fsi: scom: Convert to fsi bus probe mechanism

The fsi bus got a dedicated probe function. Make use of that. This fixes
a runtime warning about the driver needing to be converted to the bus
probe method.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Acked-by: Eddie James <eajames@linux.ibm.com>
Link: https://patch.msgid.link/d02a22f2f5442dc03d1d803d1b8190bc89bc71d4.1765279318.git.u.kleine-koenig@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: ukleinek

drivers/fsi/fsi-scom.c

@@ -527,16 +527,16 @@ static void scom_free(struct device *dev)
 	kfree(scom);
 }
 
-static int scom_probe(struct device *dev)
+static int scom_probe(struct fsi_device *fsi_dev)
 {
-	struct fsi_device *fsi_dev = to_fsi_dev(dev);
+	struct device *dev = &fsi_dev->dev;
 	struct scom_device *scom;
 	int rc, didx;
 
 	scom = kzalloc(sizeof(*scom), GFP_KERNEL);
 	if (!scom)
 		return -ENOMEM;
-	dev_set_drvdata(dev, scom);
+	fsi_set_drvdata(fsi_dev, scom);
 	mutex_init(&scom->lock);
 
 	/* Grab a reference to the device (parent of our cdev), we'll drop it later */
@@ -574,18 +574,16 @@ static int scom_probe(struct device *dev)
 	return rc;
 }
 
-static int scom_remove(struct device *dev)
+static void scom_remove(struct fsi_device *fsi_dev)
 {
-	struct scom_device *scom = dev_get_drvdata(dev);
+	struct scom_device *scom = fsi_get_drvdata(fsi_dev);
 
 	mutex_lock(&scom->lock);
 	scom->dead = true;
 	mutex_unlock(&scom->lock);
 	cdev_device_del(&scom->cdev, &scom->dev);
 	fsi_free_minor(scom->dev.devt);
 	put_device(&scom->dev);
-
-	return 0;
 }
 
 static const struct of_device_id scom_of_ids[] = {
@@ -604,11 +602,11 @@ static const struct fsi_device_id scom_ids[] = {
 
 static struct fsi_driver scom_drv = {
 	.id_table = scom_ids,
+	.probe = scom_probe,
+	.remove = scom_remove,
 	.drv = {
 		.name = "scom",
 		.of_match_table = scom_of_ids,
-		.probe = scom_probe,
-		.remove = scom_remove,
 	}
 };