AIO-3399 LVDS屏颜色异常

baiying303 · 发表于 2018-9-4 16:59:03

求助求助！！！！

环境：AIO-3399J
屏幕：单LVDS，3lane，6bit
问题：点亮后画面颜色异常
dts代码：

&dsi {
status = "okay";
dsi_panel: panel {
compatible ="simple-panel-dsi";
reg = <0>;
//ddc-i2c-bu
//power-supply = <&vcc_lcd>;
//pinctrl-0 = <&lcd_panel_reset &lcd_panel_enable>;
backlight = <&backlight>;
/*
enable-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
reset-gpios = <&gpio4 29 GPIO_ACTIVE_LOW>;
*/
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_RGB666>;
bus-format = <MEDIA_BUS_FMT_RGB666_1X18>;
dsi,lvds-force-clk = <560>; // 500/2/3 ~= 83.5Mhz
dsi,lanes = <3>;
dsi,channel = <0>;
enable-delay-ms = <35>;//takes for the panel to display
prepare-delay-ms = <6>;//take for the panel to receive video data
unprepare-delay-ms = <0>;//take for the panel to display off
disable-delay-ms = <20>;//takes for the panel to power off
//1024*600 IVO
/*
size,width = <222>;
size,height = <125>;
*/
//1280*800 IVO
size,width = <217>;
size,height = <136>;
status = "okay";
panel-init-sequence = [
29 02 06 3C 01 09 00 07 00 //PPI_TX_RX_TA,[10:0]=1.5*PPI_LPTXTIMECNT=9,[26:16]=(5*PPI_LPTXTIMECNT-3)*4=7
29 02 06 14 01 06 00 00 00 //PPI_LPTXTIMECNT=6
29 02 06 64 01 0B 00 00 00 //PPI_D0S_CLRSIPOCOUNT
29 02 06 68 01 0B 00 00 00 //PPI_D1S_CLRSIPOCOUNT
29 02 06 6C 01 0B 00 00 00 //PPI_D2S_CLRSIPOCOUNT
29 02 06 70 01 0B 00 00 00 //PPI_D3S_CLRSIPOCOUNT
29 02 06 34 01 0F 00 00 00 //OK //PPI_LANEENABLE
29 02 06 10 02 0F 00 00 00 //OK //DSI_LANEENABLE
29 02 06 04 01 01 00 00 00 //OK //PPI_STARTPPI
29 02 06 04 02 01 00 00 00 //DSI_START,has removed
29 02 06 50 04 20 00 F0 03 //OK //VPCTRL, 00000011 11110000 00000001 00100000 = bit0(0:msf disable),bit8(0:RGB666),bit17,18,19(0:hs,de,vs active Low),bit29:20(3F:vs delay 63)
//1280*800
29 02 06 54 04 20 00 50 00 //OK //HTIM1, 00000000 10110100 00000000 00110010 = bit8:0(0x14:hs pulse width 20pixel),bit24:16(0xf0: h back porch 240pixel)
29 02 06 58 04 00 05 30 00 //OK //HTIM2, 00000000 01001000 00000111 10000000 = bit10:0(0x400:h active 1024pixel),bit24:16(0x3c: h front porch 60pixel)
29 02 06 5C 04 06 00 0e 00 //OK //VTIM1, 00000000 00011001 00000000 00001010 = bit7:0(0x0c:vs pulse width 12pixel),bit23:16(0x14: v back porch 20pixel)
29 02 06 60 04 20 03 03 00 //OK //VTIM2, 00000000 00001010 00000100 00111000 = bit10:0(0x258:v active 600pixel),bit23:16(0x0c: v front porch 12pixel)
29 02 06 64 04 01 00 00 00 //OK //VFUEN, 1 update timing parameters(HTIM1,HTIM2...)
29 02 06 A0 04 06 80 44 00 //OK //LVPHY0, 00000000 01000100 10000000 00000110 = bit4:0(00110:vf 60~85MHZ),bit6:5(00:60~85Mhz),bit10(1:reduced range)
29 02 06 A0 04 06 80 04 00 //OK //LVPHY0, bit22(0:normal ,1:reset)
29 02 06 04 05 04 00 00 00 //OK //SYSRST,
29 02 06 80 04 00 01 02 03 //R0,R1,R2,R3
29 02 06 84 04 04 07 05 08 //R4,R7,R5,G0
29 02 06 88 04 09 0A 0E 0F //G1,G2,G6,G7
29 02 06 8C 04 0B 0C 0D 10 //G3,G4,G5,B0
29 02 06 90 04 16 17 11 12 //B6,B7,B1,B2
29 02 06 94 04 13 14 15 1B //B3,B4,B5,0
29 02 06 98 04 18 19 1A 06 //HS,VS,DE,R6
29 02 06 9C 04 41 00 00 00 //LVCFG, 00000000 00000000 00000100 00110001 = bit0(1:lvds enbale),bit1(0:singlelvds,1:duallvds),bit7:4(3:pclk divide option divide by 3),bit11:10(01:DCLK=DSI_CLK/2)
];
panel-exit-sequence = [
05 05 01 28
05 78 01 10
];
power_ctr: power_ctr {
rockchip,debug = <0>;
lcd_pwr_en: lcd-pwr-en {
gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&lcd_panel_pwr_en>;
rockchip,delay = <10>;
};
lcd_rst: lcd-rst {
gpios = <&gpio2 27 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&lcd_panel_reset>;
rockchip,delay = <6>;
};
};
disp_timings: display-timings {
native-mode = <&timing0>;
timing0: timing0 {
//1280*800
clock-frequency = <70000000>; //83460000 @60
hactive = <1280>;
vactive = <800>;
hsync-len = <32>; //20, 50
hback-porch = <80>; //50, 56
hfront-porch = <48>;//50, 30 //1580
vsync-len = <6>;
vback-porch = <14>;
vfront-porch = <3>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <0>;
pixelclk-active = <1>;
};
};
};
};

