Commit Graph

6940 Commits

Author SHA1 Message Date
Linus Torvalds 765092e4cd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - several device tree bindings for input devices have been converted to
   yaml

 - dropped no longer used ixp4xx-beeper and CSR Prima2 PWRC drivers

 - analog joystick has been converted to use ktime API and no longer
   warn about low resolution timers

 - a few driver fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (24 commits)
  Input: analog - always use ktime functions
  Input: mms114 - support MMS134S
  Input: elan_i2c - reduce the resume time for controller in Whitebox
  Input: edt-ft5x06 - added case for EDT EP0110M09
  Input: adc-keys - drop bogus __refdata annotation
  Input: Fix spelling mistake in Kconfig "useable" -> "usable"
  Input: Fix spelling mistake in Kconfig "Modul" -> "Module"
  Input: remove dead CSR Prima2 PWRC driver
  Input: adp5589-keys - use the right header
  Input: adp5588-keys - use the right header
  dt-bindings: input: tsc2005: Convert to YAML schema
  Input: ep93xx_keypad - prepare clock before using it
  dt-bindings: input: sun4i-lradc: Add wakeup-source
  dt-bindings: input: Convert Regulator Haptic binding to a schema
  dt-bindings: input: Convert Pixcir Touchscreen binding to a schema
  dt-bindings: input: Convert ChipOne ICN8318 binding to a schema
  Input: pm8941-pwrkey - fix comma vs semicolon issue
  dt-bindings: power: reset: qcom-pon: Convert qcom PON binding to yaml
  dt-bindings: input: pm8941-pwrkey: Convert pm8941 power key binding to yaml
  dt-bindings: power: reset: Change 'additionalProperties' to true
  ...
2021-09-11 09:08:28 -07:00
Guenter Roeck 0c5483a577 Input: analog - always use ktime functions
m68k, mips, s390, and sparc allmodconfig images fail to build with the
following error.

drivers/input/joystick/analog.c:160:2: error:
	#warning Precise timer not defined for this architecture.

Remove architecture specific time handling code and always use ktime
functions to determine time deltas. Also remove the now useless use_ktime
kernel parameter.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Link: https://lore.kernel.org/r/20210907123734.21520-1-linux@roeck-us.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-09-08 23:39:47 -07:00
Linus Walleij ab10867819 Input: mms114 - support MMS134S
The MMS134S like the MMS136 has an event size of 6 bytes.

After this patch, the touchscreen on the Samsung SGH-I407
works fine with PostmarketOS.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210706235951.189289-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-09-06 23:33:26 -07:00
jingle.wu d198b8273e Input: elan_i2c - reduce the resume time for controller in Whitebox
Similar to controllers found Voxel, Delbin, Magpie and Bobba, the one found
in Whitebox does not need to be reset after issuing power-on command, and
skipping reset saves resume time.

Signed-off-by: Jingle Wu <jingle.wu@emc.com.tw>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210907012924.11391-1-jingle.wu@emc.com.tw
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-09-06 22:30:34 -07:00
Oliver Graute 146ea9b679 Input: edt-ft5x06 - added case for EDT EP0110M09
Add Support for EP011M09 Firmware

Signed-off-by: Oliver Graute <oliver.graute@kococonnector.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20210813062110.13950-1-oliver.graute@kococonnector.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-09-05 19:10:11 -07:00
Dmitry Torokhov 8be98d2f2a Merge branch 'next' into for-linus
Prepare input updates for 5.15 merge window.
2021-09-05 18:58:05 -07:00
Geert Uytterhoeven 3e204d6b76 Input: adc-keys - drop bogus __refdata annotation
As the ADC ladder input driver does not have any code or data located in
initmem, there is no need to annotate the adc_keys_driver structure with
__refdata.  Drop the annotation, to avoid suppressing future section
warnings.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/7091e8213602be64826fd689a7337246d218f3b1.1626255421.git.geert+renesas@glider.be
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-09-03 23:49:58 -07:00
Colin Ian King 7ec7c72fbf Input: Fix spelling mistake in Kconfig "useable" -> "usable"
There is a spelling mistake in the Kconfig text. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210705100230.7583-1-colin.king@canonical.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-09-03 23:49:57 -07:00
Colin Ian King ca595ac271 Input: Fix spelling mistake in Kconfig "Modul" -> "Module"
There is a spelling mistake in the Kconfig text. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210704095702.37567-1-colin.king@canonical.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-09-03 23:49:55 -07:00
Linus Torvalds a2d616b935 parisc architecture updates for kernel 5.15:
- Fix a kernel crash when a signal is delivered to bad userspace stack
 - Fix fall-through warnings in math-emu code
 - Increase size of gcc stack frame check
 - Switch coding from 'pci_' to 'dma_' API
 - Make struct parisc_driver::remove() return void
 - Some parisc related Makefile changes
 - Minor cleanups, e.g. change to octal permissions, fix macro collisions,
   fix PMD_ORDER collision, replace spaces with tabs
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Merge tag 'for-5.15/parisc' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc architecture updates from Helge Deller:

