dt: remove extra xsysace platform_driver registration

After commit 1c48a5c93, "dt: Eliminate
of_platform_{,un}register_driver", the xsysace driver attempts to
register two platform_drivers with the same name, which a) doesn't
work, and b) isn't necessary.  This patch merges the two
platform_drivers.

Reported-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

drivers/block/xsysace.c

@@ -1155,12 +1155,19 @@ static int __devinit ace_probe(struct platform_device *dev)
 {
 	resource_size_t physaddr = 0;
 	int bus_width = ACE_BUS_WIDTH_16; /* FIXME: should not be hard coded */
-	int id = dev->id;
+	u32 id = dev->id;
 	int irq = NO_IRQ;
 	int i;
 
 	dev_dbg(&dev->dev, "ace_probe(%p)\n", dev);
 
+	/* device id and bus width */
+	of_property_read_u32(dev->dev.of_node, "port-number", &id);
+	if (id < 0)
+		id = 0;
+	if (of_find_property(dev->dev.of_node, "8-bit", NULL))
+		bus_width = ACE_BUS_WIDTH_8;
+
 	for (i = 0; i < dev->num_resources; i++) {
 		if (dev->resource[i].flags & IORESOURCE_MEM)
 			physaddr = dev->resource[i].start;
@@ -1181,57 +1188,7 @@ static int __devexit ace_remove(struct platform_device *dev)
 	return 0;
 }
 
-static struct platform_driver ace_platform_driver = {
-	.probe = ace_probe,
-	.remove = __devexit_p(ace_remove),
-	.driver = {
-		.owner = THIS_MODULE,
-		.name = "xsysace",
-	},
-};
-
-/* ---------------------------------------------------------------------
- * OF_Platform Bus Support
- */
-
 #if defined(CONFIG_OF)
-static int __devinit ace_of_probe(struct platform_device *op)
-{
-	struct resource res;
-	resource_size_t physaddr;
-	const u32 *id;
-	int irq, bus_width, rc;
-
-	/* device id */
-	id = of_get_property(op->dev.of_node, "port-number", NULL);
-
-	/* physaddr */
-	rc = of_address_to_resource(op->dev.of_node, 0, &res);
-	if (rc) {
-		dev_err(&op->dev, "invalid address\n");
-		return rc;
-	}
-	physaddr = res.start;
-
-	/* irq */
-	irq = irq_of_parse_and_map(op->dev.of_node, 0);
-
-	/* bus width */
-	bus_width = ACE_BUS_WIDTH_16;
-	if (of_find_property(op->dev.of_node, "8-bit", NULL))
-		bus_width = ACE_BUS_WIDTH_8;
-
-	/* Call the bus-independent setup code */
-	return ace_alloc(&op->dev, id ? be32_to_cpup(id) : 0,
-						physaddr, irq, bus_width);
-}
-
-static int __devexit ace_of_remove(struct platform_device *op)
-{
-	ace_free(&op->dev);
-	return 0;
-}
-
 /* Match table for of_platform binding */
 static const struct of_device_id ace_of_match[] __devinitconst = {
 	{ .compatible = "xlnx,opb-sysace-1.00.b", },
@@ -1241,34 +1198,20 @@ static const struct of_device_id ace_of_match[] __devinitconst = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, ace_of_match);
+#else /* CONFIG_OF */
+#define ace_of_match NULL
+#endif /* CONFIG_OF */
 
-static struct platform_driver ace_of_driver = {
-	.probe = ace_of_probe,
-	.remove = __devexit_p(ace_of_remove),
+static struct platform_driver ace_platform_driver = {
+	.probe = ace_probe,
+	.remove = __devexit_p(ace_remove),
 	.driver = {
-		.name = "xsysace",
 		.owner = THIS_MODULE,
+		.name = "xsysace",
 		.of_match_table = ace_of_match,
 	},
 };
 
-/* Registration helpers to keep the number of #ifdefs to a minimum */
-static inline int __init ace_of_register(void)
-{
-	pr_debug("xsysace: registering OF binding\n");
-	return platform_driver_register(&ace_of_driver);
-}
-
-static inline void __exit ace_of_unregister(void)
-{
-	platform_driver_unregister(&ace_of_driver);
-}
-#else /* CONFIG_OF */
-/* CONFIG_OF not enabled; do nothing helpers */
-static inline int __init ace_of_register(void) { return 0; }
-static inline void __exit ace_of_unregister(void) { }
-#endif /* CONFIG_OF */
-
 /* ---------------------------------------------------------------------
  * Module init/exit routines
  */
@@ -1282,11 +1225,6 @@ static int __init ace_init(void)
 		goto err_blk;
 	}
 
-	rc = ace_of_register();
-	if (rc)
-		goto err_of;
-
-	pr_debug("xsysace: registering platform binding\n");
 	rc = platform_driver_register(&ace_platform_driver);
 	if (rc)
 		goto err_plat;
@@ -1295,21 +1233,17 @@ static int __init ace_init(void)
 	return 0;
 
 err_plat:
-	ace_of_unregister();
-err_of:
 	unregister_blkdev(ace_major, "xsysace");
 err_blk:
 	printk(KERN_ERR "xsysace: registration failed; err=%i\n", rc);
 	return rc;
 }
+module_init(ace_init);
 
 static void __exit ace_exit(void)
 {
 	pr_debug("Unregistering Xilinx SystemACE driver\n");
 	platform_driver_unregister(&ace_platform_driver);
-	ace_of_unregister();
 	unregister_blkdev(ace_major, "xsysace");
 }
-
-module_init(ace_init);
 module_exit(ace_exit);