[alsa-devel] [PATCH 080/112] ALSA: hda - Add inv_eapd flag to struct hda_codec

[Takashi Iwai]

Add the new flag, codec->inv_eapd, indicating that the EAPD
implementation is inverted.

There are always broken hardware in the world.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/hda/hda_codec.h   | 1 +
 sound/pci/hda/hda_generic.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 2d9a51c..369ffaf 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -866,6 +866,7 @@ 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 no_jack_detect:1;	/* Machine has no jack-detection */
+	unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
 	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_generic.c b/sound/pci/hda/hda_generic.c
index cc47460..18daa8f 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -545,6 +545,8 @@ static void set_pin_eapd(struct hda_codec *codec, hda_nid_t pin, bool enable)
 	if (spec->own_eapd_ctl ||
 	    !(snd_hda_query_pin_caps(codec, pin) & AC_PINCAP_EAPD))
 		return;
+	if (codec->inv_eapd)
+		enable = !enable;
 	snd_hda_codec_update_cache(codec, pin, 0,
 				   AC_VERB_SET_EAPD_BTLENABLE,
 				   enable ? 0x02 : 0x00);
-- 
1.8.0.1