Comment 132 for bug 1516025

(In reply to Raymond from comment #93)
> https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/
> Documentation/sound/alsa/HD-Audio.txt
>
>
>
> Early Patching
> ~~~~~~~~~~~~~~
> When CONFIG_SND_HDA_PATCH_LOADER=y is set, you can pass a "patch" as a
> firmware file for modifying the HD-audio setup before initializing the
> codec. This can work basically like the reconfiguration via sysfs in
> the above, but it does it before the first codec configuration.
>
> A patch file is a plain text file which looks like below:
>
> ------------------------------------------------------------------------
> [codec]
> 0x12345678 0xabcd1234 2
>
> [model]
> auto
>
> [pincfg]
> 0x12 0x411111f0
>
> did you set the correct codec id and subsystem id and model
>
> since you need model dell-headset-multi to call the function
> alc_fixup_headset_mode_alc668 to init the headset
>
> and those pin fix to remove headphone mic by the original mic jack and
> subwoofer
> remove the headphone jack so that line out type =speaker for the 2.1 channel
> map

data from my hda-jack-restask.fw file

[codec]
0x10ec0668 0x102805a9 0

[pincfg]
0x12 0x99a30140
0x14 0x90170110
0x15 0x0321101f
0x16 0x411111f0
0x18 0x40030008
0x19 0x03a11030
0x1a 0x90100111
0x1b 0x411111f0
0x1d 0x41000001
0x1e 0x411111f0
0x1f 0x411111f0