diff options
| author | Jacob Chen <jacob-chen@iotwrt.com> | 2017-07-01 10:02:47 +0800 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2017-07-16 17:08:58 +0200 |
| commit | ef93f7518f0517ee8b9aaf915eeecff3c9cbddad (patch) | |
| tree | 3b11b0f5ab08108cc10b828b86d8e180f1af063d | |
| parent | 849f05538199e9b86c31e69ffb3a7353d04c6e44 (diff) | |
ARM: dts: rockchip: enable adc key for rk3288-evb
rk3288-evb have many tablet-used adc buttons.
Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| -rw-r--r-- | arch/arm/boot/dts/rk3288-evb.dtsi | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi index f549f91e177a..e44ad8052424 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 = < |