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dmaengine: dw: move dwc->initialized to dwc->flags

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We have already dedicated variable for flags, therefore no need to create an
additional storage for that. Covert dwc->initialized to use dwc->flags.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Andy Shevchenko 2016-03-18 16:24:52 +02:00 committed by Vinod Koul
parent 5e09f98e77
commit 423f9cbf2d
2 changed files with 5 additions and 5 deletions
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8
drivers/dma/dw/core.c
View File

@ -137,7 +137,7 @@ static void dwc_initialize(struct dw_dma_chan *dwc)
u32 cfghi = DWC_CFGH_FIFO_MODE;
u32 cfglo = DWC_CFGL_CH_PRIOR(dwc->priority);
if (dwc->initialized == true)
if (test_bit(DW_DMA_IS_INITIALIZED, &dwc->flags))
return;
cfghi |= DWC_CFGH_DST_PER(dwc->dst_id);
@ -150,7 +150,7 @@ static void dwc_initialize(struct dw_dma_chan *dwc)
channel_set_bit(dw, MASK.XFER, dwc->mask);
channel_set_bit(dw, MASK.ERROR, dwc->mask);
dwc->initialized = true;
set_bit(DW_DMA_IS_INITIALIZED, &dwc->flags);
}
/*----------------------------------------------------------------------*/
@ -1127,7 +1127,7 @@ static void dw_dma_off(struct dw_dma *dw)
cpu_relax();
for (i = 0; i < dw->dma.chancnt; i++)
dw->chan[i].initialized = false;
clear_bit(DW_DMA_IS_INITIALIZED, &dw->chan[i].flags);
}
static void dw_dma_on(struct dw_dma *dw)
@ -1236,7 +1236,7 @@ static void dwc_free_chan_resources(struct dma_chan *chan)
dwc->m_master = 0;
dwc->p_master = 0;
dwc->initialized = false;
clear_bit(DW_DMA_IS_INITIALIZED, &dwc->flags);
/* Disable interrupts */
channel_clear_bit(dw, MASK.XFER, dwc->mask);

2
drivers/dma/dw/regs.h
View File

@ -217,6 +217,7 @@ enum dw_dmac_flags {
DW_DMA_IS_CYCLIC = 0,
DW_DMA_IS_SOFT_LLP = 1,
DW_DMA_IS_PAUSED = 2,
DW_DMA_IS_INITIALIZED = 3,
};
struct dw_dma_chan {
@ -225,7 +226,6 @@ struct dw_dma_chan {
u8 mask;
u8 priority;
enum dma_transfer_direction direction;
bool initialized;
/* software emulation of the LLP transfers */
struct list_head *tx_node_active;