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linux/drivers/cpufreq/Kconfig.arm

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treewide: Add SPDX license identifier - Makefile/Kconfig Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-19 05:07:45 -07:00
# SPDX-License-Identifier: GPL-2.0-only
[CPUFREQ] Move ARM Samsung cpufreq drivers to drivers/cpufreq/ According to discussion of the ARM arch subsystem migration, ARM cpufreq drivers move to drivers/cpufreq. So this patch adds Kconfig.arm for ARM like x86 and adds Samsung S5PV210 and EXYNOS4210 cpufreq driver compile in there. As a note, otherw will be moved. Cc: Dave Jones <davej@redhat.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-06-01 14:18:22 -07:00
#
# ARM CPU Frequency scaling drivers
#
cpufreq: Add sun50i nvmem based CPU scaling driver For some SoCs, the CPU frequency subset and voltage value of each OPP varies based on the silicon variant in use. The sun50i-cpufreq-nvmem driver reads the efuse value from the SoC to provide the OPP framework with required information. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-06-12 09:28:15 -07:00
config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
tristate "Allwinner nvmem based SUN50I CPUFreq driver"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_SUNXI || COMPILE_TEST
cpufreq: Add sun50i nvmem based CPU scaling driver For some SoCs, the CPU frequency subset and voltage value of each OPP varies based on the silicon variant in use. The sun50i-cpufreq-nvmem driver reads the efuse value from the SoC to provide the OPP framework with required information. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-06-12 09:28:15 -07:00
depends on NVMEM_SUNXI_SID
select PM_OPP
help
This adds the nvmem based CPUFreq driver for Allwinner
h6 SoC.
To compile this driver as a module, choose M here: the
module will be called sun50i-cpufreq-nvmem.
cpufreq: apple-soc: Add new driver to control Apple SoC CPU P-states This driver implements CPU frequency scaling for Apple Silicon SoCs, including M1 (t8103), M1 Max/Pro/Ultra (t600x), and M2 (t8112). Each CPU cluster has its own register set, and frequency management is fully automated by the hardware; the driver only has to write one register. There is boost frequency support, but the hardware will only allow their use if only a subset of cores in a cluster are in non-deep-idle. Since we don't support deep idle yet, these frequencies are not achievable, but the driver supports them. They will remain disabled in the device tree until deep idle is implemented, to avoid confusing users. This driver does not yet implement the memory controller performance state tuning that usually accompanies higher CPU p-states. This will be done in a future patch. Acked-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Hector Martin <marcan@marcan.st> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2022-11-28 07:29:11 -07:00
config ARM_APPLE_SOC_CPUFREQ
tristate "Apple Silicon SoC CPUFreq support"
depends on ARCH_APPLE || (COMPILE_TEST && 64BIT)
select PM_OPP
default ARCH_APPLE
help
This adds the CPUFreq driver for Apple Silicon machines
(e.g. Apple M1).
cpufreq: Add DVFS support for Armada 37xx This patch adds DVFS support for the Armada 37xx SoCs There are up to four CPU frequency loads for Armada 37xx controlled by the hardware. This driver associates the CPU load level to a frequency, then the hardware will switch while selecting a load level. The hardware also can associate a voltage for each level (AVS support) but it is not yet supported Tested-by: Andre Heider <a.heider@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-12-14 08:00:05 -07:00
config ARM_ARMADA_37XX_CPUFREQ
tristate "Armada 37xx CPUFreq support"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_MVEBU || COMPILE_TEST
depends on CPUFREQ_DT
cpufreq: Add DVFS support for Armada 37xx This patch adds DVFS support for the Armada 37xx SoCs There are up to four CPU frequency loads for Armada 37xx controlled by the hardware. This driver associates the CPU load level to a frequency, then the hardware will switch while selecting a load level. The hardware also can associate a voltage for each level (AVS support) but it is not yet supported Tested-by: Andre Heider <a.heider@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-12-14 08:00:05 -07:00
help
This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
The Armada 37xx PMU supports 4 frequency and VDD levels.
cpufreq: ap806: add cpufreq driver for Armada 8K Add cpufreq driver for Marvell AP-806 found on Aramda 8K. The AP-806 has DFS (Dynamic Frequency Scaling) with coupled clock domain for two clusters, so this driver will directly use generic cpufreq-dt driver as backend. Based on the work of Omri Itach <omrii@marvell.com>. Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-01-18 07:51:01 -07:00
config ARM_ARMADA_8K_CPUFREQ
tristate "Armada 8K CPUFreq driver"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_MVEBU || COMPILE_TEST
depends on CPUFREQ_DT
select ARMADA_AP_CPU_CLK if COMMON_CLK
cpufreq: ap806: add cpufreq driver for Armada 8K Add cpufreq driver for Marvell AP-806 found on Aramda 8K. The AP-806 has DFS (Dynamic Frequency Scaling) with coupled clock domain for two clusters, so this driver will directly use generic cpufreq-dt driver as backend. Based on the work of Omri Itach <omrii@marvell.com>. Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-01-18 07:51:01 -07:00
help
This enables the CPUFreq driver support for Marvell
Armada8k SOCs.
Armada8K device has the AP806 which supports scaling
to any full integer divider.