 - Fix a kernel crash when a signal is delivered to bad userspace stack

 - Fix fall-through warnings in math-emu code

 - Increase size of gcc stack frame check

 - Switch coding from 'pci_' to 'dma_' API

 - Make struct parisc_driver::remove() return void

 - Some parisc related Makefile changes

 - Minor cleanups, e.g. change to octal permissions, fix macro
   collisions, fix PMD_ORDER collision, replace spaces with tabs

* tag 'for-5.15/parisc' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: math-emu: Fix fall-through warnings
  parisc: fix crash with signals and alloca
  parisc: Fix compile failure when building 64-bit kernel natively
  parisc: ccio-dma.c: Added tab instead of spaces
  parisc/parport_gsc: switch from 'pci_' to 'dma_' API
  parisc: move core-y in arch/parisc/Makefile to arch/parisc/Kbuild
  parisc: switch from 'pci_' to 'dma_' API
  parisc: Make struct parisc_driver::remove() return void
  parisc: remove unused arch/parisc/boot/install.sh and its phony target
  parisc: Rename PMD_ORDER to PMD_TABLE_ORDER
  parisc: math-emu: Avoid "fmt" macro collision
  parisc: Increase size of gcc stack frame check
  parisc: Replace symbolic permissions with octal permissions
2021-09-02 13:16:00 -07:00
Lukas Bulwahn 927c1e56cc Input: remove dead CSR Prima2 PWRC driver
Commit f3a732843a ("ARM: remove sirf prima2/atlas platforms") removes
the config ARCH_SIRF in ./arch/arm/mach-prima2/Kconfig.

Hence, since then, the corresponding CSR Prima2 PWRC Driver is dead code.
Remove this dead driver.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210817072842.8640-1-lukas.bulwahn@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-08-30 15:55:19 -07:00
Linus Walleij 1c6aacecea Input: adp5589-keys - use the right header
This keyboard driver is implementing a GPIO driver, so it need
to include <linux/gpio/driver.h> and not the legacy <linux/gpio.h>
header.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Link: https://lore.kernel.org/r/20210816232707.485031-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-08-30 15:55:18 -07:00
Linus Walleij 9d9bfd180c Input: adp5588-keys - use the right header
This keyboard driver is implementing a GPIO driver, so it need
to include <linux/gpio/driver.h> and not the legacy <linux/gpio.h>
header.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210820222958.57238-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-08-30 15:55:15 -07:00
Uwe Kleine-König 87875c1084 parisc: Make struct parisc_driver::remove() return void
The caller of this function (parisc_driver_remove() in
arch/parisc/kernel/drivers.c) ignores the return value, so better don't
return any value at all to not wake wrong expectations in driver authors.

The only function that could return a non-zero value before was
ipmi_parisc_remove() which returns the return value of
ipmi_si_remove_by_dev(). Make this function return void, too, as for all
other callers the value is ignored, too.

Also fold in a small checkpatch fix for:

WARNING: Unnecessary space before function pointer arguments
+	void (*remove) (struct parisc_device *dev);

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> (for drivers/input)
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by:  Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Acked-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2021-08-30 10:18:25 +02:00
Alexander Sverdlin 62e4fe9f60 Input: ep93xx_keypad - prepare clock before using it
Use clk_prepare_enable()/clk_disable_unprepare() in preparation for switch
to Common Clock Framework.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/20210613233041.128961-4-alexander.sverdlin@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-08-29 19:15:30 -07:00
Dmitry Torokhov 5af9f79b41 Input: pm8941-pwrkey - fix comma vs semicolon issue
There is absolutely no reason to use comma operator in this code, 2
separate statements make much more sense.

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/YPsa1qCBn/SAmE5x@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-07-23 17:37:14 -07:00
Uwe Kleine-König fc7a6209d5 bus: Make remove callback return void
The driver core ignores the return value of this callback because there
is only little it can do when a device disappears.

This is the final bit of a long lasting cleanup quest where several
buses were converted to also return void from their remove callback.
Additionally some resource leaks were fixed that were caused by drivers
returning an error code in the expectation that the driver won't go
away.

With struct bus_type::remove returning void it's prevented that newly
implemented buses return an ignored error code and so don't anticipate
wrong expectations for driver authors.

