[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: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 6 insertions, 0 deletions

diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c
index 09a16e459de9..c4ad65a3406f 100644
--- a/sound/pci/oxygen/oxygen_pcm.c
+++ b/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;