From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Thu, 4 Apr 2013 05:37:57 +0000 (+0900)
Subject: ARM: S3C64XX: Clear DMA flags on channel request
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f6281dbe4a92fe7d6758853d8db5f53a67bc9709;p=linux-beck.git

ARM: S3C64XX: Clear DMA flags on channel request

This patch clears the DMA flags when a DMA channel is requested. This is
necessary because otherwise the channel may inherit incompatible
settings from its last usage.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---

diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c
index 6af1aa1ef213..759846c28d12 100644
--- a/arch/arm/mach-s3c64xx/dma.c
+++ b/arch/arm/mach-s3c64xx/dma.c
@@ -509,6 +509,7 @@ int s3c2410_dma_request(enum dma_ch channel,
 	chan->client = client;
 	chan->in_use = 1;
 	chan->peripheral = channel;
+	chan->flags = 0;
 
 	local_irq_restore(flags);