From 03d7ca177fd2ecac8eb22f482f327ecaae4ac8cb Mon Sep 17 00:00:00 2001 From: Matthew Ranostay Date: Thu, 21 Feb 2008 07:51:46 +0100 Subject: [PATCH] [ALSA] hda: STAC927x analog mic Some laptops have a internal analog microphone that is not setup by the BIOS. Signed-off-by: Matthew Ranostay Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_sigmatel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index a0c290cef7..314ea51538 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -3721,6 +3721,8 @@ static int patch_stac927x(struct hda_codec *codec) spec->mixer = stac927x_mixer; break; case STAC_DELL_BIOS: + /* configure the analog microphone on some laptops */ + stac92xx_set_config_reg(codec, 0x0c, 0x90a79130); /* correct the front output jack as a hp out */ stac92xx_set_config_reg(codec, 0x0f, 0x0227011f); /* correct the front input jack as a mic */ -- 2.39.5