rk3399点32寸HV320FHB LVDS出现花屏

风在摇曳风铃 发表于 2019-2-16 10:26:27

本帖最后由风在摇曳风铃于 2019-2-16 10:31 编辑

如果我点21.5寸屏不会花屏，但是点32寸的屏就出现花屏，调试了半天也查不出到底什么原因，也不知道如何调试。
dts源码如下：

&dsi {
   enable-gpios = <&gpio4 30 GPIO_ACTIVE_HIGH>;
   reset-gpios = <&gpio4 29 GPIO_ACTIVE_LOW>;
status = "okay";
   rockchip,lane-rate = <1000>;
   panel@0 {
            compatible ="simple-panel-dsi";
            reg = <0>;
            backlight = <&backlight>;
   dsi,flags = <(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET)>;
   dsi,format = <MIPI_DSI_FMT_RGB888>;
            //bus-format = <MEDIA_BUS_FMT_RGB888_1X24>;
            dsi,lanes = <4>;
   panel-init-sequence = [
   29 00 06 3C 01 09 00 07 00
   29 00 06 14 01 06 00 00 00
   29 00 06 64 01 0B 00 00 00
   29 00 06 68 01 0B 00 00 00
   29 00 06 6C 01 0B 00 00 00
   29 00 06 70 01 0B 00 00 00
   29 00 06 34 01 1F 00 00 00
   29 00 06 10 02 1F 00 00 00
   29 00 06 04 01 01 00 00 00
   29 00 06 04 02 01 00 00 00
   29 00 06 50 04 20 01 F0 03
   29 00 06 54 04 32 00 B4 00
   29 00 06 58 04 80 07 48 00
   29 00 06 5C 04 0A 00 19 00
   29 00 06 60 04 38 04 0A 00
   29 00 06 64 04 01 00 00 00
   29 01 06 A0 04 06 80 44 00
   29 00 06 A0 04 06 80 04 00
   29 00 06 04 05 04 00 00 00
   29 00 06 80 04 00 01 02 03
   29 00 06 84 04 04 07 05 08
   29 00 06 88 04 09 0A 0E 0F
   29 00 06 8C 04 0B 0C 0D 10
   29 00 06 90 04 16 17 11 12
   29 00 06 94 04 13 14 15 1B
   29 00 06 98 04 18 19 1A 06
   29 02 06 9C 04 33 04 00 00
   ];

      panel-exit-sequence = [
         05 05 01 28
         05 78 01 10
      ];

   display-timings {
         native-mode = <&timing_32inch>;
         //native-mode = <&timing0>;
                     timing0: timing0 {
            /*21.5 inch ok*/
                           clock-frequency = <148500000>;
            hactive = <1920>;
            vactive = <1080>;
            hback-porch = <100>;
            hfront-porch = <160>;
            vback-porch = <25>;
            vfront-porch = <10>;
            hsync-len = <20>;
            vsync-len = <10>;
            hsync-active = <0>;
            vsync-active = <0>;
            de-active = <0>;
            pixelclk-active = <0>;
         };
                     timing_32inch: timing_32inch {

                           clock-frequency = <132975000>;
                           hactive = <1920>;
                           vactive = <1080>;
                           hback-porch = <40>;
                           hfront-porch = <5>;
                           vback-porch = <30>;
                           vfront-porch = <10>;
                           hsync-len = <5>;
                           vsync-len = <5>;
                           hsync-active = <1>;
                           vsync-active = <1>;
                           de-active = <0>;
                           pixelclk-active = <0>;
                     };

   };
   };
};

风在摇曳风铃 发表于 2019-2-19 09:05:41

屏为双8LVDS接口

风在摇曳风铃 发表于 2019-2-22 10:10:22

屏幕显示状态：

风在摇曳风铃 发表于 2019-2-22 10:14:45

能看出是什么原因导致的吗

leung先森 发表于 2019-2-22 10:53:49

风在摇曳风铃发表于 2019-2-22 10:14
能看出是什么原因导致的吗

display-timings和panel-init-sequence需要一起配置

风在摇曳风铃 发表于 2019-2-22 11:17:53

最新屏参

风在摇曳风铃 发表于 2019-2-22 11:19:54

leung先森发表于 2019-2-22 10:53
display-timings和panel-init-sequence需要一起配置

现在已经修改一致了，还是出现问题。配置在下图

风在摇曳风铃 发表于 2019-2-25 17:53:31

这问题已经拖了很久了，有谁能帮忙看下？十分感谢！这是该屏的屏参

rockhard 发表于 2020-5-7 18:25:23

一样的屏，一样的平台，用如下参数，以供其它人参考。
/*
* Copyright (c) 2018 Fuzhou Rockchip Electronics Co., Ltd
*
* SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/

/dts-v1/;
#include "rk3399-common.dtsi"

/ {

};

&dsi {
status = "okay";
rockchip,lane-rate = <862>;

panel@0 {
compatible = "simple-panel-dsi";
reg = <0>;
backlight = <&backlight>;
reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
enable-gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;

reset-delay-ms = <160>;
enable-delay-ms = <160>;
prepare-delay-ms = <160>;
unprepare-delay-ms = <160>;
disable-delay-ms = <160>;
dsi,flags = <(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET)>;

dsi,format = <MIPI_DSI_FMT_RGB888>;
dsi,lanes = <4>;

status = "okay";
panel-init-sequence = [
29 00 06 14 01 08 00 00 00
29 00 06 3c 01 0c 00 0a 00
29 00 06 64 01 0c 00 00 00
29 00 06 68 01 0c 00 00 00
29 00 06 6c 01 0c 00 00 00
29 00 06 70 01 0c 00 00 00
29 00 06 34 01 1f 00 00 00
29 00 06 10 02 1f 00 00 00
29 00 06 04 01 01 00 00 00
29 00 06 04 02 01 00 00 00
29 00 06 50 04 00 01 f0 03
29 00 06 54 04 14 00 64 00
29 00 06 58 04 80 07 a0 00
29 00 06 5c 04 0a 00 19 00
29 00 06 60 04 38 04 0a 00
29 00 06 64 04 01 00 00 00
29 00 06 a0 04 06 c0 00 00
29 00 06 04 05 04 00 00 00
29 00 06 80 04 00 01 02 03
29 00 06 84 04 04 07 05 08
29 00 06 88 04 09 0a 0e 0f
29 00 06 8c 04 0b 0c 0d 10
29 00 06 90 04 16 17 11 12
29 00 06 94 04 13 14 15 1b
29 14 06 98 04 18 19 1a 06
29 78 06 9c 04 33 04 00 00
];

display-timings {
native-mode = <&timing0>;
timing0: timing0 {
//32 inch screen
clock-frequency = <123750000>;
hactive = <1920>;
vactive = <1080>;

hback-porch = <100>;
hsync-len = <20>;
hfront-porch = <160>;
vback-porch = <25>;
vfront-porch = <10>;
vsync-len = <10>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <0>;
pixelclk-active = <0>;
};
};
};
};

&route_dsi {
status = "okay";
logo,mode = "center";
};

tzmwd19833 发表于 2021-6-15 10:21:53

大神，救命啊，我们也遇到了和您相同的问题，RK3399通过东芝775芯片点21寸屏没问题，点32寸京东方屏偶尔上电会上下抖，启动20次左右会出现一次抖屏，出现了就一直抖除非重启。想看下您最终的代码，如能解决问题，必有重谢

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rk3399点32寸HV320FHB LVDS出现花屏