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

@@ -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)) {