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>
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@ -634,17 +634,35 @@ static int __devexit bfin_t350mcqb_remove(struct platform_device *pdev)
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#ifdef CONFIG_PM
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static int bfin_t350mcqb_suspend(struct platform_device *pdev, pm_message_t state)
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{
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bfin_t350mcqb_disable_ppi();
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disable_dma(CH_PPI);
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bfin_write_PPI_STATUS(0xFFFF);
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struct fb_info *fbinfo = platform_get_drvdata(pdev);
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struct bfin_t350mcqbfb_info *fbi = fbinfo->par;
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if (fbi->lq043_open_cnt) {
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bfin_t350mcqb_disable_ppi();
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disable_dma(CH_PPI);
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bfin_t350mcqb_stop_timers();
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bfin_write_PPI_STATUS(-1);
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}
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return 0;
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}
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static int bfin_t350mcqb_resume(struct platform_device *pdev)
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{
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enable_dma(CH_PPI);
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bfin_t350mcqb_enable_ppi();
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struct fb_info *fbinfo = platform_get_drvdata(pdev);
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struct bfin_t350mcqbfb_info *fbi = fbinfo->par;
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if (fbi->lq043_open_cnt) {
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bfin_t350mcqb_config_dma(fbi);
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bfin_t350mcqb_config_ppi(fbi);
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bfin_t350mcqb_init_timers();
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/* start dma */
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enable_dma(CH_PPI);
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bfin_t350mcqb_enable_ppi();
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bfin_t350mcqb_start_timers();
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}
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return 0;
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}
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