ALSA: cs5535audio: clean up OLPC code

- add copyright info to _olpc.c
 - minor layout fixes
 - make Makefile more concise
 - silence a warning

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/cs5535audio/Makefile

@@ -4,10 +4,7 @@
 
 snd-cs5535audio-y := cs5535audio.o cs5535audio_pcm.o
 snd-cs5535audio-$(CONFIG_PM) += cs5535audio_pm.o
-
-ifdef CONFIG_OLPC
-snd-cs5535audio-objs += cs5535audio_olpc.o
-endif
+snd-cs5535audio-$(CONFIG_OLPC) += cs5535audio_olpc.o
 
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_CS5535AUDIO) += snd-cs5535audio.o

sound/pci/cs5535audio/cs5535audio.c

@@ -174,7 +174,6 @@ static int __devinit snd_cs5535audio_mixer(struct cs5535audio *cs5535au)
 
 	snd_ac97_tune_hardware(cs5535au->ac97, ac97_quirks, ac97_quirk);
 
-	/* olpc_quirks is dummied out if not olpc */
 	err = olpc_quirks(card, cs5535au->ac97);
 	if (err < 0) {
 		snd_printk(KERN_ERR "olpc quirks failed\n");

sound/pci/cs5535audio/cs5535audio_olpc.c

@@ -1,4 +1,14 @@
-#include <sound/driver.h>
+/*
+ * OLPC XO-1 additional sound features
+ *
+ * Copyright © 2006  Jaya Kumar <jayakumar.lkml@gmail.com>
+ * Copyright © 2007-2008  Andres Salomon <dilinger@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
 #include <sound/core.h>
 #include <sound/info.h>
 #include <sound/control.h>
@@ -106,7 +116,7 @@ static struct snd_kcontrol_new olpc_cs5535audio_ctls[] __devinitdata = {
 	.info = olpc_dc_info,
 	.get = olpc_dc_get,
 	.put = olpc_dc_put,
-	.private_value = 0
+	.private_value = 0,
 },
 {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -161,4 +171,3 @@ int __devinit olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
 	olpc_mic_bias(ac97, 0);
 	return 0;
 }
-