drivers/cpufreq/Kconfig.arm

   1 #
   2 # ARM CPU Frequency scaling drivers
   3 #
   4
   5 # big LITTLE core layer and glue drivers
   6 config ARM_BIG_LITTLE_CPUFREQ
   7         tristate "Generic ARM big LITTLE CPUfreq driver"
   8         depends on (ARM_CPU_TOPOLOGY || ARM64) && HAVE_CLK
   9         # if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y
  10         depends on !CPU_THERMAL || THERMAL
  11         select PM_OPP
  12         help
  13           This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
  14
  15 config ARM_DT_BL_CPUFREQ
  16         tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
  17         depends on ARM_BIG_LITTLE_CPUFREQ && OF
  18         help
  19           This enables probing via DT for Generic CPUfreq driver for ARM
  20           big.LITTLE platform. This gets frequency tables from DT.
  21
  22 config ARM_VEXPRESS_SPC_CPUFREQ
  23         tristate "Versatile Express SPC based CPUfreq driver"
  24         depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
  25         help
  26           This add the CPUfreq driver support for Versatile Express
  27           big.LITTLE platforms using SPC for power management.
  28
  29 config ARM_EXYNOS5440_CPUFREQ
  30         tristate "SAMSUNG EXYNOS5440"
  31         depends on SOC_EXYNOS5440
  32         depends on HAVE_CLK && OF
  33         select PM_OPP
  34         default y
  35         help
  36           This adds the CPUFreq driver for Samsung EXYNOS5440
  37           SoC. The nature of exynos5440 clock controller is
  38           different than previous exynos controllers so not using
  39           the common exynos framework.
  40
  41           If in doubt, say N.
  42
  43 config ARM_HIGHBANK_CPUFREQ
  44         tristate "Calxeda Highbank-based"
  45         depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
  46         default m
  47         help
  48           This adds the CPUFreq driver for Calxeda Highbank SoC
  49           based boards.
  50
  51           If in doubt, say N.
  52
  53 config ARM_IMX6Q_CPUFREQ
  54         tristate "Freescale i.MX6 cpufreq support"
  55         depends on ARCH_MXC
  56         depends on REGULATOR_ANATOP
  57         select PM_OPP
  58         help
  59           This adds cpufreq driver support for Freescale i.MX6 series SoCs.
  60
  61           If in doubt, say N.
  62
  63 config ARM_INTEGRATOR
  64         tristate "CPUfreq driver for ARM Integrator CPUs"
  65         depends on ARCH_INTEGRATOR
  66         default y
  67         help
  68           This enables the CPUfreq driver for ARM Integrator CPUs.
  69           If in doubt, say Y.
  70
  71 config ARM_KIRKWOOD_CPUFREQ
  72         def_bool MACH_KIRKWOOD
  73         help
  74           This adds the CPUFreq driver for Marvell Kirkwood
  75           SoCs.
  76
  77 config ARM_MT8173_CPUFREQ
  78         tristate "Mediatek MT8173 CPUFreq support"
  79         depends on ARCH_MEDIATEK && REGULATOR
  80         depends on ARM64 || (ARM_CPU_TOPOLOGY && COMPILE_TEST)
  81         depends on !CPU_THERMAL || THERMAL
  82         select PM_OPP
  83         help
  84           This adds the CPUFreq driver support for Mediatek MT8173 SoC.
  85
  86 config ARM_OMAP2PLUS_CPUFREQ
  87         bool "TI OMAP2+"
  88         depends on ARCH_OMAP2PLUS
  89         default ARCH_OMAP2PLUS
  90
  91 config ARM_S3C_CPUFREQ
  92         bool
  93         help
  94           Internal configuration node for common cpufreq on Samsung SoC
  95
  96 config ARM_S3C24XX_CPUFREQ
  97         bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
  98         depends on ARCH_S3C24XX
  99         select ARM_S3C_CPUFREQ
 100         help
 101           This enables the CPUfreq driver for the Samsung S3C24XX family
 102           of CPUs.
 103
 104           For details, take a look at <file:Documentation/cpu-freq>.
 105
 106           If in doubt, say N.
 107
 108 config ARM_S3C24XX_CPUFREQ_DEBUG
 109         bool "Debug CPUfreq Samsung driver core"
 110         depends on ARM_S3C24XX_CPUFREQ
 111         help
 112           Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
 113
 114 config ARM_S3C24XX_CPUFREQ_IODEBUG
 115         bool "Debug CPUfreq Samsung driver IO timing"
 116         depends on ARM_S3C24XX_CPUFREQ
 117         help
 118           Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
 119
 120 config ARM_S3C24XX_CPUFREQ_DEBUGFS
 121         bool "Export debugfs for CPUFreq"
