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Commit caf5e3e6 authored by Baolin Wang's avatar Baolin Wang Committed by Vinod Koul
Browse files

dmaengine: mxs-dma: 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 1d967195

drivers/dma/mxs-dma.c

+2 −6
Original line number Diff line number Diff line
@@ -716,7 +716,6 @@ static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma) 
}



struct mxs_dma_filter_param {

	struct device_node *of_node;

	unsigned int chan_id;

};
@@ -727,9 +726,6 @@ static bool mxs_dma_filter_fn(struct dma_chan *chan, void *fn_param) 
	struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma;

	int chan_irq;



	if (mxs_dma->dma_device.dev->of_node != param->of_node)

		return false;



	if (chan->chan_id != param->chan_id)

		return false;
@@ -752,13 +748,13 @@ static struct dma_chan *mxs_dma_xlate(struct of_phandle_args *dma_spec, 
	if (dma_spec->args_count != 1)

		return NULL;



	param.of_node = ofdma->of_node;

	param.chan_id = dma_spec->args[0];



	if (param.chan_id >= mxs_dma->nr_channels)

		return NULL;



	return dma_request_channel(mask, mxs_dma_filter_fn, &param);

	return __dma_request_channel(&mask, mxs_dma_filter_fn, &param,

				     ofdma->of_node);

}



static int __init mxs_dma_probe(struct platform_device *pdev)