irqdomain: Introduce is_fwnode_irqchip helper

[linux-drm-fsl-dcu.git] / include / linux / irqdomain.h

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index d5e5c5bef28c45e29bff88b175d581c0595b73f9..d72fabc04437bd54ecb3cdb0e62b2f1ce0dcb62f 100644 (file)
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -211,6 +211,11 @@ static inline struct fwnode_handle *of_node_to_fwnode(struct device_node *node)
        return node ? &node->fwnode : NULL;
 }
 
+static inline bool is_fwnode_irqchip(struct fwnode_handle *fwnode)
+{
+       return fwnode && fwnode->type == FWNODE_IRQCHIP;
+}
+
 static inline struct irq_domain *irq_find_matching_host(struct device_node *node,
                                                        enum irq_domain_bus_token bus_token)
 {
@@ -410,6 +415,11 @@ static inline bool irq_domain_is_hierarchy(struct irq_domain *domain)
 static inline void irq_dispose_mapping(unsigned int virq) { }
 static inline void irq_domain_activate_irq(struct irq_data *data) { }
 static inline void irq_domain_deactivate_irq(struct irq_data *data) { }
+static inline struct irq_domain *irq_find_matching_fwnode(
+       struct fwnode_handle *fwnode, enum irq_domain_bus_token bus_token)
+{
+       return NULL;
+}
 #endif /* !CONFIG_IRQ_DOMAIN */
 
 #endif /* _LINUX_IRQDOMAIN_H */