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authorTakashi Iwai <tiwai@suse.de>2007-11-14 14:53:42 +0100
committerJaroslav Kysela <perex@perex.cz>2007-11-19 18:38:32 +0100
commit7eba5c9dc3735b14e3df7366671adc15e0c8a048 (patch)
tree861964ee416186daf70408eb7da6be77fa42b301
parent[ALSA] mpu401: fix recursive locking in timer (diff)
downloadlinux-dev-7eba5c9dc3735b14e3df7366671adc15e0c8a048.tar.xz
linux-dev-7eba5c9dc3735b14e3df7366671adc15e0c8a048.zip
[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>
-rw-r--r--sound/pci/hda/hda_codec.c33
1 files changed, 20 insertions, 13 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index b52f56ffedf4..8cbe3bf1e317 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -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,