_ramp_delay_regmap()
regulator: mt6358: Use linear voltage helpers for single range regulators
regulator: mt6358: Const-ify mt6358_regulator_info data structures
regulator: mt6358: Drop *_SSHUB regulators
regulator: mt6358: Merge VCN33_* regulators
regulator: dt-bindings: mt6358: Drop *_sshub regulators
regulator: dt-bindings: mt6358: Merge ldo_vcn33_* regulators
regulator: dt-bindings: pwm-regulator: Add missing type for "pwm-dutycycle-unit"
regulator: Switch two more i2c drivers back to use .probe()
spi: spi-geni-qcom: Do not do DMA map/unmap inside driver, use framework instead
soc: qcom: geni-se: Add interfaces geni_se_tx_init_dma() and geni_se_rx_init_dma()
regulator: tps6594-regulator: Add driver for TI TPS6594 regulators
regulator: axp20x: Add AXP15060 support
regulator: axp20x: Add support for AXP313a variant
dt-bindings: pfuze100.yaml: Add an entry for interrupts
regulator: stm32-pwr: Fix regulator disabling
...
brings some order to the documentation directory, declutters the top-level
directory, and makes the documentation organization more closely match that
of the source.
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Merge tag 'docs-arm-move' of git://git.lwn.net/linux
Pull arm documentation move from Jonathan Corbet:
"Move the Arm architecture documentation under Documentation/arch/.
This brings some order to the documentation directory, declutters the
top-level directory, and makes the documentation organization more
closely match that of the source"
* tag 'docs-arm-move' of git://git.lwn.net/linux:
dt-bindings: Update Documentation/arm references
docs: update some straggling Documentation/arm references
crypto: update some Arm documentation references
mips: update a reference to a moved Arm Document
arm64: Update Documentation/arm references
arm: update in-source documentation references
arm: docs: Move Arm documentation to Documentation/arch/
Merge series from Biju Das <biju.das.jz@bp.renesas.com>:
This patch series aims to add support for Renesas PMIC RAA215300 and
built-in RTC found on this PMIC device.
The details of PMIC can be found here[1].
Renesas PMIC RAA215300 exposes two separate i2c devices, one for the main
device and another for rtc device.
The Arm documentation has moved to Documentation/arch/arm; update the
last remaining references to match.
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Samuel Holland <samuel@sholland.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> # for pwm
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The previous bugfix caused a warning on 64-bit builds:
drivers/input/touchscreen/ads7846.c:1126:17: warning: cast to smaller integer type 'u32' (aka 'unsigned int') from 'const void *' [-Wvoid-pointer-to-int-cast]
Change the cast back to something that works on both 32-bit and 64-bit
kernels.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306100442.jStknDT1-lkp@intel.com/
Fixes: 8f7913c04f ("Input: ads7846 - Fix usage of match data")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- a fix for unbalanced open count for inhibited input devices
- fixups in Elantech PS/2 and Cyppress TTSP v5 drivers
- a quirk to soc_button_array driver to make it work with
Lenovo Yoga Book X90F / X90L
- a removal of erroneous entry from xpad driver.
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Merge tag 'input-for-v6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- a fix for unbalanced open count for inhibited input devices
- fixups in Elantech PS/2 and Cyppress TTSP v5 drivers
- a quirk to soc_button_array driver to make it work with Lenovo
Yoga Book X90F / X90L
- a removal of erroneous entry from xpad driver
* tag 'input-for-v6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - delete a Razer DeathAdder mouse VID/PID entry
Input: psmouse - fix OOB access in Elantech protocol
Input: soc_button_array - add invalid acpi_index DMI quirk handling
Input: fix open count when closing inhibited device
Input: cyttsp5 - fix array length
device_get_match_data() returns the match data directly, fix
this up and fix the probe crash.
Fixes: 767d83361a ("Input: ads7846 - Convert to use software nodes")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20230606191304.3804174-1-linus.walleij@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Since PM8998/PM660, the power key debounce register was redefined to
support shorter debounce times. On PM8941 the shortest debounce time
(represented by register value 0) was 15625us, on PM8998 the shortest
debounce time is 62us, with the default being 2ms.
Adjust the bit shift to correctly program debounce on PM8998 and newer.
