ARM: EXYNOS: Remove a new bus_type instance for EXYNOS5

A seperate bus_type instance is not required for EXYNOS5. The
existing bus_type instance used with EXYNOS4 is sufficient for
both EXYNOS4 and EXYNOS5. This also solves issue of uninitialized
usage of exynos4_subsys in EXYNOS4 power management code that is
reused for EXYNOS5 also. In addition to that, the existing
exynos4_subsys bus_type is renamed to exynos_subsys to indicate
that it is reused on both EXYNOS4 and EXYNOS5 platforms.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

3 files changed, 8 insertions, 23 deletions

diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index eff4446f5e31..3302a8dca4e0 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -565,30 +565,18 @@ void __init exynos5_init_irq(void)
         s5p_init_irq(NULL, 0);
 }
 
-struct bus_type exynos4_subsys = {
-        .name           = "exynos4-core",
-        .dev_name       = "exynos4-core",
-};
-
-struct bus_type exynos5_subsys = {
-        .name           = "exynos5-core",
-        .dev_name       = "exynos5-core",
+struct bus_type exynos_subsys = {
+        .name           = "exynos-core",
+        .dev_name       = "exynos-core",
 };
 
 static struct device exynos4_dev = {
-        .bus    = &exynos4_subsys,
-};
-
-static struct device exynos5_dev = {
-        .bus    = &exynos5_subsys,
+        .bus    = &exynos_subsys,
 };
 
 static int __init exynos_core_init(void)
 {
-        if (soc_is_exynos5250())
-                return subsys_system_register(&exynos5_subsys, NULL);
-        else
-                return subsys_system_register(&exynos4_subsys, NULL);
+        return subsys_system_register(&exynos_subsys, NULL);
 }
 core_initcall(exynos_core_init);
 
@@ -675,10 +663,7 @@ static int __init exynos_init(void)
 {
         printk(KERN_INFO "EXYNOS: Initializing architecture\n");
 
-        if (soc_is_exynos5250())
-                return device_register(&exynos5_dev);
-        else
-                return device_register(&exynos4_dev);
+        return device_register(&exynos4_dev);
 }
 
 /* uart registration process */
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index 428cfeb57724..7164aa95ad9d 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -275,7 +275,7 @@ static void exynos4_restore_pll(void)
 
 static struct subsys_interface exynos4_pm_interface = {
         .name           = "exynos4_pm",
-        .subsys         = &exynos4_subsys,
+        .subsys         = &exynos_subsys,
         .add_dev        = exynos4_pm_add,
 };
 
diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
index 787ceaca0be8..0721293fad63 100644
--- a/arch/arm/plat-samsung/include/plat/cpu.h
+++ b/arch/arm/plat-samsung/include/plat/cpu.h
@@ -202,7 +202,7 @@ extern struct bus_type s3c2443_subsys;
 extern struct bus_type s3c6410_subsys;
 extern struct bus_type s5p64x0_subsys;
 extern struct bus_type s5pv210_subsys;
-extern struct bus_type exynos4_subsys;
+extern struct bus_type exynos_subsys;
 
 extern void (*s5pc1xx_idle)(void);