From a6a600d10aaddf1da38053c4c6b64f50f56176e6 Mon Sep 17 00:00:00 2001
From: Gustavo Maciel Dias Vieira <gustavo@sagui.org>
Date: Tue, 24 Jan 2012 13:27:56 -0200
Subject: 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>

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 336cfcd..948f0be 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -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;
 			}
 		}
-- 
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