linux-kernel - [PATCH AUTOSEL 6.4 25/31] arm64: dts: qcom: sc8280xp-x13s: Add camera activity LED

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Message-Id: <20230908193201.3462957-25-sashal@kernel.org>
Date:   Fri,  8 Sep 2023 15:31:54 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Sasha Levin <sashal@...nel.org>, agross@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: [PATCH AUTOSEL 6.4 25/31] arm64: dts: qcom: sc8280xp-x13s: Add camera activity LED

From: Konrad Dybcio <konrad.dybcio@...aro.org>

[ Upstream commit 1c63dd1c5fdafa8854526d7d60d2b741c813678d ]

Disappointigly, the camera activity LED is implemented in software.
Hook it up as a gpio-led and (until we have camera *and* a "camera on"
LED trigger) configure it as a panic indicator.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Link: https://lore.kernel.org/r/20230805-topic-x13s_cam_led-v1-1-443d752158c4@linaro.org
Signed-off-by: Bjorn Andersson <andersson@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 .../dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts   | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
index bdcba719fc385..90a21ab5c54fc 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
@@ -12,6 +12,7 @@
 #include <dt-bindings/iio/qcom,spmi-adc7-pmr735a.h>
 #include <dt-bindings/input/gpio-keys.h>
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 
 #include "sc8280xp.dtsi"
@@ -78,6 +79,21 @@ switch-lid {
 		};
 	};
 
+	leds {
+		compatible = "gpio-leds";
+
+		led-camera-indicator {
+			label = "white:camera-indicator";
+			function = LED_FUNCTION_INDICATOR;
+			color = <LED_COLOR_ID_WHITE>;
+			gpios = <&tlmm 28 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "none";
+			default-state = "off";
+			/* Reuse as a panic indicator until we get a "camera on" trigger */
+			panic-indicator;
+		};
+	};
+
 	pmic-glink {
 		compatible = "qcom,sc8280xp-pmic-glink", "qcom,pmic-glink";
 
-- 
2.40.1