Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7e96304d authored by M'boumba Cedric Madianga's avatar M'boumba Cedric Madianga Committed by Vinod Koul
Browse files

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: default avatarM'boumba Cedric Madianga <cedric.madianga@gmail.com>
Reviewed-by: default avatarLudovic BARRE <ludovic.barre@st.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 1032471b

drivers/dma/stm32-dma.c

+2 −5
Original line number Diff line number Diff line
@@ -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);