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Commit 0fc9dec4 authored by Matthew Ranostay's avatar Matthew Ranostay Committed by Takashi Iwai
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[ALSA] hda: EAPD power management 



Power management support for EAPD enabled laptops, when headphones
are sensed it pulls the EAPD GPIO line low to power it down.

Signed-off-by: default avatarMatthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 780c8be4

sound/pci/hda/patch_sigmatel.c

+19 −6
Original line number Diff line number Diff line
@@ -129,6 +129,7 @@ struct sigmatel_spec { 
	unsigned int hp_detect: 1;



	/* gpio lines */

	unsigned int eapd_mask;

	unsigned int gpio_mask;

	unsigned int gpio_dir;

	unsigned int gpio_data;
@@ -3183,6 +3184,10 @@ static void stac92xx_hp_detect(struct hda_codec *codec, unsigned int res) 
		for (i = 0; i < cfg->speaker_outs; i++)

			stac92xx_reset_pinctl(codec, cfg->speaker_pins[i],

						AC_PINCTL_OUT_EN);

		if (spec->eapd_mask)

			stac_gpio_set(codec, spec->gpio_mask,

				spec->gpio_dir, spec->gpio_data &

				~spec->eapd_mask);

	} else {

		/* enable lineouts, disable hp */

		for (i = 0; i < cfg->line_outs; i++)
@@ -3191,6 +3196,10 @@ static void stac92xx_hp_detect(struct hda_codec *codec, unsigned int res) 
		for (i = 0; i < cfg->speaker_outs; i++)

			stac92xx_set_pinctl(codec, cfg->speaker_pins[i],

						AC_PINCTL_OUT_EN);

		if (spec->eapd_mask)

			stac_gpio_set(codec, spec->gpio_mask,

				spec->gpio_dir, spec->gpio_data |

				spec->eapd_mask);

	}

}
@@ -3478,7 +3487,7 @@ again: 
	spec->num_dmuxes = ARRAY_SIZE(stac92hd73xx_dmux_nids);

	spec->dinput_mux = &stac92hd73xx_dmux;

	/* GPIO0 High = Enable EAPD */

	spec->gpio_mask = spec->gpio_dir = 0x1;

	spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x1;

	spec->gpio_data = 0x01;



	switch (spec->board_config) {
@@ -3584,7 +3593,10 @@ again: 
	spec->aloopback_shift = 0;



	/* GPIO0 High = EAPD */

	spec->gpio_mask = spec->gpio_dir = spec->gpio_data = 0x1;

	spec->gpio_mask = 0x01;

	spec->gpio_dir = 0x01;

	spec->gpio_mask = 0x01;

	spec->gpio_data = 0x01;



	spec->mux_nids = stac92hd71bxx_mux_nids;

	spec->adc_nids = stac92hd71bxx_adc_nids;
@@ -3770,7 +3782,7 @@ static int patch_stac927x(struct hda_codec *codec) 
	case STAC_D965_3ST:

	case STAC_D965_5ST:

		/* GPIO0 High = Enable EAPD */

		spec->gpio_mask = spec->gpio_dir = 0x01;

		spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x01;

		spec->gpio_data = 0x01;

		spec->num_dmics = 0;
@@ -3794,7 +3806,7 @@ static int patch_stac927x(struct hda_codec *codec) 
		/* fallthru */

	case STAC_DELL_3ST:

		/* GPIO2 High = Enable EAPD */

		spec->gpio_mask = spec->gpio_dir = 0x04;

		spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x04;

		spec->gpio_data = 0x04;

		spec->dmic_nids = stac927x_dmic_nids;

		spec->num_dmics = STAC927X_NUM_DMICS;
@@ -3806,7 +3818,7 @@ static int patch_stac927x(struct hda_codec *codec) 
		break;

	default:

		/* GPIO0 High = Enable EAPD */

		spec->gpio_mask = spec->gpio_dir = 0x1;

		spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x1;

		spec->gpio_data = 0x01;

		spec->num_dmics = 0;
@@ -3910,6 +3922,7 @@ static int patch_stac9205(struct hda_codec *codec) 
					  (AC_USRSP_EN | STAC_HP_EVENT));



		spec->gpio_dir = 0x0b;

		spec->eapd_mask = 0x01;

		spec->gpio_mask = 0x1b;

		spec->gpio_mute = 0x10;

		/* GPIO0 High = EAPD, GPIO1 Low = Headphone Mute,
@@ -3919,7 +3932,7 @@ static int patch_stac9205(struct hda_codec *codec) 
		break;

	default:

		/* GPIO0 High = EAPD */

		spec->gpio_mask = spec->gpio_dir = 0x1;

		spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x1;

		spec->gpio_data = 0x01;

		break;

	}