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| author | Matthew Ranostay <mranostay@embeddedalley.com> | 2008-01-07 12:18:28 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 17:29:45 +0100 |
| commit | c481fca3e68155459e9805dc8c303e012ccbee54 (patch) | |
| tree | d10ca3c86fe311671732cc8d66f5b6ab7d90593f | |
| parent | 740eb8358f2bf337fd4ec62abb5b8cca7c652e5a (diff) | |
| download | kernel-crypto-c481fca3e68155459e9805dc8c303e012ccbee54.tar.gz kernel-crypto-c481fca3e68155459e9805dc8c303e012ccbee54.tar.xz kernel-crypto-c481fca3e68155459e9805dc8c303e012ccbee54.zip | |
[ALSA] hda: STAC927x VREF fix
Some laptops incorrectly assume the front input jack as a line in
instead of a microphone in. Which in turn disables the voltage
reference, in which non-amplified input is not possible. This patch
enables VREF80 for the input jack.
Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
| -rw-r--r-- | sound/pci/hda/patch_sigmatel.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index a074155dd8d..4e71bbaa195 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -3344,6 +3344,9 @@ static int patch_stac927x(struct hda_codec *codec) spec->mixer = stac927x_mixer; break; case STAC_DELL_BIOS: + /* correct the front input jack as a mic */ + stac92xx_set_config_reg(codec, 0x0e, 0x02a79130); + /* fallthru */ case STAC_DELL_3ST: /* GPIO2 High = Enable EAPD */ spec->gpio_mask = spec->gpio_data = 0x00000004; |