[PATCH 7/8] arm64: dts: allwinner: rg35xx: Enable LCD output
Jernej Škrabec
jernej.skrabec at gmail.com
Sat Feb 22 01:46:19 PST 2025
Dne nedelja, 16. februar 2025 ob 10:27:14 Srednjeevropski standardni čas je Ryan Walklin napisal(a):
> The RG35XX has a 640x480 RGB/SPI LCD panel, supported by the SoC display
> pipeline and an NV3052C controller. The H616 SOC's GPIO bank D contains
> the muxed display pins for RGB and LVDS output support.
>
> Enable the display engine and LCD timing controller, configure the
> panel, and add a fixed 3.3v GPIO-controlled regulator for the panel, and
> a VCC supply for the display pins as per the other GPIO banks.
>
> Signed-off-by: Ryan Walklin <ryan at testtoast.com>
> ---
> .../sun50i-h700-anbernic-rg35xx-2024.dts | 58 +++++++++++++++++++
> 1 file changed, 58 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
> index a231abf1684ad..388487d4720e2 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
> @@ -175,6 +175,49 @@ reg_vcc5v: regulator-vcc5v { /* USB-C power input */
> regulator-min-microvolt = <5000000>;
> regulator-max-microvolt = <5000000>;
> };
> +
> + reg_lcd: regulator-gpio-lcd-vdd {
> + compatible = "regulator-fixed";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vdd-lcd";
> + gpio = <&pio 8 15 GPIO_ACTIVE_HIGH>; // PI15
> + enable-active-high;
> + };
> +
> + spi_lcd: spi {
> + compatible = "spi-gpio";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + sck-gpios = <&pio 8 9 GPIO_ACTIVE_HIGH>; // PI9
> + mosi-gpios = <&pio 8 10 GPIO_ACTIVE_HIGH>; // PI10
> + cs-gpios = <&pio 8 8 GPIO_ACTIVE_HIGH>; // PI8
> + num-chipselects = <1>;
> +
> + panel: panel at 0 {
> + compatible = "anbernic,rg35xx-plus-panel";
> +
> + reg = <0>;
> +
> + spi-max-frequency = <3125000>;
> + spi-3wire;
> +
> + reset-gpios = <&pio 8 14 GPIO_ACTIVE_LOW>; // PI14
> +
> + backlight = <&backlight>;
There is no backlight node at this point. Reverse patches 7 and 8 or better yet,
merge them and put patch 8 message into comment to backlight node.
Best regards,
Jernej
> + power-supply = <®_lcd>;
> +
> + pinctrl-0 = <&lcd0_rgb888_pins>;
> + pinctrl-names = "default";
> +
> + port {
> + panel_in_rgb: endpoint {
> + remote-endpoint = <&tcon_lcd0_out_lcd>;
> + };
> + };
> + };
> + };
> };
>
> &codec {
> @@ -187,6 +230,10 @@ &cpu0 {
> cpu-supply = <®_dcdc1>;
> };
>
> +&de {
> + status = "okay";
> +};
> +
> &ehci0 {
> status = "okay";
> };
> @@ -206,6 +253,7 @@ &ohci0 {
> &pio {
> vcc-pa-supply = <®_cldo3>;
> vcc-pc-supply = <®_cldo3>;
> + vcc-pd-supply = <®_cldo3>;
> vcc-pe-supply = <®_cldo3>;
> vcc-pf-supply = <®_cldo3>;
> vcc-pg-supply = <®_aldo4>;
> @@ -355,3 +403,13 @@ &usbotg {
> &usbphy {
> status = "okay";
> };
> +
> +&tcon_lcd0 {
> + status = "okay";
> +};
> +
> +&tcon_lcd0_out {
> + tcon_lcd0_out_lcd: endpoint at 1 {
> + remote-endpoint = <&panel_in_rgb>;
> + };
> +};
>
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