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dmaengine: sh: rcar-dmac: Let the core do the device node validation
Let the DMA engine core do the device node validation instead of drivers. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
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1 changed files with 3 additions and 3 deletions
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@ -1654,8 +1654,7 @@ static bool rcar_dmac_chan_filter(struct dma_chan *chan, void *arg)
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* Forcing it to call dma_request_channel() and iterate through all
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* channels from all controllers is just pointless.
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*/
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if (chan->device->device_config != rcar_dmac_device_config ||
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dma_spec->np != chan->device->dev->of_node)
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if (chan->device->device_config != rcar_dmac_device_config)
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return false;
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return !test_and_set_bit(dma_spec->args[0], dmac->modules);
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@ -1675,7 +1674,8 @@ static struct dma_chan *rcar_dmac_of_xlate(struct of_phandle_args *dma_spec,
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dma_cap_zero(mask);
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dma_cap_set(DMA_SLAVE, mask);
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chan = dma_request_channel(mask, rcar_dmac_chan_filter, dma_spec);
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chan = __dma_request_channel(&mask, rcar_dmac_chan_filter, dma_spec,
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ofdma->of_node);
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if (!chan)
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return NULL;
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