[PATCHv2,0/7] Support inhibiting input devices

Userspace might want to implement a policy to temporarily disregard input
from certain devices, including not treating them as wakeup sources.

An example use case is a laptop, whose keyboard can be folded under the
screen to create tablet-like experience. The user then must hold the laptop
in such a way that it is difficult to avoid pressing the keyboard keys. It
is therefore desirable to temporarily disregard input from the keyboard,
until it is folded back. This obviously is a policy which should be kept
out of the kernel, but the kernel must provide suitable means to implement
such a policy.

Due to interactions with suspend/resume, a helper has been added for drivers
to decide if the device is being used or not (PATCH 1/7) and it has been
applied to relevant drivers (PATCH 2-5/7). Patches 2-5 are only being sent
to relevant mailing lists and maintainers.

PATCH 6/7 adds support for inhibiting input devices, while PATCH 7/7
provides an example how to convert a driver to take advantage of this
new feature. Patch 7/7 is only being sent to input mailing list and
maintainer.

This work is inspired by:

https://chromium.googlesource.com/chromiumos/third_party/kernel/+/45c2d7bb398f74adfae0017e20b224152fde3822

and

https://chromium.googlesource.com/chromiumos/third_party/kernel/+/4ce0e8a3697edb8fd071110b3af65014512061c7

v1..v2:
- added input_device_enabled() helper and used it in drivers (Dmitry)
- the fact of open() and close() being called in inhibit/uninhibit paths has
been emphasized in the commit message of PATCH 6/7 (Dmitry)

Andrzej Pietrasiewicz (5):
  Input: add input_device_enabled()
  Input: use input_device_enabled()
  ACPI: button: Use input_device_enabled() helper
  iio: adc: exynos: Use input_device_enabled()
  platform/x86: thinkpad_acpi: Use input_device_enabled()

Dmitry Torokhov (1):
  Input: elan_i2c: Support inhibiting

Patrik Fimml (1):
  Input: Add "inhibited" property

 drivers/acpi/button.c                       |   8 +-
 drivers/iio/adc/exynos_adc.c                |  11 +-
 drivers/input/input.c                       | 142 ++++++++++++++++++--
 drivers/input/joystick/xpad.c               |   4 +-
 drivers/input/keyboard/ep93xx_keypad.c      |   2 +-
 drivers/input/keyboard/gpio_keys.c          |   4 +-
 drivers/input/keyboard/imx_keypad.c         |   4 +-
 drivers/input/keyboard/ipaq-micro-keys.c    |   2 +-
 drivers/input/keyboard/lpc32xx-keys.c       |   4 +-
 drivers/input/keyboard/pmic8xxx-keypad.c    |   4 +-
 drivers/input/keyboard/pxa27x_keypad.c      |   2 +-
 drivers/input/keyboard/samsung-keypad.c     |   4 +-
 drivers/input/keyboard/spear-keyboard.c     |   8 +-
 drivers/input/keyboard/st-keyscan.c         |   4 +-
 drivers/input/keyboard/tegra-kbc.c          |   4 +-
 drivers/input/misc/drv260x.c                |   4 +-
 drivers/input/misc/drv2665.c                |   4 +-
 drivers/input/misc/drv2667.c                |   4 +-
 drivers/input/misc/gp2ap002a00f.c           |   4 +-
 drivers/input/misc/kxtj9.c                  |   4 +-
 drivers/input/misc/sirfsoc-onkey.c          |   2 +-
 drivers/input/mouse/elan_i2c_core.c         | 112 +++++++++++----
 drivers/input/mouse/navpoint.c              |   4 +-
 drivers/input/touchscreen/ad7879.c          |   6 +-
 drivers/input/touchscreen/atmel_mxt_ts.c    |   4 +-
 drivers/input/touchscreen/auo-pixcir-ts.c   |   8 +-
 drivers/input/touchscreen/bu21029_ts.c      |   4 +-
 drivers/input/touchscreen/chipone_icn8318.c |   4 +-
 drivers/input/touchscreen/cyttsp_core.c     |   4 +-
 drivers/input/touchscreen/eeti_ts.c         |   4 +-
 drivers/input/touchscreen/ektf2127.c        |   4 +-
 drivers/input/touchscreen/imx6ul_tsc.c      |   4 +-
 drivers/input/touchscreen/ipaq-micro-ts.c   |   2 +-
 drivers/input/touchscreen/iqs5xx.c          |   4 +-
 drivers/input/touchscreen/lpc32xx_ts.c      |   4 +-
 drivers/input/touchscreen/melfas_mip4.c     |   4 +-
 drivers/input/touchscreen/mms114.c          |   6 +-
 drivers/input/touchscreen/pixcir_i2c_ts.c   |   8 +-
 drivers/input/touchscreen/ucb1400_ts.c      |   4 +-
 drivers/input/touchscreen/wm97xx-core.c     |  14 +-
 drivers/input/touchscreen/zforce_ts.c       |   8 +-
 drivers/platform/x86/thinkpad_acpi.c        |   4 +-
 include/linux/input.h                       |  10 ++
 43 files changed, 336 insertions(+), 119 deletions(-)


base-commit: 2ef96a5bb12be62ef75b5828c0aab838ebb29cb8