arm64: dts: qcom: pmi8994: Add WLED node

Add and configure WLED node to enable backlight
control on WLED-enabled devices.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210228130831.203765-10-konrad.dybcio@somainline.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/pmi8994.dtsi

@@ -32,5 +32,18 @@ pmi8994_spmi_regulators: regulators {
 			#address-cells = <1>;
 			#size-cells = <1>;
 		};
+
+		pmi8994_wled: wled@d800 {
+			compatible = "qcom,pmi8994-wled";
+			reg = <0xd800 0xd900>;
+			interrupts = <3 0xd8 0x02 IRQ_TYPE_EDGE_RISING>;
+			interrupt-names = "short";
+			qcom,num-strings = <3>;
+			/* Yes, all four strings *have to* be defined or things won't work. */
+			qcom,enabled-strings = <0 1 2 3>;
+			qcom,cabc;
+			qcom,eternal-pfet;
+			status = "disabled";
+		};
 	};
 };