[ALSA] Fix AC97 power-saving mode
Fix the bug in AC97 power-saving mode that the power isn't turned on
when power_save is set to 1 via sysfs during the power off state.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index a79e918..6577b23 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -570,8 +570,7 @@
ac97->power_up &= ~(1 << (reg>>1));
else
ac97->power_up |= 1 << (reg>>1);
- if (power_save)
- update_power_regs(ac97);
+ update_power_regs(ac97);
}
#endif
return err;
@@ -2337,10 +2336,7 @@
}
}
- if (! power_save)
- return 0;
-
- if (! powerup && ac97->power_workq)
+ if (power_save && !powerup && ac97->power_workq)
/* adjust power-down bits after two seconds delay
* (for avoiding loud click noises for many (OSS) apps
* that open/close frequently)