diff options
Diffstat (limited to 'kernel/irq/irqdomain.c')
| -rw-r--r-- | kernel/irq/irqdomain.c | 32 |
1 files changed, 27 insertions, 5 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index dc473faadcc8..2652c4cfd877 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -867,13 +867,9 @@ void of_phandle_args_to_fwspec(struct device_node *np, const u32 *args, } EXPORT_SYMBOL_GPL(of_phandle_args_to_fwspec); -unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec) +static struct irq_domain *fwspec_to_domain(struct irq_fwspec *fwspec) { struct irq_domain *domain; - struct irq_data *irq_data; - irq_hw_number_t hwirq; - unsigned int type = IRQ_TYPE_NONE; - int virq; if (fwspec->fwnode) { domain = irq_find_matching_fwspec(fwspec, DOMAIN_BUS_WIRED); @@ -883,6 +879,32 @@ unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec) domain = irq_default_domain; } + return domain; +} + +#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY +int irq_populate_fwspec_info(struct irq_fwspec *fwspec, struct irq_fwspec_info *info) +{ + struct irq_domain *domain = fwspec_to_domain(fwspec); + + memset(info, 0, sizeof(*info)); + + if (!domain || !domain->ops->get_fwspec_info) + return 0; + + return domain->ops->get_fwspec_info(fwspec, info); +} +#endif + +unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec) +{ + unsigned int type = IRQ_TYPE_NONE; + struct irq_domain *domain; + struct irq_data *irq_data; + irq_hw_number_t hwirq; + int virq; + + domain = fwspec_to_domain(fwspec); if (!domain) { pr_warn("no irq domain found for %s !\n", of_node_full_name(to_of_node(fwspec->fwnode))); |