Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-block.git] / drivers / cpufreq / Kconfig.arm
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ec8f24b7 1# SPDX-License-Identifier: GPL-2.0-only
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2#
3# ARM CPU Frequency scaling drivers
4#
5
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6config ACPI_CPPC_CPUFREQ
7 tristate "CPUFreq driver based on the ACPI CPPC spec"
8 depends on ACPI_PROCESSOR
9 select ACPI_CPPC_LIB
10 help
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.
19
20 If in doubt, say N.
21
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22config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
23 tristate "Allwinner nvmem based SUN50I CPUFreq driver"
24 depends on ARCH_SUNXI
25 depends on NVMEM_SUNXI_SID
26 select PM_OPP
27 help
28 This adds the nvmem based CPUFreq driver for Allwinner
29 h6 SoC.
30
31 To compile this driver as a module, choose M here: the
32 module will be called sun50i-cpufreq-nvmem.
33
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34config ARM_ARMADA_37XX_CPUFREQ
35 tristate "Armada 37xx CPUFreq support"
0cf442c6 36 depends on ARCH_MVEBU && CPUFREQ_DT
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37 help
38 This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
39 The Armada 37xx PMU supports 4 frequency and VDD levels.
40
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41config ARM_ARMADA_8K_CPUFREQ
42 tristate "Armada 8K CPUFreq driver"
43 depends on ARCH_MVEBU && CPUFREQ_DT
44 help
45 This enables the CPUFreq driver support for Marvell
46 Armada8k SOCs.
47 Armada8K device has the AP806 which supports scaling
48 to any full integer divider.
49
50 If in doubt, say N.
51
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52config ARM_SCPI_CPUFREQ
53 tristate "SCPI based CPUfreq driver"
5c8b2623 54 depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
b17d2f8d 55 help
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56 This adds the CPUfreq driver support for ARM platforms using SCPI
57 protocol for CPU power management.
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58
59 This driver uses SCPI Message Protocol driver to interact with the
60 firmware providing the CPU DVFS functionality.
61
62config ARM_VEXPRESS_SPC_CPUFREQ
63 tristate "Versatile Express SPC based CPUfreq driver"
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64 depends on ARM_CPU_TOPOLOGY && HAVE_CLK
65 depends on ARCH_VEXPRESS_SPC
66 select PM_OPP
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67 help
68 This add the CPUfreq driver support for Versatile Express
69 big.LITTLE platforms using SPC for power management.
70
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71config ARM_BRCMSTB_AVS_CPUFREQ
72 tristate "Broadcom STB AVS CPUfreq driver"
73 depends on ARCH_BRCMSTB || COMPILE_TEST
74 default y
75 help
76 Some Broadcom STB SoCs use a co-processor running proprietary firmware
77 ("AVS") to handle voltage and frequency scaling. This driver provides
78 a standard CPUfreq interface to to the firmware.
79
80 Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
81
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82config ARM_HIGHBANK_CPUFREQ
83 tristate "Calxeda Highbank-based"
bbcf0719 84 depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
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85 default m
86 help
87 This adds the CPUFreq driver for Calxeda Highbank SoC
88 based boards.
89
90 If in doubt, say N.
91
92config ARM_IMX6Q_CPUFREQ
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93 tristate "Freescale i.MX6 cpufreq support"
94 depends on ARCH_MXC
a0ea048a 95 depends on REGULATOR_ANATOP
7e021687 96 select PM_OPP
a0ea048a 97 help
1d0eaae9 98 This adds cpufreq driver support for Freescale i.MX6 series SoCs.
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99
100 If in doubt, say N.
101
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102config ARM_IMX_CPUFREQ_DT
103 tristate "Freescale i.MX8M cpufreq support"
104 depends on ARCH_MXC && CPUFREQ_DT
105 help
106 This adds cpufreq driver support for Freescale i.MX8M series SoCs,
107 based on cpufreq-dt.
