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| author | Ondrej Jirman <megi@xff.cz> | 2023-04-05 13:38:13 +0100 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2023-04-18 00:40:49 +0200 |
| commit | d3150ed535805403291b95fd84b00b0b5ef41096 (patch) | |
| tree | 4b6d8a67ccbaa0194ead055bb9d09c869298f92c /arch/arm64/boot | |
| parent | 1bb69cd4a344299a382695a2de1a84c0b23fe6da (diff) | |
| download | lwn-d3150ed535805403291b95fd84b00b0b5ef41096.tar.gz lwn-d3150ed535805403291b95fd84b00b0b5ef41096.zip | |
arm64: dts: rockchip: Add support for volume keys to rk3399-pinephone-pro
These are implemented via regular ADC, so regular polling is needed,
for these keys to work.
Co-developed-by: Martijn Braam <martijn@brixit.nl>
Signed-off-by: Martijn Braam <martijn@brixit.nl>
Co-developed-by: Kamil Trzciński <ayufan@ayufan.eu>
Signed-off-by: Kamil Trzciński <ayufan@ayufan.eu>
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Tested-by: Ondrej Jirman <megi@xff.cz>
Link: https://lore.kernel.org/r/20230405123813.2272919-1-pbrobinson@gmail.com
[increased Volume-Down voltage to 600mV as suggested by Ondrej]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts index 475ba78acc09..61f3fec5a8b1 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts @@ -10,6 +10,7 @@ */ /dts-v1/; +#include <dt-bindings/input/gpio-keys.h> #include <dt-bindings/input/linux-event-codes.h> #include "rk3399.dtsi" #include "rk3399-opp.dtsi" @@ -29,6 +30,26 @@ stdout-path = "serial2:115200n8"; }; + adc-keys { + compatible = "adc-keys"; + io-channels = <&saradc 1>; + io-channel-names = "buttons"; + keyup-threshold-microvolt = <1600000>; + poll-interval = <100>; + + 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 = <600000>; + }; + }; + backlight: backlight { compatible = "pwm-backlight"; pwms = <&pwm0 0 50000 0>; @@ -519,6 +540,11 @@ status = "okay"; }; +&saradc { + vref-supply = <&vcca1v8_s3>; + status = "okay"; +}; + &sdmmc { bus-width = <4>; cap-sd-highspeed; |