[PATCH 09/33] dmaengine: at_hdmac: Start transfer for cyclic channels in issue_pending

Tudor Ambarus
2022-08-20T12:58:30Z

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: 53830cc75974 ("dmaengine: at_hdmac: add cyclic DMA operation support")
Reported-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/
---
drivers/dma/at_hdmac.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index b6b1d2dcfc4c..d9f492081e76 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -1972,10 +1972,6 @@ static void atc_issue_pending(struct dma_chan *chan)

dev_vdbg(chan2dev(chan), "issue_pending\n");

- /* Not needed for cyclic transfers */
- if (atc_chan_is_cyclic(atchan))
- return;
-
atc_advance_work(atchan);
}

--
2.25.1