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>

11 files changed, 103 insertions, 82 deletions

diff --git a/arch/arm/mach-s3c2440/clock.c b/arch/arm/mach-s3c2440/clock.c
index f9e6bdaf41d2..d8957592fdc4 100644
--- a/arch/arm/mach-s3c2440/clock.c
+++ b/arch/arm/mach-s3c2440/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/mutex.h>
@@ -108,7 +107,7 @@ static struct clk s3c2440_clk_ac97 = {
 	.ctrlbit	= S3C2440_CLKCON_CAMERA,
 };
 
-static int s3c2440_clk_add(struct sys_device *sysdev)
+static int s3c2440_clk_add(struct device *dev)
 {
 	struct clk *clock_upll;
 	struct clk *clock_h;
@@ -137,13 +136,15 @@ static int s3c2440_clk_add(struct sys_device *sysdev)
 	return 0;
 }
 
-static struct sysdev_driver s3c2440_clk_driver = {
-	.add	= s3c2440_clk_add,
+static struct subsys_interface s3c2440_clk_interface = {
+	.name		= "s3c2440_clk",
+	.subsys		= &s3c2440_subsys,
+	.add_dev	= s3c2440_clk_add,
 };
 
-static __init int s3c24xx_clk_driver(void)
+static __init int s3c24xx_clk_init(void)
 {
-	return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_clk_driver);
+	return subsys_interface_register(&s3c2440_clk_interface);
 }
 
-arch_initcall(s3c24xx_clk_driver);
+arch_initcall(s3c24xx_clk_init);
diff --git a/arch/arm/mach-s3c2440/dma.c b/arch/arm/mach-s3c2440/dma.c
index 0e73f8f9d132..15b1ddf8f626 100644
--- a/arch/arm/mach-s3c2440/dma.c
+++ b/arch/arm/mach-s3c2440/dma.c
@@ -14,7 +14,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/serial_core.h>
 
 #include <mach/map.h>
@@ -174,20 +174,22 @@ static struct s3c24xx_dma_order __initdata s3c2440_dma_order = {
 	},
 };
 
-static int __init s3c2440_dma_add(struct sys_device *sysdev)
+static int __init s3c2440_dma_add(struct device *dev)
 {
 	s3c2410_dma_init();
 	s3c24xx_dma_order_set(&s3c2440_dma_order);
 	return s3c24xx_dma_init_map(&s3c2440_dma_sel);
 }
 
-static struct sysdev_driver s3c2440_dma_driver = {
-	.add	= s3c2440_dma_add,
+static struct subsys_interface s3c2440_dma_interface = {
+	.name		= "s3c2440_dma",
+	.subsys		= &s3c2440_subsys,
+	.add_dev	= s3c2440_dma_add,
 };
 
 static int __init s3c2440_dma_init(void)
 {
-	return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_dma_driver);
+	return subsys_interface_register(&s3c2440_dma_interface);
 }
 
 arch_initcall(s3c2440_dma_init);
diff --git a/arch/arm/mach-s3c2440/irq.c b/arch/arm/mach-s3c2440/irq.c
index eb1cc0f0705e..4fee9bc6bcb5 100644
--- a/arch/arm/mach-s3c2440/irq.c
+++ b/arch/arm/mach-s3c2440/irq.c
@@ -23,7 +23,7 @@
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/io.h>
 
 #include <mach/hardware.h>
@@ -92,7 +92,7 @@ static struct irq_chip s3c_irq_wdtac97 = {
 	.irq_ack	= s3c_irq_wdtac97_ack,
 };
 
-static int s3c2440_irq_add(struct sys_device *sysdev)
+static int s3c2440_irq_add(struct device *dev)
 {
 	unsigned int irqno;
 
@@ -113,13 +113,15 @@ static int s3c2440_irq_add(struct sys_device *sysdev)
 	return 0;
 }
 
-static struct sysdev_driver s3c2440_irq_driver = {
-	.add		= s3c2440_irq_add,
+static struct subsys_interface s3c2440_irq_interface = {
+	.name		= "s3c2440_irq",
+	.subsys		= &s3c2440_subsys,
+	.add_dev	= s3c2440_irq_add,
 };
 
 static int s3c2440_irq_init(void)
 {
-	return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_irq_driver);
+	return subsys_interface_register(&s3c2440_irq_interface);
 }
 
 arch_initcall(s3c2440_irq_init);
diff --git a/arch/arm/mach-s3c2440/s3c2440-cpufreq.c b/arch/arm/mach-s3c2440/s3c2440-cpufreq.c
index 976002fb1b8f..cf7596694efe 100644
--- a/arch/arm/mach-s3c2440/s3c2440-cpufreq.c
+++ b/arch/arm/mach-s3c2440/s3c2440-cpufreq.c
@@ -17,7 +17,7 @@
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/cpufreq.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/delay.h>
 #include <linux/clk.h>
 #include <linux/err.h>
@@ -270,7 +270,7 @@ struct s3c_cpufreq_info s3c2440_cpufreq_info = {
 	.debug_io_show  = s3c_cpufreq_debugfs_call(s3c2410_iotiming_debugfs),
 };
 
