linux-stable.git/drivers/platform/chrome, branch v4.10.2

platform/chrome: cros_ec_dev - Register cros-ec sensors

2016-10-25T17:20:32+00:00

Check whether the ChromeOS Embedded Controller is a sensor hub and in
such case issue a command to get the number of sensors and register them
all.

Signed-off-by: Gwendal Grignou 
Signed-off-by: Enric Balletbo i Serra 
Reviewed-by: Guenter Roeck 
Acked-by: Olof Johansson 
Signed-off-by: Jonathan Cameron

platform/chrome: Introduce a new function to check EC features.

2016-10-25T17:20:29+00:00

Use the EC_CMD_GET_FEATURES message to check the supported features for
each MCU.

Signed-off-by: Vincent Palatin 
[tomeu: adapted to changes in mainline]
Signed-off-by: Tomeu Vizoso 
[enric: remove references to USB PD feature and do it more generic]
Signed-off-by: Enric Balletbo i Serra 
Reviewed-by: Guenter Roeck 
For the MFD changes:
  Acked-by: Lee Jones 
Signed-off-by: Jonathan Cameron

mfd: cros_ec: Add MKBP event support

2016-08-31T09:50:59+00:00

Newer revisions of the ChromeOS EC add more events besides the keyboard
ones. So handle interrupts in the MFD driver and let consumers register
for notifications for the events they might care.

To keep backward compatibility, if the EC doesn't support MKBP event, we
fall back to the old MKBP key matrix host command.

Cc: Randall Spangler 
Cc: Vincent Palatin 
Cc: Benson Leung 
Signed-off-by: Vic Yang 
Signed-off-by: Tomeu Vizoso 
Tested-by: Enric Balletbo i Serra 
Acked-by: Olof Johansson 
Signed-off-by: Lee Jones

Merge tag 'pwm/for-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

2016-08-06T04:01:33+00:00

Pull pwm updates from Thierry Reding:
 "This set of changes improve some aspects of the atomic API as well as
  make use of this new API in the regulator framework to allow properly
  dealing with critical regulators controlled by a PWM.

  Aside from that there's a bunch of updates and cleanups for existing
  drivers, as well as the addition of new drivers for the Broadcom
  iProc, STMPE and ChromeOS EC controllers"

* tag 'pwm/for-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (44 commits)
  regulator: pwm: Document pwm-dutycycle-unit and pwm-dutycycle-range
  regulator: pwm: Support extra continuous mode cases
  pwm: Add ChromeOS EC PWM driver
  dt-bindings: pwm: Add binding for ChromeOS EC PWM
  mfd: cros_ec: Add EC_PWM function definitions
  mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper
  pwm: atmel: Use of_device_get_match_data()
  pwm: atmel: Fix checkpatch warnings
  pwm: atmel: Fix disabling of PWM channels
  dt-bindings: pwm: Add R-Car H3 device tree bindings
  pwm: rcar: Use ARCH_RENESAS
  pwm: tegra: Add support for Tegra186
  dt-bindings: pwm: tegra: Add compatible string for Tegra186
  pwm: tegra: Avoid overflow when calculating duty cycle
  pwm: tegra: Allow 100 % duty cycle
  pwm: tegra: Add support for reset control
  pwm: tegra: Rename mmio_base to regs
  pwm: tegra: Remove useless padding
  pwm: tegra: Drop NUM_PWM macro
  pwm: lpc32xx: Set PWM_PIN_LEVEL bit to default value
  ...

mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper

2016-07-25T08:32:23+00:00

So that callers of cros_ec_cmd_xfer() don't have to repeat boilerplate
code when checking for errors from the EC side.

Signed-off-by: Tomeu Vizoso 
Reviewed-by: Benson Leung 
Signed-off-by: Brian Norris 
Acked-by: Lee Jones 
Tested-by: Enric Balletbo i Serra 
Signed-off-by: Thierry Reding

platform/chrome: cros_ec_dev - double fetch bug in ioctl

2016-07-05T21:01:52+00:00

We verify "u_cmd.outsize" and "u_cmd.insize" but we need to make sure
that those values have not changed between the two copy_from_user()
calls.  Otherwise it could lead to a buffer overflow.

Additionally, cros_ec_cmd_xfer() can set s_cmd->insize to a lower value.
We should use the new smaller value so we don't copy too much data to
the user.

Reported-by: Pengfei Wang 
Fixes: a841178445bb ('mfd: cros_ec: Use a zero-length array for command data')
Signed-off-by: Dan Carpenter 
Reviewed-by: Kees Cook 
Tested-by: Gwendal Grignou 
Cc:  # v4.2+
Signed-off-by: Olof Johansson

Revert "platform/chrome: chromeos_laptop: Add Leon Touch"

2016-05-28T15:47:48+00:00

This reverts commit bff3c624dc7261a084a4d25a0b09c3fb0fec872a.

Board "Leon" is otherwise known as "Toshiba CB35" and we already have
the entry that supports that board as of this commit :
963cb6f platform/chrome: chromeos_laptop - Add Toshiba CB35 Touch

Remove this duplicate.

Signed-off-by: Benson Leung 
Signed-off-by: Olof Johansson

platform/chrome: chromeos_laptop - Add Elan touchpad for Wolf

2016-05-11T18:55:48+00:00

The upcoming Elan Wolf (Dell Chromebook 11) devices need to know to look
for Elan touchpads on the i2c bus so that they will be functional.

Based on the chromeos-kernel commit :
https://chromium-review.googlesource.com/198283

Signed-off-by: Charlie Mooney 
Signed-off-by: Benson Leung 
Signed-off-by: Olof Johansson

platform/chrome: chromeos_laptop - Add elan trackpad option for C720

2016-05-11T18:55:48+00:00

Add the elan trackpad to the Acer C720 (peppy) list, as it is an alternate
trackpad option. It may exist at i2c address 0x15.

Based on this change from the chromeos kernel :
https://chromium-review.googlesource.com/186253

Signed-off-by: Benson Leung 
Signed-off-by: Olof Johansson

platform/chrome: cros_ec_dev - Populate compat_ioctl

2016-05-11T18:55:48+00:00

compat_ioctl has to be populated for 32 bit userspace applications to work
with 64 bit kernels.

Signed-off-by: Guenter Roeck 
Tested-by: Brian Norris 
Signed-off-by: Olof Johansson