From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [RFC] [PATCH 0/3] of: allow to support irq domain register as platform_device for platform_device Date: Tue, 28 May 2013 17:41:33 +0200 Message-ID: <201305281741.33951.arnd@arndb.de> References: <20130528145219.GA30411@game.jcrosoft.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20130528145219.GA30411-RQcB7r2h9QmfDR2tN2SG5Ni2O/JbrIOy@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: "devicetree-discuss" To: Jean-Christophe PLAGNIOL-VILLARD Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Rob Herring , Ralf Baechle List-Id: devicetree@vger.kernel.org On Tuesday 28 May 2013, Jean-Christophe PLAGNIOL-VILLARD wrote: > Today in the current of implementation we populate all the ressources > at of_platform_populate time. But this leed to a chicken-egg dilemat > some the irq present in DT are from platform_device too. And you can > not resolve them as of_platform_populate. So delay the populate of irq > at platform_drv_probe. I like it a lot, thanks for doing this! Obviously this needs to be tested well on all architectures, but I think it's the right solution for the problem. I was originally thinking we'd just allocated the resources dynamically using devm_kmalloc in platform_drv_probe, but your solution to preallocate them at boot time seems nicer. I believe we still need the same patch for the amba bus, and possibly a couple more, but platform_bus covers most of the interesting cases. Arnd