[ALSA] ac97 - Allow drivers to set static volume resolution table

Modules: AC97 Codec

Add the pointer to a static volume resolution table to ac97 template,
so that the drivers can define the volume resolution, too.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

include/sound/ac97_codec.h

@@ -433,6 +433,12 @@ struct snd_ac97_bus {
 	struct snd_info_entry *proc;
 };
 
+/* static resolution table */
+struct snd_ac97_res_table {
+	unsigned short reg;	/* register */
+	unsigned short bits;	/* resolution bitmask */
+};
+
 struct snd_ac97_template {
 	void *private_data;
 	void (*private_free) (struct snd_ac97 *ac97);
@@ -442,12 +448,7 @@ struct snd_ac97_template {
 	unsigned int scaps;	/* driver capabilities */
 	unsigned int limited_regs; /* allow limited registers only */
 	DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
-};
-
-/* static resolution table */
-struct snd_ac97_res_table {
-	unsigned short reg;	/* register */
-	unsigned short bits;	/* resolution bitmask */
+	const struct snd_ac97_res_table *res_table;	/* static resolution */
 };
 
 struct snd_ac97 {

sound/pci/ac97/ac97_codec.c

@@ -1868,6 +1868,7 @@ int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template,
 	ac97->scaps = template->scaps;
 	ac97->limited_regs = template->limited_regs;
 	memcpy(ac97->reg_accessed, template->reg_accessed, sizeof(ac97->reg_accessed));
+	ac97->res_table = template->res_table;
 	bus->codec[ac97->num] = ac97;
 	mutex_init(&ac97->reg_mutex);
 	mutex_init(&ac97->page_mutex);