[PATCH] ALSA: HDA: Fix front mic on Dell Precision M6500

[David Henningsson]

The BIOS of Dell Precision M6500 lists both 0x0e and 0x11 as
front mics, and the driver only supports one front mic. This
commit adds a quirk for preferring node 0x11 (internal mic) to
node 0x0e (possibly docking station mic).

Signed-off-by: David Henningsson <david.henningsson at canonical.com>
---
 sound/pci/hda/patch_sigmatel.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 95148e5..656c54b 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -95,6 +95,7 @@ enum {
 	STAC_DELL_S14,
 	STAC_92HD83XXX_HP,
 	STAC_HP_DV7_4000,
+	STAC_DELL_M6500,
 	STAC_92HD83XXX_MODELS
 };
 
@@ -1633,6 +1634,14 @@ static unsigned int dell_s14_pin_configs[10] = {
 	0x40f000f0, 0x40f000f0,
 };
 
+/* Dell Precision M6500, make sure 0x0e is silenced */
+static unsigned int dell_m6500_pin_configs[10] = {
+	0x03a11030, 0x0321101f, 0x400000f0, 0x90170110, 
+	0x400000f0, 0x23011050, 0x400000f0, 0x90a10120,
+	0x014613b0, 0x400000f0,
+};
+
+
 static unsigned int hp_dv7_4000_pin_configs[10] = {
 	0x03a12050, 0x0321201f, 0x40f000f0, 0x90170110,
 	0x40f000f0, 0x40f000f0, 0x90170110, 0xd5a30140,
@@ -1643,6 +1652,7 @@ static unsigned int *stac92hd83xxx_brd_tbl[STAC_92HD83XXX_MODELS] = {
 	[STAC_92HD83XXX_REF] = ref92hd83xxx_pin_configs,
 	[STAC_92HD83XXX_PWR_REF] = ref92hd83xxx_pin_configs,
 	[STAC_DELL_S14] = dell_s14_pin_configs,
+	[STAC_DELL_M6500] = dell_m6500_pin_configs,
 	[STAC_HP_DV7_4000] = hp_dv7_4000_pin_configs,
 };
 
@@ -1651,6 +1661,7 @@ static const char *stac92hd83xxx_models[STAC_92HD83XXX_MODELS] = {
 	[STAC_92HD83XXX_REF] = "ref",
 	[STAC_92HD83XXX_PWR_REF] = "mic-ref",
 	[STAC_DELL_S14] = "dell-s14",
+	[STAC_DELL_M6500] = "dell-m6500",
 	[STAC_92HD83XXX_HP] = "hp",
 	[STAC_HP_DV7_4000] = "hp-dv7-4000",
 };
@@ -1663,6 +1674,8 @@ static struct snd_pci_quirk stac92hd83xxx_cfg_tbl[] = {
 		      "DFI LanParty", STAC_92HD83XXX_REF),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x02ba,
 		      "unknown Dell", STAC_DELL_S14),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x02ef,
+		      "Dell M6500", STAC_DELL_M6500),
 	SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_HP, 0xff00, 0x3600,
 		      "HP", STAC_92HD83XXX_HP),
 	{} /* terminator */
-- 
1.7.0.4


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