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1# SPDX-License-Identifier: GPL-2.0-only
2#
3# ARM CPU Frequency scaling drivers
4#
5
6config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
7 tristate "Allwinner nvmem based SUN50I CPUFreq driver"
8 depends on ARCH_SUNXI || COMPILE_TEST
9 depends on NVMEM_SUNXI_SID
10 select PM_OPP
11 help
12 This adds the nvmem based CPUFreq driver for Allwinner
13 h6 SoC.
14
15 To compile this driver as a module, choose M here: the
16 module will be called sun50i-cpufreq-nvmem.
17
18config ARM_APPLE_SOC_CPUFREQ
19 tristate "Apple Silicon SoC CPUFreq support"
20 depends on ARCH_APPLE || (COMPILE_TEST && 64BIT)
21 select PM_OPP
22 default ARCH_APPLE
23 help
24 This adds the CPUFreq driver for Apple Silicon machines
25 (e.g. Apple M1).
26
27config ARM_ARMADA_37XX_CPUFREQ
28 tristate "Armada 37xx CPUFreq support"
29 depends on ARCH_MVEBU || COMPILE_TEST
30 depends on CPUFREQ_DT
31 help
32 This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
33 The Armada 37xx PMU supports 4 frequency and VDD levels.
34
35config ARM_ARMADA_8K_CPUFREQ
36 tristate "Armada 8K CPUFreq driver"
37 depends on ARCH_MVEBU || COMPILE_TEST
38 depends on CPUFREQ_DT
39 select ARMADA_AP_CPU_CLK if COMMON_CLK
40 help
41 This enables the CPUFreq driver support for Marvell
42 Armada8k SOCs.
43 Armada8K device has the AP806 which supports scaling
44 to any full integer divider.
45
46 If in doubt, say N.
47
48config ARM_SCPI_CPUFREQ
49 tristate "SCPI based CPUfreq driver"
50 depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
51 help
52 This adds the CPUfreq driver support for ARM platforms using SCPI
53 protocol for CPU power management.
54
55 This driver uses SCPI Message Protocol driver to interact with the
56 firmware providing the CPU DVFS functionality.
57
58config ARM_VEXPRESS_SPC_CPUFREQ
59 tristate "Versatile Express SPC based CPUfreq driver"
60 depends on ARM_CPU_TOPOLOGY && HAVE_CLK
61 depends on ARCH_VEXPRESS_SPC || COMPILE_TEST
62 select PM_OPP
63 help
64 This add the CPUfreq driver support for Versatile Express
65 big.LITTLE platforms using SPC for power management.
66
67config ARM_BRCMSTB_AVS_CPUFREQ
68 tristate "Broadcom STB AVS CPUfreq driver"
69 depends on (ARCH_BRCMSTB && !ARM_SCMI_CPUFREQ) || COMPILE_TEST
70 default y
71 help
72 Some Broadcom STB SoCs use a co-processor running proprietary firmware
73 ("AVS") to handle voltage and frequency scaling. This driver provides
74 a standard CPUfreq interface to the firmware.
75
76 Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
77
78config ARM_HIGHBANK_CPUFREQ
79 tristate "Calxeda Highbank-based"
80 depends on ARCH_HIGHBANK || COMPILE_TEST
81 depends on CPUFREQ_DT && REGULATOR && PL320_MBOX
82 default m
83 help
84 This adds the CPUFreq driver for Calxeda Highbank SoC
85 based boards.
86
87 If in doubt, say N.
88
89config ARM_IMX6Q_CPUFREQ
90 tristate "Freescale i.MX6 cpufreq support"
91 depends on ARCH_MXC
92 depends on REGULATOR_ANATOP
93 depends on NVMEM_IMX_OCOTP || COMPILE_TEST
94 select PM_OPP
95 help
96 This adds cpufreq driver support for Freescale i.MX6 series SoCs.
97
98 If in doubt, say N.
99
100config ARM_IMX_CPUFREQ_DT
101 tristate "Freescale i.MX8M cpufreq support"
102 depends on CPUFREQ_DT
103 depends on ARCH_MXC || COMPILE_TEST
104 help
105 This adds cpufreq driver support for Freescale i.MX7/i.MX8M
106 series SoCs, based on cpufreq-dt.
