Rk3288 7.1 配置屏参 双八1920*1080 有背光屏不亮。

Question

&lvds_panel {
    status = "okay";
    compatible ="simple-panel";
    backlight = <&backlight>;
    bus-format = <MEDIA_BUS_FMT_RGB888_1X24>;
    enable-gpios = <&gpio7 4 GPIO_ACTIVE_HIGH>;
    enable-delay-ms = <350>;
    power-supply = <&vcc_lcd>;
    //rockchip,data-mapping = "jeida";
    rockchip,data-mapping = "vesa";
    rockchip,data-width = <48>;
    rockchip,output = "lvds";

    display-timings {
        native-mode = <&timing2>;

        timing2: timing2 {
                clock-frequency = <148640000>;
                hactive = <1920>;             /* Horizontal display area thd 1024       DCLK            */
                vactive = <1080>;             /* Vertical display area tvd   600        H               */
                hback-porch = <48>;           /* HS Width +Back Porch   160  160   160  DCLK (Thw+ thbp)*/
                hfront-porch = <48>;          /* HS front porch thfp    16   160   216  DCLK            */
                vback-porch = <8>;            /* VS front porch tvfp    1    12    127  H               */
                vfront-porch = <8>;       /* VS Width+Back Porch    23   23    23   H (Tvw+ tvbp)   */
                hsync-len = <32>;             /* HS Pulse Width thw     1     -    140  DCLK            */
                vsync-len = <4>;              /* VS Pulse Width tvw     1     -     20  H               */
                hsync-active = <0>;
                vsync-active = <0>;
                de-active = <0>;
                pixelclk-active = <0>;
        };
};

Answer 1

此问题已解决》》》》》》》》rockchip,output = "lvds";应该为：rockchip,output = "duallvds";

Answer 2

背光不亮说明供电没有达到，看看主板上有没有调节电压的跳帽，如果有的话就调整一下就好

Answer 3

不知道你这个问题是否已经解决, 如果还没有解决的话:

• 你可以参考下这个问题的回答, 看看是否对你有帮助, 链接: https://ask.csdn.net/questions/720142

如果你已经解决了该问题, 非常希望你能够分享一下解决方案, 写成博客, 将相关链接放在评论区, 以帮助更多的人 ^-^