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标题: rk3399点32寸HV320FHB LVDS出现花屏 [打印本页]

作者: 风在摇曳风铃 时间: 2019-2-16 10:26
标题: rk3399点32寸HV320FHB LVDS出现花屏
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>;
                     };

      };
   };
};

作者: 风在摇曳风铃 时间: 2019-2-19 09:05
屏为双8LVDS接口

作者: 风在摇曳风铃 时间: 2019-2-22 10:10
屏幕显示状态：

TIM图片20190222100322.jpg (85.46 KB, 下载次数: 179)

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

作者: leung先森 时间: 2019-2-22 10:53

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

作者: 风在摇曳风铃 时间: 2019-2-22 11:17
最新屏参

捕获.JPG (76.34 KB, 下载次数: 161)

捕获1.JPG (34.74 KB, 下载次数: 159)

作者: 风在摇曳风铃 时间: 2019-2-22 11:19

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

作者: 风在摇曳风铃 时间: 2019-2-25 17:53
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

屏参.JPG (79.58 KB, 下载次数: 160)

作者: rockhard 时间: 2020-5-7 18:25
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";
};

作者: tzmwd19833 时间: 2021-6-15 10:21
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

作者: tzmwd19833 时间: 2021-6-15 10:49
我手机号17600771658同微信

作者: czyhit 时间: 2021-8-16 09:43
看了一下萤火虫的官方提供的LVDS屏幕HSX101H40C-L28B的参考，发现rk3399pro-firefly-aioc-lvds-HSX101H40C.dts的clock-frequency = <72000000>; //@60，而屏幕数据表的最高频率是70MHz，这个72MHz和70MHz匹配不了吗：
ITEM Symbol Min Typ Max Unit Note
DCLK Frequency tCLK 60 65 70 MHz
Period tHP 814 848 --
Width tWH 4 8 --
Hsync
Width-Active tWHA 800
tCLK
Period tVP 1286 1312 --
Width tWV 2 4 -
Vsync
Width-Active tWVA 1280
tHP
Horizontal back porch tHBP 8 8 --
Horizontal front porch tHFP 2 32 --
tCLK
Vertical back porch tVBP 2 11 --
Data
Enable
Vertical front porch tVFP 2 17 --
tHP

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