[linux-block.git] / drivers / cpufreq / Kconfig.arm

# SPDX-License-Identifier: GPL-2.0-only
#
# ARM CPU Frequency scaling drivers
#

config ACPI_CPPC_CPUFREQ
	tristate "CPUFreq driver based on the ACPI CPPC spec"
	depends on ACPI_PROCESSOR
	select ACPI_CPPC_LIB
	help
	  This adds a CPUFreq driver which uses CPPC methods
	  as described in the ACPIv5.1 spec. CPPC stands for
	  Collaborative Processor Performance Controls. It
	  is based on an abstract continuous scale of CPU
	  performance values which allows the remote power
	  processor to flexibly optimize for power and
	  performance. CPPC relies on power management firmware
	  support for its operation.

	  If in doubt, say N.

config ACPI_CPPC_CPUFREQ_FIE
	bool "Frequency Invariance support for CPPC cpufreq driver"
	depends on ACPI_CPPC_CPUFREQ && GENERIC_ARCH_TOPOLOGY
	default y
	help
	  This extends frequency invariance support in the CPPC cpufreq driver,
	  by using CPPC delivered and reference performance counters.

	  If in doubt, say N.

config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
	tristate "Allwinner nvmem based SUN50I CPUFreq driver"
	depends on ARCH_SUNXI
	depends on NVMEM_SUNXI_SID
	select PM_OPP
	help
	  This adds the nvmem based CPUFreq driver for Allwinner
	  h6 SoC.

	  To compile this driver as a module, choose M here: the
	  module will be called sun50i-cpufreq-nvmem.

config ARM_ARMADA_37XX_CPUFREQ
	tristate "Armada 37xx CPUFreq support"
	depends on ARCH_MVEBU && CPUFREQ_DT
	help
	  This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
	  The Armada 37xx PMU supports 4 frequency and VDD levels.

config ARM_ARMADA_8K_CPUFREQ
	tristate "Armada 8K CPUFreq driver"
	depends on ARCH_MVEBU && CPUFREQ_DT
	select ARMADA_AP_CPU_CLK
	help
	  This enables the CPUFreq driver support for Marvell
	  Armada8k SOCs.
	  Armada8K device has the AP806 which supports scaling
	  to any full integer divider.

	  If in doubt, say N.

config ARM_SCPI_CPUFREQ
	tristate "SCPI based CPUfreq driver"
	depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
	help
	  This adds the CPUfreq driver support for ARM platforms using SCPI
	  protocol for CPU power management.

	  This driver uses SCPI Message Protocol driver to interact with the
	  firmware providing the CPU DVFS functionality.

config ARM_VEXPRESS_SPC_CPUFREQ
	tristate "Versatile Express SPC based CPUfreq driver"
	depends on ARM_CPU_TOPOLOGY && HAVE_CLK
	depends on ARCH_VEXPRESS_SPC
	select PM_OPP
	help
	  This add the CPUfreq driver support for Versatile Express
	  big.LITTLE platforms using SPC for power management.

config ARM_BRCMSTB_AVS_CPUFREQ
	tristate "Broadcom STB AVS CPUfreq driver"
	depends on ARCH_BRCMSTB || COMPILE_TEST
	default y
	help
	  Some Broadcom STB SoCs use a co-processor running proprietary firmware
	  ("AVS") to handle voltage and frequency scaling. This driver provides
	  a standard CPUfreq interface to to the firmware.

	  Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.

config ARM_HIGHBANK_CPUFREQ
	tristate "Calxeda Highbank-based"
	depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
	default m
	help
	  This adds the CPUFreq driver for Calxeda Highbank SoC
	  based boards.

	  If in doubt, say N.

config ARM_IMX6Q_CPUFREQ
	tristate "Freescale i.MX6 cpufreq support"
	depends on ARCH_MXC
	depends on REGULATOR_ANATOP
	depends on NVMEM_IMX_OCOTP || COMPILE_TEST
	select PM_OPP
	help
	  This adds cpufreq driver support for Freescale i.MX6 series SoCs.

	  If in doubt, say N.

config ARM_IMX_CPUFREQ_DT
	tristate "Freescale i.MX8M cpufreq support"
	depends on ARCH_MXC && CPUFREQ_DT
	help
	  This adds cpufreq driver support for Freescale i.MX8M series SoCs,
	  based on cpufreq-dt.

