ALSA: hda - Consolidate cap_sync_hook and capture_switch_hook

Two hooks in hda_gen_spec, cap_sync_hook and capture_switch_hook, play
very similar roles.  The only differences are that the former is
called more often (e.g. at init or switching capsrc) while the latter
can take an on/off argument.

As a more generic implementation, consolidate these two hooks, and
pass snd_ctl_elem_value pointer as the second argument.  If the
secondary argument is non-NULL, it can take the on/off value, so the
caller handles it like the former capture_switch_hook.  If it's NULL,
it's called in the init or capsrc switch case.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h
index f6b88cd..594a9cc 100644
--- a/sound/pci/hda/hda_generic.h
+++ b/sound/pci/hda/hda_generic.h
@@ -233,7 +233,8 @@
 	/* hooks */
 	void (*init_hook)(struct hda_codec *codec);
 	void (*automute_hook)(struct hda_codec *codec);
-	void (*cap_sync_hook)(struct hda_codec *codec);
+	void (*cap_sync_hook)(struct hda_codec *codec,
+			      struct snd_ctl_elem_value *ucontrol);
 
 	/* PCM hooks */
 	void (*pcm_playback_hook)(struct hda_pcm_stream *hinfo,
@@ -252,9 +253,6 @@
 				   struct hda_jack_tbl *tbl);
 	void (*mic_autoswitch_hook)(struct hda_codec *codec,
 				    struct hda_jack_tbl *tbl);
-
-	/* capture switch hook (for mic-mute LED) */
-	void (*capture_switch_hook)(struct hda_codec *codec, bool enable);
 };
 
 int snd_hda_gen_spec_init(struct hda_gen_spec *spec);