If in doubt, say N.
cpufreq: ARM: sort the Kconfig menu Group all the related big LITTLE configuration together and sort the other entries in alphabetic order. Also fixing tab vs space issue while mofifying these entries. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-12-13 10:05:35 -07:00
config ARM_SCPI_CPUFREQ
tristate "SCPI based CPUfreq driver"
cpufreq: scpi: Fix incorrect arm_big_little config dependency Commit 343a8d17fa8d (cpufreq: scpi: remove arm_big_little dependency) removed the SCPI cpufreq dependency on arm_big_little cpufreq driver. However the Kconfig entry still depends on ARM_BIG_LITTLE_CPUFREQ which is clearly wrong. This patch removes that unnecessary Kconfig dependency. Fixes: 343a8d17fa8d (cpufreq: scpi: remove arm_big_little dependency) Reported-by: Quentin Perret <quentin.perret@arm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-23 08:54:42 -07:00
depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
cpufreq: ARM: sort the Kconfig menu Group all the related big LITTLE configuration together and sort the other entries in alphabetic order. Also fixing tab vs space issue while mofifying these entries. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-12-13 10:05:35 -07:00
help
cpufreq: scpi: Fix incorrect arm_big_little config dependency Commit 343a8d17fa8d (cpufreq: scpi: remove arm_big_little dependency) removed the SCPI cpufreq dependency on arm_big_little cpufreq driver. However the Kconfig entry still depends on ARM_BIG_LITTLE_CPUFREQ which is clearly wrong. This patch removes that unnecessary Kconfig dependency. Fixes: 343a8d17fa8d (cpufreq: scpi: remove arm_big_little dependency) Reported-by: Quentin Perret <quentin.perret@arm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-23 08:54:42 -07:00
This adds the CPUfreq driver support for ARM platforms using SCPI
protocol for CPU power management.
cpufreq: ARM: sort the Kconfig menu Group all the related big LITTLE configuration together and sort the other entries in alphabetic order. Also fixing tab vs space issue while mofifying these entries. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-12-13 10:05:35 -07:00
This driver uses SCPI Message Protocol driver to interact with the
firmware providing the CPU DVFS functionality.
config ARM_VEXPRESS_SPC_CPUFREQ
tristate "Versatile Express SPC based CPUfreq driver"
cpufreq: merge arm_big_little and vexpress-spc arm_big_little cpufreq driver was designed as a generic big little driver that could be used by any platform and make use of bL switcher. Over years alternate solutions have been designed and merged to deal with bL/HMP systems like EAS. Also since no other driver made use of generic arm_big_little cpufreq driver except Vexpress SPC, we can merge them together as vexpress-spc driver used only on Vexpress TC2(CA15_CA7) platform. Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-10-21 03:20:34 -07:00
depends on ARM_CPU_TOPOLOGY && HAVE_CLK
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_VEXPRESS_SPC || COMPILE_TEST
cpufreq: merge arm_big_little and vexpress-spc arm_big_little cpufreq driver was designed as a generic big little driver that could be used by any platform and make use of bL switcher. Over years alternate solutions have been designed and merged to deal with bL/HMP systems like EAS. Also since no other driver made use of generic arm_big_little cpufreq driver except Vexpress SPC, we can merge them together as vexpress-spc driver used only on Vexpress TC2(CA15_CA7) platform. Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-10-21 03:20:34 -07:00
select PM_OPP
cpufreq: ARM: sort the Kconfig menu Group all the related big LITTLE configuration together and sort the other entries in alphabetic order. Also fixing tab vs space issue while mofifying these entries. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-12-13 10:05:35 -07:00
help
This add the CPUfreq driver support for Versatile Express
big.LITTLE platforms using SPC for power management.
cpufreq: brcmstb-avs-cpufreq: AVS CPUfreq driver for Broadcom STB SoCs This driver supports voltage and frequency scaling on Broadcom STB SoCs using AVS firmware with DFS and DVFS support. Actual frequency or voltage scaling is done exclusively by the AVS firmware. The driver merely provides a standard CPUfreq interface to other kernel components and userland, and instructs the AVS firmware to perform frequency or voltage changes on its behalf. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-27 14:05:35 -07:00
config ARM_BRCMSTB_AVS_CPUFREQ
tristate "Broadcom STB AVS CPUfreq driver"
cpufreq: ARM_BRCMSTB_AVS_CPUFREQ cannot be used with ARM_SCMI_CPUFREQ The brcmstb-avs-cpufreq driver is considered a legacy driver and since 2018, ARCH_BRCMSTB systems have been using scmi-cpufreq. As a matter of fact, when SCMI is in use, brcmstb-avs-cpufreq is unusable since the SCMI firmware takes over, this can result in various problems, including external synchronous aborts. Express those constraints such that the driver is not enabled by default when SCMI CPU frequency scaling is in use. Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-11 09:46:54 -07:00
depends on (ARCH_BRCMSTB && !ARM_SCMI_CPUFREQ) || COMPILE_TEST
cpufreq: brcmstb-avs-cpufreq: AVS CPUfreq driver for Broadcom STB SoCs This driver supports voltage and frequency scaling on Broadcom STB SoCs using AVS firmware with DFS and DVFS support. Actual frequency or voltage scaling is done exclusively by the AVS firmware. The driver merely provides a standard CPUfreq interface to other kernel components and userland, and instructs the AVS firmware to perform frequency or voltage changes on its behalf. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-27 14:05:35 -07:00
default y
help
Some Broadcom STB SoCs use a co-processor running proprietary firmware
("AVS") to handle voltage and frequency scaling. This driver provides
cpufreq: Fix typo in the ARM_BRCMSTB_AVS_CPUFREQ Kconfig entry Delete the redundant word 'to' from the help text in the ARM_BRCMSTB_AVS_CPUFREQ Kconfig entry. Signed-off-by: Jingyu Wang <jingyuwang_vip@163.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-03-08 05:28:30 -07:00
a standard CPUfreq interface to the firmware.
