diff options
Diffstat (limited to 'drivers/dma/at_hdmac.c')
| -rw-r--r-- | drivers/dma/at_hdmac.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index bf0d7e4e345b..7292aa87b2dd 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -39,7 +39,6 @@ */ #define ATC_DEFAULT_CFG (ATC_FIFOCFG_HALFFIFO) -#define ATC_DEFAULT_CTRLA (0) #define ATC_DEFAULT_CTRLB (ATC_SIF(AT_DMA_MEM_IF) \ |ATC_DIF(AT_DMA_MEM_IF)) @@ -574,7 +573,6 @@ atc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, return NULL; } - ctrla = ATC_DEFAULT_CTRLA; ctrlb = ATC_DEFAULT_CTRLB | ATC_IEN | ATC_SRC_ADDR_MODE_INCR | ATC_DST_ADDR_MODE_INCR @@ -585,13 +583,13 @@ atc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, * of the most common optimization. */ if (!((src | dest | len) & 3)) { - ctrla |= ATC_SRC_WIDTH_WORD | ATC_DST_WIDTH_WORD; + ctrla = ATC_SRC_WIDTH_WORD | ATC_DST_WIDTH_WORD; src_width = dst_width = 2; } else if (!((src | dest | len) & 1)) { - ctrla |= ATC_SRC_WIDTH_HALFWORD | ATC_DST_WIDTH_HALFWORD; + ctrla = ATC_SRC_WIDTH_HALFWORD | ATC_DST_WIDTH_HALFWORD; src_width = dst_width = 1; } else { - ctrla |= ATC_SRC_WIDTH_BYTE | ATC_DST_WIDTH_BYTE; + ctrla = ATC_SRC_WIDTH_BYTE | ATC_DST_WIDTH_BYTE; src_width = dst_width = 0; } @@ -668,7 +666,8 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, return NULL; } - ctrla = ATC_DEFAULT_CTRLA | atslave->ctrla; + ctrla = ATC_SCSIZE(sconfig->src_maxburst) + | ATC_DCSIZE(sconfig->dst_maxburst); ctrlb = ATC_IEN; switch (direction) { @@ -796,12 +795,12 @@ atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc, enum dma_transfer_direction direction) { struct at_dma_chan *atchan = to_at_dma_chan(chan); - struct at_dma_slave *atslave = chan->private; struct dma_slave_config *sconfig = &atchan->dma_sconfig; u32 ctrla; /* prepare common CRTLA value */ - ctrla = ATC_DEFAULT_CTRLA | atslave->ctrla + ctrla = ATC_SCSIZE(sconfig->src_maxburst) + | ATC_DCSIZE(sconfig->dst_maxburst) | ATC_DST_WIDTH(reg_width) | ATC_SRC_WIDTH(reg_width) | period_len >> reg_width; |