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>
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 35d5f43..c3656ff 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -1175,6 +1175,7 @@
struct snd_pcm_runtime *runtime = substream->runtime;
int err;
struct via_rate_lock *ratep;
+ bool use_src = false;
runtime->hw = snd_via82xx_hw;
@@ -1196,6 +1197,7 @@
SNDRV_PCM_RATE_8000_48000);
runtime->hw.rate_min = 8000;
runtime->hw.rate_max = 48000;
+ use_src = true;
} else if (! ratep->rate) {
int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
runtime->hw.rates = chip->ac97->rates[idx];
@@ -1212,6 +1214,12 @@
if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
return err;
+ if (use_src) {
+ err = snd_pcm_hw_rule_noresample(runtime, 48000);
+ if (err < 0)
+ return err;
+ }
+
runtime->private_data = viadev;
viadev->substream = substream;