UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ALSA: hda/realtek - Apply ALC294 hp init also for S4 resume 

The init sequence for ALC294 headphone stuff is needed not only for
the boot up time but also for the resume from hibernation, where the
device is switched from the boot kernel without sound driver to the
suspended image.  Since we record the PM event in the device
power_state field, we can now recognize the call pattern and apply the
sequence conditionally.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-01-29 14:14:51 +01:00
parent 98081ca62c
commit f6ef4e0e28
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sound/pci/hda/patch_realtek.c
View File

@ -3408,7 +3408,9 @@ static void alc294_init(struct hda_codec *codec)
{
struct alc_spec *spec = codec->spec;
if (!spec->done_hp_init) {
/* required only at boot or S4 resume time */
if (!spec->done_hp_init ||
codec->core.dev.power.power_state.event == PM_EVENT_RESTORE) {
alc294_hp_init(codec);
spec->done_hp_init = true;
}