Some HW design implement multicolor LEDs with several monochromatic LEDs. Grouping the monochromatic LEDs allows to configure them in sync and use the triggers. The PWM multicolor LED driver implements such grouping but only for PWM-based LEDs. As this feature is also desirable for the other types of LEDs, this series implements it for any kind of LED device. changes v2->v3, only minor changes: - rephrased the Kconfig descritpion - make the sysfs interface of underlying LEDs read-only only if the probe is successful. - sanitize the header files - removed the useless call to dev_set_drvdata() - use dev_fwnode() to get the fwnode to the device. changes v1->v2: - Followed Rob Herrings's suggestion to make the dt binding much simpler. - Added a patch to store the color property of a LED in its class structure (struct led_classdev). Jean-Jacques Hiblot (6): devres: provide devm_krealloc_array() leds: class: simplify the implementation of devm_of_led_get() leds: provide devm_of_led_get_optional() leds: class: store the color index in struct led_classdev dt-bindings: leds: Add binding for a multicolor group of LEDs leds: Add a multicolor LED driver to group monochromatic LEDs Documentation/ABI/testing/sysfs-class-led | 9 ++ .../bindings/leds/leds-group-multicolor.yaml | 64 ++++++++ drivers/leds/led-class.c | 65 ++++++-- drivers/leds/rgb/Kconfig | 10 ++ drivers/leds/rgb/Makefile | 1 + drivers/leds/rgb/leds-group-multicolor.c | 152 ++++++++++++++++++ include/linux/device.h | 13 ++ include/linux/leds.h | 3 + 8 files changed, 303 insertions(+), 14 deletions(-) create mode 100644 Documentation/devicetree/bindings/leds/leds-group-multicolor.yaml create mode 100644 drivers/leds/rgb/leds-group-multicolor.c -- 2.25.1
