ALSA: hda - minor optimization in hda_set_power_state()
Check the target power-state before checking EAPD exception to reduce
unneeded verb executions.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index b649033..b91f6ed 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2348,7 +2348,8 @@
if (wcaps & AC_WCAP_POWER) {
unsigned int wid_type = (wcaps & AC_WCAP_TYPE) >>
AC_WCAP_TYPE_SHIFT;
- if (wid_type == AC_WID_PIN) {
+ if (power_state == AC_PWRST_D3 &&
+ wid_type == AC_WID_PIN) {
unsigned int pincap;
/*
* don't power down the widget if it controls
@@ -2360,7 +2361,7 @@
nid, 0,
AC_VERB_GET_EAPD_BTLENABLE, 0);
eapd &= 0x02;
- if (power_state == AC_PWRST_D3 && eapd)
+ if (eapd)
continue;
}
}