mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 14:37:57 +00:00
b3dc9566a4
As usual these patches were extracted from: https://github.com/raspberrypi/linux/commits/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> SVN-Revision: 48765
30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
From b6906312ccc7e18a0d8608c1d1bc318ab6f84656 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
|
|
Date: Sat, 3 Oct 2015 15:58:59 +0200
|
|
Subject: [PATCH 021/156] 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 <noralf@tronnes.org>
|
|
---
|
|
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);
|