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 6.8-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-until-wfp-state.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From afc89870ea677bd5a44516eb981f7a259b74280c Mon Sep 17 00:00:00 2001
From: Vinod Koul <vkoul@xxxxxxxxxx>
Date: Thu, 28 Mar 2024 12:21:51 +0530
Subject: dmaengine: Revert "dmaengine: pl330: issue_pending waits until WFP state"
From: Vinod Koul <vkoul@xxxxxxxxxx>
commit afc89870ea677bd5a44516eb981f7a259b74280c upstream.
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: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/dma/pl330.c | 3 ---
1 file changed, 3 deletions(-)
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -1053,9 +1053,6 @@ static bool _trigger(struct pl330_thread
thrd->req_running = idx;
- if (desc->rqtype == DMA_MEM_TO_DEV || desc->rqtype == DMA_DEV_TO_MEM)
- UNTIL(thrd, PL330_STATE_WFP);
-
return true;
}
Patches currently in stable-queue which might be from vkoul@xxxxxxxxxx are
queue-6.8/dmaengine-xilinx-xdma-fix-synchronization-issue.patch
queue-6.8/dmaengine-xilinx-xdma-fix-wrong-offsets-in-the-buffers-addresses-in-dma-descriptor.patch
queue-6.8/dmaengine-revert-dmaengine-pl330-issue_pending-waits-until-wfp-state.patch
