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>

arch/arm/include/asm/mach/time.h

@@ -10,7 +10,7 @@
 #ifndef __ASM_ARM_MACH_TIME_H
 #define __ASM_ARM_MACH_TIME_H
 
-#include <linux/sysdev.h>
+#include <linux/device.h>
 
 /*
  * This is our kernel timer structure.

arch/arm/mach-exynos/cpu.c

@@ -9,7 +9,7 @@
 */
 
 #include <linux/sched.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
@@ -243,17 +243,18 @@ void __init exynos4_init_irq(void)
 	s5p_init_irq(NULL, 0);
 }
 
-struct sysdev_class exynos4_sysclass = {
-	.name	= "exynos4-core",
+struct bus_type exynos4_subsys = {
+	.name		= "exynos4-core",
+	.dev_name	= "exynos4-core",
 };
 
-static struct sys_device exynos4_sysdev = {
-	.cls	= &exynos4_sysclass,
+static struct device exynos4_dev = {
+	.bus	= &exynos4_subsys,
 };
 
 static int __init exynos4_core_init(void)
 {
-	return sysdev_class_register(&exynos4_sysclass);
+	return subsys_system_register(&exynos4_subsys, NULL);
 }
 core_initcall(exynos4_core_init);
 
@@ -294,5 +295,5 @@ int __init exynos_init(void)
 	if (soc_is_exynos4210() || soc_is_exynos4212() || soc_is_exynos4412())
 		s5p_reset_hook = exynos4_sw_reset;
 
-	return sysdev_register(&exynos4_sysdev);
+	return device_register(&exynos4_dev);
 }

arch/arm/mach-exynos/pm.c

@@ -205,7 +205,7 @@ static void exynos4_pm_prepare(void)
 
 }
 
-static int exynos4_pm_add(struct sys_device *sysdev)
+static int exynos4_pm_add(struct device *dev)
 {
 	pm_cpu_prep = exynos4_pm_prepare;
 	pm_cpu_sleep = exynos4_cpu_suspend;
@@ -301,8 +301,10 @@ static void exynos4_restore_pll(void)
 	} while (epll_wait || vpll_wait);
 }
 
-static struct sysdev_driver exynos4_pm_driver = {
-	.add		= exynos4_pm_add,
+static struct subsys_interface exynos4_pm_interface = {
+	.name		= "exynos4_pm",
+	.subsys		= &exynos4_subsys,
+	.add_dev	= exynos4_pm_add,
 };
 
 static __init int exynos4_pm_drvinit(void)
@@ -325,7 +327,7 @@ static __init int exynos4_pm_drvinit(void)
 		clk_put(pll_base);
 	}
 
-	return sysdev_driver_register(&exynos4_sysclass, &exynos4_pm_driver);
+	return subsys_interface_register(&exynos4_pm_interface);
 }
 arch_initcall(exynos4_pm_drvinit);
 

arch/arm/mach-s3c2410/cpu-freq.c

@@ -16,7 +16,7 @@
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/cpufreq.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/io.h>
@@ -115,24 +115,25 @@ static struct s3c_cpufreq_info s3c2410_cpufreq_info = {
 	.debug_io_show	= s3c_cpufreq_debugfs_call(s3c2410_iotiming_debugfs),
 };
 
-static int s3c2410_cpufreq_add(struct sys_device *sysdev)
+static int s3c2410_cpufreq_add(struct device *dev)
 {
 	return s3c_cpufreq_register(&s3c2410_cpufreq_info);
 }
 
-static struct sysdev_driver s3c2410_cpufreq_driver = {
-	.add		= s3c2410_cpufreq_add,
+static struct subsys_interface s3c2410_cpufreq_interface = {
+	.name		= "s3c2410_cpufreq",
+	.subsys		= &s3c2410_subsys,
+	.add_dev	= s3c2410_cpufreq_add,
 };
 
 static int __init s3c2410_cpufreq_init(void)
 {
-	return sysdev_driver_register(&s3c2410_sysclass,
-				      &s3c2410_cpufreq_driver);
+	return subsys_interface_register(&s3c2410_cpufreq_interface);
 }
 
 arch_initcall(s3c2410_cpufreq_init);
 
-static int s3c2410a_cpufreq_add(struct sys_device *sysdev)
+static int s3c2410a_cpufreq_add(struct device *dev)
 {
 	/* alter the maximum freq settings for S3C2410A. If a board knows
 	 * it only has a maximum of 200, then it should register its own
@@ -143,17 +144,18 @@ static int s3c2410a_cpufreq_add(struct sys_device *sysdev)
 	s3c2410_cpufreq_info.max.pclk =  66500000;
 	s3c2410_cpufreq_info.name = "s3c2410a";
 
