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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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1444eb8fed
The HAIKOU-LVDS-9904379 adapter is an adapter for PX30 Ringneck with the Haikou carrierboard. It is to be inserted in the fake PCIe slot labelled Video Connector. This adapter expects an Admatec 9904379 1024x600 LVDS display with backlight and touchscreen. An EEPROM is also found on the adapter. This adds support for this adapter on PX30 Ringneck when inserted in Haikou carrierboard. Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de> Link: https://lore.kernel.org/r/20250221-ringneck-dtbos-v2-3-310c0b9a3909@cherry.de Signed-off-by: Heiko Stuebner <heiko@sntech.de>
131 lines
2.4 KiB
Plaintext
131 lines
2.4 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (c) 2025 Cherry Embedded Solutions GmbH
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*
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* HAIKOU-LVDS-9904379 adapter for PX30 Ringneck and Haikou carrierboard.
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*
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* This adapter needs to be plugged in the fake PCIe connector called Video
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* Connector on Haikou carrierboard.
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*/
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/dts-v1/;
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/plugin/;
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/pinctrl/rockchip.h>
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&{/} {
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backlight_lvds: backlight-lvds {
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compatible = "pwm-backlight";
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brightness-levels = <0 255>;
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default-brightness-level = <255>;
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num-interpolated-steps = <255>;
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power-supply = <&vcc3v3_baseboard>;
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pwms = <&pwm0 0 25000 0>;
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};
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panel {
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compatible = "admatec,9904379", "panel-lvds";
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backlight = <&backlight_lvds>;
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data-mapping = "vesa-24";
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height-mm = <126>;
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power-supply = <&vcc3v3_baseboard>;
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width-mm = <224>;
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panel-timing {
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clock-frequency = <49500000>;
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hactive = <1024>;
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hback-porch = <90>;
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hfront-porch = <90>;
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hsync-len = <90>;
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vactive = <600>;
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vback-porch = <10>;
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vfront-porch = <10>;
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vsync-len = <10>;
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};
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port {
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panel_in_lvds: endpoint {
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remote-endpoint = <&lvds_out_panel>;
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};
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};
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};
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};
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&display_subsystem {
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status = "okay";
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};
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&dsi_dphy {
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status = "okay";
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};
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&i2c1 {
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#address-cells = <1>;
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#size-cells = <0>;
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/* EEPROM and GT928 are limited to 400KHz */
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clock-frequency = <400000>;
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touchscreen@14 {
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compatible = "goodix,gt928";
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reg = <0x14>;
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interrupt-parent = <&gpio0>;
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interrupts = <RK_PA0 IRQ_TYPE_LEVEL_LOW>;
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irq-gpios = <&gpio0 RK_PA0 GPIO_ACTIVE_HIGH>;
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reset-gpios = <&gpio0 RK_PA2 GPIO_ACTIVE_HIGH>;
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pinctrl-0 = <&touch_int &touch_rst>;
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pinctrl-names = "default";
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touchscreen-inverted-x;
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touchscreen-inverted-y;
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AVDD28-supply = <&vcc3v3_baseboard>;
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VDDIO-supply = <&vcc3v3_baseboard>;
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};
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eeprom@54 {
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reg = <0x54>;
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compatible = "st,24c04", "atmel,24c04";
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pagesize = <16>;
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size = <512>;
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vcc-supply = <&vcc3v3_baseboard>;
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};
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};
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&lvds {
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status = "okay";
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};
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&lvds_out {
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lvds_out_panel: endpoint {
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remote-endpoint = <&panel_in_lvds>;
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};
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};
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&pinctrl {
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touch {
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touch_int: touch-int {
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rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
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};
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touch_rst: touch-rst {
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rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
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};
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};
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};
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&vopb {
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status = "okay";
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};
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&vopb_mmu {
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status = "okay";
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};
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&vopl {
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status = "okay";
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};
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&vopl_mmu {
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status = "okay";
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};
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