108
109 If in doubt, say N.
110
a0ea048a 111config ARM_KIRKWOOD_CPUFREQ
6c8df11d 112 def_bool MACH_KIRKWOOD
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113 help
114 This adds the CPUFreq driver for Marvell Kirkwood
115 SoCs.
116
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117config ARM_MEDIATEK_CPUFREQ
118 tristate "CPU Frequency scaling support for MediaTek SoCs"
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119 depends on ARCH_MEDIATEK && REGULATOR
120 select PM_OPP
121 help
501c574f 122 This adds the CPUFreq driver support for MediaTek SoCs.
1453863f 123
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124config ARM_OMAP2PLUS_CPUFREQ
125 bool "TI OMAP2+"
2d59dcfb 126 depends on ARCH_OMAP2PLUS
b09db45c 127 default ARCH_OMAP2PLUS
b09db45c 128
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129config ARM_QCOM_CPUFREQ_NVMEM
130 tristate "Qualcomm nvmem based CPUFreq"
a8811ec7 131 depends on ARCH_QCOM
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132 depends on QCOM_QFPROM
133 depends on QCOM_SMEM
134 select PM_OPP
135 help
136 This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
137
138 If in doubt, say N.
139
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140config ARM_QCOM_CPUFREQ_HW
141 tristate "QCOM CPUFreq HW driver"
142 depends on ARCH_QCOM || COMPILE_TEST
143 help
144 Support for the CPUFreq HW driver.
145 Some QCOM chipsets have a HW engine to offload the steps
146 necessary for changing the frequency of the CPUs. Firmware loaded
147 in this engine exposes a programming interface to the OS.
148 The driver implements the cpufreq interface for this HW engine.
149 Say Y if you want to support CPUFreq HW.
150
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151config ARM_RASPBERRYPI_CPUFREQ
152 tristate "Raspberry Pi cpufreq support"
153 depends on CLK_RASPBERRYPI || COMPILE_TEST
154 help
155 This adds the CPUFreq driver for Raspberry Pi
156
157 If in doubt, say N.
158
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159config ARM_S3C_CPUFREQ
160 bool
161 help
162 Internal configuration node for common cpufreq on Samsung SoC
163
164config ARM_S3C24XX_CPUFREQ
165 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
166 depends on ARCH_S3C24XX
167 select ARM_S3C_CPUFREQ
168 help
169 This enables the CPUfreq driver for the Samsung S3C24XX family
170 of CPUs.
171
172 For details, take a look at <file:Documentation/cpu-freq>.
173
174 If in doubt, say N.
175
176config ARM_S3C24XX_CPUFREQ_DEBUG
177 bool "Debug CPUfreq Samsung driver core"
178 depends on ARM_S3C24XX_CPUFREQ
179 help
180 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
181
182config ARM_S3C24XX_CPUFREQ_IODEBUG
183 bool "Debug CPUfreq Samsung driver IO timing"
184 depends on ARM_S3C24XX_CPUFREQ
185 help
186 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
187
188config ARM_S3C24XX_CPUFREQ_DEBUGFS
189 bool "Export debugfs for CPUFreq"
190 depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
191 help
192 Export status information via debugfs.
193
194config ARM_S3C2410_CPUFREQ
195 bool
196 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
197 select S3C2410_CPUFREQ_UTILS
198 help
199 CPU Frequency scaling support for S3C2410
200
201config ARM_S3C2412_CPUFREQ
202 bool
203 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
204 default y
205 select S3C2412_IOTIMING
206 help
207 CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
208
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209config ARM_S3C2416_CPUFREQ
210 bool "S3C2416 CPU Frequency scaling support"
211 depends on CPU_S3C2416
212 help
213 This adds the CPUFreq driver for the Samsung S3C2416 and
214 S3C2450 SoC. The S3C2416 supports changing the rate of the
215 armdiv clock source and also entering a so called dynamic
216 voltage scaling mode in which it is possible to reduce the
735dc249 217 core voltage of the CPU.
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218
219 If in doubt, say N.
220
221config ARM_S3C2416_CPUFREQ_VCORESCALE
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222 bool "Allow voltage scaling for S3C2416 arm core"
223 depends on ARM_S3C2416_CPUFREQ && REGULATOR
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224 help
225 Enable CPU voltage scaling when entering the dvs mode.
226 It uses information gathered through existing hardware and
227 tests but not documented in any datasheet.