Fixes: 68c581d5e7 ("Input: add Qualcomm PM8941 power key driver")
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20230529-pm8941-pwrkey-debounce-v1-2-c043a6d5c814@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of constantly checking pointer(s) for non-NULL-ness provide
default implementations of trigger() and read() and instantiate them during
pore registration if driver-specific versions were not provided.
Link: https://lore.kernel.org/r/ZGvoqP5PAAsJuky4@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
regmap_set_bits() is equivalent to regmap_update_bits() if mask == val.
The probe function uses regmap_clear_bits() to enable irqs, so
symmetrically make use of regmap_set_bits() to disable them. There is no
semantic difference.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/r/20230605161458.117361-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart from
emitting a warning).
To improve here there is a quest to make the remove callback return void.
In the first step of this quest all drivers are converted to .remove_new()
which already returns void. Eventually after all drivers are converted,
.remove_new() is renamed to .remove().
Before this driver might have returned an error. In this case emit a
warning that tells more about the problem than the generic warning by
the core, and instead of making the remove callback return zero
unconditionally, convert to .remove_new() which is equivalent.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/r/20230605161458.117361-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Nokia 770 is using GPIOs from the global numberspace on the
CBUS node to pass down to the LCD controller. This regresses when we
let the OMAP GPIO driver use dynamic GPIO base.
The Nokia 770 now has dynamic allocation of IRQ numbers, so this
needs to be fixed for it to work.
As this is the only user of LCD MIPID we can easily augment the
driver to use a GPIO descriptor instead and resolve the issue.
The platform data .shutdown() callback wasn't even used in the
code, but we encode a shutdown asserting RESET in the remove()
callback for completeness sake.
The CBUS also has the ADS7846 touchscreen attached.
Populate the devices on the Nokia 770 CBUS I2C using software
nodes instead of platform data quirks. This includes the LCD
and the ADS7846 touchscreen so the conversion just brings the LCD
along with it as software nodes is an all-or-nothing design
pattern.
The ADS7846 has some limited support for using GPIO descriptors,
let's convert it over completely to using device properties and then
fix all remaining boardfile users to provide all platform data using
software nodes.
Dump the of includes and of_match_ptr() in the ADS7846 driver as part
of the job.
Since we have to move ADS7846 over to obtaining the GPIOs it is
using exclusively from descriptors, we provide descriptor tables
for the two remaining in-kernel boardfiles using ADS7846:
- PXA Spitz
- MIPS Alchemy DB1000 development board
It was too hard for me to include software node conversion of
these two remaining users at this time: the spitz is using a
hscync callback in the platform data that would require further
GPIO descriptor conversion of the Spitz, and moving the hsync
callback down into the driver: it will just become too big of
a job, but it can be done separately.
The MIPS Alchemy DB1000 is simply something I cannot test, so take
the easier approach of just providing some GPIO descriptors in
this case as I don't want the patch to grow too intrusive.
As we see that several device trees have incorrect polarity flags
and just expect to bypass the gpiolib polarity handling, fix up
all device trees too, in a separate patch.
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixes: 92bf78b33b ("gpio: omap: use dynamic allocation of base")
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Currently input_grab_device() isn't covered by any tests
Thus, adding a test to cover the cases:
1. The device is grabbed successfully
2. Trying to grab a device that is already grabbed by another input
handle
Signed-off-by: Dana Elfassy <dangel101@gmail.com>
Tested-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20230522215514.722564-1-dangel101@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
While doing my research to improve the xpad device names I noticed
that the 1532:0037 VID/PID seems to be used by the DeathAdder 2013,
so that Razer Sabertooth instance looked wrong and very suspect to
me. I didn't see any mention in the official drivers, either.
After doing more research, it turns out that the xpad list
is used by many other projects (like Steam) as-is [1], this
issue was reported [2] and Valve/Sam Lantinga fixed it [3]:
[1]: dcc5eef0e2/src/joystick/controller_type.h (L251)
[2]: https://steamcommunity.com/app/353380/discussions/0/1743392486228754770/
[3]: https://hg.libsdl.org/SDL/rev/29809f6f0271
(With multiple Internet users reporting similar issues, not linked here)
After not being able to find the correct VID/PID combination anywhere
on the Internet and not receiving any reply from Razer support I did
some additional detective work, it seems like it presents itself as
"Razer Sabertooth Gaming Controller (XBOX360)", code 1689:FE00.
