diff options
| -rw-r--r-- | drivers/dma/dw_dmac.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index a2c5a60..e5378b5 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -50,11 +50,12 @@ static inline unsigned int dwc_get_sms(struct dw_dma_slave *slave) struct dw_dma_slave *__slave = (_chan->private); \ struct dw_dma_chan *_dwc = to_dw_dma_chan(_chan); \ struct dma_slave_config *_sconfig = &_dwc->dma_sconfig; \ + bool _is_slave = is_slave_direction(_dwc->direction); \ int _dms = dwc_get_dms(__slave); \ int _sms = dwc_get_sms(__slave); \ - u8 _smsize = __slave ? _sconfig->src_maxburst : \ + u8 _smsize = _is_slave ? _sconfig->src_maxburst : \ DW_DMA_MSIZE_16; \ - u8 _dmsize = __slave ? _sconfig->dst_maxburst : \ + u8 _dmsize = _is_slave ? _sconfig->dst_maxburst : \ DW_DMA_MSIZE_16; \ \ (DWC_CTLL_DST_MSIZE(_dmsize) \ @@ -328,7 +329,7 @@ dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc, list_splice_init(&desc->tx_list, &dwc->free_list); list_move(&desc->desc_node, &dwc->free_list); - if (!dwc->chan.private) { + if (!is_slave_direction(dwc->direction)) { struct device *parent = chan2parent(&dwc->chan); if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) { if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE) @@ -804,7 +805,7 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, dev_vdbg(chan2dev(chan), "%s\n", __func__); - if (unlikely(!dws || !sg_len)) + if (unlikely(!is_slave_direction(direction) || !sg_len)) return NULL; dwc->direction = direction; @@ -980,8 +981,8 @@ set_runtime_config(struct dma_chan *chan, struct dma_slave_config *sconfig) { struct dw_dma_chan *dwc = to_dw_dma_chan(chan); - /* Check if it is chan is configured for slave transfers */ - if (!chan->private) + /* Check if chan will be configured for slave transfers */ + if (!is_slave_direction(sconfig->direction)) return -EINVAL; memcpy(&dwc->dma_sconfig, sconfig, sizeof(*sconfig)); |