From b0791dda813c179e539b0fc1ecd3f5f30f2571e2 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 15 May 2012 08:07:31 +0200
Subject: [PATCH] ALSA: hda/idt - Fix power-map for speaker-pins with some HP
laptops
BIOS on some HP laptops don't set the speaker-pins as fixed but expose
as jacks, and this confuses the driver as if these pins are
jack-detectable. As a result, the machine doesn't get sounds from
speakers because the driver prepares the power-map update via jack
unsol events which never come up in reality. The bug was introduced
in some time in 3.2 for enabling the power-mapping feature.
This patch fixes the problem by replacing the check of the persistent
power-map bits with a proper is_jack_detectable() call.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43240
Cc: <stable@vger.kernel.org> [v3.2+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/pci/hda/patch_sigmatel.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 4742cac26aa9..2cb1e08f962a 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -4415,9 +4415,9 @@ static int stac92xx_init(struct hda_codec *codec)
def_conf = get_defcfg_connect(def_conf);
/* skip any ports that don't have jacks since presence
* detection is useless */
- if (def_conf != AC_JACK_PORT_COMPLEX) {
- if (def_conf != AC_JACK_PORT_NONE)
- stac_toggle_power_map(codec, nid, 1);
+ if (def_conf != AC_JACK_PORT_NONE &&
+ !is_jack_detectable(codec, nid)) {
+ stac_toggle_power_map(codec, nid, 1);
continue;
}
if (enable_pin_detect(codec, nid, STAC_PWR_EVENT)) {
--
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