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authorTudor Ambarus <tudor.ambarus@microchip.com>2021-12-15 13:01:05 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-01-27 11:05:37 +0100
commitda1875fd4c255a7b3313b2f9cc3befd33cb84a3f (patch)
treee4bf77d1417b982cbea552835257acb18697b574 /drivers/dma
parent45e0d51850313f769436552a2ff65e613b70db1d (diff)
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dmaengine: at_xdmac: Start transfer for cyclic channels in issue_pending
commit e6af9b05bec63cd4d1de2a33968cd0be2a91282a 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: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver") Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Link: https://lore.kernel.org/r/20211215110115.191749-3-tudor.ambarus@microchip.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/at_xdmac.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 9a62029e7aa2..0c9a97e83331 100644
--- a/drivers/dma/at_xdmac.c
+++ b/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;
}