[alsa-devel] [PATCH 081/112] ALSA: hda - Add codec->inv_jack_detect flag

[Takashi Iwai]

Yet another broken hardware workaround: there are hardware indicating
the inverted jack detection bit result.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/hda/hda_codec.h | 1 +
 sound/pci/hda/hda_jack.c  | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 369ffaf..9f241d1 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -867,6 +867,7 @@ struct hda_codec {
 	unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
 	unsigned int no_jack_detect:1;	/* Machine has no jack-detection */
 	unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
+	unsigned int inv_jack_detect:1;	/* broken h/w: inverted detection bit */
 	unsigned int pcm_format_first:1; /* PCM format must be set first */
 	unsigned int epss:1;		/* supporting EPSS? */
 	unsigned int cached_write:1;	/* write only to caches */
diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c
index 6e9f57b..6479b65 100644
--- a/sound/pci/hda/hda_jack.c
+++ b/sound/pci/hda/hda_jack.c
@@ -39,6 +39,7 @@ EXPORT_SYMBOL_HDA(is_jack_detectable);
 static u32 read_pin_sense(struct hda_codec *codec, hda_nid_t nid)
 {
 	u32 pincap;
+	u32 val;
 
 	if (!codec->no_trigger_sense) {
 		pincap = snd_hda_query_pin_caps(codec, nid);
@@ -46,8 +47,11 @@ static u32 read_pin_sense(struct hda_codec *codec, hda_nid_t nid)
 			snd_hda_codec_read(codec, nid, 0,
 					AC_VERB_SET_PIN_SENSE, 0);
 	}
-	return snd_hda_codec_read(codec, nid, 0,
+	val = snd_hda_codec_read(codec, nid, 0,
 				  AC_VERB_GET_PIN_SENSE, 0);
+	if (codec->inv_jack_detect)
+		val ^= AC_PINSENSE_PRESENCE;
+	return val;
 }
 
 /**
-- 
1.8.0.1