Merge branch 'sbp2-spindown' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee139...

[linux-2.6] / sound / pci / ac97 / ac97_codec.c

diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index 6a9966df0cc907c8d30268734be09485b429590a..07364c00768a4dd90f8eceeb338d899955a17685 100644 (file)
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -22,7 +22,6 @@
  *
  */
 
-#include <sound/driver.h>
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -50,8 +49,9 @@ MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
 
 #ifdef CONFIG_SND_AC97_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");
+module_param(power_save, int, 0644);
+MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
+                "(in second, 0 = disable).");
 #endif
 /*
 
@@ -2295,9 +2295,11 @@ static void snd_ac97_powerdown(struct snd_ac97 *ac97)
        power |= AC97_PD_PR0 | AC97_PD_PR1;     /* ADC & DAC powerdown */
        snd_ac97_write(ac97, AC97_POWERDOWN, power);
        udelay(100);
-       power |= AC97_PD_PR2 | AC97_PD_PR3;     /* Analog Mixer powerdown */
+       power |= AC97_PD_PR2;   /* Analog Mixer powerdown (Vref on) */
        snd_ac97_write(ac97, AC97_POWERDOWN, power);
        if (ac97_is_power_save_mode(ac97)) {
+               power |= AC97_PD_PR3;   /* Analog Mixer powerdown */
+               snd_ac97_write(ac97, AC97_POWERDOWN, power);
                udelay(100);
                /* AC-link powerdown, internal Clk disable */
                /* FIXME: this may cause click noises on some boards */
@@ -2363,7 +2365,7 @@ int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup)
                 *  that open/close frequently)
                 */
                schedule_delayed_work(&ac97->power_work,
-                                     msecs_to_jiffies(2000));
+                                     msecs_to_jiffies(power_save * 1000));
        else {
                cancel_delayed_work(&ac97->power_work);
                update_power_regs(ac97);