Commit Graph

5537 Commits

Author SHA1 Message Date
KT Liao a2eaf299d1 Input: elan_i2c - add support for fetching chip type on newer hardware
Newer Elantech hardware requires different way of fetching chip type and
version data.

Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-11 17:44:23 -07:00
Dmitry Torokhov c5928551fd Input: elan_i2c - check if device is there before really probing
Before trying to properly initialize the touchpad and generate bunch of
errors, let's first see it there is anything at the given address. If we
get error, fail silently with -ENXIO.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-11 17:41:53 -07:00
Arnd Bergmann 3af9256150 Input: cros_ec_keyb - remove extraneous 'const'
gcc-7 warns about 'const SIMPLE_DEV_PM_OPS', as that macro already contains
a 'const' keyword:

drivers/input/keyboard/cros_ec_keyb.c:663:14: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
 static const SIMPLE_DEV_PM_OPS(cros_ec_keyb_pm_ops, NULL, cros_ec_keyb_resume);

This removes the extra one.

Fixes: 6af6dc2d2a ("input: Add ChromeOS EC keyboard driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-11 17:41:01 -07:00
Linus Torvalds 291b38a756 Annotation of module parameters that specify device settings
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Merge tag 'hwparam-20170420' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull hw lockdown support from David Howells:
 "Annotation of module parameters that configure hardware resources
  including ioports, iomem addresses, irq lines and dma channels.

  This allows a future patch to prohibit the use of such module
  parameters to prevent that hardware from being abused to gain access
  to the running kernel image as part of locking the kernel down under
  UEFI secure boot conditions.

  Annotations are made by changing:

        module_param(n, t, p)
        module_param_named(n, v, t, p)
        module_param_array(n, t, m, p)

  to:

        module_param_hw(n, t, hwtype, p)
        module_param_hw_named(n, v, t, hwtype, p)
        module_param_hw_array(n, t, hwtype, m, p)

  where the module parameter refers to a hardware setting

  hwtype specifies the type of the resource being configured. This can
  be one of:

        ioport          Module parameter configures an I/O port
        iomem           Module parameter configures an I/O mem address
        ioport_or_iomem Module parameter could be either (runtime set)
        irq             Module parameter configures an I/O port
        dma             Module parameter configures a DMA channel
        dma_addr        Module parameter configures a DMA buffer address
        other           Module parameter configures some other value

  Note that the hwtype is compile checked, but not currently stored (the
  lockdown code probably won't require it). It is, however, there for
  future use.

  A bonus is that the hwtype can also be used for grepping.

  The intention is for the kernel to ignore or reject attempts to set
  annotated module parameters if lockdown is enabled. This applies to
  options passed on the boot command line, passed to insmod/modprobe or
  direct twiddling in /sys/module/ parameter files.

  The module initialisation then needs to handle the parameter not being
  set, by (1) giving an error, (2) probing for a value or (3) using a
  reasonable default.

  What I can't do is just reject a module out of hand because it may
  take a hardware setting in the module parameters. Some important
  modules, some ipmi stuff for instance, both probe for hardware and
  allow hardware to be manually specified; if the driver is aborts with
  any error, you don't get any ipmi hardware.

  Further, trying to do this entirely in the module initialisation code
  doesn't protect against sysfs twiddling.

  [!] Note that in and of itself, this series of patches should have no
      effect on the the size of the kernel or code execution - that is
      left to a patch in the next series to effect. It does mark
      annotated kernel parameters with a KERNEL_PARAM_FL_HWPARAM flag in
      an already existing field"

* tag 'hwparam-20170420' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: (38 commits)
  Annotate hardware config module parameters in sound/pci/
  Annotate hardware config module parameters in sound/oss/
  Annotate hardware config module parameters in sound/isa/
  Annotate hardware config module parameters in sound/drivers/
  Annotate hardware config module parameters in fs/pstore/
  Annotate hardware config module parameters in drivers/watchdog/
  Annotate hardware config module parameters in drivers/video/
  Annotate hardware config module parameters in drivers/tty/
  Annotate hardware config module parameters in drivers/staging/vme/
  Annotate hardware config module parameters in drivers/staging/speakup/
  Annotate hardware config module parameters in drivers/staging/media/
  Annotate hardware config module parameters in drivers/scsi/
  Annotate hardware config module parameters in drivers/pcmcia/
  Annotate hardware config module parameters in drivers/pci/hotplug/
  Annotate hardware config module parameters in drivers/parport/
  Annotate hardware config module parameters in drivers/net/wireless/
  Annotate hardware config module parameters in drivers/net/wan/
  Annotate hardware config module parameters in drivers/net/irda/
  Annotate hardware config module parameters in drivers/net/hamradio/
  Annotate hardware config module parameters in drivers/net/ethernet/
  ...
2017-05-10 19:13:03 -07:00
Markus Elfring c3f6f8612b Input: switch to using sizeof(*type) when allocating memory
Instead of specifying type explicitly, derive it from the type of pointer
when allocating memory, which is considered safer practice.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-10 14:39:34 -07:00
Markus Elfring 63c9576544 Input: use seq_puts() in input_devices_seq_show()
Use seq_puts() when printing a string which does not contain a data format
specification.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-10 14:39:34 -07:00
Markus Elfring bb546136cc Input: use seq_putc() in input_seq_print_bitmap()
Switch to using seq_putc() when printing a single character '0'.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-10 14:39:33 -07:00
Tomohiro Yoshidomi 8be193c7b1 Input: add support for PlayStation 1/2 joypads connected via SPI
PlayStation 1/2 joypads can be connected directly to the SPI interface.

Signed-off-by: Tomohiro Yoshidomi <sylph23k@gmail.com>
Acked-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-10 14:35:48 -07:00
Benjamin Valentin 4706aa0756 Input: xpad - add USB IDs for Mad Catz Brawlstick and Razer Sabertooth
Add USB IDs for two more Xbox 360 controllers.

I found them in the pull requests for the xboxdrv userspace driver, which
seems abandoned.

Thanks to psychogony and mkaito for reporting the IDs there!

Signed-off-by: Benjamin Valentin <benpicco@googlemail.com>
Reviewed-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-07 14:50:55 -07:00
Benjamin Valentin 44bc722593 Input: xpad - sync supported devices with xboxdrv
The userspace xboxdrv driver [0] contains some USB IDs unknown to the
kernel driver. I have created a simple script [1] to extract the missing
devices and add them to xpad.

A quick google search confirmed that all the new devices called
Fightstick/pad are Arcade-type devices [2] where the
MAP_TRIGGERS_TO_BUTTONS option should apply.

There are some similar devices in the existing device table where this
flag is not set, but I did refrain from changing those.

[0] https://github.com/xboxdrv/xboxdrv/blob/stable/src/xpad_device.cpp
[1] http://codepad.org/CHV98BNH
[2] https://www.google.com/search?q=SFxT+Fightstick+Pro&tbm=isch

Signed-off-by: Benjamin Valentin <benpicco@googlemail.com>
Reviewed-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-07 14:50:54 -07:00
Benjamin Valentin 873cb58273 Input: xpad - sort supported devices by USB ID
Some entries in the table of supported devices are out of order.
To not create a mess when adding new ones using a script, sort them first.

Signed-off-by: Benjamin Valentin <benpicco@googlemail.com>
Reviewed-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-07 14:50:46 -07:00
Linus Torvalds af82455f7d char/misc patches for 4.12-rc1
Here is the big set of new char/misc driver drivers and features for
 4.12-rc1.
 
 There's lots of new drivers added this time around, new firmware drivers
 from Google, more auxdisplay drivers, extcon drivers, fpga drivers, and
 a bunch of other driver updates.  Nothing major, except if you happen to
 have the hardware for these drivers, and then you will be happy :)
 
 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-4.12-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 big set of new char/misc driver drivers and features for
  4.12-rc1.

  There's lots of new drivers added this time around, new firmware
  drivers from Google, more auxdisplay drivers, extcon drivers, fpga
  drivers, and a bunch of other driver updates. Nothing major, except if
  you happen to have the hardware for these drivers, and then you will
  be happy :)

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

* tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (136 commits)
  firmware: google memconsole: Fix return value check in platform_memconsole_init()
  firmware: Google VPD: Fix return value check in vpd_platform_init()
  goldfish_pipe: fix build warning about using too much stack.
  goldfish_pipe: An implementation of more parallel pipe
  fpga fr br: update supported version numbers
  fpga: region: release FPGA region reference in error path
  fpga altera-hps2fpga: disable/unprepare clock on error in alt_fpga_bridge_probe()
  mei: drop the TODO from samples
  firmware: Google VPD sysfs driver
  firmware: Google VPD: import lib_vpd source files
  misc: lkdtm: Add volatile to intentional NULL pointer reference
  eeprom: idt_89hpesx: Add OF device ID table
  misc: ds1682: Add OF device ID table
  misc: tsl2550: Add OF device ID table
  w1: Remove unneeded use of assert() and remove w1_log.h
  w1: Use kernel common min() implementation
  uio_mf624: Align memory regions to page size and set correct offsets
  uio_mf624: Refactor memory info initialization
  uio: Allow handling of non page-aligned memory regions
  hangcheck-timer: Fix typo in comment
  ...
2017-05-04 19:15:35 -07:00
Linus Torvalds 2bd8040174 This is the bulk of GPIO changes for the v4.12 kernel cycle:
Core changes
 
 - Return NULL from gpiod_get_optional() when GPIOLIB is disabled.
   This was a much discussed change. It affects use cases where people
   write drivers that might or might not be using GPIO resources.
   I have decided that this is the lesser evil right now.
 
 - Make gpiod_count() behave consistently across different hardware
   descriptions.
 
 - Fix the syntax around open drain/open source to not infer active
   high/low semantics.
 
 New drivers
 
 - A new single-register fixed-direction framework driver for hardware
   that have lines controlled by a single register that just work in
   one direction (out or in), including IRQ support.
 
 - Support the Fintek F71889A GPIO SuperIO controller.
 
 - Support the National NI 169445 MMIO GPIO.
 
 - Support for the X-Gene derivative of the DWC GPIO controller
 
 - Support for the Rohm BD9571MWV-M PMIC GPIO controller.
 
 - Refactor the Gemini GPIO driver to a generic Faraday FTGPIO driver
   and replace both the Gemini and the Moxa ART custom drivers with
   this driver.
 
 Driver improvements
 
 - A whole slew of drivers have their spinlocks chaned to raw spinlocks
   as they provide irqchips, and thus we are progressing on realtime
   compliance.
 
 - Use devm_irq_alloc_descs() in a slew of drivers, getting managed
   resources.
 
 - Support for the embedded PWM controller inside the MVEBU driver.
 
 - Debounce, open source and open drain support for the Aspeed driver.
 
 - Misc smaller fixes like spelling and syntax and whatnot.
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Merge tag 'gpio-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.12 kernel cycle.

  Core changes:

   - Return NULL from gpiod_get_optional() when GPIOLIB is disabled.
     This was a much discussed change. It affects use cases where people
     write drivers that might or might not be using GPIO resources. I
     have decided that this is the lesser evil right now.

   - Make gpiod_count() behave consistently across different hardware
     descriptions.

   - Fix the syntax around open drain/open source to not infer active
     high/low semantics.

  New drivers:

   - A new single-register fixed-direction framework driver for hardware
     that have lines controlled by a single register that just work in
     one direction (out or in), including IRQ support.