Reviewed-by: Tom Rix <trix@redhat.com> (For fpga)
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com> (For drivers/s390 and drivers/vfio)
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> (For ARM, Amba and related parts)
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Chen-Yu Tsai <wens@csie.org> (for sunxi-rsb)
Acked-by: Pali Rohár <pali@kernel.org>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org> (for media)
Acked-by: Hans de Goede <hdegoede@redhat.com> (For drivers/platform)
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Juergen Gross <jgross@suse.com> (For xen)
Acked-by: Lee Jones <lee.jones@linaro.org> (For mfd)
Acked-by: Johannes Thumshirn <jth@kernel.org> (For mcb)
Acked-by: Johan Hovold <johan@kernel.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> (For slimbus)
Acked-by: Kirti Wankhede <kwankhede@nvidia.com> (For vfio)
Acked-by: Maximilian Luz <luzmaximilian@gmail.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> (For ulpi and typec)
Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> (For ipack)
Acked-by: Geoff Levand <geoff@infradead.org> (For ps3)
Acked-by: Yehezkel Bernat <YehezkelShB@gmail.com> (For thunderbolt)
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> (For intel_th)
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> (For pcmcia)
Acked-by: Rafael J. Wysocki <rafael@kernel.org> (For ACPI)
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> (rpmsg and apr)
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> (For intel-ish-hid)
Acked-by: Dan Williams <dan.j.williams@intel.com> (For CXL, DAX, and NVDIMM)
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> (For isa)
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (For firewire)
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> (For hid)
Acked-by: Thorsten Scherer <t.scherer@eckelmann.de> (For siox)
Acked-by: Sven Van Asbroeck <TheSven73@gmail.com> (For anybuss)
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> (For MMC)
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Finn Thain <fthain@linux-m68k.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210713193522.1770306-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21 11:53:42 +02:00
Dmitry Torokhov 7d3370e506 Revert "Input: serio - make write method mandatory"
This reverts commit 81c7c0a350. The idea
to make write method mandatory was flawed as several client drivers
(such as atkbd) check for presence of write() method to adjust behavior
of the driver.

Reported-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-07-20 21:48:35 -07:00
Andy Shevchenko 133b6558c7 Input: parkbd - switch to use module_parport_driver()
Switch to use module_parport_driver() to reduce boilerplate code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210616140432.39406-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-07-19 14:59:36 -07:00
Dmitry Torokhov 81c7c0a350 Input: serio - make write method mandatory
Given that all serio drivers except one implement write() method
let's make it mandatory to avoid testing for its presence whenever
we attempt to use it.

Link: https://lore.kernel.org/r/YFgUxG/TljMuVeQ3@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-07-19 14:35:21 -07:00
Linus Walleij 9aa75914e5 Input: ixp4xx-beeper - delete driver
The NSLU2 has been migrated to devicetree and there we use
the gpio-beeper.c driver instead, the boardfile will be deleted
for kernel v5.15 so drop this custom and now unneeded driver.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210714115028.916360-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-07-19 14:32:10 -07:00
Dmitry Torokhov 320424c7d4 Linux 5.13
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Merge tag 'v5.13' into next

Sync up with the mainline to get the latest parport API.
2021-07-18 18:56:58 -07:00
Linus Torvalds dcf3c935dd This pull request contains the following changes for UML:
- Support for optimized routines based on the host CPU
 - Support for PCI via virtio
 - Various fixes
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Merge tag 'for-linus-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

Pull UML updates from Richard Weinberger:

 - Support for optimized routines based on the host CPU

 - Support for PCI via virtio

 - Various fixes

* tag 'for-linus-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: remove unneeded semicolon in um_arch.c
  um: Remove the repeated declaration
  um: fix error return code in winch_tramp()
  um: fix error return code in slip_open()
  um: Fix stack pointer alignment
  um: implement flush_cache_vmap/flush_cache_vunmap
  um: add a UML specific futex implementation
  um: enable the use of optimized xor routines in UML
  um: Add support for host CPU flags and alignment
  um: allow not setting extra rpaths in the linux binary
  um: virtio/pci: enable suspend/resume
  um: add PCI over virtio emulation driver
  um: irqs: allow invoking time-travel handler multiple times
  um: time-travel/signals: fix ndelay() in interrupt
  um: expose time-travel mode to userspace side
  um: export signals_enabled directly
  um: remove unused smp_sigio_handler() declaration
  lib: add iomem emulation (logic_iomem)
  um: allow disabling NO_IOMEM
2021-07-09 10:19:13 -07:00
Linus Torvalds 383df634f1 More fallthrough fixes for Clang for 5.14-rc1
Hi Linus,
 
 Please, pull the following patches that fix many fall-through warnings
 when building with Clang 12.0.0 and this[1] change reverted. Notice
 that in order to enable -Wimplicit-fallthrough for Clang, such change[1]
 is meant to be reverted at some point. So, these patches help to move
 in that direction.
 
 Thanks!
 
