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
  5# big LITTLE core layer and glue drivers
  6config ARM_BIG_LITTLE_CPUFREQ
  7	tristate "Generic ARM big LITTLE CPUfreq driver"
  8	depends on (ARM_CPU_TOPOLOGY || ARM64) && HAVE_CLK
  9	# if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y
 10	depends on !CPU_THERMAL || THERMAL
 11	select PM_OPP
 12	help
 13	  This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
 
 14
 15config ARM_DT_BL_CPUFREQ
 16	tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
 17	depends on ARM_BIG_LITTLE_CPUFREQ && OF
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 18	help
 19	  This enables probing via DT for Generic CPUfreq driver for ARM
 20	  big.LITTLE platform. This gets frequency tables from DT.
 
 
 
 21
 22config ARM_VEXPRESS_SPC_CPUFREQ
 23        tristate "Versatile Express SPC based CPUfreq driver"
 24	depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
 25        help
 26          This add the CPUfreq driver support for Versatile Express
 
 
 27	  big.LITTLE platforms using SPC for power management.
 28
 29config ARM_EXYNOS5440_CPUFREQ
 30	tristate "SAMSUNG EXYNOS5440"
 31	depends on SOC_EXYNOS5440
 32	depends on HAVE_CLK && OF
 33	select PM_OPP
 34	default y
 35	help
 36	  This adds the CPUFreq driver for Samsung EXYNOS5440
 37	  SoC. The nature of exynos5440 clock controller is
 38	  different than previous exynos controllers so not using
 39	  the common exynos framework.
 40
 41	  If in doubt, say N.
 42
 43config ARM_HIGHBANK_CPUFREQ
 44	tristate "Calxeda Highbank-based"
 45	depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
 
 46	default m
 47	help
 48	  This adds the CPUFreq driver for Calxeda Highbank SoC
 49	  based boards.
 50
 51	  If in doubt, say N.
 52
 53config ARM_HISI_ACPU_CPUFREQ
 54	tristate "Hisilicon ACPU CPUfreq driver"
 55	depends on ARCH_HISI && CPUFREQ_DT
 56	select PM_OPP
 57	help
 58	  This enables the hisilicon ACPU CPUfreq driver.
 59
 60	  If in doubt, say N.
 61
 62config ARM_IMX6Q_CPUFREQ
 63	tristate "Freescale i.MX6 cpufreq support"
 64	depends on ARCH_MXC
 65	depends on REGULATOR_ANATOP
 
 66	select PM_OPP
 67	help
 68	  This adds cpufreq driver support for Freescale i.MX6 series SoCs.
 69
 70	  If in doubt, say N.
 71
 72config ARM_INTEGRATOR
 73	tristate "CPUfreq driver for ARM Integrator CPUs"
 74	depends on ARCH_INTEGRATOR
 75	default y
 76	help
 77	  This enables the CPUfreq driver for ARM Integrator CPUs.
 78	  If in doubt, say Y.
 
 
 79
 80config ARM_KIRKWOOD_CPUFREQ
 81	def_bool MACH_KIRKWOOD
 82	help
 83	  This adds the CPUFreq driver for Marvell Kirkwood
 84	  SoCs.
 85
 86config ARM_MT8173_CPUFREQ
 87	tristate "Mediatek MT8173 CPUFreq support"
 88	depends on ARCH_MEDIATEK && REGULATOR
 89	depends on ARM64 || (ARM_CPU_TOPOLOGY && COMPILE_TEST)
 90	depends on !CPU_THERMAL || THERMAL
 91	select PM_OPP
 92	help
 93	  This adds the CPUFreq driver support for Mediatek MT8173 SoC.
 
 
 
 
 
 
 
 
 
 
 
 
 94
 95config ARM_OMAP2PLUS_CPUFREQ
 96	bool "TI OMAP2+"
 97	depends on ARCH_OMAP2PLUS
 98	default ARCH_OMAP2PLUS
 99
100config ARM_S3C_CPUFREQ
101	bool
 
 
 
