From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH] gpio: omap: Fix gpiochip_add() handling for deferred probe Date: Mon, 31 Aug 2015 07:11:34 -0700 Message-ID: <20150831141134.GA4215@atomide.com> References: <1440787489-15992-1-git-send-email-tony@atomide.com> <55E4186E.7090605@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from muru.com ([72.249.23.125]:47719 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752942AbbHaOLi (ORCPT ); Mon, 31 Aug 2015 10:11:38 -0400 Content-Disposition: inline In-Reply-To: <55E4186E.7090605@ti.com> Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: Grygorii Strashko Cc: Linus Walleij , Alexandre Courbot , linux-gpio@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Javier Martinez Canillas , Kevin Hilman , Santosh Shilimkar * Grygorii Strashko [150831 02:07]: > Hi Tony, > > On 08/28/2015 09:44 PM, Tony Lindgren wrote: > >Currently we gpio-omap breaks if gpiochip_add() returns -EPROBE_DEFER: > > > >[ 0.570000] gpiochip_add: GPIOs 0..31 (gpio) failed to register > >[ 0.570000] omap_gpio 48310000.gpio: Could not register gpio chip -517 > >... > >[ 3.670000] omap_gpio 48310000.gpio: Unbalanced pm_runtime_enable! > > I have no objection to the patch itself. > > But I curious, How have you got this error output? Was it simulated? I ran into it when trying to get rid of all the custom initcalls for various drivers. And especially if adding dts mappings for gpio-ranges to try to find some solution for the 1.158 issue that keeps me from having a mainline GPIO PM regresion test with pinging wl12xx during off idle :) Regards, Tony