The following commit has been merged into the irq/core branch of tip: Commit-ID: b01ecceaf2c0c4b3f2d24aa0adcf096ab1648253 Gitweb: https://git.kernel.org/tip/b01ecceaf2c0c4b3f2d24aa0adcf096ab1648253 Author: Yash Shah <yash.shah@xxxxxxxxxx> AuthorDate: Tue, 10 Dec 2019 16:41:09 +05:30 Committer: Marc Zyngier <maz@xxxxxxxxxx> CommitterDate: Mon, 20 Jan 2020 09:19:33 genirq: Introduce irq_domain_translate_onecell Add a new function irq_domain_translate_onecell() that is to be used as the translate function in struct irq_domain_ops. Signed-off-by: Yash Shah <yash.shah@xxxxxxxxxx> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> Link: https://lore.kernel.org/r/1575976274-13487-2-git-send-email-yash.shah@xxxxxxxxxx --- include/linux/irqdomain.h | 5 +++++ kernel/irq/irqdomain.c | 17 +++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 3c340db..698749f 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -427,6 +427,11 @@ int irq_domain_translate_twocell(struct irq_domain *d, unsigned long *out_hwirq, unsigned int *out_type); +int irq_domain_translate_onecell(struct irq_domain *d, + struct irq_fwspec *fwspec, + unsigned long *out_hwirq, + unsigned int *out_type); + /* IPI functions */ int irq_reserve_ipi(struct irq_domain *domain, const struct cpumask *dest); int irq_destroy_ipi(unsigned int irq, const struct cpumask *dest); diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index dd822fd..7a8808c 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -987,6 +987,23 @@ const struct irq_domain_ops irq_domain_simple_ops = { EXPORT_SYMBOL_GPL(irq_domain_simple_ops); /** + * irq_domain_translate_onecell() - Generic translate for direct one cell + * bindings + */ +int irq_domain_translate_onecell(struct irq_domain *d, + struct irq_fwspec *fwspec, + unsigned long *out_hwirq, + unsigned int *out_type) +{ + if (WARN_ON(fwspec->param_count < 1)) + return -EINVAL; + *out_hwirq = fwspec->param[0]; + *out_type = IRQ_TYPE_NONE; + return 0; +} +EXPORT_SYMBOL_GPL(irq_domain_translate_onecell); + +/** * irq_domain_translate_twocell() - Generic translate for direct two cell * bindings *
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