From patchwork Wed May 14 01:11:09 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Abraham X-Patchwork-Id: 4171631 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 2C50D9F271 for ; Wed, 14 May 2014 01:12:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 547912034A for ; Wed, 14 May 2014 01:12:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 33D2D20304 for ; Wed, 14 May 2014 01:12:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752502AbaENBMG (ORCPT ); Tue, 13 May 2014 21:12:06 -0400 Received: from mail-pb0-f48.google.com ([209.85.160.48]:52862 "EHLO mail-pb0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751635AbaENBMF (ORCPT ); Tue, 13 May 2014 21:12:05 -0400 Received: by mail-pb0-f48.google.com with SMTP id rr13so957746pbb.21 for ; Tue, 13 May 2014 18:12:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=v1RT4ePQBYZrmeBG1yy1JgeKOVI41qfUV+AYrI0m0fA=; b=RiuFnUUTRzol8hzjxpI0sVik6UftUuUfNIyc5qXheCcd2/UFuuoDLnbrGkV+gVYzRJ bgBmR2BhsgaS3FaSveIktdlu7vyWS/uLAkLK9yR9cFoQriuf6aHnE40Y8qvEDFtK+oWc OzohnxA3ysn38S1XpR3ekBuws7y7zo95zrg+grJ6wpncM+Gn707b16EKcj/P1WcJNoCY UG2mZOfKNAvyCetvWWuW2lSOGV1pYfGantUaJay1jZgRZj1naQYu8NDWKdw1z30SRHcv V9L9xV/z/sDkA+KUQv07FTGJLPPJp558aKYMLPv4Pe7ebK6wxO+rJLRbHujEcFIj0Nb3 lyhQ== X-Received: by 10.66.122.36 with SMTP id lp4mr541715pab.82.1400029923556; Tue, 13 May 2014 18:12:03 -0700 (PDT) Received: from localhost.localdomain ([117.213.250.141]) by mx.google.com with ESMTPSA id tg9sm303528pbc.29.2014.05.13.18.11.52 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Tue, 13 May 2014 18:12:02 -0700 (PDT) X-Google-Original-From: Thomas Abraham From: Thomas Abraham To: cpufreq@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: mturquette@linaro.org, shawn.guo@linaro.org, devicetree@vger.kernel.org, rjw@rjwysocki.net, linux-samsung-soc@vger.kernel.org, kgene.kim@samsung.com, t.figa@samsung.com, l.majewski@samsung.com, viresh.kumar@linaro.org, heiko@sntech.de, thomas.ab@samsung.com Subject: [PATCH v4 1/8] cpufreq: cpufreq-cpu0: allow use of optional boost mode frequencies Date: Wed, 14 May 2014 06:41:09 +0530 Message-Id: <1400029876-5830-2-git-send-email-thomas.ab@samsung.com> X-Mailer: git-send-email 1.7.4.4 In-Reply-To: <1400029876-5830-1-git-send-email-thomas.ab@samsung.com> References: <1400029876-5830-1-git-send-email-thomas.ab@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Thomas Abraham Lookup for the optional boost-frequency property in cpu0 node and if available, enable support for boost mode frequencies. The frequencies usable in boost mode are determined while preparing the cpufreq table from the list of operating points available. Cc: Shawn Guo Cc: Lukasz Majewski Signed-off-by: Thomas Abraham --- .../devicetree/bindings/cpufreq/cpufreq-cpu0.txt | 2 ++ drivers/cpufreq/Kconfig | 11 +++++++++++ drivers/cpufreq/cpufreq-cpu0.c | 5 +++++ 3 files changed, 18 insertions(+), 0 deletions(-) diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt index f055515..60f321a 100644 --- a/Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt +++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt @@ -19,6 +19,8 @@ Optional properties: - cooling-min-level: - cooling-max-level: Please refer to Documentation/devicetree/bindings/thermal/thermal.txt. +- boost-frequency: + Please refer to Documentation/devicetree/bindings/cpufreq/cpufreq-boost.txt Examples: diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig index 1fbe11f..0ca4485 100644 --- a/drivers/cpufreq/Kconfig +++ b/drivers/cpufreq/Kconfig @@ -194,6 +194,17 @@ config GENERIC_CPUFREQ_CPU0 If in doubt, say N. +config GENERIC_CPUFREQ_CPU0_BOOST + bool "Boost frequency support for generic CPU0 cpufreq driver" + depends on GENERIC_CPUFREQ_CPU0 + select CPU_FREQ_BOOST_SW + help + This enables support for software managed overclocking (BOOST). It + allows usage of special frequencies (those beyond the normal operating + frequencies). + + If in doubt, say N. + menu "x86 CPU frequency scaling drivers" depends on X86 source "drivers/cpufreq/Kconfig.x86" diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index 1bf6bba..e6c21a8 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -194,6 +194,11 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev) transition_latency += ret * 1000; } +#ifdef CONFIG_GENERIC_CPUFREQ_CPU0_BOOST + if (of_find_property(cpu_dev->of_node, "boost-frequency", NULL)) + cpu0_cpufreq_driver.boost_supported = true; +#endif + ret = cpufreq_register_driver(&cpu0_cpufreq_driver); if (ret) { pr_err("failed register driver: %d\n", ret);