From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753799Ab2GDPY6 (ORCPT ); Wed, 4 Jul 2012 11:24:58 -0400 Received: from cassiel.sirena.org.uk ([80.68.93.111]:44364 "EHLO cassiel.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751004Ab2GDPYz (ORCPT ); Wed, 4 Jul 2012 11:24:55 -0400 Date: Wed, 4 Jul 2012 16:24:51 +0100 From: Mark Brown To: Alex Courbot Cc: Sascha Hauer , Thierry Reding , "linux-tegra@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-fbdev@vger.kernel.org" Subject: Re: [PATCH] pwm-backlight: add regulator and GPIO support Message-ID: <20120704152451.GA7333@sirena.org.uk> References: <1340976167-27298-1-git-send-email-acourbot@nvidia.com> <20120704104840.GJ24458@pengutronix.de> <4FF43692.2040805@nvidia.com> <20120704130056.GC30009@pengutronix.de> <4FF45DDF.9000306@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4FF45DDF.9000306@nvidia.com> X-Cookie: FORCE YOURSELF TO RELAX! User-Agent: Mutt/1.5.20 (2009-06-14) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: broonie@sirena.org.uk X-SA-Exim-Scanned: No (on cassiel.sirena.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 05, 2012 at 12:14:39AM +0900, Alex Courbot wrote: > On Wed 04 Jul 2012 10:00:56 PM JST, Sascha Hauer wrote: > >Also please be aware that using a regulator in the pwm backlight will > >instantly break all existing users. That's hardly your fault though. > Sorry, I don't see why. Could you elaborate on this? All existing machines will start failing during probe as they won't be able to find the regulator - you should ideally make sure everyone in mainline gets an appropriate regulator set up.