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authorGabriele Mazzotta <gabriele.mzt@gmail.com>2015-04-19 19:00:40 +0200
committerTakashi Iwai <tiwai@suse.de>2015-04-20 09:15:07 +0200
commit9476d369d7b39348945c297da5f2935904229813 (patch)
treee9bfd6650024d7786324a180c395d3c2270dbb0f /sound
parentbc26d4d06e337ade069f33d3f4377593b24e6e36 (diff)
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/patch_realtek.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index b18b9c67b262..231d0e4b9a95 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -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++) {

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