ALSA: via82xx: allow to disable the SRC
Add the PCM rule to allow disabling the PCM playback SRC. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -1175,6 +1175,7 @@ static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
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struct snd_pcm_runtime *runtime = substream->runtime;
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int err;
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struct via_rate_lock *ratep;
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bool use_src = false;
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runtime->hw = snd_via82xx_hw;
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@ -1196,6 +1197,7 @@ static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
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SNDRV_PCM_RATE_8000_48000);
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runtime->hw.rate_min = 8000;
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runtime->hw.rate_max = 48000;
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use_src = true;
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} else if (! ratep->rate) {
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int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
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runtime->hw.rates = chip->ac97->rates[idx];
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@ -1212,6 +1214,12 @@ static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
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if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
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return err;
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if (use_src) {
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err = snd_pcm_hw_rule_noresample(runtime, 48000);
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if (err < 0)
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return err;
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}
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runtime->private_data = viadev;
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viadev->substream = substream;
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