dmaengine: at_hdmac: Start transfer for cyclic channels in issue_pending
authorTudor Ambarus <tudor.ambarus@microchip.com>
Tue, 25 Oct 2022 09:02:37 +0000 (12:02 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 16 Nov 2022 08:58:28 +0000 (09:58 +0100)
commitf7d1aaa903196144f0b1f8ad98b11b2df81cf38a
tree2e0f21183ed5e8163c39b3c48dcb392c61384663
parente9777b4efcce012f09e7ca8975b29124088f5304
dmaengine: at_hdmac: Start transfer for cyclic channels in issue_pending

commit 8a47221fc28417ff8a32a4f92d4448a56c3cf7e1 upstream.

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/
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-4-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/dma/at_hdmac.c