From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933465Ab1FBKks (ORCPT ); Thu, 2 Jun 2011 06:40:48 -0400 Received: from opensource.wolfsonmicro.com ([80.75.67.52]:56900 "EHLO opensource2.wolfsonmicro.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932591Ab1FBKkr (ORCPT ); Thu, 2 Jun 2011 06:40:47 -0400 Date: Thu, 2 Jun 2011 11:40:45 +0100 From: Mark Brown To: Samuel Ortiz Cc: linux-kernel@vger.kernel.org, patches@opensource.wolfsonmicro.com Subject: Re: [PATCH] mfd: Read wm831x AUXADC conversion results before acknowledging interrupt Message-ID: <20110602104044.GE3085@opensource.wolfsonmicro.com> References: <1307010516-11711-1-git-send-email-broonie@opensource.wolfsonmicro.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1307010516-11711-1-git-send-email-broonie@opensource.wolfsonmicro.com> X-Cookie: You will be awarded some great honor. User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 02, 2011 at 11:28:36AM +0100, Mark Brown wrote: > Ensure that there's no possibility of loosing an AUXADC interrupt by reading > the conversion result in the IRQ handler when using interrupts. Otherwise > it's possible that under very heavy load a new conversion could be initiated > before the acknowledgement for a previous interrupt has happened. Sorry, fat fingers with the commmit - new version coming shortly.