[ARM] dyntick: Remove obsolete and unused ARM dyntick support

dyntick is superseded by the clocksource/clockevent infrastructure,
using the NO_HZ configuration option.  No one implements dyntick on
ARM anymore, so it's pointless keeping it around.  Remove dyntick
support.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

3 files changed, 0 insertions, 39 deletions

diff --git a/include/asm-arm/dyntick.h b/include/asm-arm/dyntick.h
deleted file mode 100644
index 19fab2d2b760..000000000000
--- a/include/asm-arm/dyntick.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASMARM_DYNTICK_H
-#define _ASMARM_DYNTICK_H
-
-#include <asm/mach/time.h>
-
-#endif /* _ASMARM_DYNTICK_H */
diff --git a/include/asm-arm/hw_irq.h b/include/asm-arm/hw_irq.h
index 98d594a973d6..f1a08a500604 100644
--- a/include/asm-arm/hw_irq.h
+++ b/include/asm-arm/hw_irq.h
@@ -6,15 +6,4 @@
 
 #include <asm/mach/irq.h>
 
-#if defined(CONFIG_NO_IDLE_HZ)
-# include <asm/dyntick.h>
-# define handle_dynamic_tick(action)                                    \
-        if (!(action->flags & IRQF_TIMER) && system_timer->dyn_tick) {  \
-                write_seqlock(&xtime_lock);                             \
-                if (system_timer->dyn_tick->state & DYN_TICK_ENABLED)   \
-                        system_timer->dyn_tick->handler(irq, NULL);     \
-                write_sequnlock(&xtime_lock);                           \
-        }
-#endif
-
 #endif
diff --git a/include/asm-arm/mach/time.h b/include/asm-arm/mach/time.h
index 5dc357013b79..2fd36ea0130d 100644
--- a/include/asm-arm/mach/time.h
+++ b/include/asm-arm/mach/time.h
@@ -41,30 +41,8 @@ struct sys_timer {
 #ifndef CONFIG_GENERIC_TIME
         unsigned long           (*offset)(void);
 #endif
-
-#ifdef CONFIG_NO_IDLE_HZ
-        struct dyn_tick_timer   *dyn_tick;
-#endif
-};
-
-#ifdef CONFIG_NO_IDLE_HZ
-
-#define DYN_TICK_ENABLED        (1 << 1)
-
-struct dyn_tick_timer {
-        spinlock_t      lock;
-        unsigned int    state;                  /* Current state */
-        int             (*enable)(void);        /* Enables dynamic tick */
-        int             (*disable)(void);       /* Disables dynamic tick */
-        void            (*reprogram)(unsigned long); /* Reprograms the timer */
-        int             (*handler)(int, void *);
 };
 
-void timer_dyn_reprogram(void);
-#else
-#define timer_dyn_reprogram()   do { } while (0)
-#endif
-
 extern struct sys_timer *system_timer;
 extern void timer_tick(void);