[PATCH v3 4/9] media: m2m-deinterlace: use dmaengine_desc_set_callback()

[Frank . Li]

From: Frank Li <Frank.Li@xxxxxxx>

Replace open-coded assignments to callback and callback_param fields
of struct dma_async_tx_descriptor with calls to the
dmaengine_desc_set_callback() helper.

No functional change intended. Prepare to make struct
dma_async_tx_descriptor private to the DMA engine.

Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
change in v3
  split to simple patch
https://lore.kernel.org/imx/38f6a9abf37b06318bb6429ac04807941ca8d558.camel@xxxxxxxxxxxxx/
---
 drivers/media/platform/m2m-deinterlace.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/platform/m2m-deinterlace.c b/drivers/media/platform/m2m-deinterlace.c
index 6b07018614894..142b69eab47fe 100644
--- a/drivers/media/platform/m2m-deinterlace.c
+++ b/drivers/media/platform/m2m-deinterlace.c
@@ -336,8 +336,7 @@ static void deinterlace_issue_dma(struct deinterlace_ctx *ctx, int op,
 	}
 
 	if (do_callback) {
-		tx->callback = dma_callback;
-		tx->callback_param = ctx;
+		dmaengine_desc_set_callback(tx, dma_callback, NULL, ctx);
 	}
 
 	ctx->cookie = dmaengine_submit(tx);
-- 
2.43.0