diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/msm/qdsp6v2/msm-pcm-q6-v2.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sound/soc/msm/qdsp6v2/msm-pcm-q6-v2.c b/sound/soc/msm/qdsp6v2/msm-pcm-q6-v2.c index 98a5c73785e0..1bb25eebe638 100644 --- a/sound/soc/msm/qdsp6v2/msm-pcm-q6-v2.c +++ b/sound/soc/msm/qdsp6v2/msm-pcm-q6-v2.c @@ -686,8 +686,15 @@ static int msm_pcm_open(struct snd_pcm_substream *substream) struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; struct msm_audio *prtd; + struct msm_plat_data *pdata; int ret = 0; + pdata = (struct msm_plat_data *) + dev_get_drvdata(soc_prtd->platform->dev); + if (!pdata) { + pr_err("%s: platform data not populated\n", __func__); + return -EINVAL; + } prtd = kzalloc(sizeof(struct msm_audio), GFP_KERNEL); if (prtd == NULL) { pr_err("Failed to allocate memory for msm_audio\n"); @@ -767,6 +774,10 @@ static int msm_pcm_open(struct snd_pcm_substream *substream) prtd->reset_event = false; runtime->private_data = prtd; msm_adsp_init_mixer_ctl_pp_event_queue(soc_prtd); + /* Vote to update the Rx thread priority to RT Thread for playback */ + if ((substream->stream == SNDRV_PCM_STREAM_PLAYBACK) && + (pdata->perf_mode == LOW_LATENCY_PCM_MODE)) + apr_start_rx_rt(prtd->audio_client->apr); return 0; } @@ -874,6 +885,7 @@ static int msm_pcm_playback_close(struct snd_pcm_substream *substream) struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *soc_prtd = substream->private_data; struct msm_audio *prtd = runtime->private_data; + struct msm_plat_data *pdata; uint32_t timeout; int dir = 0; int ret = 0; @@ -883,6 +895,16 @@ static int msm_pcm_playback_close(struct snd_pcm_substream *substream) if (prtd->audio_client) { dir = IN; + /* + * Unvote to downgrade the Rx thread priority from + * RT Thread for Low-Latency use case. + */ + pdata = (struct msm_plat_data *) + dev_get_drvdata(soc_prtd->platform->dev); + if (pdata) { + if (pdata->perf_mode == LOW_LATENCY_PCM_MODE) + apr_end_rx_rt(prtd->audio_client->apr); + } /* determine timeout length */ if (runtime->frame_bits == 0 || runtime->rate == 0) { timeout = CMD_EOS_MIN_TIMEOUT_LENGTH; |