ALSA: ak4620 support, codec regs listed in proc

* complete support for ak4620
* codec regs listed in proc for all codecs/chips
* adding total regs for each codec
* fixing nb. of steps in input attenuation controls

Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/include/sound/ak4xxx-adda.h b/include/sound/ak4xxx-adda.h
index 891cf1a..030b87c 100644
--- a/include/sound/ak4xxx-adda.h
+++ b/include/sound/ak4xxx-adda.h
@@ -68,7 +68,7 @@
 	enum {
 		SND_AK4524, SND_AK4528, SND_AK4529,
 		SND_AK4355, SND_AK4358, SND_AK4381,
-		SND_AK5365
+		SND_AK5365, SND_AK4620,
 	} type;
 
 	/* (array) information of combined codecs */
@@ -76,6 +76,9 @@
 	const struct snd_akm4xxx_adc_channel *adc_info;
 
 	struct snd_ak4xxx_ops ops;
+	unsigned int num_chips;
+	unsigned int total_regs;
+	const char *name;
 };
 
 void snd_akm4xxx_write(struct snd_akm4xxx *ak, int chip, unsigned char reg,