linux-kernel - Re: [PATCH 1/2] dma/imx-sdma: call sdma_set_channel_priority after sdma_request

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Date:	Tue, 10 Jan 2012 11:02:25 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Richard Zhao <richard.zhao@...aro.org>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	dan.j.williams@...el.com, vinod.koul@...el.com,
	kernel@...gutronix.de, eric.miao@...aro.org, patches@...aro.org
Subject: Re: [PATCH 1/2] dma/imx-sdma: call sdma_set_channel_priority after
 sdma_request_channel

On Mon, Jan 09, 2012 at 04:48:59PM +0800, Richard Zhao wrote:
> sdma_request_channel sets the default priority. sdma_alloc_chan_resources
> should call sdma_set_channel_priority thereafter to over write it.
> 
> Signed-off-by: Richard Zhao <richard.zhao@...aro.org>

Acked-by: Shawn Guo <shawn.guo@...aro.org>

Regards,
Shawn

> ---
>  drivers/dma/imx-sdma.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
> index 2cc96c4..6376009 100644
> --- a/drivers/dma/imx-sdma.c
> +++ b/drivers/dma/imx-sdma.c
> @@ -875,11 +875,11 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan)
>  
>  	sdmac->peripheral_type = data->peripheral_type;
>  	sdmac->event_id0 = data->dma_request;
> -	ret = sdma_set_channel_priority(sdmac, prio);
> +	ret = sdma_request_channel(sdmac);
>  	if (ret)
>  		return ret;
>  
> -	ret = sdma_request_channel(sdmac);
> +	ret = sdma_set_channel_priority(sdmac, prio);
>  	if (ret)
>  		return ret;
>  
> -- 
> 1.7.5.4
> 
> 
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