struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- snd_pcm_hw_constraint_minmax(runtime,
- SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
+ snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2);
n810_ext_control(&rtd->card->dapm);
return clk_prepare_enable(sys_clkout2);