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-rw-r--r--arch/xtensa/kernel/irq.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index 3cef58e28332..7d49730f4056 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -123,6 +123,14 @@ unsigned xtensa_map_ext_irq(unsigned ext_irq)
return XCHAL_NUM_INTERRUPTS;
}
+unsigned xtensa_get_ext_irq_no(unsigned irq)
+{
+ unsigned mask = (XCHAL_INTTYPE_MASK_EXTERN_EDGE |
+ XCHAL_INTTYPE_MASK_EXTERN_LEVEL) &
+ ((1u << irq) - 1);
+ return hweight32(mask);
+}
+
void __init init_IRQ(void)
{
#ifdef CONFIG_OF