[alsa-devel] [PATCH 4/8] ASoC: dmaengine_pcm: Setup device_fc in snd_hwparams_to_dma_slave_config

[Peter Ujfalusi]

On 04/03/2013 11:02 AM, Lars-Peter Clausen wrote:
> Usually device_fc should be set to false for audio DMAs. Initialize it in a
> common place so drivers don't have to do this manually.
> 
> Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>

Tested-by: Peter Ujfalusi <peter.ujfalusi at ti.com>

> ---
>  sound/soc/atmel/atmel-pcm-dma.c | 2 --
>  sound/soc/fsl/imx-pcm-dma.c     | 2 --
>  sound/soc/soc-dmaengine-pcm.c   | 2 ++
>  3 files changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/sound/soc/atmel/atmel-pcm-dma.c b/sound/soc/atmel/atmel-pcm-dma.c
> index b8570e3..bb07989 100644
> --- a/sound/soc/atmel/atmel-pcm-dma.c
> +++ b/sound/soc/atmel/atmel-pcm-dma.c
> @@ -129,8 +129,6 @@ static int atmel_pcm_configure_dma(struct snd_pcm_substream *substream,
>  		slave_config.src_maxburst = 1;
>  	}
>  
> -	slave_config.device_fc = false;
> -
>  	dma_chan = snd_dmaengine_pcm_get_chan(substream);
>  	if (dmaengine_slave_config(dma_chan, &slave_config)) {
>  		pr_err("atmel-pcm: failed to configure dma channel\n");
> diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c
> index 6832c49..64af573 100644
> --- a/sound/soc/fsl/imx-pcm-dma.c
> +++ b/sound/soc/fsl/imx-pcm-dma.c
> @@ -57,8 +57,6 @@ static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream,
>  	if (ret)
>  		return ret;
>  
> -	slave_config.device_fc = false;
> -
>  	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
>  		slave_config.dst_addr = dma_params->dma_addr;
>  		slave_config.dst_maxburst = dma_params->burstsize;
> diff --git a/sound/soc/soc-dmaengine-pcm.c b/sound/soc/soc-dmaengine-pcm.c
> index e8b1215..7c24ded 100644
> --- a/sound/soc/soc-dmaengine-pcm.c
> +++ b/sound/soc/soc-dmaengine-pcm.c
> @@ -89,6 +89,8 @@ int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream,
>  		slave_config->src_addr_width = buswidth;
>  	}
>  
> +	slave_config->device_fc = false;
> +
>  	return 0;
>  }
>  EXPORT_SYMBOL_GPL(snd_hwparams_to_dma_slave_config);
> 


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