   - Support the Fintek F71889A GPIO SuperIO controller.

   - Support the National NI 169445 MMIO GPIO.

   - Support for the X-Gene derivative of the DWC GPIO controller

   - Support for the Rohm BD9571MWV-M PMIC GPIO controller.

   - Refactor the Gemini GPIO driver to a generic Faraday FTGPIO driver
     and replace both the Gemini and the Moxa ART custom drivers with
     this driver.

  Driver improvements:

   - A whole slew of drivers have their spinlocks chaned to raw
     spinlocks as they provide irqchips, and thus we are progressing on
     realtime compliance.

   - Use devm_irq_alloc_descs() in a slew of drivers, getting managed
     resources.

   - Support for the embedded PWM controller inside the MVEBU driver.

   - Debounce, open source and open drain support for the Aspeed driver.

   - Misc smaller fixes like spelling and syntax and whatnot"

* tag 'gpio-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits)
  gpio: f7188x: Add a missing break
  gpio: omap: return error if requested debounce time is not possible
  gpio: Add ROHM BD9571MWV-M PMIC GPIO driver
  gpio: gpio-wcove: fix GPIO IRQ status mask
  gpio: DT bindings, move tca9554 from pcf857x to pca953x
  gpio: move tca9554 from pcf857x to pca953x
  gpio: arizona: Correct check whether the pin is an input
  gpio: Add XRA1403 DTS binding documentation
  dt-bindings: add exar to vendor prefixes list
  gpio: gpio-wcove: fix irq pending status bit width
  gpio: dwapb: use dwapb_read instead of readl_relaxed
  gpio: aspeed: Add open-source and open-drain support
  gpio: aspeed: Add debounce support
  gpio: aspeed: dt: Add optional clocks property
  gpio: aspeed: dt: Fix description alignment in bindings document
  gpio: mvebu: Add limited PWM support
  gpio: Use unsigned int for interrupt numbers
  gpio: f7188x: Add F71889A GPIO support.
  gpio: core: Decouple open drain/source flag with active low/high
  gpio: arizona: Correct handling for reading input GPIOs
  ...
2017-05-04 12:05:32 -07:00
Linus Torvalds 16a12fa9ae Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem updates from Dmitry Torokhov:

 - a big update from Mauro converting input documentation to ReST format

 - Synaptics PS/2 is now aware of SMBus companion devices, which means
   that we can now use native RMI4 protocol to handle touchpads, instead
   of relying on legacy PS/2 mode.

 - we removed support from BMA180 accelerometer from input devices as it
   is now handled properly by IIO

 - update to TSC2007 to corretcly report pressure

 - other miscellaneous driver fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (152 commits)
  Input: ar1021_i2c - use BIT to check for a bit
  Input: twl4030-pwrbutton - use input_set_capability() helper
  Input: twl4030-pwrbutton - use correct device for irq request
  Input: ar1021_i2c - enable touch mode during open
  Input: add uinput documentation
  dt-bindings: input: add bindings document for ar1021_i2c driver
  dt-bindings: input: rotary-encoder: fix typo
  Input: xen-kbdfront - add module parameter for setting resolution
  ARM: pxa/raumfeld: fix compile error in rotary controller resources
  Input: xpad - do not suggest writing to Dominic
  Input: xpad - don't use literal blocks inside footnotes
  Input: xpad - note that usb/devices is now at /sys/kernel/debug/
  Input: docs - freshen up introduction
  Input: docs - split input docs into kernel- and user-facing
  Input: docs - note that MT-A protocol is obsolete
  Input: docs - update joystick documentation a bit
  Input: docs - remove disclaimer/GPL notice
  Input: fix "Game console" heading level in joystick documentation
  Input: rotary-encoder - remove references to platform data from docs
  Input: move documentation for Amiga CD32
  ...
2017-05-03 12:38:20 -07:00
Linus Torvalds d26f552ebb - New Drivers
- Freescale MXS Low Resolution ADC
    - Freescale i.MX23/i.MX28 LRADC touchscreen
    - Motorola CPCAP Power Button
    - TI LMU (Lighting Management Unit)
    - Atmel SMC (Static Memory Controller)
 
  - New Device Support
    - Add support for X-Powers AXP803 to axp20x
    - Add support for Dialog Semi DA9061 to da9062-core
    - Add support for Intel Cougar Mountain to lpc_ich
    - Add support for Intel Gemini Lake to lpc_ich
 
  - New Functionality
    - Add Device Tree support; wm831x-*, axp20x, ti-lmu, da9062, sun4i-gpadc
    - Add IRQ sense support; motorola-cpcap
    - Add ACPI support; cros_ec
    - Add Reset support; altera-a10sr
    - Add ADC support; axp20x
    - Add AC Power support; axp20x
    - Add Runtime PM support; atmel-ebi, exynos-lpass
    - Add Battery Power Supply support; axp20x
    - Add Clock support; exynos-lpass, hi655x-pmic
 
  - Fix-ups
    - Implicitly specify required headers; motorola-cpcap, intel_soc_pmic_bxtwc
    - Add .remove() method; stm32-timers, exynos-lpass
    - Remove unused code; intel_soc_pmic_core, intel-lpss-acpi, ipaq-micro, atmel-smc, menelaus
    - Rename variables for clarity; axp20x
    - Convert pr_warning() to pr_warn(); db8500-prcmu, sta2x11-mfd, twl4030-power
    - Improve formatting; arizona-core, axp20x
    - Use raw_spinlock_*() variants; asic3, t7l66xb, tc6393xb
    - Simplify/refactor code; arizona-core, atmel-ebi
    - Improve error checking; intel_soc_pmic_core
 
  - Bug Fixes
    - Ensure OMAP3630/3730 boards can successfully reboot; twl4030-power
    - Correct max-register value; stm32-timers
    - Extend timeout to account for clock stretching; cros_ec_spi
    - Use correct IRQ trigger type; motorola-cpcap
    - Fix bad use of IRQ sense register; motorola-cpcap
    - Logic error "||" should be "&&"; mxs-lradc-ts
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Merge tag 'mfd-next-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Freescale MXS Low Resolution ADC
   - Freescale i.MX23/i.MX28 LRADC touchscreen
   - Motorola CPCAP Power Button
   - TI LMU (Lighting Management Unit)
   - Atmel SMC (Static Memory Controller)

  New Device Support:
   - Add support for X-Powers AXP803 to axp20x
   - Add support for Dialog Semi DA9061 to da9062-core
   - Add support for Intel Cougar Mountain to lpc_ich
   - Add support for Intel Gemini Lake to lpc_ich

  New Functionality:
   - Add Device Tree support; wm831x-*, axp20x, ti-lmu, da9062, sun4i-gpadc
   - Add IRQ sense support; motorola-cpcap
   - Add ACPI support; cros_ec
   - Add Reset support; altera-a10sr
   - Add ADC support; axp20x
   - Add AC Power support; axp20x
   - Add Runtime PM support; atmel-ebi, exynos-lpass
   - Add Battery Power Supply support; axp20x
   - Add Clock support; exynos-lpass, hi655x-pmic

  Fix-ups:
   - Implicitly specify required headers; motorola-cpcap, intel_soc_pmic_bxtwc
   - Add .remove() method; stm32-timers, exynos-lpass
   - Remove unused code; intel_soc_pmic_core, intel-lpss-acpi, ipaq-micro, atmel-smc, menelaus
   - Rename variables for clarity; axp20x
   - Convert pr_warning() to pr_warn(); db8500-prcmu, sta2x11-mfd, twl4030-power
   - Improve formatting; arizona-core, axp20x
   - Use raw_spinlock_*() variants; asic3, t7l66xb, tc6393xb
   - Simplify/refactor code; arizona-core, atmel-ebi
   - Improve error checking; intel_soc_pmic_core

  Bug Fixes:
   - Ensure OMAP3630/3730 boards can successfully reboot; twl4030-power
   - Correct max-register value; stm32-timers
   - Extend timeout to account for clock stretching; cros_ec_spi
   - Use correct IRQ trigger type; motorola-cpcap
   - Fix bad use of IRQ sense register; motorola-cpcap
   - Logic error "||" should be "&&"; mxs-lradc-ts"

* tag 'mfd-next-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (79 commits)
  input: touchscreen: mxs-lradc: || vs && typos
  dt-bindings: Add AXP803's regulator info
  mfd: axp20x: Support AXP803 variant
  dt-bindings: Add device tree binding for X-Powers AXP803 PMIC
  dt-bindings: Make AXP20X compatible strings one per line
  mfd: intel_soc_pmic_core: Fix unchecked return value
  mfd: menelaus: Remove obsolete local_irq_disable() and local_irq_enable()
  mfd: omap-usb-tll: Configure ULPIAUTOIDLE
  mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode
  mfd: palmas: Fixed spelling mistake in error message
  mfd: lpc_ich: Add support for Intel Gemini Lake SoC
  mfd: hi655x: Add the clock cell to provide WiFi and Bluetooth
  mfd: intel_soc_pmic: Fix a mess with compilation units
  mfd: exynos-lpass: Add runtime PM support
  mfd: exynos-lpass: Add missing remove() function
  mfd: exynos-lpass: Add support for clocks
  mfd: exynos-lpass: Remove pad retention control
  iio: adc: add support for X-Powers AXP20X and AXP22X PMICs ADCs
  mfd: cpcap: Fix bad use of IRQ sense register
  mfd: cpcap: Use ack_invert interrupts
  ...
2017-05-03 12:16:25 -07:00
Dmitry Torokhov 0337966d12 Merge branch 'next' into for-linus
Prepare input updates for 4.12 merge window.
2017-05-02 09:48:26 -07:00
Martin Kepplinger 8a038b83e0 Input: ar1021_i2c - use BIT to check for a bit
The MSB for the first byte of touch data transmission is always 1. Make
it a little more obvious we're testing this bit by using BIT(7).

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-01 12:30:00 -07:00
Sebastian Reichel 61e29ec1c9 Input: twl4030-pwrbutton - use input_set_capability() helper
Cleanup driver slightly by using input_set_capability() instead
of manually setting the required bits.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-01 09:29:08 -07:00
Sebastian Reichel 3071e9dd6c Input: twl4030-pwrbutton - use correct device for irq request
The interrupt should be requested for the platform device
and not for the input device.

Fixes: 7f9ce649d2 ("Input: twl4030-pwrbutton - simplify driver using devm_*")
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-01 09:29:08 -07:00
Martin Kepplinger e55057e82a Input: ar1021_i2c - enable touch mode during open
The device could as well be in command mode, in which this driver cannot
handle the device. When opening the device, let's make sure the device
will be in the mode we expect it to be for this driver.

Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-01 09:28:49 -07:00
Linus Torvalds affb852d2f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fix from Dmitry Torokhov:
 "Yet another quirk to i8042 to get touchpad recognized on some laptops"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: i8042 - add Clevo P650RS to the i8042 reset list
2017-04-28 11:08:42 -07:00
Dan Carpenter ab6241ae07 input: touchscreen: mxs-lradc: || vs && typos
These tests are meaningless as is because "adapt" can't possibly be both
less than 1 and greater than 32.

