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Merge "asoc: vote for Glink Rx thread priority upgrade"

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Linux Build Service Account 2017-12-20 00:31:38 -08:00 • committed by Gerrit - the friendly Code Review server
commit 6b6dae7320
1 changed files with 22 additions and 0 deletions
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22
asoc/msm-pcm-q6-v2.c
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@ -614,8 +614,15 @@ 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)
return -ENOMEM;
@ -693,6 +700,10 @@ 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;
}
@ -800,6 +811,7 @@ 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;
@ -809,6 +821,16 @@ 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;