[ALSA] virtuoso: restrict period time to less than 10 s

Add a constraint for the period time so that there are less than ten
seconds between interrupts so that ALSA does not assume that the device
is dead.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

sound/pci/oxygen/oxygen_pcm.c

@@ -165,6 +165,12 @@ static int oxygen_open(struct snd_pcm_substream *substream,
 		if (err < 0)
 			return err;
 	}
+	if (channel == PCM_MULTICH) {
+		err = snd_pcm_hw_constraint_minmax
+			(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 0, 8192000);
+		if (err < 0)
+			return err;
+	}
 	snd_pcm_set_sync(substream);
 	chip->streams[channel] = substream;