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