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ALSA: hda - Mute headphone pin on suspend on XPS13 9333 

Muting the headphone output pin right before the codec suspension
prevents pop noises when headphones are plugged in (except for a
barely audible click noise).
This solution allows to truly save some power when headphones are
plugged in unlike the previous solution (033b0a7ca9c:
"ALSA: hda - Pop noises fix for XPS13 9333")

Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Gabriele Mazzotta 2015-04-19 19:00:40 +02:00 committed by Takashi Iwai
parent bc26d4d06e
commit 9476d369d7
1 changed files with 7 additions and 10 deletions
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17
sound/pci/hda/patch_realtek.c
View File

@ -4176,17 +4176,15 @@ static void alc_fixup_disable_aamix(struct hda_codec *codec,
}
}
static unsigned int alc_power_filter_xps13(struct hda_codec *codec,
hda_nid_t nid,
unsigned int power_state)
static void alc_shutup_dell_xps13(struct hda_codec *codec)
{
struct alc_spec *spec = codec->spec;
int hp_pin = spec->gen.autocfg.hp_pins[0];
/* Avoid pop noises when headphones are plugged in */
if (spec->gen.hp_jack_present)
if (nid == codec->core.afg || nid == 0x02 || nid == 0x15)
return AC_PWRST_D0;
return snd_hda_gen_path_power_filter(codec, nid, power_state);
/* Prevent pop noises when headphones are plugged in */
snd_hda_codec_write(codec, hp_pin, 0,
AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
msleep(20);
}
static void alc_fixup_dell_xps13(struct hda_codec *codec,
@ -4197,8 +4195,7 @@ static void alc_fixup_dell_xps13(struct hda_codec *codec,
struct hda_input_mux *imux = &spec->gen.input_mux;
int i;
spec->shutup = alc_no_shutup;
codec->power_filter = alc_power_filter_xps13;
spec->shutup = alc_shutup_dell_xps13;
/* Make the internal mic the default input source. */
for (i = 0; i < imux->num_items; i++) {