 122         depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
 123         help
 124           Export status information via debugfs.
 125
 126 config ARM_S3C2410_CPUFREQ
 127         bool
 128         depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
 129         select S3C2410_CPUFREQ_UTILS
 130         help
 131           CPU Frequency scaling support for S3C2410
 132
 133 config ARM_S3C2412_CPUFREQ
 134         bool
 135         depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
 136         default y
 137         select S3C2412_IOTIMING
 138         help
 139           CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
 140
 141 config ARM_S3C2416_CPUFREQ
 142         bool "S3C2416 CPU Frequency scaling support"
 143         depends on CPU_S3C2416
 144         help
 145           This adds the CPUFreq driver for the Samsung S3C2416 and
 146           S3C2450 SoC. The S3C2416 supports changing the rate of the
 147           armdiv clock source and also entering a so called dynamic
 148           voltage scaling mode in which it is possible to reduce the
 149           core voltage of the CPU.
 150
 151           If in doubt, say N.
 152
 153 config ARM_S3C2416_CPUFREQ_VCORESCALE
 154         bool "Allow voltage scaling for S3C2416 arm core"
 155         depends on ARM_S3C2416_CPUFREQ && REGULATOR
 156         help
 157           Enable CPU voltage scaling when entering the dvs mode.
 158           It uses information gathered through existing hardware and
 159           tests but not documented in any datasheet.
 160
 161           If in doubt, say N.
 162
 163 config ARM_S3C2440_CPUFREQ
 164         bool "S3C2440/S3C2442 CPU Frequency scaling support"
 165         depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
 166         select S3C2410_CPUFREQ_UTILS
 167         default y
 168         help
 169           CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
 170
 171 config ARM_S3C64XX_CPUFREQ
 172         bool "Samsung S3C64XX"
 173         depends on CPU_S3C6410
 174         default y
 175         help
 176           This adds the CPUFreq driver for Samsung S3C6410 SoC.
 177
 178           If in doubt, say N.
 179
 180 config ARM_S5PV210_CPUFREQ
 181         bool "Samsung S5PV210 and S5PC110"
 182         depends on CPU_S5PV210
 183         default y
 184         help
 185           This adds the CPUFreq driver for Samsung S5PV210 and
 186           S5PC110 SoCs.
 187
 188           If in doubt, say N.
 189
 190 config ARM_SA1100_CPUFREQ
 191         bool
 192
 193 config ARM_SA1110_CPUFREQ
 194         bool
 195
 196 config ARM_SCPI_CPUFREQ
 197         tristate "SCPI based CPUfreq driver"
 198         depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
 199         help
 200           This adds the CPUfreq driver support for ARM big.LITTLE platforms
 201           using SCPI protocol for CPU power management.
 202
 203           This driver uses SCPI Message Protocol driver to interact with the
 204           firmware providing the CPU DVFS functionality.
 205
 206 config ARM_SPEAR_CPUFREQ
 207         bool "SPEAr CPUFreq support"
 208         depends on PLAT_SPEAR
 209         default y
 210         help
 211           This adds the CPUFreq driver support for SPEAr SOCs.
 212
 213 config ARM_STI_CPUFREQ
 214         tristate "STi CPUFreq support"
 215         depends on SOC_STIH407
 216         help
 217           This driver uses the generic OPP framework to match the running
 218           platform with a predefined set of suitable values.  If not provided
 219           we will fall-back so safe-values contained in Device Tree.  Enable
 220           this config option if you wish to add CPUFreq support for STi based
 221           SoCs.
 222
 223 config ARM_TEGRA20_CPUFREQ
 224         bool "Tegra20 CPUFreq support"
 225         depends on ARCH_TEGRA
 226         default y
 227         help
 228           This adds the CPUFreq driver support for Tegra20 SOCs.
 229
 230 config ARM_TEGRA124_CPUFREQ
 231         tristate "Tegra124 CPUFreq support"
 232         depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
 233         default y
 234         help
 235           This adds the CPUFreq driver support for Tegra124 SOCs.
 236
 237 config ARM_PXA2xx_CPUFREQ
 238         tristate "Intel PXA2xx CPUfreq driver"
 239         depends on PXA27x || PXA25x
 240         help
 241           This add the CPUFreq driver support for Intel PXA2xx SOCs.
 242
 243           If in doubt, say N.
 244
 245 config ACPI_CPPC_CPUFREQ
 246         tristate "CPUFreq driver based on the ACPI CPPC spec"
 247         depends on ACPI
 248         select ACPI_CPPC_LIB
 249         default n
 250         help
 251           This adds a CPUFreq driver which uses CPPC methods
 252           as described in the ACPIv5.1 spec. CPPC stands for
 253           Collaborative Processor Performance Controls. It
 254           is based on an abstract continuous scale of CPU
 255           performance values which allows the remote power
 256           processor to flexibly optimize for power and
 257           performance. CPPC relies on power management firmware
 258           support for its operation.
 259
 260           If in doubt, say N.