ALSA: hda/realtek - Fix silent headphone output on MacPro 4,1 (v2)
ALSA: hda/realtek - Fix silent headphone output on MacPro 4,1 (v2)

Without this patch, internal speaker and line-out work,
but front headphone output jack stays silent on the
Mac Pro 4,1.

This code path also gets executed on the MacPro 5,1 due
to identical codec SSID, but i don't know if it has any
positive or adverse effects there or not.

(v2) Implement feedback from Takashi Iwai: Reuse
     alc889_fixup_mbp_vref and just add a new nid
     0x19 for the MacPro 4,1.

Signed-off-by: Mario Kleiner <1e0b3b0517a6c13598ed894fc921c5c62f243c44@gmail.com>
Cc: <4fbacc2fa0ffdbb11bf1ad6925b886ebd08dd15f@vger.kernel.org>
Signed-off-by: Takashi Iwai <4596b3305151c7ee743192a95d394341e3d3b644@suse.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs