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Commit 72474be6 authored by Matt Ranostay's avatar Matt Ranostay Committed by Jaroslav Kysela
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ALSA: hda: VREF powerdown for headphones 



Add support for powering down VREF on standard headphone insertion, also
powers up the VREF on a headset insertion.

Signed-off-by: default avatarMatthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent b9aea715

sound/pci/hda/patch_sigmatel.c

+22 −1
Original line number Original line Diff line number Diff line
@@ -38,6 +38,7 @@ 
#define NUM_CONTROL_ALLOC	32

#define NUM_CONTROL_ALLOC	32

#define STAC_PWR_EVENT		0x20

#define STAC_PWR_EVENT		0x20

#define STAC_HP_EVENT		0x30

#define STAC_HP_EVENT		0x30

#define STAC_VREF_EVENT		0x40





enum {

enum {

	STAC_REF,

	STAC_REF,
@@ -3854,13 +3855,22 @@ static void stac92xx_unsol_event(struct hda_codec *codec, unsigned int res) 
	struct sigmatel_spec *spec = codec->spec;

	struct sigmatel_spec *spec = codec->spec;

	int idx = res >> 26 & 0x0f;

	int idx = res >> 26 & 0x0f;





	switch ((res >> 26) & 0x30) {

	switch ((res >> 26) & 0x70) {

	case STAC_HP_EVENT:

	case STAC_HP_EVENT:

		stac92xx_hp_detect(codec, res);

		stac92xx_hp_detect(codec, res);

		/* fallthru */

		/* fallthru */

	case STAC_PWR_EVENT:

	case STAC_PWR_EVENT:

		if (spec->num_pwrs > 0)

		if (spec->num_pwrs > 0)

			stac92xx_pin_sense(codec, idx);

			stac92xx_pin_sense(codec, idx);

		break;

	case STAC_VREF_EVENT: {

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

			AC_VERB_GET_GPIO_DATA, 0);

		/* toggle VREF state based on GPIOx status */

		snd_hda_codec_write(codec, codec->afg, 0, 0x7e0,

			!!(data & (1 << idx)));

		break;

		}

	}

	}

}

}
@@ -4360,6 +4370,17 @@ static int patch_stac92hd71bxx(struct hda_codec *codec) 
		codec->slave_dig_outs = stac92hd71bxx_slave_dig_outs;

		codec->slave_dig_outs = stac92hd71bxx_slave_dig_outs;

		break;

		break;

	case 0x111d7608: /* 5 Port with Analog Mixer */

	case 0x111d7608: /* 5 Port with Analog Mixer */

		switch (codec->subsystem_id) {

		case 0x103c361a:

			/* Enable VREF power saving on GPIO1 detect */

			snd_hda_codec_write(codec, codec->afg, 0,

				AC_VERB_SET_GPIO_UNSOLICITED_RSP_MASK, 0x02);

			snd_hda_codec_write_cache(codec, codec->afg, 0,

					AC_VERB_SET_UNSOLICITED_ENABLE,

					(AC_USRSP_EN | STAC_VREF_EVENT | 0x01));

			spec->gpio_mask |= 0x02;

			break;

		}

		if ((codec->revision_id & 0xf) == 0 ||

		if ((codec->revision_id & 0xf) == 0 ||

				(codec->revision_id & 0xf) == 1) {

				(codec->revision_id & 0xf) == 1) {

#ifdef SND_HDA_NEEDS_RESUME

#ifdef SND_HDA_NEEDS_RESUME