ARM64: DTS: Add rk3399-firefly uart4 device, node as /dev/ttyS1

[firefly-linux-kernel-4.4.55.git] / kernel / irq / irqdomain.c

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 22aa9612ef7ca98cd8796188a7021810cc86d05a..5c1b646a6e7dd99767172b7e535ceac07968e26b 100644 (file)
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -70,7 +70,7 @@ void irq_domain_free_fwnode(struct fwnode_handle *fwnode)
 {
        struct irqchip_fwid *fwid;
 
-       if (WARN_ON(fwnode->type != FWNODE_IRQCHIP))
+       if (WARN_ON(!is_fwnode_irqchip(fwnode)))
                return;
 
        fwid = container_of(fwnode, struct irqchip_fwid, fwnode);
@@ -243,14 +243,15 @@ struct irq_domain *irq_domain_add_legacy(struct device_node *of_node,
 EXPORT_SYMBOL_GPL(irq_domain_add_legacy);
 
 /**
- * irq_find_matching_fwnode() - Locates a domain for a given fwnode
- * @fwnode: FW descriptor of the interrupt controller
+ * irq_find_matching_fwspec() - Locates a domain for a given fwspec
+ * @fwspec: FW specifier for an interrupt
  * @bus_token: domain-specific data
  */
-struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode,
+struct irq_domain *irq_find_matching_fwspec(struct irq_fwspec *fwspec,
                                            enum irq_domain_bus_token bus_token)
 {
        struct irq_domain *h, *found = NULL;
+       struct fwnode_handle *fwnode = fwspec->fwnode;
        int rc;
 
        /* We might want to match the legacy controller last since
@@ -264,7 +265,9 @@ struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode,
         */
        mutex_lock(&irq_domain_mutex);
        list_for_each_entry(h, &irq_domain_list, link) {
-               if (h->ops->match)
+               if (h->ops->select && fwspec->param_count)
+                       rc = h->ops->select(h, fwspec, bus_token);
+               else if (h->ops->match)
                        rc = h->ops->match(h, to_of_node(fwnode), bus_token);
                else
                        rc = ((fwnode != NULL) && (h->fwnode == fwnode) &&
@@ -279,7 +282,7 @@ struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode,
        mutex_unlock(&irq_domain_mutex);
        return found;
 }
-EXPORT_SYMBOL_GPL(irq_find_matching_fwnode);
+EXPORT_SYMBOL_GPL(irq_find_matching_fwspec);
 
 /**
  * irq_set_default_host() - Set a "default" irq domain
@@ -573,10 +576,13 @@ unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec)
        unsigned int type = IRQ_TYPE_NONE;
        int virq;
 
-       if (fwspec->fwnode)
-               domain = irq_find_matching_fwnode(fwspec->fwnode, DOMAIN_BUS_ANY);
-       else
+       if (fwspec->fwnode) {
+               domain = irq_find_matching_fwspec(fwspec, DOMAIN_BUS_WIRED);
+               if (!domain)
+                       domain = irq_find_matching_fwspec(fwspec, DOMAIN_BUS_ANY);
+       } else {
                domain = irq_default_domain;
+       }
 
        if (!domain) {
                pr_warn("no irq domain found for %s !\n",