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Commit f710a9fb authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: hda - Control EAPD for Master volume on Lenovo N100 



Similarly as other laptops with AD1981 & co codecs, we can control
EAPD on AD1986A more safely depending on the Master switch, in order
to save some power.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 7a3e6107

sound/pci/hda/patch_analog.c

+14 −13
Original line number Diff line number Diff line
@@ -139,6 +139,18 @@ static int ad198x_suspend(struct hda_codec *codec) 
}

#endif



/* follow EAPD via vmaster hook */

static void ad_vmaster_eapd_hook(void *private_data, int enabled)

{

	struct hda_codec *codec = private_data;

	struct ad198x_spec *spec = codec->spec;



	if (!spec->eapd_nid)

		return;

	snd_hda_codec_update_cache(codec, spec->eapd_nid, 0,

				   AC_VERB_SET_EAPD_BTLENABLE,

				   enabled ? 0x02 : 0x00);

}



/*

 * Automatic parse of I/O pins from the BIOS configuration
@@ -224,6 +236,8 @@ static void ad_fixup_inv_jack_detect(struct hda_codec *codec, 
	if (action == HDA_FIXUP_ACT_PRE_PROBE) {

		codec->inv_jack_detect = 1;

		spec->gen.keep_eapd_on = 1;

		spec->gen.vmaster_mute.hook = ad_vmaster_eapd_hook;

		spec->eapd_nid = 0x1b;

	}

}
@@ -469,19 +483,6 @@ static int patch_ad1983(struct hda_codec *codec) 
 * AD1981 HD specific

 */



/* follow EAPD via vmaster hook */

static void ad_vmaster_eapd_hook(void *private_data, int enabled)

{

	struct hda_codec *codec = private_data;

	struct ad198x_spec *spec = codec->spec;



	if (!spec->eapd_nid)

		return;

	snd_hda_codec_update_cache(codec, spec->eapd_nid, 0,

				   AC_VERB_SET_EAPD_BTLENABLE,

				   enabled ? 0x02 : 0x00);

}



static void ad1981_fixup_hp_eapd(struct hda_codec *codec,

				 const struct hda_fixup *fix, int action)

{