of/irq: Export of_irq_find_parent again

of_irq_find_parent was made static since it had no users outside of
of_irq.c. Export it again since we are going to use it again.

Signed-off-by: Carlo Caione <carlo@endlessm.com>
[robh: move of_irq_find_parent to correct ifdef section]
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 902b89be7217137726be7eb1ab19263c0372635a..4fa916dffc91924a0354c3c779ae5bf41cb79cec 100644 (file)
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -53,7 +53,7 @@ EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
  * Returns a pointer to the interrupt parent node, or NULL if the interrupt
  * parent could not be determined.
  */
-static struct device_node *of_irq_find_parent(struct device_node *child)
+struct device_node *of_irq_find_parent(struct device_node *child)
 {
        struct device_node *p;
        const __be32 *parp;
@@ -77,6 +77,7 @@ static struct device_node *of_irq_find_parent(struct device_node *child)
 
        return p;
 }
+EXPORT_SYMBOL_GPL(of_irq_find_parent);
 
 /**
  * of_irq_parse_raw - Low level interrupt tree parsing

diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index 039f2eec49ced0ae1c638354d1a34c924cebde51..f648acf27ed729f81f64d00bf4d1b2931d4e72fd 100644 (file)
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -46,6 +46,7 @@ extern int of_irq_get(struct device_node *dev, int index);
 extern int of_irq_get_byname(struct device_node *dev, const char *name);
 extern int of_irq_to_resource_table(struct device_node *dev,
                struct resource *res, int nr_irqs);
+extern struct device_node *of_irq_find_parent(struct device_node *child);
 extern struct irq_domain *of_msi_get_domain(struct device *dev,
                                            struct device_node *np,
                                            enum irq_domain_bus_token token);
@@ -70,6 +71,11 @@ static inline int of_irq_to_resource_table(struct device_node *dev,
 {
        return 0;
 }
+static inline void *of_irq_find_parent(struct device_node *child)
+{
+       return NULL;
+}
+
 static inline struct irq_domain *of_msi_get_domain(struct device *dev,
                                                   struct device_node *np,
                                                   enum irq_domain_bus_token token)