Hi Stable kernel maintainers,
Just upstreaming something we just applied to 2.6.38 in Ubuntu - if you
find it worthwhile to add it as well, feel free to do so. IIRC the codec
in question was probably added around 2.6.36 or 2.6.37, so applying it
too far back won't make much sense.
--
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic
>From c6066ab342e8cb3e4e3ec74f7577f099d79465b3 Mon Sep 17 00:00:00 2001
From: David Henningsson <[email protected]>
Date: Tue, 22 Mar 2011 10:23:28 +0100
Subject: [PATCH] ALSA: HDA: Fix internal mic on Dell E5420/E5520
This is a fixup for the 2.6.38 kernel, as the issue is being resolved
by upstream commits 699d899560cd7e72da39231e584412e7ac8114a4 and
094a42452abd5564429045e210281c6d22e67fca - which are too invasive
to reach 2.6.38. Instead make pin fixes as a workaround.
BugLink: http://bugs.launchpad.net/bugs/740055
Tested-by: Kent Baxley <[email protected]>
Signed-off-by: David Henningsson <[email protected]>
---
sound/pci/hda/patch_sigmatel.c | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index bd7b123..03d1d35 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -94,6 +94,7 @@ enum {
STAC_92HD83XXX_REF,
STAC_92HD83XXX_PWR_REF,
STAC_DELL_S14,
+ STAC_DELL_E5520M,
STAC_92HD83XXX_HP,
STAC_HP_DV7_4000,
STAC_92HD83XXX_MODELS
@@ -1652,6 +1653,13 @@ static unsigned int dell_s14_pin_configs[10] = {
0x40f000f0, 0x40f000f0,
};
+/* Switch int mic from 0x20 to 0x11 */
+static unsigned int dell_e5520m_pin_configs[10] = {
+ 0x04a11020, 0x0421101f, 0x400000f0, 0x90170110,
+ 0x23011050, 0x23a1102e, 0x400000f3, 0xd5a30130,
+ 0x400000f0, 0x40f000f0,
+};
+
static unsigned int hp_dv7_4000_pin_configs[10] = {
0x03a12050, 0x0321201f, 0x40f000f0, 0x90170110,
0x40f000f0, 0x40f000f0, 0x90170110, 0xd5a30140,
@@ -1662,6 +1670,7 @@ 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_E5520M] = dell_e5520m_pin_configs,
[STAC_HP_DV7_4000] = hp_dv7_4000_pin_configs,
};
@@ -1670,6 +1679,7 @@ static const char * const stac92hd83xxx_models[STAC_92HD83XXX_MODELS] = {
[STAC_92HD83XXX_REF] = "ref",
[STAC_92HD83XXX_PWR_REF] = "mic-ref",
[STAC_DELL_S14] = "dell-s14",
+ [STAC_DELL_E5520M] = "dell-e5520m",
[STAC_92HD83XXX_HP] = "hp",
[STAC_HP_DV7_4000] = "hp-dv7-4000",
};
@@ -1682,6 +1692,14 @@ 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, 0x049a,
+ "Dell E5520", STAC_DELL_E5520M),
+ SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x049b,
+ "Dell E5420", STAC_DELL_E5520M),
+ SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x04eb,
+ "Dell E5420m", STAC_DELL_E5520M),
+ SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x04ec,
+ "Dell E5520m", STAC_DELL_E5520M),
SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_HP, 0xff00, 0x3600,
"HP", STAC_92HD83XXX_HP),
{} /* terminator */
--
1.7.1
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