LCD

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Allwinner SoCs can output display signals to LCD panels.

For devices with LCD displays, the resolution and timing values can be found in the FEX file.

Software

Mainline U-Boot

Support for LCD displays is available in mainline U-boot, starting from release v2015.04.

FEX conversion rules

The timing definitions and values are slightly different from the FEX files. The following is a translation table.

Value CONFIG_DM_VIDEO CONFIG_VIDEO_LCD_MODE FEX file values Notes
Horizontal resolution (pixels) hactive x lcd_x
Vertical Resolution (pixels) vactive y lcd_y
Color depth / format data-mapping depth lcd_frm:0 => depth:24 (to be verified)

lcd_frm:1 => depth:18

Pixel Clock (KHz) clock-frequency (Hz) pclk_khz lcd_dclk_freq * 1000
Horizontal Sync Length hsync-len hs lcd_hv_hspw (with a minimum of 1) [1]
Vertical Sync Length vsync-len vs lcd_hv_vspw (with a minimum of 1) [1]
Left Margin (Horizontal back porch) hback-porch le lcd_hbp - hs [1]
Right Margin (Horizontal front porch) hfront-porch ri lcd_ht - lcd_x - lcd_hbp [1]
Top Margin (Vertical back porch) vback-porch up lcd_vbp - vs [1]
Bottom Margin (Vertical front porch) vfront-porch lo [1] 
sun[457i]: (lcd_vt / 2) - lcd_y - lcd_vbp
sun8i: lcd_vt - lcd_y - lcd_vbp
u-boot SYNC flags NA sync:3 NA
u-boot VMODE flags NA vmode:0 NA
  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Definition of back porch / front porch / sync pulse based on Wikipedia

Mainline Linux (simple-panel)

Conversion from LCD timing from u-boot configuration string to struct drm_display_mode in mainline kernel: 

CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:18,pclk_khz:100000,le:799,ri:260,up:15,lo:16,hs:1,vs:1,sync:3,vmode:0"
static const struct drm_display_mode unknown_display = {
    .clock = 100000,                    // pclk_khz (FEX: lcd_dclk_freq * 1000)
    .hdisplay = 1024,                   // x (FEX: lcd_x)
    .hsync_start = 1024 + 260,          // x + ri
    .hsync_end = 1024 + 260 + 1,        // x + ri + hs
    .htotal = 1024 + 260 + 1 + 799,     // x + ri + hs + le (FEX: lcd_ht)
    .vdisplay = 768,                    // y (FEX: lcd_y)
    .vsync_start = 768 + 16,            // y + lo
    .vsync_end = 768 + 16 + 1,          // y + lo + vs
    .vtotal = 768 + 16 + 1 + 15,        // y + lo + vs + up (FEX: lcd_vt / 2)
    .vrefresh = 60,  // 
};

Example timing calculation from a INNOLUX EJ070NA-01J 7inch LVDS LCD datasheet (tested on DS167 board):

7inch-LVDS-example.png

Corresponding u-boot configuration string: 

CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:51000,le:22,ri:297,up:1,lo:33,hs:1,vs:1,sync:3,vmode:0"

Note: Some values above such as pclk, le, ri,lo...etc have margins as seen from above datasheet. You may get perfectly fine picture if you set ri=296 instead of ri=297 here. You might experience visual artifacts if your settings are beyond defined limits in the datasheet.

Script for automated conversion

The following ruby script takes fex file name as a command line parameter and produces the corresponding config line for u-boot according to the rules from the table above.

Here is the ruby script (click on the 'Expand' link to see it): 

