[ALSA] hda-intel - Add power_save_controller module option

Add power_save_controller module option instead of define flag.
Also, added descriptions of new module options in ALSA-Configuration.txt.

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

1 files changed, 11 insertions, 14 deletions

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index f9c7c2e4f922..e20629a2d7d1 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -75,8 +75,18 @@ MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
 module_param(enable_msi, int, 0);
 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
 
+#ifdef CONFIG_SND_HDA_POWER_SAVE
 /* power_save option is defined in hda_codec.c */
 
+/* reset the HD-audio controller in power save mode.
+ * this may give more power-saving, but will take longer time to
+ * wake up.
+ */
+static int power_save_controller = 1;
+module_param(power_save_controller, bool, 0644);
+MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
+#endif
+
 /* just for backward compatibility */
 static int enable;
 module_param(enable, bool, 0444);
@@ -102,17 +112,6 @@ MODULE_DESCRIPTION("Intel HDA driver");
 
 #define SFX     "hda-intel: "
 
-/*
- * build flags
- */
-
-/*
- * reset the HD-audio controller in power save mode.
- * this may give more power-saving, but will take longer time to
- * wake up.
- */
-#define HDA_POWER_SAVE_RESET_CONTROLLER
-
 
 /*
  * registers
@@ -1533,10 +1532,8 @@ static void azx_power_notify(struct hda_codec *codec)
         }
         if (power_on)
                 azx_init_chip(chip);
-#ifdef HDA_POWER_SAVE_RESET_CONTROLLER
-        else if (chip->running)
+        else if (chip->running && power_save_controller)
                 azx_stop_chip(chip);
-#endif
 }
 #endif /* CONFIG_SND_HDA_POWER_SAVE */