ASoC: mmp-pcm: config pcm slave via generic dmaengine
use snd_dmaengine_pcm_prepare_slave_config to set slave config,
and remove the max_burst_size = 4 hard code.
select SND_SOC_GENERIC_DMAENGINE_PCM for mmp-pcm.
Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c
index 7929e19..682ee52 100644
--- a/sound/soc/pxa/mmp-pcm.c
+++ b/sound/soc/pxa/mmp-pcm.c
@@ -67,27 +67,15 @@
struct snd_pcm_hw_params *params)
{
struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream);
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_dmaengine_dai_dma_data *dma_params;
struct dma_slave_config slave_config;
int ret;
- dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
- if (!dma_params)
- return 0;
-
- ret = snd_hwparams_to_dma_slave_config(substream, params, &slave_config);
+ ret =
+ snd_dmaengine_pcm_prepare_slave_config(substream, params,
+ &slave_config);
if (ret)
return ret;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- slave_config.dst_addr = dma_params->addr;
- slave_config.dst_maxburst = 4;
- } else {
- slave_config.src_addr = dma_params->addr;
- slave_config.src_maxburst = 4;
- }
-
ret = dmaengine_slave_config(chan, &slave_config);
if (ret)
return ret;