#!/usr/bin/env ruby

if !ARGV[0] || !File.exists?(ARGV[0]) then
  abort "Usage: ruby #{__FILE__} [fex_file_name]\n"
end

def parse_fex_section(filename, section)
  results = {}
  current_section = ""
  File.open(filename).each_line {|l|
    current_section = $1 if l =~ /^\[(.*?)\]/
    next if current_section != section
    results[$1] = $2.strip if l =~ /^(\S+)\s*\=\s*(.*)/
    results[$1] = $2.to_i if l =~ /^(\S+)\s*\=\s*(\d+)\s*$/
  }
  return results
end

def print_video_lcd_mode(lcd0_para, vt_div)
  x        = lcd0_para["lcd_x"]
  y        = lcd0_para["lcd_y"]
  depth    = { 0 => 24, 1 => 18 }[lcd0_para["lcd_frm"]]
  pclk_khz = lcd0_para["lcd_dclk_freq"] * 1000
  hs       = [1, (lcd0_para["lcd_hv_hspw"] || lcd0_para["lcd_hspw"])].max
  vs       = [1, (lcd0_para["lcd_hv_vspw"] || lcd0_para["lcd_vspw"])].max
  le       = lcd0_para["lcd_hbp"] - hs
  ri       = lcd0_para["lcd_ht"] - x - lcd0_para["lcd_hbp"]
  up       = lcd0_para["lcd_vbp"] - vs
  lo       = lcd0_para["lcd_vt"] / vt_div - y - lcd0_para["lcd_vbp"]

  abort "Unsupported 'lcd_frm' parameter" if !depth

  printf("CONFIG_VIDEO_LCD_MODE=\"" +
         "x:#{x},y:#{y},depth:#{depth},pclk_khz:#{pclk_khz}," +
         "le:#{le},ri:#{ri},up:#{up},lo:#{lo},hs:#{hs},vs:#{vs}," +
         "sync:3,vmode:0\"\n")
end

lcd0_para = parse_fex_section(ARGV[0], "lcd0_para")
abort "Not a valid 'lcd0_para' section" if lcd0_para["lcd_used"] != 1

printf("== for sun[457]i ==\n")
print_video_lcd_mode(lcd0_para, 2)

printf("\n== for sun[68]i ==\n")
print_video_lcd_mode(lcd0_para, 1)

Dithering test program

If in doubt regarding 18-bit vs. 24-bit depth, it is possible to compile and run on the device the following simple test program. It should show a smooth gradient picture. If the gradient looks blocky, then the depth most likely needs to be changed to 18.

Here is the C source code (click on the 'Expand' link to see it): 

/* gcc -O2 -o fbgradient fbgradient.c */

#include <stdint.h>
#include <stdio.h>
#include <fcntl.h>
#include <linux/fb.h>
#include <sys/ioctl.h>
#include <sys/mman.h>

int main()
{
    int fd, x, y;
    uint32_t *fb;
    struct fb_fix_screeninfo finfo;
    struct fb_var_screeninfo vinfo;

    if ((fd = open("/dev/fb0", O_RDWR)) == -1) {
        printf("Can't open /dev/fb0\n");
        return 1;
    }

    if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo)) {
        printf("FBIOGET_FSCREENINFO failed\n");
        return 1;
    }

    if (ioctl(fd, FBIOGET_VSCREENINFO, &vinfo)) {
        printf("FBIOGET_VSCREENINFO failed\n");
        return 1;
    }

    if (vinfo.bits_per_pixel != 32) {
        printf("Only 32bpp framebuffer is supported\n");
        return 1;
    }

    fb = mmap(0, finfo.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
    if (fb == (void *)-1) {
        printf("mmap failed\n");
        return 1;
    }

    for (y = 0; y < vinfo.yres; y++)
        for (x = 0; x < vinfo.xres; x++)
            fb[y * vinfo.xres + x] = (255 * x / vinfo.xres) * 0x000100 +
                                     (255 * y / vinfo.yres) * 0x010001;

    return 0;
}

Bulk automatic conversion of all FEX files from the sunxi-boards repository

The results of automatic FEX files conversion are listed in the table below. The CONFIG_VIDEO_LCD_MODE line should be accurate and calculated exactly as described in the first section of this page. But the GPIO settings need careful human review. "Green" settings are likely to be usable as-is. "Yellow" most definitely need some tweaks. "Orange" are impossible to support with the current u-boot code.

