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authorMichael Hennerich <michael.hennerich@analog.com>2009-12-16 03:46:21 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 18:20:01 +0300
commit6841bcfa6de5712a04531480fd1970ba462461f9 (patch)
treee011910298c948519df492ad4f8003b1d5de9b42 /drivers
parent9cfe4a93e50bb36392c8d74432e4607f297cdbfc (diff)
downloadlinux-6841bcfa6de5712a04531480fd1970ba462461f9.tar.xz
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')
-rw-r--r--drivers/video/bfin-t350mcqb-fb.c28
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index 5cc36cfbf07b..46cb07f61b0f 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;
}