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- #
- # ARM CPU Frequency scaling drivers
- #
- # big LITTLE core layer and glue drivers
- config ARM_BIG_LITTLE_CPUFREQ
- tristate "Generic ARM big LITTLE CPUfreq driver"
- depends on (ARM_CPU_TOPOLOGY || ARM64) && HAVE_CLK
- # if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y
- depends on !CPU_THERMAL || THERMAL
- select PM_OPP
- help
- This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
- config ARM_BRCMSTB_AVS_CPUFREQ
- tristate "Broadcom STB AVS CPUfreq driver"
- depends on ARCH_BRCMSTB || COMPILE_TEST
- default y
- help
- Some Broadcom STB SoCs use a co-processor running proprietary firmware
- ("AVS") to handle voltage and frequency scaling. This driver provides
- a standard CPUfreq interface to to the firmware.
- Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
- config ARM_BRCMSTB_AVS_CPUFREQ_DEBUG
- bool "Broadcom STB AVS CPUfreq driver sysfs debug capability"
- depends on ARM_BRCMSTB_AVS_CPUFREQ
- help
- Enabling this option turns on debug support via sysfs under
- /sys/kernel/debug/brcmstb-avs-cpufreq. It is possible to read all and
- write some AVS mailbox registers through sysfs entries.
- If in doubt, say N.
- config ARM_DT_BL_CPUFREQ
- tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
- depends on ARM_BIG_LITTLE_CPUFREQ && OF
- help
- This enables probing via DT for Generic CPUfreq driver for ARM
- big.LITTLE platform. This gets frequency tables from DT.
- config ARM_VEXPRESS_SPC_CPUFREQ
- tristate "Versatile Express SPC based CPUfreq driver"
- depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
- help
- This add the CPUfreq driver support for Versatile Express
- big.LITTLE platforms using SPC for power management.
- config ARM_EXYNOS5440_CPUFREQ
- tristate "SAMSUNG EXYNOS5440"
- depends on SOC_EXYNOS5440
- depends on HAVE_CLK && OF
- select PM_OPP
- default y
- help
- This adds the CPUFreq driver for Samsung EXYNOS5440
- SoC. The nature of exynos5440 clock controller is
- different than previous exynos controllers so not using
- the common exynos framework.
- If in doubt, say N.
- config ARM_HIGHBANK_CPUFREQ
- tristate "Calxeda Highbank-based"
- depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
- default m
- help
- This adds the CPUFreq driver for Calxeda Highbank SoC
- based boards.
- If in doubt, say N.
- config ARM_IMX6Q_CPUFREQ
- tristate "Freescale i.MX6 cpufreq support"
- depends on ARCH_MXC
- depends on REGULATOR_ANATOP
- select PM_OPP
- help
- This adds cpufreq driver support for Freescale i.MX6 series SoCs.
- If in doubt, say N.
- config ARM_KIRKWOOD_CPUFREQ
- def_bool MACH_KIRKWOOD
- help
- This adds the CPUFreq driver for Marvell Kirkwood
- SoCs.
- config ARM_MEDIATEK_CPUFREQ
- tristate "CPU Frequency scaling support for MediaTek SoCs"
- depends on ARCH_MEDIATEK && REGULATOR
- depends on !CPU_THERMAL || THERMAL
- select PM_OPP
- help
- This adds the CPUFreq driver support for MediaTek SoCs.
- config ARM_OMAP2PLUS_CPUFREQ
- bool "TI OMAP2+"
- depends on ARCH_OMAP2PLUS
- default ARCH_OMAP2PLUS
- config ARM_S3C_CPUFREQ
- bool
- help
- Internal configuration node for common cpufreq on Samsung SoC
- config ARM_S3C24XX_CPUFREQ
- bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
- depends on ARCH_S3C24XX
- select ARM_S3C_CPUFREQ
- help
- This enables the CPUfreq driver for the Samsung S3C24XX family
- of CPUs.
- For details, take a look at <file:Documentation/cpu-freq>.
- If in doubt, say N.
- config ARM_S3C24XX_CPUFREQ_DEBUG
- bool "Debug CPUfreq Samsung driver core"
- depends on ARM_S3C24XX_CPUFREQ
- help
- Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
- config ARM_S3C24XX_CPUFREQ_IODEBUG
- bool "Debug CPUfreq Samsung driver IO timing"
- depends on ARM_S3C24XX_CPUFREQ
- help
- Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
- config ARM_S3C24XX_CPUFREQ_DEBUGFS
- bool "Export debugfs for CPUFreq"
- depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
- help
- Export status information via debugfs.
