[PATCH v6 7/9] dmaengine: fsl-edma: use dmaengine_get_dma_device()

[Peng Fan (OSS)]

From: Peng Fan <peng.fan@xxxxxxx>

Use dmaengine_get_dma_device() instead of chan->device->dev when creating
the TCD pool and when mapping the slave resource. This lets the driver use
the per-channel device once per-channel IOMMU support enables it, without
changing behaviour for existing users.

Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---
 drivers/dma/fsl-edma-common.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
index 513b0f4e5be2..62cd60179bc6 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -310,10 +310,10 @@ int fsl_edma_resume(struct dma_chan *chan)
 
 static void fsl_edma_unprep_slave_dma(struct fsl_edma_chan *fsl_chan)
 {
+	struct device *dev = dmaengine_get_dma_device(&fsl_chan->vchan.chan);
+
 	if (fsl_chan->dma_dir != DMA_NONE)
-		dma_unmap_resource(fsl_chan->vchan.chan.device->dev,
-				   fsl_chan->dma_dev_addr,
-				   fsl_chan->dma_dev_size,
+		dma_unmap_resource(dev, fsl_chan->dma_dev_addr, fsl_chan->dma_dev_size,
 				   fsl_chan->dma_dir, 0);
 	fsl_chan->dma_dir = DMA_NONE;
 }
@@ -321,7 +321,7 @@ static void fsl_edma_unprep_slave_dma(struct fsl_edma_chan *fsl_chan)
 static bool fsl_edma_prep_slave_dma(struct fsl_edma_chan *fsl_chan,
 				    enum dma_transfer_direction dir)
 {
-	struct device *dev = fsl_chan->vchan.chan.device->dev;
+	struct device *dev = dmaengine_get_dma_device(&fsl_chan->vchan.chan);
 	enum dma_data_direction dma_dir;
 	phys_addr_t addr = 0;
 	u32 size = 0;
@@ -1090,7 +1090,7 @@ int fsl_edma_alloc_chan_resources(struct dma_chan *chan)
 	if (fsl_edma_drvflags(fsl_chan) & FSL_EDMA_DRV_HAS_CHCLK)
 		clk_prepare_enable(fsl_chan->clk);
 
-	fsl_chan->tcd_pool = dma_pool_create("tcd_pool", chan->device->dev,
+	fsl_chan->tcd_pool = dma_pool_create("tcd_pool", dmaengine_get_dma_device(chan),
 				fsl_edma_drvflags(fsl_chan) & FSL_EDMA_DRV_TCD64 ?
 				sizeof(struct fsl_edma_hw_tcd64) : sizeof(struct fsl_edma_hw_tcd),
 				32, 0);

-- 
2.34.1