From patchwork Mon Feb 18 08:21:21 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Abraham X-Patchwork-Id: 2156501 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id 35B413FCFC for ; Mon, 18 Feb 2013 08:28:21 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1U7M2l-0007RZ-Bl; Mon, 18 Feb 2013 08:25:47 +0000 Received: from mail-pb0-f54.google.com ([209.85.160.54]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1U7Lzd-0005Rp-BB for linux-arm-kernel@lists.infradead.org; Mon, 18 Feb 2013 08:22:36 +0000 Received: by mail-pb0-f54.google.com with SMTP id rr4so1543381pbb.13 for ; Mon, 18 Feb 2013 00:22:32 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references:x-gm-message-state; bh=rkwd0gI+W5wmRRRuTuA0di/NibymzVn4qmTNwT2asbI=; b=PWn0IPEvgiO8iS+vpqTCzDctmWMdBcA8UkSLlxTti3Em2vAzIO2NaZ0lw/3p1AeDce IhnoBfZ8aXiFKcMZ0NPPZlL9/YABC4ArfPadPY+iTxMiYbnY4pFebbvy37bk0YCnwjGy bkmM2qUHpZlCji6tXz3IMoPmuam0a/aQPNZQxLq3Z61/9HJweVJB71R2hH7RBFrlaQlD Ws7oUOavodMepaoiEaWoA8CFPozVSnXgW2I6wLBx6SgeagFKDntAE8hGjCymTL+xnyX2 STIr6Cd1MRT+m33z1cEeUpa7T4fKGu82DVMgg/y/DCz1rjUaFk8zIW5oZHE3t5Xd1xp3 i/nA== X-Received: by 10.66.187.204 with SMTP id fu12mr33730472pac.43.1361175751907; Mon, 18 Feb 2013 00:22:31 -0800 (PST) Received: from localhost.localdomain ([115.113.119.130]) by mx.google.com with ESMTPS id hp7sm13733707pbc.8.2013.02.18.00.22.28 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 18 Feb 2013 00:22:31 -0800 (PST) From: Thomas Abraham To: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH v6 11/16] clocksource: mct: add support for mct clock setup Date: Mon, 18 Feb 2013 13:51:21 +0530 Message-Id: <1361175686-19400-12-git-send-email-thomas.abraham@linaro.org> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1361175686-19400-1-git-send-email-thomas.abraham@linaro.org> References: <1361175686-19400-1-git-send-email-thomas.abraham@linaro.org> X-Gm-Message-State: ALoCoQlxBtrv4R07K1zT2QtbNKFI+HNrKZEclldQ88u1mzgMlqG1gbHgweU1TsVlnzc+HyegCIlg X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130218_032233_506828_905BB194 X-CRM114-Status: GOOD ( 11.86 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.160.54 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: devicetree-discuss@lists.ozlabs.org, kgene.kim@samsung.com, mturquette@linaro.org, t.figa@samsung.com, sylvester.nawrocki@gmail.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add support for mct clock lookup and setup to ensure that the mct clock is has been turned on. Cc: Kukjin Kim Signed-off-by: Thomas Abraham --- drivers/clocksource/exynos_mct.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index 8f84c42..43e39b5 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -480,7 +480,7 @@ static struct local_timer_ops exynos4_mct_tick_ops __cpuinitdata = { static void __init exynos4_timer_resources(struct device_node *np) { - struct clk *tick_clk; + struct clk *mct_clk, *tick_clk; tick_clk = np ? of_clk_get_by_name(np, "fin_pll") : clk_get(NULL, "fin_pll"); @@ -488,6 +488,11 @@ static void __init exynos4_timer_resources(struct device_node *np) panic("%s: unable to determine tick clock rate\n", __func__); clk_rate = clk_get_rate(tick_clk); + mct_clk = np ? of_clk_get_by_name(np, "mct") : clk_get(NULL, "mct"); + if (IS_ERR(mct_clk)) + panic("%s: unable to retrieve mct clock instance\n", __func__); + clk_prepare_enable(mct_clk); + reg_base = np ? of_iomap(np, 0) : S5P_VA_SYSTIMER; if (!reg_base) panic("%s: unable to ioremap mct address space\n", __func__);