Commit dd4e91d5 authored May 10, 2016 by Andy Shevchenko Committed by Vinod Koul May 12, 2016

dmaengine: slave means at least one of DMA_SLAVE, DMA_CYCLIC

When check for capabilities recognize slave support by either DMA_SLAVE or
DMA_CYCLIC bit set. If we don't do that the user can't get a normally worked
DMA support for engines that doesn't have one of the mentioned bits set.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent 757d12e5

drivers/dma/dmaengine.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -482,8 +482,8 @@ int dma_get_slave_caps(struct dma_chan chan, struct dma_slave_caps caps)
		device = chan->device;

		/* check if the channel supports slave transactions */
		if ((!test_bit(DMA_SLAVE, device->cap_mask.bits)) \|\|
		(!test_bit(DMA_CYCLIC, device->cap_mask.bits)))
		if (!(test_bit(DMA_SLAVE, device->cap_mask.bits) \|\|
		test_bit(DMA_CYCLIC, device->cap_mask.bits)))
		return -ENXIO;

		/*

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