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dmaengine: fsl-edma: Fix return code for unhandled interrupts

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[ Upstream commit 5e27af0514e2249a9ccc9a762abd3b74e03a1f90 ]

For fsl,imx93-edma4 two DMA channels share the same interrupt.
So in case fsl_edma3_tx_handler is called for the "wrong"
channel, the return code must be IRQ_NONE. This signalize that
the interrupt wasn't handled.

Fixes: 72f5801a4e ("dmaengine: fsl-edma: integrate v3 support")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Joy Zou <joy.zou@nxp.com>
Link: https://lore.kernel.org/r/20250424114829.9055-1-wahrenst@gmx.net
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Stefan Wahren
2025-04-24 13:48:29 +02:00
committed by Greg Kroah-Hartman
parent 55f3c97fcb
commit 2b82d8e483
1 changed files with 1 additions and 1 deletions
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2
drivers/dma/fsl-edma-main.c
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@@ -58,7 +58,7 @@ static irqreturn_t fsl_edma3_tx_handler(int irq, void *dev_id)
intr = edma_readl_chreg(fsl_chan, ch_int);
if (!intr)
return IRQ_HANDLED;
return IRQ_NONE;
edma_writel_chreg(fsl_chan, 1, ch_int);