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| author | Nícolas F. R. A. Prado <nfraprado@collabora.com> | 2022-06-29 18:59:49 +0300 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2022-07-07 17:39:17 +0300 |
| commit | 6812f4ed6e77f422be5a17e5cebf14bd51411c5e (patch) | |
| tree | 12e55df91a25479e91712890bc3b8444fc665b89 | |
| parent | cbd4af081a216025dd5c8a8f6a653c47c8a02353 (diff) | |
| download | linux-6812f4ed6e77f422be5a17e5cebf14bd51411c5e.tar.xz | |
arm64: dts: mediatek: spherion: Add keyboard backlight
The Spherion board has keyboard backlight controlled by the PWM signal
generated by the ChromeOS EC.
Enable PWM output for ChromeOS EC and add a PWM controlled LED node for
the keyboard backlight.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20220629155956.1138955-13-nfraprado@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
| -rw-r--r-- | arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts b/arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts index 42db81e95fae..fa3d9573f37a 100644 --- a/arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts +++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts @@ -4,12 +4,28 @@ */ /dts-v1/; #include "mt8192-asurada.dtsi" +#include <dt-bindings/leds/common.h> / { model = "Google Spherion (rev0 - 3)"; compatible = "google,spherion-rev3", "google,spherion-rev2", "google,spherion-rev1", "google,spherion-rev0", "google,spherion", "mediatek,mt8192"; + + pwmleds { + compatible = "pwm-leds"; + + led { + function = LED_FUNCTION_KBD_BACKLIGHT; + color = <LED_COLOR_ID_WHITE>; + pwms = <&cros_ec_pwm 0>; + max-brightness = <1023>; + }; + }; +}; + +&cros_ec_pwm { + status = "okay"; }; &keyboard_controller { |