-	return s3c2410_cpufreq_add(sysdev);
+	return s3c2410_cpufreq_add(dev);
 }
 
-static struct sysdev_driver s3c2410a_cpufreq_driver = {
-	.add		= s3c2410a_cpufreq_add,
+static struct subsys_interface s3c2410a_cpufreq_interface = {
+	.name		= "s3c2410a_cpufreq",
+	.subsys		= &s3c2410a_subsys,
+	.add_dev	= s3c2410a_cpufreq_add,
 };
 
 static int __init s3c2410a_cpufreq_init(void)
 {
-	return sysdev_driver_register(&s3c2410a_sysclass,
-				      &s3c2410a_cpufreq_driver);
+	return subsys_interface_register(&s3c2410a_cpufreq_interface);
 }
 
 arch_initcall(s3c2410a_cpufreq_init);

arch/arm/mach-s3c2410/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>
@@ -132,46 +132,52 @@ static struct s3c24xx_dma_order __initdata s3c2410_dma_order = {
 	},
 };
 
-static int __init s3c2410_dma_add(struct sys_device *sysdev)
+static int __init s3c2410_dma_add(struct device *dev)
 {
 	s3c2410_dma_init();
 	s3c24xx_dma_order_set(&s3c2410_dma_order);
 	return s3c24xx_dma_init_map(&s3c2410_dma_sel);
 }
 
 #if defined(CONFIG_CPU_S3C2410)
-static struct sysdev_driver s3c2410_dma_driver = {
-	.add	= s3c2410_dma_add,
+static struct subsys_interface s3c2410_dma_interface = {
+	.name		= "s3c2410_dma",
+	.subsys		= &s3c2410_subsys,
+	.add_dev	= s3c2410_dma_add,
 };
 
 static int __init s3c2410_dma_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_dma_driver);
+	return subsys_interface_register(&s3c2410_interface);
 }
 
 arch_initcall(s3c2410_dma_drvinit);
 
-static struct sysdev_driver s3c2410a_dma_driver = {
-	.add	= s3c2410_dma_add,
+static struct subsys_interface s3c2410a_dma_interface = {
+	.name		= "s3c2410a_dma",
+	.subsys		= &s3c2410a_subsys,
+	.add_dev	= s3c2410_dma_add,
 };
 
 static int __init s3c2410a_dma_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2410a_sysclass, &s3c2410a_dma_driver);
+	return subsys_interface_register(&s3c2410a_dma_interface);
 }
 
 arch_initcall(s3c2410a_dma_drvinit);
 #endif
 
 #if defined(CONFIG_CPU_S3C2442)
 /* S3C2442 DMA contains the same selection table as the S3C2410 */
-static struct sysdev_driver s3c2442_dma_driver = {
-	.add	= s3c2410_dma_add,
+static struct subsys_interface s3c2442_dma_interface = {
+	.name		= "s3c2442_dma",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	= s3c2410_dma_add,
 };
 
 static int __init s3c2442_dma_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_dma_driver);
+	return subsys_interface_register(&s3c2442_dma_interface);
 }
 
 arch_initcall(s3c2442_dma_drvinit);

arch/arm/mach-s3c2410/include/mach/dma.h

@@ -13,7 +13,7 @@
 #ifndef __ASM_ARCH_DMA_H
 #define __ASM_ARCH_DMA_H __FILE__
 
-#include <linux/sysdev.h>
+#include <linux/device.h>
 
 #define MAX_DMA_TRANSFER_SIZE   0x100000 /* Data Unit is half word  */
 
@@ -202,7 +202,7 @@ struct s3c2410_dma_chan {
 	struct s3c2410_dma_buf	*end;		/* end of queue */
 
 	/* system device */
-	struct sys_device	dev;
+	struct device	dev;
 };
 
 typedef unsigned long dma_device_t;

arch/arm/mach-s3c2410/pll.c

@@ -25,7 +25,7 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/list.h>
 #include <linux/clk.h>
 #include <linux/err.h>
@@ -66,30 +66,34 @@ static struct cpufreq_frequency_table pll_vals_12MHz[] = {
     { .frequency = 270000000, .index = PLLVAL(127, 1, 1),  },
 };
 
