diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 1acc5308fcb7..5df8780100bb 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -306,7 +306,7 @@ static void irq_domain_instantiate_descs(const struct irq_domain_info *info) } static struct irq_domain *__irq_domain_instantiate(const struct irq_domain_info *info, - bool cond_alloc_descs) + bool cond_alloc_descs, bool force_associate) { struct irq_domain *domain; int err; @@ -342,8 +342,12 @@ static struct irq_domain *__irq_domain_instantiate(const struct irq_domain_info if (cond_alloc_descs && info->virq_base > 0) irq_domain_instantiate_descs(info); - /* Legacy interrupt domains have a fixed Linux interrupt number */ - if (info->virq_base > 0) { + /* + * Legacy interrupt domains have a fixed Linux interrupt number + * associated. Other interrupt domains can request association by + * providing a Linux interrupt number > 0. + */ + if (force_associate || info->virq_base > 0) { irq_domain_associate_many(domain, info->virq_base, info->hwirq_base, info->size - info->hwirq_base); } @@ -366,7 +370,7 @@ static struct irq_domain *__irq_domain_instantiate(const struct irq_domain_info */ struct irq_domain *irq_domain_instantiate(const struct irq_domain_info *info) { - return __irq_domain_instantiate(info, false); + return __irq_domain_instantiate(info, false, false); } EXPORT_SYMBOL_GPL(irq_domain_instantiate); @@ -470,7 +474,7 @@ struct irq_domain *irq_domain_create_simple(struct fwnode_handle *fwnode, .ops = ops, .host_data = host_data, }; - struct irq_domain *domain = __irq_domain_instantiate(&info, true); + struct irq_domain *domain = __irq_domain_instantiate(&info, true, false); return IS_ERR(domain) ? NULL : domain; } @@ -519,7 +523,7 @@ struct irq_domain *irq_domain_create_legacy(struct fwnode_handle *fwnode, .ops = ops, .host_data = host_data, }; - struct irq_domain *domain = irq_domain_instantiate(&info); + struct irq_domain *domain = __irq_domain_instantiate(&info, false, true); return IS_ERR(domain) ? NULL : domain; }