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标题: RK3568J 配置EDP，没有设备接点，屏幕也无输出 [打印本页]

作者: dvae_wb 时间: 2022-11-9 12:34
标题: RK3568J 配置EDP，没有设备接点，屏幕也无输出
修改vi device/rockchip/.BoardConfig.mk
改成
#!/bin/bash
CMD=`realpath $BASH_SOURCE`
CUR_DIR=`dirname $CMD`
source $CUR_DIR/firefly-rk3568-buildroot.mk
# Kernel dts
#export RK_KERNEL_DTS=rk3568-firefly-aioj
export RK_KERNEL_DTS=rk3568-firefly-aioj-edp-M156X40

# PRODUCT MODEL
export RK_PRODUCT_MODEL=AIO_3568J
重新编译build.sh，编译后有rk3568-firefly-aioj-edp-M156X40.dtb
烧写入板子，EDP无输出，/dev/目录下也没有FB的设备节点，DTS只修改了屏幕Timing，其他没有修改，DTS修改如下：

display-timings {
native-mode = <&timing0>;

            timing0: timing0 {
                     clock-frequency = <138780000>;
                     hactive = <1920>;
                     vactive = <1080>;
                     hfront-porch = <100>;
                     hsync-len = <20>;
                     hback-porch = <210>;
                     vfront-porch = <12>;
                     vsync-len = <3>;
                     vback-porch = <36>;
                     hsync-active = <0>;
                     vsync-active = <0>;
                     de-active = <0>;
                     pixelclk-active = <0>;
            };
      };

tchip_askquestions

log.txt

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作者: dvae_wb 时间: 2022-11-9 16:04
屏幕已点亮

作者: dvae_wb 时间: 2022-11-9 16:22
目前遇到另一个问题，屏幕在SD卡固件是点亮了，但是烧写到EMMC依然无法点亮，SD卡里uboot的部分log如下：
Rockchip UBOOT DRM driver version: v1.0.1
VOP have 1 active VP
vp0 have layer nr:6[0 2 4 1 3 5 ], primary plane: 4
vp1 have layer nr:0[], primary plane: 0
vp2 have layer nr:0[], primary plane: 0
Using display timing dts
edp@fe0c0000: detailed mode clock 138780 kHz, flags[a]
H: 1920 2020 2040 2250
V: 1080 1092 1095 1131
bus_format: 100e
VOP update mode to: 1920x1080p0, type: eDP0 for VP0
VOP VP0 enable Smart0[500x501->500x501@710x289] fmt[2] addr[0x7df20000]
Link Training success!

烧写到EMMC后，uboot的log如下：
Rockchip UBOOT DRM driver version: v1.0.1
VOP have 1 active VP
vp0 have layer nr:6[0 2 4 1 3 5 ], primary plane: 4
vp1 have layer nr:0[], primary plane: 0
vp2 have layer nr:0[], primary plane: 0
edp@fe0c0000 disconnected

作者: passby 时间: 2023-4-11 17:09

dvae_wb 发表于 2022-11-9 16:04
屏幕已点亮

请问问题是怎么解决的？

我现在 cat /sys/kernel/debug/dri/0/summary

显示VOP1已经打开EDP了但是屏幕完全黑的

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