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| author | Oleg Keri <okerixx@gmail.com> | 2026-09-14 11:42:01 +0200 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-09-17 21:01:13 -0500 |
| commit | fc80b73afd911f6199bd066b843caf7d7ca20cd5 (patch) | |
| tree | af91c65691ce08d47ef0135ae678df7d7cedf1f8 | |
| parent | 3ca6796122d931ed3923884b019b0a32c26cade6 (diff) | |
| download | linux-next-fc80b73afd911f6199bd066b843caf7d7ca20cd5.tar.gz linux-next-fc80b73afd911f6199bd066b843caf7d7ca20cd5.zip | |
arm64: dts: qcom: glymur-lenovo-yoga-slim7x: add the camera privacy switch
The laptop has a camera privacy switch on the side of the top case - a
slider, not a mechanical cover over the lens, and it does nothing to the
camera itself. TLMM gpio99 follows its position: high with the switch
open, low with it engaged. Describe it as a gpio-keys switch so userspace
can act on it.
SW_CAMERA_LENS_COVER is the only switch code the input layer has for a
camera privacy state, and it is what the Lenovo WMI camera driver and
Dell's privacy driver report for the same kind of electronic switch on
x86 machines, so use it here as well despite the name.
The embedded controller also raises event 0x29 whenever the switch
moves, which makes it tempting to report it from the EC driver instead.
That would be the wrong layer: the pin is a plain level that tracks the
slider position and needs no EC transaction to read, and the EC event
carries nothing the pin does not already say.
Signed-off-by: Oleg Keri <okerixx@gmail.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260914094201.14009-1-okerixx@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts b/arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts index ecc8c34fb983..769f195c99d9 100644 --- a/arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts +++ b/arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts @@ -51,7 +51,7 @@ gpio-keys { compatible = "gpio-keys"; - pinctrl-0 = <&hall_int_n_default>; + pinctrl-0 = <&hall_int_n_default>, <&cam_privacy_default>; pinctrl-names = "default"; switch-lid { @@ -62,6 +62,13 @@ wakeup-source; wakeup-event-action = <EV_ACT_DEASSERTED>; }; + + switch-camera-privacy { + label = "Camera privacy switch"; + gpios = <&tlmm 99 GPIO_ACTIVE_LOW>; + linux,input-type = <EV_SW>; + linux,code = <SW_CAMERA_LENS_COVER>; + }; }; leds { @@ -1012,6 +1019,12 @@ bias-disable; }; + cam_privacy_default: cam-privacy-default-state { + pins = "gpio99"; + function = "gpio"; + bias-pull-up; + }; + cam_indicator_en: cam-indicator-en-state { pins = "gpio111"; function = "gpio"; |