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Commit 0fa5867e authored by Martin Sperl's avatar Martin Sperl Committed by Vinod Koul
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dmaengine: bcm2835: set residue_granularity field 

bcm2835-dma supports residue reporting at burst level but didn't report
this via the residue_granularity field.

See also:
https://github.com/raspberrypi/linux/commit/b015555327afa402f70ddc86e3632f59df1cd9d7


for the downstream patch.

Signed-off-by: default avatarMatthias Reichl <hias@horus.com>
Signed-off-by: default avatarNoralf Trønnes <noralf@tronnes.org>
Signed-off-by: default avatarMartin Sperl <kernel@martin.sperl.org>
Reviewed-by: default avatarEric Anholt <eric@anholt.net>
Signed-off-by: default avatarEric Anholt <eric@anholt.net>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent f55532a0

drivers/dma/bcm2835-dma.c

+1 −0
Original line number Diff line number Diff line
@@ -625,6 +625,7 @@ static int bcm2835_dma_probe(struct platform_device *pdev) 
	od->ddev.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);

	od->ddev.dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);

	od->ddev.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);

	od->ddev.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;

	od->ddev.dev = &pdev->dev;

	INIT_LIST_HEAD(&od->ddev.channels);

	spin_lock_init(&od->lock);