Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Bjorn Andersson <bjorn.andersson@linaro.org>
To:     Bjorn Andersson <bjorn.andersson@linaro.org>
Cc:     linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 4/4] arm64: dts: qcom: db820c: Add user LEDs
Date:   Wed,  4 May 2022 19:27:06 -0700
Message-Id: <20220505022706.1692554-5-bjorn.andersson@linaro.org>
In-Reply-To: <20220505022706.1692554-1-bjorn.andersson@linaro.org>
References: <20220505022706.1692554-1-bjorn.andersson@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

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>
---
 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 56e54ce4d10e..e9039e68a095 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>
@@ -683,6 +684,61 @@ pinconf {
 	};
 };
 
+&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>;
 
-- 
2.35.1