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Subject[PATCH] fbdev: bfin-t350mcqb-fb: handle all resources in suspend/resume
Date
From: Michael Hennerich <michael.hennerich@analog.com>

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>
---
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 5cc36cf..46cb07f 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;
}
--
1.6.4.2


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