ASoC: core - allow ASoC more flexible machine name

Allow ASoC machine drivers to register a driver name
and a longname. This allows user space to determine
the flavour of machine driver.
Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

include/sound/soc.h

@@ -702,6 +702,8 @@ struct snd_soc_aux_dev {
 /* SoC card */
 struct snd_soc_card {
 	const char *name;
+	const char *long_name;
+	const char *driver_name;
 	struct device *dev;
 	struct snd_card *snd_card;
 	struct module *owner;

sound/soc/soc-core.c

@@ -1926,9 +1926,11 @@ static void snd_soc_instantiate_card(struct snd_soc_card *card)
 					card->num_dapm_routes);
 
 	snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
-		 "%s",  card->name);
-	snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
 		 "%s", card->name);
+	snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
+		 "%s", card->long_name ? card->long_name : card->name);
+	snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
+		 "%s", card->driver_name);
 
 	if (card->late_probe) {
 		ret = card->late_probe(card);