From patchwork Sat Mar 5 15:29:13 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nishanth Menon X-Patchwork-Id: 612401 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 p25FVHa8024805 for ; Sat, 5 Mar 2011 15:31:17 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753053Ab1CEPbR (ORCPT ); Sat, 5 Mar 2011 10:31:17 -0500 Received: from na3sys009aog106.obsmtp.com ([74.125.149.77]:35546 "EHLO na3sys009aog106.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752566Ab1CEPbQ (ORCPT ); Sat, 5 Mar 2011 10:31:16 -0500 Received: from source ([209.85.218.42]) (using TLSv1) by na3sys009aob106.postini.com ([74.125.148.12]) with SMTP ID DSNKTXJXQ30RVkB2W+DnbLxIIEQiLGp4akF4@postini.com; Sat, 05 Mar 2011 07:31:16 PST Received: by yic21 with SMTP id 21so1868993yic.15 for ; Sat, 05 Mar 2011 07:31:15 -0800 (PST) Received: by 10.151.19.34 with SMTP id w34mr371362ybi.140.1299339075001; Sat, 05 Mar 2011 07:31:15 -0800 (PST) Received: from localhost (dragon.ti.com [192.94.94.33]) by mx.google.com with ESMTPS id w15sm349735ybk.13.2011.03.05.07.31.10 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 05 Mar 2011 07:31:13 -0800 (PST) From: Nishanth Menon To: linux-omap Cc: linux-arm , Kevin Hilman , Tony , Paul , Nishanth Menon Subject: [PATCH V3 10/19] OMAP3+: SR: enable/disable SR only on need Date: Sat, 5 Mar 2011 20:59:13 +0530 Message-Id: <1299338962-5602-11-git-send-email-nm@ti.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1299338962-5602-1-git-send-email-nm@ti.com> References: <1299338962-5602-1-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, 05 Mar 2011 15:31:17 +0000 (UTC) diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c index f9057ad..2b6fdc7 100644 --- a/arch/arm/mach-omap2/smartreflex.c +++ b/arch/arm/mach-omap2/smartreflex.c @@ -806,10 +806,13 @@ static int omap_sr_autocomp_store(void *data, u64 val) return -EINVAL; } - if (!val) - sr_stop_vddautocomp(sr_info); - else - sr_start_vddautocomp(sr_info); + /* control enable/disable only if there is a delta in value */ + if (sr_info->autocomp_active != val) { + if (!val) + sr_stop_vddautocomp(sr_info); + else + sr_start_vddautocomp(sr_info); + } return 0; }