dmaengine: mmp_tdma: Reset channel error on release
[ Upstream commit 0c89446379
]
When a channel configuration fails, the status of the channel is set to
DEV_ERROR so that an attempt to submit it fails. However, this status
sticks until the heat end of the universe, making it impossible to
recover from the error.
Let's reset it when the channel is released so that further use of the
channel with correct configuration is not impacted.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200419164912.670973-5-lkundrak@v3.sk
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
parent
6c414ddee7
commit
2b313699e7
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@ -363,6 +363,8 @@ static void mmp_tdma_free_descriptor(struct mmp_tdma_chan *tdmac)
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gen_pool_free(gpool, (unsigned long)tdmac->desc_arr,
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size);
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tdmac->desc_arr = NULL;
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if (tdmac->status == DMA_ERROR)
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tdmac->status = DMA_COMPLETE;
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return;
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}
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