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authorafzal mohammed <afzal.mohd.ma@gmail.com>2020-03-27 15:44:37 +0300
committerArnd Bergmann <arnd@arndb.de>2020-03-27 16:11:50 +0300
commit2fcf53350810d0e2af9ef57a57957c6c739c5647 (patch)
treedb277e26586ab016db0e0208e4d01d2dfcf4766c /arch/arm/mach-mmp/time.c
parent4c819924f571fb74496c85df2780dc75f8686b68 (diff)
downloadlinux-2fcf53350810d0e2af9ef57a57957c6c739c5647.tar.xz
ARM: mmp: 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 Link: https://lore.kernel.org/r/20200327124437.4239-1-afzal.mohd.ma@gmail.com Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com> Acked-by: Lubomir Rintel <lkundrak@v3.sk> Tested-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-mmp/time.c')
-rw-r--r--arch/arm/mach-mmp/time.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c
index c65cfc1ad99b..049a65f47b42 100644
--- a/arch/arm/mach-mmp/time.c
+++ b/arch/arm/mach-mmp/time.c
@@ -175,13 +175,6 @@ static void __init timer_config(void)
__raw_writel(0x2, mmp_timer_base + TMR_CER);
}
-static struct irqaction timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = timer_interrupt,
- .dev_id = &ckevt,
-};
-
void __init mmp_timer_init(int irq, unsigned long rate)
{
timer_config();
@@ -190,7 +183,9 @@ void __init mmp_timer_init(int irq, unsigned long rate)
ckevt.cpumask = cpumask_of(0);
- setup_irq(irq, &timer_irq);
+ if (request_irq(irq, timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "timer", &ckevt))
+ pr_err("Failed to request irq %d (timer)\n", irq);
clocksource_register_hz(&cksrc, rate);
clockevents_config_and_register(&ckevt, rate, MIN_DELTA, MAX_DELTA);