From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Thu, 9 Aug 2012 16:53:48 +0100 Subject: [PATCH 1/8] of/irq: Create stub for of_irq_find_parent when !CONFIG_OF In-Reply-To: <1344527635-6163-1-git-send-email-lee.jones@linaro.org> References: <1344527635-6163-1-git-send-email-lee.jones@linaro.org> Message-ID: <1344527635-6163-2-git-send-email-lee.jones@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 CC: devicetree-discuss at lists.ozlabs.org Signed-off-by: Lee Jones --- 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