[PATCH] ARM: S3C64XX: Clear DMA flags on channel request

From: Charles Keepax
Date: Fri Mar 08 2013 - 10:59:50 EST


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@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-s3c64xx/dma.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c
index 6af1aa1..759846c 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);

--
1.7.2.5

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