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Commit 6841bcfa authored by Michael Hennerich's avatar Michael Hennerich Committed by Linus Torvalds
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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: default avatarMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 9cfe4a93

drivers/video/bfin-t350mcqb-fb.c

+23 −5
Original line number Diff line number Diff line
@@ -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)

{

	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_write_PPI_STATUS(0xFFFF);

		bfin_t350mcqb_stop_timers();

		bfin_write_PPI_STATUS(-1);

	}





	return 0;

}



static int bfin_t350mcqb_resume(struct platform_device *pdev)

{

	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;

}