mtd: use dmaengine_get_dma_device() instead of chan->device->dev

Replace direct dma_chan::device::dev access with the proper
dmaengine_get_dma_device() for consumer API.

chan->device->dev is not always the device used for DMA mapping.
Some DMA engines support per-channel IOMMU mappings, so different
channels may use different DMA devices.  dmaengine_get_dma_device()
returns the correct device for each channel.

This also prepares for making the DMA engine provider data structures
private. DMA consumers should not access DMA engine internals directly.

Assisted-by: LLM
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

0 files changed, 0 insertions, 0 deletions