From d1a405d2228f686a3fecf0f0374b61ae81d441aa Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Wed, 4 May 2022 19:27:06 -0700
Subject: [PATCH] arm64: dts: qcom: db820c: Add user LEDs

The db820c has 4 "user LEDs", all connected to the PMI8994. The first
three are connected to the three current sinks provided by the TRILED
and the fourth is connected to MPP2.

By utilizing the DTEST bus the MPP is fed the control signal from the
fourth LPG block, providing a consistent interface to the user.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Dylan Van Assche <me@dylanvanassche.be>
Link: https://lore.kernel.org/r/20220505022706.1692554-5-bjorn.andersson@linaro.org
---
 arch/arm64/boot/dts/qcom/apq8096-db820c.dts | 56 +++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dts b/arch/arm64/boot/dts/qcom/apq8096-db820c.dts
index eb620704edd0a..c1cb1ba5173cc 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dts
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dts
@@ -10,6 +10,7 @@
 #include "pmi8994.dtsi"
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 #include <dt-bindings/sound/qcom,q6afe.h>
 #include <dt-bindings/sound/qcom,q6asm.h>
@@ -682,6 +683,61 @@
 	};
 };
 
+&pmi8994_lpg {
+	qcom,power-source = <1>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pmi8994_mpp2_userled4>;
+
+	qcom,dtest = <0 0>,
+		     <0 0>,
+		     <0 0>,
+		     <4 1>;
+
+	status = "okay";
+
+	led@1 {
+		reg = <1>;
+		color = <LED_COLOR_ID_GREEN>;
+		function = LED_FUNCTION_HEARTBEAT;
+		function-enumerator = <1>;
+
+		linux,default-trigger = "heartbeat";
+		default-state = "on";
+	};
+
+	led@2 {
+		reg = <2>;
+		color = <LED_COLOR_ID_GREEN>;
+		function = LED_FUNCTION_HEARTBEAT;
+		function-enumerator = <0>;
+	};
+
+	led@3 {
+		reg = <3>;
+		color = <LED_COLOR_ID_GREEN>;
+		function = LED_FUNCTION_HEARTBEAT;
+		function-enumerator = <2>;
+	};
+
+	led@4 {
+		reg = <4>;
+		color = <LED_COLOR_ID_GREEN>;
+		function = LED_FUNCTION_HEARTBEAT;
+		function-enumerator = <3>;
+	};
+};
+
+&pmi8994_mpps {
+	pmi8994_mpp2_userled4: mpp2-userled4-state {
+		pins = "mpp2";
+		function = "sink";
+
+		output-low;
+		qcom,dtest = <4>;
+	};
+};
+
 &pmi8994_spmi_regulators {
 	vdd_s2-supply = <&vph_pwr>;
 
-- 
2.30.2