Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757495AbZLOOuI (ORCPT ); Tue, 15 Dec 2009 09:50:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756050AbZLOOuG (ORCPT ); Tue, 15 Dec 2009 09:50:06 -0500 Received: from mail-ew0-f214.google.com ([209.85.219.214]:51192 "EHLO mail-ew0-f214.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755707AbZLOOuD (ORCPT ); Tue, 15 Dec 2009 09:50:03 -0500 Subject: Re: [PATCH 4/4] regulator: mc13783-regulator: correct the probing time. From: Liam Girdwood To: Alberto Panizzo Cc: Uwe =?ISO-8859-1?Q?Kleine-K=F6nig?= , Mark Brown , linux-kernel , linux-arm-kernel-infradead , Samuel Ortiz , Sascha linux-arm In-Reply-To: <1260813215.2022.171.camel@climbing-alby> References: <1260808880.2022.98.camel@climbing-alby> <1260810776.2022.130.camel@climbing-alby> <1260811085.2022.135.camel@climbing-alby> <1260811598.2022.144.camel@climbing-alby> <1260813215.2022.171.camel@climbing-alby> Content-Type: text/plain; charset="UTF-8" Date: Tue, 15 Dec 2009 14:50:01 +0000 Message-ID: <1260888601.3591.552.camel@odin> Mime-Version: 1.0 X-Mailer: Evolution 2.28.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1017 Lines: 27 On Mon, 2009-12-14 at 18:53 +0100, Alberto Panizzo wrote: > When the mc13783-regulator driver is built in kernel, probing it during > the regulator subsystem initialisation result in a fault. > > That is because regulator subsystem is planned to be initialised very early > in the boot process, before the mfd subsystem initialisation. > > The mc12783-regulator probing process need to access to the mc13783-core > functionality to read/write mc13783 registers and so must be called after > the mc13783-core driver initialisation. > > The way to do this is to let the kernel probe the mc13783-regulator driver when > mc13783-core register his regulator subdevice. > > Signed-off-by: Alberto Panizzo Applied to 2.6.33 Thanks Liam -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/