-static int s3c2410_plls_add(struct sys_device *dev)
+static int s3c2410_plls_add(struct device *dev)
 {
 	return s3c_plltab_register(pll_vals_12MHz, ARRAY_SIZE(pll_vals_12MHz));
 }
 
-static struct sysdev_driver s3c2410_plls_drv = {
-	.add	= s3c2410_plls_add,
+static struct subsys_interface s3c2410_plls_interface = {
+	.name		= "s3c2410_plls",
+	.subsys		= &s3c2410_subsys,
+	.add_dev	= s3c2410_plls_add,
 };
 
 static int __init s3c2410_pll_init(void)
 {
-	return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_plls_drv);
+	return subsys_interface_register(&s3c2410_plls_interface);
 
 }
 
 arch_initcall(s3c2410_pll_init);
 
-static struct sysdev_driver s3c2410a_plls_drv = {
-	.add	= s3c2410_plls_add,
+static struct subsys_interface s3c2410a_plls_interface = {
+	.name		= "s3c2410a_plls",
+	.subsys		= &s3c2410a_subsys,
+	.add_dev	= s3c2410_plls_add,
 };
 
 static int __init s3c2410a_pll_init(void)
 {
-	return sysdev_driver_register(&s3c2410a_sysclass, &s3c2410a_plls_drv);
+	return subsys_interface_register(&s3c2410a_plls_interface);
 }
 
 arch_initcall(s3c2410a_pll_init);

arch/arm/mach-s3c2410/pm.c

@@ -24,7 +24,7 @@
 #include <linux/suspend.h>
 #include <linux/errno.h>
 #include <linux/time.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
 #include <linux/syscore_ops.h>
 #include <linux/gpio.h>
 #include <linux/io.h>
@@ -111,7 +111,7 @@ struct syscore_ops s3c2410_pm_syscore_ops = {
 	.resume		= s3c2410_pm_resume,
 };
 
-static int s3c2410_pm_add(struct sys_device *dev)
+static int s3c2410_pm_add(struct device *dev)
 {
 	pm_cpu_prep = s3c2410_pm_prepare;
 	pm_cpu_sleep = s3c2410_cpu_suspend;
@@ -120,52 +120,60 @@ static int s3c2410_pm_add(struct sys_device *dev)
 }
 
 #if defined(CONFIG_CPU_S3C2410)
-static struct sysdev_driver s3c2410_pm_driver = {
-	.add		= s3c2410_pm_add,
+static struct subsys_interface s3c2410_pm_interface = {
+	.name		= "s3c2410_pm",
+	.subsys		= &s3c2410_subsys,
+	.add_dev	= s3c2410_pm_add,
 };
 
 /* register ourselves */
 
 static int __init s3c2410_pm_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_pm_driver);
+	return subsys_interface_register(&s3c2410_pm_interface);
 }
 
 arch_initcall(s3c2410_pm_drvinit);
 
-static struct sysdev_driver s3c2410a_pm_driver = {
-	.add		= s3c2410_pm_add,
+static struct subsys_interface s3c2410a_pm_interface = {
+	.name		= "s3c2410a_pm",
+	subsys		= &s3c2410a_subsys,
+	.add_dev	= s3c2410_pm_add,
 };
 
 static int __init s3c2410a_pm_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2410a_sysclass, &s3c2410a_pm_driver);
+	return subsys_interface_register(&s3c2410a_pm_interface);
 }
 
 arch_initcall(s3c2410a_pm_drvinit);
 #endif
 
 #if defined(CONFIG_CPU_S3C2440)
-static struct sysdev_driver s3c2440_pm_driver = {
-	.add		= s3c2410_pm_add,
+static struct subsys_interface s3c2440_pm_interface = {
+	.name		= "s3c2440_pm",
+	.subsys		= &s3c2440_subsys,
+	.add_dev	= s3c2410_pm_add,
 };
 
 static int __init s3c2440_pm_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_pm_driver);
+	return subsys_interface_register(&s3c2440_pm_interface);
 }
 
 arch_initcall(s3c2440_pm_drvinit);
 #endif
 
 #if defined(CONFIG_CPU_S3C2442)
-static struct sysdev_driver s3c2442_pm_driver = {
-	.add		= s3c2410_pm_add,
+static struct subsys_interface s3c2442_pm_interface = {
+	.name		= "s3c2442_pm",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	= s3c2410_pm_add,
 };
 
 static int __init s3c2442_pm_drvinit(void)
 {
-	return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_pm_driver);
+	return subsys_interface_register(&s3c2442_pm_interface);
 }
 
 arch_initcall(s3c2442_pm_drvinit);