cpufreq: brcmstb-avs-cpufreq: AVS CPUfreq driver for Broadcom STB SoCs This driver supports voltage and frequency scaling on Broadcom STB SoCs using AVS firmware with DFS and DVFS support. Actual frequency or voltage scaling is done exclusively by the AVS firmware. The driver merely provides a standard CPUfreq interface to other kernel components and userland, and instructs the AVS firmware to perform frequency or voltage changes on its behalf. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-27 14:05:35 -07:00
Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
cpufreq: ARM: Arrange drivers in alphabetical order Normally we keep drivers in alphabetical inside Kconfig and Makefile and over time this was broken for ARM cpufreq drivers. Fix it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-04 05:54:09 -07:00
config ARM_HIGHBANK_CPUFREQ
tristate "Calxeda Highbank-based"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_HIGHBANK || COMPILE_TEST
depends on CPUFREQ_DT && REGULATOR && PL320_MBOX
cpufreq: ARM: Arrange drivers in alphabetical order Normally we keep drivers in alphabetical inside Kconfig and Makefile and over time this was broken for ARM cpufreq drivers. Fix it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-04 05:54:09 -07:00
default m
help
This adds the CPUFreq driver for Calxeda Highbank SoC
based boards.
If in doubt, say N.
config ARM_IMX6Q_CPUFREQ
cpufreq: imx6q-cpufreq driver is reused on i.MX6 series SoCs The imx6q-cpufreq driver nowadays is not only running on imx6q but also other i.MX6 series SoCs like imx6dl and imx6sl. Update Kconfig prompt and help text to make it clear to users. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-12-19 19:12:16 -07:00
tristate "Freescale i.MX6 cpufreq support"
depends on ARCH_MXC
cpufreq: ARM: Arrange drivers in alphabetical order Normally we keep drivers in alphabetical inside Kconfig and Makefile and over time this was broken for ARM cpufreq drivers. Fix it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-04 05:54:09 -07:00
depends on REGULATOR_ANATOP
cpufreq: imx: fix NVMEM_IMX_OCOTP dependency A driver should not 'select' drivers from another subsystem. If NVMEM is disabled, this one results in a warning: WARNING: unmet direct dependencies detected for NVMEM_IMX_OCOTP Depends on [n]: NVMEM [=n] && (ARCH_MXC [=y] || COMPILE_TEST [=y]) && HAS_IOMEM [=y] Selected by [y]: - ARM_IMX6Q_CPUFREQ [=y] && CPU_FREQ [=y] && (ARM || ARM64 [=y]) && ARCH_MXC [=y] && REGULATOR_ANATOP [=y] Change the 'select' to 'depends on' to prevent it from going wrong, and allow compile-testing without that driver, since it is only a runtime dependency. Fixes: 2782ef34ed23 ("cpufreq: imx: Select NVMEM_IMX_OCOTP") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-12-03 15:53:32 -07:00
depends on NVMEM_IMX_OCOTP || COMPILE_TEST
cpufreq: imx6q: Select PM_OPP PM_OPP is a library used by several of the existing cpufreq drivers. ARM IMX6Q cpufreq driver uses this library for its functionality. Thus, it should be selected in Kconfig. Reported-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by: Nicolas Del Piano <ndel314@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-13 14:59:00 -07:00
select PM_OPP
cpufreq: ARM: Arrange drivers in alphabetical order Normally we keep drivers in alphabetical inside Kconfig and Makefile and over time this was broken for ARM cpufreq drivers. Fix it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-04 05:54:09 -07:00
help
cpufreq: imx6q-cpufreq driver is reused on i.MX6 series SoCs The imx6q-cpufreq driver nowadays is not only running on imx6q but also other i.MX6 series SoCs like imx6dl and imx6sl. Update Kconfig prompt and help text to make it clear to users. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-12-19 19:12:16 -07:00
This adds cpufreq driver support for Freescale i.MX6 series SoCs.
cpufreq: ARM: Arrange drivers in alphabetical order Normally we keep drivers in alphabetical inside Kconfig and Makefile and over time this was broken for ARM cpufreq drivers. Fix it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-04 05:54:09 -07:00
If in doubt, say N.
cpufreq: Add imx-cpufreq-dt driver Right now in upstream imx8m cpufreq support just lists a common subset of OPPs because the higher ones should only be attempted after checking speed grading in fuses. Add a small driver which checks speed grading from nvmem cells before registering cpufreq-dt. This driver allows unlocking all frequencies for imx8mm and imx8mq and could be applied to other chips like imx7d Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-05-13 04:01:38 -07:00
config ARM_IMX_CPUFREQ_DT
tristate "Freescale i.MX8M cpufreq support"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on CPUFREQ_DT
depends on ARCH_MXC || COMPILE_TEST
cpufreq: Add imx-cpufreq-dt driver Right now in upstream imx8m cpufreq support just lists a common subset of OPPs because the higher ones should only be attempted after checking speed grading in fuses. Add a small driver which checks speed grading from nvmem cells before registering cpufreq-dt. This driver allows unlocking all frequencies for imx8mm and imx8mq and could be applied to other chips like imx7d Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-05-13 04:01:38 -07:00
help
cpufreq: arm: Kconfig: Add i.MX7 to supported SoC for ARM_IMX_CPUFREQ_DT Since commit a5a9dffcc903 ("ARM: imx: Switch imx7d to imx-cpufreq-dt for speed-grading") i.MX7 uses this driver as well. Add it to the description text. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-23 02:47:01 -07:00
This adds cpufreq driver support for Freescale i.MX7/i.MX8M
series SoCs, based on cpufreq-dt.
