linux/sound
Takashi Iwai 8ba61c9f6c ALSA: usb-audio: Fix broken resume due to UAC3 power state
As reported in the bugzilla below, the PM resume of a UAC3 device may
fail due to the incomplete power state change, stuck at D1.  The
reason is that the driver expects the full D0 power state change only
at hw_params, while the normal PCM resume procedure doesn't call
hw_params.

For fixing the bug, we add the same power state update to D0 at the
prepare callback, which is certainly called by the resume procedure.

Note that, with this change, the power state change in the hw_params
becomes almost redundant, since snd_usb_hw_params() doesn't touch the
parameters (at least it tires so).  But dropping it is still a bit
risky (e.g. we have the media-driver binding), so I leave the D0 power
state change in snd_usb_hw_params() as is for now.

Fixes: a0a4959eb4 ("ALSA: usb-audio: Operate UAC3 Power Domains in PCM callbacks")
Cc: <stable@vger.kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217539
Link: https://lore.kernel.org/r/20230612132818.29486-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-16 09:28:08 +02:00
..
ac97 ALSA: ac97: make remove callback of ac97 driver void returned 2023-01-25 09:34:20 +01:00
aoa Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
arm ALSA: pxa2xx: Convert to platform remove callback returning void 2023-03-20 13:07:00 +00:00
atmel ALSA: atmel: ac97: Convert to platform remove callback returning void 2023-03-20 13:07:01 +00:00
core ALSA: seq: oss: Fix racy open/close of MIDI devices 2023-06-16 09:26:41 +02:00
drivers ASoC: Updates for v6.4 2023-04-24 15:15:31 +02:00
firewire ALSA: firewire-digi00x: prevent potential use after free 2023-05-12 10:18:05 +02:00
hda ALSA: hda: Fix unhandled register update during auto-suspend period 2023-05-22 14:20:29 +02:00
i2c ALSA: i2c/cs8427: fix iec958 mixer control deactivation 2023-04-06 08:09:36 +02:00
isa ALSA: gus: Fix kctl->id initialization 2023-06-06 14:31:05 +02:00
mips ALSA: mips/sgio2audio: Convert to platform remove callback returning void 2023-03-20 13:07:05 +00:00
oss
parisc
pci ALSA: hda/realtek: Add a quirk for Compaq N14JP6 2023-06-10 08:44:19 +02:00
pcmcia
ppc ASoC: Updates for v6.4 2023-04-24 15:15:31 +02:00
sh ALSA: sh_dac_audio: Convert to platform remove callback returning void 2023-03-20 13:07:08 +00:00
soc ASoC: fsl_sai: Enable BCI bit if SAI works on synchronous mode with BYP asserted 2023-06-02 12:54:07 +01:00
sparc ALSA: sparc/dbri: Convert to platform remove callback returning void 2023-03-20 13:09:37 +00:00
spi
synth ALSA: emux: Avoid potential array out-of-bound in snd_emux_xg_control() 2023-02-07 14:32:33 +01:00
usb ALSA: usb-audio: Fix broken resume due to UAC3 power state 2023-06-16 09:28:08 +02:00
virtio
x86
xen xen: make remove callback of xen driver void returned 2022-12-15 16:06:10 +01:00
ac97_bus.c ALSA: ac97: Remove redundant driver match function 2023-03-20 08:50:02 +01:00
Kconfig mfd: remove ucb1400 support 2023-02-01 17:23:38 +01:00
last.c
Makefile
sound_core.c driver core: class: remove module * from class_create() 2023-03-17 15:16:33 +01:00