2 # ARM CPU Frequency scaling drivers
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
11 This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
13 config ARM_DT_BL_CPUFREQ
14 tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
15 depends on ARM_BIG_LITTLE_CPUFREQ && OF
17 This enables probing via DT for Generic CPUfreq driver for ARM
18 big.LITTLE platform. This gets frequency tables from DT.
20 config ARM_VEXPRESS_SPC_CPUFREQ
21 tristate "Versatile Express SPC based CPUfreq driver"
22 depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
24 This add the CPUfreq driver support for Versatile Express
25 big.LITTLE platforms using SPC for power management.
28 config ARM_EXYNOS_CPUFREQ
29 tristate "SAMSUNG EXYNOS CPUfreq Driver"
30 depends on CPU_EXYNOS4210 || SOC_EXYNOS4212 || SOC_EXYNOS4412 || SOC_EXYNOS5250
33 This adds the CPUFreq driver for Samsung EXYNOS platforms.
34 Supported SoC versions are:
35 Exynos4210, Exynos4212, Exynos4412, and Exynos5250.
39 config ARM_EXYNOS4X12_CPUFREQ
40 bool "SAMSUNG EXYNOS4x12"
41 depends on SOC_EXYNOS4212 || SOC_EXYNOS4412
42 depends on ARM_EXYNOS_CPUFREQ
45 This adds the CPUFreq driver for Samsung EXYNOS4X12
46 SoC (EXYNOS4212 or EXYNOS4412).
50 config ARM_EXYNOS5250_CPUFREQ
51 bool "SAMSUNG EXYNOS5250"
52 depends on SOC_EXYNOS5250
53 depends on ARM_EXYNOS_CPUFREQ
56 This adds the CPUFreq driver for Samsung EXYNOS5250
61 config ARM_EXYNOS_CPU_FREQ_BOOST_SW
62 bool "EXYNOS Frequency Overclocking - Software"
63 depends on ARM_EXYNOS_CPUFREQ && THERMAL
64 select CPU_FREQ_BOOST_SW
67 This driver supports software managed overclocking (BOOST).
68 It allows usage of special frequencies for Samsung Exynos
69 processors if thermal conditions are appropriate.
71 It requires, for safe operation, thermal framework with properly
76 config ARM_EXYNOS5440_CPUFREQ
77 tristate "SAMSUNG EXYNOS5440"
78 depends on SOC_EXYNOS5440
79 depends on HAVE_CLK && OF
83 This adds the CPUFreq driver for Samsung EXYNOS5440
84 SoC. The nature of exynos5440 clock controller is
85 different than previous exynos controllers so not using
86 the common exynos framework.
90 config ARM_HIGHBANK_CPUFREQ
91 tristate "Calxeda Highbank-based"
92 depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
95 This adds the CPUFreq driver for Calxeda Highbank SoC
100 config ARM_HISI_ACPU_CPUFREQ
101 tristate "Hisilicon ACPU CPUfreq driver"
102 depends on ARCH_HISI && CPUFREQ_DT
105 This enables the hisilicon ACPU CPUfreq driver.
109 config ARM_IMX6Q_CPUFREQ
110 tristate "Freescale i.MX6 cpufreq support"
112 depends on REGULATOR_ANATOP
115 This adds cpufreq driver support for Freescale i.MX6 series SoCs.
119 config ARM_INTEGRATOR
120 tristate "CPUfreq driver for ARM Integrator CPUs"
121 depends on ARCH_INTEGRATOR
124 This enables the CPUfreq driver for ARM Integrator CPUs.
127 config ARM_KIRKWOOD_CPUFREQ
128 def_bool MACH_KIRKWOOD
130 This adds the CPUFreq driver for Marvell Kirkwood
133 config ARM_MT8173_CPUFREQ
134 bool "Mediatek MT8173 CPUFreq support"
135 depends on ARCH_MEDIATEK && REGULATOR
136 depends on !CPU_THERMAL || THERMAL=y
139 This adds the CPUFreq driver support for Mediatek MT8173 SoC.
141 config ARM_OMAP2PLUS_CPUFREQ
143 depends on ARCH_OMAP2PLUS
144 default ARCH_OMAP2PLUS
146 config ARM_S3C_CPUFREQ
149 Internal configuration node for common cpufreq on Samsung SoC
151 config ARM_S3C24XX_CPUFREQ
152 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
153 depends on ARCH_S3C24XX
154 select ARM_S3C_CPUFREQ
156 This enables the CPUfreq driver for the Samsung S3C24XX family
159 For details, take a look at <file:Documentation/cpu-freq>.
163 config ARM_S3C24XX_CPUFREQ_DEBUG
164 bool "Debug CPUfreq Samsung driver core"
165 depends on ARM_S3C24XX_CPUFREQ
167 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
169 config ARM_S3C24XX_CPUFREQ_IODEBUG
170 bool "Debug CPUfreq Samsung driver IO timing"
171 depends on ARM_S3C24XX_CPUFREQ
173 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
175 config ARM_S3C24XX_CPUFREQ_DEBUGFS
176 bool "Export debugfs for CPUFreq"
177 depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
179 Export status information via debugfs.
181 config ARM_S3C2410_CPUFREQ
183 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
184 select S3C2410_CPUFREQ_UTILS
186 CPU Frequency scaling support for S3C2410
188 config ARM_S3C2412_CPUFREQ
190 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
192 select S3C2412_IOTIMING
194 CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
196 config ARM_S3C2416_CPUFREQ
197 bool "S3C2416 CPU Frequency scaling support"
198 depends on CPU_S3C2416
200 This adds the CPUFreq driver for the Samsung S3C2416 and
201 S3C2450 SoC. The S3C2416 supports changing the rate of the
202 armdiv clock source and also entering a so called dynamic
203 voltage scaling mode in which it is possible to reduce the
204 core voltage of the CPU.
208 config ARM_S3C2416_CPUFREQ_VCORESCALE
209 bool "Allow voltage scaling for S3C2416 arm core"
210 depends on ARM_S3C2416_CPUFREQ && REGULATOR
212 Enable CPU voltage scaling when entering the dvs mode.
213 It uses information gathered through existing hardware and
214 tests but not documented in any datasheet.
218 config ARM_S3C2440_CPUFREQ
219 bool "S3C2440/S3C2442 CPU Frequency scaling support"
220 depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
221 select S3C2410_CPUFREQ_UTILS
224 CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
226 config ARM_S3C64XX_CPUFREQ
227 bool "Samsung S3C64XX"
228 depends on CPU_S3C6410
231 This adds the CPUFreq driver for Samsung S3C6410 SoC.
235 config ARM_S5PV210_CPUFREQ
236 bool "Samsung S5PV210 and S5PC110"
237 depends on CPU_S5PV210
240 This adds the CPUFreq driver for Samsung S5PV210 and
245 config ARM_SA1100_CPUFREQ
248 config ARM_SA1110_CPUFREQ
251 config ARM_SPEAR_CPUFREQ
252 bool "SPEAr CPUFreq support"
253 depends on PLAT_SPEAR
256 This adds the CPUFreq driver support for SPEAr SOCs.
258 config ARM_TEGRA_CPUFREQ
259 bool "TEGRA CPUFreq support"
260 depends on ARCH_TEGRA
263 This adds the CPUFreq driver support for TEGRA SOCs.
265 config ARM_PXA2xx_CPUFREQ
266 tristate "Intel PXA2xx CPUfreq driver"
267 depends on PXA27x || PXA25x
269 This add the CPUFreq driver support for Intel PXA2xx SOCs.