cpufreq: Add imx-cpufreq-dt driver Right now in upstream imx8m cpufreq support just lists a common subset of OPPs because the higher ones should only be attempted after checking speed grading in fuses. Add a small driver which checks speed grading from nvmem cells before registering cpufreq-dt. This driver allows unlocking all frequencies for imx8mm and imx8mq and could be applied to other chips like imx7d Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-05-13 04:01:38 -07:00
If in doubt, say N.
cpufreq: ARM: Arrange drivers in alphabetical order Normally we keep drivers in alphabetical inside Kconfig and Makefile and over time this was broken for ARM cpufreq drivers. Fix it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-04 05:54:09 -07:00
config ARM_KIRKWOOD_CPUFREQ
cpufreq: Remove ARCH_KIRKWOOD dependency mach-kirkwood has been removed, now that kirkwood lives in mach-mvebu. ARCH_MVEBU is sufficient. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: "Rafael J. Wysocki" <rjw@rjwysocki.net> Link: https://lkml.kernel.org/r/1409417172-6846-8-git-send-email-andrew@lunn.ch Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-08-30 09:46:12 -07:00
def_bool MACH_KIRKWOOD
cpufreq: ARM: Arrange drivers in alphabetical order Normally we keep drivers in alphabetical inside Kconfig and Makefile and over time this was broken for ARM cpufreq drivers. Fix it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-04 05:54:09 -07:00
help
This adds the CPUFreq driver for Marvell Kirkwood
SoCs.
cpufreq: mediatek: Add support of cpufreq to MT2701/MT7623 SoC MT2701/MT7623 is a 32-bit ARMv7 based quad-core (4 * Cortex-A7) with single cluster and this hardware is also compatible with the existing driver through enabling CPU frequency feature with operating-points-v2 bindings. Also, this driver actually supports all MediaTek SoCs, the Kconfig menu entry and file name itself should be updated with more generic name to drop "MT8173" Signed-off-by: Sean Wang <sean.wang@mediatek.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-07-17 23:01:43 -07:00
config ARM_MEDIATEK_CPUFREQ
tristate "CPU Frequency scaling support for MediaTek SoCs"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_MEDIATEK || COMPILE_TEST
depends on REGULATOR
cpufreq: mediatek: Add MT8173 cpufreq driver Mediatek MT8173 is an ARMv8 based quad-core (2*Cortex-A53 and 2*Cortex-A72) SoC with duall clusters. For each cluster, two voltage inputs, Vproc and Vsram are supplied by two regulators. For the big cluster, two regulators come from different PMICs. In this case, when scaling voltage inputs of the cluster, the voltages of two regulator inputs need to be controlled by software explicitly under the SoC specific limitation: 100mV < Vsram - Vproc < 200mV which is called 'voltage tracking' mechanism. And when scaling the frequency of cluster clock input, the input MUX need to be parented to another "intermediate" stable PLL first and reparented to the original PLL once the original PLL is stable at the target frequency. This patch implements those mechanisms to enable CPU DVFS support for Mediatek MT8173 SoC. Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-18 19:05:06 -07:00
select PM_OPP
help
cpufreq: mediatek: Add support of cpufreq to MT2701/MT7623 SoC MT2701/MT7623 is a 32-bit ARMv7 based quad-core (4 * Cortex-A7) with single cluster and this hardware is also compatible with the existing driver through enabling CPU frequency feature with operating-points-v2 bindings. Also, this driver actually supports all MediaTek SoCs, the Kconfig menu entry and file name itself should be updated with more generic name to drop "MT8173" Signed-off-by: Sean Wang <sean.wang@mediatek.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-07-17 23:01:43 -07:00
This adds the CPUFreq driver support for MediaTek SoCs.
cpufreq: mediatek: Add MT8173 cpufreq driver Mediatek MT8173 is an ARMv8 based quad-core (2*Cortex-A53 and 2*Cortex-A72) SoC with duall clusters. For each cluster, two voltage inputs, Vproc and Vsram are supplied by two regulators. For the big cluster, two regulators come from different PMICs. In this case, when scaling voltage inputs of the cluster, the voltages of two regulator inputs need to be controlled by software explicitly under the SoC specific limitation: 100mV < Vsram - Vproc < 200mV which is called 'voltage tracking' mechanism. And when scaling the frequency of cluster clock input, the input MUX need to be parented to another "intermediate" stable PLL first and reparented to the original PLL once the original PLL is stable at the target frequency. This patch implements those mechanisms to enable CPU DVFS support for Mediatek MT8173 SoC. Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-18 19:05:06 -07:00
cpufreq: mediatek-hw: Add support for CPUFREQ HW Introduce cpufreq HW driver which can support CPU frequency adjust in MT6779 platform. Signed-off-by: Hector.Yuan <hector.yuan@mediatek.com> [ Viresh: Massaged the patch and cleaned some stuff. ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2021-09-03 01:39:24 -07:00
config ARM_MEDIATEK_CPUFREQ_HW
tristate "MediaTek CPUFreq HW driver"
depends on ARCH_MEDIATEK || COMPILE_TEST
default m
help
Support for the CPUFreq HW driver.
Some MediaTek chipsets have a HW engine to offload the steps
necessary for changing the frequency of the CPUs. Firmware loaded
in this engine exposes a programming interface to the OS.