Leaving us with this:
* Razer Sabertooth (1689:fe00)
* Razer Sabertooth Elite (24c6:5d04)
* Razer DeathAdder 2013 (1532:0037) [note: not a gamepad]
So, to sum things up; remove this conflicting/duplicate entry:
{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
As the real/correct one is already present there, even if
the Internet as a whole insists on presenting it as the
Razer Sabertooth Elite, which (by all accounts) is not:
{ 0x1689, 0xfe00, "Razer Sabertooth", 0, XTYPE_XBOX360 },
Actual change in SDL2 referencing this kernel issue:
e5e5416975
For more information of the device, take a look here:
https://github.com/xboxdrv/xboxdrv/pull/59
You can see a lsusb dump here: https://github.com/xboxdrv/xboxdrv/files/76581/Qa6dBcrv.txt
Fixes: f554f619b7 ("Input: xpad - sync device IDs with xboxdrv")
Signed-off-by: Ismael Ferreras Morezuelas <swyterzone@gmail.com>
Reviewed-by: Cameron Gutman <aicommander@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/5c12dbdb-5774-fc68-5c58-ca596383663e@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The Linux kernel is notorious for misspelling X-Box, X-box, XBox or XBOX;
the official spelling is actually just Xbox. Plain and simple.
Tried to respect the existing notes but still following the style guide.
No functional changes intended. This only affects ancillary parts.
Signed-off-by: Ismael Ferreras Morezuelas <swyterzone@gmail.com>
Link: https://lore.kernel.org/r/401b1d94-1348-15fd-b48f-a80e8885c7a4@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
not being declared. We thus need to add HAS_IOPORT as dependency for
those drivers using them.
Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Link: https://lore.kernel.org/r/20230522105049.1467313-16-schnelle@linux.ibm.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Upon receiving a PS/2 command the device and controller are supposed to
stop sending normal data (scancodes or movement packets) and instead
immediately start delivering ACK/NAK and command response. Unfortunately
often EC has an output buffer which may contain latched data by the time
the EC receives a command from the host. The kernel used to ignore such
data, but that may cause "stuck" keys if the data dropped happens to be a
break code or a part of a break code. This occasionally happens, for
example, on Chromebooks when the kernel tries to toggle CapsLock LED on
a keyboard while user releases Alt+Search keyboard shortcut.
Fix this by passing the first non-ACK byte to the normal handler for a
handful of PS/2 commands that are expected to be used during normal device
operation (as opposed to probe/configuration time).
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
Link: https://lore.kernel.org/r/20230511185252.386941-8-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of exposing inner workings of libps2 to drivers such as atkbd and
psmouse, have them define pre-receive and receive callbacks, and provide a
common handler that can be used with underlying serio port.
While at this add kerneldoc to the module.
Link: https://lore.kernel.org/r/ZGK81cxqjr/KS1kA@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When aborting PS/2 command the kernel should [re]set all flags before
waking up waiters, otherwise waiting thread may read obsolete values
of flags.
Reported-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
Link: https://lore.kernel.org/r/20230511185252.386941-6-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
It is not entirely correct that libps2 sets PS2_FLAG_CMD1 after
the device acknowledges each byte sent to the device by the host.
Rework the code so that PS2_FLAG_CMD1 and PS2_FLAG_CMD are set only once,
at the beginning of PS/2 command execution.
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
Link: https://lore.kernel.org/r/20230511185252.386941-4-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When getting unexpected data while waiting for an acknowledgement it does
not matter what command phase is currently executed, and ps2_handle_ack()
should indicate that no further processing is needed for the received data
byte. Remove PS2_FLAG_ACK_CMD and associated handling.
Note that while it is possible to make ps2_handle_ack (and
ps2_handle_repsonse) return void, it will be done when the code will be
converted to common PS/2 interrupt handler later.
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
Link: https://lore.kernel.org/r/20230511185252.386941-3-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In preparation of having unified interrupt handler for PS/2 devices,
instead of attaching instances of psmouse and atkbd structures as serio's
driver data, switch to attaching ps2dev instances.
