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Commit 73d2a3ce authored by Russell King's avatar Russell King Committed by Vinod Koul
Browse files

dmaengine: sa11x0: add DMA filters 



Add DMA filters for the sa11x0 DMA channels.  This will allow us to
migrate away from directly using the DMA filter function in drivers.

Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 2bd6bf03

drivers/dma/sa11x0-dma.c

+11 −0
Original line number Diff line number Diff line
@@ -823,6 +823,13 @@ static const struct sa11x0_dma_channel_desc chan_desc[] = { 
	CD(Ser4SSPRc, DDAR_RW),

};



static const struct dma_slave_map sa11x0_dma_map[] = {

	{ "sa11x0-ir", "tx", "Ser2ICPTr" },

	{ "sa11x0-ir", "rx", "Ser2ICPRc" },

	{ "sa11x0-ssp", "tx", "Ser4SSPTr" },

	{ "sa11x0-ssp", "rx", "Ser4SSPRc" },

};



static int sa11x0_dma_init_dmadev(struct dma_device *dmadev,

	struct device *dev)

{
@@ -909,6 +916,10 @@ static int sa11x0_dma_probe(struct platform_device *pdev) 
	spin_lock_init(&d->lock);

	INIT_LIST_HEAD(&d->chan_pending);



	d->slave.filter.fn = sa11x0_dma_filter_fn;

	d->slave.filter.mapcnt = ARRAY_SIZE(sa11x0_dma_map);

	d->slave.filter.map = sa11x0_dma_map;



	d->base = ioremap(res->start, resource_size(res));

	if (!d->base) {

		ret = -ENOMEM;