CONFIG_VIDEO_LCD_PANEL_LVDS conversion rules - http://lists.denx.de/pipermail/u-boot/2015-January/200168.html

CONFIG_VIDEO_LCD_DCLK_PHASE conversion rules - http://lists.denx.de/pipermail/u-boot/2015-January/201751.html

SoC Device info FEX file CONFIG_VIDEO_LCD_MODE u-boot settings
A20 Mele_M3.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 Olimex_A10-OLinuXino-Lime a10-olinuxino-lime.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10s Olimex_A10s-OLinuXino-Micro a10s-olinuxino-m.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:16,ri:209,up:22,lo:24,hs:30,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PB9"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10s a10s-olinuxino-m-lcd10.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:45000,le:150,ri:16,up:21,lo:2,hs:10,vs:2,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PB9"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10s a10s-olinuxino-m-lcd7.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:16,ri:209,up:22,lo:22,hs:30,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PB9"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 Olimex_A13-OLinuXino a13-olinuxino.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:600,depth:18,pclk_khz:40000,le:88,ri:40,up:19,lo:5,hs:128,vs:4,sync:3,vmode:0"
A13 a13-olinuxino-lcd10.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:45000,le:150,ri:16,up:21,lo:2,hs:10,vs:2,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 a13-olinuxino-lcd7.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:16,ri:209,up:22,lo:22,hs:30,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 Olimex_A13-OLinuXino-Micro a13-olinuxinom.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:600,depth:18,pclk_khz:40000,le:88,ri:40,up:19,lo:5,hs:128,vs:4,sync:3,vmode:0"
A13 a13-olinuxinom-lcd10.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:45000,le:150,ri:16,up:21,lo:2,hs:10,vs:2,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PB10"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 a13-olinuxinom-lcd7.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:16,ri:209,up:22,lo:22,hs:30,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PB10"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 a13_mid.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:39,ri:88,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Olimex_A20-OLinuXino-Lime a20-olinuxino_lime.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:16,ri:209,up:22,lo:22,hs:30,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Olimex_A20-OLinuXino-Lime2 a20-olinuxino_lime2.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:16,ri:209,up:22,lo:22,hs:30,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Olimex_A20-OLinuXino-Micro a20-olinuxino_micro.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 a20-olinuxino_micro-lcd10.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:45000,le:150,ri:16,up:21,lo:2,hs:10,vs:2,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 a20-olinuxino_micro-lcd7.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:16,ri:209,up:22,lo:22,hs:30,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 A70x a70x.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Ainol_AW1 ainol_aw1.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:40000,le:87,ri:112,up:38,lo:141,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 Ampe_A76 ampe_a76.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:45,ri:82,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 banana_pi_35lcd.fex 
CONFIG_VIDEO_LCD_MODE="x:320,y:240,depth:24,pclk_khz:7000,le:38,ri:20,up:15,lo:4,hs:30,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH12"
CONFIG_VIDEO_LCD_BL_EN="PH8"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 banana_pi_5lcd.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:30000,le:40,ri:40,up:29,lo:13,hs:48,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH12"
CONFIG_VIDEO_LCD_BL_EN="PH8"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 banana_pi_7lcd.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:24,pclk_khz:55000,le:100,ri:170,up:10,lo:15,hs:50,vs:10,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH12"
CONFIG_VIDEO_LCD_BL_EN="PH8"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 banana_pro_35lcd.fex 
CONFIG_VIDEO_LCD_MODE="x:320,y:240,depth:24,pclk_khz:7000,le:38,ri:20,up:15,lo:4,hs:30,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH12"
CONFIG_VIDEO_LCD_BL_EN="PH8"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 banana_pro_5lcd.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:30000,le:40,ri:40,up:29,lo:13,hs:48,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH12"
CONFIG_VIDEO_LCD_BL_EN="PH8"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 banana_pro_7lcd.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:24,pclk_khz:55000,le:100,ri:170,up:10,lo:15,hs:50,vs:10,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH12"
CONFIG_VIDEO_LCD_BL_EN="PH8"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 cherry728.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:24,pclk_khz:51000,le:45,ri:274,up:22,lo:12,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH2"
CONFIG_VIDEO_LCD_BL_EN="PH9"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 chuwi-v7-cw0825.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:24,pclk_khz:51000,le:19,ri:300,up:6,lo:31,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
VIDEO_LCD_HITACHI_TX18D42VM=y
VIDEO_LCD_SPI_CS="PA0"
VIDEO_LCD_SPI_SCLK="PA1"