The driver implements the cpufreq interface for this HW engine.
Say Y if you want to support CPUFreq HW.
cpufreq: OMAP driver depends CPUfreq tables The OMAP driver depends on CPUfreq table support for creating a table of frequencies from the OPP layer. Ensure that it's build to avoid link-time errors. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> [khilman@ti.com: make user-selectable, but default y] Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-02-15 12:01:11 -07:00
config ARM_OMAP2PLUS_CPUFREQ
bool "TI OMAP2+"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_OMAP2PLUS || COMPILE_TEST
cpufreq: OMAP driver depends CPUfreq tables The OMAP driver depends on CPUfreq table support for creating a table of frequencies from the OPP layer. Ensure that it's build to avoid link-time errors. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> [khilman@ti.com: make user-selectable, but default y] Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-02-15 12:01:11 -07:00
default ARCH_OMAP2PLUS
cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs The kryo cpufreq driver reads the nvmem cell and uses that data to populate the opps. There are other qcom cpufreq socs like krait which does similar thing. Except for the interpretation of the read data, rest of the driver is same for both the cases. So pull the common things out for reuse. Signed-off-by: Sricharan R <sricharan@codeaurora.org> [niklas.cassel@linaro.org: split dt-binding into a separate patch and do not rename the compatible string. Update MAINTAINERS file.] Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org> Reviewed-by: Ilia Lin <ilia.lin@kernel.org> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-07-25 03:41:31 -07:00
config ARM_QCOM_CPUFREQ_NVMEM
tristate "Qualcomm nvmem based CPUFreq"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_QCOM || COMPILE_TEST
nvmem: prefix all symbols with NVMEM_ This unifies all NVMEM symbols. They follow one style now. Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20220916122100.170016-8-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-16 05:20:54 -07:00
depends on NVMEM_QCOM_QFPROM
cpufreq: Add Kryo CPU scaling driver In Certain QCOM SoCs like apq8096 and msm8996 that have KRYO processors, the CPU frequency subset and voltage value of each OPP varies based on the silicon variant in use. Qualcomm Process Voltage Scaling Tables defines the voltage and frequency value based on the msm-id in SMEM and speedbin blown in the efuse combination. The qcom-cpufreq-kryo driver reads the msm-id and efuse value from the SoC to provide the OPP framework with required information. This is used to determine the voltage and frequency value for each OPP of operating-points-v2 table when it is parsed by the OPP framework. Signed-off-by: Ilia Lin <ilialin@codeaurora.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Tested-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-05-29 19:39:28 -07:00
depends on QCOM_SMEM
select PM_OPP
help
This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
If in doubt, say N.
cpufreq: qcom-hw: Add support for QCOM cpufreq HW driver The CPUfreq HW present in some QCOM chipsets offloads the steps necessary for changing the frequency of CPUs. The driver implements the cpufreq driver interface for this hardware engine. Signed-off-by: Saravana Kannan <skannan@codeaurora.org> Signed-off-by: Taniya Das <tdas@codeaurora.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Tested-by: Stephen Boyd <swboyd@chromium.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Tested-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-12-13 21:10:24 -07:00
config ARM_QCOM_CPUFREQ_HW
tristate "QCOM CPUFreq HW driver"
depends on ARCH_QCOM || COMPILE_TEST
cpufreq: qcom-hw: add CONFIG_COMMON_CLK dependency It is still possible to compile-test a kernel without CONFIG_COMMON_CLK for some ancient ARM boards or other architectures, but this causes a link failure in the qcom-cpufreq-hw driver: ERROR: modpost: "devm_clk_hw_register" [drivers/cpufreq/qcom-cpufreq-hw.ko] undefined! ERROR: modpost: "devm_of_clk_add_hw_provider" [drivers/cpufreq/qcom-cpufreq-hw.ko] undefined! ERROR: modpost: "of_clk_hw_onecell_get" [drivers/cpufreq/qcom-cpufreq-hw.ko] undefined! Add a Kconfig dependency here to make sure this always work. Apparently this bug has been in the kernel for a while without me running into it on randconfig builds as COMMON_CLK is almost always enabled. I have cross-checked by building an allmodconfig kernel with COMMON_CLK disabled, which showed no other driver having this problem. Fixes: 4370232c727b ("cpufreq: qcom-hw: Add CPU clock provider support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-02-15 01:33:14 -07:00
depends on COMMON_CLK
cpufreq: qcom-hw: Add support for QCOM cpufreq HW driver The CPUfreq HW present in some QCOM chipsets offloads the steps necessary for changing the frequency of CPUs. The driver implements the cpufreq driver interface for this hardware engine. Signed-off-by: Saravana Kannan <skannan@codeaurora.org> Signed-off-by: Taniya Das <tdas@codeaurora.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Tested-by: Stephen Boyd <swboyd@chromium.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Tested-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-12-13 21:10:24 -07:00
help
Support for the CPUFreq HW driver.
Some QCOM chipsets have a HW engine to offload the steps
necessary for changing the frequency of the CPUs. Firmware loaded
in this engine exposes a programming interface to the OS.
The driver implements the cpufreq interface for this HW engine.
