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>

diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c
index 3688d08..a884b85 100644 (file)
--- 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);