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#
  2# ARM CPU Frequency scaling drivers
  3#
  4
  5config ACPI_CPPC_CPUFREQ
  6	tristate "CPUFreq driver based on the ACPI CPPC spec"
  7	depends on ACPI_PROCESSOR
  8	select ACPI_CPPC_LIB
  9	help
 10	  This adds a CPUFreq driver which uses CPPC methods
 11	  as described in the ACPIv5.1 spec. CPPC stands for
 12	  Collaborative Processor Performance Controls. It
 13	  is based on an abstract continuous scale of CPU
 14	  performance values which allows the remote power
 15	  processor to flexibly optimize for power and
 16	  performance. CPPC relies on power management firmware
 17	  support for its operation.
 18
 19	  If in doubt, say N.
 
 
 
 
 
 
 
 
 
 
 20
 21config ARM_ARMADA_37XX_CPUFREQ
 22	tristate "Armada 37xx CPUFreq support"
 23	depends on ARCH_MVEBU && CPUFREQ_DT
 
 24	help
 25	  This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
 26	  The Armada 37xx PMU supports 4 frequency and VDD levels.
 27
 28# big LITTLE core layer and glue drivers
 29config ARM_BIG_LITTLE_CPUFREQ
 30	tristate "Generic ARM big LITTLE CPUfreq driver"
 31	depends on (ARM_CPU_TOPOLOGY || ARM64) && HAVE_CLK
 32	# if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y
 33	depends on !CPU_THERMAL || THERMAL
 34	select PM_OPP
 35	help
 36	  This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
 
 37
 38config ARM_DT_BL_CPUFREQ
 39	tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
 40	depends on ARM_BIG_LITTLE_CPUFREQ && OF
 41	help
 42	  This enables probing via DT for Generic CPUfreq driver for ARM
 43	  big.LITTLE platform. This gets frequency tables from DT.
 44
 45config ARM_SCPI_CPUFREQ
 46	tristate "SCPI based CPUfreq driver"
 47	depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
 48	depends on !CPU_THERMAL || THERMAL
 49	help
 50	  This adds the CPUfreq driver support for ARM platforms using SCPI
 51	  protocol for CPU power management.
 52
 53	  This driver uses SCPI Message Protocol driver to interact with the
 54	  firmware providing the CPU DVFS functionality.
 55
 56config ARM_VEXPRESS_SPC_CPUFREQ
 57	tristate "Versatile Express SPC based CPUfreq driver"
 58	depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
 
 
 59	help
 60	  This add the CPUfreq driver support for Versatile Express
 61	  big.LITTLE platforms using SPC for power management.
 62
 63config ARM_BRCMSTB_AVS_CPUFREQ
 64	tristate "Broadcom STB AVS CPUfreq driver"
 65	depends on ARCH_BRCMSTB || COMPILE_TEST
 66	default y
 67	help
 68	  Some Broadcom STB SoCs use a co-processor running proprietary firmware
 69	  ("AVS") to handle voltage and frequency scaling. This driver provides
 70	  a standard CPUfreq interface to to the firmware.
 71
 72	  Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
 73
 74config ARM_EXYNOS5440_CPUFREQ
 75	tristate "SAMSUNG EXYNOS5440"
 76	depends on SOC_EXYNOS5440
 77	depends on HAVE_CLK && OF
 78	select PM_OPP
 79	default y
 80	help
 81	  This adds the CPUFreq driver for Samsung EXYNOS5440
 82	  SoC. The nature of exynos5440 clock controller is
 83	  different than previous exynos controllers so not using
 84	  the common exynos framework.
 85
 86	  If in doubt, say N.
 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_KIRKWOOD_CPUFREQ
109	def_bool MACH_KIRKWOOD
110	help
111	  This adds the CPUFreq driver for Marvell Kirkwood
112	  SoCs.
113
114config ARM_MEDIATEK_CPUFREQ
115	tristate "CPU Frequency scaling support for MediaTek SoCs"
116	depends on ARCH_MEDIATEK && REGULATOR
117	depends on !CPU_THERMAL || THERMAL
118	select PM_OPP
119	help
120	  This adds the CPUFreq driver support for MediaTek SoCs.
121
 
 
 
 
 
 
 
 
 
 
 
