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ASoC: dmaengine_pcm: Setup device_fc in snd_hwparams_to_dma_slave_config

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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@metafoo.de>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Lars-Peter Clausen 2013-04-03 11:02:56 +02:00 committed by Mark Brown
parent b1bd7f62cf
commit 5fa70f71db
3 changed files with 2 additions and 4 deletions
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2
sound/soc/atmel/atmel-pcm-dma.c
View File

@ -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");

2
sound/soc/fsl/imx-pcm-dma.c
View File

@ -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;

2
sound/soc/soc-dmaengine-pcm.c
View File

@ -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);