107
108 If in doubt, say N.
109
110config ARM_KIRKWOOD_CPUFREQ
111 def_bool MACH_KIRKWOOD
112 help
113 This adds the CPUFreq driver for Marvell Kirkwood
114 SoCs.
115
116config ARM_MEDIATEK_CPUFREQ
117 tristate "CPU Frequency scaling support for MediaTek SoCs"
118 depends on ARCH_MEDIATEK || COMPILE_TEST
119 depends on REGULATOR
120 select PM_OPP
121 help
122 This adds the CPUFreq driver support for MediaTek SoCs.
123
124config ARM_MEDIATEK_CPUFREQ_HW
125 tristate "MediaTek CPUFreq HW driver"
126 depends on ARCH_MEDIATEK || COMPILE_TEST
127 default m
128 help
129 Support for the CPUFreq HW driver.
130 Some MediaTek chipsets have a HW engine to offload the steps
131 necessary for changing the frequency of the CPUs. Firmware loaded
132 in this engine exposes a programming interface to the OS.
133 The driver implements the cpufreq interface for this HW engine.
134 Say Y if you want to support CPUFreq HW.
135
136config ARM_OMAP2PLUS_CPUFREQ
137 bool "TI OMAP2+"
138 depends on ARCH_OMAP2PLUS || COMPILE_TEST
139 default ARCH_OMAP2PLUS
140
141config ARM_QCOM_CPUFREQ_NVMEM
142 tristate "Qualcomm nvmem based CPUFreq"
143 depends on ARCH_QCOM || COMPILE_TEST
144 depends on NVMEM_QCOM_QFPROM
145 depends on QCOM_SMEM
146 select PM_OPP
147 help
148 This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
149
150 If in doubt, say N.
151
152config ARM_QCOM_CPUFREQ_HW
153 tristate "QCOM CPUFreq HW driver"
154 depends on ARCH_QCOM || COMPILE_TEST
155 depends on COMMON_CLK
156 help
157 Support for the CPUFreq HW driver.
158 Some QCOM chipsets have a HW engine to offload the steps
159 necessary for changing the frequency of the CPUs. Firmware loaded
160 in this engine exposes a programming interface to the OS.
161 The driver implements the cpufreq interface for this HW engine.
162 Say Y if you want to support CPUFreq HW.
163
164config ARM_RASPBERRYPI_CPUFREQ
165 tristate "Raspberry Pi cpufreq support"
166 depends on CLK_RASPBERRYPI || COMPILE_TEST
167 help
168 This adds the CPUFreq driver for Raspberry Pi
169
170 If in doubt, say N.
171
172config ARM_S3C64XX_CPUFREQ
173 bool "Samsung S3C64XX"
174 depends on CPU_S3C6410 || COMPILE_TEST
175 default y
176 help
177 This adds the CPUFreq driver for Samsung S3C6410 SoC.
178
179 If in doubt, say N.
180
181config ARM_S5PV210_CPUFREQ
182 bool "Samsung S5PV210 and S5PC110"
183 depends on CPU_S5PV210 || COMPILE_TEST
184 default y
185 help
186 This adds the CPUFreq driver for Samsung S5PV210 and
187 S5PC110 SoCs.
188
189 If in doubt, say N.
190
191config ARM_SA1110_CPUFREQ
192 bool
193
194config ARM_SCMI_CPUFREQ
195 tristate "SCMI based CPUfreq driver"
196 depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
197 select PM_OPP
198 help
199 This adds the CPUfreq driver support for ARM platforms using SCMI
200 protocol for CPU power management.
201
202 This driver uses SCMI Message Protocol driver to interact with the
203 firmware providing the CPU DVFS functionality.
