linux

iv/linux

History

Takashi Iwai e79d0f97cc ALSA: usb-audio: Relax hw constraints for implicit fb sync

[ Upstream commit d463ac1acb454fafed58f695cb3067fbf489f3a0 ]

The fix commit the commit e4ea77f8e53f ("ALSA: usb-audio: Always apply
the hw constraints for implicit fb sync") tried to address the bug
where an incorrect PCM parameter is chosen when two (implicit fb)
streams are set up at the same time.  This change had, however, some
side effect: once when the sync endpoint is chosen and set up, this
restriction is applied at the next hw params unless it's freed via hw
free explicitly.

This patch is a workaround for the problem by relaxing the hw
constraints a bit for the implicit fb sync.  We still keep applying
the hw constraints for implicit fb sync, but only when the matching
sync EP is being used by other streams.

Fixes: e4ea77f8e53f ("ALSA: usb-audio: Always apply the hw constraints for implicit fb sync")
Reported-by: Ruud van Asseldonk <ruud@veniogames.com>
Link: https://lore.kernel.org/r/4e509aea-e563-e592-e652-ba44af6733fe@veniogames.com
Link: https://lore.kernel.org/r/20230102170759.29610-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-01-18 11:48:54 +01:00

ac97

bus: Make remove callback return void

2021-07-21 11:53:42 +02:00

aoa

ALSA: aoa: Fix I2S device accounting

2022-11-03 23:59:18 +09:00

arm

ALSA: pxa2xx: Use managed PCM buffer allocation

2021-08-04 08:08:21 +02:00

atmel

…