[PATCH 1/2] arm64: dts: mediatek: mt8395-nio-12l: Prepare MIPI DSI port
Julien Massot
julien.massot at collabora.com
Wed Feb 26 06:35:27 PST 2025
This board can use a MIPI-DSI panel on the DSI0 connector: in
preparation for adding an overlay for the Radxa Display 8HD,
add a pipeline connecting VDOSYS0 components to DSI0.
Also add the backlight, and some pin definitions available
through the DSI0 port.
Signed-off-by: Julien Massot <julien.massot at collabora.com>
---
.../boot/dts/mediatek/mt8395-radxa-nio-12l.dts | 60 ++++++++++++++++++++++
1 file changed, 60 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts b/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
index 7184dc99296c7f5d749c7e6d378722677970b3b7..65c77e43d1cd4913b6741e25130febd746ff753c 100644
--- a/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
@@ -48,6 +48,17 @@ memory at 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>;
+ };
+
wifi_vreg: regulator-wifi-3v3-en {
compatible = "regulator-fixed";
regulator-name = "wifi_3v3_en";
@@ -499,9 +510,20 @@ &mt6359_vsram_others_ldo_reg {
regulator-max-microvolt = <750000>;
};
+&ovl0_in {
+ remote-endpoint = <&vdosys0_ep_main>;
+};
+
&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 +721,13 @@ 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 +746,12 @@ 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 +772,19 @@ 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>,
@@ -912,6 +960,18 @@ &ssusb2 {
status = "okay";
};
+&vdosys0 {
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ vdosys0_ep_main: endpoint at 0 {
+ reg = <0>;
+ remote-endpoint = <&ovl0_in>;
+ };
+ };
+};
+
&xhci0 {
vbus-supply = <&otg_vbus_regulator>;
status = "okay";
--
2.48.1
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