[PATCH v3 3/9] media: intel: pxa_camera: 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/intel/pxa_camera.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/intel/pxa_camera.c b/drivers/media/platform/intel/pxa_camera.c
index 9e1fdd963b559..c9d57e4245181 100644
--- a/drivers/media/platform/intel/pxa_camera.c
+++ b/drivers/media/platform/intel/pxa_camera.c
@@ -832,16 +832,18 @@ static int pxa_init_dma_channel(struct pxa_camera_dev *pcdev,
 		goto fail;
 	}
 
-	tx->callback_param = pcdev;
 	switch (channel) {
 	case 0:
-		tx->callback = pxa_camera_dma_irq_y;
+		dmaengine_desc_set_callback(tx, pxa_camera_dma_irq_y, NULL,
+					    pcdev);
 		break;
 	case 1:
-		tx->callback = pxa_camera_dma_irq_u;
+		dmaengine_desc_set_callback(tx, pxa_camera_dma_irq_u, NULL,
+					    pcdev);
 		break;
 	case 2:
-		tx->callback = pxa_camera_dma_irq_v;
+		dmaengine_desc_set_callback(tx, pxa_camera_dma_irq_v, NULL,
+					    pcdev);
 		break;
 	}
 
-- 
2.43.0