arm64: dts: qcom: sm8250-edo: Rectify gpio-keys

[ Upstream commit a422c6a ]

Set up the corresponding GPIOs properly and add the leftover hardware
buttons to mark this piece of the puzzle complete.

Fixes: 46e1490 ("arm64: dts: qcom: sm8250-edo: Add hardware keys")
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230614-topic-edo_pinsgpiopmic-v2-4-6f90bba54c53@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arch/arm64/boot/dts/qcom/sm8250-sony-xperia-edo-pdx206.dts

@@ -20,6 +20,8 @@
 };
 
 &gpio_keys {
+	pinctrl-0 = <&focus_n &snapshot_n &vol_down_n &g_assist_n>;
+
 	g-assist-key {
 		label = "Google Assistant Key";
 		linux,code = <KEY_LEFTMETA>;
@@ -48,6 +50,14 @@
 			  "SP_ARI_PWR_ALARM",
 			  "NC",
 			  "NC"; /* GPIO_10 */
+
+	g_assist_n: g-assist-n-state {
+		pins = "gpio6";
+		function = "normal";
+		power-source = <1>;
+		bias-pull-up;
+		input-enable;
+	};
 };
 
 &pm8150b_gpios {

arch/arm64/boot/dts/qcom/sm8250-sony-xperia-edo.dtsi

@@ -51,12 +51,26 @@
 	gpio_keys: gpio-keys {
 		compatible = "gpio-keys";
 
-		/*
-		 * Camera focus (light press) and camera snapshot (full press)
-		 * seem not to work properly.. Adding the former one stalls the CPU
-		 * and the latter kills the volume down key for whatever reason. In any
-		 * case, they are both on &pm8150b_gpios: camera focus(2), camera snapshot(1).
-		 */
+		pinctrl-0 = <&focus_n &snapshot_n &vol_down_n>;
+		pinctrl-names = "default";
+
+		key-camera-focus {
+			label = "Camera Focus";
+			linux,code = <KEY_CAMERA_FOCUS>;
+			gpios = <&pm8150b_gpios 2 GPIO_ACTIVE_LOW>;
+			debounce-interval = <15>;
+			linux,can-disable;
+			gpio-key,wakeup;
+		};
+
+		key-camera-snapshot {
+			label = "Camera Snapshot";
+			linux,code = <KEY_CAMERA>;
+			gpios = <&pm8150b_gpios 1 GPIO_ACTIVE_LOW>;
+			debounce-interval = <15>;
+			linux,can-disable;
+			gpio-key,wakeup;
+		};
 
 		key-vol-down {
 			label = "Volume Down";
@@ -546,6 +560,34 @@
 	vdda-pll-supply = <&vreg_l9a_1p2>;
 };
 
+&pm8150_gpios {
+	vol_down_n: vol-down-n-state {
+		pins = "gpio1";
+		function = "normal";
+		power-source = <0>;
+		bias-pull-up;
+		input-enable;
+	};
+};
+
+&pm8150b_gpios {
+	snapshot_n: snapshot-n-state {
+		pins = "gpio1";
+		function = "normal";
+		power-source = <0>;
+		bias-pull-up;
+		input-enable;
+	};
+
+	focus_n: focus-n-state {
+		pins = "gpio2";
+		function = "normal";
+		power-source = <0>;
+		bias-pull-up;
+		input-enable;
+	};
+};
+
 &pon_pwrkey {
 	status = "okay";
 };