-static int s3c2440_cpufreq_add(struct sys_device *sysdev)
+static int s3c2440_cpufreq_add(struct device *dev)
 {
 	xtal = s3c_cpufreq_clk_get(NULL, "xtal");
 	hclk = s3c_cpufreq_clk_get(NULL, "hclk");
@@ -285,27 +285,29 @@ static int s3c2440_cpufreq_add(struct sys_device *sysdev)
 	return s3c_cpufreq_register(&s3c2440_cpufreq_info);
 }
 
-static struct sysdev_driver s3c2440_cpufreq_driver = {
-	.add		= s3c2440_cpufreq_add,
+static struct subsys_interface s3c2440_cpufreq_interface = {
+	.name		= "s3c2440_cpufreq",
+	.subsys		= &s3c2440_subsys,
+	.add_dev	= s3c2440_cpufreq_add,
 };
 
 static int s3c2440_cpufreq_init(void)
 {
-	return sysdev_driver_register(&s3c2440_sysclass,
-				      &s3c2440_cpufreq_driver);
+	return subsys_interface_register(&s3c2440_cpufreq_interface);
 }
 
 /* arch_initcall adds the clocks we need, so use subsys_initcall. */
 subsys_initcall(s3c2440_cpufreq_init);
 
-static struct sysdev_driver s3c2442_cpufreq_driver = {
-	.add		= s3c2440_cpufreq_add,
+static struct subsys_interface s3c2442_cpufreq_interface = {
+	.name		= "s3c2442_cpufreq",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	= s3c2440_cpufreq_add,
 };
 
 static int s3c2442_cpufreq_init(void)
 {
-	return sysdev_driver_register(&s3c2442_sysclass,
-				      &s3c2442_cpufreq_driver);
+	return subsys_interface_register(&s3c2442_cpufreq_interface);
 }
 
 subsys_initcall(s3c2442_cpufreq_init);
diff --git a/arch/arm/mach-s3c2440/s3c2440-pll-12000000.c b/arch/arm/mach-s3c2440/s3c2440-pll-12000000.c
index f105d5e8c477..b5368ae8d7fe 100644
--- a/arch/arm/mach-s3c2440/s3c2440-pll-12000000.c
+++ b/arch/arm/mach-s3c2440/s3c2440-pll-12000000.c
@@ -14,7 +14,7 @@
 
 #include <linux/types.h>
 #include <linux/kernel.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 
@@ -51,7 +51,7 @@ static struct cpufreq_frequency_table s3c2440_plls_12[] __initdata = {
 	{ .frequency = 400000000,	.index = PLLVAL(0x5c, 1, 1),  }, 	/* FVco 800.000000 */
 };
 
-static int s3c2440_plls12_add(struct sys_device *dev)
+static int s3c2440_plls12_add(struct device *dev)
 {
 	struct clk *xtal_clk;
 	unsigned long xtal;
@@ -72,25 +72,29 @@ static int s3c2440_plls12_add(struct sys_device *dev)
 	return 0;
 }
 
-static struct sysdev_driver s3c2440_plls12_drv = {
-	.add	= s3c2440_plls12_add,
+static struct subsys_interface s3c2440_plls12_interface = {
+	.name		= "s3c2440_plls12",
+	.subsys		= &s3c2440_subsys,
+	.add_dev	= s3c2440_plls12_add,
 };
 
 static int __init s3c2440_pll_12mhz(void)
 {
-	return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_plls12_drv);
+	return subsys_interface_register(&s3c2440_plls12_interface);
 
 }
 
 arch_initcall(s3c2440_pll_12mhz);
 
-static struct sysdev_driver s3c2442_plls12_drv = {
-	.add	= s3c2440_plls12_add,
+static struct subsys_interface s3c2442_plls12_interface = {
+	.name		= "s3c2442_plls12",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	= s3c2440_plls12_add,
 };
 
 static int __init s3c2442_pll_12mhz(void)
 {
-	return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_plls12_drv);
+	return subsys_interface_register(&s3c2442_plls12_interface);
 
 }
 
diff --git a/arch/arm/mach-s3c2440/s3c2440-pll-16934400.c b/arch/arm/mach-s3c2440/s3c2440-pll-16934400.c
index c8a8f90ef382..42f2b5cd2399 100644
--- a/arch/arm/mach-s3c2440/s3c2440-pll-16934400.c
+++ b/arch/arm/mach-s3c2440/s3c2440-pll-16934400.c
@@ -14,7 +14,7 @@
 
