Add the 6 adc buttons of the amlogic S400
Signed-off-by: Jerome Brunet <jbru...@baylibre.com>
---
arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 44 ++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
index f389f84be2e2..fd90fa4a282c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
@@ -6,11 +6,55 @@
/dts-v1/;
#include "meson-axg.dtsi"
+#include <dt-bindings/input/input.h>
/ {
compatible = "amlogic,s400", "amlogic,a113d", "amlogic,meson-axg";
model = "Amlogic Meson AXG S400 Development Board";
+ adc_keys {
+ compatible = "adc-keys";
+ io-channels = <&saradc 0>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <1800000>;
+
+ button-next {
+ label = "Next";
+ linux,code = <KEY_NEXT>;
+ press-threshold-microvolt = <1116000>; /* 62% */
+ };
+
+ button-prev {
+ label = "Previous";
+ linux,code = <KEY_PREVIOUS>;
+ press-threshold-microvolt = <900000>; /* 50% */
+ };
+
+ button-wifi {
+ label = "Wifi";
+ linux,code = <KEY_WLAN>;
+ press-threshold-microvolt = <684000>; /* 38% */
+ };
+
+ button-up {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ press-threshold-microvolt = <468000>; /* 26% */
+ };
+
+ button-down {
+ label = "Volume Down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ press-threshold-microvolt = <252000>; /* 14% */
+ };
+
+ button-voice {
+ label = "Voice";
+ linux,code = <KEY_VOICECOMMAND>;
+ press-threshold-microvolt = <0>; /* 0% */
+ };
+ };
+
aliases {
serial0 = &uart_AO;
serial1 = &uart_A;
--
2.14.4
