user/sven/linux.git/drivers/platform/chrome, branch v4.9.5

mfd: cros_ec: Add MKBP event support

2016-08-31T09:50:59Z

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

2016-08-06T04:01:33Z

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

2016-07-25T08:32:23Z

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

2016-07-05T21:01:52Z

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"

2016-05-28T15:47:48Z

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

2016-05-11T18:55:48Z

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

2016-05-11T18:55:48Z

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

2016-05-11T18:55:48Z

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

platform/chrome: cros_ec_lightbar - use name instead of ID to hide lightbar attributes

2016-05-11T18:55:47Z

Lightbar attributes are hidden if the ID of the device is not 0 (the assumption being that 0 = cros_ec = might have a lightbar, 1 = cros_pd = hide); however, sometimes these devices get IDs 1 and 2 (or something else) instead of IDs 0 and 1. This prevents the lightbar attributes from appearing when they should. Proposed change is to instead check whether the name assigned to the device is CROS_EC_DEV_NAME (true for cros_ec, false for cros_pd). Signed-off-by: Clinton Sprain Signed-off-by: Olof Johansson

platform/chrome: cros_ec_dev - Fix security issue

2016-05-11T18:55:47Z

Prevent memory scribble by checking that ioctl buffer size parameters are sane. Without this check, on 32 bits system, if .insize = 0xffffffff - 20 and .outsize the amount to scribble, we would overflow, allocate a small amounts and be able to write outside of the malloc'ed area. Adding a hard limit allows argument checking of the ioctl. With the current EC, it is expected .insize and .outsize to be at around 512 bytes or less. Signed-off-by: Gwendal Grignou Signed-off-by: Olof Johansson