[PATCH 04/14] ASoC: Intel: avs: non-HDA PCM BE operations

[Pierre-Louis Bossart]

> +static int avs_dai_nonhda_be_trigger(struct snd_pcm_substream *substream, int cmd,
> +				     struct snd_soc_dai *dai)
> +{
> +	struct avs_dma_data *data;
> +	int ret = 0;
> +
> +	data = snd_soc_dai_get_dma_data(dai, substream);
> +
> +	switch (cmd) {
> +	case SNDRV_PCM_TRIGGER_START:
> +	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
> +		ret = avs_path_run(data->path, AVS_TPLG_TRIGGER_AUTO);
> +		if (ret < 0)
> +			dev_err(dai->dev, "run BE path failed: %d\n", ret);
> +		break;
> +
> +	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
> +	case SNDRV_PCM_TRIGGER_STOP:
> +		ret = avs_path_pause(data->path);
> +		if (ret < 0)
> +			dev_err(dai->dev, "pause BE path failed: %d\n", ret);
> +
> +		if (cmd == SNDRV_PCM_TRIGGER_STOP) {
> +			ret = avs_path_reset(data->path);
> +			if (ret < 0)
> +				dev_err(dai->dev, "reset BE path failed: %d\n", ret);
> +		}
> +		break;
> +
> +	default:
> +		ret = -EINVAL;
> +		break;

TRIGGER_SUSPEND will result in -EINVAL?

Have you tried suspend-resume while playing audio?

> +	}
> +
> +	return ret;
> +}