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 6af1aa1ef213293267063c4a20afa07b1a486b4b..759846c28d1296990bea0f1817ae782f46e042af 100644 (file)
--- 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);