sh: intc: initial irqdomain support.

Trivial support for irq domains, using either a linear map or radix tree
depending on the vector layout.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/sh/intc/internals.h b/drivers/sh/intc/internals.h
index f034a979a16f..7dff08e2a071 100644
--- a/drivers/sh/intc/internals.h
+++ b/drivers/sh/intc/internals.h
@@ -1,5 +1,6 @@
 #include <linux/sh_intc.h>
 #include <linux/irq.h>
+#include <linux/irqdomain.h>
 #include <linux/list.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
@@ -66,6 +67,7 @@ struct intc_desc_int {
 	unsigned int nr_sense;
 	struct intc_window *window;
 	unsigned int nr_windows;
+	struct irq_domain *domain;
 	struct irq_chip chip;
 	bool skip_suspend;
 };
@@ -187,6 +189,9 @@ unsigned long intc_get_ack_handle(unsigned int irq);
 void intc_enable_disable_enum(struct intc_desc *desc, struct intc_desc_int *d,
 			      intc_enum enum_id, int enable);
 
+/* irqdomain.c */
+void intc_irq_domain_init(struct intc_desc_int *d, struct intc_hw_desc *hw);
+
 /* virq.c */
 void intc_subgroup_init(struct intc_desc *desc, struct intc_desc_int *d);
 void intc_irq_xlate_set(unsigned int irq, intc_enum id, struct intc_desc_int *d);