VIDEO_LCD_SPI_MOSI="PA2"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 Coby_MID7042 coby_mid7042.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:214,ri:40,up:33,lo:11,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 coby_mid8042.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:600,depth:18,pclk_khz:45000,le:85,ri:170,up:38,lo:11,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 coby_mid9742.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:18,pclk_khz:100000,le:479,ri:544,up:5,lo:26,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 Cubietech_Cubieboard cubieboard.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 cubieboard_512.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Cubietech_Cubietruck cubietruck.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 dns_m82.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:24,pclk_khz:64000,le:198,ri:120,up:21,lo:15,hs:2,vs:2,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 Forfun_Q88DB forfun_q88db.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:87,ri:40,up:31,lo:13,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 Topwise_A721 gooseberry_a721.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 h6.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:24,pclk_khz:45000,le:159,ri:16,up:22,lo:12,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 Miniand_Hackberry hackberry.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 HDB_MID_S906 hbd_mid_s906.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:42000,le:110,ri:386,up:22,lo:130,hs:48,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 HSG_H702 hsg_h702.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:39000,le:5,ri:83,up:20,lo:22,hs:40,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 Hyundai_A7 hyundai_a7.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:40,ri:40,up:29,lo:13,hs:48,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 Hyundai_A7HD hyundai_a7hd.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:24,pclk_khz:51000,le:45,ri:274,up:22,lo:12,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH2"
CONFIG_VIDEO_LCD_BL_EN="PH9"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 inet-k970.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:18,pclk_khz:65000,le:120,ri:180,up:22,lo:13,hs:20,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 Inet_97f inet97f-ii.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 Inet_86vs inet_86vs.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 Inet_86vz inet_86vz.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Inet_k70hc inet_k70hc.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:51000,le:138,ri:162,up:22,lo:10,hs:20,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Yonnet_Interra-3 interra-3.fex 
CONFIG_VIDEO_LCD_MODE="x:1280,y:800,depth:18,pclk_khz:69000,le:19,ri:118,up:9,lo:6,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Inet_k100c k1001l1c.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:24,pclk_khz:52000,le:32,ri:287,up:22,lo:12,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Kurio_7S kurio_7s.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:24,pclk_khz:51000,le:157,ri:160,up:20,lo:12,hs:3,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 ltm7.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 MarsBoard_A10 marsboard_a10.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Merrii_Hummingbird_A20 merrii_hummingbird_a20.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH11"
CONFIG_VIDEO_LCD_BL_EN="PH12"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 Pineriver_H24 mini-x.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 MSI_Primo73 msi_primo73.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:60000,le:60,ri:160,up:13,lo:12,hs:100,vs:10,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 myaudio-708m.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:45,ri:210,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Olimex_A20-SOM olimex_a20_som.fex 
CONFIG_VIDEO_LCD_MODE="x:1366,y:768,depth:18,pclk_khz:70000,le:53,ri:20,up:22,lo:17,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 LinkSprite_pcDuino pcduino.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 pov_protab2_ips9.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:18,pclk_khz:100000,le:480,ri:260,up:6,lo:16,hs:320,vs:10,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 pov_protab2_ips_3g.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:18,pclk_khz:100000,le:480,ri:260,up:6,lo:16,hs:320,vs:10,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 Q8 pov_tab_p703.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:45,ri:210,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 Prestigio_PMP3670B prestigio_pmp3670b.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:30000,le:45,ri:79,up:22,lo:13,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 Sanei_N90 sanei_n90.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:18,pclk_khz:100000,le:480,ri:260,up:6,lo:16,hs:320,vs:10,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 XW711 szenio_1207c4.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:45,ri:82,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 T702A t702a.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 TZX-Q8-713B6 tzx-q8-713b6.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:87,ri:40,up:31,lo:13,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 TZX-Q8-713B7 tzx-q8-713b7.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:87,ri:40,up:31,lo:13,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Wexler_TAB_7200 wexler_tab_7200.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:210,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A13 Along_rt713 xzpad700.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:2,ri:78,up:29,lo:13,hs:48,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="AXP0-0"
