diff options
| author | Michael Hennerich <michael.hennerich@analog.com> | 2009-12-15 16:46:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 07:20:01 -0800 |
| commit | 6841bcfa6de5712a04531480fd1970ba462461f9 (patch) | |
| tree | e011910298c948519df492ad4f8003b1d5de9b42 /drivers/video/bfin-t350mcqb-fb.c | |
| parent | 9cfe4a93e50bb36392c8d74432e4607f297cdbfc (diff) | |
fbdev: bfin-t350mcqb-fb: handle all resources in suspend/resume
The LCD commands DMA/timers as well as PPI which we need to save/restore.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/bfin-t350mcqb-fb.c')
| -rw-r--r-- | drivers/video/bfin-t350mcqb-fb.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c index 5cc36cfbf07..46cb07f61b0 100644 --- a/drivers/video/bfin-t350mcqb-fb.c +++ b/drivers/video/bfin-t350mcqb-fb.c @@ -634,17 +634,35 @@ static int __devexit bfin_t350mcqb_remove(struct platform_device *pdev) #ifdef CONFIG_PM static int bfin_t350mcqb_suspend(struct platform_device *pdev, pm_message_t state) { - bfin_t350mcqb_disable_ppi(); - disable_dma(CH_PPI); - bfin_write_PPI_STATUS(0xFFFF); + struct fb_info *fbinfo = platform_get_drvdata(pdev); + struct bfin_t350mcqbfb_info *fbi = fbinfo->par; + + if (fbi->lq043_open_cnt) { + bfin_t350mcqb_disable_ppi(); + disable_dma(CH_PPI); + bfin_t350mcqb_stop_timers(); + bfin_write_PPI_STATUS(-1); + } + return 0; } static int bfin_t350mcqb_resume(struct platform_device *pdev) { - enable_dma(CH_PPI); - bfin_t350mcqb_enable_ppi(); + struct fb_info *fbinfo = platform_get_drvdata(pdev); + struct bfin_t350mcqbfb_info *fbi = fbinfo->par; + + if (fbi->lq043_open_cnt) { + bfin_t350mcqb_config_dma(fbi); + bfin_t350mcqb_config_ppi(fbi); + bfin_t350mcqb_init_timers(); + + /* start dma */ + enable_dma(CH_PPI); + bfin_t350mcqb_enable_ppi(); + bfin_t350mcqb_start_timers(); + } return 0; } |