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| author |   Hongbo Zhang <hongbo.zhang@freescale.com> | 2014-05-21 16:03:02 +0800 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2014-07-14 21:32:18 +0530 |
| commit | 14c6a3333c8e885604fc98768d8b9a32e08110ac (patch) | |
| tree | 5dae60ced4af6ade4439b656730d05e09c8ae393 /drivers/dma/fsldma.h | |
| parent | dmaengine: Freescale: use spin_lock_bh instead of spin_lock_irqsave (diff) | |
| download | linux-dev-14c6a3333c8e885604fc98768d8b9a32e08110ac.tar.xz linux-dev-14c6a3333c8e885604fc98768d8b9a32e08110ac.zip | |
dmaengine: Freescale: add suspend resume functions for DMA driver
This patch adds suspend and resume functions for Freescale DMA driver.
Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/fsldma.h')
| -rw-r--r-- | drivers/dma/fsldma.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h index d56e83599825..f2e0c4dcf901 100644 --- a/drivers/dma/fsldma.h +++ b/drivers/dma/fsldma.h @@ -134,6 +134,17 @@ struct fsldma_device { #define FSL_DMA_CHAN_PAUSE_EXT 0x00001000 #define FSL_DMA_CHAN_START_EXT 0x00002000 +#ifdef CONFIG_PM +struct fsldma_chan_regs_save { + u32 mr; +}; + +enum fsldma_pm_state { + RUNNING = 0, + SUSPENDED, +}; +#endif + struct fsldma_chan { char name[8]; /* Channel name */ struct fsldma_chan_regs __iomem *regs; @@ -148,6 +159,10 @@ struct fsldma_chan { struct tasklet_struct tasklet; u32 feature; bool idle; /* DMA controller is idle */ +#ifdef CONFIG_PM + struct fsldma_chan_regs_save regs_save; + enum fsldma_pm_state pm_state; +#endif void (*toggle_ext_pause)(struct fsldma_chan *fsl_chan, int enable); void (*toggle_ext_start)(struct fsldma_chan *fsl_chan, int enable); |