From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brian Norris Subject: [PATCH 0/4] pwm: add support for ChromeOS EC PWM Date: Fri, 27 May 2016 18:39:12 -0700 Message-ID: <1464399556-17222-1-git-send-email-briannorris@chromium.org> Return-path: Sender: linux-pwm-owner@vger.kernel.org To: Lee Jones , Thierry Reding , Olof Johansson Cc: linux-kernel@vger.kernel.org, Doug Anderson , Brian Norris , linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, Boris Brezillon , Stephen Barber , Sameer Nanda , Javier Martinez Canillas , Benson Leung , Enric Balletbo , Randall Spangler , Shawn Nematbakhsh , Dmitry Torokhov , Todd Broch , Gwendal Grignou , Tomeu Vizoso , Brian Norris List-Id: devicetree@vger.kernel.org Hi, 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 series: https://lkml.org/lkml/2016/4/12/342 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. Regards, Brian 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 -- 2.8.0.rc3.226.g39d4020