From 290f55520c62025da992d6be0002fc1e3738cfdb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Sat, 3 Oct 2015 15:58:59 +0200 Subject: [PATCH 021/232] dmaengine: bcm2835: set residue_granularity field MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit bcm2835-dma 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. [by HiassofT, taken from bcm2708-dmaengine] Signed-off-by: Noralf Trønnes --- drivers/dma/bcm2835-dma.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/dma/bcm2835-dma.c +++ b/drivers/dma/bcm2835-dma.c @@ -802,6 +802,7 @@ static int bcm2835_dma_probe(struct plat 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);