hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ALSA: hda - Fix codec muted after rebooting from Windows 

Windows may leave pin power-down registers set after reboot, and
this resulted in muted output on Linux.  Reset these registers
at initialization properly.

Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Charles 2010-10-18 16:22:00 +08:00 committed by Takashi Iwai
parent c08d91695b
commit 1cc9e8f4c4
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
sound/pci/hda/patch_sigmatel.c
View File

@ -5334,6 +5334,9 @@ static int patch_stac92hd83xxx(struct hda_codec *codec)
if (spec == NULL)
return -ENOMEM;
/* reset pin power-down; Windows may leave these bits after reboot */
snd_hda_codec_write_cache(codec, codec->afg, 0, 0x7EC, 0);
snd_hda_codec_write_cache(codec, codec->afg, 0, 0x7ED, 0);
codec->no_trigger_sense = 1;
codec->spec = spec;
spec->linear_tone_beep = 1;