Fixes: d81ca730e3 ("input: touchscreen: mxs-lradc: Add support for touchscreen")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-27 11:54:50 +01:00
Lee Jones 18973ceb89 Merge branches 'ib-mfd-gpio-4.12', 'ib-mfd-iio-input-4.12', 'ib-mfd-input-4.12', 'ib-mfd-leds-4.12', 'ib-mfd-phy-4.12' and 'ib-mfd-pinctrl-samsung-4.12' into ibs-for-mfd-merged 2017-04-27 09:24:41 +01:00
Dmitry Torokhov 7c5bb4ac2b Input: i8042 - add Clevo P650RS to the i8042 reset list
Clevo P650RS and other similar devices require i8042 to be reset in order
to detect Synaptics touchpad.

Reported-by: Paweł Bylica <chfast@gmail.com>
Tested-by: Ed Bordin <edbordin@gmail.com>
Cc: stable@vger.kernel.org
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=190301
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-24 16:15:58 -07:00
Linus Torvalds 4d4dfc1caa Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixlet from Dmitry Torokhov:
 "An update to Elan PS/2 driver to allow working on yet another
  Lifebook"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elantech - add Fujitsu Lifebook E547 to force crc_enabled
2017-04-21 09:13:43 -07:00
David Howells f6b12d0434 Annotate hardware config module parameters in drivers/input/
When the kernel is running in secure boot mode, we lock down the kernel to
prevent userspace from modifying the running kernel image.  Whilst this
includes prohibiting access to things like /dev/mem, it must also prevent
access by means of configuring driver modules in such a way as to cause a
device to access or modify the kernel image.

To this end, annotate module_param* statements that refer to hardware
configuration and indicate for future reference what type of parameter they
specify.  The parameter parser in the core sees this information and can
skip such parameters with an error message if the kernel is locked down.
The module initialisation then runs as normal, but just sees whatever the
default values for those parameters is.

Note that we do still need to do the module initialisation because some
drivers have viable defaults set in case parameters aren't specified and
some drivers support automatic configuration (e.g. PNP or PCI) in addition
to manually coded parameters.

This patch annotates drivers in drivers/input/.

Suggested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
cc: linux-input@vger.kernel.org
2017-04-20 12:02:32 +01:00
Juergen Gross 8b3afdfa48 Input: xen-kbdfront - add module parameter for setting resolution
Add a parameter for setting the resolution of xen-kbdfront in order to
be able to cope with a (virtual) frame buffer of arbitrary resolution.

While at it remove the pointless second reading of parameters from
Xenstore in the device connection phase: all parameters are available
during device probing already and that is where they should be read.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-19 09:02:43 -07:00
Thorsten Leemhuis 704de489e0 Input: elantech - add Fujitsu Lifebook E547 to force crc_enabled
Temporary got a Lifebook E547 into my hands and noticed the touchpad
only works after running:

	echo "1" > /sys/devices/platform/i8042/serio2/crc_enabled

Add it to the list of machines that need this workaround.

Cc: stable@vger.kernel.org
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Reviewed-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-18 11:29:24 -07:00
Linus Torvalds 1bf4b1268e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
 "Just a small update to xpad driver to recognize yet another gamepad,
  and another change making sure userio.h is exported"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: xpad - add support for Razer Wildcat gamepad
  uapi: add missing install of userio.h
2017-04-14 17:51:16 -07:00
Nick Dyer a6869e3a76 Input: synaptics-rmi4 - enable IRQ operation in F34 V7
The polled firmware update proved unreliable when testing on S7817. Use
attention to signal commands are complete.

Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-14 14:52:32 -07:00
Nick Dyer 25670fb037 Input: synaptics-rmi4 - change F12 clip to inactive border debug
The data in F12_2D_Ctrl8 corresponds to the inactive border width used by
the RMI device. It is not in pixel units and should not be treated as a
clip value.

Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-14 14:52:31 -07:00
Nick Dyer 72fe38704c Input: synaptics-rmi4 - use dev_driver_string when registering interrupt
When IRQ handling was moved to rmi_driver in 3aeed5b the naming of the
interrupt changed from "rmi4_i2c" to "2-0020" (or similar). This patch
restores the previous behaviour and makes the interrupt easier to identify
in /proc/interrupts.

Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-14 14:52:29 -07:00
Martin Kepplinger 021cbc1eda Input: ar1021_i2c - highlight support for AR1020
ar1021_i2c also supports the ar1020 device I'm using. This is tested.
They also share the same datasheet:

   http://ww1.microchip.com/downloads/en/DeviceDoc/40001393C.pdf

So let users see that they have a compatible in front of them by adding
AR1020 to the driver's description.

Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-14 10:17:04 -07:00
Dmitry Torokhov 61e977b7a4 Input: ar1021_i2c - do not force raising edge IRQ trigger
We should not be forcing edge triggered interrupt, but rather let platform
decide the kind of trigger it needs to use. Also, the driver is not quite
safe with regard to edge-triggered interrupts as it does not try to kick
the controller after requesting/enabling IRQ.

Reviewed-By: Christian Gmeiner <christian.gmeiner@gmail.com>
Tested-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-14 10:16:50 -07:00
Dmitry Torokhov 95123fc435 Input: ar1021_i2c - fix too long name in driver's device table
The name field in structure i2c_device_id is 20 characters, and we expect
it to be NULL-terminated, however we are trying to stuff it with 21 bytes
and thus NULL-terminator is lost. This causes issues when one creates
device with name "MICROCHIP_AR1021_I2C" as i2c core cuts off the last "C",
and automatic module loading by alias does not work as result.

The -I2C suffix in the device name is superfluous, we know what bus we are
dealing with, so let's drop it. Also, no other driver uses capitals, and
the manufacturer name is normally not included, except in very rare cases
of incompatible name collisions.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=116211
Fixes: dd4cae8bf1 ("Input: Add Microchip AR1021 i2c touchscreen")
Reviewed-By: Christian Gmeiner <christian.gmeiner@gmail.com>
Tested-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-14 10:16:38 -07:00
Martin Kepplinger 2274c98720 Input: ar1021_i2c - coding style fixes
Use the common kernel coding style and corrently align parameters with
open parenthesis.

Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-12 08:47:18 -07:00
Fabio Estevam 71f9f08103 Input: lpc32xx_ts - check for clk_prepare_enable() error
clk_prepare_enable() may fail, so we better check its return value and
propagate it in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-12 08:47:18 -07:00
Fabio Estevam c286841720 Input: imx6ul_tsc - fix error handling
If imx6ul_tsc_init() fails we should not return directly.

We should disable the previously acquired clocks in this case.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-12 08:47:17 -07:00
Sebastian Reichel 6d99971842 input: cpcap-pwrbutton: New driver
Motorola CPCAP is a PMIC found in multiple smartphones.
This driver adds support for the power/on button and has
been tested in Droid 4.

Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-11 15:18:09 +01:00
Christophe JAILLET 9bb9dc1359 Input: omap-keypad - fix error handling code
According to the previous error handling code, it is likely that 'goto
err_free_keymap' is expected here in order to avoid a memory leak in error
handling path.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-10 20:51:49 -07:00
Cameron Gutman 5376366886 Input: xpad - add support for Razer Wildcat gamepad
Cc: stable@vger.kernel.org
Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-10 20:45:31 -07:00
Cameron Gutman 81093c9848 Input: xpad - support some quirky Xbox One pads
There are several quirky Xbox One pads that depend on initialization
packets that the Microsoft pads don't require. To deal with these,
I've added a mechanism for issuing device-specific initialization
packets using a VID/PID-based quirks list.

For the initial set of init quirks, I have added quirk handling from
Valve's Steam Link xpad driver[0] and the 360Controller project[1] for
macOS to enable some new pads to work properly.

This should enable full functionality on the following quirky pads:
0x0e6f:0x0165 - Titanfall 2 gamepad (previously fully non-functional)
0x0f0d:0x0067 - Hori Horipad (analog sticks previously non-functional)
0x24c6:0x541a - PowerA Xbox One pad (previously fully non-functional)
0x24c6:0x542a - PowerA Xbox One pad (previously fully non-functional)
0x24c6:0x543a - PowerA Xbox One pad (previously fully non-functional)

[0]: https://github.com/ValveSoftware/steamlink-sdk/blob/master/kernel/drivers/input/joystick/xpad.c
[1]: https://github.com/360Controller/360Controller

Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-10 20:45:14 -07:00
Martin Kepplinger c5cb37d0d6 Input: yealink - define packet offset __be16 instead of u16
sparse says

 warning: incorrect type in assignment (different base types)
    expected unsigned short [unsigned] [usertype] offset
    got restricted __be16 [usertype] <noident>

for every usage of cpu_to_be16 in yealink.c. Defining it __be16 in the
first place shouldn't hurt.

Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Henk.Vergonet@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-10 20:41:41 -07:00
Geliang Tang bee8449331 Input: turbografx - use setup_timer
Use setup_timer() instead of init_timer() to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-10 20:41:40 -07:00
Geliang Tang cfecc1ebdc Input: locomokbd - use setup_timer
Use setup_timer() instead of init_timer() to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-10 20:41:40 -07:00
Geliang Tang d8f2bed04c Input: gameport - use setup_timer
Use setup_timer() instead of init_timer() to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-10 20:41:39 -07:00
Geliang Tang c9a9b72f34 Input: db9 - use setup_timer
Use setup_timer() instead of init_timer() to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-10 20:41:38 -07:00
Hans de Goede dd224085d7 Input: soc_button_array - properly map usage 0x07/0xe3 to KEY_LEFTMETA
When submitting the support for the ACPI0011 windows tablet keys device I
mapped the "windows" logo homekey to KEY_HOMEPAGE. But this is inconsistent
with how it is done on windows tablets using the old PNP0C40 ACPI device
and it does not match the HUT spec, which says that usage-page 7 usage 0xe3
is "Keyboard Left GUI".

This commit maps usage-page 7 usage 0xe3 to KEY_LEFTMETA fixing this.

Fixes: 4c3362f449 ("Input: soc_button_array - add support for ACPI 6.0...")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-10 20:41:37 -07:00
Damien Riegel 792ad66839 Input: pm8xxx-vib - add support for pm8916's vibrator
Add pm8xxx_regs for this PMIC and the device tree match table entry.

Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-05 08:52:39 -07:00
Damien Riegel d4c7c5c96c Input: pm8xxx-vib - handle separate enable register
Some PMIC vibrator IPs use a separate enable register to turn the
vibrator on and off. To detect if a vibrator uses this feature, rely on
the enable_mask being non-zero.

Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-05 08:52:38 -07:00
Damien Riegel 2de3b7048d Input: pm8xxx-vib - parametrize the driver
In order to prepare this driver to support other vibrators of the same
kind, move some hardcoded values to a structure holding register
parameters (address, mask, shit of the control register).

Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-05 08:52:37 -07:00
Damien Riegel f6bcc91ba6 Input: pm8xxx-vib - reorder header alphabetically
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-05 08:52:37 -07:00
Martin Kepplinger dd04dc6dbd Input: sur40 - fix bad endianness handling in sur40_poll
sparse says:

  sur40.c:372:40: warning: restricted __le32 degrades to integer

the header's data is __le32 so we need to convert it before comparing.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-05 08:52:36 -07:00
Dmitry Torokhov d99caa472c Input: eeti_ts - switch to gpiod API
gpiod API allows standard way of specifying GPIO polarity and takes it into
account when reading or setting GPIO state. It also allows us to switch to
common way of obtaining GPIO descriptor and away form legacy platform data.

Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-05 08:52:33 -07:00
Dmitry Torokhov d422be5f62 Input: eeti_ts - expect platform code to set interrupt trigger
Instead of keying interrupt trigger off GPIO polarity, let's rely on
platform code to set it up properly for us.

Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-05 08:52:13 -07:00
Dmitry Torokhov 0378008a99 Input: eeti_ts - switch to using threaded interrupt
Instead of having standard interrupt handler and manually firing work item
to perform I2C reads, let's switch to threaded interrupts, which were
designed specifically for this purpose.

Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:24:34 -07:00
Dmitry Torokhov 173e4d81f7 Input: eeti_ts - use gpio_get_value_cansleep
We are reading GPIO state in a non-atomic context (workqueue), so we can
use "cansleep" variant, and thus make the driver available on systems where
GPIO controllers require sleeping when reading GPIO state.

Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:24:33 -07:00
Dmitry Torokhov 2d38849989 Input: eeti_ts - respect interrupt set in client structure
Instead of expecting that GPIO is always interrupt source, let's use
interrupt specified in I2C client.

Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:24:33 -07:00
Dmitry Torokhov 6f9fab69a2 Input: eeti_ts - switch to using managed resources
Using devm_* APIs simpifies error handling and device teardown.

Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:24:32 -07:00
Dmitry Torokhov 42e02a6a0d Input: eeti_ts - use input_set_capability()
Use input_set_capability() instead of manipulating evbit/keybit
masks directly.

Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:24:32 -07:00
Dmitry Torokhov e9f66cdb7d Input: eeti_ts - use get_unaligned_be16() to retrieve data
Instead of manually converting big endian data on wire into host
endianness, let's use helpers to do that for us. It might save us
a few cycles if host endianness matches what's on wire.

Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:24:31 -07:00
Dmitry Torokhov 272c03bb19 Input: eeti_ts - use BIT(n)
Use idiomatic BIT(n) to form single-bit masks.

Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:24:30 -07:00
Dmitry Torokhov 720bebdff2 Input: eeti_ts - rename eeti_ts_priv to eeti_ts
Also rename 'priv' variables to eeti.

Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:24:30 -07:00
Dmitry Torokhov 54bf08946a Input: synaptics-rmi4 - when registering sensors do not call them "drivers"
We are not registering drivers, but transport devices (AKA sensors), so
let's call them that.

Also let's rename "retval" to "error" in probe() functions as the variables
are used to store error codes.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:24:00 -07:00
Dmitry Torokhov 8a7c71ae38 Input: synaptics-rmi4 - cleanup SMbus mapping handling
There is no reason to copy structures field-by-filed when we can copy
elements at once.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:24:00 -07:00
Dmitry Torokhov 2593cd1189 Input: synaptics-rmi4 - fix endianness issue in SMBus transport
The mapping table holds address in LE form, so we should convert it
to CPU when comparing it.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:23:59 -07:00
Dmitry Torokhov 8cf0adf2f8 Input: synaptics-rmi4 - fix handling failures from rmi_enable_sensor
If rmi_enable_sensor() fails in rmi_driver_probe(), we should not return
immediately, but disable IRQs and tear down function list.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:23:59 -07:00
Dmitry Torokhov f6c4442bfa Input: synaptics - use u8 instead of unsigned char
The rest of the kernel uses u8, u16, etc for data coming form hardware,
let's switch ti using u8 here as well.

Also turn pkt_type into an enum.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:23:58 -07:00
Dmitry Torokhov 212baf03a3 Input: synaptics - do not abuse -1 as return value
Let's stop using -1 as a universal return value and instead propagate
errors from underlying calls up the stack.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:23:58 -07:00
Dmitry Torokhov 991d29fe02 Input: synaptics - use BIT() and GENMASK() macros
Use standard infrastructure, such as BIT and GENMASK, instead of rolling
bitmasks by hand.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:23:57 -07:00
Dmitry Torokhov 2c6ecbba90 Input: synaptics - add synaptics_query_int()
Factor out querying and parsing 3-byte response into an integer value.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:23:57 -07:00
Dmitry Torokhov a716a026bb Input: psmouse - use i2c_client_type to locate i2c clients
Now that i2c_client_type structure is exported, we can use it, instead
of i2c_adapter_type, when looking for devices that are i2c clients.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 12:03:55 -07:00
Dmitry Torokhov 03b22057e8 Linux 4.11-rc5
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Merge tag 'v4.11-rc5' into next

Sync up with mainline to bring in changes to input subsystem merged
through other trees.
2017-04-03 12:01:20 -07:00
Rajat Jain e6eba3fac9 Input: cros_ec_keyb - add an EC event for sysrq
Some form factors (detachables/tablets) may not have a keyboard and
thus user may have to resort to using a defined EC UI to send sysrq(s)
to the kernel in order to collect crash info etc. This UI typically
is in the form of user pressing volume / power buttons in some specific
sequence and for some specific time. Add a new EC event that allows EC
to communicate the sysrq to the AP.

(We're skipping event number 5 because it has been reserved for
something else)

Signed-off-by: Rajat Jain <rajatja@google.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 11:59:57 -07:00
Dmitry Torokhov f6f08c55cc Input: psmouse - fix cleaning up SMBus companions
When trying to destroy platform data after destruction of SMbus companion,
we need to make sure that we are actually dealing with an SMB companion
device, and not some random I2C client device.

Fixes: 8eb92e5c91 ("Input: psmouse - add support for SMBus companions")
Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 11:59:56 -07:00
H. Nikolaus Schaller f069b5a0b2 Input: bma150 - remove support for bma150
This essentially reverts commit baf28d91e7 ("Input: bma150 - avoid
binding to bma180 if IIO bma180 driver present") and commit ef3714fdbc
("Input: bma150 - extend chip detection for bma180")

Rationale: initially (2012) the GTA04 device using a bma180 chip simply
referenced the bma150 platform driver in its board file [1] which happened
to work in all scenarios that were tested.

When conversion to DT started (2014), we needed to make the driver be still
recognised. Hence we introduced the compatibility to the bma180 chip in
Linux 3.15-rc5 [2] without further checks if it is really 100% compatible.
This worked flawlessly for years with the GTA04 device.

Recently (2016), Hans de Goede pointed out that the chips are not as
similar as they appeared and the driver works with the bma180 for the GTA04
only by good luck. He proposed to remove the bma180 support completely [3],
but we still did need it until we have a replacement. Thus, a conditional
compile was added.

We have now developed a generic iio-input-bridge which works with any 2 or
3 axis iio based accelerometer. It has been tested on GTA04 and Pyra and
works as expected. Therefore we can remove the bma180 support from this
driver completely. User-space API compatibility can be restored by using
the iio-input-bridge.

Maybe it is time to convert the bma150 driver to iio as well and retire the
accelerometer input drivers completely but this is a different story and
task.

[1]: https://github.com/neilbrown/linux/blob/gta04/3.2.y/arch/arm/mach-omap2/board-omap3gta04.c#L976
[2]: https://patchwork.kernel.org/patch/3961171/
[3]: https://patchwork.kernel.org/patch/9325481/

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-01 11:44:53 -07:00
Jagan Teki 00480324d1 Input: max11801_ts - add missing of_match_table
Added missing of_match_table for max11801_ts driver with compatible as
"maxim,max11801_ts"

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-29 00:25:03 -07:00
David Rivshin aa0e26bb78 Input: matrix_keypad - add option to drive inactive columns
The gpio-matrix-keypad driver normally sets inactive columns as inputs
while scanning. This does not work for all hardware, which may require
the inactive columns to be actively driven in order to overcome any
pull-ups/downs on the columns.

Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-29 00:25:01 -07:00
Dmitry Torokhov 4896fb1348 Input: melfas_mip4 - ensure that device is present
Try a quick read from the device in mip4_query_device() to make sure
that the device is there, as we do not consider failures to retrieve
product name or resolution fatal.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-29 00:25:01 -07:00
Greg Kroah-Hartman 57c0eabbd5 Merge 4.11-rc4 into char-misc-next
We want the char-misc fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-27 09:13:04 +02:00
David Jander f5a28a7d48 Input: ads7846 - avoid pen up/down when reading hwmon
Each time the HWMON devices are read (e.g. battery voltage) while the
touchscreen is held pressed, extra pen-up and pen-down events are
generated. This is fixed by avoiding the UP event when the touchscreen is
stopped.

Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:38:43 -07:00
Benjamin Tissoires e839ffab02 Input: synaptics - add support for Intertouch devices
Most of the Synaptics devices are connected through PS/2 and a different
bus (SMBus or HID over I2C). The secondary bus capability is indicated by
the InterTouch bit in extended capability 0x0C.

We only enable the InterTouch device to be created for the laptops
registered with the top software button property or those we know that are
functional. In the future, we might change the default to always rely on
the InterTouch bus. Currently, users can enable/disable the feature with
the psmouse parameter synaptics_intertouch.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:30 -07:00
Dmitry Torokhov 6c53694fb2 Input: synaptics - split device info into a separate structure
In preparation for SMBus/Intertouch 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.

Also stop using "unsigned long", everything fits into 32 bit chunks.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:29 -07:00
Benjamin Tissoires 8eb92e5c91 Input: psmouse - add support for SMBus companions
This provides glue between PS/2 devices that enumerate the RMI4 devices
and Elan touchpads to the RMI4 (or Elan) SMBus driver.

The SMBus devices keep their PS/2 connection alive. If the initialization
process goes too far (psmouse_activate called), the device disconnects
from the I2C bus and stays on the PS/2 bus, that is why we explicitly
disable PS/2 device reporting (by calling psmouse_deactivate) before
trying to register SMBus companion device.

The HID over I2C devices are enumerated through the ACPI DSDT, and
their PS/2 device also exports the InterTouch bit in the extended
capability 0x0C. However, the firmware keeps its I2C connection open
even after going further in the PS/2 initialization. We don't need
to take extra precautions with those device, especially because they
block their PS/2 communication when HID over I2C is used.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:29 -07:00
Dmitry Torokhov c774326a21 Input: psmouse - introduce notion of SMBus companions
Prepare PS/2 mouse drivers to work with devices that are accessible both
via PS/2 and SMBus, which provides higher bandwidth, and thus suits better
for modern multi-touch devices.

We expect that SMBus drivers will take control over the device, so when
we detect SMBus "protocol" we forego registering input device, or enabling
PS/2 device reports (as it usually makes device unresponsive to access over
SMBus).

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:28 -07:00
Dmitry Torokhov 085fa80dfd Input: psmouse - store pointer to current protocol
Instead of storing only protocol "type" in pmsouse structure, store pointer
to the protocol structure, so that we have access to more data without
having to copy it over to psmouse structure.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:27 -07:00
Dmitry Torokhov 0ab3fa5742 Input: psmouse - implement fast reconnect option
Make use of serio's fast reconnect option and allow psmouse protocol
handler's to implement fast reconnect handlers that will be called during
system resume.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:27 -07:00
Dmitry Torokhov 5ea1320653 Input: serio - add fast reconnect option
Devices connected to serio bus are quite slow, and to improve apparent
speed of resume process, serio core resumes (reconnects) its devices
asynchronously, by posting port reconnect requests to a workqueue.
Unfortunately this means that if there is a dependent device of a given
serio port (for example SMBus part of touchpad connected via both PS/2 and
SMBus), we do not have a good way of ensuring resume order.

This change allows drivers to define "fast reconnect" handlers that would
be called in-line during system resume. Drivers need to ensure that these
handlers are truly "fast".