 
102	help
103	  Internal configuration node for common cpufreq on Samsung SoC
104
105config ARM_S3C24XX_CPUFREQ
106	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
107	depends on ARCH_S3C24XX
108	select ARM_S3C_CPUFREQ
109	help
110	  This enables the CPUfreq driver for the Samsung S3C24XX family
111	  of CPUs.
112
113	  For details, take a look at <file:Documentation/cpu-freq>.
114
115	  If in doubt, say N.
116
117config ARM_S3C24XX_CPUFREQ_DEBUG
118	bool "Debug CPUfreq Samsung driver core"
119	depends on ARM_S3C24XX_CPUFREQ
120	help
121	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
122
123config ARM_S3C24XX_CPUFREQ_IODEBUG
124	bool "Debug CPUfreq Samsung driver IO timing"
125	depends on ARM_S3C24XX_CPUFREQ
126	help
127	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
128
129config ARM_S3C24XX_CPUFREQ_DEBUGFS
130	bool "Export debugfs for CPUFreq"
131	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
132	help
133	  Export status information via debugfs.
134
135config ARM_S3C2410_CPUFREQ
136	bool
137	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
138	select S3C2410_CPUFREQ_UTILS
139	help
140	  CPU Frequency scaling support for S3C2410
141
142config ARM_S3C2412_CPUFREQ
143	bool
144	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
145	default y
146	select S3C2412_IOTIMING
147	help
148	  CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
149
150config ARM_S3C2416_CPUFREQ
151	bool "S3C2416 CPU Frequency scaling support"
152	depends on CPU_S3C2416
153	help
154	  This adds the CPUFreq driver for the Samsung S3C2416 and
155	  S3C2450 SoC. The S3C2416 supports changing the rate of the
156	  armdiv clock source and also entering a so called dynamic
157	  voltage scaling mode in which it is possible to reduce the
158	  core voltage of the CPU.
159
160	  If in doubt, say N.
161
162config ARM_S3C2416_CPUFREQ_VCORESCALE
163	bool "Allow voltage scaling for S3C2416 arm core"
164	depends on ARM_S3C2416_CPUFREQ && REGULATOR
165	help
166	  Enable CPU voltage scaling when entering the dvs mode.
167	  It uses information gathered through existing hardware and
168	  tests but not documented in any datasheet.
169
170	  If in doubt, say N.
171
172config ARM_S3C2440_CPUFREQ
173	bool "S3C2440/S3C2442 CPU Frequency scaling support"
174	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
175	select S3C2410_CPUFREQ_UTILS
176	default y
177	help
178	  CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
179
180config ARM_S3C64XX_CPUFREQ
181	bool "Samsung S3C64XX"
182	depends on CPU_S3C6410
183	default y
184	help
185	  This adds the CPUFreq driver for Samsung S3C6410 SoC.
186
187	  If in doubt, say N.
188
189config ARM_S5PV210_CPUFREQ
190	bool "Samsung S5PV210 and S5PC110"
191	depends on CPU_S5PV210
192	default y
193	help
194	  This adds the CPUFreq driver for Samsung S5PV210 and
195	  S5PC110 SoCs.
196
197	  If in doubt, say N.
198
199config ARM_SA1100_CPUFREQ
200	bool
201
202config ARM_SA1110_CPUFREQ
203	bool
204
205config ARM_SCPI_CPUFREQ
206        tristate "SCPI based CPUfreq driver"
207	depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
208        help
209	  This adds the CPUfreq driver support for ARM big.LITTLE platforms
210	  using SCPI protocol for CPU power management.
 
211
212	  This driver uses SCPI Message Protocol driver to interact with the
213	  firmware providing the CPU DVFS functionality.
214
215config ARM_SPEAR_CPUFREQ
216	bool "SPEAr CPUFreq support"
217	depends on PLAT_SPEAR
218	default y
219	help
220	  This adds the CPUFreq driver support for SPEAr SOCs.
221
222config ARM_STI_CPUFREQ
223	tristate "STi CPUFreq support"
224	depends on SOC_STIH407
 
225	help
226	  This driver uses the generic OPP framework to match the running
227	  platform with a predefined set of suitable values.  If not provided
228	  we will fall-back so safe-values contained in Device Tree.  Enable
229	  this config option if you wish to add CPUFreq support for STi based
230	  SoCs.
231
232config ARM_TEGRA20_CPUFREQ
233	bool "Tegra20 CPUFreq support"
234	depends on ARCH_TEGRA
 
235	default y
236	help
237	  This adds the CPUFreq driver support for Tegra20 SOCs.
238
239config ARM_TEGRA124_CPUFREQ
240	tristate "Tegra124 CPUFreq support"
241	depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
 
242	default y
243	help
244	  This adds the CPUFreq driver support for Tegra124 SOCs.
245
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
246config ARM_PXA2xx_CPUFREQ
247	tristate "Intel PXA2xx CPUfreq driver"
248	depends on PXA27x || PXA25x
249	help
250	  This add the CPUFreq driver support for Intel PXA2xx SOCs.
251
252	  If in doubt, say N.
253
254config ACPI_CPPC_CPUFREQ
255	tristate "CPUFreq driver based on the ACPI CPPC spec"
256	depends on ACPI
257	select ACPI_CPPC_LIB
258	default n
259	help
260	  This adds a CPUFreq driver which uses CPPC methods
261	  as described in the ACPIv5.1 spec. CPPC stands for
262	  Collaborative Processor Performance Controls. It
263	  is based on an abstract continuous scale of CPU
264	  performance values which allows the remote power
265	  processor to flexibly optimize for power and
266	  performance. CPPC relies on power management firmware
267	  support for its operation.
268
269	  If in doubt, say N.