From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH 1/8] of/irq: Create stub for of_irq_find_parent when !CONFIG_OF Date: Thu, 09 Aug 2012 11:20:54 -0500 Message-ID: <5023E366.9010603@gmail.com> References: <1344527635-6163-1-git-send-email-lee.jones@linaro.org> <1344527635-6163-2-git-send-email-lee.jones@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1344527635-6163-2-git-send-email-lee.jones@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: Lee Jones Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linus.walleij@stericsson.com, arnd@arndb.de, devicetree-discuss@lists.ozlabs.org, broonie@opensource.wolfsonmicro.com, STEricsson_nomadik_linux@list.st.com List-Id: devicetree@vger.kernel.org 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. Where are you using this? I don't have all the patches in the series. Rob > > CC: Rob Herring > CC: devicetree-discuss@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 */ >