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Commit fd60cc89 authored by Matthew Ranostay's avatar Matthew Ranostay Committed by Takashi Iwai
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ALSA: hda - Add VREF powerdown sequence for another board 



Add powerdown sequence for VREF using a shared jack when the headphone
is present and the microphone isn't on.

Signed-off-by: default avatarMatthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent bca68467

sound/pci/hda/patch_sigmatel.c

+18 −0
Original line number Diff line number Diff line
@@ -4413,6 +4413,24 @@ static void stac92xx_unsol_event(struct hda_codec *codec, unsigned int res) 
		if (spec->num_pwrs > 0)

			stac92xx_pin_sense(codec, event->nid);

		stac92xx_report_jack(codec, event->nid);



		switch (codec->subsystem_id) {

		case 0x103c308f:

			if (event->nid == 0xb) {

				int pin = AC_PINCTL_IN_EN;



				if (get_pin_presence(codec, 0xa)

						&& get_pin_presence(codec, 0xb))

					pin |= AC_PINCTL_VREF_80;

				if (!get_pin_presence(codec, 0xb))

					pin |= AC_PINCTL_VREF_80;



				/* toggle VREF state based on mic + hp pin

				 * status

				 */

				stac92xx_auto_set_pinctl(codec, 0x0a, pin);

			}

		}

		break;

	case STAC_VREF_EVENT:

		data = snd_hda_codec_read(codec, codec->afg, 0,