 [1] commit e2079e93f5 ("kbuild: Do not enable -Wimplicit-fallthrough for clang for now")
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Merge tag 'Wimplicit-fallthrough-clang-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull more fallthrough fixes from Gustavo Silva:
 "Fix maore fall-through warnings when building the kernel with clang
  and '-Wimplicit-fallthrough'"

* tag 'Wimplicit-fallthrough-clang-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  Input: Fix fall-through warning for Clang
  scsi: aic94xx: Fix fall-through warning for Clang
  i3c: master: cdns: Fix fall-through warning for Clang
  net/mlx4: Fix fall-through warning for Clang
2021-07-07 11:03:04 -07:00
Gustavo A. R. Silva f1469e568b Input: Fix fall-through warning for Clang
In preparation to enable -Wimplicit-fallthrough for Clang, fix a
warning by explicitly adding a fallthrough; statement.

Notice that this seems to be a Duff device for performance[1]. So,
although the code looks a bit _funny_, I didn't want to refactor
or modify it beyond merely adding a fallthrough marking, which
might be the least disruptive way to fix this issue.

[1] https://www.drdobbs.com/a-reusable-duff-device/184406208

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2021-07-06 16:26:17 -05:00
Linus Torvalds c932ed0adb TTY / Serial patches for 5.14-rc1
Here is the big set of tty and serial driver patches for 5.14-rc1.
 
 A bit more than normal, but nothing major, lots of cleanups.  Highlights
 are:
 	- lots of tty api cleanups and mxser driver cleanups from Jiri
 	- build warning fixes
 	- various serial driver updates
 	- coding style cleanups
 	- various tty driver minor fixes and updates
 	- removal of broken and disable r3964 line discipline (finally!)
 
 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 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial updates from Greg KH:
 "Here is the big set of tty and serial driver patches for 5.14-rc1.

  A bit more than normal, but nothing major, lots of cleanups.
  Highlights are:

   - lots of tty api cleanups and mxser driver cleanups from Jiri

   - build warning fixes

   - various serial driver updates

   - coding style cleanups

   - various tty driver minor fixes and updates

   - removal of broken and disable r3964 line discipline (finally!)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (227 commits)
  serial: mvebu-uart: remove unused member nb from struct mvebu_uart
  arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
  dt-bindings: mvebu-uart: fix documentation
  serial: mvebu-uart: correctly calculate minimal possible baudrate
  serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
  serial: mvebu-uart: fix calculation of clock divisor
  tty: make linux/tty_flip.h self-contained
  serial: Prefer unsigned int to bare use of unsigned
  serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs
  serial: qcom_geni_serial: use DT aliases according to DT bindings
  Revert "tty: serial: Add UART driver for Cortina-Access platform"
  tty: serial: Add UART driver for Cortina-Access platform
  MAINTAINERS: add me back as mxser maintainer
  mxser: Documentation, fix typos
  mxser: Documentation, make the docs up-to-date
  mxser: Documentation, remove traces of callout device
  mxser: introduce mxser_16550A_or_MUST helper
  mxser: rename flags to old_speed in mxser_set_serial_info
  mxser: use port variable in mxser_set_serial_info
  mxser: access info->MCR under info->slock
  ...
2021-07-05 14:08:24 -07:00
Linus Torvalds 1f89a590b2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - a new driver for SparkFun Qwiic Joystick

 - pm8941-pwrkey driver now supports PMK8350

 - a bunch of assorted driver fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (44 commits)
  Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
  Input: hideep - fix the uninitialized use in hideep_nvm_unlock()
  Input: trackpoint - use kobj_to_dev()
  Input: atkbd - use kobj_to_dev()
  Input: tsc200x-core - use kobj_to_dev()
  Input: ims-pcu - use kobj_to_dev()
  Input: cros_ec_keyb - use kobj_to_dev() API
  dt-bindings: input: touchscreen: st1232: Convert to json-schema
  Input: i8042 - fix typos in comments
  Input: add SparkFun Qwiic Joystick driver
  dt-bindings: Add vendor prefix and bindings for Qwiic Joystick
  Input: cy8ctmg110_ts - switch to using gpiod API
  Input: cy8ctmg110_ts - switch to using managed resources
  Input: cy8ctmg110_ts - use endian helpers when converting data on wire
  Input: cy8ctmg110_ts - let I2C core configure wake interrupt
  Input: cy8ctmg110_ts - do not hardcode as wakeup source
  Input: cy8ctmg110_ts - do not hard code interrupt trigger
  Input: cy8ctmg110_ts - rely on platform code to supply interrupt
  Input: resistive-adc-touch - fix uninitialized variable 'press'
  Input: pm8941-pwrkey - add support for PMK8350 PON_HLOS PMIC peripheral
  ...
2021-07-05 11:42:45 -07:00
Dmitry Torokhov 818b265889 Merge branch 'next' into for-linus
Prepare input updates for 5.14 merge window.
2021-07-04 23:05:31 -07:00
Alexander Larkin f8f84af5da Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
Even though we validate user-provided inputs we then traverse past
validated data when applying the new map. The issue was originally
discovered by Murray McAllister with this simple POC (if the following
is executed by an unprivileged user it will instantly panic the system):

