[PATCH v2 5/5] arm64: dts: exynos: Add button support for c1s

[Igor Belwon <igor.belwon@xxxxxxxxxxxxxxxxxxxxxxxxxx>]

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