Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ba07d812 authored by Rongjun Ying's avatar Rongjun Ying Committed by Vinod Koul
Browse files

dmaengine: sirf: Add device_slave_caps interface 



this patch adds device_slave_caps() callback as SiRF SoC sound drivers
depend on it.

Signed-off-by: default avatarRongjun Ying <rongjun.ying@csr.com>
Signed-off-by: default avatarBarry Song <Barry.Song@csr.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 0ca583a2

drivers/dma/sirf-dma.c

+20 −0
Original line number Diff line number Diff line
@@ -640,6 +640,25 @@ bool sirfsoc_dma_filter_id(struct dma_chan *chan, void *chan_id) 
}

EXPORT_SYMBOL(sirfsoc_dma_filter_id);



#define SIRFSOC_DMA_BUSWIDTHS \

	(BIT(DMA_SLAVE_BUSWIDTH_UNDEFINED) | \

	BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | \

	BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | \

	BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) | \

	BIT(DMA_SLAVE_BUSWIDTH_8_BYTES))



static int sirfsoc_dma_device_slave_caps(struct dma_chan *dchan,

	struct dma_slave_caps *caps)

{

	caps->src_addr_widths = SIRFSOC_DMA_BUSWIDTHS;

	caps->dstn_addr_widths = SIRFSOC_DMA_BUSWIDTHS;

	caps->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);

	caps->cmd_pause = true;

	caps->cmd_terminate = true;



	return 0;

}



static int sirfsoc_dma_probe(struct platform_device *op)

{

	struct device_node *dn = op->dev.of_node;
@@ -712,6 +731,7 @@ static int sirfsoc_dma_probe(struct platform_device *op) 
	dma->device_tx_status = sirfsoc_dma_tx_status;

	dma->device_prep_interleaved_dma = sirfsoc_dma_prep_interleaved;

	dma->device_prep_dma_cyclic = sirfsoc_dma_prep_cyclic;

	dma->device_slave_caps = sirfsoc_dma_device_slave_caps;



	INIT_LIST_HEAD(&dma->channels);

	dma_cap_set(DMA_SLAVE, dma->cap_mask);