- config ARM_S3C2410_CPUFREQ
- bool
- depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
- select S3C2410_CPUFREQ_UTILS
- help
- CPU Frequency scaling support for S3C2410
- config ARM_S3C2412_CPUFREQ
- bool
- depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
- default y
- select S3C2412_IOTIMING
- help
- CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
- config ARM_S3C2416_CPUFREQ
- bool "S3C2416 CPU Frequency scaling support"
- depends on CPU_S3C2416
- help
- This adds the CPUFreq driver for the Samsung S3C2416 and
- S3C2450 SoC. The S3C2416 supports changing the rate of the
- armdiv clock source and also entering a so called dynamic
- voltage scaling mode in which it is possible to reduce the
- core voltage of the CPU.
- If in doubt, say N.
- config ARM_S3C2416_CPUFREQ_VCORESCALE
- bool "Allow voltage scaling for S3C2416 arm core"
- depends on ARM_S3C2416_CPUFREQ && REGULATOR
- help
- Enable CPU voltage scaling when entering the dvs mode.
- It uses information gathered through existing hardware and
- tests but not documented in any datasheet.
- If in doubt, say N.
- config ARM_S3C2440_CPUFREQ
- bool "S3C2440/S3C2442 CPU Frequency scaling support"
- depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
- select S3C2410_CPUFREQ_UTILS
- default y
- help
- CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
- config ARM_S3C64XX_CPUFREQ
- bool "Samsung S3C64XX"
- depends on CPU_S3C6410
- default y
- help
- This adds the CPUFreq driver for Samsung S3C6410 SoC.
- If in doubt, say N.
- config ARM_S5PV210_CPUFREQ
- bool "Samsung S5PV210 and S5PC110"
- depends on CPU_S5PV210
- default y
- help
- This adds the CPUFreq driver for Samsung S5PV210 and
- S5PC110 SoCs.
- If in doubt, say N.
- config ARM_SA1100_CPUFREQ
- bool
- config ARM_SA1110_CPUFREQ
- bool
- config ARM_SCPI_CPUFREQ
- tristate "SCPI based CPUfreq driver"
- depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
- help
- This adds the CPUfreq driver support for ARM big.LITTLE platforms
- using SCPI protocol for CPU power management.
- This driver uses SCPI Message Protocol driver to interact with the
- firmware providing the CPU DVFS functionality.
- config ARM_SPEAR_CPUFREQ
- bool "SPEAr CPUFreq support"
- depends on PLAT_SPEAR
- default y
- help
- This adds the CPUFreq driver support for SPEAr SOCs.
- config ARM_STI_CPUFREQ
- tristate "STi CPUFreq support"
- depends on SOC_STIH407
- 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.
- config ARM_TANGO_CPUFREQ
- bool
- depends on CPUFREQ_DT && ARCH_TANGO
- default y
- config ARM_TEGRA20_CPUFREQ
- bool "Tegra20 CPUFreq support"
- depends on ARCH_TEGRA
- default y
- help
- This adds the CPUFreq driver support for Tegra20 SOCs.
- config ARM_TEGRA124_CPUFREQ
- tristate "Tegra124 CPUFreq support"
- depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
- default y
- help
- This adds the CPUFreq driver support for Tegra124 SOCs.
- config ARM_TEGRA186_CPUFREQ
- tristate "Tegra186 CPUFreq support"
- depends on ARCH_TEGRA && TEGRA_BPMP
- help
- This adds the CPUFreq driver support for Tegra186 SOCs.
- config ARM_TI_CPUFREQ
- bool "Texas Instruments CPUFreq support"
- depends on ARCH_OMAP2PLUS
- 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.
- config ARM_PXA2xx_CPUFREQ
- tristate "Intel PXA2xx CPUfreq driver"
- depends on PXA27x || PXA25x
- help
- This add the CPUFreq driver support for Intel PXA2xx SOCs.
- If in doubt, say N.
- config ACPI_CPPC_CPUFREQ
- tristate "CPUFreq driver based on the ACPI CPPC spec"
- depends on ACPI_PROCESSOR
- select ACPI_CPPC_LIB
- default n
- help
- This adds a CPUFreq driver which uses CPPC methods
- as described in the ACPIv5.1 spec. CPPC stands for
- Collaborative Processor Performance Controls. It
- is based on an abstract continuous scale of CPU
- performance values which allows the remote power
- processor to flexibly optimize for power and
- performance. CPPC relies on power management firmware
- support for its operation.
- If in doubt, say N.
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