[PATCH 0/4] pwm: add support for ChromeOS EC PWM

From: Brian Norris
Date: Fri May 27 2016 - 21:40:49 EST


This series adds support for the new ChromeOS EC PWM API, so we can control,
e.g., the backlight when it's attached to the EC. It uses Boris's latest
"atomic" hooks for the PWM API (i.e., the ->apply() callback), which were
recently merged.

It seems nice to have the cros_ec_cmd_xfer_status() helper, which we have
locally in the ChromeOS kernel, and which has been part of another larger patch


So I've picked it into this series as well. Obviously, I don't care which one
is taken, but AFAICT, Tomeu's USB PD series isn't extremely active right now.

As this touches MFD (sort of), drivers/platform/chrome/, and drivers/pwm/, I'm
not sure who it should all go through: Lee, Thierry, or Olof?

Anyway, please review.


Brian Norris (3):
mfd: cros_ec: add EC_PWM function definitions
doc: dt: pwm: add binding for ChromeOS EC PWM
pwm: add ChromeOS EC PWM driver

Tomeu Vizoso (1):
mfd: cros_ec: Add cros_ec_cmd_xfer_status helper

.../devicetree/bindings/pwm/google,cros-ec-pwm.txt | 25 +++
drivers/platform/chrome/cros_ec_proto.c | 15 ++
drivers/pwm/Kconfig | 7 +
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-cros-ec.c | 230 +++++++++++++++++++++
include/linux/mfd/cros_ec.h | 18 ++
include/linux/mfd/cros_ec_commands.h | 31 +++
7 files changed, 327 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/google,cros-ec-pwm.txt
create mode 100644 drivers/pwm/pwm-cros-ec.c