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arm64: dts: mediatek: mt8395-nio-12l: Prepare MIPI DSI port

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This board can use a MIPI-DSI panel on the DSI0 connector: in
preparation for adding an overlay for the Radxa Display 8HD,
add the backlight, and some definitions for pins available
through the DSI0 port.

Signed-off-by: Julien Massot <julien.massot@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20250304-radxa-panel-overlay-v2-1-3ee6797d3f86@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
Julien Massot 2025-03-04 15:01:55 +01:00 committed by AngeloGioacchino Del Regno
parent 42fbcb45b7
commit d34c0f3003
No known key found for this signature in database
GPG Key ID: 9A3604CFAD978478
1 changed files with 45 additions and 0 deletions
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45
arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
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@ -48,6 +48,18 @@ memory@40000000 {
reg = <0 0x40000000 0x1 0x0>;
};
backlight: backlight {
compatible = "pwm-backlight";
brightness-levels = <0 1023>;
default-brightness-level = <576>;
enable-gpios = <&pio 107 GPIO_ACTIVE_HIGH>;
num-interpolated-steps = <1023>;
pinctrl-names = "default";
pinctrl-0 = <&dsi0_backlight_pins>;
pwms = <&disp_pwm0 0 500000>;
status = "disabled";
};
wifi_vreg: regulator-wifi-3v3-en {
compatible = "regulator-fixed";
regulator-name = "wifi_3v3_en";
@ -502,6 +514,13 @@ &mt6359_vsram_others_ldo_reg {
&pio {
mediatek,rsel-resistance-in-si-unit;
dsi0_backlight_pins: dsi0-backlight-pins {
pins-backlight-en {
pinmux = <PINMUX_GPIO107__FUNC_GPIO107>;
output-high;
};
};
eth_default_pins: eth-default-pins {
pins-cc {
pinmux = <PINMUX_GPIO85__FUNC_GBE_TXC>,
@ -699,6 +718,13 @@ pins-irq {
};
};
panel_default_pins: panel-pins {
pins-rst {
pinmux = <PINMUX_GPIO108__FUNC_GPIO108>;
bias-pull-up;
};
};
pcie0_default_pins: pcie0-default-pins {
pins-bus {
pinmux = <PINMUX_GPIO19__FUNC_WAKEN>,
@ -717,6 +743,12 @@ pins-bus {
};
};
pwm0_default_pins: pwm0-pins {
pins-disp-pwm {
pinmux = <PINMUX_GPIO97__FUNC_DISP_PWM0>;
};
};
spi1_pins: spi1-default-pins {
pins-bus {
pinmux = <PINMUX_GPIO136__FUNC_SPIM1_CSB>,
@ -737,6 +769,19 @@ pins-bus {
};
};
touch_pins: touch-pins {
pins-touch-int {
pinmux = <PINMUX_GPIO132__FUNC_GPIO132>;
input-enable;
bias-disable;
};
pins-touch-rst {
pinmux = <PINMUX_GPIO133__FUNC_GPIO133>;
output-high;
};
};
uart0_pins: uart0-pins {
pins-bus {
pinmux = <PINMUX_GPIO98__FUNC_UTXD0>,