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:26 -07:00
Linus Torvalds 02a2cad8e8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
 "Fixes to various USB drivers to validate existence of endpoints before
  trying to use them, fixes to APLS v8 protocol, and a couple of i8042
  quirks"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: ALPS - fix trackstick button handling on V8 devices
  Input: ALPS - fix V8+ protocol handling (73 03 28)
  Input: sur40 - validate number of endpoints before using them
  Input: kbtab - validate number of endpoints before using them
  Input: hanwang - validate number of endpoints before using them
  Input: yealink - validate number of endpoints before using them
  Input: ims-pcu - validate number of endpoints before using them
  Input: cm109 - validate number of endpoints before using them
  Input: iforce - validate number of endpoints before using them
  Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw
  Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux list
  Input: synaptics-rmi4 - prevent null pointer dereference in f30
  Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000
2017-03-23 19:51:06 -07:00
Dmitry Torokhov 996b9eedd0 Input: synaptics - do not mix logical and bitwise operations
Let's stop using !!x to reduce value of trackstick button expression to 0/1
and use shift instead. This removes the following sparse warning:

  CHECK   drivers/input/mouse/synaptics.c
drivers/input/mouse/synaptics.c:943:79: warning: dubious: !x | y

Also, the bits we are testing are not capabilities, so lets drop "_CAP"
suffix from macro names.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-23 14:49:37 -07:00
Javier Martinez Canillas cf5cd9d448 Input: qt1070 - add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

The compatible strings don't have a vendor prefix because that's how it's
used currently, and changing this will be a Device Tree ABI break.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-23 14:46:33 -07:00
Javier Martinez Canillas 72bf60f196 Input: synaptics_i2c - add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-23 14:46:32 -07:00
Javier Martinez Canillas 483e55d973 Input: silead - add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

As pointed by Hans de Goede, there's no mssl1680 and this is just used in
some ACPI systems to identify the gsl1680 chip. So isn't included in the
OF device ID table since a DT should use the proper device name instead.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-23 14:46:31 -07:00
Ksenija Stanojevic d81ca730e3 input: touchscreen: mxs-lradc: Add support for touchscreen
Add 4-wire/5-wire touchscreen controller.

Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-03-23 12:28:54 +00:00
Logan Gunthorpe 358a89ca2c input: utilize new cdev_device_add helper function
Replace the open coded registration of the cdev and dev with the
new device_add_cdev() helper in evdev, joydev and mousedev. The helper
replaces a common pattern by taking the proper reference against the
parent device and adding both the cdev and the device.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-21 06:44:32 +01:00
Joe Perches fef5f569db Input: convert remaining uses of pr_warning to pr_warn
To enable eventual removal of pr_warning

This makes pr_warn use consistent for drivers/input

Prior to this patch, there were 8 uses of pr_warning and
17 uses of pr_warn in drivers/input

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-17 17:25:02 -07:00
Masaki Ota 47e6fb4212 Input: ALPS - fix trackstick button handling on V8 devices
Alps stick devices always have physical buttons, so we should not check
ALPS_BUTTONPAD flag to decide whether we should report them.

Fixes: 4777ac220c ("Input: ALPS - add touchstick support for SS5 hardware")
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Acked-by: Pali Rohar <pali.rohar@gmail.com>
Tested-by: Paul Donohue <linux-kernel@PaulSD.com>
Tested-by: Nick Fletcher <nick.m.fletcher@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-17 14:25:04 -07:00
Masaki Ota e7348396c6 Input: ALPS - fix V8+ protocol handling (73 03 28)
Devices identified as E7="73 03 28" use slightly modified version of V8
protocol, with lower count per electrode, different offsets, and different
feature bits in OTP data.

Fixes: aeaa881f9b ("Input: ALPS - set DualPoint flag for 74 03 28 devices")
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Acked-by: Pali Rohar <pali.rohar@gmail.com>
Tested-by: Paul Donohue <linux-kernel@PaulSD.com>
Tested-by: Nick Fletcher <nick.m.fletcher@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-17 14:25:03 -07:00
Hans de Goede 4c3362f449 Input: soc_button_array - add support for ACPI 6.0 Generic Button Device
Windows 10 tablets with gpio buttons will typically use the ACPI 6.0
Generic Button Device with a HID of ACPI0011 for these buttons.

The ACPI description for these in the ACPI0011 devices _DSD object uses
something resembling HID descriptors, except that instead of indicating
a bit index into a HID input report, the index indicates the _CRS index
for the GPIO.

The use of 1 interrupt per button, some of which need to be wakeup
sources, instead of using input reports makes it impossible to use the
HID subsystem for this.

This really is just another gpio-keys input device with the platform
data described in ACPI, so this commit adds parsing for this new way
to describe gpio-keys to the soc_button_array driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-17 14:09:23 -07:00
Hans de Goede 7283b47d5d Input: soc_button_array - get rid of MAX_NBUTTONS
Count how much gpio_keys we actually need, this is a preparation patch
for adding support for the new Win10 / ACPI-6.0 "Generic Buttons Device"
support.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-17 14:09:22 -07:00
Johan Hovold 92461f5d72 Input: sur40 - validate number of endpoints before using them
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer or accessing memory that lie beyond the end of the endpoint
array should a malicious device lack the expected endpoints.

Fixes: bdb5c57f20 ("Input: add sur40 driver for Samsung SUR40... ")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org	# 3.13
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-16 13:56:54 -07:00
Johan Hovold cb1b494663 Input: kbtab - validate number of endpoints before using them
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer should a malicious device lack endpoints.

Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-16 13:56:53 -07:00
Johan Hovold ba340d7b83 Input: hanwang - validate number of endpoints before using them
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer should a malicious device lack endpoints.

Fixes: bba5394ad3 ("Input: add support for Hanwang tablets")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org	# 2.6.37
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-16 13:56:52 -07:00
Johan Hovold 5cc4a1a9f5 Input: yealink - validate number of endpoints before using them
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer should a malicious device lack endpoints.

Fixes: aca951a22a ("[PATCH] input-driver-yealink-P1K-usb-phone")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org	# 2.6.14
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-16 13:56:52 -07:00
Johan Hovold 1916d31927 Input: ims-pcu - validate number of endpoints before using them
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer should a malicious device lack control-interface endpoints.

Fixes: 628329d524 ("Input: add IMS Passenger Control Unit driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org	# 3.10
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-16 13:56:51 -07:00
Johan Hovold ac2ee9ba95 Input: cm109 - validate number of endpoints before using them
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer should a malicious device lack endpoints.

Fixes: c04148f915 ("Input: add driver for USB VoIP phones with CM109...")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org	# 2.6.28
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-16 13:56:50 -07:00
Johan Hovold 59cf8bed44 Input: iforce - validate number of endpoints before using them
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer or accessing memory that lie beyond the end of the endpoint
array should a malicious device lack the expected endpoints.

Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-16 13:56:45 -07:00
Andy Shevchenko c5097538c8 Input: soc_button_array - Propagate error from gpiod_count()
Since gpiod_count() does not return 0 anymore, we don't need to shadow
its error code and would safely propagate to the user.

While here, replace second parameter by NULL in order to prevent side
effects on _DSD enabled firmware.

Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-03-16 21:52:12 +01:00
Yegor Yefremov 2e2a0db8c8 Input: tps6507x-ts - update to devm_* API
Update the code to use devm_* API so that driver core will manage
resources.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-15 15:44:49 -07:00
Matjaz Hegedic 92ef6f97a6 Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw
EeeBook X205TA is yet another ASUS device with a special touchpad
firmware that needs to be accounted for during initialization, or
else the touchpad will go into an invalid state upon suspend/resume.
Adding the appropriate ic_type and product_id check fixes the problem.

Signed-off-by: Matjaz Hegedic <matjaz.hegedic@gmail.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-10 14:37:19 -08:00
Dmitry Torokhov a4c2a13129 Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux list
TUXEDO BU1406 does not implement active multiplexing mode properly,
and takes around 550 ms in i8042_set_mux_mode(). Given that the
device does not have external AUX port, there is no downside in
disabling the MUX mode.

Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Suggested-by: Vojtech Pavlik <vojtech@suse.cz>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-10 14:15:22 -08:00
Benjamin Tissoires b6573da139 Input: synaptics-rmi4 - prevent null pointer dereference in f30
If the platform data has f30_data.disable set, f30 in rmi_f30_config()
might be null. Prevent a kernel oops by checking for non-null f30.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-10 10:22:53 -08:00
Dmitry Torokhov 52e4f1d601 Input: dm355evm_keys - switch to using managed resources
Using devm_* APIs simpifies error handling and device teardown.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-09 10:06:19 -08:00
Dmitry Torokhov fc2a6e5048 Input: wistron_btns - remove use of sparse_keymap_free
Now that sparse keymap uses managed memory, we no longer need to clean it
up manually.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-09 10:06:12 -08:00
Dmitry Torokhov a227954756 Input: dm355evm_keys - remove use of sparse_keymap_free
Now that sparse keymap uses managed memory, we no longer need to clean it
up manually.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-09 10:06:11 -08:00
Dmitry Torokhov 7b179e251b Merge branch 'ib/4.10-sparse-keymap-managed' into next
This brings in version of sparse keymap code that uses managed memory.
2017-03-09 10:03:22 -08:00
Hans de Goede a01cd17000 Input: soc_button_array - use NULL for GPIO connection ID
The gpiolib-acpi code is becoming more strict and connection-IDs
may only be used with devices which have a _DSD with matching IDs
in there. Since the soc_button_array ACPI binding is pure index
based pass in NULL as connection-ID to avoid the more strict cheks
resulting in gpiod_count and gpiod_get_index not returning any gpios.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-09 10:01:04 -08:00
Hans de Goede 9b13a4ca8d Input: axp20x-pek - do not register input device on some systems
On some systems (Intel tablets with axp288 pmic) the powerbutton is
also connected to a gpio pin of the SoC, advertised through the
"INTCFD9" / "PNP0C40" acpi device. This leads to double reporting
of powerbutton events, which is undesirable, so one driver needs
to not report input events in this case.

Since the soc_button_array driver for the "PNP0C40" acpi device
also handles wake from suspend on these tablets and since the
axp20x-pel driver requires relative expensive i2c accrsses,
it is best for the axp20x-pek driver to not register an input device
in this case.

Note that this commit leaves the axp20x-driver bound to the
device, rather then returning -ENODEV, this is done so that the
sysfs attributes it offers are kept around.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-09 10:01:03 -08:00
Hans de Goede f2bd5a9ec5 Input: axp20x_pek - add axp20x_pek_probe_input_device helper
Move all input device related initialization into a new
axp20x_pek_probe_input_device helper function.

This introduces one functional change, the input device is now
registered before the sysfs attr get registered. This is not a problem
as the sysfs attr are to configure some long press settings (forced
poweroff) in the hardware and do not interact with the input_device.

This is a preparation patch for not always registering the input dev.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-09 10:01:03 -08:00
Hans de Goede 73915f369e Input: axp20x-pek - use our own device for errors
Before this commit axp20x-pek was mixing 2 style error reporting calls:
dev_err(&pdev->dev, ...);
dev_err(axp20x->dev, ...);

But the second is our parent device, not our own device, so switch to
using &pdev->dev everywhere.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-09 10:01:02 -08:00
Jingkui Wang bc682a50a0 Input: drv260x - remove OF dependency
As the driver is using generic device properties, it should work
properly when CONFIG_OF is turned off. This patch removes the
ifdef CONFIGOF and make sure the driver always have of_match_table.

