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[ALSA] hda-codec - Check PINCAP only for PIN widgets

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The recent addition of checking PINCAP for EAPD seems to break some
systems due to unexpected response from the codec chip.  We shouldn't
issue GET_PINCAP verb to non-PIN widgets.  Now checks the widget type
before checking EAPD bit.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Takashi Iwai 2007-11-14 14:53:42 +01:00 committed by Jaroslav Kysela
parent 60fac85fff
commit 7eba5c9dc3
1 changed files with 20 additions and 13 deletions
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33
sound/pci/hda/hda_codec.c
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@ -1625,19 +1625,26 @@ static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
nid = codec->start_nid;
for (i = 0; i < codec->num_nodes; i++, nid++) {
if (get_wcaps(codec, nid) & AC_WCAP_POWER) {
unsigned int pincap;
/*
* don't power down the widget if it controls eapd
* and EAPD_BTLENABLE is set.
*/
pincap = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
if (pincap & AC_PINCAP_EAPD) {
int eapd = snd_hda_codec_read(codec, nid,
0, AC_VERB_GET_EAPD_BTLENABLE, 0);
eapd &= 0x02;
if (power_state == AC_PWRST_D3 && eapd)
continue;
unsigned int wcaps = get_wcaps(codec, nid);
if (wcaps & AC_WCAP_POWER) {
unsigned int wid_type = (wcaps & AC_WCAP_TYPE) >>
AC_WCAP_TYPE_SHIFT;
if (wid_type == AC_WID_PIN) {
unsigned int pincap;
/*
* don't power down the widget if it controls
* eapd and EAPD_BTLENABLE is set.
*/
pincap = snd_hda_param_read(codec, nid,
AC_PAR_PIN_CAP);
if (pincap & AC_PINCAP_EAPD) {
int eapd = snd_hda_codec_read(codec,
nid, 0,
AC_VERB_GET_EAPD_BTLENABLE, 0);
eapd &= 0x02;
if (power_state == AC_PWRST_D3 && eapd)
continue;
}
}
snd_hda_codec_write(codec, nid, 0,
AC_VERB_SET_POWER_STATE,