Messages in this thread | | | Date | Thu, 09 Aug 2012 14:53:23 -0500 | From | Rob Herring <> | Subject | Re: [PATCH 1/8] of/irq: Create stub for of_irq_find_parent when !CONFIG_OF |
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On 08/09/2012 10:53 AM, Lee Jones wrote: > of_irq_find_parent is a handy function to use outside the confines of > the Open Firmware subsystem. One such use-case is when the IRQ Domain > wishes to find an IRQ domain for a given device node. Currently it can > not take any notice of the 'interrupt-parent' property. Instead it > just uses the first IRQ controller as it climbs the Device Tree. If > we were to use this as a precursor the resultant controller is more > likely to be correct. > > CC: Rob Herring <rob.herring@calxeda.com> > CC: devicetree-discuss@lists.ozlabs.org > Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Rob
> --- > include/linux/of_irq.h | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h > index 1717cd9..b8e2411 100644 > --- a/include/linux/of_irq.h > +++ b/include/linux/of_irq.h > @@ -83,6 +83,11 @@ static inline unsigned int irq_of_parse_and_map(struct device_node *dev, > { > return 0; > } > + > +static inline void *of_irq_find_parent(struct device_node *child) > +{ > + return NULL; > +} > #endif /* !CONFIG_OF */ > > #endif /* __OF_IRQ_H */ >
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