228
229 If in doubt, say N.
230
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231config ARM_S3C2440_CPUFREQ
232 bool "S3C2440/S3C2442 CPU Frequency scaling support"
233 depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
234 select S3C2410_CPUFREQ_UTILS
235 default y
236 help
237 CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
238
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239config ARM_S3C64XX_CPUFREQ
240 bool "Samsung S3C64XX"
241 depends on CPU_S3C6410
242 default y
243 help
244 This adds the CPUFreq driver for Samsung S3C6410 SoC.
245
246 If in doubt, say N.
247
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248config ARM_S5PV210_CPUFREQ
249 bool "Samsung S5PV210 and S5PC110"
250 depends on CPU_S5PV210
251 default y
252 help
253 This adds the CPUFreq driver for Samsung S5PV210 and
254 S5PC110 SoCs.
255
256 If in doubt, say N.
257
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258config ARM_SA1100_CPUFREQ
259 bool
260
261config ARM_SA1110_CPUFREQ
262 bool
263
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264config ARM_SCMI_CPUFREQ
265 tristate "SCMI based CPUfreq driver"
266 depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
267 select PM_OPP
268 help
269 This adds the CPUfreq driver support for ARM platforms using SCMI
270 protocol for CPU power management.
271
272 This driver uses SCMI Message Protocol driver to interact with the
273 firmware providing the CPU DVFS functionality.
274
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275config ARM_SPEAR_CPUFREQ
276 bool "SPEAr CPUFreq support"
277 depends on PLAT_SPEAR
278 default y
279 help
280 This adds the CPUFreq driver support for SPEAr SOCs.
dbb8d76e 281
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282config ARM_STI_CPUFREQ
283 tristate "STi CPUFreq support"
284 depends on SOC_STIH407
285 help
286 This driver uses the generic OPP framework to match the running
287 platform with a predefined set of suitable values. If not provided
288 we will fall-back so safe-values contained in Device Tree. Enable
289 this config option if you wish to add CPUFreq support for STi based
290 SoCs.
291
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292config ARM_TANGO_CPUFREQ
293 bool
294 depends on CPUFREQ_DT && ARCH_TANGO
295 default y
296
109e13ea 297config ARM_TEGRA20_CPUFREQ
7732c9e0 298 tristate "Tegra20 CPUFreq support"
dbb8d76e 299 depends on ARCH_TEGRA
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300 default y
301 help
109e13ea 302 This adds the CPUFreq driver support for Tegra20 SOCs.
608eab22 303
9eb15dbb 304config ARM_TEGRA124_CPUFREQ
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305 bool "Tegra124 CPUFreq support"
306 depends on ARCH_TEGRA && CPUFREQ_DT
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307 default y
308 help
309 This adds the CPUFreq driver support for Tegra124 SOCs.
310
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311config ARM_TEGRA186_CPUFREQ
312 tristate "Tegra186 CPUFreq support"
313 depends on ARCH_TEGRA && TEGRA_BPMP
314 help
315 This adds the CPUFreq driver support for Tegra186 SOCs.
316
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317config ARM_TI_CPUFREQ
318 bool "Texas Instruments CPUFreq support"
319 depends on ARCH_OMAP2PLUS
320 help
321 This driver enables valid OPPs on the running platform based on
322 values contained within the SoC in use. Enable this in order to
323 use the cpufreq-dt driver on all Texas Instruments platforms that
324 provide dt based operating-points-v2 tables with opp-supported-hw
325 data provided. Required for cpufreq support on AM335x, AM437x,
326 DRA7x, and AM57x platforms.
327
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328config ARM_PXA2xx_CPUFREQ
329 tristate "Intel PXA2xx CPUfreq driver"
330 depends on PXA27x || PXA25x
331 help
332 This add the CPUFreq driver support for Intel PXA2xx SOCs.
333
334 If in doubt, say N.