int main(void) {
	int fd, ret;
	unsigned int buffer[10000];

	fd = open("/dev/input/js0", O_RDONLY);
	if (fd == -1)
		printf("Error opening file\n");

	ret = ioctl(fd, JSIOCSBTNMAP & ~IOCSIZE_MASK, &buffer);
	printf("%d\n", ret);
}

The solution is to traverse internal buffer which is guaranteed to only
contain valid date when constructing the map.

Fixes: 182d679b22 ("Input: joydev - prevent potential read overflow in ioctl")
Fixes: 999b874f4a ("Input: joydev - validate axis/button maps before clobbering current ones")
Reported-by: Murray McAllister <murray.mcallister@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Alexander Larkin <avlarkin82@gmail.com>
Link: https://lore.kernel.org/r/20210620120030.1513655-1-avlarkin82@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-07-04 23:02:10 -07:00
Linus Torvalds 776ba3ad65 platform-drivers-x86 for v5.14-1
Highlights:
  - New think-lmi driver adding support for changing BIOS settings from
    within Linux using the standard firmware-attributes class sysfs API
  - MS Surface aggregator-cdev now also supports forwarding events to
    user-space (for debugging / new driver development purposes only)
  - New intel_skl_int3472 driver this provides the necessary glue to
    translate ACPI table information to GPIOs, regulators, etc. for
    camera sensors on Intel devices with IPU3 attached MIPI cameras
  - A whole bunch of other fixes + device-specific quirk additions
  - New devm_work_autocancel() devm-helpers.h function
 
 Note this also contains merges of the following immutable branches/tags
 shared with other subsystems:
  - platform-drivers-x86-goodix-v5.14-1
  - intel-gpio-v5.14-1
  - linux-pm/acpi-scan
  - devm-helpers-v5.14-1
 
 The following is an automated git shortlog grouped by driver:
 
 ACPI:
  -  scan: initialize local variable to avoid garbage being returned
  -  scan: Add function to fetch dependent of ACPI device
  -  scan: Extend acpi_walk_dep_device_list()
  -  scan: Rearrange dep_unmet initialization
 
 Add intel_skl_int3472 driver:
  - Add intel_skl_int3472 driver
 
 ISST:
  -  Use numa node id for cpu pci dev mapping
  -  Optimize CPU to PCI device mapping
 
 Input:
  -  goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c
 
 MAINTAINERS:
  -  Update IRC link for Surface System Aggregator subsystem
  -  Update info for telemetry
 
 Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans:
  - Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans
 
 Merge tag 'devm-helpers-v5.14-1' into review-hans:
  - Merge tag 'devm-helpers-v5.14-1' into review-hans
 
 Merge tag 'intel-gpio-v5.14-1' into review-hans:
  - Merge tag 'intel-gpio-v5.14-1' into review-hans
 
 Merge tag 'platform-drivers-x86-goodix-v5.14-1' into review-hans:
  - Merge tag 'platform-drivers-x86-goodix-v5.14-1' into review-hans
 
 Remove "default n" entries:
  - Remove "default n" entries
 
 Rename hp-wireless to wireless-hotkey:
  - Rename hp-wireless to wireless-hotkey
 
 asus-nb-wmi:
  -  Revert "add support for ASUS ROG Zephyrus G14 and G15"
  -  Revert "Drop duplicate DMI quirk structures"
 
 dcdbas:
  -  drop unneeded assignment in host_control_smi()
 
 dell-privacy:
  -  Add support for Dell hardware privacy
 
 dell-wmi:
  -  Rename dell-wmi.c to dell-wmi-base.c
 
 dell-wmi-sysman:
  -  Change user experience when Admin/System Password is modified
  -  fw_attr_inuse can be static
  -  Use firmware_attributes_class helper
  -  Make populate_foo_data functions more robust
 
 dell-wmi-sysman/think-lmi:
  -  Make fw_attr_class global static
 
 devm-helpers:
  -  Add resource managed version of work init
 
 docs:
  -  driver-api: Update Surface Aggregator user-space interface documentation
 
 extcon:
  -  extcon-max8997: Simplify driver using devm
  -  extcon-max8997: Fix IRQ freeing at error path
  -  extcon-max77693.c: Fix potential work-queue cancellation race
  -  extcon-max14577: Fix potential work-queue cancellation race
 
 firmware_attributes_class:
  -  Create helper file for handling firmware-attributes class registration events
 
