git.openwrt.org Git - openwrt/staging/ynezz.git/blob

   1 From 633531cdbaa3ed70a364db78fd7f8ae11da3e394 Mon Sep 17 00:00:00 2001
   2 From: Wang Huan <wanghuan@zch06.freescale.net>
   3 Date: Wed, 14 Sep 2011 17:40:41 +0800
   4 Subject: [PATCH] Fix LCD framebuffer driver data swap bug for MCF54418
   5
   6 This patch fixed LCD framebuffer driver data swap bug
   7 for MCF54418.
   8
   9 Signed-off-by: Alison Wang <b18965@freescale.com>
  10 ---
  11  drivers/video/fsl-ssd1289-fb.c |   13 ++++++++++---
  12  1 files changed, 10 insertions(+), 3 deletions(-)
  13
  14 --- a/drivers/video/fsl-ssd1289-fb.c
  15 +++ b/drivers/video/fsl-ssd1289-fb.c
  16 @@ -54,8 +54,10 @@ static int ssd1289_spi_writeblock(struct
  17         for (i = 0; i < SPI_LCD_BLOCK_SIZE; i++) {
  18                 if (i % 2 == 0)
  19                         spi_block_buffer[i] = 0x01;
  20 -               else if (flag == 1)
  21 -                       spi_block_buffer[i] = *(daddr + (i >> 1));
  22 +               else if ((flag == 1) && (i % 4 == 1))
  23 +                       spi_block_buffer[i] = *(daddr + (i >> 1) + 1);
  24 +               else if ((flag == 1) && (i % 4 == 3))
  25 +                       spi_block_buffer[i] = *(daddr + (i >> 1) - 1);
  26                 else if (flag == 0)
  27                         spi_block_buffer[i] = 0;
  28         }
  29 @@ -331,6 +333,9 @@ static int ssd1289fbd(void *arg)
  30         int i;
  31         unsigned short *buf_p;
  32         struct fsl_ssd1289_fb_info *fbinfo = info->par;
  33 +#if defined(CONFIG_SSD1289_FLEXBUS_MODE)
  34 +       unsigned short tmp;
  35 +#endif
  36  #if defined(CONFIG_SSD1289_SPI_MODE)
  37         unsigned char *bufspi_p;
  38         int count;
  39 @@ -344,7 +349,9 @@ static int ssd1289fbd(void *arg)
  40
  41  #if defined(CONFIG_SSD1289_FLEXBUS_MODE)
  42                         for (i = 0; i < info->screen_size; i += 2) {
  43 -                               ssd1289_write(info, *buf_p, 1);
  44 +                               tmp = ((((*buf_p) & 0x00ff) << 8) |
  45 +                                               (((*buf_p) & 0xff00) >> 8));
  46 +                               ssd1289_write(info, tmp, 1);
  47                                 buf_p++;
  48                         }
  49  #elif defined(CONFIG_SSD1289_SPI_MODE)