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arm64: dts: mediatek: asurada: Add display backlight

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Add the display backlight for the Asurada platform. It relies on the
display PWM controller, so also enable and configure this component.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20221102190611.283546-3-nfraprado@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Nícolas F. R. A. Prado
2022-11-02 15:06:08 -04:00
committed by Matthias Brugger
parent f9f00b1f6b
commit ea65d256e1
1 changed files with 28 additions and 0 deletions
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28
arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
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@@ -23,6 +23,16 @@
reg = <0 0x40000000 0 0x80000000>;
};
backlight_lcd0: backlight-lcd0 {
compatible = "pwm-backlight";
pwms = <&pwm0 0 500000>;
power-supply = <&ppvar_sys>;
enable-gpios = <&pio 152 0>;
brightness-levels = <0 1023>;
num-interpolated-steps = <1023>;
default-brightness-level = <576>;
};
pp1000_dpbrdg: regulator-1v0-dpbrdg {
compatible = "regulator-fixed";
regulator-name = "pp1000_dpbrdg";
@@ -838,6 +848,17 @@
};
};
pwm0_pins: pwm0-default-pins {
pins-pwm {
pinmux = <PINMUX_GPIO40__FUNC_DISP_PWM>;
};
pins-inhibit {
pinmux = <PINMUX_GPIO152__FUNC_GPIO152>;
output-high;
};
};
scp_pins: scp-pins {
pins-vreq-vao {
pinmux = <PINMUX_GPIO195__FUNC_SCP_VREQ_VAO>;
@@ -899,6 +920,13 @@
interrupts-extended = <&pio 214 IRQ_TYPE_LEVEL_HIGH>;
};
&pwm0 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&pwm0_pins>;
};
&scp {
status = "okay";