1# 2# ARM CPU Frequency scaling drivers 3# 4 5# big LITTLE core layer and glue drivers 6config 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 15config 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 22config 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 29config 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 43config 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 53config ARM_HISI_ACPU_CPUFREQ 54 tristate "Hisilicon ACPU CPUfreq driver" 55 depends on ARCH_HISI && CPUFREQ_DT 56 select PM_OPP 57 help 58 This enables the hisilicon ACPU CPUfreq driver. 59 60 If in doubt, say N. 61 62config ARM_IMX6Q_CPUFREQ 63 tristate "Freescale i.MX6 cpufreq support" 64 depends on ARCH_MXC 65 depends on REGULATOR_ANATOP 66 select PM_OPP 67 help 68 This adds cpufreq driver support for Freescale i.MX6 series SoCs. 69 70 If in doubt, say N. 71 72config ARM_INTEGRATOR 73 tristate "CPUfreq driver for ARM Integrator CPUs" 74 depends on ARCH_INTEGRATOR 75 default y 76 help 77 This enables the CPUfreq driver for ARM Integrator CPUs. 78 If in doubt, say Y. 79 80config ARM_KIRKWOOD_CPUFREQ 81 def_bool MACH_KIRKWOOD 82 help 83 This adds the CPUFreq driver for Marvell Kirkwood 84 SoCs. 85 86config ARM_MT8173_CPUFREQ 87 bool "Mediatek MT8173 CPUFreq support" 88 depends on ARCH_MEDIATEK && REGULATOR 89 depends on ARM64 || (ARM_CPU_TOPOLOGY && COMPILE_TEST) 90 depends on !CPU_THERMAL || THERMAL=y 91 select PM_OPP 92 help 93 This adds the CPUFreq driver support for Mediatek MT8173 SoC. 94 95config ARM_OMAP2PLUS_CPUFREQ 96 bool "TI OMAP2+" 97 depends on ARCH_OMAP2PLUS 98 default ARCH_OMAP2PLUS 99 100config ARM_S3C_CPUFREQ 101 bool 102 help 103 Internal configuration node for common cpufreq on Samsung SoC 104 105config ARM_S3C24XX_CPUFREQ 106 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)" 107 depends on ARCH_S3C24XX 108 select ARM_S3C_CPUFREQ 109 help 110 This enables the CPUfreq driver for the Samsung S3C24XX family 111 of CPUs. 112 113 For details, take a look at <file:Documentation/cpu-freq>. 114 115 If in doubt, say N. 116 117config ARM_S3C24XX_CPUFREQ_DEBUG 118 bool "Debug CPUfreq Samsung driver core" 119 depends on ARM_S3C24XX_CPUFREQ 120 help 121 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core 122 123config ARM_S3C24XX_CPUFREQ_IODEBUG 124 bool "Debug CPUfreq Samsung driver IO timing" 125 depends on ARM_S3C24XX_CPUFREQ 126 help 127 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core 128 129config ARM_S3C24XX_CPUFREQ_DEBUGFS 130 bool "Export debugfs for CPUFreq" 131 depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS 132 help 133 Export status information via debugfs. 134 135config ARM_S3C2410_CPUFREQ 136 bool 137 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410 138 select S3C2410_CPUFREQ_UTILS 139 help 140 CPU Frequency scaling support for S3C2410 141 142config ARM_S3C2412_CPUFREQ 143 bool 144 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412 145 default y 146 select S3C2412_IOTIMING 147 help 148 CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs. 149 150config ARM_S3C2416_CPUFREQ 151 bool "S3C2416 CPU Frequency scaling support" 152 depends on CPU_S3C2416 153 help 154 This adds the CPUFreq driver for the Samsung S3C2416 and 155 S3C2450 SoC. The S3C2416 supports changing the rate of the 156 armdiv clock source and also entering a so called dynamic 157 voltage scaling mode in which it is possible to reduce the 158 core voltage of the CPU. 159 160 If in doubt, say N. 161 162config ARM_S3C2416_CPUFREQ_VCORESCALE 163 bool "Allow voltage scaling for S3C2416 arm core" 164 depends on ARM_S3C2416_CPUFREQ && REGULATOR 165 help 166 Enable CPU voltage scaling when entering the dvs mode. 167 It uses information gathered through existing hardware and 168 tests but not documented in any datasheet. 169 170 If in doubt, say N. 171 172config ARM_S3C2440_CPUFREQ 173 bool "S3C2440/S3C2442 CPU Frequency scaling support" 174 depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442) 175 select S3C2410_CPUFREQ_UTILS 176 default y 177 help 178 CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs. 179 180config ARM_S3C64XX_CPUFREQ 181 bool "Samsung S3C64XX" 182 depends on CPU_S3C6410 183 default y 184 help 185 This adds the CPUFreq driver for Samsung S3C6410 SoC. 186 187 If in doubt, say N. 188 189config ARM_S5PV210_CPUFREQ 190 bool "Samsung S5PV210 and S5PC110" 191 depends on CPU_S5PV210 192 default y 193 help 194 This adds the CPUFreq driver for Samsung S5PV210 and 195 S5PC110 SoCs. 196 197 If in doubt, say N. 198 199config ARM_SA1100_CPUFREQ 200 bool 201 202config ARM_SA1110_CPUFREQ 203 bool 204 205config ARM_SCPI_CPUFREQ 206 tristate "SCPI based CPUfreq driver" 207 depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI 208 help 209 This adds the CPUfreq driver support for ARM big.LITTLE platforms 210 using SCPI protocol for CPU power management. 211 212 This driver uses SCPI Message Protocol driver to interact with the 213 firmware providing the CPU DVFS functionality. 214 215config ARM_SPEAR_CPUFREQ 216 bool "SPEAr CPUFreq support" 217 depends on PLAT_SPEAR 218 default y 219 help 220 This adds the CPUFreq driver support for SPEAr SOCs. 221 222config ARM_STI_CPUFREQ 223 tristate "STi CPUFreq support" 224 depends on SOC_STIH407 225 help 226 This driver uses the generic OPP framework to match the running 227 platform with a predefined set of suitable values. If not provided 228 we will fall-back so safe-values contained in Device Tree. Enable 229 this config option if you wish to add CPUFreq support for STi based 230 SoCs. 231 232config ARM_TEGRA20_CPUFREQ 233 bool "Tegra20 CPUFreq support" 234 depends on ARCH_TEGRA 235 default y 236 help 237 This adds the CPUFreq driver support for Tegra20 SOCs. 238 239config ARM_TEGRA124_CPUFREQ 240 tristate "Tegra124 CPUFreq support" 241 depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR 242 default y 243 help 244 This adds the CPUFreq driver support for Tegra124 SOCs. 245 246config ARM_PXA2xx_CPUFREQ 247 tristate "Intel PXA2xx CPUfreq driver" 248 depends on PXA27x || PXA25x 249 help 250 This add the CPUFreq driver support for Intel PXA2xx SOCs. 251 252 If in doubt, say N. 253 254config ACPI_CPPC_CPUFREQ 255 tristate "CPUFreq driver based on the ACPI CPPC spec" 256 depends on ACPI 257 select ACPI_CPPC_LIB 258 default n 259 help 260 This adds a CPUFreq driver which uses CPPC methods 261 as described in the ACPIv5.1 spec. CPPC stands for 262 Collaborative Processor Performance Controls. It 263 is based on an abstract continuous scale of CPU 264 performance values which allows the remote power 265 processor to flexibly optimize for power and 266 performance. CPPC relies on power management firmware 267 support for its operation. 268 269 If in doubt, say N. 270