ALSA: hda - Rearrange INPUT_PIN_ATTR_*

Put INPUT_PIN_ATTR_FRONT after INPUT_PIN_ATTR_REAR, and define
INPUT_PIN_ATTR_LAST to point to the last element.

This is a preliminary work for cleaning up Realtek auto-mic parser.
In the auto-mic implementation, the front panel is preferred over the
rear panel.  By arranging the attr definitions like in this commit, we
can simply use sort() for figuring out the priority order.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_auto_parser.c

@@ -363,7 +363,7 @@ static const char *hda_get_input_pin_label(struct hda_codec *codec,
 {
 	unsigned int def_conf;
 	static const char * const mic_names[] = {
-		"Internal Mic", "Dock Mic", "Mic", "Front Mic", "Rear Mic",
+		"Internal Mic", "Dock Mic", "Mic", "Rear Mic", "Front Mic"
 	};
 	int attr;
 

sound/pci/hda/hda_auto_parser.h

@@ -51,8 +51,9 @@ enum {
 	INPUT_PIN_ATTR_INT,	/* internal mic/line-in */
 	INPUT_PIN_ATTR_DOCK,	/* docking mic/line-in */
 	INPUT_PIN_ATTR_NORMAL,	/* mic/line-in jack */
-	INPUT_PIN_ATTR_FRONT,	/* mic/line-in jack in front */
 	INPUT_PIN_ATTR_REAR,	/* mic/line-in jack in rear */
+	INPUT_PIN_ATTR_FRONT,	/* mic/line-in jack in front */
+	INPUT_PIN_ATTR_LAST = INPUT_PIN_ATTR_FRONT,
 };
 
 int snd_hda_get_input_pin_attr(unsigned int def_conf);

sound/pci/hda/patch_via.c

@@ -1913,7 +1913,7 @@ static void mangle_smart51(struct hda_codec *codec)
 	int i, j, nums, attr;
 	int pins[AUTO_CFG_MAX_INS];
 
-	for (attr = INPUT_PIN_ATTR_REAR; attr >= INPUT_PIN_ATTR_NORMAL; attr--) {
+	for (attr = INPUT_PIN_ATTR_LAST; attr >= INPUT_PIN_ATTR_NORMAL; attr--) {
 		nums = 0;
 		for (i = 0; i < cfg->num_inputs; i++) {
 			unsigned int def;