Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757371Ab3HMKJK (ORCPT ); Tue, 13 Aug 2013 06:09:10 -0400 Received: from mailout2.samsung.com ([203.254.224.25]:10997 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754613Ab3HMKJD (ORCPT ); Tue, 13 Aug 2013 06:09:03 -0400 X-AuditID: cbfee61a-b7f196d000007dfa-9b-520a05bdb64c From: Lukasz Majewski To: Viresh Kumar , "Rafael J. Wysocki" , Zhang Rui , Eduardo Valentin Cc: "cpufreq@vger.kernel.org" , Linux PM list , Jonghwa Lee , Lukasz Majewski , Lukasz Majewski , linux-kernel , Bartlomiej Zolnierkiewicz , Daniel Lezcano , Kukjin Kim , Myungjoo Ham , durgadoss.r@intel.com Subject: [PATCH v7 4/7] cpufreq:boost:Kconfig: Provide support for software managed BOOST Date: Tue, 13 Aug 2013 12:08:22 +0200 Message-id: <1376388505-30233-5-git-send-email-l.majewski@samsung.com> X-Mailer: git-send-email 1.7.10 In-reply-to: <1376388505-30233-1-git-send-email-l.majewski@samsung.com> References: <1370502472-7249-1-git-send-email-l.majewski@samsung.com> <1376388505-30233-1-git-send-email-l.majewski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrMLMWRmVeSWpSXmKPExsVy+t9jAd29rFxBBvMeSlpsnLGe1eJp0w92 i3mfZS36fl5htliz/yeTRefZJ8wWvQuuslm8ecRt8ebhZkaLy7vmsFl87j3CaHG7cQWbRf/C XiaLJw/72Cw2fvVw4PdYvOclk8eda3vYPNZNe8vs0bdlFaPHo8UtjB7Hb2xn8vi8SS6APYrL JiU1J7MstUjfLoEro2c5e8FD4YpjXx4yNzCuEuhi5OSQEDCR+HloEjuELSZx4d56ti5GLg4h gUWMEl+utkI5XUwSjXdfs4BUsQnoSXy++5QJxBYRmMMoceeoO0gRs8ADZonF378wdjFycAgL REs8vWQGUsMioCrx7+ZfZhCbV8BN4sHMh0wQ2+Qlnt7vYwOxOQXcJVb/b4Fa1sQo0XHsMNsE Rt4FjAyrGEVTC5ILipPScw31ihNzi0vz0vWS83M3MYKD9pnUDsaVDRaHGAU4GJV4eAXecwQJ sSaWFVfmHmKU4GBWEuGNY+QKEuJNSaysSi3Kjy8qzUktPsQozcGiJM57oNU6UEggPbEkNTs1 tSC1CCbLxMEp1cAoweBY6vLzhnCxl9snRbYrGT3PzRUZeRMWRuxy/Od599qGrdFzZ0odFAoM jTaQSdt/eE9K7TmD5V9/XkkO2139frLOvl05p/qlUm7ErnafKdoekzBnhky37K7kfTsmMEnJ t26f/fLMzxetCjH9PdNvH1HeXFYh4ef/VLnuiaGAd0qM1g8+vedKLMUZiYZazEXFiQDKeM/D VgIAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2696 Lines: 83 For safety reasons new flag - CONFIG_CPU_FREQ_BOOST_SW has been added. Only after selecting "EXYNOS Frequency Overclocking - Software" Kconfig option the software managed boost is enabled. It also selects thermal subsystem to be compiled in. Thermal is necessary for disabling boost and cooling down the device when overheating detected. Boost _MUST_NOT_ work without thermal subsystem with properly defined overheating temperatures. This option doesn't affect x86's ACPI hardware managed boost support (i.e. Intel, AMD). In this situation boost management is embedded at hardware. Signed-off-by: Lukasz Majewski Signed-off-by: Myungjoo Ham --- Changes for v7: - Remove superfluous "default n" definition - Generic CPU_FREQ_BOOST_SW depends on THERMAL Changes for v6: - CPU_FREQ_BOOST_SW [1] is now defined as "invisible" bool option. - Platform dependent ARM_EXYNOS_CPU_FREQ_BOOST_SW config option has been added. It depends on ARM_EXYNOS_CPUFREQ options and selects EXYNOS_THERMAL with the main boost config [1]. Changes for v5: - New patch drivers/cpufreq/Kconfig | 4 ++++ drivers/cpufreq/Kconfig.arm | 15 +++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig index 534fcb8..e3cbf72 100644 --- a/drivers/cpufreq/Kconfig +++ b/drivers/cpufreq/Kconfig @@ -23,6 +23,10 @@ config CPU_FREQ_TABLE config CPU_FREQ_GOV_COMMON bool +config CPU_FREQ_BOOST_SW + bool + depends on THERMAL + config CPU_FREQ_STAT tristate "CPU frequency translation statistics" select CPU_FREQ_TABLE diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index 0fa204b..6a6d173 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -67,6 +67,21 @@ config ARM_EXYNOS5440_CPUFREQ If in doubt, say N. +config ARM_EXYNOS_CPU_FREQ_BOOST_SW + bool "EXYNOS Frequency Overclocking - Software" + depends on ARM_EXYNOS_CPUFREQ + select CPU_FREQ_BOOST_SW + select EXYNOS_THERMAL + help + This driver supports software managed overclocking (BOOST). + It allows usage of special frequencies for Samsung Exynos + processors if thermal conditions are appropriate. + + It reguires, for safe operation, thermal framework with properly + defined trip points. + + If in doubt, say N. + config ARM_HIGHBANK_CPUFREQ tristate "Calxeda Highbank-based" depends on ARCH_HIGHBANK -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/