Patch "dmaengine: dw-edma: Fix to enable to issue dma request on DMA processing" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    dmaengine: dw-edma: Fix to enable to issue dma request on DMA processing

to the 5.15-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-dw-edma-fix-to-enable-to-issue-dma-request.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit efd7228bdd0203bc9db7824e1af602527f3e64a7
Author: Shunsuke Mie <mie@xxxxxxxxxx>
Date:   Tue Apr 11 19:17:58 2023 +0900

    dmaengine: dw-edma: Fix to enable to issue dma request on DMA processing
    
    [ Upstream commit 970b17dfe264a9085ba4e593730ecfd496b950ab ]
    
    The issue_pending request is ignored while driver is processing a DMA
    request. Fix to issue the pending requests on any dma channel status.
    
    Fixes: e63d79d1ffcd ("dmaengine: Add Synopsys eDMA IP core driver")
    Signed-off-by: Shunsuke Mie <mie@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230411101758.438472-2-mie@xxxxxxxxxx
    Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c
index 2a434c255b4a2..799ebbaf35be5 100644
--- a/drivers/dma/dw-edma/dw-edma-core.c
+++ b/drivers/dma/dw-edma/dw-edma-core.c
@@ -281,9 +281,12 @@ static void dw_edma_device_issue_pending(struct dma_chan *dchan)
 	struct dw_edma_chan *chan = dchan2dw_edma_chan(dchan);
 	unsigned long flags;
 
+	if (!chan->configured)
+		return;
+
 	spin_lock_irqsave(&chan->vc.lock, flags);
-	if (chan->configured && chan->request == EDMA_REQ_NONE &&
-	    chan->status == EDMA_ST_IDLE && vchan_issue_pending(&chan->vc)) {
+	if (vchan_issue_pending(&chan->vc) && chan->request == EDMA_REQ_NONE &&
+	    chan->status == EDMA_ST_IDLE) {
 		chan->status = EDMA_ST_BUSY;
 		dw_edma_start_transfer(chan);
 	}



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