linux/sound
Takashi Iwai 7b9cf90366 ALSA: usb-audio: Unify mixer resume and reset_resume procedure
USB-audio driver assumes that the normal resume would preserve the
device configuration while reset_resume wouldn't, and tries to restore
the mixer elements only at reset_resume callback.  However, this seems
too naive, and some devices do behave differently, resetting the
volume at the normal resume; this resulted in the inconsistent volume
that surprised users.

This patch changes the mixer resume code to handle both the normal and
reset resume in the same way, always restoring the original mixer
element values.  This allows us to unify the both callbacks as well as
dropping the no longer used reset_resume field, which ends up with a
good code reduction.

A slight behavior change by this patch is that now we assign
restore_mixer_value() as the default resume callback, and the function
is no longer called at reset-resume when the resume callback is
overridden by the quirk function.  That is, if needed, the quirk
resume function would have to handle similarly as
restore_mixer_value() by itself.

Reported-by: En-Shuo Hsu <enshuo@chromium.org>
Cc: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Link: https://lore.kernel.org/r/CADDZ45UPsbpAAqP6=ZkTT8BE-yLii4Y7xSDnjK550G2DhQsMew@mail.gmail.com
Link: https://lore.kernel.org/r/20210910105155.12862-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-09-13 15:00:31 +02:00
..
ac97 bus: Make remove callback return void 2021-07-21 11:53:42 +02:00
aoa Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
arm ALSA: pxa2xx: Use managed PCM buffer allocation 2021-08-04 08:08:21 +02:00
atmel
core Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
drivers ALSA: pcsp: Allocate resources with device-managed APIs 2021-07-19 16:17:32 +02:00
firewire ALSA: oxfw: fix transmission method for Loud models based on OXFW971 2021-09-13 07:31:58 +02:00
hda ALSA: hda: intel-dsp-cfg: add missing ElkhartLake PCI ID 2021-07-20 09:10:55 +02:00
i2c ALSA: i2c: tea6330t: Remove redundant initialization of variable err 2021-06-12 09:32:14 +02:00
isa ALSA: gus: Fix repeated probe for ISA interwave card 2021-09-07 11:40:08 +02:00
mips ALSA: n64: check return value after calling platform_get_resource() 2021-06-12 09:31:13 +02:00
oss sound/oss/dmasound: Remove superfluous "break" 2021-05-27 08:24:23 +02:00
parisc parisc architecture updates for kernel 5.15: 2021-09-02 13:16:00 -07:00
pci Revert "ALSA: hda: Drop workaround for a hang at shutdown again" 2021-09-13 14:54:37 +02:00
pcmcia ALSA: vx: Manage vx_core object with devres 2021-07-19 16:17:09 +02:00
ppc ALSA: ppc: fix error return code in snd_pmac_probe() 2021-06-16 08:52:29 +02:00
sh
soc sound fixes for 5.15-rc1 2021-09-09 16:05:10 -07:00
sparc ALSA: sparc: Fix assignment in if condition 2021-06-09 17:30:29 +02:00
spi
synth ALSA: emux: fix spelling mistakes 2021-07-05 19:34:22 +02:00
usb ALSA: usb-audio: Unify mixer resume and reset_resume procedure 2021-09-13 15:00:31 +02:00
virtio ALSA: virtio: fix kernel-doc 2021-04-27 08:39:39 +02:00
x86 ALSA: memalloc: Correctly name as WC 2021-08-04 08:07:58 +02:00
xen
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c