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fbdev: bfin-t350mcqb-fb: handle all resources in suspend/resume

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The LCD commands DMA/timers as well as PPI which we need to save/restore.

Signed-off-by: Michael Hennerich <[email protected]>
Signed-off-by: Mike Frysinger <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Michael Hennerich 2009-12-15 16:46:21 -08:00 • committed by Linus Torvalds
commit 6841bcfa6d
1 changed files with 23 additions and 5 deletions
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28
drivers/video/bfin-t350mcqb-fb.c
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@ -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;
}