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Diffstat (limited to 'arch/arm/plat-orion/irq.c')
-rw-r--r--arch/arm/plat-orion/irq.c49
1 files changed, 9 insertions, 40 deletions
diff --git a/arch/arm/plat-orion/irq.c b/arch/arm/plat-orion/irq.c
index d8d638e09f8..2d5b9c1ef38 100644
--- a/arch/arm/plat-orion/irq.c
+++ b/arch/arm/plat-orion/irq.c
@@ -14,52 +14,21 @@
#include <linux/io.h>
#include <plat/irq.h>
-static void orion_irq_mask(struct irq_data *d)
-{
- void __iomem *maskaddr = irq_data_get_irq_chip_data(d);
- u32 mask;
-
- mask = readl(maskaddr);
- mask &= ~(1 << (d->irq & 31));
- writel(mask, maskaddr);
-}
-
-static void orion_irq_unmask(struct irq_data *d)
-{
- void __iomem *maskaddr = irq_data_get_irq_chip_data(d);
- u32 mask;
-
- mask = readl(maskaddr);
- mask |= 1 << (d->irq & 31);
- writel(mask, maskaddr);
-}
-
-static struct irq_chip orion_irq_chip = {
- .name = "orion_irq",
- .irq_mask = orion_irq_mask,
- .irq_mask_ack = orion_irq_mask,
- .irq_unmask = orion_irq_unmask,
-};
-
void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr)
{
- unsigned int i;
+ struct irq_chip_generic *gc;
+ struct irq_chip_type *ct;
/*
* Mask all interrupts initially.
*/
writel(0, maskaddr);
- /*
- * Register IRQ sources.
- */
- for (i = 0; i < 32; i++) {
- unsigned int irq = irq_start + i;
-
- irq_set_chip_and_handler(irq, &orion_irq_chip,
- handle_level_irq);
- irq_set_chip_data(irq, maskaddr);
- irq_set_status_flags(irq, IRQ_LEVEL);
- set_irq_flags(irq, IRQF_VALID);
- }
+ gc = irq_alloc_generic_chip("orion_irq", 1, irq_start, maskaddr,
+ handle_level_irq);
+ ct = gc->chip_types;
+ ct->chip.irq_mask = irq_gc_mask_clr_bit;
+ ct->chip.irq_unmask = irq_gc_mask_set_bit;
+ irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_MASK_CACHE,
+ IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE);
}