1 # SPDX-License-Identifier: GPL-2.0-only
3 # ARM CPU Frequency scaling drivers
6 config ACPI_CPPC_CPUFREQ
7 tristate "CPUFreq driver based on the ACPI CPPC spec"
8 depends on ACPI_PROCESSOR
11 This adds a CPUFreq driver which uses CPPC methods
12 as described in the ACPIv5.1 spec. CPPC stands for
13 Collaborative Processor Performance Controls. It
14 is based on an abstract continuous scale of CPU
15 performance values which allows the remote power
16 processor to flexibly optimize for power and
17 performance. CPPC relies on power management firmware
18 support for its operation.
22 config ACPI_CPPC_CPUFREQ_FIE
23 bool "Frequency Invariance support for CPPC cpufreq driver"
24 depends on ACPI_CPPC_CPUFREQ && GENERIC_ARCH_TOPOLOGY
27 This extends frequency invariance support in the CPPC cpufreq driver,
28 by using CPPC delivered and reference performance counters.
32 config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
33 tristate "Allwinner nvmem based SUN50I CPUFreq driver"
35 depends on NVMEM_SUNXI_SID
38 This adds the nvmem based CPUFreq driver for Allwinner
41 To compile this driver as a module, choose M here: the
42 module will be called sun50i-cpufreq-nvmem.
44 config ARM_APPLE_SOC_CPUFREQ
45 tristate "Apple Silicon SoC CPUFreq support"
46 depends on ARCH_APPLE || (COMPILE_TEST && 64BIT)
50 This adds the CPUFreq driver for Apple Silicon machines
53 config ARM_ARMADA_37XX_CPUFREQ
54 tristate "Armada 37xx CPUFreq support"
55 depends on ARCH_MVEBU && CPUFREQ_DT
57 This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
58 The Armada 37xx PMU supports 4 frequency and VDD levels.
60 config ARM_ARMADA_8K_CPUFREQ
61 tristate "Armada 8K CPUFreq driver"
62 depends on ARCH_MVEBU && CPUFREQ_DT
63 select ARMADA_AP_CPU_CLK
65 This enables the CPUFreq driver support for Marvell
67 Armada8K device has the AP806 which supports scaling
68 to any full integer divider.
72 config ARM_SCPI_CPUFREQ
73 tristate "SCPI based CPUfreq driver"
74 depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
76 This adds the CPUfreq driver support for ARM platforms using SCPI
77 protocol for CPU power management.
79 This driver uses SCPI Message Protocol driver to interact with the
80 firmware providing the CPU DVFS functionality.
82 config ARM_VEXPRESS_SPC_CPUFREQ
83 tristate "Versatile Express SPC based CPUfreq driver"
84 depends on ARM_CPU_TOPOLOGY && HAVE_CLK
85 depends on ARCH_VEXPRESS_SPC
88 This add the CPUfreq driver support for Versatile Express
89 big.LITTLE platforms using SPC for power management.
91 config ARM_BRCMSTB_AVS_CPUFREQ
92 tristate "Broadcom STB AVS CPUfreq driver"
93 depends on (ARCH_BRCMSTB && !ARM_SCMI_CPUFREQ) || COMPILE_TEST
96 Some Broadcom STB SoCs use a co-processor running proprietary firmware
97 ("AVS") to handle voltage and frequency scaling. This driver provides
98 a standard CPUfreq interface to the firmware.
100 Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
102 config ARM_HIGHBANK_CPUFREQ
103 tristate "Calxeda Highbank-based"
104 depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
107 This adds the CPUFreq driver for Calxeda Highbank SoC
112 config ARM_IMX6Q_CPUFREQ
113 tristate "Freescale i.MX6 cpufreq support"
115 depends on REGULATOR_ANATOP
116 depends on NVMEM_IMX_OCOTP || COMPILE_TEST
119 This adds cpufreq driver support for Freescale i.MX6 series SoCs.
123 config ARM_IMX_CPUFREQ_DT
124 tristate "Freescale i.MX8M cpufreq support"
125 depends on ARCH_MXC && CPUFREQ_DT
127 This adds cpufreq driver support for Freescale i.MX7/i.MX8M
128 series SoCs, based on cpufreq-dt.
132 config ARM_KIRKWOOD_CPUFREQ
133 def_bool MACH_KIRKWOOD
135 This adds the CPUFreq driver for Marvell Kirkwood
138 config ARM_MEDIATEK_CPUFREQ
139 tristate "CPU Frequency scaling support for MediaTek SoCs"
140 depends on ARCH_MEDIATEK && REGULATOR
143 This adds the CPUFreq driver support for MediaTek SoCs.
145 config ARM_MEDIATEK_CPUFREQ_HW
146 tristate "MediaTek CPUFreq HW driver"
147 depends on ARCH_MEDIATEK || COMPILE_TEST
150 Support for the CPUFreq HW driver.
151 Some MediaTek chipsets have a HW engine to offload the steps
152 necessary for changing the frequency of the CPUs. Firmware loaded
153 in this engine exposes a programming interface to the OS.
