From patchwork Thu May 2 06:25:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ambresh K X-Patchwork-Id: 2510301 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) by patchwork2.kernel.org (Postfix) with ESMTP id 8CD55DF215 for ; Thu, 2 May 2013 06:27:26 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UXmyR-0001fT-HI; Thu, 02 May 2013 06:26:36 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UXmyB-0001sP-8n; Thu, 02 May 2013 06:26:19 +0000 Received: from comal.ext.ti.com ([198.47.26.152]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UXmxz-0001pV-Cy for linux-arm-kernel@lists.infradead.org; Thu, 02 May 2013 06:26:08 +0000 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id r426PiHm016260; Thu, 2 May 2013 01:25:44 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id r426Pi0L031081; Thu, 2 May 2013 01:25:44 -0500 Received: from dlelxv24.itg.ti.com (172.17.1.199) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.2.342.3; Thu, 2 May 2013 01:25:44 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlelxv24.itg.ti.com (8.13.8/8.13.8) with ESMTP id r426PiMc027936; Thu, 2 May 2013 01:25:44 -0500 Received: from localhost (h83-1.vpn.ti.com [172.24.83.1]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r426PeV17876; Thu, 2 May 2013 01:25:41 -0500 (CDT) From: Ambresh K To: Mike Turquette Subject: [Patch 2/3] clk: skip re-parenting orphan clk Date: Thu, 2 May 2013 11:55:28 +0530 Message-ID: <1367475929-32166-3-git-send-email-ambresh@ti.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1367475929-32166-1-git-send-email-ambresh@ti.com> References: <1367475929-32166-1-git-send-email-ambresh@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130502_022607_557596_87F8CDF1 X-CRM114-Status: UNSURE ( 9.51 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -9.5 (---------) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-9.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [198.47.26.152 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -2.6 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Nishanth Menon , Rajendra , linux-kernel@vger.kernel.org, Tero Kristo , Ambresh K , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Ambresh K If clk is same as orphan clk than skip the iteration, there by avoiding unnecessary look-up. Signed-off-by: Ambresh K --- drivers/clk/clk.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index c187321..f4d2c73 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1635,6 +1635,10 @@ int __clk_init(struct device *dev, struct clk *clk) * this clock */ hlist_for_each_entry_safe(orphan, tmp2, &clk_orphan_list, child_node) { + /* Skip if clk is same as orphan clk */ + if (!strcmp(clk->name, orphan->name)) + continue; + if (orphan->ops->get_parent) { i = orphan->ops->get_parent(orphan->hw); if (i < 0) {