Merge branch 'timers-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'timers-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  mips: Fix i8253 clockevent fallout
  i8253: Cleanup outb/inb magic
  arm: Footbridge: Use common i8253 clockevent
  mips: Use common i8253 clockevent
  x86: Use common i8253 clockevent
  i8253: Create common clockevent implementation
  i8253: Export i8253_lock unconditionally
  pcpskr: MIPS: Make config dependencies finer grained
  pcspkr: Cleanup Kconfig dependencies
  i8253: Move remaining content and delete asm/i8253.h
  i8253: Consolidate definitions of PIT_LATCH
  x86: i8253: Consolidate definitions of global_clock_event
  i8253: Alpha, PowerPC: Remove unused asm/8253pit.h
  alpha: i8253: Cleanup remaining users of i8253pit.h
  i8253: Remove I8253_LOCK config
  i8253: Make pcsp sound driver use the shared i8253_lock
  i8253: Make pcspkr input driver use the shared i8253_lock
  i8253: Consolidate all kernel definitions of i8253_lock
  i8253: Unify all kernel declarations of i8253_lock
  i8253: Create linux/i8253.h and use it in all 8253 related files

3 files changed, 5 insertions, 70 deletions

diff --git a/arch/arm/include/asm/i8253.h b/arch/arm/include/asm/i8253.h
deleted file mode 100644
index 70656b69d5c..00000000000
--- a/arch/arm/include/asm/i8253.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef __ASMARM_I8253_H
-#define __ASMARM_I8253_H
-
-/* i8253A PIT registers */
-#define PIT_MODE	0x43
-#define PIT_CH0		0x40
-
-#define PIT_LATCH	((PIT_TICK_RATE + HZ / 2) / HZ)
-
-extern raw_spinlock_t i8253_lock;
-
-#define outb_pit	outb_p
-#define inb_pit		inb_p
-
-#endif
diff --git a/arch/arm/mach-footbridge/Kconfig b/arch/arm/mach-footbridge/Kconfig
index 46adca068f2..dc26fff22cf 100644
--- a/arch/arm/mach-footbridge/Kconfig
+++ b/arch/arm/mach-footbridge/Kconfig
@@ -5,6 +5,7 @@ menu "Footbridge Implementations"
 config ARCH_CATS
 	bool "CATS"
 	select CLKSRC_I8253
+	select CLKEVT_I8253
 	select FOOTBRIDGE_HOST
 	select ISA
 	select ISA_DMA
diff --git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c
index 7020f1a3fec..c40bb415f4b 100644
--- a/arch/arm/mach-footbridge/isa-timer.c
+++ b/arch/arm/mach-footbridge/isa-timer.c
@@ -5,64 +5,18 @@
  *  Copyright (C) 1998 Phil Blundell
  */
 #include <linux/clockchips.h>
-#include <linux/clocksource.h>
+#include <linux/i8253.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
-#include <linux/io.h>
 #include <linux/spinlock.h>
 #include <linux/timex.h>
 
 #include <asm/irq.h>
-#include <asm/i8253.h>
 #include <asm/mach/time.h>
 
 #include "common.h"
 
-DEFINE_RAW_SPINLOCK(i8253_lock);
-
-static void pit_set_mode(enum clock_event_mode mode,
-	struct clock_event_device *evt)
-{
-	unsigned long flags;
-
-	raw_local_irq_save(flags);
-
-	switch (mode) {
-	case CLOCK_EVT_MODE_PERIODIC:
-		outb_p(0x34, PIT_MODE);
-		outb_p(PIT_LATCH & 0xff, PIT_CH0);
-		outb_p(PIT_LATCH >> 8, PIT_CH0);
-		break;
-
-	case CLOCK_EVT_MODE_SHUTDOWN:
-	case CLOCK_EVT_MODE_UNUSED:
-		outb_p(0x30, PIT_MODE);
-		outb_p(0, PIT_CH0);
-		outb_p(0, PIT_CH0);
-		break;
-
-	case CLOCK_EVT_MODE_ONESHOT:
-	case CLOCK_EVT_MODE_RESUME:
-		break;
-	}
-	local_irq_restore(flags);
-}
-
-static int pit_set_next_event(unsigned long delta,
-	struct clock_event_device *evt)
-{
-	return 0;
-}
-
-static struct clock_event_device pit_ce = {
-	.name		= "pit",
-	.features	= CLOCK_EVT_FEAT_PERIODIC,
-	.set_mode	= pit_set_mode,
-	.set_next_event	= pit_set_next_event,
-	.shift		= 32,
-};
-
 static irqreturn_t pit_timer_interrupt(int irq, void *dev_id)
 {
 	struct clock_event_device *ce = dev_id;
@@ -74,20 +28,15 @@ static struct irqaction pit_timer_irq = {
 	.name		= "pit",
 	.handler	= pit_timer_interrupt,
 	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
-	.dev_id		= &pit_ce,
+	.dev_id		= &i8253_clockevent,
 };
 
 static void __init isa_timer_init(void)
 {
-	pit_ce.cpumask = cpumask_of(smp_processor_id());
-	pit_ce.mult = div_sc(PIT_TICK_RATE, NSEC_PER_SEC, pit_ce.shift);
-	pit_ce.max_delta_ns = clockevent_delta2ns(0x7fff, &pit_ce);
-	pit_ce.min_delta_ns = clockevent_delta2ns(0x000f, &pit_ce);
-
 	clocksource_i8253_init();
 
-	setup_irq(pit_ce.irq, &pit_timer_irq);
-	clockevents_register_device(&pit_ce);
+	setup_irq(i8253_clockevent.irq, &pit_timer_irq);
+	clockevent_i8253_init(false);
 }
 
 struct sys_timer isa_timer = {