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Link: https://lore.kernel.org/r/20230511185252.386941-2-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
After commit b8a1a4cd5a ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230517164645.162294-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Split rk808 into a core and an i2c part in preparation for
SPI support.
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> # for RTC
Tested-by: Diederik de Haas <didi.debian@cknow.org> # Rock64, Quartz64 Model A + B
Tested-by: Vincent Legoll <vincent.legoll@gmail.com> # Pine64 QuartzPro64
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230504173618.142075-6-sebastian.reichel@collabora.com
Signed-off-by: Lee Jones <lee@kernel.org>
Some devices have a wrong entry in their button array which points to
a GPIO which is required in another driver, so soc_button_array must
not claim it.
A specific example of this is the Lenovo Yoga Book X90F / X90L,
where the PNP0C40 home button entry points to a GPIO which is not
a home button and which is required by the lenovo-yogabook driver.
Add a DMI quirk table which can specify an ACPI GPIO resource index which
should be skipped; and add an entry for the Lenovo Yoga Book X90F / X90L
to this new DMI quirk table.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230414072116.4497-1-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of hardcoding IRQ trigger type to IRQF_TRIGGER_HIGH, let's
respect the settings specified in the firmware description.
Fixes: e27c729219 ("Input: add driver for ADXL345/346 Digital Accelerometers")
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Link: https://lore.kernel.org/r/20230509203555.549158-1-marex@denx.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some pwm vibrators have a dedicated enable GPIO that needs to be set
high so that the vibrator works. Add support for that optionally.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20230427-hammerhead-vibra-v1-3-e87eeb94da51@z3ntu.xyz
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Make sure all printed messages end with a newline.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Link: https://lore.kernel.org/r/20230427-hammerhead-vibra-v1-2-e87eeb94da51@z3ntu.xyz
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Probe the touch controller driver even if resolution information is not
available. This can happen e.g. in case the touch controller suffered a
failed firmware update and is stuck in bootloader mode.
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20230217025200.203833-1-marex@denx.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The touch controller needs some time to wake-up after setting the wake-up
gpio. Without having a delay after wake-up probing regularly fails in
edt_ft5x06_ts_identify() with an error (i.e. EREMOTEIO) that was caused
by a failed i2c transfer.
The datasheet sets the wake-up time to 5 ms, although it is not entirely
clear.
Signed-off-by: Philipp Puschmann <p.puschmann@pironex.com>
Link: https://lore.kernel.org/r/20230505115823.545803-1-p.puschmann@pironex.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The touchscreen can be put into a deep sleep state that prevents it from
emitting touch irqs. Put the touchscreen into deep sleep during suspend
if it is not marked as a wakeup source.
This also fixes a problem with the touchscreen getting unresponsive after
system resume when a falling edge trigger is used for the interrupt.
When left on during suspend, the touchscreen would pull the interrupt
line down in response to touch events, leaving the interrupt effectively
disabled after resume.
Signed-off-by: Maximilian Weigand <mweigand@mweigand.net>
Reviewed-by: Alistair Francis <alistair@alistair23.me>
Link: https://lore.kernel.org/r/20230504120316.408687-2-mweigand2017@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Because the kernel increments device's open count in input_open_device()
even if device is inhibited, the counter should always be decremented in
input_close_device() to keep it balanced.
Fixes: a181616487 ("Input: Add "inhibited" property")
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Link: https://lore.kernel.org/r/ZFFz0xAdPNSL3PT7@google.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Properly initialize input_device_id structure in
input_test_match_device_id test to make sure it contains no garbage
causing the test to randomly fail.
Fixes: fdefcbdd6f ("Input: Add KUnit tests for some of the input core helper functions")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/ZFLI7T2qZTGJ1UUK@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
input_abs_set_val() can nominally call input_alloc_absinfo() which may
allocate memory with GFP_KERNEL flag. This does not happen when
input_abs_set_val() is called by the input core to set current MT slot when
handling a new input event, but it trips certain static analyzers.
Rearrange the code to access the relevant structures directly.
Reported-by: Teng Qi <starmiku1207184332@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Link: https://lore.kernel.org/r/ZFBg379uuHjf+YEM@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
While KUnit tests that cannot be built as a loadable module must depend
on "KUNIT=y", this is not true for modular tests, where it adds an
unnecessary limitation.
