linux-kernel - [103/129] ALSA: HDA: Enable internal speaker on Dell M101z

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Date:	Sat, 18 Sep 2010 12:13:21 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	David Henningsson <david.henningsson@...onical.com>,
	Takashi Iwai <tiwai@...e.de>
Subject: [103/129] ALSA: HDA: Enable internal speaker on Dell M101z

2.6.35-stable review patch.  If anyone has any objections, please let us know.

------------------

From: David Henningsson <david.henningsson@...onical.com>

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@...onical.com>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 sound/pci/hda/patch_realtek.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

--- 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_
 
 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_fix
 	[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),
 	{}
 };
 


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