	  If in doubt, say N.

config ARM_KIRKWOOD_CPUFREQ
	def_bool MACH_KIRKWOOD
	help
	  This adds the CPUFreq driver for Marvell Kirkwood
	  SoCs.

config ARM_MEDIATEK_CPUFREQ
	tristate "CPU Frequency scaling support for MediaTek SoCs"
	depends on ARCH_MEDIATEK && REGULATOR
	select PM_OPP
	help
	  This adds the CPUFreq driver support for MediaTek SoCs.

config ARM_MEDIATEK_CPUFREQ_HW
	tristate "MediaTek CPUFreq HW driver"
	depends on ARCH_MEDIATEK || COMPILE_TEST
	default m
	help
	  Support for the CPUFreq HW driver.
	  Some MediaTek chipsets have a HW engine to offload the steps
	  necessary for changing the frequency of the CPUs. Firmware loaded
	  in this engine exposes a programming interface to the OS.
	  The driver implements the cpufreq interface for this HW engine.
	  Say Y if you want to support CPUFreq HW.

config ARM_OMAP2PLUS_CPUFREQ
	bool "TI OMAP2+"
	depends on ARCH_OMAP2PLUS
	default ARCH_OMAP2PLUS

config ARM_QCOM_CPUFREQ_NVMEM
	tristate "Qualcomm nvmem based CPUFreq"
	depends on ARCH_QCOM
	depends on QCOM_QFPROM
	depends on QCOM_SMEM
	select PM_OPP
	help
	  This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.

	  If in doubt, say N.

config ARM_QCOM_CPUFREQ_HW
	tristate "QCOM CPUFreq HW driver"
	depends on ARCH_QCOM || COMPILE_TEST
	help
	  Support for the CPUFreq HW driver.
	  Some QCOM chipsets have a HW engine to offload the steps
	  necessary for changing the frequency of the CPUs. Firmware loaded
	  in this engine exposes a programming interface to the OS.
	  The driver implements the cpufreq interface for this HW engine.
	  Say Y if you want to support CPUFreq HW.

config ARM_RASPBERRYPI_CPUFREQ
	tristate "Raspberry Pi cpufreq support"
	depends on CLK_RASPBERRYPI || COMPILE_TEST
	help
	  This adds the CPUFreq driver for Raspberry Pi

	  If in doubt, say N.

config ARM_S3C_CPUFREQ
	bool
	help
	  Internal configuration node for common cpufreq on Samsung SoC

config ARM_S3C24XX_CPUFREQ
	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
	depends on ARCH_S3C24XX
	select ARM_S3C_CPUFREQ
	help
	  This enables the CPUfreq driver for the Samsung S3C24XX family
	  of CPUs.

	  For details, take a look at <file:Documentation/cpu-freq>.

	  If in doubt, say N.

config ARM_S3C24XX_CPUFREQ_DEBUG
	bool "Debug CPUfreq Samsung driver core"
	depends on ARM_S3C24XX_CPUFREQ
	help
	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core

config ARM_S3C24XX_CPUFREQ_IODEBUG
	bool "Debug CPUfreq Samsung driver IO timing"
	depends on ARM_S3C24XX_CPUFREQ
	help
	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core

config ARM_S3C24XX_CPUFREQ_DEBUGFS
	bool "Export debugfs for CPUFreq"
	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
	help
	  Export status information via debugfs.

config ARM_S3C2410_CPUFREQ
	bool
	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
	help
	  CPU Frequency scaling support for S3C2410

config ARM_S3C2412_CPUFREQ
	bool
	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
	default y
	select S3C2412_IOTIMING
	help
	  CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.

config ARM_S3C2416_CPUFREQ
	bool "S3C2416 CPU Frequency scaling support"
	depends on CPU_S3C2416
	help
	  This adds the CPUFreq driver for the Samsung S3C2416 and
	  S3C2450 SoC. The S3C2416 supports changing the rate of the
	  armdiv clock source and also entering a so called dynamic
	  voltage scaling mode in which it is possible to reduce the
	  core voltage of the CPU.

	  If in doubt, say N.

config ARM_S3C2416_CPUFREQ_VCORESCALE
	bool "Allow voltage scaling for S3C2416 arm core"
	depends on ARM_S3C2416_CPUFREQ && REGULATOR
	help
	  Enable CPU voltage scaling when entering the dvs mode.
	  It uses information gathered through existing hardware and
	  tests but not documented in any datasheet.

	  If in doubt, say N.

config ARM_S3C2440_CPUFREQ
	bool "S3C2440/S3C2442 CPU Frequency scaling support"
	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
	default y
	help
	  CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.

config ARM_S3C64XX_CPUFREQ
	bool "Samsung S3C64XX"
	depends on CPU_S3C6410
	default y
	help
	  This adds the CPUFreq driver for Samsung S3C6410 SoC.

