summaryrefslogtreecommitdiff
path: root/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts
diff options
context:
space:
mode:
authorNeil Armstrong <narmstrong@baylibre.com>2017-03-07 13:40:22 +0300
committerKevin Hilman <khilman@baylibre.com>2017-03-23 06:46:51 +0300
commit82838e6f523aa02332318f09599474ed2ac4d134 (patch)
tree93946f244874160cfc5fc5380953a5b6dc82ba1a /arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts
parent9ded9b0fa8dc3d039ded0f5a0bdc3f82eb4b9259 (diff)
downloadlinux-82838e6f523aa02332318f09599474ed2ac4d134.tar.xz
ARM64: dts: meson-gx: Add Buttons to Q200 and P230 boards
This patch adds support for the P230 and Q200 ADC laddered button and GPIO button. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts')
-rw-r--r--arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts40
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts
index e6ac39b712b7..b65776b01911 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 */
@@ -77,3 +112,8 @@
max-speed = <1000>;
};
};
+
+&saradc {
+ status = "okay";
+ vref-supply = <&vddio_ao18>;
+};