This patch adds support for the P230 and Q200 ADC laddered button and GPIO button.
Signed-off-by: Neil Armstrong <[email protected]> --- .../boot/dts/amlogic/meson-gxl-s905d-p230.dts | 40 ++++++++++++++++++++++ arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts | 40 ++++++++++++++++++++++ 2 files changed, 80 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts index f66939c..a97d17d 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts @@ -43,12 +43,47 @@ /dts-v1/; +#include <dt-bindings/input/input.h> + #include "meson-gxl-s905d.dtsi" #include "meson-gx-p23x-q20x.dtsi" / { compatible = "amlogic,p230", "amlogic,s905d", "amlogic,meson-gxl"; model = "Amlogic Meson GXL (S905D) P230 Development Board"; + + adc-keys { + compatible = "adc-keys"; + io-channels = <&saradc 0>; + io-channel-names = "buttons"; + keyup-threshold-microvolt = <1710000>; + + button-function { + label = "Update"; + linux,code = <KEY_VENDOR>; + press-threshold-microvolt = <10000>; + }; + }; + + gpio-keys-polled { + compatible = "gpio-keys-polled"; + #address-cells = <1>; + #size-cells = <0>; + poll-interval = <100>; + + button@0 { + label = "power"; + linux,code = <KEY_POWER>; + gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>; + }; + }; + + vddio_ao18: regulator-vddio_ao18 { + compatible = "regulator-fixed"; + regulator-name = "VDDIO_AO18"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; }; /* P230 has exclusive choice between internal or external PHY */ @@ -75,3 +110,8 @@ max-speed = <1000>; }; }; + +&saradc { + status = "okay"; + vref-supply = <&vddio_ao18>; +}; diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts index 5dbc660..a2f2908 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts @@ -43,12 +43,47 @@ /dts-v1/; +#include <dt-bindings/input/input.h> + #include "meson-gxm.dtsi" #include "meson-gx-p23x-q20x.dtsi" / { compatible = "amlogic,q200", "amlogic,s912", "amlogic,meson-gxm"; model = "Amlogic Meson GXM (S912) Q200 Development Board"; + + adc-keys { + compatible = "adc-keys"; + io-channels = <&saradc 0>; + io-channel-names = "buttons"; + keyup-threshold-microvolt = <1710000>; + + button-function { + label = "Update"; + linux,code = <KEY_VENDOR>; + press-threshold-microvolt = <10000>; + }; + }; + + gpio-keys-polled { + compatible = "gpio-keys-polled"; + #address-cells = <1>; + #size-cells = <0>; + poll-interval = <100>; + + button@0 { + label = "power"; + linux,code = <KEY_POWER>; + gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>; + }; + }; + + vddio_ao18: regulator-vddio_ao18 { + compatible = "regulator-fixed"; + regulator-name = "VDDIO_AO18"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; }; /* Q200 has exclusive choice between internal or external PHY */ @@ -75,3 +110,8 @@ max-speed = <1000>; }; }; + +&saradc { + status = "okay"; + vref-supply = <&vddio_ao18>; +}; -- 1.9.1