204
205config ARM_SPEAR_CPUFREQ
206 bool "SPEAr CPUFreq support"
207 depends on PLAT_SPEAR || COMPILE_TEST
208 default y
209 help
210 This adds the CPUFreq driver support for SPEAr SOCs.
211
212config ARM_STI_CPUFREQ
213 tristate "STi CPUFreq support"
214 depends on CPUFREQ_DT
215 depends on SOC_STIH407 || COMPILE_TEST
216 help
217 This driver uses the generic OPP framework to match the running
218 platform with a predefined set of suitable values. If not provided
219 we will fall-back so safe-values contained in Device Tree. Enable
220 this config option if you wish to add CPUFreq support for STi based
221 SoCs.
222
223config ARM_TEGRA20_CPUFREQ
224 tristate "Tegra20/30 CPUFreq support"
225 depends on ARCH_TEGRA || COMPILE_TEST
226 depends on CPUFREQ_DT
227 default y
228 help
229 This adds the CPUFreq driver support for Tegra20/30 SOCs.
230
231config ARM_TEGRA124_CPUFREQ
232 bool "Tegra124 CPUFreq support"
233 depends on ARCH_TEGRA || COMPILE_TEST
234 depends on CPUFREQ_DT
235 default y
236 help
237 This adds the CPUFreq driver support for Tegra124 SOCs.
238
239config ARM_TEGRA186_CPUFREQ
240 tristate "Tegra186 CPUFreq support"
241 depends on ARCH_TEGRA || COMPILE_TEST
242 depends on TEGRA_BPMP
243 help
244 This adds the CPUFreq driver support for Tegra186 SOCs.
245
246config ARM_TEGRA194_CPUFREQ
247 tristate "Tegra194 CPUFreq support"
248 depends on ARCH_TEGRA_194_SOC || (64BIT && COMPILE_TEST)
249 depends on TEGRA_BPMP
250 default y
251 help
252 This adds CPU frequency driver support for Tegra194 SOCs.
253
254config ARM_TI_CPUFREQ
255 bool "Texas Instruments CPUFreq support"
256 depends on ARCH_OMAP2PLUS || ARCH_K3 || COMPILE_TEST
257 default y
258 help
259 This driver enables valid OPPs on the running platform based on
260 values contained within the SoC in use. Enable this in order to
261 use the cpufreq-dt driver on all Texas Instruments platforms that
262 provide dt based operating-points-v2 tables with opp-supported-hw
263 data provided. Required for cpufreq support on AM335x, AM437x,
264 DRA7x, and AM57x platforms.
265
266config ARM_PXA2xx_CPUFREQ
267 tristate "Intel PXA2xx CPUfreq driver"
268 depends on PXA27x || PXA25x || COMPILE_TEST
269 help
270 This add the CPUFreq driver support for Intel PXA2xx SOCs.
271
272 If in doubt, say N.
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# ARM CPU Frequency scaling drivers
4#
5
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
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
34config ARM_ARMADA_37XX_CPUFREQ
35 tristate "Armada 37xx CPUFreq support"
36 depends on ARCH_MVEBU && CPUFREQ_DT
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
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
52# big LITTLE core layer and glue drivers
53config ARM_BIG_LITTLE_CPUFREQ
54 tristate "Generic ARM big LITTLE CPUfreq driver"
55 depends on ARM_CPU_TOPOLOGY && HAVE_CLK
56 select PM_OPP
57 help
58 This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
59
60config ARM_SCPI_CPUFREQ
61 tristate "SCPI based CPUfreq driver"
62 depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
63 help
64 This adds the CPUfreq driver support for ARM platforms using SCPI
65 protocol for CPU power management.
66
67 This driver uses SCPI Message Protocol driver to interact with the
68 firmware providing the CPU DVFS functionality.
69
70config ARM_VEXPRESS_SPC_CPUFREQ
71 tristate "Versatile Express SPC based CPUfreq driver"
72 depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
73 help
74 This add the CPUfreq driver support for Versatile Express
75 big.LITTLE platforms using SPC for power management.
76
77config ARM_BRCMSTB_AVS_CPUFREQ
78 tristate "Broadcom STB AVS CPUfreq driver"
79 depends on ARCH_BRCMSTB || COMPILE_TEST
80 default y
81 help
82 Some Broadcom STB SoCs use a co-processor running proprietary firmware
83 ("AVS") to handle voltage and frequency scaling. This driver provides
84 a standard CPUfreq interface to to the firmware.
85
86 Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
87
88config ARM_HIGHBANK_CPUFREQ
89 tristate "Calxeda Highbank-based"
90 depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
91 default m
92 help
93 This adds the CPUFreq driver for Calxeda Highbank SoC
94 based boards.
