ARM: EXYNOS: move mct driver to drivers/clocksource

Move the multi core timer (mct) driver to from mach-exynos
to drivers/clocksource and update the Kconfig and makefiles.

Cc: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/Kconfig

@@ -1650,7 +1650,7 @@ config LOCAL_TIMERS
 	bool "Use local timer interrupts"
 	depends on SMP
 	default y
-	select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
+	select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !CLKSRC_EXYNOS_MCT)
 	help
 	  Enable support for local timers on SMP platforms, rather then the
 	  legacy IPI broadcast method.  Local timers allows the system

arch/arm/mach-exynos/Kconfig

@@ -79,12 +79,6 @@ config SOC_EXYNOS5440
 	help
 	  Enable EXYNOS5440 SoC support
 
-config EXYNOS4_MCT
-	bool
-	default y
-	help
-	  Use MCT (Multi Core Timer) as kernel timers
-
 config EXYNOS_DEV_DMA
 	bool
 	help

arch/arm/mach-exynos/Makefile

@@ -26,8 +26,6 @@ obj-$(CONFIG_ARCH_EXYNOS)	+= pmu.o
 
 obj-$(CONFIG_SMP)		+= platsmp.o headsmp.o
 
-obj-$(CONFIG_EXYNOS4_MCT)	+= mct.o
-
 obj-$(CONFIG_HOTPLUG_CPU)	+= hotplug.o
 
 # machine support

drivers/clocksource/Kconfig

@@ -67,3 +67,8 @@ config CLKSRC_METAG_GENERIC
 	def_bool y if METAG
 	help
 	  This option enables support for the Meta per-thread timers.
+
+config CLKSRC_EXYNOS_MCT
+	def_bool y if ARCH_EXYNOS
+	help
+	  Support for Multi Core Timer controller on Exynos SoCs.

drivers/clocksource/Makefile

@@ -19,6 +19,7 @@ obj-$(CONFIG_ARCH_BCM2835)	+= bcm2835_timer.o
 obj-$(CONFIG_SUNXI_TIMER)	+= sunxi_timer.o
 obj-$(CONFIG_ARCH_TEGRA)	+= tegra20_timer.o
 obj-$(CONFIG_VT8500_TIMER)	+= vt8500_timer.o
+obj-$(CONFIG_CLKSRC_EXYNOS_MCT)	+= exynos_mct.o
 
 obj-$(CONFIG_ARM_ARCH_TIMER)		+= arm_arch_timer.o
 obj-$(CONFIG_CLKSRC_METAG_GENERIC)	+= metag_generic.o