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m68knommu: use setup_irq() in ColdFire simple timer

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Use setup_irq() instead of request_irq() to set up system timer
in ColdFire simple timer code. With the old m68knommu irq code this
was safe, but it is not now within the generic irq framework.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Greg Ungerer 2007-07-27 01:09:00 +10:00 committed by Linus Torvalds
parent 374c3f552d
commit c52a2cda56
1 changed files with 10 additions and 3 deletions
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13
arch/m68knommu/platform/5307/timers.c
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@ -3,7 +3,7 @@
/* /*
* timers.c -- generic ColdFire hardware timer support. * timers.c -- generic ColdFire hardware timer support.
* *
* Copyright (C) 1999-2006, Greg Ungerer (gerg@snapgear.com) * Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com)
*/ */
/***************************************************************************/ /***************************************************************************/
@ -13,8 +13,8 @@
#include <linux/param.h> #include <linux/param.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/irq.h>
#include <asm/io.h> #include <asm/io.h>
#include <asm/irq.h>
#include <asm/traps.h> #include <asm/traps.h>
#include <asm/machdep.h> #include <asm/machdep.h>
#include <asm/coldfire.h> #include <asm/coldfire.h>
@ -62,17 +62,24 @@ void coldfire_tick(void)
/***************************************************************************/ /***************************************************************************/
static struct irqaction coldfire_timer_irq = {
.name = "timer",
.flags = IRQF_DISABLED | IRQF_TIMER,
};
static int ticks_per_intr; static int ticks_per_intr;
void coldfire_timer_init(irq_handler_t handler) void coldfire_timer_init(irq_handler_t handler)
{ {
coldfire_timer_irq.handler = handler;
setup_irq(mcf_timervector, &coldfire_timer_irq);
__raw_writew(MCFTIMER_TMR_DISABLE, TA(MCFTIMER_TMR)); __raw_writew(MCFTIMER_TMR_DISABLE, TA(MCFTIMER_TMR));
ticks_per_intr = (MCF_BUSCLK / 16) / HZ; ticks_per_intr = (MCF_BUSCLK / 16) / HZ;
__raw_writetrr(ticks_per_intr - 1, TA(MCFTIMER_TRR)); __raw_writetrr(ticks_per_intr - 1, TA(MCFTIMER_TRR));
__raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 | __raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 |
MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, TA(MCFTIMER_TMR)); MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, TA(MCFTIMER_TMR));
request_irq(mcf_timervector, handler, IRQF_DISABLED, "timer", NULL);
mcf_settimericr(1, mcf_timerlevel); mcf_settimericr(1, mcf_timerlevel);
#ifdef CONFIG_HIGHPROFILE #ifdef CONFIG_HIGHPROFILE