uboot显示logo的时候发现颜色偏黄【学习笔记】

平台信息:
内核：linux3.0.68
系统：android6.0
平台：rk3288

将一张图片烧录进logo分区，发现在uboot读取这张图片并显示的时候发现颜色偏黄，解决办法，在烧录bmp图片的时候调整logo的着色convert logo.bmp -recolor "0 0 1,0 1 0,1 0 0" logo-re.bmp.

不改变图片的着色调整代码也行补丁如下:

 1 diff --git a/drivers/video/rk32_lcdc.c b/drivers/video/rk32_lcdc.c
 2 index 1ab7a47..7b0ed62 100755
 3 --- a/drivers/video/rk32_lcdc.c
 4 +++ b/drivers/video/rk32_lcdc.c
 5 @@ -586,7 +586,7 @@ static int rk3288_win_0_1_reg_update(struct lcdc_device *lcdc_dev,
 6              v_WIN0_DATA_FMT(win->area[0].format) |
 7              v_WIN0_FMT_10(win->fmt_10) | 
 8              v_WIN0_LB_MODE(win->win_lb_mode) | 
 9 -            v_WIN0_RB_SWAP(0) |
10 +            v_WIN0_RB_SWAP(win->rb_swap) |
11              v_WIN0_UV_SWAP(0);
12          lcdc_msk_reg(lcdc_dev, WIN0_CTRL0+off, mask,val);    
13      
14 @@ -718,6 +718,7 @@ static int win0_set_par(struct lcdc_device *lcdc_dev,
15          win.area[0].y_vir_stride = v_ARGB888_VIRWIDTH(fb_info->xvir);
16          break;
17      case RGB888:
18 +        win.rb_swap = 1;
19          win.area[0].y_vir_stride = v_RGB888_VIRWIDTH(fb_info->xvir);
20          break;
21      case RGB565: