arm64: dts: qcom: sm6375-pdx225: Add volume down GPIO key

Add the required nodes to enable the volume down key on the Sony
Xperia 10 IV.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230303-topic-sm6375_features0_dts-v2-14-708b8191f7eb@linaro.org

diff --git a/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts b/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts
index b691c38..8220e6f 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts
+++ b/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts
@@ -46,6 +46,23 @@
                };
        };
 
+       gpio-keys {
+               compatible = "gpio-keys";
+               label = "gpio-keys";
+
+               pinctrl-0 = <&vol_down_n>;
+               pinctrl-names = "default";
+
+               key-volume-down {
+                       label = "Volume Down";
+                       linux,code = <KEY_VOLUMEDOWN>;
+                       gpios = <&pmr735a_gpios 1 GPIO_ACTIVE_LOW>;
+                       debounce-interval = <15>;
+                       linux,can-disable;
+                       wakeup-source;
+               };
+       };
+
        reserved-memory {
                cont_splash_mem: memory@85200000 {
                        reg = <0 0x85200000 0 0xc00000>;
@@ -133,6 +150,16 @@
        status = "okay";
 };
 
+&pmr735a_gpios {
+       vol_down_n: vol-down-n-state {
+               pins = "gpio1";
+               function = "normal";
+               power-source = <1>;
+               bias-pull-up;
+               input-enable;
+       };
+};
+
 &pon_pwrkey {
        status = "okay";
 };