Fix this by relaxing the dependency to "KUNIT".
Fixes: fdefcbdd6f ("Input: Add KUnit tests for some of the input core helper functions")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/483c4f520e4acc6357ebba3e605977b4c56374df.1683022164.git.geert+renesas@glider.be
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
With CONFIG_DEBUG_SLAB=y:
# Subtest: input_core
1..3
input: Test input device as /devices/virtual/input/input1
8<--- cut here ---
Unable to handle kernel paging request at virtual address 6b6b6dd7 when read
...
__lock_acquire from lock_acquire+0x26c/0x300
lock_acquire from _raw_spin_lock_irqsave+0x50/0x64
_raw_spin_lock_irqsave from devres_remove+0x20/0x7c
devres_remove from devres_destroy+0x8/0x24
devres_destroy from input_free_device+0x2c/0x60
input_free_device from kunit_try_run_case+0x70/0x94 [kunit]
Without CONFIG_DEBUG_SLAB=y:
KTAP version 1
# Subtest: input_core
1..3
input: Test input device as /devices/virtual/input/input1
------------[ cut here ]------------
WARNING: CPU: 0 PID: 694 at lib/refcount.c:28 refcount_warn_saturate+0x54/0x100
refcount_t: underflow; use-after-free.
...
Call Trace: [<0037cad4>] dump_stack+0xc/0x10
[<00377614>] __warn+0x7e/0xb4
[<0037768c>] warn_slowpath_fmt+0x42/0x62
[<001eee1c>] refcount_warn_saturate+0x54/0x100
[<000b1d34>] kfree_const+0x0/0x20
[<0036290a>] __kobject_del+0x0/0x6e
[<001eee1c>] refcount_warn_saturate+0x54/0x100
[<00362a1a>] kobject_put+0xa2/0xb6
[<11965770>] kunit_generic_run_threadfn_adapter+0x0/0x1c [kunit]
As per the comments for input_allocate_device() and
input_register_device(), input_free_device() must be called only to free
devices that have not been registered. input_unregister_device()
already calls input_put_device(), thus leading to a use-after-free.
Moreover, the kunit_suite.exit() method is called after every test case,
even on failures. As the test itself already does cleanups in its
failure paths, this may lead to a second use-after-free.
Fix the first issue by dropping the call to input_allocate_device() from
input_test_exit().
Fix the second issue by making the cleanup code conditional on a
successful test.
Fixes: fdefcbdd6f ("Input: Add KUnit tests for some of the input core helper functions")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/957b3b309a44d39fb6e38b2a526b250f69ea3d2c.1683022164.git.geert+renesas@glider.be
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Currently, uinput doesn't use the input_set_timestamp API, so any
event injected using uinput is not accurately timestamped in terms of
measuring when the actual event happened. Hence, call the
input_set_timestamp API from uinput in order to provide a more
accurate sense of time for the event. Propagate only the timestamps
which are a) positive, b) within a pre-defined offset (10 secs) from
the current time, and c) not in the future.
Signed-off-by: Biswarup Pal <biswarupp@google.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Siarhei Vishniakou <svv@google.com>
Link: https://lore.kernel.org/r/20230427000152.1407471-1-biswarupp@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support for touch keys found in some Atmel touch controller
configurations.
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Link: https://lore.kernel.org/r/20230407-atmel_keys-v2-2-92446a4343cb@apitzsch.eu
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The watchdog_timer can schedule tx_timeout_task and watchdog_work
can also arm watchdog_timer. The process is shown below:
----------- timer schedules work ------------
cyttsp4_watchdog_timer() //timer handler
schedule_work(&cd->watchdog_work)
----------- work arms timer ------------
cyttsp4_watchdog_work() //workqueue callback function
cyttsp4_start_wd_timer()
mod_timer(&cd->watchdog_timer, ...)
Although del_timer_sync() and cancel_work_sync() are called in
cyttsp4_remove(), the timer and workqueue could still be rearmed.