Say Y if you want to support CPUFreq HW.
cpufreq: add driver for Raspberry Pi Raspberry Pi's firmware offers and interface though which update it's performance requirements. It allows us to request for specific runtime frequencies, which the firmware might or might not respect, depending on the firmware configuration and thermals. As the maximum and minimum frequencies are configurable in the firmware there is no way to know in advance their values. So the Raspberry Pi cpufreq driver queries them, builds an opp frequency table to then launch cpufreq-dt. Also, as the firmware interface might be configured as a module, making the cpu clock unavailable during init, this implements a full fledged driver, as opposed to most drivers registering cpufreq-dt, which only make use of an init routine. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Acked-by: Eric Anholt <eric@anholt.net> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-06-12 11:24:56 -07:00
config ARM_RASPBERRYPI_CPUFREQ
tristate "Raspberry Pi cpufreq support"
depends on CLK_RASPBERRYPI || COMPILE_TEST
help
This adds the CPUFreq driver for Raspberry Pi
If in doubt, say N.
[CPUFREQ] Move compile for S3C64XX cpufreq to /drivers/cpufreq Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-06-06 18:43:01 -07:00
config ARM_S3C64XX_CPUFREQ
bool "Samsung S3C64XX"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on CPU_S3C6410 || COMPILE_TEST
[CPUFREQ] Move compile for S3C64XX cpufreq to /drivers/cpufreq Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-06-06 18:43:01 -07:00
default y
help
This adds the CPUFreq driver for Samsung S3C6410 SoC.
If in doubt, say N.
[CPUFREQ] Move ARM Samsung cpufreq drivers to drivers/cpufreq/ According to discussion of the ARM arch subsystem migration, ARM cpufreq drivers move to drivers/cpufreq. So this patch adds Kconfig.arm for ARM like x86 and adds Samsung S5PV210 and EXYNOS4210 cpufreq driver compile in there. As a note, otherw will be moved. Cc: Dave Jones <davej@redhat.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-06-01 14:18:22 -07:00
config ARM_S5PV210_CPUFREQ
bool "Samsung S5PV210 and S5PC110"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on CPU_S5PV210 || COMPILE_TEST
[CPUFREQ] Move ARM Samsung cpufreq drivers to drivers/cpufreq/ According to discussion of the ARM arch subsystem migration, ARM cpufreq drivers move to drivers/cpufreq. So this patch adds Kconfig.arm for ARM like x86 and adds Samsung S5PV210 and EXYNOS4210 cpufreq driver compile in there. As a note, otherw will be moved. Cc: Dave Jones <davej@redhat.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-06-01 14:18:22 -07:00
default y
help
This adds the CPUFreq driver for Samsung S5PV210 and
S5PC110 SoCs.
If in doubt, say N.
cpufreq: sa11x0: move cpufreq driver to drivers/cpufreq This patch moves cpufreq driver of ARM based sa11x0 platform to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-04 05:54:16 -07:00
config ARM_SA1110_CPUFREQ
bool
cpufreq: add support for CPU DVFS based on SCMI message protocol On some ARM based systems, a separate Cortex-M based System Control Processor(SCP) provides the overall power, clock, reset and system control including CPU DVFS. SCMI Message Protocol is used to communicate with the SCP. This patch adds a cpufreq driver for such systems using SCMI interface to drive CPU DVFS. Cc: linux-pm@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2017-06-18 01:38:11 -07:00
config ARM_SCMI_CPUFREQ
tristate "SCMI based CPUfreq driver"
depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
select PM_OPP
help
This adds the CPUfreq driver support for ARM platforms using SCMI
protocol for CPU power management.
This driver uses SCMI Message Protocol driver to interact with the
firmware providing the CPU DVFS functionality.
cpufreq: SPEAr: Add CPUFreq driver SPEAr is an ARM based family of SoCs. This patch adds in support of cpufreq driver for SPEAr SoCs. It is supported via DT only and so bindings are present in binding document. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-27 06:05:26 -07:00
config ARM_SPEAR_CPUFREQ
bool "SPEAr CPUFreq support"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on PLAT_SPEAR || COMPILE_TEST
cpufreq: SPEAr: Add CPUFreq driver SPEAr is an ARM based family of SoCs. This patch adds in support of cpufreq driver for SPEAr SoCs. It is supported via DT only and so bindings are present in binding document. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-27 06:05:26 -07:00
default y
help
This adds the CPUFreq driver support for SPEAr SOCs.
cpufreq: tegra: create CONFIG_ARM_TEGRA_CPUFREQ currently Tegra cpufreq driver gets built based on ARCH_TEGRA, which doesn't depend on nor select CPU_FREQ itself, so: select CPU_FREQ_TABLE if CPU_FREQ ... isn't guaranteed to fire. The correct solution seems to be: * Add CONFIG_ARM_TEGRA_CPUFREQ to drivers/cpufreq/Kconfig.arm. * Make that Kconfig option selct CPU_FREQ_TABLE. * Make that Kconfig option be def_bool ARCH_TEGRA. * Modify drivers/cpufreq/Makefile to build tegra-cpufreq.c based on that. * Remove all the cpufreq-related stuff from arch/arm/mach-tegra/Kconfig. That way, tegra-cpufreq.c can't be built if !CPU_FREQ, and Tegra's cpufreq works the same way as all the other cpufreq drivers. This patch does it. Suggested-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2013-06-11 23:35:48 -07:00
cpufreq: st: Provide runtime initialised driver for ST's platforms The bootloader is charged with the responsibility to provide platform specific Dynamic Voltage and Frequency Scaling (DVFS) information via Device Tree. This driver takes the supplied configuration and registers it with the new generic OPP framework, to then be used with CPUFreq. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-10 02:42:16 -07:00
config ARM_STI_CPUFREQ
tristate "STi CPUFreq support"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on CPUFREQ_DT
depends on SOC_STIH407 || COMPILE_TEST
cpufreq: st: Provide runtime initialised driver for ST's platforms The bootloader is charged with the responsibility to provide platform specific Dynamic Voltage and Frequency Scaling (DVFS) information via Device Tree. This driver takes the supplied configuration and registers it with the new generic OPP framework, to then be used with CPUFreq. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-10 02:42:16 -07:00
help
This driver uses the generic OPP framework to match the running
platform with a predefined set of suitable values. If not provided
we will fall-back so safe-values contained in Device Tree. Enable
this config option if you wish to add CPUFreq support for STi based
SoCs.
