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-rw-r--r--sound/core/pcm.c3
-rw-r--r--sound/core/pcm_native.c14
2 files changed, 8 insertions, 9 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 0d428d0896d..cbe815dfbdc 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -648,9 +648,6 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
substream->number = idx;
substream->stream = stream;
sprintf(substream->name, "subdevice #%i", idx);
- snprintf(substream->latency_id, sizeof(substream->latency_id),
- "ALSA-PCM%d-%d%c%d", pcm->card->number, pcm->device,
- (stream ? 'c' : 'p'), idx);
substream->buffer_bytes_max = UINT_MAX;
if (prev == NULL)
pstr->substream = substream;
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 20b5982c996..192dd407512 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -484,11 +484,13 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
snd_pcm_timer_resolution_change(substream);
runtime->status->state = SNDRV_PCM_STATE_SETUP;
- pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY,
- substream->latency_id);
+ if (substream->latency_pm_qos_req) {
+ pm_qos_remove_request(substream->latency_pm_qos_req);
+ substream->latency_pm_qos_req = NULL;
+ }
if ((usecs = period_to_usecs(runtime)) >= 0)
- pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY,
- substream->latency_id, usecs);
+ substream->latency_pm_qos_req = pm_qos_add_request(
+ PM_QOS_CPU_DMA_LATENCY, usecs);
return 0;
_error:
/* hardware might be unuseable from this time,
@@ -543,8 +545,8 @@ static int snd_pcm_hw_free(struct snd_pcm_substream *substream)
if (substream->ops->hw_free)
result = substream->ops->hw_free(substream);
runtime->status->state = SNDRV_PCM_STATE_OPEN;
- pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY,
- substream->latency_id);
+ pm_qos_remove_request(substream->latency_pm_qos_req);
+ substream->latency_pm_qos_req = NULL;
return result;
}