Firefly开源社区

标题: RK3288 Android7.1 LVDS问题 [打印本页]

作者: 碎碎♀念 时间: 2019-4-12 10:36
标题: RK3288 Android7.1 LVDS问题
刚接触RK平台，这屏是双路lvds vesa 8bit RGB888，在MTK平台点亮过，我在rk3288-evb-android-rk808-lvds.dts下面的lvds修改

&lvds_panel {
status = "okay";
compatible ="simple-panel";
//backlight = <&backlight>;
bus-format = <MEDIA_BUS_FMT_RGB888_1X24>;
power-supply = <&vcc_lcd>;
enable-gpios = <&gpio7 4 GPIO_ACTIVE_HIGH>;

复制代码

在system.prop修改

sys.hwc.device.primary=LVDS
#sys.hwc.device.primary=DSI,HDMI-A,LVDS
#sys.hwc.device.extend=LVDS

复制代码

烧录进去，有背光，屏幕一直白红绿蓝四种颜色不断切换,如果是时序不对，dts里哪些参数是设置时序的。

作者: 碎碎♀念 时间: 2019-4-12 10:40
补充：上面显示不全，补上
&lvds_panel {
status = "okay";
compatible ="simple-panel";
//backlight = <&backlight>;
bus-format = <MEDIA_BUS_FMT_RGB888_1X24>;
power-supply = <&vcc_lcd>;
delay,disable = <10>;
enable-gpios = <&gpio7 4 GPIO_ACTIVE_HIGH>;
//rockchip,data-mapping = "jeida";
rockchip,data-mapping = "vesa";
rockchip,data-width = <24>;
rockchip,output = "duallvds";

display-timings {
      native-mode = <&timing0>;
timing0: timing0 {
            clock-frequency = <148000000>;
            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 = <60>;       /* HS front porch thfp 16 160 216  DCLK          */
            vback-porch = <8>;          /* VS front porch tvfp 1 12 127  H             */
            vfront-porch = <33>;    /* 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>;
      };
};

};

作者: subingxi 时间: 2019-4-24 16:51
请给出完整的 rk3288-evb-android-rk808-lvds.dts，为什么我的android 7 没有这个文件。我是在 rk3288-firefly-reload.dts 这个基础上修改的

欢迎光临 Firefly开源社区 (https://dev.t-firefly.com/)