Signed-off-by: Jingkui Wang <jkwang@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-09 10:00:14 -08:00
Michał Kępień fabeb165af Input: sparse-keymap - use a managed allocation for keymap copy
Some platform drivers use devm_input_allocate_device() together with
sparse_keymap_setup() in their .probe callbacks.  While using the former
simplifies error handling, using the latter necessitates calling
sparse_keymap_free() in the error path and upon module unloading to
avoid leaking the copy of the keymap allocated by sparse_keymap_setup().

To help prevent such leaks and enable simpler error handling, make
sparse_keymap_setup() use devm_kmemdup() to create the keymap copy so
that it gets automatically freed.

This works for both managed and non-managed input devices as the keymap
is freed after the last reference to the input device is dropped.

Note that actions previously taken by sparse_keymap_free(), i.e. taking
the input device's mutex and zeroing its keycode and keycodemax fields,
are now redundant because the managed keymap will always be freed after
the input device is unregistered.

Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-08 14:28:53 -08:00
Guan Ben fad358a06c Input: pwm-beeper - support customized freq for SND_BELL
Extend the pwm-beeper driver to support customized frequency for SND_BELL
from device properties.

Signed-off-by: Guan Ben <ben.guan@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-07 10:39:23 -08:00
Pali Rohár a3cbfd56ff Input: alps - cleanup alps_model_data
Sort all devices in alps_model_data by signature and remove
command_mode_resp which is not used anymore.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-07 09:49:30 -08:00
Pali Rohár c9815232c3 Input: alps - warn about unsupported ALPS V9 touchpad
Support for devices with ALPS_PROTO_V9 is not implemented yet but we can
detect these alps touchpads and warn users about it.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-07 09:49:29 -08:00
Pali Rohár 09c398bc01 Input: alps - move ALPS_PROTO_V4 out of alps_model_data table
Like for other protocols create alps_v4_protocol_data and use it in
alps_identify() function.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-07 09:49:28 -08:00
Kai-Heng Feng 45838660e3 Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000
The aux port does not get detected without noloop quirk, so external PS/2
mouse cannot work as result.

The PS/2 mouse can work with this quirk.

BugLink: https://bugs.launchpad.net/bugs/1591053
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-07 09:47:35 -08:00
Benjamin Tissoires 522214d9be Input: rmi4 - f30: detect INPUT_PROP_BUTTONPAD from the button count
INPUT_PROP_BUTTONPAD is currently only set through the platform data.
The RMI4 header doc says that this property is there to force the
buttonpad property, so we also need to detect it by looking at
the exported buttons count.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-01 10:01:56 -08:00
Dmitry Torokhov 4f95963558 Input: ad7879 - do not manipulate capability bits directly
Instead of manipulating capabilities bits of input device directly, let's
use input_set_capability() API.

Also, stop setting ABS_X/Y bits explicitly as input_set_abs_params() does
this for us.

Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-01 09:42:45 -08:00
Dmitry Torokhov 3a97c3d16b Input: ad7879 - try parsing properties on non-DT systems
We have switched the driver to use generic device properties API, so there
is no need to check for presence of DT node before trying parse properties.

Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-01 09:42:44 -08:00
Dmitry Torokhov 4e34025b34 Input: ad7879 - return plain error code from ad7879_probe()
With the switch to devm, there is no need for ad7879_probe() to return the
touchscreen structure, we can use plain error code. This also fixes issue
introduced with devm concersion, where we returned 0 on success (which
worked OK since IS_ERR(0) would not trigger, but was not correct
regardless).

Fixes: 381f688eee3d ("Input: ad7879 - use more devm interfaces")
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-01 09:42:44 -08:00
Dmitry Torokhov af160c542e Input: ad7879 - make sure we set up drvdata
The conversion to devm accidentally removed setting up of I2C client data
upon successful probe of the touchscreen. Let's move this setting into the
core, so we do not forger about it again.

Fixes: 381f688eee3d ("Input: ad7879 - use more devm interfaces")
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-01 09:42:43 -08:00
Alexey Dobriyan 5b5e0928f7 lib/vsprintf.c: remove %Z support
Now that %z is standartised in C99 there is no reason to support %Z.
Unlike %L it doesn't even make format strings smaller.

Use BUILD_BUG_ON in a couple ATM drivers.

In case anyone didn't notice lib/vsprintf.o is about half of SLUB which
is in my opinion is quite an achievement.  Hopefully this patch inspires
someone else to trim vsprintf.c more.

Link: http://lkml.kernel.org/r/20170103230126.GA30170@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Randy Dunlap a4deb14712 Input: ad7879 - add header file to fix ad7879.c build errors
Add header file to fix these build errors:

../drivers/input/touchscreen/ad7879.c: In function 'ad7879_parse_dt':
../drivers/input/touchscreen/ad7879.c:505:2: error: implicit declaration of function 'device_property_read_u32' [-Werror=implicit-function-declaration]
  err = device_property_read_u32(dev, "adi,resistance-plate-x", &tmp);
  ^
../drivers/input/touchscreen/ad7879.c:512:2: error: implicit declaration of function 'device_property_read_u8' [-Werror=implicit-function-declaration]
  device_property_read_u8(dev, "adi,first-conversion-delay",
  ^
../drivers/input/touchscreen/ad7879.c:521:2: error: implicit declaration of function 'device_property_read_bool' [-Werror=implicit-function-declaration]
  ts->swap_xy = device_property_read_bool(dev, "touchscreen-swapped-x-y");
  ^

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-25 10:50:04 -08:00
Dmitry Torokhov a685f48cf6 Merge branch 'tsc2007' into next
Bring in TSC2007 improvements.
2017-02-23 09:22:10 -08:00
Dmitry Torokhov 9dd46c0253 Input: tca8418_keypad - remove double read of key event register
There is no need to tread the same register twice in a row.

Fixes: ea4348c846 ("Input: tca8418_keypad - hide gcc-4.9 -Wmaybe-un ...")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-23 09:21:30 -08:00
Michael Hennerich 2581e5d104 Input: ad7879 - update MODULE_AUTHOR email address
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-23 09:21:29 -08:00
Michael Hennerich b4816f794d Input: ad7879-spi - remove bits_per_word = 16 enforcement
Using regmap this is no longer required.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-23 09:21:28 -08:00
Dmitry Torokhov b621e30be6 Input: ad7879 - allow exporting AUX/VBAT/GPIO pin via device property
Up until now only platforms using legacy platform data were able to switch
AUX/VBAT/GPIO pin in GPIO mode and use it as regular GPIO line. Let's
allow platforms using generic device properties to do the same.

Reviewed-by: Michael Hennerich <michael.hennerich@analog.com>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-23 09:21:27 -08:00
Dmitry Torokhov 069b2e2cd7 Input: ad7879 - use more devm interfaces
gpiochip_add now has a managed version, and we can remove sysfs attribute
group via devm_add_action_or_reset (at least until we have devm version of
sysfs_create_group). This allows us to get rid of ad7879_remove().

Reviewed-by: Michael Hennerich <michael.hennerich@analog.com>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-23 09:21:26 -08:00
Dmitry Torokhov 404a24c35d Input: ad7879 - convert to use regmap
Instead of rolling our own infrastructure to provide uniform access to I2C
and SPI buses, let's switch to using regmap.

Reviewed-by: Michael Hennerich <michael.hennerich@analog.com>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-23 09:21:26 -08:00
Linus Torvalds 1ec5c1867a This is the bulk of GPIO changes for the v4.11 cycle
Core changes:
 
 - Augment fwnode_get_named_gpiod() to configure the GPIO pin
   immediately after requesting it like all other APIs do.
   This is a treewide change also updating all users.
 
 - Pass a GPIO label down to gpiod_request() from
   fwnode_get_named_gpiod(). This makes debugfs and the userspace
   ABI correctly reflect the current in-kernel consumer of a pin
   taken using this abstraction. This is a treewide change also
   updating all users.
 
 - Rename devm_get_gpiod_from_child() to
   devm_fwnode_get_gpiod_from_child() to reflect the fact that this
   function is operating on a fwnode object. This is a treewide
   change also updating all users.
 
 - Make it possible to take multiple GPIOs in a single hog of device
   tree hogs.
 
 - The refactorings switching GPIO chips to use the .set_config()
   callback using standard pin control properties and providing
   a backend into the pin control subsystem that were also merged
   into the pin control tree naturally appear here too.
 
 Testing instrumentation:
 
 - A whole slew of cleanups and improvements to the mockup GPIO
   driver. We now have an extended userspace test exercising the
   subsystem, and we can inject interrupts etc from userspace
   to fully test the core GPIO functionality.
 
 New drivers:
 
 - New driver for the Cortina Systems Gemini GPIO controller.
 
 - New driver for the Exar XR17V352/354/358 chips.
 
 - New driver for the ACCES PCI-IDIO-16 PCI GPIO card.
 
 Driver changes:
 
 - RCAR: set the irqchip parent device, add fine-grained runtime
   PM support.
 
 - pca953x: support optional RESET control line on the chip.
 
 - DaVinci: cleanups and simplifications. Add support for multiple
   instances.
 
 - .set_multiple() and naming of lines on more or less all of the
   ISA/PCI GPIO controllers.
 
 - mcp23s08: refactored to use regmap as a first step to further
   rewrites and modernizations.
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Merge tag 'gpio-v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.11 cycle

  Core changes:

   - Augment fwnode_get_named_gpiod() to configure the GPIO pin
     immediately after requesting it like all other APIs do. This is a
     treewide change also updating all users.

   - Pass a GPIO label down to gpiod_request() from
     fwnode_get_named_gpiod(). This makes debugfs and the userspace ABI
     correctly reflect the current in-kernel consumer of a pin taken
     using this abstraction. This is a treewide change also updating all
     users.

   - Rename devm_get_gpiod_from_child() to
     devm_fwnode_get_gpiod_from_child() to reflect the fact that this
     function is operating on a fwnode object. This is a treewide change
     also updating all users.

   - Make it possible to take multiple GPIOs in a single hog of device
     tree hogs.

   - The refactorings switching GPIO chips to use the .set_config()
     callback using standard pin control properties and providing a
     backend into the pin control subsystem that were also merged into
     the pin control tree naturally appear here too.

  Testing instrumentation:

   - A whole slew of cleanups and improvements to the mockup GPIO
     driver. We now have an extended userspace test exercising the
     subsystem, and we can inject interrupts etc from userspace to fully
     test the core GPIO functionality.

  New drivers:

   - New driver for the Cortina Systems Gemini GPIO controller.

   - New driver for the Exar XR17V352/354/358 chips.

   - New driver for the ACCES PCI-IDIO-16 PCI GPIO card.

  Driver changes:

   - RCAR: set the irqchip parent device, add fine-grained runtime PM
     support.

   - pca953x: support optional RESET control line on the chip.

   - DaVinci: cleanups and simplifications. Add support for multiple
     instances.

   - .set_multiple() and naming of lines on more or less all of the
     ISA/PCI GPIO controllers.

