diff options
Diffstat (limited to 'arch/arc/kernel/irq.c')
| -rw-r--r-- | arch/arc/kernel/irq.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/arch/arc/kernel/irq.c b/arch/arc/kernel/irq.c index 84ce5317d9fc..dd4b7e32ad4f 100644 --- a/arch/arc/kernel/irq.c +++ b/arch/arc/kernel/irq.c @@ -11,6 +11,8 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/irqdomain.h> +#include <linux/irqchip.h> +#include "../../drivers/irqchip/irqchip.h" #include <asm/sections.h> #include <asm/irq.h> #include <asm/mach_desc.h> @@ -97,13 +99,11 @@ static const struct irq_domain_ops arc_intc_domain_ops = { static struct irq_domain *root_domain; -void __init init_onchip_IRQ(void) +static int __init +init_onchip_IRQ(struct device_node *intc, struct device_node *parent) { - struct device_node *intc = NULL; - - intc = of_find_compatible_node(NULL, NULL, "snps,arc700-intc"); - if (!intc) - panic("DeviceTree Missing incore intc\n"); + if (parent) + panic("DeviceTree incore intc not a root irq controller\n"); root_domain = irq_domain_add_legacy(intc, NR_IRQS, 0, 0, &arc_intc_domain_ops, NULL); @@ -113,8 +113,12 @@ void __init init_onchip_IRQ(void) /* with this we don't need to export root_domain */ irq_set_default_host(root_domain); + + return 0; } +IRQCHIP_DECLARE(arc_intc, "snps,arc700-intc", init_onchip_IRQ); + /* * Late Interrupt system init called from start_kernel for Boot CPU only * @@ -123,12 +127,13 @@ void __init init_onchip_IRQ(void) */ void __init init_IRQ(void) { - init_onchip_IRQ(); - /* Any external intc can be setup here */ if (machine_desc->init_irq) machine_desc->init_irq(); + /* process the entire interrupt tree in one go */ + irqchip_init(); + #ifdef CONFIG_SMP /* Master CPU can initialize it's side of IPI */ if (machine_desc->init_smp) |