Return-path: Received: from hqemgate03.nvidia.com ([216.228.121.140]:3108 "EHLO hqemgate03.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758012Ab2HJJMJ (ORCPT ); Fri, 10 Aug 2012 05:12:09 -0400 Subject: Re: How to get the irq flags from the dts file From: Wei Ni To: Mark Brown CC: Arnd Bergmann , "linux-arm-kernel@lists.infradead.org" , "linux-wireless@vger.kernel.org" , "devicetree-discuss@lists.ozlabs.org" , "brcm80211-dev-list@broadcom.com" , "linux-kernel@vger.kernel.org" , "rob.herring@calxeda.com" , "frankyl@broadcom.com" , "linux-tegra@vger.kernel.org" In-Reply-To: <20120809120530.GC8474@sirena.org.uk> References: <1344509006.2295.148.camel@tegra-chromium-2> <201208091148.42748.arnd@arndb.de> <20120809120530.GC8474@sirena.org.uk> Date: Fri, 10 Aug 2012 17:11:56 +0800 Message-ID: <1344589916.21467.1.camel@tegra-chromium-2> (sfid-20120810_111216_533709_3BFD503C) MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, 2012-08-09 at 20:05 +0800, Mark Brown wrote: > On Thu, Aug 09, 2012 at 11:48:42AM +0000, Arnd Bergmann wrote: > > On Thursday 09 August 2012, Wei Ni wrote: > > > > The wlan driver wish this flags include the IRQF_TRGGER_* information, > > > and it will use this flags to configure other hw settings. If it is > > > wrong, the wlan can't work. > > You can read the configuration with irqd_get_trigger_type() - see the OF > code in sound/soc/codecs/wm8903.c for an example. I tried it, it worked fine. thanks for your help. > > > The driver should not need to know about thie flag. It gets read > > by irq_create_of_mapping when calling teh xlate function and > > gets set using irq_set_irq_type from there too. > > That only helps the interrupt controller, it doesn't help the interrupt > source. A good proportion of embedded devices have a great deal of > flexibility in how they signal interrupts so they need to know what mode > to pick. > -- > To unsubscribe from this list: send the line "unsubscribe linux-tegra" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html