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
138 This adds the CPUFreq driver support for Mediatek MT8173 SoC.
140 config ARM_OMAP2PLUS_CPUFREQ
142 depends on ARCH_OMAP2PLUS
143 default ARCH_OMAP2PLUS
145 config ARM_S3C_CPUFREQ
148 Internal configuration node for common cpufreq on Samsung SoC
150 config ARM_S3C24XX_CPUFREQ
151 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
152 depends on ARCH_S3C24XX
153 select ARM_S3C_CPUFREQ
155 This enables the CPUfreq driver for the Samsung S3C24XX family
158 For details, take a look at <file:Documentation/cpu-freq>.
162 config ARM_S3C24XX_CPUFREQ_DEBUG
163 bool "Debug CPUfreq Samsung driver core"
164 depends on ARM_S3C24XX_CPUFREQ
166 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
168 config ARM_S3C24XX_CPUFREQ_IODEBUG
169 bool "Debug CPUfreq Samsung driver IO timing"
170 depends on ARM_S3C24XX_CPUFREQ
172 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
174 config ARM_S3C24XX_CPUFREQ_DEBUGFS
175 bool "Export debugfs for CPUFreq"
176 depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
178 Export status information via debugfs.
180 config ARM_S3C2410_CPUFREQ
182 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
183 select S3C2410_CPUFREQ_UTILS
185 CPU Frequency scaling support for S3C2410
187 config ARM_S3C2412_CPUFREQ
189 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
191 select S3C2412_IOTIMING
193 CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
195 config ARM_S3C2416_CPUFREQ
196 bool "S3C2416 CPU Frequency scaling support"
197 depends on CPU_S3C2416
199 This adds the CPUFreq driver for the Samsung S3C2416 and
200 S3C2450 SoC. The S3C2416 supports changing the rate of the
201 armdiv clock source and also entering a so called dynamic
202 voltage scaling mode in which it is possible to reduce the
203 core voltage of the CPU.
207 config ARM_S3C2416_CPUFREQ_VCORESCALE
208 bool "Allow voltage scaling for S3C2416 arm core"
209 depends on ARM_S3C2416_CPUFREQ && REGULATOR
211 Enable CPU voltage scaling when entering the dvs mode.
212 It uses information gathered through existing hardware and
213 tests but not documented in any datasheet.
217 config ARM_S3C2440_CPUFREQ
218 bool "S3C2440/S3C2442 CPU Frequency scaling support"
219 depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
220 select S3C2410_CPUFREQ_UTILS
223 CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
225 config ARM_S3C64XX_CPUFREQ
226 bool "Samsung S3C64XX"
227 depends on CPU_S3C6410
230 This adds the CPUFreq driver for Samsung S3C6410 SoC.
234 config ARM_S5PV210_CPUFREQ
235 bool "Samsung S5PV210 and S5PC110"
236 depends on CPU_S5PV210
239 This adds the CPUFreq driver for Samsung S5PV210 and
244 config ARM_SA1100_CPUFREQ
247 config ARM_SA1110_CPUFREQ
250 config ARM_SPEAR_CPUFREQ
251 bool "SPEAr CPUFreq support"
252 depends on PLAT_SPEAR
255 This adds the CPUFreq driver support for SPEAr SOCs.
257 config ARM_TEGRA20_CPUFREQ
258 bool "Tegra20 CPUFreq support"
259 depends on ARCH_TEGRA
262 This adds the CPUFreq driver support for Tegra20 SOCs.
264 config ARM_TEGRA124_CPUFREQ
265 tristate "Tegra124 CPUFreq support"
266 depends on ARCH_TEGRA && CPUFREQ_DT
269 This adds the CPUFreq driver support for Tegra124 SOCs.
271 config ARM_PXA2xx_CPUFREQ
272 tristate "Intel PXA2xx CPUfreq driver"
273 depends on PXA27x || PXA25x
275 This add the CPUFreq driver support for Intel PXA2xx SOCs.