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arm64: dts: qcom: c630: Add backlight controller 

The Lenovo Yoga C630 uses the PWM controller in the TI SN65DSI86 bridge
chip to provide a signal for the backlight control and has TLMM GPIO 11
attached to some regulator that drives the backlight.

Unfortunately the regulator attached to this gpio is also powering the
camera, so turning off backlight result in the detachment of the camera
as well.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Steev Klimaszewski <steev@kali.org>
Link: https://lore.kernel.org/r/20220208041606.144039-1-bjorn.andersson@linaro.org
This commit is contained in:
Bjorn Andersson 2022-02-07 22:16:05 -06:00
parent 116f7cc43d
commit a28106a273
1 changed files with 8 additions and 0 deletions
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8
arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
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@ -59,6 +59,7 @@
panel {
compatible = "boe,nv133fhm-n61";
no-hpd;
backlight = <&backlight>;
ports {
port {
@ -98,6 +99,12 @@
clock-frequency = <19200000>;
};
backlight: backlight {
compatible = "pwm-backlight";
pwms = <&sn65dsi86 1000000>;
enable-gpios = <&tlmm 11 GPIO_ACTIVE_HIGH>;
};
};
&adsp_pas {
@ -419,6 +426,7 @@
clock-names = "refclk";
no-hpd;
#pwm-cells = <1>;
ports {
#address-cells = <1>;