ALSA: oxygen: add probe callback

Add a probe callback to the model structure so that model-specific
drivers can refine their model detection before the card is initialized.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c
index 07b0563..58bbc01 100644
--- a/sound/pci/oxygen/oxygen_lib.c
+++ b/sound/pci/oxygen/oxygen_lib.c
@@ -424,7 +424,8 @@
 }
 
 int oxygen_pci_probe(struct pci_dev *pci, int index, char *id,
-		     const struct oxygen_model *model)
+		     const struct oxygen_model *model,
+		     unsigned long driver_data)
 {
 	struct snd_card *card;
 	struct oxygen *chip;
@@ -470,6 +471,11 @@
 	snd_card_set_dev(card, &pci->dev);
 	card->private_free = oxygen_card_free;
 
+	if (chip->model.probe) {
+		err = chip->model.probe(chip, driver_data);
+		if (err < 0)
+			goto err_card;
+	}
 	oxygen_init(chip);
 	chip->model.init(chip);