cpufreq: tegra: Rename tegra-cpufreq to tegra20-cpufreq The Tegra124 will use a different driver for frequency scaling, so rename the old driver (which handles only Tegra20) appropriately. Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com> Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-05-13 07:58:47 -07:00
config ARM_TEGRA20_CPUFREQ
cpufreq: tegra20: Use generic cpufreq-dt driver (Tegra30 supported now) Re-parenting to intermediate clock is supported now by the clock driver and thus there is no need in a customized CPUFreq driver, all that code is common for both Tegra20 and Tegra30. The available CPU freqs are now specified in device-tree in a form of OPPs, all users should update their device-trees. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Tested-by: Marcel Ziswiler <marcel@ziswiler.com> Tested-by: Jasper Korten <jja2000@gmail.com> Tested-by: David Heidelberg <david@ixit.cz> Tested-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-03-19 12:02:26 -07:00
tristate "Tegra20/30 CPUFreq support"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_TEGRA || COMPILE_TEST
depends on CPUFREQ_DT
cpufreq: tegra: create CONFIG_ARM_TEGRA_CPUFREQ currently Tegra cpufreq driver gets built based on ARCH_TEGRA, which doesn't depend on nor select CPU_FREQ itself, so: select CPU_FREQ_TABLE if CPU_FREQ ... isn't guaranteed to fire. The correct solution seems to be: * Add CONFIG_ARM_TEGRA_CPUFREQ to drivers/cpufreq/Kconfig.arm. * Make that Kconfig option selct CPU_FREQ_TABLE. * Make that Kconfig option be def_bool ARCH_TEGRA. * Modify drivers/cpufreq/Makefile to build tegra-cpufreq.c based on that. * Remove all the cpufreq-related stuff from arch/arm/mach-tegra/Kconfig. That way, tegra-cpufreq.c can't be built if !CPU_FREQ, and Tegra's cpufreq works the same way as all the other cpufreq drivers. This patch does it. Suggested-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2013-06-11 23:35:48 -07:00
default y
help
cpufreq: tegra20: Use generic cpufreq-dt driver (Tegra30 supported now) Re-parenting to intermediate clock is supported now by the clock driver and thus there is no need in a customized CPUFreq driver, all that code is common for both Tegra20 and Tegra30. The available CPU freqs are now specified in device-tree in a form of OPPs, all users should update their device-trees. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Tested-by: Marcel Ziswiler <marcel@ziswiler.com> Tested-by: Jasper Korten <jja2000@gmail.com> Tested-by: David Heidelberg <david@ixit.cz> Tested-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-03-19 12:02:26 -07:00
This adds the CPUFreq driver support for Tegra20/30 SOCs.
cpufreq: pxa2xx: Add Kconfig entry Add ability for PXA2xx CPUFreq to be compiled as a module or not at all. Signed-off-by: Petr Cvek <petr.cvek@tul.cz> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-11-23 20:59:26 -07:00
cpufreq: Add cpufreq driver for Tegra124 Add a new cpufreq driver for Tegra124. Instead of using the PLLX as the CPU clocksource, switch immediately to the DFLL. It allows the use of higher clock rates, and will automatically scale the CPU voltage as well. Besides the CPU clocksource switch, we let the cpufreq-dt driver for all the cpufreq operations. This driver also relies on the DFLL driver to fill the OPP table for the CPU0 device, so that the cpufreq-dt driver knows what frequencies to use. Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com> Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-05-13 07:58:48 -07:00
config ARM_TEGRA124_CPUFREQ
cpufreq: tegra124: do not handle the CPU rail The Tegra124 cpufreq driver has no information to handle the Vdd-CPU rail. So this driver shouldn't handle for the CPU clock switching from DFLL to other PLL clocks. It was designed to work on DFLL clock only, which handle the frequency/voltage scaling in the background. This patch removes the driver dependency of the CPU rail, as well as not allow it to be built as a module and remove the removal function. So it can keep working on DFLL clock. Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: linux-pm@vger.kernel.org Signed-off-by: Joseph Lo <josephl@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-01-03 20:06:53 -07:00
bool "Tegra124 CPUFreq support"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_TEGRA || COMPILE_TEST
depends on CPUFREQ_DT
cpufreq: Add cpufreq driver for Tegra124 Add a new cpufreq driver for Tegra124. Instead of using the PLLX as the CPU clocksource, switch immediately to the DFLL. It allows the use of higher clock rates, and will automatically scale the CPU voltage as well. Besides the CPU clocksource switch, we let the cpufreq-dt driver for all the cpufreq operations. This driver also relies on the DFLL driver to fill the OPP table for the CPU0 device, so that the cpufreq-dt driver knows what frequencies to use. Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com> Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-05-13 07:58:48 -07:00
default y
help
This adds the CPUFreq driver support for Tegra124 SOCs.
