dmaengine: at_xdmac: Start transfer for cyclic channels in issue_pending

Cyclic channels must too call issue_pending in order to start a transfer.
Start the transfer in issue_pending regardless of the type of channel.
This wrongly worked before, because in the past the transfer was started
at tx_submit level when only a desc in the transfer list.

Fixes: e1f7c9e ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

Author: ambarus

drivers/dma/at_xdmac.c

@@ -1778,11 +1778,9 @@ static void at_xdmac_issue_pending(struct dma_chan *chan)
 
 	dev_dbg(chan2dev(&atchan->chan), "%s\n", __func__);
 
-	if (!at_xdmac_chan_is_cyclic(atchan)) {
-		spin_lock_irqsave(&atchan->lock, flags);
-		at_xdmac_advance_work(atchan);
-		spin_unlock_irqrestore(&atchan->lock, flags);
-	}
+	spin_lock_irqsave(&atchan->lock, flags);
+	at_xdmac_advance_work(atchan);
+	spin_unlock_irqrestore(&atchan->lock, flags);
 
 	return;
 }