Add button (gpio-keys) support for c1s (SM-N981B).
Added are all hardware buttons (vol-, vol+ and power).
Signed-off-by: Igor Belwon <igor.belwon@xxxxxxxxxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/exynos/exynos990-c1s.dts | 49 ++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/arch/arm64/boot/dts/exynos/exynos990-c1s.dts b/arch/arm64/boot/dts/exynos/exynos990-c1s.dts
index e57339357dc6..36a6f1377e92 100644
--- a/arch/arm64/boot/dts/exynos/exynos990-c1s.dts
+++ b/arch/arm64/boot/dts/exynos/exynos990-c1s.dts
@@ -59,8 +59,57 @@ abox_reserved: audio@f7fb0000 {
no-map;
};
};
+
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ pinctrl-0 = <&key_power &key_voldown &key_volup>;
+ pinctrl-names = "default";
+
+ power-key {
+ label = "Power";
+ linux,code = <KEY_POWER>;
+ gpios = <&gpa2 4 GPIO_ACTIVE_LOW>;
+ wakeup-source;
+ };
+
+ voldown-key {
+ label = "Volume Down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ gpios = <&gpa0 4 GPIO_ACTIVE_LOW>;
+ };
+
+ volup-key {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ gpios = <&gpa0 3 GPIO_ACTIVE_LOW>;
+ };
+ };
};
&oscclk {
clock-frequency = <26000000>;
};
+
+&pinctrl_alive {
+ key_power: key-power-pins {
+ samsung,pins = "gpa2-4";
+ samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
+ samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+ };
+
+ key_voldown: key-voldown-pins {
+ samsung,pins = "gpa0-4";
+ samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
+ samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+ };
+
+ key_volup: key-volup-pins {
+ samsung,pins = "gpa0-3";
+ samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
+ samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+ };
+};
--
2.45.2
