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arm64: dts: qcom: sc8280xp-x13s: enable camera privacy indicator

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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@vinarskis.com>
Tested-by: Steev Klimaszewski <threeway@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250910-leds-v5-4-bb90a0f897d5@vinarskis.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Aleksandrs Vinarskis
2025-09-10 14:01:11 +02:00
committed by Bjorn Andersson
parent d5e86096fe
commit b54c412b51
1 changed files with 4 additions and 4 deletions
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8
arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
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@@ -83,14 +83,11 @@
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 @@
pinctrl-names = "default";
pinctrl-0 = <&cam_rgb_default>;
leds = <&privacy_led>;
led-names = "privacy";
clocks = <&camcc CAMCC_MCLK3_CLK>;
orientation = <0>; /* Front facing */