ALSA: hda - Add codec->no_jack_detect flag

Add a new flag to indicate that the codec has no jack-detection cap.
This flag should be set for hardwares that have no jack-detect
implementation although the codec chip itself supports it.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_codec.h

@@ -852,6 +852,7 @@ struct hda_codec {
 	unsigned int pins_shutup:1;	/* pins are shut up */
 	unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
 	unsigned int ignore_misc_bit:1; /* ignore MISC_NO_PRESENCE bit */
+	unsigned int no_jack_detect:1;	/* Machine has no jack-detection */
 #ifdef CONFIG_SND_HDA_POWER_SAVE
 	unsigned int power_on :1;	/* current (global) power-state */
 	unsigned int power_transition :1; /* power-state in transition */

sound/pci/hda/hda_jack.c

@@ -21,6 +21,8 @@
 
 bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid)
 {
+	if (codec->no_jack_detect)
+		return false;
 	if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_PRES_DETECT))
 		return false;
 	if (!codec->ignore_misc_bit &&