This is a note to let you know that I've just added the patch titled
dmaengine: Revert "dmaengine: pl330: issue_pending waits until WFP state"
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dmaengine-revert-dmaengine-pl330-issue_pending-waits.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit dc017414e48cc1eb6b60f51484bbcab461c7fa92
Author: Vinod Koul <vkoul@xxxxxxxxxx>
Date: Thu Mar 28 12:21:51 2024 +0530
dmaengine: Revert "dmaengine: pl330: issue_pending waits until WFP state"
[ Upstream commit afc89870ea677bd5a44516eb981f7a259b74280c ]
This reverts commit 22a9d9585812 ("dmaengine: pl330: issue_pending waits
until WFP state") as it seems to cause regression in pl330 driver.
Note the issue now exists in mainline so a fix to be done.
Cc: stable@xxxxxxxxxxxxxxx
Reported-by: karthikeyan <karthikeyan@xxxxxxxxxxx>
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index d12939c25a618..1d7d4b8d810a5 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -1051,9 +1051,6 @@ static bool _trigger(struct pl330_thread *thrd)
thrd->req_running = idx;
- if (desc->rqtype == DMA_MEM_TO_DEV || desc->rqtype == DMA_DEV_TO_MEM)
- UNTIL(thrd, PL330_STATE_WFP);
-
return true;
}