95
96 If in doubt, say N.
97
98config ARM_IMX6Q_CPUFREQ
99 tristate "Freescale i.MX6 cpufreq support"
100 depends on ARCH_MXC
101 depends on REGULATOR_ANATOP
102 select PM_OPP
103 help
104 This adds cpufreq driver support for Freescale i.MX6 series SoCs.
105
106 If in doubt, say N.
107
108config ARM_IMX_CPUFREQ_DT
109 tristate "Freescale i.MX8M cpufreq support"
110 depends on ARCH_MXC && CPUFREQ_DT
111 help
112 This adds cpufreq driver support for Freescale i.MX8M series SoCs,
113 based on cpufreq-dt.
114
115 If in doubt, say N.
116
117config ARM_KIRKWOOD_CPUFREQ
118 def_bool MACH_KIRKWOOD
119 help
120 This adds the CPUFreq driver for Marvell Kirkwood
121 SoCs.
122
123config ARM_MEDIATEK_CPUFREQ
124 tristate "CPU Frequency scaling support for MediaTek SoCs"
125 depends on ARCH_MEDIATEK && REGULATOR
126 select PM_OPP
127 help
128 This adds the CPUFreq driver support for MediaTek SoCs.
129
130config ARM_OMAP2PLUS_CPUFREQ
131 bool "TI OMAP2+"
132 depends on ARCH_OMAP2PLUS
133 default ARCH_OMAP2PLUS
134
135config ARM_QCOM_CPUFREQ_NVMEM
136 tristate "Qualcomm nvmem based CPUFreq"
137 depends on ARM64
138 depends on QCOM_QFPROM
139 depends on QCOM_SMEM
140 select PM_OPP
141 help
142 This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
143
144 If in doubt, say N.
145
146config ARM_QCOM_CPUFREQ_HW
147 tristate "QCOM CPUFreq HW driver"
148 depends on ARCH_QCOM || COMPILE_TEST
149 help
150 Support for the CPUFreq HW driver.
151 Some QCOM 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.
156
157config ARM_RASPBERRYPI_CPUFREQ
158 tristate "Raspberry Pi cpufreq support"
159 depends on CLK_RASPBERRYPI || COMPILE_TEST
160 help
161 This adds the CPUFreq driver for Raspberry Pi
162
163 If in doubt, say N.
164
165config ARM_S3C_CPUFREQ
166 bool
167 help
168 Internal configuration node for common cpufreq on Samsung SoC
169
170config ARM_S3C24XX_CPUFREQ
171 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
172 depends on ARCH_S3C24XX
173 select ARM_S3C_CPUFREQ
174 help
175 This enables the CPUfreq driver for the Samsung S3C24XX family
176 of CPUs.
177
178 For details, take a look at <file:Documentation/cpu-freq>.
179
180 If in doubt, say N.
181
182config ARM_S3C24XX_CPUFREQ_DEBUG
183 bool "Debug CPUfreq Samsung driver core"
184 depends on ARM_S3C24XX_CPUFREQ
185 help
186 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
187
188config ARM_S3C24XX_CPUFREQ_IODEBUG
189 bool "Debug CPUfreq Samsung driver IO timing"
190 depends on ARM_S3C24XX_CPUFREQ
191 help
192 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
193
194config ARM_S3C24XX_CPUFREQ_DEBUGFS
195 bool "Export debugfs for CPUFreq"
196 depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
197 help
198 Export status information via debugfs.
199
200config ARM_S3C2410_CPUFREQ
201 bool
202 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
203 select S3C2410_CPUFREQ_UTILS
204 help
205 CPU Frequency scaling support for S3C2410
206
207config ARM_S3C2412_CPUFREQ
208 bool
209 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
210 default y
211 select S3C2412_IOTIMING
212 help
213 CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
214
215config ARM_S3C2416_CPUFREQ
216 bool "S3C2416 CPU Frequency scaling support"
217 depends on CPU_S3C2416
218 help
219 This adds the CPUFreq driver for the Samsung S3C2416 and
220 S3C2450 SoC. The S3C2416 supports changing the rate of the
221 armdiv clock source and also entering a so called dynamic
222 voltage scaling mode in which it is possible to reduce the
223 core voltage of the CPU.
