diff options
| author | Eric Long <eric.long@unisoc.com> | 2019-05-06 10:28:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-25 06:34:48 +0300 |
| commit | 3ef397924060d1431a1a2e4aa09964276da97d92 (patch) | |
| tree | 4b4cd8aaafd03a350cbe29b35a388fdfe788f0b6 /drivers/dma | |
| parent | 36090046e762aa70c118b501bdf2b3aa79c112d5 (diff) | |
| download | linux-3ef397924060d1431a1a2e4aa09964276da97d92.tar.xz | |
dmaengine: sprd: Fix the incorrect start for 2-stage destination channels
[ Upstream commit 3d626a97f0303e9c30d063434b749de3f0f91fb5 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/sprd-dma.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c index 431e289d59a5..0f92e60529d1 100644 --- a/drivers/dma/sprd-dma.c +++ b/drivers/dma/sprd-dma.c @@ -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); } |