The Volume Down & Power buttons are controlled by the PMIC via
the PON hardware, and the Volume Up is connected to a PMIC gpio.
Enable the necessary hardware and setup the GPIO state for the
Volume Up gpio key.
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm8550-qrd.dts | 36 +++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sm8550-qrd.dts b/arch/arm64/boot/dts/qcom/sm8550-qrd.dts
index b08a8201ad23..c354dcc12621 100644
--- a/arch/arm64/boot/dts/qcom/sm8550-qrd.dts
+++ b/arch/arm64/boot/dts/qcom/sm8550-qrd.dts
@@ -28,6 +28,22 @@ chosen {
stdout-path = "serial0:115200n8";
};
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&volume_up_n>;
+
+ key-volume-up {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ gpios = <&pm8550_gpios 6 GPIO_ACTIVE_LOW>;
+ debounce-interval = <15>;
+ linux,can-disable;
+ wakeup-source;
+ };
+ };
+
pmic-glink {
compatible = "qcom,sm8550-pmic-glink", "qcom,pmic-glink";
#address-cells = <1>;
@@ -426,6 +442,16 @@ &pcie0_phy {
status = "okay";
};
+&pon_pwrkey {
+ status = "okay";
+};
+
+&pon_resin {
+ linux,code = <KEY_VOLUMEDOWN>;
+
+ status = "okay";
+};
+
&pm8550_flash {
status = "okay";
@@ -450,6 +476,16 @@ led-1 {
};
};
+&pm8550_gpios {
+ volume_up_n: volume-up-n-state {
+ pins = "gpio6";
+ function = "normal";
+ power-source = <1>;
+ bias-pull-up;
+ input-enable;
+ };
+};
+
&pm8550_pwm {
status = "okay";
--
2.34.1
