The node names for devices using the pwm-leds driver follow a certain naming scheme (now). Parent node name is not enforced, but recommended by DT project. DTC arch/arm/boot/dts/stm32mp157c-lxa-mc1.dt.yaml CHECK arch/arm/boot/dts/stm32mp157c-lxa-mc1.dt.yaml /home/alex/build/linux/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dt.yaml: led-rgb: 'led-blue', 'led-green', 'led-red' do not match any of the regexes: '^led(-[0-9a-f]+)?$', 'pinctrl-[0-9]+' From schema: /home/alex/src/linux/leds/Documentation/devicetree/bindings/leds/leds-pwm.yaml Signed-off-by: Alexander Dahl <post@xxxxxxxxxxx> --- Notes: v7 -> v8: * rebased on v5.10-rc1 * updated indexes and added comment (Ahmad Fatoum) v6 -> v7: * split up patch (one per sub arch) * added actual warnings to commit message arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts index 1e5333fd437f..5ed58110d963 100644 --- a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts +++ b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts @@ -36,34 +36,35 @@ stdout-path = &uart4; }; - led-act { + led-controller-0 { compatible = "gpio-leds"; - led-green { + led-0 { label = "mc1:green:act"; gpios = <&gpioa 13 GPIO_ACTIVE_LOW>; linux,default-trigger = "heartbeat"; }; }; - led-rgb { + led-controller-1 { compatible = "pwm-leds"; - led-red { + /* led-1 to led-3 are part of a single RGB led */ + led-1 { label = "mc1:red:rgb"; pwms = <&leds_pwm 1 1000000 0>; max-brightness = <255>; active-low; }; - led-green { + led-2 { label = "mc1:green:rgb"; pwms = <&leds_pwm 2 1000000 0>; max-brightness = <255>; active-low; }; - led-blue { + led-3 { label = "mc1:blue:rgb"; pwms = <&leds_pwm 3 1000000 0>; max-brightness = <255>; -- 2.20.1