[ALSA] usbaudio - Revert the minimal period size fix patch
The last patch didn't really work (false report).
Although the hardware supports 125us minimum period, the current
usb-audio driver code assumes the 1ms period in many places.
Rollback the change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 78efcff..8ebc1ad 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -1878,10 +1878,11 @@
}
/* set the period time minimum 1ms */
+ /* FIXME: high-speed mode allows 125us minimum period, but many parts
+ * in the current code assume the 1ms period.
+ */
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME,
- snd_usb_get_speed(subs->dev) == USB_SPEED_FULL ?
-
- 1000 * MIN_PACKS_URB : 125 * MIN_PACKS_URB,
+ 1000 * MIN_PACKS_URB,
/*(nrpacks * MAX_URBS) * 1000*/ UINT_MAX);
if (check_hw_params_convention(subs)) {
