ARM: at91: PIT: use request_irq instead of setup_irq

We can use the generic request_irq now to register a timer interrupt handler,
instead of the more complex setup_irq.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c
index 0abdcb3..e476474 100644 (file)
--- a/arch/arm/mach-at91/at91sam926x_time.c
+++ b/arch/arm/mach-at91/at91sam926x_time.c
@@ -173,16 +173,10 @@ static irqreturn_t at91sam926x_pit_interrupt(int irq, void *dev_id)
        return IRQ_NONE;
 }
 
-static struct irqaction at91sam926x_pit_irq = {
-       .name           = "at91_tick",
-       .flags          = IRQF_SHARED | IRQF_TIMER | IRQF_IRQPOLL,
-       .handler        = at91sam926x_pit_interrupt,
-};
-
 /*
  * Set up both clocksource and clockevent support.
  */
-static void __init at91sam926x_pit_common_init(void)
+static void __init at91sam926x_pit_common_init(unsigned int pit_irq)
 {
        unsigned long   pit_rate;
        unsigned        bits;
@@ -208,7 +202,9 @@ static void __init at91sam926x_pit_common_init(void)
        clocksource_register_hz(&pit_clk, pit_rate);
 
        /* Set up irq handler */
-       ret = setup_irq(at91sam926x_pit_irq.irq, &at91sam926x_pit_irq);
+       ret = request_irq(pit_irq, at91sam926x_pit_interrupt,
+                         IRQF_SHARED | IRQF_TIMER | IRQF_IRQPOLL,
+                         "at91_tick", pit_base_addr);
        if (ret)
                panic(pr_fmt("Unable to setup IRQ\n"));
 
@@ -239,9 +235,7 @@ static void __init at91sam926x_pit_dt_init(struct device_node *node)
        if (!irq)
                panic(pr_fmt("Unable to get IRQ from DT\n"));
 
-       at91sam926x_pit_irq.irq = irq;
-
-       at91sam926x_pit_common_init();
+       at91sam926x_pit_common_init(irq);
 }
 CLOCKSOURCE_OF_DECLARE(at91sam926x_pit, "atmel,at91sam9260-pit",
                       at91sam926x_pit_dt_init);
@@ -252,9 +246,7 @@ void __init at91sam926x_pit_init(void)
        if (IS_ERR(mck))
                panic(pr_fmt("Unable to get mck clk\n"));
 
-       at91sam926x_pit_irq.irq = NR_IRQS_LEGACY + AT91_ID_SYS;
-
-       at91sam926x_pit_common_init();
+       at91sam926x_pit_common_init(NR_IRQS_LEGACY + AT91_ID_SYS);
 }
 
 void __init at91sam926x_ioremap_pit(u32 addr)