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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2009-05-28 14:34:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-05-29 08:40:03 -0700 |
| commit | 17663e59704bea838a9236f299104e30909a43b1 (patch) | |
| tree | ab4b83f198e70645eabdb7f452f80834f345a463 /drivers | |
| parent | 8e8e8267f0a08c2415d5f51bc9a9fde6d5400619 (diff) | |
| download | linux-17663e59704bea838a9236f299104e30909a43b1.tar.gz linux-17663e59704bea838a9236f299104e30909a43b1.tar.bz2 linux-17663e59704bea838a9236f299104e30909a43b1.zip | |
S3C-fb: PM fix
Correctly restore the FrameBuffer register state in the resume function.
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.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/s3c-fb.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c index 5e9c6302433b..d3a568e6b169 100644 --- a/drivers/video/s3c-fb.c +++ b/drivers/video/s3c-fb.c @@ -947,7 +947,8 @@ static int __devexit s3c_fb_remove(struct platform_device *pdev) int win; for (win = 0; win <= S3C_FB_MAX_WIN; win++) - s3c_fb_release_win(sfb, sfb->windows[win]); + if (sfb->windows[win]) + s3c_fb_release_win(sfb, sfb->windows[win]); iounmap(sfb->regs); @@ -985,11 +986,20 @@ static int s3c_fb_suspend(struct platform_device *pdev, pm_message_t state) static int s3c_fb_resume(struct platform_device *pdev) { struct s3c_fb *sfb = platform_get_drvdata(pdev); + struct s3c_fb_platdata *pd = sfb->pdata; struct s3c_fb_win *win; int win_no; clk_enable(sfb->bus_clk); + /* setup registers */ + writel(pd->vidcon1, sfb->regs + VIDCON1); + + /* zero all windows before we do anything */ + for (win_no = 0; win_no < S3C_FB_MAX_WIN; win_no++) + s3c_fb_clear_win(sfb, win_no); + + /* restore framebuffers */ for (win_no = 0; win_no < S3C_FB_MAX_WIN; win_no++) { win = sfb->windows[win_no]; if (!win) |