diff options
Diffstat (limited to 'drivers/dma/imx-dma.c')
| -rw-r--r-- | drivers/dma/imx-dma.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index 75b6ff0415ee..c2fff3f6c9ca 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -162,6 +162,7 @@ struct imxdma_channel { bool enabled_2d; int slot_2d; unsigned int irq; + struct dma_slave_config config; }; enum imx_dma_type { @@ -675,14 +676,15 @@ static int imxdma_terminate_all(struct dma_chan *chan) return 0; } -static int imxdma_config(struct dma_chan *chan, - struct dma_slave_config *dmaengine_cfg) +static int imxdma_config_write(struct dma_chan *chan, + struct dma_slave_config *dmaengine_cfg, + enum dma_transfer_direction direction) { struct imxdma_channel *imxdmac = to_imxdma_chan(chan); struct imxdma_engine *imxdma = imxdmac->imxdma; unsigned int mode = 0; - if (dmaengine_cfg->direction == DMA_DEV_TO_MEM) { + if (direction == DMA_DEV_TO_MEM) { imxdmac->per_address = dmaengine_cfg->src_addr; imxdmac->watermark_level = dmaengine_cfg->src_maxburst; imxdmac->word_size = dmaengine_cfg->src_addr_width; @@ -723,6 +725,16 @@ static int imxdma_config(struct dma_chan *chan, return 0; } +static int imxdma_config(struct dma_chan *chan, + struct dma_slave_config *dmaengine_cfg) +{ + struct imxdma_channel *imxdmac = to_imxdma_chan(chan); + + memcpy(&imxdmac->config, dmaengine_cfg, sizeof(*dmaengine_cfg)); + + return 0; +} + static enum dma_status imxdma_tx_status(struct dma_chan *chan, dma_cookie_t cookie, struct dma_tx_state *txstate) @@ -905,6 +917,8 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic( desc->desc.callback = NULL; desc->desc.callback_param = NULL; + imxdma_config_write(chan, &imxdmac->config, direction); + return &desc->desc; } |