ARM: EXYNOS: Migrate clock support to common clock framework

Remove Samsung specific clock support in Exynos4/5 and migrate to
use common clock framework.

Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Tested-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 3b186ea..ec4098e 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -12,7 +12,10 @@
 #ifndef __ARCH_ARM_MACH_EXYNOS_COMMON_H
 #define __ARCH_ARM_MACH_EXYNOS_COMMON_H
 
+#include <linux/of.h>
+
 extern void mct_init(void);
+void exynos_init_time(void);
 
 struct map_desc;
 void exynos_init_io(struct map_desc *mach_desc, int size);
@@ -22,6 +25,10 @@
 void exynos5_restart(char mode, const char *cmd);
 void exynos_init_late(void);
 
+/* ToDo: remove these after migrating legacy exynos4 platforms to dt */
+void exynos4_clk_init(struct device_node *np);
+void exynos4_clk_register_fixed_ext(unsigned long, unsigned long);
+
 #ifdef CONFIG_PM_GENERIC_DOMAINS
 int exynos_pm_late_initcall(void);
 #else