From 74e651926ee038237c48493d0a0853868d622b01 Mon Sep 17 00:00:00 2001 From: Pardha Saradhi K Date: Mon, 2 Apr 2018 12:15:48 +0530 Subject: ASoC: Intel: Skylake: Reset DSP Pipelines in prepare An application can choose to call .prepare function any number of times. In such scenarios, there is a need to reset the DSP pipeline. Signed-off-by: Pardha Saradhi K Signed-off-by: Divya Prakash Signed-off-by: Sriram Periyasamy Signed-off-by: Mark Brown --- sound/soc/intel/skylake/skl-pcm.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) (limited to 'sound/soc') diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c index fe25515debec..afa86b9e4dcf 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -268,15 +268,31 @@ static int skl_pcm_prepare(struct snd_pcm_substream *substream, { struct skl *skl = get_skl_ctx(dai->dev); struct skl_module_cfg *mconfig; + int ret; dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); mconfig = skl_tplg_fe_get_cpr_module(dai, substream->stream); - /* In case of XRUN recovery, reset the FW pipe to clean state */ - if (mconfig && (substream->runtime->status->state == - SNDRV_PCM_STATE_XRUN)) - skl_reset_pipe(skl->skl_sst, mconfig->pipe); + /* + * In case of XRUN recovery or in the case when the application + * calls prepare another time, reset the FW pipe to clean state + */ + if (mconfig && + (substream->runtime->status->state == SNDRV_PCM_STATE_XRUN || + mconfig->pipe->state == SKL_PIPE_CREATED || + mconfig->pipe->state == SKL_PIPE_PAUSED)) { + + ret = skl_reset_pipe(skl->skl_sst, mconfig->pipe); + + if (ret < 0) + return ret; + + ret = skl_pcm_host_dma_prepare(dai->dev, + mconfig->pipe->p_params); + if (ret < 0) + return ret; + } return 0; } -- cgit v1.2.3-55-g7522