As a result, the possible use after free bugs could happen. The
process is shown below:
(cleanup routine) | (timer and workqueue routine)
cyttsp4_remove() | cyttsp4_watchdog_timer() //timer
cyttsp4_stop_wd_timer() | schedule_work()
del_timer_sync() |
| cyttsp4_watchdog_work() //worker
| cyttsp4_start_wd_timer()
| mod_timer()
cancel_work_sync() |
| cyttsp4_watchdog_timer() //timer
| schedule_work()
del_timer_sync() |
kfree(cd) //FREE |
| cyttsp4_watchdog_work() // reschedule!
| cd-> //USE
This patch changes del_timer_sync() to timer_shutdown_sync(),
which could prevent rearming of the timer from the workqueue.
Fixes: 17fb1563d6 ("Input: cyttsp4 - add core driver for Cypress TMA4XX touchscreen devices")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20230421082919.8471-1-duoming@zju.edu.cn
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The cmd array should be initialized with the proper command size and not
with the actual command value that is sent to the touchscreen.
Signed-off-by: Maximilian Weigand <mweigand@mweigand.net>
Reviewed-by: Alistair Francis <alistair@alistair23.me>
Link: https://lore.kernel.org/r/20230501113010.891786-2-mweigand@mweigand.net
Fixes: 5b0c03e24a ("Input: Add driver for Cypress Generation 5 touchscreen")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The removed lines are remnants of the vendor driver and are not used in
the upstream driver.
Signed-off-by: Maximilian Weigand <mweigand@mweigand.net>
Reviewed-by: Alistair Francis <alistair@alistair23.me>
Link: https://lore.kernel.org/r/20230501113010.891786-3-mweigand@mweigand.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- a new driver for Novatek touch controllers
- a new driver for power button for NXP BBNSM
- a skeleton KUnit tests for the input core
- improvements to Xpad game controller driver to support more devices
- improvements to edt-ft5x06, hideep and other drivers
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Merge tag 'input-for-v6.4-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new driver for Novatek touch controllers
- a new driver for power button for NXP BBNSM
- a skeleton KUnit tests for the input core
- improvements to Xpad game controller driver to support more devices
- improvements to edt-ft5x06, hideep and other drivers
* tag 'input-for-v6.4-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (42 commits)
Revert "Input: xpad - fix support for some third-party controllers"
dt-bindings: input: pwm-beeper: convert to dt schema
Input: xpad - fix PowerA EnWired Controller guide button
Input: xpad - add constants for GIP interface numbers
Input: synaptics-rmi4 - fix function name in kerneldoc
Input: raspberrypi-ts - fix refcount leak in rpi_ts_probe
Input: edt-ft5x06 - select REGMAP_I2C
Input: melfas_mip4 - report palm touches
Input: cma3000_d0x - remove unneeded code
Input: edt-ft5x06 - calculate points data length only once
Input: edt-ft5x06 - unify the crc check
Input: edt-ft5x06 - convert to use regmap API
Input: edt-ft5x06 - don't print error messages with dev_dbg()
Input: edt-ft5x06 - remove code duplication
Input: edt-ft5x06 - don't recalculate the CRC
Input: edt-ft5x06 - add spaces to ensure format specification
Input: edt-ft5x06 - remove unnecessary blank lines
Input: edt-ft5x06 - fix indentation
Input: tsc2007 - enable cansleep pendown GPIO
Input: Add KUnit tests for some of the input core helper functions
...
First of all, previously the 16-bit magnitude was written as-is to the
device which actually discarded the upper 8 bits since the device has
8-bit registers only. This meant that a strong_magnitude of 0xFF00 would
result in 0. To correct this shift the strong_magnitude / weak_magnitude
input values so we discard the lower 8 bits and keep the upper bits
instead.
Secondly the RTP mode that is used by default interprets the values as
signed (2s complement), so 0x81 = 0%, 0x00 = 50%, 0x7F = 100%. This
doesn't match the FF_RUMBLE interface at all, so let's tell the device
to interpret the data as unsigned instead which gets us 0x00 = 0% and
0xFF = 100%.
As last change switch ERM to using "Closed-Loop Mode, Unidirectional"
instead of "Open-Loop Mode" since it's recommended by the datasheet
compared to open loop and better matches our use case of 0% - 100%
vibration.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Link: https://lore.kernel.org/r/20230430-drv260x-improvements-v1-4-1fb28b4cc698@z3ntu.xyz
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Linus Torvalds