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Commit dd4e91d5 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Vinod Koul
Browse files

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: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarVinod 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;



	/*