CONFIG_VIDEO_LCD_BL_EN="AXP0-1"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 yarvik_tab260.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A20 Yones_Toptech_BD1078 yonestoptech_bd1078.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:24,pclk_khz:63000,le:32,ri:287,up:22,lo:12,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_PANEL_LVDS=y
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A10 eoma68_a10.fex 
CONFIG_VIDEO_LCD_MODE="x:1366,y:768,depth:18,pclk_khz:75000,le:12,ri:171,up:12,lo:25,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_PANEL_LVDS=y
# warning: contradicting 'lcd_pwm_used' and 'lcd_pwm_not_used'
A31 Merrii_Hummingbird_A31 hummingbird_a31.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:65000,le:45,ri:82,up:22,lo:547,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
# warning: could not decode 'lcd_power' (port:power2<1><0><default><1>)
CONFIG_VIDEO_LCD_BL_EN="PM1"
CONFIG_VIDEO_LCD_BL_PWM="PH13"
A20 ICOU_Fatty_I icou_fatty_i.fex 
CONFIG_VIDEO_LCD_MODE="x:768,y:1024,depth:18,pclk_khz:66000,le:56,ri:60,up:30,lo:36,hs:64,vs:50,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
# warning: 'lcd_gpio_0' = 'port:PA06<1><0><default><1>'
# warning: 'lcd_gpio_1' = 'port:PA07<1><0><default><1>'
# warning: 'lcd_gpio_2' = 'port:PH24<1><0><default><0>'
# warning: 'lcd_gpio_3' = 'port:PA05<1><0><default><1>'
# warning: 'lcd_gpio_4' = 'port:PH23<1><0><default><0>'
# warning: 'lcd_gpio_5' = 'port:PH22<1><0><default><0>'
A10 Inet_3fbt inet_3fbt.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:24,pclk_khz:100000,le:799,ri:260,up:15,lo:16,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
# warning: unsupported 'lcd_lvds_mode' : 1
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A23 ippo_q8h_v1.0.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
# warning: could not decode 'lcd_power' (port:power2<1><0><default><1>)
CONFIG_VIDEO_LCD_BL_EN="PH6"
CONFIG_VIDEO_LCD_BL_PWM="PH0"
# warning: 'lcd_gpio_0' = 'port:PH07<1><0><default><1>'
A23 ippo_q8h_v1.2.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:87,ri:167,up:31,lo:13,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
# warning: could not decode 'lcd_power' (port:power2<1><0><default><1>)
CONFIG_VIDEO_LCD_BL_EN="PH6"
CONFIG_VIDEO_LCD_BL_PWM="PH0"
# warning: 'lcd_gpio_0' = 'port:PH07<1><0><default><1>'
A23 ippo_q8h_v2.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:45,ri:209,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
# warning: could not decode 'lcd_power' (port:power2<1><0><default><1>)
CONFIG_VIDEO_LCD_BL_EN="PH6"
CONFIG_VIDEO_LCD_BL_PWM="PH0"
# warning: 'lcd_gpio_0' = 'port:PH07<1><0><default><1>'
A23 Ippo_q8h ippo_q8h_v5.fex 
CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:18,pclk_khz:33000,le:87,ri:168,up:31,lo:13,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
# warning: could not decode 'lcd_power' (port:power2<1><0><default><1>)
CONFIG_VIDEO_LCD_BL_EN="PH6"
CONFIG_VIDEO_LCD_BL_PWM="PH0"
# warning: 'lcd_gpio_0' = 'port:PH07<1><0><default><1>'
A20 Itead_ibox iteaduino_plus_a20.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:51000,le:138,ri:162,up:22,lo:10,hs:20,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
# warning: contradicting 'lcd_pwm_used' and 'lcd_pwm_not_used'
A20 merrii_m2.fex 
CONFIG_VIDEO_LCD_MODE="x:1920,y:1080,depth:24,pclk_khz:148000,le:19,ri:260,up:19,lo:25,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
# warning: unsupported 'lcd_lvds_ch' : 1
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A31s MSI_Primo81 msi_primo81.fex 
CONFIG_VIDEO_LCD_MODE="x:768,y:1024,depth:18,pclk_khz:66000,le:56,ri:60,up:30,lo:36,hs:64,vs:50,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
# warning: could not decode 'lcd_power' (port:power2<1><0><default><1>)
CONFIG_VIDEO_LCD_BL_EN="PA25"
CONFIG_VIDEO_LCD_BL_PWM="PH13"
# warning: 'lcd_gpio_0' = 'port:PH10<1><0><2><1>'
# warning: 'lcd_gpio_1' = 'port:PH11<1><0><2><1>'
# warning: 'lcd_gpio_2' = 'port:PA26<1><0><2><1>'
# warning: 'lcd_gpio_3' = 'port:PH09<1><0><2><1>'
A31s sinlinx_a31s.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:66000,le:90,ri:160,up:3,lo:127,hs:70,vs:20,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
# warning: could not decode 'lcd_power' (port:power2<1><0><default><1>)
CONFIG_VIDEO_LCD_BL_EN="PA25"
CONFIG_VIDEO_LCD_BL_PWM="PH13"
A31s Yones_Toptech_BS1078 yonestoptech_bs1078.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:24,pclk_khz:70000,le:120,ri:180,up:17,lo:15,hs:20,vs:3,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=0
CONFIG_VIDEO_LCD_PANEL_LVDS=y
# warning: could not decode 'lcd_power' (port:power2<1><0><default><1>)
CONFIG_VIDEO_LCD_BL_EN="PA25"
CONFIG_VIDEO_LCD_BL_PWM="PH13"
# warning: 'lcd_gpio_0' = 'port:PH10<1><0><2><1>'
# warning: 'lcd_gpio_1' = 'port:PH11<1><0><2><1>'
# warning: 'lcd_gpio_2' = 'port:PA23<1><0><2><0>'
# warning: 'lcd_gpio_3' = 'port:PH09<1><0><2><1>'
A10 Gemei_G9 zatab.fex 
CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:24,pclk_khz:100000,le:799,ri:260,up:15,lo:16,hs:1,vs:1,sync:3,vmode:0"
CONFIG_VIDEO_LCD_PANEL_LVDS=y
# warning: unsupported 'lcd_lvds_mode' : 1
CONFIG_VIDEO_LCD_POWER="PH8"
CONFIG_VIDEO_LCD_BL_EN="PH7"
CONFIG_VIDEO_LCD_BL_PWM="PB2"
A31 A31_EVB.fex 
# warning: unsupported 'lcd_if' : 5 (LCD_IF_EDP)
A10 Itead_Iteaduino_Plus iteaduino_plus_a10.fex 
# warning: unsupported 'lcd_frm' :

