Il 25/07/22 11:57, Chen-Yu Tsai ha scritto:
n Thu, Jul 21, 2022 at 10:53 PM AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> wrote:Add a pwm-leds node to enable the PWM controlled keyboard backlight. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> --- arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi index ca9955a97f8f..9086a440a995 100644 --- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi @@ -4,6 +4,7 @@ */ #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/leds/common.h> #include "mt8195.dtsi" #include "mt6359.dtsi" @@ -31,6 +32,18 @@ dmic_codec: dmic-codec { wakeup-delay-ms = <50>; }; + led-controller { + compatible = "pwm-leds"; + + keyboard_backlight: keyboard-backlight { + default-state = "off"; + function = LED_FUNCTION_KBD_BACKLIGHT; + label = "cros_ec::kbd_backlight"; + max-brightness = <1023>; + pwms = <&cros_ec_pwm 3>; + }; + }; +This didn't work for me. However using "google,cros-kbd-led-backlight" under the EC did. That might be a better option.
Strange. But okay if there's a better option I'll check that out for v3. Cheers! Angelo
ChenYumemory@40000000 { device_type = "memory"; reg = <0 0x40000000 0 0x80000000>; -- 2.35.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
