1 files changed, 11 insertions, 6 deletions

diff --git a/arch/arc/kernel/intc-compact.c b/arch/arc/kernel/intc-compact.c
index 224d1c3aa9c4..c5cceca36118 100644
--- a/arch/arc/kernel/intc-compact.c
+++ b/arch/arc/kernel/intc-compact.c
@@ -14,6 +14,8 @@
 #include <linux/irqchip.h>
 #include <asm/irq.h>
 
+#define TIMER0_IRQ      3       /* Fixed by ISA */
+
 /*
  * Early Hardware specific Interrupt setup
  * -Platform independent, needed for each CPU (not foldable into init_IRQ)
@@ -79,8 +81,9 @@ static struct irq_chip onchip_intc = {
 static int arc_intc_domain_map(struct irq_domain *d, unsigned int irq,
                                irq_hw_number_t hw)
 {
-        switch (irq) {
+        switch (hw) {
         case TIMER0_IRQ:
+                irq_set_percpu_devid(irq);
                 irq_set_chip_and_handler(irq, &onchip_intc, handle_percpu_irq);
                 break;
         default:
@@ -94,21 +97,23 @@ static const struct irq_domain_ops arc_intc_domain_ops = {
         .map = arc_intc_domain_map,
 };
 
-static struct irq_domain *root_domain;
-
 static int __init
 init_onchip_IRQ(struct device_node *intc, struct device_node *parent)
 {
+        struct irq_domain *root_domain;
+
         if (parent)
                 panic("DeviceTree incore intc not a root irq controller\n");
 
-        root_domain = irq_domain_add_legacy(intc, NR_CPU_IRQS, 0, 0,
+        root_domain = irq_domain_add_linear(intc, NR_CPU_IRQS,
                                             &arc_intc_domain_ops, NULL);
-
         if (!root_domain)
                 panic("root irq domain not avail\n");
 
-        /* with this we don't need to export root_domain */
+        /*
+         * Needed for primary domain lookup to succeed
+         * This is a primary irqchip, and can never have a parent
+         */
         irq_set_default_host(root_domain);
 
         return 0;