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| author | afzal mohammed <afzal.mohd.ma@gmail.com> | 2020-03-01 06:56:55 +0530 |
|---|---|---|
| committer | Greg Ungerer <gerg@linux-m68k.org> | 2020-03-23 12:01:19 +1000 |
| commit | ba000760eb0f182e6ef04faca70bb9737a9674b4 (patch) | |
| tree | 0e0aa627224a6b37d4204ee2e8ad092d48ede5b1 /arch/m68k/coldfire/timers.c | |
| parent | 16fbf79b0f83bc752cee8589279f1ebfe57b3b6e (diff) | |
| download | linux-ba000760eb0f182e6ef04faca70bb9737a9674b4.tar.gz linux-ba000760eb0f182e6ef04faca70bb9737a9674b4.tar.bz2 linux-ba000760eb0f182e6ef04faca70bb9737a9674b4.zip | |
m68k: Replace setup_irq() by request_irq()
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Tested-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Diffstat (limited to 'arch/m68k/coldfire/timers.c')
| -rw-r--r-- | arch/m68k/coldfire/timers.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/arch/m68k/coldfire/timers.c b/arch/m68k/coldfire/timers.c index 227aa5d13709..b8301fddf901 100644 --- a/arch/m68k/coldfire/timers.c +++ b/arch/m68k/coldfire/timers.c @@ -82,14 +82,6 @@ static irqreturn_t mcftmr_tick(int irq, void *dummy) /***************************************************************************/ -static struct irqaction mcftmr_timer_irq = { - .name = "timer", - .flags = IRQF_TIMER, - .handler = mcftmr_tick, -}; - -/***************************************************************************/ - static u64 mcftmr_read_clk(struct clocksource *cs) { unsigned long flags; @@ -118,6 +110,8 @@ static struct clocksource mcftmr_clk = { void hw_timer_init(irq_handler_t handler) { + int r; + __raw_writew(MCFTIMER_TMR_DISABLE, TA(MCFTIMER_TMR)); mcftmr_cycles_per_jiffy = FREQ / HZ; /* @@ -134,7 +128,11 @@ void hw_timer_init(irq_handler_t handler) timer_interrupt = handler; init_timer_irq(); - setup_irq(MCF_IRQ_TIMER, &mcftmr_timer_irq); + r = request_irq(MCF_IRQ_TIMER, mcftmr_tick, IRQF_TIMER, "timer", NULL); + if (r) { + pr_err("Failed to request irq %d (timer): %pe\n", MCF_IRQ_TIMER, + ERR_PTR(r)); + } #ifdef CONFIG_HIGHPROFILE coldfire_profile_init(); @@ -170,14 +168,10 @@ irqreturn_t coldfire_profile_tick(int irq, void *dummy) /***************************************************************************/ -static struct irqaction coldfire_profile_irq = { - .name = "profile timer", - .flags = IRQF_TIMER, - .handler = coldfire_profile_tick, -}; - void coldfire_profile_init(void) { + int ret; + printk(KERN_INFO "PROFILE: lodging TIMER2 @ %dHz as profile timer\n", PROFILEHZ); @@ -188,7 +182,12 @@ void coldfire_profile_init(void) __raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 | MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, PA(MCFTIMER_TMR)); - setup_irq(MCF_IRQ_PROFILER, &coldfire_profile_irq); + ret = request_irq(MCF_IRQ_PROFILER, coldfire_profile_tick, IRQF_TIMER, + "profile timer", NULL); + if (ret) { + pr_err("Failed to request irq %d (profile timer): %pe\n", + MCF_IRQ_PROFILER, ERR_PTR(ret)); + } } /***************************************************************************/ |