LCD panel

LCD LVDS panels can be found on old notebook or desktop monitor.

Model Inch u-boot settings
QD17EL07 17" 
CONFIG_VIDEO_LCD_MODE="x:1280,y:1024,depth:24,pclk_khz:108000,le:56,ri:60,up:29,lo:3,hs:10,vs:10,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=1
LTN150XB 15" 
CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:18,pclk_khz:65000,le:88,ri:24,up:29,lo:3,hs:136,vs:6,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=1
B150XG01
LTD154EX0K 		15" 16:9 
CONFIG_VIDEO_LCD_MODE="x:1280,y:800,depth:18,pclk_khz:71100,le:88,ri:48,up:15,lo:2,hs:32,vs:6,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=1
HSD121PS11 12.1" 
CONFIG_VIDEO_LCD_MODE="x:800,y:600,depth:18,pclk_khz:40000,le:88,ri:40,up:23,lo:1,hs:128,vs:4,sync:3,vmode:0"
CONFIG_VIDEO_LCD_DCLK_PHASE=1


Monitor with vertical size bigger 768 px and 24bit deep need u-boot patch to add lvds dual channel support.

Downloadable LCD panel datasheets

Some of the LCD panel web shops are kind enough to conveniently provide freely downloadable collections of datasheets:

Retrieved from "https://linux-sunxi.org/index.php?title=LCD&oldid=23367"