From patchwork Sat Feb 19 12:01:55 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nishanth Menon X-Patchwork-Id: 574821 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 p1JC2BhI013921 for ; Sat, 19 Feb 2011 12:04:16 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754416Ab1BSMEP (ORCPT ); Sat, 19 Feb 2011 07:04:15 -0500 Received: from na3sys009aog116.obsmtp.com ([74.125.149.240]:42014 "EHLO na3sys009aog116.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754404Ab1BSMEP (ORCPT ); Sat, 19 Feb 2011 07:04:15 -0500 Received: from source ([209.85.161.172]) (using TLSv1) by na3sys009aob116.postini.com ([74.125.148.12]) with SMTP ID DSNKTV+xvtwY2Ohq9BmlaNYmyBwtqog/02Kg@postini.com; Sat, 19 Feb 2011 04:04:14 PST Received: by gxk5 with SMTP id 5so119160gxk.17 for ; Sat, 19 Feb 2011 04:04:13 -0800 (PST) Received: by 10.150.58.17 with SMTP id g17mr2452201yba.16.1298117053751; Sat, 19 Feb 2011 04:04:13 -0800 (PST) Received: from localhost (dragon.ti.com [192.94.94.33]) by mx.google.com with ESMTPS id q4sm1042707yba.2.2011.02.19.04.04.10 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 19 Feb 2011 04:04:12 -0800 (PST) From: Nishanth Menon To: linux-omap Cc: Tony Lindgren , Kevin Hilman , Nishanth Menon Subject: [PATCH 16/19] omap3+: sr: disable spamming interrupts Date: Sat, 19 Feb 2011 17:31:55 +0530 Message-Id: <1298116918-30744-17-git-send-email-nm@ti.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1298116918-30744-1-git-send-email-nm@ti.com> References: <1298116918-30744-1-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]); Sat, 19 Feb 2011 12:04:16 +0000 (UTC) diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c index ad23b8d..0301186 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; }