[PATCH 1/1] powerpc/512x: 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 a call to the
dmaengine_desc_set_callback() helper.

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

Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
 arch/powerpc/platforms/512x/mpc512x_lpbfifo.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c b/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c
index f251e0f682620..0c1a4599e8aa3 100644
--- a/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c
+++ b/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c
@@ -260,8 +260,7 @@ static int mpc512x_lpbfifo_kick(void)
 		ret = -ENOSPC;
 		goto err_dma_prep;
 	}
-	dma_tx->callback = mpc512x_lpbfifo_callback;
-	dma_tx->callback_param = NULL;
+	dmaengine_desc_set_callback(dma_tx, mpc512x_lpbfifo_callback, NULL, NULL);
 
 	/* 3. Prepare FIFO */
 	out_be32(&lpbfifo.regs->enable,
-- 
2.43.0