diff options
Diffstat (limited to 'include/linux/irqdomain.h')
| -rw-r--r-- | include/linux/irqdomain.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 2b696c9bcaaf..23e4ee523576 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -41,6 +41,7 @@ struct fwnode_handle; struct irq_domain; struct irq_chip; struct irq_data; +struct irq_desc; struct cpumask; struct seq_file; struct irq_affinity_desc; @@ -401,13 +402,31 @@ static inline unsigned int irq_create_mapping(struct irq_domain *host, return irq_create_mapping_affinity(host, hwirq, NULL); } +extern struct irq_desc *__irq_resolve_mapping(struct irq_domain *domain, + irq_hw_number_t hwirq, + unsigned int *irq); + +static inline struct irq_desc *irq_resolve_mapping(struct irq_domain *domain, + irq_hw_number_t hwirq) +{ + return __irq_resolve_mapping(domain, hwirq, NULL); +} + /** * irq_find_mapping() - Find a linux irq from a hw irq number. * @domain: domain owning this hardware interrupt * @hwirq: hardware irq number in that domain space */ -extern unsigned int irq_find_mapping(struct irq_domain *host, - irq_hw_number_t hwirq); +static inline unsigned int irq_find_mapping(struct irq_domain *domain, + irq_hw_number_t hwirq) +{ + unsigned int irq; + + if (__irq_resolve_mapping(domain, hwirq, &irq)) + return irq; + + return 0; +} static inline unsigned int irq_linear_revmap(struct irq_domain *domain, irq_hw_number_t hwirq) |