| 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) |
| 50 | |
