diff options
Diffstat (limited to 'drivers/dma/dw/dw.c')
| -rw-r--r-- | drivers/dma/dw/dw.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/dma/dw/dw.c b/drivers/dma/dw/dw.c index 7a085b3c1854..a4862263ff14 100644 --- a/drivers/dma/dw/dw.c +++ b/drivers/dma/dw/dw.c @@ -14,7 +14,7 @@ static void dw_dma_initialize_chan(struct dw_dma_chan *dwc) { struct dw_dma *dw = to_dw_dma(dwc->chan.device); - u32 cfghi = DWC_CFGH_FIFO_MODE; + u32 cfghi = is_slave_direction(dwc->direction) ? 0 : DWC_CFGH_FIFO_MODE; u32 cfglo = DWC_CFGL_CH_PRIOR(dwc->priority); bool hs_polarity = dwc->dws.hs_polarity; @@ -67,9 +67,8 @@ static size_t dw_dma_block2bytes(struct dw_dma_chan *dwc, u32 block, u32 width) static u32 dw_dma_prepare_ctllo(struct dw_dma_chan *dwc) { struct dma_slave_config *sconfig = &dwc->dma_sconfig; - bool is_slave = is_slave_direction(dwc->direction); - u8 smsize = is_slave ? sconfig->src_maxburst : DW_DMA_MSIZE_16; - u8 dmsize = is_slave ? sconfig->dst_maxburst : DW_DMA_MSIZE_16; + u8 smsize = (dwc->direction == DMA_DEV_TO_MEM) ? sconfig->src_maxburst : 0; + u8 dmsize = (dwc->direction == DMA_MEM_TO_DEV) ? sconfig->dst_maxburst : 0; u8 p_master = dwc->dws.p_master; u8 m_master = dwc->dws.m_master; u8 dms = (dwc->direction == DMA_MEM_TO_DEV) ? p_master : m_master; |