microblaze: 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>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index a668348..f8832cf 100644 (file)
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -161,13 +161,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
        return IRQ_HANDLED;
 }
 
-static struct irqaction timer_irqaction = {
-       .handler = timer_interrupt,
-       .flags = IRQF_TIMER,
-       .name = "timer",
-       .dev_id = &clockevent_xilinx_timer,
-};
-
 static __init int xilinx_clockevent_init(void)
 {
        clockevent_xilinx_timer.mult =
@@ -309,7 +302,8 @@ static int __init xilinx_timer_init(struct device_node *timer)
 
        freq_div_hz = timer_clock_freq / HZ;
 
-       ret = setup_irq(irq, &timer_irqaction);
+       ret = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer",
+                         &clockevent_xilinx_timer);
        if (ret) {
                pr_err("Failed to setup IRQ");
                return ret;