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| author |   Lee Jones <lee.jones@linaro.org> | 2012-08-08 13:44:59 +0100 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2012-09-20 12:32:30 +0200 |
| commit | 62861095dc3f40594958f45257f2551c1d7e2655 (patch) | |
| tree | bbc96dc3be49787d188a153ed39a25a1cdad1a5b /include/linux/of_irq.h | |
| parent | Documentation: Add the AB8500 CODEC device to the MFD AB8500 doc (diff) | |
| download | linux-dev-62861095dc3f40594958f45257f2551c1d7e2655.tar.xz linux-dev-62861095dc3f40594958f45257f2551c1d7e2655.zip | |
of/irq: Create stub for of_irq_find_parent when !CONFIG_OF
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>
Diffstat (limited to 'include/linux/of_irq.h')
| -rw-r--r-- | include/linux/of_irq.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h index 1717cd935e1c..b8e241125201 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 */ |