genirq/irqdomain: Implement get_name() method on irqchip fwnodes

Prerequisite to make x86 more irqdomain compliant.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201024213535.443185-23-dwmw2@infradead.org

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index cf8b374b892da0ce854e72c8750dfda981315dc8..673fa64c1c4413908f477f868223cd22a7380cf8 100644 (file)
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -42,7 +42,16 @@ static inline void debugfs_add_domain_dir(struct irq_domain *d) { }
 static inline void debugfs_remove_domain_dir(struct irq_domain *d) { }
 #endif
 
-const struct fwnode_operations irqchip_fwnode_ops;
+static const char *irqchip_fwnode_get_name(const struct fwnode_handle *fwnode)
+{
+       struct irqchip_fwid *fwid = container_of(fwnode, struct irqchip_fwid, fwnode);
+
+       return fwid->name;
+}
+
+const struct fwnode_operations irqchip_fwnode_ops = {
+       .get_name = irqchip_fwnode_get_name,
+};
 EXPORT_SYMBOL_GPL(irqchip_fwnode_ops);
 
 /**