arm: convert sysdev_class to a regular subsystem

After all sysdev classes are ported to regular driver core entities, the
sysdev implementation will be entirely removed from the kernel.

Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Boojin Kim <boojin.kim@samsung.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/arch/arm/mach-s3c2440/s3c244x-clock.c b/arch/arm/mach-s3c2440/s3c244x-clock.c
index 7f5ea0a..b3fdbdd 100644
--- a/arch/arm/mach-s3c2440/s3c244x-clock.c
+++ b/arch/arm/mach-s3c2440/s3c244x-clock.c
@@ -28,7 +28,6 @@
 #include <linux/errno.h>
 #include <linux/err.h>
 #include <linux/device.h>
-#include <linux/sysdev.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/clk.h>
@@ -73,7 +72,7 @@
 	},
 };
 
-static int s3c244x_clk_add(struct sys_device *sysdev)
+static int s3c244x_clk_add(struct device *dev)
 {
 	unsigned long camdivn = __raw_readl(S3C2440_CAMDIVN);
 	unsigned long clkdivn;
@@ -115,24 +114,28 @@
 	return 0;
 }
 
-static struct sysdev_driver s3c2440_clk_driver = {
-	.add		= s3c244x_clk_add,
+static struct subsys_interface s3c2440_clk_interface = {
+	.name		= "s3c2440_clk",
+	.subsys		= &s3c2440_subsys,
+	.add_dev	= s3c244x_clk_add,
 };
 
 static int s3c2440_clk_init(void)
 {
-	return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_clk_driver);
+	return subsys_interface_register(&s3c2440_clk_interface);
 }
 
 arch_initcall(s3c2440_clk_init);
 
-static struct sysdev_driver s3c2442_clk_driver = {
-	.add		= s3c244x_clk_add,
+static struct subsys_interface s3c2442_clk_interface = {
+	.name		= "s3c2442_clk",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	= s3c244x_clk_add,
 };
 
 static int s3c2442_clk_init(void)
 {
-	return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_clk_driver);
+	return subsys_interface_register(&s3c2442_clk_interface);
 }
 
 arch_initcall(s3c2442_clk_init);