   - mcp23s08: refactored to use regmap as a first step to further
     rewrites and modernizations"

* tag 'gpio-v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (61 commits)
  gpio: reintroduce devm_get_gpiod_from_child()
  gpio: pci-idio-16: Fix PCI BAR index
  gpio: pci-idio-16: Fix PCI device ID code
  gpio: mockup: implement event injecting over debugfs
  gpio: mockup: add a dummy irqchip
  gpio: mockup: implement naming the lines
  gpio: mockup: code shrink
  gpio: mockup: readability tweaks
  gpio: Add GPIO support for the ACCES PCI-IDIO-16
  gpio: Add the devm_fwnode_get_index_gpiod_from_child() helper
  gpio: Rename devm_get_gpiod_from_child()
  gpio: mcp23s08: Select REGMAP/REGMAP_I2C to fix build error
  gpio: ws16c48: Add support for GPIO names
  gpio: gpio-mm: Add support for GPIO names
  gpio: 104-idio-16: Add support for GPIO names
  gpio: 104-idi-48: Add support for GPIO names
  gpio: 104-dio-48e: Add support for GPIO names
  gpio: ws16c48: Remove unnecessary driver_data set
  gpio: gpio-mm: Remove unnecessary driver_data set
  gpio: 104-idio-16: Remove unnecessary driver_data set
  ...
2017-02-23 08:46:04 -08:00
H. Nikolaus Schaller db4572ff0e Input: tsc2007 - correctly report pressure and not resistance to user space
Previously, tsc2007 would report as ABS_PRESSURE:
0              for no pressure (resistance infinite)
high value     for soft pressure (high resistance)
low value      for firm pressure (lower resistance)

This does not matter for most applications (e.g. GUI, Menu, Scrolling etc.)
where the ABS_PRESSURE is ignored and only BTN_TOUCH is processed to detect
screen taps.

Only some special graphics applications read the pressure channel and they
will be mixed up by this non-monotonic relation.

So we fix it to become:
0              for no pressure (resistance infinite)
low value      for soft pressure (high resistance)
high value     for firm pressure (lower resistance)

While this patch changes the values reported to userspace, ABS_PRESSURE is
used rarely by userspace. Most software only relies on BTN_TOUCH (boolean),
which is not affected by this patch. Some graphics software makes use of
the interface and does not work correctly with the currently used inverted
behaviour.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-22 23:55:09 -08:00
H. Nikolaus Schaller deec586d4f Input: tsc2007 - rename function tsc2007_calculate_pressure
Rename tsc2007_calculate_pressure to tsc2007_calculate_resistance because
that is what it does.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-22 23:55:07 -08:00
Dmitry Torokhov c61ebe83e7 Input: tsc2007 - switch to using input_set_capability()
Do not manipulate evbits/keybits directly, use helper for that.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-22 23:48:13 -08:00
Dmitry Torokhov 6e11617fcf Merge branch 'next' into for-linus
Prepare input updates for 4.11 merge window.
2017-02-20 15:16:02 -08:00
Javier Martinez Canillas a1b5359271 Input: zet6223 - export OF device ID as module aliases
The I2C core always reports a MODALIAS of the form i2c:<foo> even if the
device was registered via OF, this means that exporting the OF device ID
table device aliases in the module is not needed. But in order to change
how the core reports modaliases to user-space, it's better to export it.

Before this patch:

$ modinfo drivers/input/touchscreen/zet6223.ko | grep alias
alias:          i2c:zet6223

After this patch:

$ modinfo drivers/input/touchscreen/zet6223.ko | grep alias
alias:          of:N*T*Czeitec,zet6223C*
alias:          of:N*T*Czeitec,zet6223
alias:          i2c:zet6223

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-20 15:12:26 -08:00
H. Nikolaus Schaller f14434040c Input: tsc2007 - add iio interface to read external ADC input and temperature
The tsc2007 chip not only has a resistive touch screen controller but
also an external AUX adc imput which can be used for an ambient
light sensor, battery voltage monitoring or any general purpose.

Additionally it can measure the chip temperature.

This extension provides an iio interface for these adc channels.

Since it is not wasting much resources and is very straightforward,
we simply provide all other adc channels as optional iio interfaces
as weel. This can be used for debugging or special applications.

This patch also splits the tsc2007 driver in several source files:
tsc2007.h -- constants, structs and stubs
tsc2007_core.c -- functional parts of the original driver
tsc2007_iio.c -- the optional iio stuff

Makefile magic allows to conditionally link the iio stuff
if CONFIG_IIO=y or =m in a way that it works with
CONFIG_TOUCHSCREEN_TSC2007=m.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-17 13:21:55 -08:00
H. Nikolaus Schaller 934df23171 Input: tsc2007 - check for presence and power down tsc2007 during probe
1. check if chip is really present and don't succeed if it isn't.
2. if it succeeds, power down the chip until accessed

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-17 13:21:47 -08:00
Dmitry Torokhov b0c9d043d4 Subsequent immutable branch between MFD and Input due for the v4.11 merge window
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Merge tag 'ib-mfd-input-v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next

Merge in cros-ec changes applied through MFD branch to resolve
conflicts.
2017-02-15 09:24:23 -08:00
Gwendal Grignou 6ccc3a3381 input: cros_ec_keyb: Add Tablet Mode switch
Add switch to report tablet mode.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Enric Balletbo Serra <enric.balletbo@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-02-13 09:25:19 +00:00
IHARA Hiroka 722c5ac708 Input: elan_i2c - add ELAN0605 to the ACPI table
ELAN0605 has been confirmed to be a variant of ELAN0600, which is
blacklisted in the hid-core to be managed by elan_i2c. This device can be
found in Lenovo ideapad 310s (80U4000).

Signed-off-by: Hiroka IHARA <ihara_h@live.jp>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-12 18:36:49 -08:00
Dmitry Torokhov d0d89493bf Input: tsc2004/5 - switch to using generic device properties
Instead of supporting legacy platform data (of which we have no mainline
users) and OF-based properties, let's switch to generic device properties.
This will still allow legacy boards to use the driver (by defining property
sets and attaching them to the drivers) and will simplify probe and make
driver usable on ACPI-based systems as well.

Reviewed-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-12 14:55:09 -08:00
Dmitry Torokhov f7bf6f5867 Input: tsc2004/5 - fix regulator handling
In case of an optional regulator missing, regulator core will return
ERR_PTR(-ENOENT) and not NULL, so the check for missing regulator is
incorrect. Also, the regulator is not optional, it may simply be missing
from platform description, so let's use devm_regulator_get() and rely on
regulator core to give us dummy supply when real one is not available.

Fixes: d257f2980f ("Input: tsc2005 - convert to gpiod")
Acked-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-12 14:55:08 -08:00
Dmitry Torokhov 449aa83e69 Input: tsc2005 - add OF device table
To be prepared for SPI module loading using full compatible strings from
device tree, let's add OF module device table data.

Reviewed-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-12 14:55:08 -08:00
Jelle van der Waa 83f66a6f08 Input: add driver for Zeitec ZET6223
This is a basic driver for the Zeitec ZET6223 I2C touchscreen
controllers. The driver does not support firmware loading, which is not
required for all tablets which contain this chip.

Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-09 13:54:51 -08:00
Raphael Assenat 45536d373a Input: joydev - do not report stale values on first open
Postpone axis initialization to the first open instead of doing it
in joydev_connect. This is to make sure the generated startup events
are representative of the current joystick state rather than what
it was when joydev_connect() was called, potentially much earlier.
Once the first user is connected to joydev node we'll be updating
joydev->abs[] values and subsequent clients will be getting correct
initial states as well.

This solves issues with joystick driven menus that start scrolling
up each time they are started, until the user moves the joystick to
generate events. In emulator menu setups where the menu program is
restarted every time the game exits, the repeated need to move the
joystick to stop the unintended scrolling gets old rather quickly...

Signed-off-by: Raphael Assenat <raph@raphnet.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-09 13:29:04 -08:00
Benjamin Tissoires 81dec809aa Input: synaptics-rmi4 - forward upper mechanical buttons to PS/2 guest
On the latest series of ThinkPads, the button events for the TrackPoint
are reported through the touchpad itself as opposed to the TrackPoint
device. In order to report these buttons properly, we need to forward
them to the TrackPoint device and notify psmouse to send the button
presses/releases.

Signed-off-by: Lyude Paul <thatslyude@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-09 13:01:34 -08:00
Dmitry Torokhov bf3e8502ee Input: synaptics-rmi4 - clean up F30 implementation
This patch does several cleanup changes to F30 code

- switch to using BIT() macro
- use DIV_ROUND_UP() where appropriate
- factor out code setting up and reporting buttons
- use single loop when reporting buttons: arithmetic is cheap compared to
  conditionals and associated branch misprediction.

Tested-By: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-09 13:01:33 -08:00
Dmitry Torokhov bf23cfc343 Input: synaptics - use SERIO_OOB_DATA to handle trackstick buttons
Instead of using custom method of "passing" extended buttons from the
touchpad to trackstick, let's switch to the newly introduced SERIO_OOB_DATA
channel.

Tested-By: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-09 13:01:32 -08:00
Benjamin Tissoires 19ba1eb15a Input: psmouse - add a custom serio protocol to send extra information
The tracksticks on the Lenovo thinkpads have their buttons connected
through the touchpad device. We already fixed that in synaptics.c, but
when we switch the device into RMI4 mode to have proper support, the
pass-through functionality can't deal with them easily.

We add a new PS/2 flag and protocol designed for psmouse.  The RMI4 F03
pass-through can then emit a special set of commands to notify psmouse the
state of the buttons.

This patch implements the protocol in psmouse, while an other will
do the same for rmi4-f03.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-09 11:43:15 -08:00
Douglas Anderson cdd7950e7a input: cros_ec_keyb: Add non-matrix buttons and switches
On some newer boards using mkbp we're hooking up non-matrix buttons and
switches to the EC but NOT to the main application processor.

Let's add kernel support to handle this.  Rather than creating a whole
new input driver, we'll continue to use cros_ec_keyb and just report the
new keys.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-02-08 11:36:23 +00:00
Arnd Bergmann 413d373267 Input: synaptics-rmi4 - select 'SERIO' when needed
With CONFIG_SERIO=m, we get a build error for the rmi4-f03 driver,
added in linux-4.10:

warning: (HID_RMI) selects RMI4_F03 which has unmet direct dependencies (!UML && INPUT && RMI4_CORE && (SERIO=y || RMI4_CORE=SERIO))
drivers/input/built-in.o: In function `rmi_f03_attention':
rmi_f03.c:(.text+0xcfe0): undefined reference to `serio_interrupt'
rmi_f03.c:(.text+0xd055): undefined reference to `serio_interrupt'
drivers/input/built-in.o: In function `rmi_f03_remove':
rmi_f03.c:(.text+0xd115): undefined reference to `serio_unregister_port'
drivers/input/built-in.o: In function `rmi_f03_probe':
rmi_f03.c:(.text+0xd209): undefined reference to `__serio_register_port'

An earlier patch tried to fix this, but missed the HID_RMI driver that
does a 'select' on the F03 backend.

This adds a hidden Kconfig symbol that enforces 'serio' to be enabled
when RMI4-F03 is, which covers all cases.

Fixes: d7ddad0acc ("Input: synaptics-rmi4 - fix F03 build error when serio is module")
Fixes: c5e8848fc9 ("Input: synaptics-rmi4 - add support for F03")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-07 14:31:45 -08:00
Wei Yongjun e78395334b Input: synaptics-rmi4 - fix error return code in rmi_probe_interrupts()
Fix to return error code -ENOMEM from the devm_kzalloc() error handling
case instead of 0, as done elsewhere in this function.

