diff options
| author | Eric Long | 2019-05-06 09:28:30 +0200 |
|---|---|---|
| committer | Vinod Koul | 2019-05-21 15:53:54 +0200 |
| commit | 3d626a97f0303e9c30d063434b749de3f0f91fb5 (patch) | |
| tree | 274fac1846ee51d0f0910832b23e1f936ecf44da /drivers/dma | |
| parent | dmaengine: sprd: Add validation of current descriptor in irq handler (diff) | |
| download | kernel-qcow2-linux-3d626a97f0303e9c30d063434b749de3f0f91fb5.tar.gz kernel-qcow2-linux-3d626a97f0303e9c30d063434b749de3f0f91fb5.tar.xz kernel-qcow2-linux-3d626a97f0303e9c30d063434b749de3f0f91fb5.zip | |
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>
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); } |