arm64: dts: qcom: Add WiFI/BT LEDs on db820c

The DragonBoard820c has two additional LEDs, for "WiFI" and "BT". Use
the first two LPG channels and wire them to the MPPs using DTEST lines.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi

@@ -83,6 +83,24 @@
 	};
 };
 
+&pm8994_mpps {
+	pm8994_mpp2_wifi_led: mpp2-wifi-led-active {
+		pins = "mpp2";
+		function = "sink";
+
+		output-low;
+		qcom,dtest = <1>;
+	};
+
+	pm8994_mpp4_bt_led: mpp4-wifi-led-active {
+		pins = "mpp4";
+		function = "sink";
+
+		output-low;
+		qcom,dtest = <2>;
+	};
+};
+
 &pmi8994_mpps {
 	pmi8994_mpp2_userled4: mpp2-userled4 {
 		pins = "mpp2";

arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi

@@ -625,6 +625,34 @@
 };
 
 &spmi_bus {
+	pmic@1 {
+		lpg {
+			status = "okay";
+
+			qcom,dtest = <1 2>,
+				     <2 2>,
+				     <0 0>,
+				     <0 0>,
+				     <0 0>,
+				     <0 0>;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&pm8994_mpp2_wifi_led>, <&pm8994_mpp4_bt_led>;
+
+			wifi-led {
+				led-sources = <1>;
+				linux,default-trigger = "phy0tx";
+				default-state = "off";
+			};
+
+			bt-led {
+				led-sources = <2>;
+				linux,default-trigger = "hci0-power";
+				default-state = "off";
+			};
+		};
+	};
+
 	pmic@3 {
 		lpg@b100 {
 			qcom,power-source = <1>;