cpufreq: Add Tegra186 cpufreq driver Add a new cpufreq driver for Tegra186 (and likely later). The CPUs are organized into two clusters, Denver and A57, with two and four cores respectively. CPU frequency can be adjusted by writing the desired rate divisor and a voltage hint to a special per-core register. The frequency of each core can be set individually; however, this is just a hint as all CPUs in a cluster will run at the maximum rate of non-idle CPUs in the cluster. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-11 01:09:15 -07:00
config ARM_TEGRA186_CPUFREQ
tristate "Tegra186 CPUFreq support"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_TEGRA || COMPILE_TEST
depends on TEGRA_BPMP
cpufreq: Add Tegra186 cpufreq driver Add a new cpufreq driver for Tegra186 (and likely later). The CPUs are organized into two clusters, Denver and A57, with two and four cores respectively. CPU frequency can be adjusted by writing the desired rate divisor and a voltage hint to a special per-core register. The frequency of each core can be set individually; however, this is just a hint as all CPUs in a cluster will run at the maximum rate of non-idle CPUs in the cluster. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-11 01:09:15 -07:00
help
This adds the CPUFreq driver support for Tegra186 SOCs.
cpufreq: Add Tegra194 cpufreq driver Add support for CPU frequency scaling on Tegra194. The frequency of each core can be adjusted by writing a clock divisor value to a MSR on the core. The range of valid divisors is queried from the BPMP. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Sumit Gupta <sumitg@nvidia.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-07-16 01:30:01 -07:00
config ARM_TEGRA194_CPUFREQ
tristate "Tegra194 CPUFreq support"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_TEGRA_194_SOC || (64BIT && COMPILE_TEST)
depends on TEGRA_BPMP
cpufreq: Add Tegra194 cpufreq driver Add support for CPU frequency scaling on Tegra194. The frequency of each core can be adjusted by writing a clock divisor value to a MSR on the core. The range of valid divisors is queried from the BPMP. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Sumit Gupta <sumitg@nvidia.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-07-16 01:30:01 -07:00
default y
help
This adds CPU frequency driver support for Tegra194 SOCs.
cpufreq: ti: Add cpufreq driver to determine available OPPs at runtime Some TI SoCs, like those in the AM335x, AM437x, DRA7x, and AM57x families, have different OPPs available for the MPU depending on which specific variant of the SoC is in use. This can be determined through use of the revision and an eFuse register present in the silicon. Introduce a ti-cpufreq driver that can read the aformentioned values and provide them as version matching data to the opp framework. Through this the opp-supported-hw dt binding that is part of the operating-points-v2 table can be used to indicate availability of OPPs for each device. This driver also creates the "cpufreq-dt" platform_device after passing the version matching data to the OPP framework so that the cpufreq-dt handles the actual cpufreq implementation. Even without the necessary data to pass the version matching data the driver will still create this device to maintain backwards compatibility with operating-points v1 tables. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-03 10:29:28 -07:00
config ARM_TI_CPUFREQ
bool "Texas Instruments CPUFreq support"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on ARCH_OMAP2PLUS || ARCH_K3 || COMPILE_TEST
cpufreq: ti: Enable ti-cpufreq for ARCH_K3 Make ti-cpufreq driver depend on ARCH_K3 and set it to `default y` so it is always enabled for platforms that it depends on. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Vibhore Vardhan <vibhore@ti.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2022-11-01 11:09:34 -07:00
default y
cpufreq: ti: Add cpufreq driver to determine available OPPs at runtime Some TI SoCs, like those in the AM335x, AM437x, DRA7x, and AM57x families, have different OPPs available for the MPU depending on which specific variant of the SoC is in use. This can be determined through use of the revision and an eFuse register present in the silicon. Introduce a ti-cpufreq driver that can read the aformentioned values and provide them as version matching data to the opp framework. Through this the opp-supported-hw dt binding that is part of the operating-points-v2 table can be used to indicate availability of OPPs for each device. This driver also creates the "cpufreq-dt" platform_device after passing the version matching data to the OPP framework so that the cpufreq-dt handles the actual cpufreq implementation. Even without the necessary data to pass the version matching data the driver will still create this device to maintain backwards compatibility with operating-points v1 tables. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-03 10:29:28 -07:00
help
This driver enables valid OPPs on the running platform based on
values contained within the SoC in use. Enable this in order to
use the cpufreq-dt driver on all Texas Instruments platforms that
provide dt based operating-points-v2 tables with opp-supported-hw
data provided. Required for cpufreq support on AM335x, AM437x,
DRA7x, and AM57x platforms.
cpufreq: pxa2xx: Add Kconfig entry Add ability for PXA2xx CPUFreq to be compiled as a module or not at all. Signed-off-by: Petr Cvek <petr.cvek@tul.cz> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-11-23 20:59:26 -07:00
config ARM_PXA2xx_CPUFREQ
tristate "Intel PXA2xx CPUfreq driver"
cpufreq: Enable COMPILE_TEST on Arm drivers COMPILE_TEST is useful for build testing without requiring a specific architecture's compiler. Enable it for most of the Arm CPUFreq drivers. As Kconfig.arm is only included on ARM and ARM64, COMPILE_TEST is only enabled for those architectures until that is dropped. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2024-08-06 06:58:26 -07:00
depends on PXA27x || PXA25x || COMPILE_TEST
cpufreq: pxa2xx: Add Kconfig entry Add ability for PXA2xx CPUFreq to be compiled as a module or not at all. Signed-off-by: Petr Cvek <petr.cvek@tul.cz> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-11-23 20:59:26 -07:00
help
This add the CPUFreq driver support for Intel PXA2xx SOCs.
If in doubt, say N.
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