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dmaengine: Add DMA_PRIVATE to BCM2835 driver

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Without DMA_PRIVATE the driver is not able to allocate more than one channel.
Since it uses dma_get_any_slave_channel that calls private_candidate,
the second allocation fails at
/* some channels are already publicly allocated */
Maybe it should be fixed in the core, but at least this fixes the bug.

Signed-off-by: Florian Meier <florian.meier@koalo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Florian Meier 2014-01-17 18:06:29 +01:00 committed by Vinod Koul
parent 70dabaede8
commit 7f5ae35536
1 changed files with 1 additions and 0 deletions
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1
drivers/dma/bcm2835-dma.c
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@ -611,6 +611,7 @@ static int bcm2835_dma_probe(struct platform_device *pdev)
od->base = base; od->base = base;
dma_cap_set(DMA_SLAVE, od->ddev.cap_mask); dma_cap_set(DMA_SLAVE, od->ddev.cap_mask);
dma_cap_set(DMA_PRIVATE, od->ddev.cap_mask);
dma_cap_set(DMA_CYCLIC, od->ddev.cap_mask); dma_cap_set(DMA_CYCLIC, od->ddev.cap_mask);
od->ddev.device_alloc_chan_resources = bcm2835_dma_alloc_chan_resources; od->ddev.device_alloc_chan_resources = bcm2835_dma_alloc_chan_resources;
od->ddev.device_free_chan_resources = bcm2835_dma_free_chan_resources; od->ddev.device_free_chan_resources = bcm2835_dma_free_chan_resources;