From: David Henningsson <david.henningsson@canonical.com>
Date: Thu, 16 Sep 2010 08:07:53 +0000 (+0200)
Subject: ALSA: HDA: Enable internal speaker on Dell M101z
X-Git-Tag: v2.6.35.5~27
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1f4536a2af4726c1e27c2fda343d02879eb61e5b;p=thirdparty%2Fkernel%2Fstable.git

ALSA: HDA: Enable internal speaker on Dell M101z

commit 145a902bfeb1f89a41165bd2d1e633ce070bcb73 upstream.

BugLink: http://launchpad.net/bugs/640254

In some cases a magic processing coefficient is needed to enable
the internal speaker on Dell M101z. According to Realtek, this
processing coefficient is only present on ALC269vb.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 2b9c88990a7be..76c4968c2a383 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -14230,6 +14230,7 @@ static void alc269_auto_init(struct hda_codec *codec)
 
 enum {
 	ALC269_FIXUP_SONY_VAIO,
+	ALC269_FIXUP_DELL_M101Z,
 };
 
 static const struct hda_verb alc269_sony_vaio_fixup_verbs[] = {
@@ -14241,11 +14242,20 @@ static const struct alc_fixup alc269_fixups[] = {
 	[ALC269_FIXUP_SONY_VAIO] = {
 		.verbs = alc269_sony_vaio_fixup_verbs
 	},
+	[ALC269_FIXUP_DELL_M101Z] = {
+		.verbs = (const struct hda_verb[]) {
+			/* Enables internal speaker */
+			{0x20, AC_VERB_SET_COEF_INDEX, 13},
+			{0x20, AC_VERB_SET_PROC_COEF, 0x4040},
+			{}
+		}
+	},
 };
 
 static struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x104d, 0x9071, "Sony VAIO", ALC269_FIXUP_SONY_VAIO),
 	SND_PCI_QUIRK(0x104d, 0x9077, "Sony VAIO", ALC269_FIXUP_SONY_VAIO),
+	SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),
 	{}
 };