arm64: dts: qcom: msm8994-octagon: Configure PON keys

Both the power key and the vol- key are connected over PON.
Configure them.

Signed-off-by: Gustave Monce <gustave.monce@outlook.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210131013853.55810-14-konrad.dybcio@somainline.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi

@@ -358,6 +358,22 @@
 	};
 };
 
+&pm8994_pon {
+	pwrkey {
+		compatible = "qcom,pm8941-pwrkey";
+		interrupts = <0 8 0 IRQ_TYPE_EDGE_BOTH>;
+		debounce = <15625>;
+		linux,code = <KEY_POWER>;
+	};
+
+	volwnkey {
+		compatible = "qcom,pm8941-resin";
+		interrupts = <0 8 1 IRQ_TYPE_EDGE_BOTH>;
+		debounce = <15625>;
+		linux,code = <KEY_VOLUMEDOWN>;
+	};
+};
+
 &pmi8994_gpios {
 	pinctrl-0 = <&hd3ss460_pol &hd3ss460_amsel &hd3ss460_en>;
 	pinctrl-names = "default";

arch/arm64/boot/dts/qcom/pm8994.dtsi

@@ -43,7 +43,7 @@
 			interrupts = <0x0 0x61 0x1 IRQ_TYPE_EDGE_RISING>;
 		};
 
-		pon@800 {
+		pm8994_pon: pon@800 {
 			compatible = "qcom,pm8916-pon";
 
 			reg = <0x800>;