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

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
View File

@ -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,