20251213给飞凌OK3588-C开发板适配Rockchip原厂的Buildroot【linux-6.1】系统时适配CTP触摸屏FT5X06

cat /sys/kernel/debug/pinctrl/pinctrl-rockchip-pinctrl/pinmux-pins

cat /sys/kernel/debug/gpio

2025/12/13 14:21

缘起：飞凌OK3588-C开发板跑Rockchip原厂的Buildroot【linux-6.1】系统时，适配ETH1接口的网卡。

当你把荣品RD-RK3588开发板重新适配一把，就相当于从头做了一个项目：【荣品RD-RK3588开发板】。

当然，开发板的硬件功能都是好的，你免除了调试调试的过程，也就没有解决相关硬件出错的经验/机会了！

1、迁移飞凌OK3588-C开发板的飞凌Android14的DTS中CTP触摸屏部分到 Rockchip原厂的Buildroot【linux-6.1】系统。

Z:\14TB\OK3588-C\OK3588-android14-source\kernel-6.1\arch\arm64\boot\dts\rockchip\OK3588-C-Common.dtsi

Y:\new_disk_4t\wyb\RD-RK3588\rk3588_linux6.1_release_v1.2.0_20241220\kernel-6.1\arch\arm64\boot\dts\rockchip\rk3588-evb7-v11.dtsi

很容易知道CTP的IRQ引脚是GPIO3C0 == GPIO112，【被注释了】RESET引脚是GPIO3B7 == GPIO111

&i2c2 {

status = "okay";

extio: tca6424@23 {

compatible = "ti,tca6424";

reg = <0x23>;

interrupt-parent = <&gpio1>;

interrupts = <RK_PA4 IRQ_TYPE_EDGE_FALLING>;

gpio-controller;

#gpio-cells = <2>;

interrupt-controller;

#interrupt-cells = <2>;

pinctrl-0 = <&extio_int_gpio>;

pinctrl-names = "default";

status = "okay";

};

ft5x06_dsi0: ft5x06@38 { //dsi0 ctp
compatible = "edt,edt-ft5406", "edt,edt-ft5x06";
reg = <0x38>;
pinctrl-names = "ft5x06_default";
pinctrl-0 = <&ft5x06_dsi0_gpio>;
interrupt-parent = <&gpio3>;
interrupts = <RK_PC0 IRQ_TYPE_EDGE_FALLING>;
// irq-gpio = <&gpio3 RK_PC0 GPIO_ACTIVE_HIGH>;
// reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_HIGH>;
touchscreen-size-x = <1024>;
touchscreen-size-y = <600>;
input-phy = "ft5x06_2_38/input0";
status = "okay";
};

&pinctrl {

extio {

extio_int_gpio: extio-int-gpio {

rockchip,pins = <1 RK_PA4 RK_FUNC_GPIO &pcfg_pull_up>;

};

cam {

mipicsi0_pwr: mipicsi0-pwr {

rockchip,pins =

/* camera power en */

<1 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;

};

mipicsi1_pwr: mipicsi1-pwr {

rockchip,pins =

/* camera power en */

<1 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;

};

mipidcphy0_pwr: mipidcphy0-pwr {

rockchip,pins =

/* camera power en */

<2 RK_PC4 RK_FUNC_GPIO &pcfg_pull_none>;

};

hdmi {

hdmirx_det: hdmirx-det {

rockchip,pins = <1 RK_PD5 RK_FUNC_GPIO &pcfg_pull_up>;

};

tp_int {
ft5x06_dsi0_gpio: ft5x06-dsi0-gpio {
rockchip,pins = <3 RK_PB7 RK_FUNC_GPIO &pcfg_pull_none>,
<3 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>;
};

ft5x06_dsi1_gpio: ft5x06-dsi1-gpio {

rockchip,pins = <3 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>,

<3 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;

};

headphone {

hp_det: hp-det {

rockchip,pins = <1 RK_PC4 RK_FUNC_GPIO &pcfg_pull_none>;

};

hym8563 {

hym8563_int: hym8563-int {

rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_up>;

};

//lcd {

// lcd_rst_gpio: lcd-rst-gpio {

// rockchip,pins = <0 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;

// };

//};

leds {

work_leds_gpio: work-leds-gpio {

rockchip,pins = <1 RK_PC6 RK_FUNC_GPIO &pcfg_pull_down>;

};

sdio-pwrseq {

wifi_enable_h: wifi-enable-h {

rockchip,pins = <0 RK_PC4 RK_FUNC_GPIO &pcfg_pull_up>;

};

//sdmmc {

// sd_s0_pwr: sd-s0-pwr {

// rockchip,pins = <0 RK_PB7 RK_FUNC_GPIO &pcfg_pull_up>;

// };

//};

touch {
touch_gpio: touch-gpio {
rockchip,pins =
<3 RK_PC1 RK_FUNC_GPIO &pcfg_pull_down>,
<3 RK_PC0 RK_FUNC_GPIO &pcfg_pull_up>;
};
};

2、刷机之后发现CTP触摸屏无用。

root@rk3588-buildroot:/#
root@rk3588-buildroot:/# dmesg | grep ft5x
root@rk3588-buildroot:/# dmesg | grep ft5*