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ALSA: hda: set mute led polarity for laptops with buggy BIOS based on SSID 

HP laptop models with buggy BIOS are apparently frequent, including
machines with different codecs. Set the polarity of the mute led based
on the SSID and include an entry for the HP Mini 110-3100.

Signed-off-by: Gustavo Maciel Dias Vieira <gustavo@sagui.org>
Tested-by: Predrag Ivanovic <predivan@open.telekom.rs>
Cc: <stable@kernel.org> [v3.2+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Gustavo Maciel Dias Vieira 2012-01-24 13:27:56 -02:00 committed by Takashi Iwai
parent 3b25eb690e
commit a6a600d10a
1 changed files with 8 additions and 1 deletions
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9
sound/pci/hda/patch_sigmatel.c
View File

@ -4870,7 +4870,14 @@ static int find_mute_led_cfg(struct hda_codec *codec, int default_polarity)
/* BIOS bug: unfilled OEM string */
if (strstr(dev->name, "HP_Mute_LED_P_G")) {
set_hp_led_gpio(codec);
spec->gpio_led_polarity = 1;
switch (codec->subsystem_id) {
case 0x103c148a:
spec->gpio_led_polarity = 0;
break;
default:
spec->gpio_led_polarity = 1;
break;
}
return 1;
}
}