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Message-Id: <20250908-leds-v3-4-5944dc400668@vinarskis.com>
Date: Mon, 08 Sep 2025 01:18:06 +0200
From: Aleksandrs Vinarskis <alex@...arskis.com>
To: Hans de Goede <hansg@...nel.org>, Lee Jones <lee@...nel.org>,
Pavel Machek <pavel@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
Daniel Thompson <danielt@...nel.org>, Jingoo Han <jingoohan1@...il.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Jean-Jacques Hiblot <jjhiblot@...phandler.com>,
Jacopo Mondi <jacopo@...ndi.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Daniel Thompson <daniel.thompson@...aro.org>,
dri-devel@...ts.freedesktop.org, linux-media@...r.kernel.org,
linux-arm-msm@...r.kernel.org
Subject: [PATCH v3 4/4] arm64: dts: qcom: sc8280xp-x13s: enable camera
privacy indicator
Leverage newly introduced 'leds' and 'led-names' properties to pass
indicator's phandle and function to v4l2 subnode. The latter supports
privacy led since couple of years ago under 'privacy-led' designation.
Unlike initially proposed trigger-source based approach, this solution
cannot be easily bypassed from userspace, thus reducing privacy
concerns.
Signed-off-by: Aleksandrs Vinarskis <alex@...arskis.com>
---
arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
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 637430719e6d7d3c0eeb4abf2b80eea1f8289530..ef5c7cbeda68c7eb4745cd2ec01eaacf9a83040a 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
@@ -83,14 +83,11 @@ leds {
pinctrl-names = "default";
pinctrl-0 = <&cam_indicator_en>;
- led-camera-indicator {
- label = "white:camera-indicator";
+ privacy_led: privacy-led {
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;
};
};
@@ -685,6 +682,9 @@ camera@10 {
pinctrl-names = "default";
pinctrl-0 = <&cam_rgb_default>;
+ leds = <&privacy_led>;
+ led-names = "privacy-led";
+
clocks = <&camcc CAMCC_MCLK3_CLK>;
orientation = <0>; /* Front facing */
--
2.48.1
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