 #include <linux/types.h>
 #include <linux/kernel.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 
@@ -79,7 +79,7 @@ static struct cpufreq_frequency_table s3c2440_plls_169344[] __initdata = {
 	{ .frequency = 402192000,	.index = PLLVAL(87, 2, 1), 	}, 	/* FVco 804.384000 */
 };
 
-static int s3c2440_plls169344_add(struct sys_device *dev)
+static int s3c2440_plls169344_add(struct device *dev)
 {
 	struct clk *xtal_clk;
 	unsigned long xtal;
@@ -100,28 +100,28 @@ static int s3c2440_plls169344_add(struct sys_device *dev)
 	return 0;
 }
 
-static struct sysdev_driver s3c2440_plls169344_drv = {
-	.add	= s3c2440_plls169344_add,
+static struct subsys_interface s3c2440_plls169344_interface = {
+	.name		= "s3c2440_plls169344",
+	.subsys		= &s3c2440_subsys,
+	.add_dev	= s3c2440_plls169344_add,
 };
 
 static int __init s3c2440_pll_16934400(void)
 {
-	return sysdev_driver_register(&s3c2440_sysclass,
-				      &s3c2440_plls169344_drv);
-
+	return subsys_interface_register(&s3c2440_plls169344_interface);
 }
 
 arch_initcall(s3c2440_pll_16934400);
 
-static struct sysdev_driver s3c2442_plls169344_drv = {
-	.add	= s3c2440_plls169344_add,
+static struct subsys_interface s3c2442_plls169344_interface = {
+	.name		= "s3c2442_plls169344",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	= s3c2440_plls169344_add,
 };
 
 static int __init s3c2442_pll_16934400(void)
 {
-	return sysdev_driver_register(&s3c2442_sysclass,
-				      &s3c2442_plls169344_drv);
-
+	return subsys_interface_register(&s3c2442_plls169344_interface);
 }
 
 arch_initcall(s3c2442_pll_16934400);
diff --git a/arch/arm/mach-s3c2440/s3c2440.c b/arch/arm/mach-s3c2440/s3c2440.c
index 37f8cc6aabd4..2b3dddb49af7 100644
--- a/arch/arm/mach-s3c2440/s3c2440.c
+++ b/arch/arm/mach-s3c2440/s3c2440.c
@@ -18,7 +18,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/serial_core.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/syscore_ops.h>
 #include <linux/gpio.h>
 #include <linux/clk.h>
@@ -40,8 +40,8 @@
 #include <plat/gpio-cfg.h>
 #include <plat/gpio-cfg-helpers.h>
 
-static struct sys_device s3c2440_sysdev = {
-	.cls		= &s3c2440_sysclass,
+static struct device s3c2440_dev = {
+	.bus		= &s3c2440_subsys,
 };
 
 int __init s3c2440_init(void)
@@ -63,7 +63,7 @@ int __init s3c2440_init(void)
 
 	/* register our system device for everything else */
 
-	return sysdev_register(&s3c2440_sysdev);
+	return device_register(&s3c2440_dev);
 }
 
 void __init s3c2440_map_io(void)
diff --git a/arch/arm/mach-s3c2440/s3c2442.c b/arch/arm/mach-s3c2440/s3c2442.c
index 2c822e09392f..9ab15cdea706 100644
--- a/arch/arm/mach-s3c2440/s3c2442.c
+++ b/arch/arm/mach-s3c2440/s3c2442.c
@@ -28,7 +28,6 @@
 #include <linux/errno.h>
 #include <linux/err.h>
 #include <linux/device.h>
-#include <linux/sysdev.h>
 #include <linux/syscore_ops.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
@@ -123,7 +122,7 @@ static struct clk s3c2442_clk_cam_upll = {
 	},
 };
 
-static int s3c2442_clk_add(struct sys_device *sysdev)
+static int s3c2442_clk_add(struct device *dev)
 {
 	struct clk *clock_upll;
 	struct clk *clock_h;
@@ -149,20 +148,22 @@ static int s3c2442_clk_add(struct sys_device *sysdev)
 	return 0;
 }
 
-static struct sysdev_driver s3c2442_clk_driver = {
-	.add	= s3c2442_clk_add,
+static struct subsys_interface s3c2442_clk_interface = {
+	.name		= "s3c2442_clk",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	 s3c2442_clk_add,
 };
 
 static __init 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);
 
 
-static struct sys_device s3c2442_sysdev = {
-	.cls		= &s3c2442_sysclass,
+static struct device s3c2442_dev = {
+	.bus		= &s3c2442_subsys,
 };
 
 int __init s3c2442_init(void)
@@ -175,7 +176,7 @@ int __init s3c2442_init(void)
 	register_syscore_ops(&s3c244x_pm_syscore_ops);
 	register_syscore_ops(&s3c24xx_irq_syscore_ops);
 