154 The driver implements the cpufreq interface for this HW engine.
155 Say Y if you want to support CPUFreq HW.
157 config ARM_OMAP2PLUS_CPUFREQ
159 depends on ARCH_OMAP2PLUS
160 default ARCH_OMAP2PLUS
162 config ARM_QCOM_CPUFREQ_NVMEM
163 tristate "Qualcomm nvmem based CPUFreq"
165 depends on NVMEM_QCOM_QFPROM
169 This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
173 config ARM_QCOM_CPUFREQ_HW
174 tristate "QCOM CPUFreq HW driver"
175 depends on ARCH_QCOM || COMPILE_TEST
176 depends on COMMON_CLK
178 Support for the CPUFreq HW driver.
179 Some QCOM chipsets have a HW engine to offload the steps
180 necessary for changing the frequency of the CPUs. Firmware loaded
181 in this engine exposes a programming interface to the OS.
182 The driver implements the cpufreq interface for this HW engine.
183 Say Y if you want to support CPUFreq HW.
185 config ARM_RASPBERRYPI_CPUFREQ
186 tristate "Raspberry Pi cpufreq support"
187 depends on CLK_RASPBERRYPI || COMPILE_TEST
189 This adds the CPUFreq driver for Raspberry Pi
193 config ARM_S3C64XX_CPUFREQ
194 bool "Samsung S3C64XX"
195 depends on CPU_S3C6410
198 This adds the CPUFreq driver for Samsung S3C6410 SoC.
202 config ARM_S5PV210_CPUFREQ
203 bool "Samsung S5PV210 and S5PC110"
204 depends on CPU_S5PV210
207 This adds the CPUFreq driver for Samsung S5PV210 and
212 config ARM_SA1110_CPUFREQ
215 config ARM_SCMI_CPUFREQ
216 tristate "SCMI based CPUfreq driver"
217 depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
220 This adds the CPUfreq driver support for ARM platforms using SCMI
221 protocol for CPU power management.
223 This driver uses SCMI Message Protocol driver to interact with the
224 firmware providing the CPU DVFS functionality.
226 config ARM_SPEAR_CPUFREQ
227 bool "SPEAr CPUFreq support"
228 depends on PLAT_SPEAR
231 This adds the CPUFreq driver support for SPEAr SOCs.
233 config ARM_STI_CPUFREQ
234 tristate "STi CPUFreq support"
235 depends on CPUFREQ_DT && SOC_STIH407
237 This driver uses the generic OPP framework to match the running
238 platform with a predefined set of suitable values. If not provided
239 we will fall-back so safe-values contained in Device Tree. Enable
240 this config option if you wish to add CPUFreq support for STi based
243 config ARM_TEGRA20_CPUFREQ
244 tristate "Tegra20/30 CPUFreq support"
245 depends on ARCH_TEGRA && CPUFREQ_DT
248 This adds the CPUFreq driver support for Tegra20/30 SOCs.
250 config ARM_TEGRA124_CPUFREQ
251 bool "Tegra124 CPUFreq support"
252 depends on ARCH_TEGRA && CPUFREQ_DT
255 This adds the CPUFreq driver support for Tegra124 SOCs.
257 config ARM_TEGRA186_CPUFREQ
258 tristate "Tegra186 CPUFreq support"
259 depends on ARCH_TEGRA && TEGRA_BPMP
261 This adds the CPUFreq driver support for Tegra186 SOCs.
263 config ARM_TEGRA194_CPUFREQ
264 tristate "Tegra194 CPUFreq support"
265 depends on ARCH_TEGRA_194_SOC && TEGRA_BPMP
268 This adds CPU frequency driver support for Tegra194 SOCs.
270 config ARM_TI_CPUFREQ
271 bool "Texas Instruments CPUFreq support"
272 depends on ARCH_OMAP2PLUS || ARCH_K3
275 This driver enables valid OPPs on the running platform based on
276 values contained within the SoC in use. Enable this in order to
277 use the cpufreq-dt driver on all Texas Instruments platforms that
278 provide dt based operating-points-v2 tables with opp-supported-hw
279 data provided. Required for cpufreq support on AM335x, AM437x,
280 DRA7x, and AM57x platforms.
282 config ARM_PXA2xx_CPUFREQ
283 tristate "Intel PXA2xx CPUfreq driver"
284 depends on PXA27x || PXA25x
286 This add the CPUFreq driver support for Intel PXA2xx SOCs.