Fixes: 6bd0dcfacf ("Input: synaptics-rmi4 - factor out functions
from probe")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-07 14:23:43 -08:00
Cameron Gutman a1fbf5bbef Input: xpad - restore LED state after device resume
Set the LED_CORE_SUSPENDRESUME flag on our LED device so the
LED state will be automatically restored by LED core on resume.

Since Xbox One pads stop flashing only when reinitialized, we'll
send them the initialization packet so they calm down too.

Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-06 19:32:49 -08:00
Dmitry Torokhov d5e6e0fa44 Merge branch 'synaptics-rmi4' into next
Bring in latest RMI4 support in preparation to the merge window.
2017-02-06 14:17:39 -08:00
Benjamin Tissoires f32361b71a Input: synaptics-rmi4 - add rmi_find_function()
If a function needs to communicate with an other, it's better to have
a way to retrieve this other.

Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-06 14:15:42 -08:00
Cameron Gutman 57b8443d3e Input: xpad - fix stuck mode button on Xbox One S pad
The Xbox One S requires an ack to its mode button report, otherwise it
continuously retransmits the report. This makes the mode button appear to
be stuck down after it is pressed for the first time.

Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-06 14:15:15 -08:00
Boris Brezillon 4b0947974e gpio: Rename devm_get_gpiod_from_child()
Rename devm_get_gpiod_from_child() into
devm_fwnode_get_gpiod_from_child() to reflect the fact that this
function is operating on a fwnode object.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-02-04 21:27:26 +01:00
Dmitry Torokhov 5ec69524d4 Input: joydev - use clamp() macro
We have a nice macro ensuring that the value is within certain range, let's
use it instead of open-coding.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-01 10:39:40 -08:00
Dmitry Torokhov 6ecfe51b40 Input: refuse to register absolute devices without absinfo
If device is supposed to send absolute events (i.e. EV_ABS bit is set in
dev->evbit) but dev->absinfo is not allocated, then the driver has done
something wrong, and we should not register such device. Otherwise we'll
crash later, when driver tries to send absolute event.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-01 10:33:21 -08:00
Dmitry Torokhov 601bbbe051 Input: uinput - fix crash when mixing old and new init style
If user tries to initialize uinput device mixing old and new style
initialization (i.e. using old UI_SET_ABSBIT instead of UI_ABS_SETUP,
we forget to allocate input->absinfo and will crash when trying to send
absolute events:

        ioctl(ui, UI_DEV_SETUP, &us);
        ioctl(ui, UI_SET_PHYS, "Test");

        ioctl(ui, UI_SET_EVBIT, EV_ABS);
        ioctl(ui, UI_SET_ABSBIT, ABS_X);
        ioctl(ui, UI_SET_ABSBIT, ABS_Y);
        ioctl(ui, UI_DEV_CREATE, 0);

Reported-by: Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=191811
Fixes: fbae10db09 ("Input: uinput - rework ABS validation")
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-01 10:33:11 -08:00
Nick Dyer ce363f0dec Input: synaptics-rmi4 - add sysfs interfaces for hardware IDs
These attributes provide various bits of information which may be enumerated
under the RMI4 protocol to user space.

This may be useful for displaying the particular version which is in use, or
selecting the correct firmware to flash.

Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-31 15:51:22 -08:00
Nick Dyer 5a89916df2 Input: synaptics-rmi4 - add sysfs attribute update_fw_status
The attribute returns the percentage complete. If the firmware update fails, it
reports a negative error code.

Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-31 15:51:21 -08:00
Dmitry Torokhov 73d8ef7600 Input: mousedev - stop offering PS/2 to userspace by default
Evdev interface has been available for many years and by now everyone
is switched to using it, so let's stop offering /dev/input/mouseN
and /dev/psaux by default.

Acked-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-31 11:31:49 -08:00
Dmitry Torokhov 8b1a315b35 Input: tca8418 - switch to using generic device properties
Let's drop legacy platform data support (there are no users in mainline)
and switch to using generic device properties, which will make the driver
simpler (non-OF boards can use property sets to describe hardware).

Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-31 11:31:49 -08:00
Dmitry Torokhov aef01aad89 Input: matrix-keypad - switch to using generic device properties
Instead of being OF-specific, let's switch to using generic device
properties, which will make this code usable on ACPI, device tree and
legacy boards that use property sets.

As part of the change let's rename matrix_keypad_parse_of_params() to
matrix_keypad_parse_properties().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-31 11:31:48 -08:00
Christophe JAILLET 05e0be7c90 Input: synaptics-rmi4 - fix reversed conditions in enable/disable_irq_wake
These tests are reversed.  A warning should be displayed if an error is
returned, not on success.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-31 00:51:06 -08:00
Linus Walleij b1fe0cf06f Input: delete MPU3050 driver
The MPU3050 driver in the input subsystem has been superseded by a proper
IIO driver found in drivers/iio/gyro/mpu3050*.

Patches have been submitted to remove all defconfig and related references
to the old driver and replace this input driver with the IIO driver.

So delete the input driver. Input was never a good fit for sensors anyway.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-31 00:18:07 -08:00
Alexander Stein b2987d7438 gpio: Pass GPIO label down to gpiod_request
Currently all users of fwnode_get_named_gpiod() have no way to
specify a label for the GPIO. So GPIOs listed in debugfs are shown
with label "?". With this change a proper label is used.

Also adjust all users so they can pass a label, properly retrieved
from device tree properties.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-26 09:59:52 +01:00
Andy Shevchenko a264d10ff4 gpiolib: Convert fwnode_get_named_gpiod() to configure GPIO
Make fwnode_get_named_gpiod() consistent with the rest of
gpiod_get() like API, i.e. configure GPIO pin immediately after
request.

Besides obvious clean up it will help to configure pins based
on firmware provided resources.

Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-26 09:59:32 +01:00
Bhumika Goyal f719315b52 Input: constify device_type structures
Declare device_type structures as const as they are only stored in the
type field of a device structure. This field is of type const, so add
const to declaration of device_type structures.

File size before:
   text	   data	    bss	    dec	    hex	filename
  17184	   1344	     80	  18608	   48b0	drivers/input/input.o

File size after:
   text	   data	    bss	    dec	    hex	filename
  17248	   1280	     80	  18608	   48b0	drivers/input/input.o

File size before:
   text	   data	    bss	    dec	    hex	filename
   2355	    384	      8	   2747	    abb	drivers/input/rmi4/rmi_bus.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   2483	    264	      8	   2755	    ac3	drivers/input/rmi4/rmi_bus.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-24 12:38:49 -08:00
Dmitry Torokhov 0cce284537 Linux 4.10-rc5
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Merge tag 'v4.10-rc5' into next

Sync up with mainline to bring up improvements in various subsystems.
2017-01-24 12:37:43 -08:00
Manuel Lauss 3f5c34c6d4 Input: wm97xx - make missing platform data non-fatal
Commit 6480af4915 ("power_supply: wm97xx_battery: use
power_supply_get_drvdata") made wm97xx platform data mandatory, although
it's still optional.

This patch fixes an oops during driver probe on one of my MIPS boards with
a wm9712.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-24 10:27:34 -08:00
Guenter Roeck cefb26d4b3 Input: touchscreen - drop unnecessary calls to input_set_drvdata
Since there is no call to dev_get_drvdata() or input_get_drvdata(),
the call to input_set_drvdata() is unnecessary and can be dropped.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 17:22:31 -08:00
Guenter Roeck 86178c8634 Input: dm355evm_keys - drop unnecessary call to input_set_drvdata
Since there is no call to dev_get_drvdata() or input_get_drvdata(),
the call to input_set_drvdata() is unnecessary and can be dropped.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 17:22:29 -08:00
Guenter Roeck 555c765b0c Input: mouse - drop unnecessary calls to input_set_drvdata
Since there is no call to dev_get_drvdata() or input_get_drvdata(),
the call to input_set_drvdata() is unnecessary and can be dropped.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 17:22:28 -08:00
Guenter Roeck 0ff44b0fd3 Input: maplecontrol - drop unnecessary call to input_set_drvdata
Since there is no call to dev_get_drvdata() or input_get_drvdata(),
the call to input_set_drvdata() is unnecessary and can be dropped.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 17:22:27 -08:00
Guenter Roeck 14fdb924af Input: keyboard - drop unnecessary calls to input_set_drvdata
If there is no call to dev_get_drvdata() or input_get_drvdata(),
the call to input_set_drvdata() is unnecessary and can be dropped.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 17:22:25 -08:00
Marcos Paulo de Souza 2ea9c2362b Input: i8042 - add dbg msg when a command can't write its parameter
This can happen in cases like bug #102951[1], so add a proper debug msg
as done in wait_read. Also, change wait_read debug message to differ from
wait_write.

[1] https://bugzilla.kernel.org/show_bug.cgi?id=102951

Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 14:32:35 -08:00
Dmitry Torokhov a5e5da2b6f Input: max11801_ts - drop call to input_set_drvdata()
Nobody calls input_get_drvdata() so setting it is not required.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 14:32:34 -08:00
Dmitry Torokhov 2de8b4110c Input: pwm-beeper - switch to using "atomic" PWM API
The "atomic" API allows us to configure PWM period and duty cycle and
enable it in one call.

Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 00:26:36 -08:00
David Lechner 9e54924432 Input: pwm-beeper - add optional amplifier regulator
This adds an optional regulator to the pwm-beeper device. This regulator
acts as an amplifier. The amplifier is only enabled while beeping in order
to reduce power consumption.

Tested on LEGO MINDSTORMS EV3, which has a speaker connected to PWM through
an amplifier.

Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 00:23:22 -08:00
David Lechner 6248188140 Input: pwm-beeper - suppress error message on probe defer
This suppress printing an error message when pwm_get returns -EPROBE_DEFER.
Otherwise you get a bunch of noise in the kernel log.

Signed-off-by: David Lechner <david@lechnology.com>
Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 00:23:20 -08:00
Dmitry Torokhov e9728f0dd7 Input: pwm-beeper - fix race when suspending
Usually userspace sends SND_BELL and SND_TONE events, and by the time
pwm_beeper_suspend() runs userpsace is already frozen, but theoretically
in-kernel users may send these events too, and that may cause
pwm_beeper_event() scheduling another work after we canceled it.

Let's introduce a "suspended" flag and check it in pwm_beeper_event() to
avoid this race.

Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 00:23:19 -08:00
Dmitry Torokhov 48a55d7de7 Input: pwm-beeper - use input_set_capability()
Instead of manipulating capability bits directly, let's use
input_set_capability() API.

Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 00:23:18 -08:00
Dmitry Torokhov bcf4b0460b Input: pwm-beeper - switch to using managed resources
Use of managed resources (devm) simplifies error handling and tear down
of the driver.

Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 00:23:17 -08:00
Dmitry Torokhov 2031717544 Input: pwm-beeper - remove calls to legacy pwm_request API
There are no more users of pwm-beeper driver in mainline relying on
this legacy API, so let's remove it and simplify the driver code.

Acked-by: Thierry Reding <thierry.reding@gmail.com>
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22 00:23:16 -08:00
Guenter Roeck ed77bdf4e4 Input: synaptics-rmi4 - use local variables consistently
If a function declares a variable to access a structure element,
use it conssistently.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-21 23:57:58 -08:00
Guenter Roeck 8010e0db70 Input: misc - drop empty remove functions
Empty remove functions don't serve a useful purpose and can be removed.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-21 23:53:34 -08:00