From 6162552b0de6ba80937c3dd53e084967851cd199 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 25 Jul 2012 13:54:55 +0200
Subject: [PATCH] ALSA: hda - Fix invalid D3 of headphone DAC on VT202x codecs
Git-commit: 6162552b0de6ba80937c3dd53e084967851cd199
Patch-mainline: 3.6-rc1
References: FATE#314106

We've got a bug report about the silent output from the headphone on a
mobo with VT2021, and spotted out that this was because of the wrong
D3 state on the DAC for the headphone output.  The bug is triggered by
the incomplete check for this DAC in set_widgets_power_state_vt1718S().
It checks only the connectivity of the primary output (0x27) but
doesn't consider the path from the headphone pin (0x28).

Now this patch fixes the problem by checking both pins for DAC 0x0b.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

---
 sound/pci/hda/patch_via.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -3224,7 +3224,7 @@ static void set_widgets_power_state_vt17
 {
 	struct via_spec *spec = codec->spec;
 	int imux_is_smixer;
-	unsigned int parm;
+	unsigned int parm, parm2;
 	/* MUX6 (1eh) = stereo mixer */
 	imux_is_smixer =
 	snd_hda_codec_read(codec, 0x1e, 0, AC_VERB_GET_CONNECT_SEL, 0x00) == 5;
@@ -3247,7 +3247,7 @@ static void set_widgets_power_state_vt17
 	parm = AC_PWRST_D3;
 	set_pin_power_state(codec, 0x27, &parm);
 	update_power_state(codec, 0x1a, parm);
-	update_power_state(codec, 0xb, parm);
+	parm2 = parm; /* for pin 0x0b */
 
 	/* PW2 (26h), AOW2 (ah) */
 	parm = AC_PWRST_D3;
@@ -3262,6 +3262,9 @@ static void set_widgets_power_state_vt17
 	if (!spec->hp_independent_mode) /* check for redirected HP */
 		set_pin_power_state(codec, 0x28, &parm);
 	update_power_state(codec, 0x8, parm);
+	if (!spec->hp_independent_mode && parm2 != AC_PWRST_D3)
+		parm = parm2;
+	update_power_state(codec, 0xb, parm);
 	/* MW9 (21h), Mw2 (1ah), AOW0 (8h) */
 	update_power_state(codec, 0x21, imux_is_smixer ? AC_PWRST_D0 : parm);
 
