Messages in this thread | | | Date | Thu, 16 Jun 2011 09:04:51 -0500 | From | Rob Herring <> | Subject | Re: [RFC PATCH 03/11] dt/irq: add irq_domain_add_simple() helper |
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Grant,
On 06/15/2011 11:41 PM, Grant Likely wrote: > irq_domain_add_simple() is an easy way to generate an irq translation > domain for simple irq controllers. It assumes a flat 1:1 mapping from > hardware irq number to an offset of the first linux irq number assigned > to the controller > > Signed-off-by: Grant Likely <grant.likely@secretlab.ca> > --- > include/linux/irq.h | 11 +++++++++ > kernel/irq/irqdomain.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++- > 2 files changed, 68 insertions(+), 1 deletions(-) > > diff --git a/include/linux/irq.h b/include/linux/irq.h > index a103c01..50830fc 100644 > --- a/include/linux/irq.h > +++ b/include/linux/irq.h > @@ -797,6 +797,17 @@ extern unsigned int irq_domain_map(struct irq_domain *domain, > irq_hw_number_t hwirq); > extern void irq_domain_unmap(struct irq_domain *domain, irq_hw_number_t hw); > > +struct of_device_id; > +#ifdef CONFIG_OF > +extern void irq_domain_add_simple(struct device_node *controller, int irq_base); > +extern void irq_domain_generate_simple(struct of_device_id *match,
match should be const
> + u64 phys_base, unsigned int irq_start); > +#else
Empty function for irq_domain_add_simple?
> +static inline void irq_domain_generate_simple(struct of_device_id *match, > + u64 phys_base, unsigned int irq_start) { } > +#endif > + > +
Rob
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