复制代码

baiying303 · 发表于 2018-9-8 17:29:38

问题已解决，将如下LVDS输出选择的配置删除即可

//29 02 06 80 04 00 01 02 03 //R0,R1,R2,R3
//29 02 06 84 04 04 07 05 08 //R4,R7,R5,G0
//29 02 06 88 04 09 0A 0E 0F //G1,G2,G6,G7
//29 02 06 8C 04 0B 0C 0D 10 //G3,G4,G5,B0
//29 02 06 90 04 16 17 11 12 //B6,B7,B1,B2
//29 02 06 94 04 13 14 15 1B //B3,B4,B5,0
//29 02 06 98 04 18 19 1A 06 //HS,VS,DE,R6

复制代码

leung先森 · 发表于 2018-9-10 10:15:24

baiying303 发表于 2018-9-8 17:29
问题已解决，将如下LVDS输出选择的配置删除即可

清晰明膫，点赞

lunary · 发表于 2018-9-10 10:49:30

高手，能请教一下，我的屏幕分辨率是480*800的7寸屏，怎么能让这块板子支持吗？谢谢。也是LVDS接口。

风在摇曳风铃 · 发表于 2019-2-18 10:51:19

有点看不懂，这里的注释：
//PPI_TX_RX_TA,[10:0]=1.5*PPI_LPTXTIMECNT=9,[26:16]=(5*PPI_LPTXTIMECNT-3)*4=7

这个7值是怎么算出来的

风在摇曳风铃 · 发表于 2019-2-18 16:29:06

29 02 06 A0 04 06 80 44 00 //OK //LVPHY0, 00000000 01000100 10000000 00000110 = bit4:0(00110:vf 60~85MHZ),bit6:5(00:60~85Mhz),bit10(1:reduced range)
这段指令是设置时钟频率吗？有点看不懂

lizy · 发表于 2020-4-13 12:03:55

能提供下配置的xls文件吗

石头剪刀布 · 发表于 2020-8-28 10:49:05

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