 gpio:
  -  wcove: Split error handling for CTRL and IRQ registers
  -  wcove: Unify style of to_reg() with to_ireg()
  -  wcove: Use IRQ hardware number getter instead of direct access
  -  crystalcove: remove platform_set_drvdata() + cleanup probe
 
 gpiolib:
  -  acpi: Add acpi_gpio_get_io_resource()
  -  acpi: Introduce acpi_get_and_request_gpiod() helper
 
 hdaps:
  -  Constify static attribute_group struct
 
 ideapad-laptop:
  -  Ignore VPC event bit 10
 
 intel_cht_int33fe:
  -  Move to its own subfolder
  -  Correct "displayport" fwnode reference
 
 intel_ips:
  -  fix set but unused warning in read_mgtv
 
 intel_pmt_crashlog:
  -  Constify static attribute_group struct
 
 intel_skl_int3472:
  -  Uninitialized variable in skl_int3472_handle_gpio_resources()
  -  Move to intel/ subfolder
  -  Provide skl_int3472_unregister_clock()
  -  Provide skl_int3472_unregister_regulator()
  -  Use ACPI GPIO resource directly
  -  Fix dependencies (drop CLKDEV_LOOKUP)
  -  Free ACPI device resources after use
 
 mfd:
  -  tps68470: Remove tps68470 MFD driver
 
 platform/mellanox:
  -  mlxreg-hotplug: Revert "move to use request_irq by IRQF_NO_AUTOEN flag"
 
 platform/surface:
  -  aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_packet_layer.c
  -  aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_request_layer.c
  -  aggregator: Drop unnecessary variable initialization
  -  aggregator: Do not return uninitialized value
  -  aggregator_cdev: Add lockdep support
  -  aggregator_cdev: Allow enabling of events from user-space
  -  aggregator_cdev: Add support for forwarding events to user-space
  -  aggregator: Update copyright
  -  aggregator: Allow enabling of events without notifiers
  -  aggregator: Allow registering notifiers without enabling events
  -  dtx: Add missing mutex_destroy() call in failure path
  -  aggregator: Fix event disable function
  -  aggregator_registry: Consolidate node groups for 5th- and 6th-gen devices
  -  aggregator_registry: Add support for 13" Intel Surface Laptop 4
  -  aggregator_registry: Update comments for 15" AMD Surface Laptop 4
 
 samsung-laptop:
  -  set debugfs blobs to read only
  -  use octal numbers for rwx file permissions
 
 tc1100-wmi:
  -  Constify static attribute_group struct
 
 think-lmi:
  -  Move kfree(setting->possible_values) to tlmi_attr_setting_release()
  -  Split current_value to reflect only the value
  -  Fix issues with duplicate attributes
  -  Return EINVAL when kbdlang gets set to a 0 length string
  -  Add missing MODULE_DEVICE_TABLE
  -  Avoid potential read before start of the buffer
  -  Fix check for admin password being set
  -  Add WMI interface support on Lenovo platforms
 
 thinkpad-lmi:
  -  Remove unused display_name member from struct tlmi_pwd_setting
 
 thinkpad_acpi:
  -  Add X1 Carbon Gen 9 second fan support
  -  Fix inconsistent indenting
 
 tools/power/x86/intel-speed-select:
  -  v1.10 release
  -  Fix uncore memory frequency display
 
 toshiba_acpi:
  -  Fix missing error code in toshiba_acpi_setup_keyboard()
 
 toshiba_haps:
  -  Fix missing newline in pr_debug call in toshiba_haps_notify
 
 touchscreen_dmi:
  -  Fix Chuwi Hi10 Pro comment
  -  Add info for the Goodix GT912 panel of TM800A550L tablets
  -  Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets
 
 x86/platform/uv:
  -  Constify static attribute_group struct
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Merge tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:
 "Highlights:

   - New think-lmi driver adding support for changing Lenovo Thinkpad
     BIOS settings from within Linux using the standard firmware-
     attributes class sysfs API

   - MS Surface aggregator-cdev now also supports forwarding events to
     user-space (for debugging / new driver development purposes only)

   - New intel_skl_int3472 driver this provides the necessary glue to
     translate ACPI table information to GPIOs, regulators, etc. for
     camera sensors on Intel devices with IPU3 attached MIPI cameras

   - A whole bunch of other fixes + device-specific quirk additions

   - New devm_work_autocancel() devm-helpers.h function"

* tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (83 commits)
  platform/x86: dell-wmi-sysman: Change user experience when Admin/System Password is modified
  platform/x86: intel_skl_int3472: Uninitialized variable in skl_int3472_handle_gpio_resources()
  platform/x86: think-lmi: Move kfree(setting->possible_values) to tlmi_attr_setting_release()
  platform/x86: think-lmi: Split current_value to reflect only the value
  platform/x86: think-lmi: Fix issues with duplicate attributes
  platform/x86: think-lmi: Return EINVAL when kbdlang gets set to a 0 length string
  platform/x86: intel_cht_int33fe: Move to its own subfolder
  platform/x86: intel_skl_int3472: Move to intel/ subfolder
  platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_clock()
  platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_regulator()
  platform/x86: intel_skl_int3472: Use ACPI GPIO resource directly
  platform/x86: intel_skl_int3472: Fix dependencies (drop CLKDEV_LOOKUP)
  platform/x86: intel_skl_int3472: Free ACPI device resources after use
  platform/x86: Remove "default n" entries
  platform/x86: ISST: Use numa node id for cpu pci dev mapping
  platform/x86: ISST: Optimize CPU to PCI device mapping
  tools/power/x86/intel-speed-select: v1.10 release
  tools/power/x86/intel-speed-select: Fix uncore memory frequency display
  extcon: extcon-max8997: Simplify driver using devm
  extcon: extcon-max8997: Fix IRQ freeing at error path
  ...
2021-06-30 11:15:39 -07:00
Yizhuo Zhai cac7100d4c Input: hideep - fix the uninitialized use in hideep_nvm_unlock()
Inside function hideep_nvm_unlock(), variable "unmask_code" could
be uninitialized if hideep_pgm_r_reg() returns error, however, it
is used in the later if statement after an "and" operation, which
is potentially unsafe.

Signed-off-by: Yizhuo <yzhai003@ucr.edu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-19 22:36:28 -07:00
YueHaibing eacacdb5fc Input: trackpoint - use kobj_to_dev()
Use kobj_to_dev() instead of container_of()

Generated by: scripts/coccinelle/api/kobj_to_dev.cocci

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210607122722.36736-1-yuehaibing@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-19 22:36:26 -07:00
YueHaibing 50221b0b68 Input: atkbd - use kobj_to_dev()
Use kobj_to_dev() instead of container_of()

Generated by: scripts/coccinelle/api/kobj_to_dev.cocci

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210607122653.33784-1-yuehaibing@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-19 22:36:25 -07:00
YueHaibing 6ffd4c7964 Input: tsc200x-core - use kobj_to_dev()
Use kobj_to_dev() instead of container_of()

Generated by: scripts/coccinelle/api/kobj_to_dev.cocci

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210607122451.36708-1-yuehaibing@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-19 22:36:23 -07:00
YueHaibing f519f78c7e Input: ims-pcu - use kobj_to_dev()
Use kobj_to_dev() instead of container_of()

Generated by: scripts/coccinelle/api/kobj_to_dev.cocci

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210607122533.10608-1-yuehaibing@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-19 22:36:21 -07:00
zhouchuangao 25531d612b Input: cros_ec_keyb - use kobj_to_dev() API
Use kobj_to_dev() API instead of container_of().

Signed-off-by: zhouchuangao <zhouchuangao@vivo.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1624025283-56360-1-git-send-email-zhouchuangao@vivo.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-19 22:36:19 -07:00
Tyson Moore c2d7ed9d68 Input: i8042 - fix typos in comments
This trivial patch fixes two spelling typos in i8042.c:

- 'i8042_unlock_ship()' to 'i8042_unlock_chip()'
- 'i8042_controller init' to 'i8042_controller_init'

Signed-off-by: Tyson Moore <tyson@tyson.me>
Link: https://lore.kernel.org/r/20210612060753.28968-1-tyson@tyson.me
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-18 21:28:22 -07:00
Oleh Kravchenko 552e4047f3 Input: add SparkFun Qwiic Joystick driver
A simple analog joystick built on Low Power ATtiny85 Microcontroller.
Directional movements are measured with two 10 kΩ potentiometers
connected with a gimbal mechanism that separates the horizontal and
vertical movements. This joystick also has a select button that is actuated
when the joystick is pressed down.

Input events polled over the I2C bus.

Product page:
https://www.sparkfun.com/products/15168
Firmware and hardware sources:
https://github.com/sparkfun/Qwiic_Joystick

Tested on RPi4B and O4-iMX-NANO boards.

Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Reviewed-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20210608223130.16830-2-oleg@kaa.org.ua
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-18 21:28:20 -07:00
Johannes Berg 0bbadafdc4 um: allow disabling NO_IOMEM
Adjust the kconfig a little to allow disabling NO_IOMEM in UML. To
make an "allyesconfig" with CONFIG_NO_IOMEM=n build, adjust a few
Kconfig things elsewhere and add dummy asm/fb.h and asm/vga.h files.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2021-06-17 21:44:50 +02:00
Randy Dunlap c1367ee016 m68k: atari: Fix ATARI_KBD_CORE kconfig unmet dependency warning
Since the code for ATARI_KBD_CORE does not use drivers/input/keyboard/
code, just move ATARI_KBD_CORE to arch/m68k/Kconfig.machine to remove
the dependency on INPUT_KEYBOARD.

