[PATCH v4 12/19] arm64: dts: mediatek: spherion: Add keyboard backlight
From: Nícolas F. R. A. Prado <hidden>
Date: 2022-06-29 16:01:04
Also in:
linux-devicetree, linux-mediatek, lkml
Subsystem:
arm/mediatek soc support, the rest · Maintainers:
Matthias Brugger, AngeloGioacchino Del Regno, Linus Torvalds
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 <redacted> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: Chen-Yu Tsai <wenst@chromium.org> --- (no changes since v1) .../dts/mediatek/mt8192-asurada-spherion-r0.dts | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
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 {
--
2.36.1
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