224
225 If in doubt, say N.
226
227config ARM_S3C2416_CPUFREQ_VCORESCALE
228 bool "Allow voltage scaling for S3C2416 arm core"
229 depends on ARM_S3C2416_CPUFREQ && REGULATOR
230 help
231 Enable CPU voltage scaling when entering the dvs mode.
232 It uses information gathered through existing hardware and
233 tests but not documented in any datasheet.
234
235 If in doubt, say N.
236
237config ARM_S3C2440_CPUFREQ
238 bool "S3C2440/S3C2442 CPU Frequency scaling support"
239 depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
240 select S3C2410_CPUFREQ_UTILS
241 default y
242 help
243 CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
244
245config ARM_S3C64XX_CPUFREQ
246 bool "Samsung S3C64XX"
247 depends on CPU_S3C6410
248 default y
249 help
250 This adds the CPUFreq driver for Samsung S3C6410 SoC.
251
252 If in doubt, say N.
253
254config ARM_S5PV210_CPUFREQ
255 bool "Samsung S5PV210 and S5PC110"
256 depends on CPU_S5PV210
257 default y
258 help
259 This adds the CPUFreq driver for Samsung S5PV210 and
260 S5PC110 SoCs.
261
262 If in doubt, say N.
263
264config ARM_SA1100_CPUFREQ
265 bool
266
267config ARM_SA1110_CPUFREQ
268 bool
269
270config ARM_SCMI_CPUFREQ
271 tristate "SCMI based CPUfreq driver"
272 depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
273 select PM_OPP
274 help
275 This adds the CPUfreq driver support for ARM platforms using SCMI
276 protocol for CPU power management.
277
278 This driver uses SCMI Message Protocol driver to interact with the
279 firmware providing the CPU DVFS functionality.
280
281config ARM_SPEAR_CPUFREQ
282 bool "SPEAr CPUFreq support"
283 depends on PLAT_SPEAR
284 default y
285 help
286 This adds the CPUFreq driver support for SPEAr SOCs.
287
288config ARM_STI_CPUFREQ
289 tristate "STi CPUFreq support"
290 depends on SOC_STIH407
291 help
292 This driver uses the generic OPP framework to match the running
293 platform with a predefined set of suitable values. If not provided
294 we will fall-back so safe-values contained in Device Tree. Enable
295 this config option if you wish to add CPUFreq support for STi based
296 SoCs.
297
298config ARM_TANGO_CPUFREQ
299 bool
300 depends on CPUFREQ_DT && ARCH_TANGO
301 default y
302
303config ARM_TEGRA20_CPUFREQ
304 tristate "Tegra20 CPUFreq support"
305 depends on ARCH_TEGRA
306 default y
307 help
308 This adds the CPUFreq driver support for Tegra20 SOCs.
309
310config ARM_TEGRA124_CPUFREQ
311 bool "Tegra124 CPUFreq support"
312 depends on ARCH_TEGRA && CPUFREQ_DT
313 default y
314 help
315 This adds the CPUFreq driver support for Tegra124 SOCs.
316
317config ARM_TEGRA186_CPUFREQ
318 tristate "Tegra186 CPUFreq support"
319 depends on ARCH_TEGRA && TEGRA_BPMP
320 help
321 This adds the CPUFreq driver support for Tegra186 SOCs.
322
323config ARM_TI_CPUFREQ
324 bool "Texas Instruments CPUFreq support"
325 depends on ARCH_OMAP2PLUS
326 help
327 This driver enables valid OPPs on the running platform based on
328 values contained within the SoC in use. Enable this in order to
329 use the cpufreq-dt driver on all Texas Instruments platforms that
330 provide dt based operating-points-v2 tables with opp-supported-hw
331 data provided. Required for cpufreq support on AM335x, AM437x,
332 DRA7x, and AM57x platforms.
333
334config ARM_PXA2xx_CPUFREQ
335 tristate "Intel PXA2xx CPUfreq driver"
336 depends on PXA27x || PXA25x
337 help
338 This add the CPUFreq driver support for Intel PXA2xx SOCs.
339
340 If in doubt, say N.