linux-kernel - [PATCH 4/7] arm64: dts: qcom: sm8450-nagara: Add GPIO keys

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Date:   Tue, 13 Dec 2022 20:10:33 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     linux-arm-msm@...r.kernel.org, andersson@...nel.org,
        agross@...nel.org, krzysztof.kozlowski@...aro.org
Cc:     marijn.suijten@...ainline.org, Vinod Koul <vkoul@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/7] arm64: dts: qcom: sm8450-nagara: Add GPIO keys

With PMIC GPIOs now available, set up required pin settings and add
gpio-keys.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 .../dts/qcom/sm8450-sony-xperia-nagara.dtsi   | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara.dtsi b/arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara.dtsi
index 8e128efcb128..3d96b6757aa3 100644
--- a/arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara.dtsi
@@ -27,6 +27,41 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		label = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&focus_n &snapshot_n &vol_down_n>;
+
+		key-camera-focus {
+			label = "Camera Focus";
+			linux,code = <KEY_CAMERA_FOCUS>;
+			gpios = <&pm8350b_gpios 8 GPIO_ACTIVE_LOW>;
+			debounce-interval = <15>;
+			linux,can-disable;
+			gpio-key,wakeup;
+		};
+
+		key-camera-snapshot {
+			label = "Camera Snapshot";
+			linux,code = <KEY_CAMERA>;
+			gpios = <&pm8350b_gpios 5 GPIO_ACTIVE_LOW>;
+			debounce-interval = <15>;
+			linux,can-disable;
+			gpio-key,wakeup;
+		};
+
+		key-volume-down {
+			label = "Volume Down";
+			linux,code = <KEY_VOLUMEDOWN>;
+			gpios = <&pm8350_gpios 6 GPIO_ACTIVE_LOW>;
+			debounce-interval = <15>;
+			linux,can-disable;
+			gpio-key,wakeup;
+		};
+	};
+
 	reserved-memory {
 		adsp_mem: memory@...00000 {
 			reg = <0x0 0x85700000 0x0 0x2800000>;
@@ -562,6 +597,32 @@ &pm8350_gpios {
 			  "NC",
 			  "NC",
 			  "PM8350_OPTION"; /* GPIO_10 */
+
+	vol_down_n: vol-down-n-state {
+		pins = "gpio6";
+		function = "normal";
+		power-source = <1>;
+		bias-pull-up;
+		input-enable;
+	};
+};
+
+&pm8350b_gpios {
+	snapshot_n: snapshot-n-state {
+		pins = "gpio5";
+		function = "normal";
+		power-source = <0>;
+		bias-pull-up;
+		input-enable;
+	};
+
+	focus_n: focus-n-state {
+		pins = "gpio8";
+		function = "normal";
+		power-source = <0>;
+		bias-pull-up;
+		input-enable;
+	};
 };
 
 &pm8450_gpios {
-- 
2.39.0