ALSA: oxfw: code refactoring to detect mackie models

This commit changes condition statement to call mackie models detection
just for the device entry. Additionally, comment is added for Onyx 1640i.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20210518084557.102681-5-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/oxfw/oxfw.c

@@ -245,7 +245,7 @@ static int oxfw_probe(struct fw_unit *unit,
 {
 	struct snd_oxfw *oxfw;
 
-	if (entry->vendor_id == VENDOR_LOUD && !detect_loud_models(unit))
+	if (entry->vendor_id == VENDOR_LOUD && entry->model_id == 0 && !detect_loud_models(unit))
 		return -ENODEV;
 
 	/* Allocate this independent of sound card instance. */
@@ -341,6 +341,7 @@ static const struct ieee1394_device_id oxfw_id_table[] = {
 	/*
 	 * Any Mackie(Loud) models (name string/model id):
 	 *  Onyx-i series (former models):	0x081216
+	 *  Onyx 1640i:				0x001640
 	 *  Mackie Onyx Satellite:		0x00200f
 	 *  Tapco LINK.firewire 4x6:		0x000460
 	 *  d.2 pro/d.4 pro (built-in card):	Unknown
@@ -352,6 +353,7 @@ static const struct ieee1394_device_id oxfw_id_table[] = {
 				  IEEE1394_MATCH_SPECIFIER_ID |
 				  IEEE1394_MATCH_VERSION,
 		.vendor_id	= VENDOR_LOUD,
+		.model_id	= 0,
 		.specifier_id	= SPECIFIER_1394TA,
 		.version	= VERSION_AVC,
 	},