Date: Fri Jun 17 2011 08:17:56 +0200
From: Clemens Ladisch <clemens@ladisch.de>
Subject: ALSA: firewire-speakers, oxygen, ua101: allow > 10 s periods

Since commit f2b3614cefb6 (Don't check DMA time-out too shortly),
drivers need no longer restrict their PCM period length to be shorter
than 10 seconds.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index 5466de8..3fc257d 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -171,7 +171,7 @@ static int fwspk_open(struct snd_pcm_substream *substream)
 
 	err = snd_pcm_hw_constraint_minmax(runtime,
 					   SNDRV_PCM_HW_PARAM_PERIOD_TIME,
-					   5000, 8192000);
+					   5000, UINT_MAX);
 	if (err < 0)
 		return err;
 
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c
index d5533e3..cc0bcd9 100644
--- a/sound/pci/oxygen/oxygen_pcm.c
+++ b/sound/pci/oxygen/oxygen_pcm.c
@@ -168,12 +168,6 @@ 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;
 
diff --git a/sound/usb/misc/ua101.c b/sound/usb/misc/ua101.c
index fb5d68f..67bec76 100644
--- a/sound/usb/misc/ua101.c
+++ b/sound/usb/misc/ua101.c
@@ -645,7 +645,7 @@ static int set_stream_hw(struct ua101 *ua, struct snd_pcm_substream *substream,
 	err = snd_pcm_hw_constraint_minmax(substream->runtime,
 					   SNDRV_PCM_HW_PARAM_PERIOD_TIME,
 					   1500000 / ua->packets_per_second,
-					   8192000);
+					   UINT_MAX);
 	if (err < 0)
 		return err;
 	err = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 32, 24);