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ALSA: hda - Disable IDT eapd_switch if there are no internal speakers

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If there are no internal speakers, we should not turn the eapd switch
off, because it might be necessary to keep high for Headphone.

BugLink: https://bugs.launchpad.net/bugs/1155016
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
David Henningsson 2013-03-14 15:28:29 +01:00 committed by Takashi Iwai
parent b5f82b1044
commit 303985f810
1 changed files with 29 additions and 0 deletions
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29
sound/pci/hda/patch_sigmatel.c
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@ -815,6 +815,29 @@ static int find_mute_led_cfg(struct hda_codec *codec, int default_polarity)
return 0;
}
/* check whether a built-in speaker is included in parsed pins */
static bool has_builtin_speaker(struct hda_codec *codec)
{
struct sigmatel_spec *spec = codec->spec;
hda_nid_t *nid_pin;
int nids, i;
if (spec->gen.autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT) {
nid_pin = spec->gen.autocfg.line_out_pins;
nids = spec->gen.autocfg.line_outs;
} else {
nid_pin = spec->gen.autocfg.speaker_pins;
nids = spec->gen.autocfg.speaker_outs;
}
for (i = 0; i < nids; i++) {
unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid_pin[i]);
if (snd_hda_get_input_pin_attr(def_conf) == INPUT_PIN_ATTR_INT)
return true;
}
return false;
}
/*
* PC beep controls
*/
@ -3890,6 +3913,12 @@ static int patch_stac92hd73xx(struct hda_codec *codec)
return err;
}
/* Don't GPIO-mute speakers if there are no internal speakers, because
* the GPIO might be necessary for Headphone
*/
if (spec->eapd_switch && !has_builtin_speaker(codec))
spec->eapd_switch = 0;
codec->proc_widget_hook = stac92hd7x_proc_hook;
snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PROBE);