This series aims to add a led-backlight driver, similar to pwm-backlight, but using a LED class device underneath. A few years ago (2015), Tomi Valkeinen posted a series implementing a backlight driver on top of a LED device: https://patchwork.kernel.org/patch/7293991/ https://patchwork.kernel.org/patch/7294001/ https://patchwork.kernel.org/patch/7293981/ The discussion stopped because Tomi lacked the time to work on it. This series takes it from there and implements the binding that was discussed in https://patchwork.kernel.org/patch/7293991/. In this new binding the backlight device is a child of the LED controller instead of being another platform device that uses a phandle to reference a LED. Jean-Jacques Hiblot (2): leds: of: create a child device if the LED node contains a "compatible" string devicetree: Update led binding Tomi Valkeinen (2): backlight: add led-backlight driver devicetree: Add led-backlight binding .../devicetree/bindings/leds/common.txt | 3 + .../video/backlight/led-backlight.txt | 39 ++++ drivers/leds/led-class.c | 16 ++ drivers/video/backlight/Kconfig | 7 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/led_bl.c | 217 ++++++++++++++++++ include/linux/leds.h | 11 + 7 files changed, 294 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/led-backlight.txt create mode 100644 drivers/video/backlight/led_bl.c -- 2.17.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
