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authorM'boumba Cedric Madianga <cedric.madianga@gmail.com>2016-12-13 16:40:43 +0300
committerVinod Koul <vinod.koul@intel.com>2017-01-02 06:58:52 +0300
commit7e96304d99477de1f70db42035071e56439da817 (patch)
treefd14471cf2eef73a182a0303bcc8cd5f2c0e7ec3 /drivers/dma/stm32-dma.c
parent1032471b3ec823bce7687034ac5af78a8ac99a9c (diff)
downloadlinux-7e96304d99477de1f70db42035071e56439da817.tar.xz
dmaengine: stm32-dma: Set correct args number for DMA request from DT
This patch sets the right number of arguments to be used for DMA clients which request channels from DT. Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com> Reviewed-by: Ludovic BARRE <ludovic.barre@st.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/stm32-dma.c')
-rw-r--r--drivers/dma/stm32-dma.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c
index 3688d0873a3e..a884b857cba4 100644
--- a/drivers/dma/stm32-dma.c
+++ b/drivers/dma/stm32-dma.c
@@ -972,21 +972,18 @@ static struct dma_chan *stm32_dma_of_xlate(struct of_phandle_args *dma_spec,
struct stm32_dma_chan *chan;
struct dma_chan *c;
- if (dma_spec->args_count < 3)
+ if (dma_spec->args_count < 4)
return NULL;
cfg.channel_id = dma_spec->args[0];
cfg.request_line = dma_spec->args[1];
cfg.stream_config = dma_spec->args[2];
- cfg.threshold = 0;
+ cfg.threshold = dma_spec->args[3];
if ((cfg.channel_id >= STM32_DMA_MAX_CHANNELS) || (cfg.request_line >=
STM32_DMA_MAX_REQUEST_ID))
return NULL;
- if (dma_spec->args_count > 3)
- cfg.threshold = dma_spec->args[3];
-
chan = &dmadev->chan[cfg.channel_id];
c = dma_get_slave_channel(&chan->vchan.chan);