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genirq/generic_chip: Export irq_unmap_generic_chip 

Some irq controllers have to re-implement a private version for
irq_generic_chip_ops, because they have a different xlate to translate
hwirq. Export irq_unmap_generic_chip to allow reusing in drivers.

Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1658314292-35346-5-git-send-email-lvjianmin@loongson.cn
This commit is contained in:
Jianmin Lv 2022-07-20 18:51:23 +08:00 committed by Marc Zyngier
parent 744b9a0c3c
commit d319a299f4
2 changed files with 2 additions and 1 deletions
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1
include/linux/irq.h
View File

@ -1121,6 +1121,7 @@ int irq_gc_set_wake(struct irq_data *d, unsigned int on);
/* Setup functions for irq_chip_generic */
int irq_map_generic_chip(struct irq_domain *d, unsigned int virq,
irq_hw_number_t hw_irq);
void irq_unmap_generic_chip(struct irq_domain *d, unsigned int virq);
struct irq_chip_generic *
irq_alloc_generic_chip(const char *name, int nr_ct, unsigned int irq_base,
void __iomem *reg_base, irq_flow_handler_t handler);

2
kernel/irq/generic-chip.c
View File

@ -431,7 +431,7 @@ int irq_map_generic_chip(struct irq_domain *d, unsigned int virq,
return 0;
}
static void irq_unmap_generic_chip(struct irq_domain *d, unsigned int virq)
void irq_unmap_generic_chip(struct irq_domain *d, unsigned int virq)
{
struct irq_data *data = irq_domain_get_irq_data(d, virq);
struct irq_domain_chip_generic *dgc = d->gc;