diff mbox

[1/2] ARM: S3C64XX: Clear DMA flags on channel request

Message ID 1364469746-5026-1-git-send-email-broonie@opensource.wolfsonmicro.com (mailing list archive)
State New, archived
Headers show

Commit Message

Mark Brown March 28, 2013, 11:22 a.m. UTC 
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>

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>
---
 arch/arm/mach-s3c64xx/dma.c |    1 +
 1 file changed, 1 insertion(+)

Comments

Kim Kukjin April 2, 2013, 9:39 a.m. UTC | #1 
Mark Brown wrote:
> 
> From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
> 
> 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>
> ---
>  arch/arm/mach-s3c64xx/dma.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> 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);
> 
> --
> 1.7.10.4

Applied, thanks.

- Kukjin
diff mbox

Patch

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);