 
122config ARM_OMAP2PLUS_CPUFREQ
123	bool "TI OMAP2+"
124	depends on ARCH_OMAP2PLUS
125	default ARCH_OMAP2PLUS
126
127config ARM_S3C_CPUFREQ
128	bool
129	help
130	  Internal configuration node for common cpufreq on Samsung SoC
131
132config ARM_S3C24XX_CPUFREQ
133	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
134	depends on ARCH_S3C24XX
135	select ARM_S3C_CPUFREQ
136	help
137	  This enables the CPUfreq driver for the Samsung S3C24XX family
138	  of CPUs.
139
140	  For details, take a look at <file:Documentation/cpu-freq>.
141
142	  If in doubt, say N.
143
144config ARM_S3C24XX_CPUFREQ_DEBUG
145	bool "Debug CPUfreq Samsung driver core"
146	depends on ARM_S3C24XX_CPUFREQ
147	help
148	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
149
150config ARM_S3C24XX_CPUFREQ_IODEBUG
151	bool "Debug CPUfreq Samsung driver IO timing"
152	depends on ARM_S3C24XX_CPUFREQ
153	help
154	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
155
156config ARM_S3C24XX_CPUFREQ_DEBUGFS
157	bool "Export debugfs for CPUFreq"
158	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
159	help
160	  Export status information via debugfs.
161
162config ARM_S3C2410_CPUFREQ
163	bool
164	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
165	select S3C2410_CPUFREQ_UTILS
166	help
167	  CPU Frequency scaling support for S3C2410
168
169config ARM_S3C2412_CPUFREQ
170	bool
171	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
172	default y
173	select S3C2412_IOTIMING
174	help
175	  CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
176
177config ARM_S3C2416_CPUFREQ
178	bool "S3C2416 CPU Frequency scaling support"
179	depends on CPU_S3C2416
180	help
181	  This adds the CPUFreq driver for the Samsung S3C2416 and
182	  S3C2450 SoC. The S3C2416 supports changing the rate of the
183	  armdiv clock source and also entering a so called dynamic
184	  voltage scaling mode in which it is possible to reduce the
185	  core voltage of the CPU.
186
187	  If in doubt, say N.
188
189config ARM_S3C2416_CPUFREQ_VCORESCALE
190	bool "Allow voltage scaling for S3C2416 arm core"
191	depends on ARM_S3C2416_CPUFREQ && REGULATOR
192	help
193	  Enable CPU voltage scaling when entering the dvs mode.
194	  It uses information gathered through existing hardware and
195	  tests but not documented in any datasheet.
196
197	  If in doubt, say N.
198
199config ARM_S3C2440_CPUFREQ
200	bool "S3C2440/S3C2442 CPU Frequency scaling support"
201	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
202	select S3C2410_CPUFREQ_UTILS
203	default y
204	help
205	  CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
206
207config ARM_S3C64XX_CPUFREQ
208	bool "Samsung S3C64XX"
209	depends on CPU_S3C6410
210	default y
211	help
212	  This adds the CPUFreq driver for Samsung S3C6410 SoC.
213
214	  If in doubt, say N.
215
216config ARM_S5PV210_CPUFREQ
217	bool "Samsung S5PV210 and S5PC110"
218	depends on CPU_S5PV210
219	default y
220	help
221	  This adds the CPUFreq driver for Samsung S5PV210 and
222	  S5PC110 SoCs.
223
224	  If in doubt, say N.
225
226config ARM_SA1100_CPUFREQ
227	bool
228
229config ARM_SA1110_CPUFREQ
230	bool
231
232config ARM_SCMI_CPUFREQ
233	tristate "SCMI based CPUfreq driver"
234	depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
235	depends on !CPU_THERMAL || THERMAL
236	select PM_OPP
237	help
238	  This adds the CPUfreq driver support for ARM platforms using SCMI
239	  protocol for CPU power management.
240
241	  This driver uses SCMI Message Protocol driver to interact with the
242	  firmware providing the CPU DVFS functionality.
243
244config ARM_SPEAR_CPUFREQ
245	bool "SPEAr CPUFreq support"
246	depends on PLAT_SPEAR
247	default y
248	help
249	  This adds the CPUFreq driver support for SPEAr SOCs.
250
251config ARM_STI_CPUFREQ
252	tristate "STi CPUFreq support"
253	depends on SOC_STIH407
 
254	help
255	  This driver uses the generic OPP framework to match the running
256	  platform with a predefined set of suitable values.  If not provided
257	  we will fall-back so safe-values contained in Device Tree.  Enable
258	  this config option if you wish to add CPUFreq support for STi based
259	  SoCs.
260
261config ARM_TANGO_CPUFREQ
262	bool
263	depends on CPUFREQ_DT && ARCH_TANGO
264	default y
265
266config ARM_TEGRA20_CPUFREQ
267	bool "Tegra20 CPUFreq support"
268	depends on ARCH_TEGRA
 
269	default y
270	help
271	  This adds the CPUFreq driver support for Tegra20 SOCs.
272
273config ARM_TEGRA124_CPUFREQ
274	tristate "Tegra124 CPUFreq support"
275	depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
 
276	default y
277	help
278	  This adds the CPUFreq driver support for Tegra124 SOCs.
279
280config ARM_TEGRA186_CPUFREQ
281	tristate "Tegra186 CPUFreq support"
282	depends on ARCH_TEGRA && TEGRA_BPMP
 
283	help
284	  This adds the CPUFreq driver support for Tegra186 SOCs.
285
 
 
 
 
 
 
 
 
286config ARM_TI_CPUFREQ
287	bool "Texas Instruments CPUFreq support"
288	depends on ARCH_OMAP2PLUS
 
289	help
290	  This driver enables valid OPPs on the running platform based on
291	  values contained within the SoC in use. Enable this in order to
292	  use the cpufreq-dt driver on all Texas Instruments platforms that
293	  provide dt based operating-points-v2 tables with opp-supported-hw
294	  data provided. Required for cpufreq support on AM335x, AM437x,
295	  DRA7x, and AM57x platforms.
296
297config ARM_PXA2xx_CPUFREQ
298	tristate "Intel PXA2xx CPUfreq driver"
299	depends on PXA27x || PXA25x
300	help
301	  This add the CPUFreq driver support for Intel PXA2xx SOCs.
302
303	  If in doubt, say N.