兄弟们，你们有碰到过屏幕触摸坐标不准的问题吗

[fanfan]

&lcd0 {
    /* part 1 */
    lcd_used            = <1>;
    lcd_driver_name     = "default_lcd";
    lcd_backlight	    = <100>;

    /* part 2 */
    lcd_if = <0>;
    lcd_hv_if = <0>;
	
    /* part 3 */
    lcd_x               = <1024>;
    lcd_y               = <600>;
    lcd_width           = <154>;
    lcd_height          = <85>;
    lcd_dclk_freq       = <51>;
    lcd_hbp             = <140>;
    lcd_ht              = <1344>;
    lcd_hspw            = <20>;
    lcd_vbp             = <20>;
    lcd_vt              = <635>;
    lcd_vspw            = <3>;
		
    lcd_pwm_used        = <1>;
    lcd_pwm_ch          = <7>;
    lcd_pwm_freq        = <500>;
    lcd_pwm_pol         = <1>;

    /* part 5 */
    lcd_frm = <1>;
    lcd_io_phase = <0x0000>;
    lcd_gamma_en = <0>;
    lcd_cmap_en = <0>;
    lcd_hv_clk_phase = <0>;
    lcd_hv_sync_polarity= <0>;
				
    /* part 6 */
    lcd_power = "vcc-lcd";
    lcd_pin_power = "vcc-pd";
    pinctrl-0 = <&rgb18_pins_a>;
    pinctrl-1 = <&rgb18_pins_b>;
};

触摸节点

&twi2 {
        status = "okay";
        /* goodix {
         *         status = "okay";
         *         compatible = "goodix,gt911";
         *         reg = <0x5d>;
         *         int-gpios = <&pio PH 7 0 0 1 0>;
         *         reset-gpios = <&pio PH 8 0 0 1 0>;
         *         touchscreen-size-x = <720>;
         *         touchscreen-size-y = <1280>;
         * }; */

        ctp@14 {
                compatible = "allwinner,goodix";
                device_type = "ctp";
                reg = <0x14>;
                status = "okay";
                ctp_name = "gt9xxnew_ts";
                ctp_twi_id = <0x2>;
                ctp_twi_addr = <0x14>;
                ctp_screen_max_x = <0x400>;
                ctp_screen_max_y = <0x258>;
                ctp_revert_x_flag = <0x0>;
                ctp_revert_y_flag = <0x0>;
                ctp_exchange_x_y_flag = <0x0>;
                ctp_int_port = <&pio PH 7 6 1 3 0xffffffff>;
                ctp_wakeup   = <&pio PH 8 1 1 3 0xffffffff>;
                /* ctp-supply = <&reg_aldo2>;*/
                /* ctp_power_ldo = <&reg_dldo1>; */
                /* ctp_power_ldo_vol = <3300>; */
        };   
};

屏幕可以触摸，但是不准

[WhycanService]

gt911和gsl的一样需要下载固件，固件不对就会导致偏移。例如gsl的这个补丁

固件具体可以询问屏厂看看他们能不能提供

[whycan]

@fanfan

问厂家要固件，否则要自己做一个：下单买了一个 汇顶 GT911/GT9xx 电容触摸屏产测工具