From patchwork Fri Nov 11 01:10:16 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Zhao X-Patchwork-Id: 5041 Return-Path: X-Original-To: patchwork@peony.canonical.com Delivered-To: patchwork@peony.canonical.com Received: from fiordland.canonical.com (fiordland.canonical.com [91.189.94.145]) by peony.canonical.com (Postfix) with ESMTP id C05B823E01 for ; Fri, 11 Nov 2011 01:11:21 +0000 (UTC) Received: from mail-fx0-f52.google.com (mail-fx0-f52.google.com [209.85.161.52]) by fiordland.canonical.com (Postfix) with ESMTP id AC775A18304 for ; Fri, 11 Nov 2011 01:11:21 +0000 (UTC) Received: by faan26 with SMTP id n26so5072572faa.11 for ; Thu, 10 Nov 2011 17:11:21 -0800 (PST) Received: by 10.152.135.179 with SMTP id pt19mr5660174lab.47.1320973881471; Thu, 10 Nov 2011 17:11:21 -0800 (PST) X-Forwarded-To: linaro-patchwork@canonical.com X-Forwarded-For: patch@linaro.org linaro-patchwork@canonical.com Delivered-To: patches@linaro.org Received: by 10.152.40.7 with SMTP id t7cs30833lak; Thu, 10 Nov 2011 17:11:21 -0800 (PST) Received: by 10.68.31.170 with SMTP id b10mr19587078pbi.18.1320973878356; Thu, 10 Nov 2011 17:11:18 -0800 (PST) Received: from VA3EHSOBE010.bigfish.com (mail-va3.bigfish.com. [216.32.180.10]) by mx.google.com with ESMTPS id m3si5882145pbj.125.2011.11.10.17.11.17 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 10 Nov 2011 17:11:18 -0800 (PST) Received-SPF: neutral (google.com: 216.32.180.10 is neither permitted nor denied by best guess record for domain of richard.zhao@linaro.org) client-ip=216.32.180.10; Authentication-Results: mx.google.com; spf=neutral (google.com: 216.32.180.10 is neither permitted nor denied by best guess record for domain of richard.zhao@linaro.org) smtp.mail=richard.zhao@linaro.org Received: from mail15-va3-R.bigfish.com (10.7.14.252) by VA3EHSOBE010.bigfish.com (10.7.40.12) with Microsoft SMTP Server id 14.1.225.22; Fri, 11 Nov 2011 01:10:51 +0000 Received: from mail15-va3 (localhost [127.0.0.1]) by mail15-va3-R.bigfish.com (Postfix) with ESMTP id 46A6C3A0263; Fri, 11 Nov 2011 01:10:58 +0000 (UTC) X-SpamScore: 0 X-BigFish: VS0(zzzz1202hzz8275dhz2dh87h2a8h668h839h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-FB-DOMAIN-IP-MATCH: fail Received: from mail15-va3 (localhost.localdomain [127.0.0.1]) by mail15-va3 (MessageSwitch) id 1320973857976638_13423; Fri, 11 Nov 2011 01:10:57 +0000 (UTC) Received: from VA3EHSMHS005.bigfish.com (unknown [10.7.14.236]) by mail15-va3.bigfish.com (Postfix) with ESMTP id E2884C0045; Fri, 11 Nov 2011 01:10:57 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by VA3EHSMHS005.bigfish.com (10.7.99.15) with Microsoft SMTP Server (TLS) id 14.1.225.22; Fri, 11 Nov 2011 01:10:49 +0000 Received: from az33smr01.freescale.net (10.64.34.199) by 039-SN1MMR1-002.039d.mgd.msft.net (10.84.1.15) with Microsoft SMTP Server id 14.1.339.2; Thu, 10 Nov 2011 19:11:14 -0600 Received: from b20223-02.ap.freescale.net (b20223-02.ap.freescale.net [10.192.242.124]) by az33smr01.freescale.net (8.13.1/8.13.0) with ESMTP id pAB1B4bJ016594; Thu, 10 Nov 2011 19:11:10 -0600 (CST) From: Richard Zhao To: , , , , CC: , , , , , , , Richard Zhao Subject: [PATCH V2 01/14] clk: add helper functions clk_prepare_enable and clk_disable_unprepare Date: Fri, 11 Nov 2011 09:10:16 +0800 Message-ID: <1320973829-4388-2-git-send-email-richard.zhao@linaro.org> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1320973829-4388-1-git-send-email-richard.zhao@linaro.org> References: <1320973829-4388-1-git-send-email-richard.zhao@linaro.org> MIME-Version: 1.0 X-OriginatorOrg: sigmatel.com Signed-off-by: Richard Zhao --- include/linux/clk.h | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-) diff --git a/include/linux/clk.h b/include/linux/clk.h index 7213b52..63985f7 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -107,6 +107,25 @@ static inline void clk_unprepare(struct clk *clk) } #endif +static inline int clk_prepare_enable(struct clk *clk) +{ + int ret; + + ret = clk_prepare(clk); + if (!ret) + ret = clk_enable(clk); + if (ret) + clk_unprepare(clk); + + return ret; +} + +static inline void clk_disable_unprepare(struct clk *clk) +{ + clk_disable(clk); + clk_unprepare(clk); +} + /** * clk_get_rate - obtain the current clock rate (in Hz) for a clock source. * This is only valid once the clock source has been enabled.