	  If in doubt, say N.

config ARM_S5PV210_CPUFREQ
	bool "Samsung S5PV210 and S5PC110"
	depends on CPU_S5PV210
	default y
	help
	  This adds the CPUFreq driver for Samsung S5PV210 and
	  S5PC110 SoCs.

	  If in doubt, say N.

config ARM_SA1100_CPUFREQ
	bool

config ARM_SA1110_CPUFREQ
	bool

config ARM_SCMI_CPUFREQ
	tristate "SCMI based CPUfreq driver"
	depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
	select PM_OPP
	help
	  This adds the CPUfreq driver support for ARM platforms using SCMI
	  protocol for CPU power management.

	  This driver uses SCMI Message Protocol driver to interact with the
	  firmware providing the CPU DVFS functionality.

config ARM_SPEAR_CPUFREQ
	bool "SPEAr CPUFreq support"
	depends on PLAT_SPEAR
	default y
	help
	  This adds the CPUFreq driver support for SPEAr SOCs.

config ARM_STI_CPUFREQ
	tristate "STi CPUFreq support"
	depends on CPUFREQ_DT && SOC_STIH407
	help
	  This driver uses the generic OPP framework to match the running
	  platform with a predefined set of suitable values.  If not provided
	  we will fall-back so safe-values contained in Device Tree.  Enable
	  this config option if you wish to add CPUFreq support for STi based
	  SoCs.

config ARM_TEGRA20_CPUFREQ
	tristate "Tegra20/30 CPUFreq support"
	depends on ARCH_TEGRA && CPUFREQ_DT
	default y
	help
	  This adds the CPUFreq driver support for Tegra20/30 SOCs.

config ARM_TEGRA124_CPUFREQ
	bool "Tegra124 CPUFreq support"
	depends on ARCH_TEGRA && CPUFREQ_DT
	default y
	help
	  This adds the CPUFreq driver support for Tegra124 SOCs.

config ARM_TEGRA186_CPUFREQ
	tristate "Tegra186 CPUFreq support"
	depends on ARCH_TEGRA && TEGRA_BPMP
	help
	  This adds the CPUFreq driver support for Tegra186 SOCs.

config ARM_TEGRA194_CPUFREQ
	tristate "Tegra194 CPUFreq support"
	depends on ARCH_TEGRA_194_SOC && TEGRA_BPMP
	default y
	help
	  This adds CPU frequency driver support for Tegra194 SOCs.

config ARM_TI_CPUFREQ
	bool "Texas Instruments CPUFreq support"
	depends on ARCH_OMAP2PLUS
	default ARCH_OMAP2PLUS
	help
	  This driver enables valid OPPs on the running platform based on
	  values contained within the SoC in use. Enable this in order to
	  use the cpufreq-dt driver on all Texas Instruments platforms that
	  provide dt based operating-points-v2 tables with opp-supported-hw
	  data provided. Required for cpufreq support on AM335x, AM437x,
	  DRA7x, and AM57x platforms.

config ARM_PXA2xx_CPUFREQ
	tristate "Intel PXA2xx CPUfreq driver"
	depends on PXA27x || PXA25x
	help
	  This add the CPUFreq driver support for Intel PXA2xx SOCs.