-	return sysdev_register(&s3c2442_sysdev);
+	return device_register(&s3c2442_dev);
 }
 
 void __init s3c2442_map_io(void)
diff --git a/arch/arm/mach-s3c2440/s3c244x-clock.c b/arch/arm/mach-s3c2440/s3c244x-clock.c
index 7f5ea0a169a5..b3fdbdda3d5f 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 struct clk clk_arm = {
 	},
 };
 
-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 @@ static int s3c244x_clk_add(struct sys_device *sysdev)
 	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);
diff --git a/arch/arm/mach-s3c2440/s3c244x-irq.c b/arch/arm/mach-s3c2440/s3c244x-irq.c
index c63e8f26d901..74d3dcf46a48 100644
--- a/arch/arm/mach-s3c2440/s3c244x-irq.c
+++ b/arch/arm/mach-s3c2440/s3c244x-irq.c
@@ -23,7 +23,7 @@
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/io.h>
 
 #include <mach/hardware.h>
@@ -91,7 +91,7 @@ static struct irq_chip s3c_irq_cam = {
 	.irq_ack	= s3c_irq_cam_ack,
 };
 
-static int s3c244x_irq_add(struct sys_device *sysdev)
+static int s3c244x_irq_add(struct device *dev)
 {
 	unsigned int irqno;
 
@@ -114,25 +114,29 @@ static int s3c244x_irq_add(struct sys_device *sysdev)
 	return 0;
 }
 
-static struct sysdev_driver s3c2440_irq_driver = {
-	.add		= s3c244x_irq_add,
+static struct subsys_interface s3c2440_irq_interface = {
+	.name		= "s3c2440_irq",
+	.subsys		= &s3c2440_subsys,
+	.add_dev	= s3c244x_irq_add,
 };
 
 static int s3c2440_irq_init(void)
 {
-	return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_irq_driver);
+	return subsys_interface_register(&s3c2440_irq_interface);
 }
 
 arch_initcall(s3c2440_irq_init);
 
-static struct sysdev_driver s3c2442_irq_driver = {
-	.add		= s3c244x_irq_add,
+static struct subsys_interface s3c2442_irq_interface = {
+	.name		= "s3c2442_irq",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	= s3c244x_irq_add,
 };
 
 
 static int s3c2442_irq_init(void)
 {
-	return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_irq_driver);
+	return subsys_interface_register(&s3c2442_irq_interface);
 }
 
 arch_initcall(s3c2442_irq_init);
diff --git a/arch/arm/mach-s3c2440/s3c244x.c b/arch/arm/mach-s3c2440/s3c244x.c
index 7e8a23d2098a..36bc60f61d0a 100644
--- a/arch/arm/mach-s3c2440/s3c244x.c
+++ b/arch/arm/mach-s3c2440/s3c244x.c
@@ -18,7 +18,7 @@
 #include <linux/init.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/syscore_ops.h>
 #include <linux/clk.h>
 #include <linux/io.h>
@@ -135,17 +135,19 @@ void __init s3c244x_init_clocks(int xtal)
 	s3c2410_baseclk_add();
 }
 
-/* Since the S3C2442 and S3C2440 share  items, put both sysclasses here */
+/* Since the S3C2442 and S3C2440 share items, put both subsystems here */
 
-struct sysdev_class s3c2440_sysclass = {
+struct bus_type s3c2440_subsys = {
 	.name		= "s3c2440-core",
+	.dev_name	= "s3c2440-core",
 };
 
-struct sysdev_class s3c2442_sysclass = {
+struct bus_type s3c2442_subsys = {
 	.name		= "s3c2442-core",
+	.dev_name	= "s3c2442-core",
 };
 
-/* need to register class before we actually register the device, and
+/* need to register the subsystem before we actually register the device, and
  * we also need to ensure that it has been initialised before any of the
  * drivers even try to use it (even if not on an s3c2440 based system)
  * as a driver which may support both 2410 and 2440 may try and use it.
@@ -153,14 +155,14 @@ struct sysdev_class s3c2442_sysclass = {
 
 static int __init s3c2440_core_init(void)
 {
-	return sysdev_class_register(&s3c2440_sysclass);
+	return subsys_system_register(&s3c2440_subsys, NULL);
 }
 
 core_initcall(s3c2440_core_init);
 
 static int __init s3c2442_core_init(void)
 {
-	return sysdev_class_register(&s3c2442_sysclass);
+	return subsys_system_register(&s3c2442_subsys, NULL);
 }
 
 core_initcall(s3c2442_core_init);