diff options
Diffstat (limited to 'drivers/dma/dw_dmac.c')
| -rw-r--r-- | drivers/dma/dw_dmac.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 9ca9ca41b83e..c4b0eb3cde81 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -716,6 +716,7 @@ dwc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, size_t offset; unsigned int src_width; unsigned int dst_width; + unsigned int data_width; u32 ctllo; dev_vdbg(chan2dev(chan), @@ -728,11 +729,11 @@ dwc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, return NULL; } - src_width = min_t(unsigned int, dwc->dw->data_width[dwc_get_sms(dws)], - dwc_fast_fls(src | len)); + data_width = min_t(unsigned int, dwc->dw->data_width[dwc_get_sms(dws)], + dwc->dw->data_width[dwc_get_dms(dws)]); - dst_width = min_t(unsigned int, dwc->dw->data_width[dwc_get_dms(dws)], - dwc_fast_fls(dest | len)); + src_width = dst_width = min_t(unsigned int, data_width, + dwc_fast_fls(src | dest | len)); ctllo = DWC_DEFAULT_CTLLO(chan) | DWC_CTLL_DST_WIDTH(dst_width) |