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Commit fef4cbf2 authored by Ludovic Desroches's avatar Ludovic Desroches Committed by Vinod Koul
Browse files

dmaengine: at_xdmac: Add DMA_PRIVATE 



same issue as commit 7f5ae355:
"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 */
"

Signed-off-by: default avatarLudovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 466b3cf1

drivers/dma/at_xdmac.c

+5 −0
Original line number Diff line number Diff line
@@ -1394,6 +1394,11 @@ static int at_xdmac_probe(struct platform_device *pdev) 
	dma_cap_set(DMA_CYCLIC, atxdmac->dma.cap_mask);

	dma_cap_set(DMA_MEMCPY, atxdmac->dma.cap_mask);

	dma_cap_set(DMA_SLAVE, atxdmac->dma.cap_mask);

	/*

	 * Without DMA_PRIVATE the driver is not able to allocate more than

	 * one channel, second allocation fails in private_candidate.

	 */

	dma_cap_set(DMA_PRIVATE, atxdmac->dma.cap_mask);

	atxdmac->dma.dev				= &pdev->dev;

	atxdmac->dma.device_alloc_chan_resources	= at_xdmac_alloc_chan_resources;

	atxdmac->dma.device_free_chan_resources		= at_xdmac_free_chan_resources;