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 <[email protected]>
> ---
> 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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