[ALSA] Add default values for power-saving as Kconfig options

Added CONFIG_SND_AC97_POWER_SAVE_DEFAULT and CONFIG_SND_HDA_POWER_SAVE_DEFAULT
Kconfig options as the default values for power-saving mode of AC97 and
HD-audio drivers, respectively.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/pci/Kconfig

@@ -589,6 +589,14 @@ config SND_HDA_POWER_SAVE
 	  HD-audio driver.  The power-saving timeout can be configured
 	  via power_save option or over sysfs on-the-fly.
 
+config SND_HDA_POWER_SAVE_DEFAULT
+	int "Default time-out for HD-audio power-save mode"
+	depends on SND_HDA_POWER_SAVE
+	default 0
+	help
+	  The default time-out value in seconds for HD-audio automatic
+	  power-save mode.  0 means to disable the power-save mode.
+
 config SND_HDSP
 	tristate "RME Hammerfall DSP Audio"
 	depends on SND
@@ -888,4 +896,11 @@ config SND_AC97_POWER_SAVE
 	  snd-ac97-codec driver.  You can toggle it dynamically over
 	  sysfs, too.
 
+config SND_AC97_POWER_SAVE_DEFAULT
+	int "Default time-out for AC97 power-save mode"
+	depends on SND_AC97_POWER_SAVE
+	default 0
+	  The default time-out value in seconds for AC97 automatic
+	  power-save mode.  0 means to disable the power-save mode.
+
 endmenu

sound/pci/ac97/ac97_codec.c

@@ -49,7 +49,7 @@ module_param(enable_loopback, bool, 0444);
 MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
 
 #ifdef CONFIG_SND_AC97_POWER_SAVE
-static int power_save;
+static int power_save = CONFIG_SND_AC97_POWER_SAVE_DEFAULT;
 module_param(power_save, bool, 0644);
 MODULE_PARM_DESC(power_save, "Enable AC97 power-saving control");
 #endif

sound/pci/hda/hda_codec.c

@@ -35,7 +35,7 @@
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
 /* define this option here to hide as static */
-static int power_save = 10;
+static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
 module_param(power_save, int, 0644);
 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
 		 "(in second, 0 = disable).");