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dmaengine: bcm2708: set residue_granularity field

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bcm2708-dmaengine supports residue reporting at burst level
but didn't report this via the residue_granularity field.

Without this field set properly we get playback issues with I2S cards.
This commit is contained in:
Matthias Reichl
2015-05-15 14:21:32 +02:00
committed by popcornmix
parent 44fa0c9f4f
commit c4091326f0
1 changed files with 2 additions and 0 deletions
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2
drivers/dma/bcm2708-dmaengine.c
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@@ -1112,6 +1112,7 @@ static int bcm2835_dma_probe(struct platform_device *pdev)
od->ddev.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES); od->ddev.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
od->ddev.dst_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.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
od->ddev.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
od->ddev.dev = &pdev->dev; od->ddev.dev = &pdev->dev;
INIT_LIST_HEAD(&od->ddev.channels); INIT_LIST_HEAD(&od->ddev.channels);
spin_lock_init(&od->lock); spin_lock_init(&od->lock);
@@ -1180,6 +1181,7 @@ static int bcm2835_dma_probe(struct platform_device *pdev)
od->ddev.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES); od->ddev.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
od->ddev.dst_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.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
od->ddev.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
od->ddev.dev = &pdev->dev; od->ddev.dev = &pdev->dev;
INIT_LIST_HEAD(&od->ddev.channels); INIT_LIST_HEAD(&od->ddev.channels);
spin_lock_init(&od->lock); spin_lock_init(&od->lock);