ASoC: dmaengine_pcm: Setup device_fc in snd_hwparams_to_dma_slave_config

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>

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");

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;

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);