From patchwork Wed Mar 2 10:55:28 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nishanth Menon X-Patchwork-Id: 602781 X-Patchwork-Delegate: khilman@deeprootsystems.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p22Avrg5009318 for ; Wed, 2 Mar 2011 10:57:53 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757173Ab1CBK5w (ORCPT ); Wed, 2 Mar 2011 05:57:52 -0500 Received: from na3sys009aog105.obsmtp.com ([74.125.149.75]:46853 "EHLO na3sys009aog105.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757116Ab1CBK5v (ORCPT ); Wed, 2 Mar 2011 05:57:51 -0500 Received: from source ([209.85.213.171]) (using TLSv1) by na3sys009aob105.postini.com ([74.125.148.12]) with SMTP ID DSNKTW4irkXBT3m23Wia9ZhUXc5ySZiXp6B9@postini.com; Wed, 02 Mar 2011 02:57:51 PST Received: by mail-yx0-f171.google.com with SMTP id 35so3110861yxh.2 for ; Wed, 02 Mar 2011 02:57:50 -0800 (PST) Received: by 10.150.212.8 with SMTP id k8mr10556026ybg.60.1299063470602; Wed, 02 Mar 2011 02:57:50 -0800 (PST) Received: from localhost (dragon.ti.com [192.94.94.33]) by mx.google.com with ESMTPS id a12sm3687878yhk.27.2011.03.02.02.57.46 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 02 Mar 2011 02:57:49 -0800 (PST) From: Nishanth Menon To: linux-omap Cc: Kevin H , Tony L , linux-arm , Nishanth Menon Subject: [PATCH v2 15/18] omap3+: sr: disable spamming interrupts Date: Wed, 2 Mar 2011 16:25:28 +0530 Message-Id: <1299063331-27968-16-git-send-email-nm@ti.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1299063331-27968-1-git-send-email-nm@ti.com> References: <1299063331-27968-1-git-send-email-nm@ti.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Wed, 02 Mar 2011 10:57:53 +0000 (UTC) diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c index 49a04ea..d62da3d 100644 --- a/arch/arm/mach-omap2/smartreflex.c +++ b/arch/arm/mach-omap2/smartreflex.c @@ -209,8 +209,16 @@ static irqreturn_t sr_interrupt(int irq, void *data) value = irqstat_to_notifier_v2(status); } - if (sr_class->notify) - sr_class->notify(sr_info->voltdm, value); + /* Attempt some resemblence of recovery! */ + if (!value) { + dev_err(&sr_info->pdev->dev, "%s: Spurious interrupt!" + "status = 0x%08x. Disabling to prevent spamming!!\n", + __func__, status); + disable_irq_nosync(sr_info->irq); + } else { + if (sr_class->notify) + sr_class->notify(sr_info->voltdm, value); + } return IRQ_HANDLED; }