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>
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1 changed files with 2 additions and 2 deletions
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@ -482,8 +482,8 @@ int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
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device = chan->device;
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device = chan->device;
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/* check if the channel supports slave transactions */
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/* check if the channel supports slave transactions */
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if ((!test_bit(DMA_SLAVE, device->cap_mask.bits)) ||
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if (!(test_bit(DMA_SLAVE, device->cap_mask.bits) ||
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(!test_bit(DMA_CYCLIC, device->cap_mask.bits)))
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test_bit(DMA_CYCLIC, device->cap_mask.bits)))
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return -ENXIO;
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return -ENXIO;
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/*
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/*
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