[PATCH 5/5] ARM: dts: rockchip: enable adc key for rk3288-evb
From: jacob-chen@iotwrt.com (Jacob Chen)
Date: 2017-07-01 02:02:47
Also in:
linux-devicetree, linux-rockchip
Subsystem:
the rest · Maintainer:
Linus Torvalds
rk3288-evb have many tablet-used adc buttons. Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com> --- arch/arm/boot/dts/rk3288-evb.dtsi | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+)
diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index 9cee856..835ddb8 100644
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi@@ -48,6 +48,43 @@ reg = <0x0 0x80000000>; }; + adc-keys { + compatible = "adc-keys"; + io-channels = <&saradc 1>; + io-channel-names = "buttons"; + keyup-threshold-microvolt = <1800000>; + + button-up { + label = "Volume Up"; + linux,code = <KEY_VOLUMEUP>; + press-threshold-microvolt = <100000>; + }; + + button-down { + label = "Volume Down"; + linux,code = <KEY_VOLUMEDOWN>; + press-threshold-microvolt = <300000>; + }; + + menu { + label = "Menu"; + linux,code = <KEY_MENU>; + press-threshold-microvolt = <640000>; + }; + + esc { + label = "Esc"; + linux,code = <KEY_ESC>; + press-threshold-microvolt = <1000000>; + }; + + home { + label = "Home"; + linux,code = <KEY_HOME>; + press-threshold-microvolt = <1300000>; + }; + }; + backlight: backlight { compatible = "pwm-backlight"; brightness-levels = <
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2.7.4