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core: dma: Add channel size to DMA platform data 

Some DMACs have an array of register elements to config and control
DMA channels. Provide a mapping here so that FW can easily calculate
the correct channel offset.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
This commit is contained in:
Liam Girdwood 2018-02-08 20:34:33 +08:00
parent fa8abe145c
commit 9a8a9ab82b
1 changed files with 5 additions and 0 deletions
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5
src/include/reef/dma.h
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@ -119,6 +119,7 @@ struct dma_plat_data {
uint32_t base;
uint32_t channels;
uint32_t irq;
uint32_t chan_size;
void *drv_plat_data;
};
@ -145,6 +146,10 @@ struct dma *dma_get(int dmac_id);
dma->plat_data.base
#define dma_irq(dma) \
dma->plat_data.irq
#define dma_chan_size(dma) \
dma->plat_data.chan_size
#define dma_chan_base(dma, chan) \
(dma->plat_data.base + chan * dma->plat_data.chan_size)
/* DMA API
* Programming flow is :-