Removes this kconfig warning:

    WARNING: unmet direct dependencies detected for ATARI_KBD_CORE
      Depends on [n]: !UML && INPUT [=y] && INPUT_KEYBOARD [=n]
      Selected by [y]:
      - MOUSE_ATARI [=y] && !UML && INPUT [=y] && INPUT_MOUSE [=y] && ATARI [=y]

Fixes: c04cb856e2 ("m68k: Atari keyboard and mouse support.")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Suggested-by: Michael Schmitz <schmitzmic@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20210527001251.8529-1-rdunlap@infradead.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2021-06-07 16:28:51 +02:00
Dmitry Torokhov 83b41248ed Input: cy8ctmg110_ts - switch to using gpiod API
Instead of legacy gpio API let's use newer gpiod API. This also allows us
to get rid of platform data.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-7-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-05 20:34:16 -07:00
Dmitry Torokhov 4e5220cb8e Input: cy8ctmg110_ts - switch to using managed resources
This simplifies error handling paths and allows to get rid of
cy8ctmg110_remove() method.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-6-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-05 20:34:14 -07:00
Dmitry Torokhov 1c68b7cfd1 Input: cy8ctmg110_ts - use endian helpers when converting data on wire
Switch to using be16_to_cpup() instead of shifting and combining data by
hand.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-5-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-05 20:34:12 -07:00
Dmitry Torokhov 172b07a6ea Input: cy8ctmg110_ts - let I2C core configure wake interrupt
I2C core already configures interrupt as wakeup source when device is
registered using I2C_CLIENT_WAKE flag, so let's rely on it instead of
configuring it ourselves.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-4-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-05 20:34:11 -07:00
Dmitry Torokhov 2a15cebb8b Input: cy8ctmg110_ts - do not hardcode as wakeup source
Let platform specify whether the controller should be a wakeup source
by registering as I2C_CLIENT_WAKE.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-3-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-05 20:34:09 -07:00
Dmitry Torokhov 9a9b1a7b2b Input: cy8ctmg110_ts - do not hard code interrupt trigger
Rely on the platform to set up interrupt polarity/type properly instead
of hard-coding falling edge.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-2-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-05 20:34:08 -07:00
Dmitry Torokhov 6abee58203 Input: cy8ctmg110_ts - rely on platform code to supply interrupt
Instead of using platform data to specify GPIO that is used as interrupt
source, rely on the platform and I2C core to set it up properly.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210603043726.3793876-1-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-05 20:34:06 -07:00
Colin Ian King 6cdc1ef84e Input: resistive-adc-touch - fix uninitialized variable 'press'
In the case where st->ch_map[GRTS_CH_PRESSURE] < GRTS_MAX_CHANNELS is false
and also st->ch_map[GRTS_CH_Z1] < GRTS_MAX_CHANNELS is false the variable
press is not initialized and contains garbage. In this situation
st->pressure is also false, so we do not actually use press value, but
it is impossible for the compiler to realize this, and it emits
"uninitialized variable" warning. Fix this by initializing press
to 0 and allows us to also remove an else clause that sets press to 0.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 60b7db914d ("Input: resistive-adc-touch - rework mapping of channels")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210603220809.155118-1-colin.king@canonical.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-05 16:41:08 -07:00
David Collins 2fcbda9a82 Input: pm8941-pwrkey - add support for PMK8350 PON_HLOS PMIC peripheral
On Qualcomm Technologies, Inc. PMIC PMK8350, the PON peripheral
is split into two peripherals: PON_HLOS and PON_PBS.  The
application processor only has write access to PON_HLOS which
limits it to only receiving PON interrupts.

Add support for the PMK8350 PON_HLOS peripheral so that its
KPDPWR_N and RESIN_N interrupts can be used to detect key
presses.

Signed-off-by: David Collins <collinsd@codeaurora.org>
Signed-off-by: satya priya <skakit@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1620630064-16354-2-git-send-email-skakit@codeaurora.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-01 21:35:27 -07:00
Stephan Gerhold df4c40f484 Input: edt-ft5x06 - add support for iovcc-supply
At the moment, the edt-ft5x06 driver can control a single regulator
("vcc"). However, some FocalTech touch controllers have an additional
IOVCC pin that should be supplied with the digital I/O voltage.

The I/O voltage might be provided by another regulator that should also
be kept on. Otherwise, the touchscreen can randomly stop functioning if
the regulator is turned off because no other components still require it.

Implement (optional) support for also enabling an "iovcc-supply".
The datasheet specifies a delay of ~ 10us before enabling VDD/VCC
after IOVCC is enabled, so make sure to enable IOVCC first.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210510193108.50178-2-stephan@gerhold.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-06-01 21:35:24 -07:00