ARM: convert arm/arm64 arch timer to use CLKSRC_OF init

This converts arm and arm64 to use CLKSRC_OF DT based initialization for
the arch timer. A new function arch_timer_arch_init is added to allow for
arch specific setup.

This has a side effect of enabling sched_clock on omap5 and exynos5. There
should not be any reason not to use the arch timers for sched_clock.

Signed-off-by: Rob Herring <[email protected]>
Cc: Russell King <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Tony Lindgren <[email protected]>
Cc: Simon Horman <[email protected]>
Cc: Magnus Damm <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: John Stultz <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Acked-by: Santosh Shilimkar <[email protected]>

1 files changed, 2 insertions, 5 deletions

diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c
index 3d16d4dff01b..f321dbeb2379 100644
--- a/arch/arm/mach-shmobile/timer.c
+++ b/arch/arm/mach-shmobile/timer.c
@@ -19,10 +19,8 @@
  *
  */
 #include <linux/platform_device.h>
+#include <linux/clocksource.h>
 #include <linux/delay.h>
-#include <asm/arch_timer.h>
-#include <asm/mach/time.h>
-#include <asm/smp_twd.h>
 
 void __init shmobile_setup_delay(unsigned int max_cpu_core_mhz,
 				 unsigned int mult, unsigned int div)
@@ -63,6 +61,5 @@ void __init shmobile_earlytimer_init(void)
 
 void __init shmobile_timer_init(void)
 {
-	arch_timer_of_register();
-	arch_timer_sched_clock_init();
+	clocksource_of_init();
 }