Messages in this thread Patch in this message | | | From | Lee Jones <> | Subject | [PATCH 05/32] of/irq: Create stub for of_irq_find_parent when !CONFIG_OF | Date | Thu, 20 Sep 2012 14:12:23 +0200 |
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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.
Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> --- 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 */ -- 1.7.9.5
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