From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Abraham Subject: [PATCH v5 1/7] cpufreq: cpufreq-cpu0: allow use of optional boost mode frequencies Date: Fri, 23 May 2014 19:57:34 +0530 Message-ID: <1400855260-6807-2-git-send-email-thomas.ab@samsung.com> References: <1400855260-6807-1-git-send-email-thomas.ab@samsung.com> Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=yyglhtngUmvBLShx5K17IooYv70YGWsyuLiDzvSkHNk=; b=ccCJSq8rm6tSGtc0ibFZJGKf2KoK5sLyL9LgReeZbajA0VgLrWBMh5ULZa+ekTTY8v efa5SwLR04CQi9RdMeabK6Pghnh9wMvnDaW73UnroSKIQaSgGzdGsah3CK3mVgCrerR8 xIhMoPkpvUiV7sZNT80ESEMbTGtj3mtF+/TydrveF1Vo5vFwOTFWKaIxf5i9PikKUSVZ mIYWWLoPEsqk4QbMtL6hE7qHyQ4zDI89yOiPPSZ1pxq93CAa2q3hdcFVT6guy5BcMl8R APWsJ1Y2ah39Acd3WzBMxb01gigoTa2uWEyqAQnK0F9O+3QOa2vf4rs8Tm9vDBzfQ7Q7 xj1A== In-Reply-To: <1400855260-6807-1-git-send-email-thomas.ab@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: cpufreq@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org, mturquette@linaro.org, shawn.guo@linaro.org, kgene.kim@samsung.com, t.figa@samsung.com, l.majewski@samsung.com, viresh.kumar@linaro.org, thomas.ab@samsung.com, heiko@sntech.de 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 | 1 + drivers/cpufreq/cpufreq-cpu0.c | 3 +++ 3 files changed, 6 insertions(+) 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..52741b9 100644 --- a/drivers/cpufreq/Kconfig +++ b/drivers/cpufreq/Kconfig @@ -187,6 +187,7 @@ config GENERIC_CPUFREQ_CPU0 tristate "Generic CPU0 cpufreq driver" depends on HAVE_CLK && REGULATOR && OF && THERMAL && CPU_THERMAL select PM_OPP + select CPU_FREQ_BOOST_SW help This adds a generic cpufreq driver for CPU0 frequency management. It supports both uniprocessor (UP) and symmetric multiprocessor (SMP) diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index 1bf6bba..93d3d6d 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -194,6 +194,9 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev) transition_latency += ret * 1000; } + if (of_find_property(cpu_dev->of_node, "boost-frequencies", NULL)) + cpu0_cpufreq_driver.boost_supported = true; + ret = cpufreq_register_driver(&cpu0_cpufreq_driver); if (ret) { pr_err("failed register driver: %d\n", ret); -- 1.7.9.5