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ALSA: hda: fix mute led polarity for HP laptops with buggy BIOS 

Some HP laptop models do not have a properly filled OEM string used
to set the gpio and polarity of the mute led. Make the mute led
configuration work for this case.

Signed-off-by: Gustavo Maciel Dias Vieira <gustavo@sagui.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
hifive-unleashed-5.1
Gustavo Maciel Dias Vieira 2011-12-13 11:47:22 -02:00 committed by Takashi Iwai
parent 1c89fe3b51
commit e2ef36c688
1 changed files with 6 additions and 0 deletions
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6
sound/pci/hda/patch_sigmatel.c
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@ -4929,6 +4929,12 @@ static int find_mute_led_gpio(struct hda_codec *codec, int default_polarity)
set_hp_led_gpio(codec);
return 1;
}
/* BIOS bug: unfilled OEM string */
if (strstr(dev->name, "HP_Mute_LED_P_G")) {
set_hp_led_gpio(codec);
spec->gpio_led_polarity = 1;
return 1;
}
}
/*