We have already dedicated variable for flags, therefore no need to create an
additional storage for that. Convert dwc->paused to use dwc->flags.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/dma/dw/core.c | 12 +++++-------
drivers/dma/dw/regs.h | 2 +-
2 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 77df7ec..b481296 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -973,7 +973,7 @@ static int dwc_pause(struct dma_chan *chan)
while (!(channel_readl(dwc, CFG_LO) & DWC_CFGL_FIFO_EMPTY) && count--)
udelay(2);
- dwc->paused = true;
+ set_bit(DW_DMA_IS_PAUSED, &dwc->flags);
spin_unlock_irqrestore(&dwc->lock, flags);
@@ -986,7 +986,7 @@ static inline void dwc_chan_resume(struct dw_dma_chan *dwc)
channel_writel(dwc, CFG_LO, cfglo & ~DWC_CFGL_CH_SUSP);
- dwc->paused = false;
+ clear_bit(DW_DMA_IS_PAUSED, &dwc->flags);
}
static int dwc_resume(struct dma_chan *chan)
@@ -994,12 +994,10 @@ static int dwc_resume(struct dma_chan *chan)
struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
unsigned long flags;
- if (!dwc->paused)
- return 0;
-
spin_lock_irqsave(&dwc->lock, flags);
- dwc_chan_resume(dwc);
+ if (test_bit(DW_DMA_IS_PAUSED, &dwc->flags))
+ dwc_chan_resume(dwc);
spin_unlock_irqrestore(&dwc->lock, flags);
@@ -1068,7 +1066,7 @@ dwc_tx_status(struct dma_chan *chan,
if (ret != DMA_COMPLETE)
dma_set_residue(txstate, dwc_get_residue(dwc));
- if (dwc->paused && ret == DMA_IN_PROGRESS)
+ if (test_bit(DW_DMA_IS_PAUSED, &dwc->flags) && ret == DMA_IN_PROGRESS)
return DMA_PAUSED;
return ret;
diff --git a/drivers/dma/dw/regs.h b/drivers/dma/dw/regs.h
index 4424940..6355f6c 100644
--- a/drivers/dma/dw/regs.h
+++ b/drivers/dma/dw/regs.h
@@ -216,6 +216,7 @@ enum dw_dma_msize {
enum dw_dmac_flags {
DW_DMA_IS_CYCLIC = 0,
DW_DMA_IS_SOFT_LLP = 1,
+ DW_DMA_IS_PAUSED = 2,
};
struct dw_dma_chan {
@@ -224,7 +225,6 @@ struct dw_dma_chan {
u8 mask;
u8 priority;
enum dma_transfer_direction direction;
- bool paused;
bool initialized;
/* software emulation of the LLP transfers */
--
2.7.0
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