Commit 3d626a97 authored May 06, 2019 by Eric Long Committed by Vinod Koul May 21, 2019

dmaengine: sprd: Fix the incorrect start for 2-stage destination channels



The 2-stage destination channel will be triggered by source channel
automatically, which means we should not trigger it by software request.

Signed-off-by: Eric Long <eric.long@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

parent 58152b0e

drivers/dma/sprd-dma.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -510,7 +510,9 @@ static void sprd_dma_start(struct sprd_dma_chn *schan)
		sprd_dma_set_uid(schan);
		sprd_dma_enable_chn(schan);

		if (schan->dev_id == SPRD_DMA_SOFTWARE_UID)
		if (schan->dev_id == SPRD_DMA_SOFTWARE_UID &&
		schan->chn_mode != SPRD_DMA_DST_CHN0 &&
		schan->chn_mode != SPRD_DMA_DST_CHN1)
		sprd_dma_soft_request(schan);
		}

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