From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755116Ab3LUOWZ (ORCPT ); Sat, 21 Dec 2013 09:22:25 -0500 Received: from cassiel.sirena.org.uk ([80.68.93.111]:41816 "EHLO cassiel.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754020Ab3LUOWY (ORCPT ); Sat, 21 Dec 2013 09:22:24 -0500 Date: Sat, 21 Dec 2013 14:22:01 +0000 From: Mark Brown To: Fabio Estevam Cc: shawn.guo@linaro.org, b20788@freescale.com, linux-kernel@vger.kernel.org, Fabio Estevam Message-ID: <20131221142201.GE30815@sirena.org.uk> References: <1387550902-6086-1-git-send-email-festevam@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1387550902-6086-1-git-send-email-festevam@gmail.com> X-Cookie: You will outgrow your usefulness. User-Agent: Mutt/1.5.21 (2010-09-15) X-SA-Exim-Connect-IP: 217.42.81.147 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [RFC] regulator: anatop-regulator: Also provide a delay when voltage decreases X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:57:07 +0000) X-SA-Exim-Scanned: Yes (on cassiel.sirena.org.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Dec 20, 2013 at 12:48:22PM -0200, Fabio Estevam wrote: > I could not find in the reference manual anywhere that says that the delay > should de done only when the voltage increases. The reason this is normally not done is that generally consumers don't care too much if the supply is too high but will fail if they get an undervoltage supply so there's not such a great need to wait. It can also be hard to tell how quickly the voltage will fall.