Commit 990c0b53 authored by Baolin Wang's avatar Baolin Wang Committed by Vinod Koul
Browse files

dmaengine: imx-sdma: Let the core do the device node validation 



Let the DMA engine core do the device node validation instead of drivers.

Signed-off-by: default avatarBaolin Wang <baolin.wang@linaro.org>
Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 37c0afeb

drivers/dma/imx-sdma.c

+2 −7
Original line number Diff line number Diff line
@@ -1934,16 +1934,11 @@ static int sdma_init(struct sdma_engine *sdma) 
static bool sdma_filter_fn(struct dma_chan *chan, void *fn_param)

{

	struct sdma_channel *sdmac = to_sdma_chan(chan);

	struct sdma_engine *sdma = sdmac->sdma;

	struct imx_dma_data *data = fn_param;



	if (!imx_dma_is_general_purpose(chan))

		return false;



	/* return false if it's not the right device */

	if (sdma->dev->of_node != data->of_node)

		return false;



	sdmac->data = *data;

	chan->private = &sdmac->data;
@@ -1971,9 +1966,9 @@ static struct dma_chan *sdma_xlate(struct of_phandle_args *dma_spec, 
	 * be set to sdmac->event_id1.

	 */

	data.dma_request2 = 0;

	data.of_node = ofdma->of_node;



	return dma_request_channel(mask, sdma_filter_fn, &data);

	return __dma_request_channel(&mask, sdma_filter_fn, &data,

				     ofdma->of_node);

}



static int sdma_probe(struct platform_device *pdev)

include/linux/platform_data/dma-imx.h

+0 −1
Original line number Diff line number Diff line
@@ -55,7 +55,6 @@ struct imx_dma_data { 
	int dma_request2; /* secondary DMA request line */

	enum sdma_peripheral_type peripheral_type;

	int priority;

	struct device_node *of_node;

};



static inline int imx_dma_is_ipu(struct dma_chan *chan)