| # |
| # 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_MT8173_CPUFREQ |
| tristate "Mediatek MT8173 CPUFreq support" |
| depends on ARCH_MEDIATEK && REGULATOR |
| depends on ARM64 || (ARM_CPU_TOPOLOGY && COMPILE_TEST) |
| depends on !CPU_THERMAL || THERMAL |
| select PM_OPP |
| help |
| This adds the CPUFreq driver support for Mediatek MT8173 SoC. |
| |
| 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_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. |