	  If in doubt, say N.
Commit	Line	Data
ec8f24b7	1	# SPDX-License-Identifier: GPL-2.0-only
f7d77079 KK	2	#
	3	# ARM CPU Frequency scaling drivers
	4	#
	5
b17d2f8d GC	6	config 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
4c38f2df VK	22	config ACPI_CPPC_CPUFREQ_FIE
	23	bool "Frequency Invariance support for CPPC cpufreq driver"
	24	depends on ACPI_CPPC_CPUFREQ && GENERIC_ARCH_TOPOLOGY
	25	default y
	26	help
	27	This extends frequency invariance support in the CPPC cpufreq driver,
	28	by using CPPC delivered and reference performance counters.
	29
	30	If in doubt, say N.
	31
f328584f YL	32	config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
	33	tristate "Allwinner nvmem based SUN50I CPUFreq driver"
	34	depends on ARCH_SUNXI
	35	depends on NVMEM_SUNXI_SID
	36	select PM_OPP
	37	help
	38	This adds the nvmem based CPUFreq driver for Allwinner
	39	h6 SoC.
	40
	41	To compile this driver as a module, choose M here: the
	42	module will be called sun50i-cpufreq-nvmem.
	43
92ce45fb GC	44	config ARM_ARMADA_37XX_CPUFREQ
92ce45fb GC	45	tristate "Armada 37xx CPUFreq support"
0cf442c6	46	depends on ARCH_MVEBU && CPUFREQ_DT
92ce45fb GC	47	help
	48	This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
	49	The Armada 37xx PMU supports 4 frequency and VDD levels.
	50
f525a670 GC	51	config ARM_ARMADA_8K_CPUFREQ
	52	tristate "Armada 8K CPUFreq driver"
	53	depends on ARCH_MVEBU && CPUFREQ_DT
8c37ad2f	54	select ARMADA_AP_CPU_CLK
f525a670 GC	55	help
	56	This enables the CPUFreq driver support for Marvell
	57	Armada8k SOCs.
	58	Armada8K device has the AP806 which supports scaling
	59	to any full integer divider.
	60
	61	If in doubt, say N.
	62
b17d2f8d GC	63	config ARM_SCPI_CPUFREQ
b17d2f8d GC	64	tristate "SCPI based CPUfreq driver"
5c8b2623	65	depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
b17d2f8d	66	help
5c8b2623 SH	67	This adds the CPUfreq driver support for ARM platforms using SCPI
5c8b2623 SH	68	protocol for CPU power management.
b17d2f8d GC	69
	70	This driver uses SCPI Message Protocol driver to interact with the
	71	firmware providing the CPU DVFS functionality.
	72
	73	config ARM_VEXPRESS_SPC_CPUFREQ
	74	tristate "Versatile Express SPC based CPUfreq driver"
a0f950d3 SH	75	depends on ARM_CPU_TOPOLOGY && HAVE_CLK
	76	depends on ARCH_VEXPRESS_SPC
	77	select PM_OPP
b17d2f8d GC	78	help
	79	This add the CPUfreq driver support for Versatile Express
	80	big.LITTLE platforms using SPC for power management.
	81
de322e08 MM	82	config ARM_BRCMSTB_AVS_CPUFREQ
	83	tristate "Broadcom STB AVS CPUfreq driver"
	84	depends on ARCH_BRCMSTB \|\| COMPILE_TEST
	85	default y
	86	help
	87	Some Broadcom STB SoCs use a co-processor running proprietary firmware
	88	("AVS") to handle voltage and frequency scaling. This driver provides
	89	a standard CPUfreq interface to to the firmware.
	90
	91	Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
	92
a0ea048a VK	93	config ARM_HIGHBANK_CPUFREQ
a0ea048a VK	94	tristate "Calxeda Highbank-based"
bbcf0719	95	depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
a0ea048a VK	96	default m
	97	help
	98	This adds the CPUFreq driver for Calxeda Highbank SoC
	99	based boards.
	100
	101	If in doubt, say N.
	102
	103	config ARM_IMX6Q_CPUFREQ
1d0eaae9 SG	104	tristate "Freescale i.MX6 cpufreq support"
1d0eaae9 SG	105	depends on ARCH_MXC
a0ea048a	106	depends on REGULATOR_ANATOP
fc928b90	107	depends on NVMEM_IMX_OCOTP \|\| COMPILE_TEST
7e021687	108	select PM_OPP
a0ea048a	109	help
1d0eaae9	110	This adds cpufreq driver support for Freescale i.MX6 series SoCs.
a0ea048a VK	111
	112	If in doubt, say N.
	113
4d28ba1d LC	114	config ARM_IMX_CPUFREQ_DT
	115	tristate "Freescale i.MX8M cpufreq support"
	116	depends on ARCH_MXC && CPUFREQ_DT
	117	help
	118	This adds cpufreq driver support for Freescale i.MX8M series SoCs,
	119	based on cpufreq-dt.
	120
	121	If in doubt, say N.
	122
a0ea048a	123	config ARM_KIRKWOOD_CPUFREQ
6c8df11d	124	def_bool MACH_KIRKWOOD
a0ea048a VK	125	help
	126	This adds the CPUFreq driver for Marvell Kirkwood
	127	SoCs.
	128
501c574f SW	129	config ARM_MEDIATEK_CPUFREQ
501c574f SW	130	tristate "CPU Frequency scaling support for MediaTek SoCs"
1453863f PCC	131	depends on ARCH_MEDIATEK && REGULATOR
	132	select PM_OPP
	133	help
501c574f	134	This adds the CPUFreq driver support for MediaTek SoCs.
1453863f	135
4855e26b HY	136	config ARM_MEDIATEK_CPUFREQ_HW
	137	tristate "MediaTek CPUFreq HW driver"
	138	depends on ARCH_MEDIATEK \|\| COMPILE_TEST
	139	default m
	140	help
	141	Support for the CPUFreq HW driver.
	142	Some MediaTek chipsets have a HW engine to offload the steps
	143	necessary for changing the frequency of the CPUs. Firmware loaded
	144	in this engine exposes a programming interface to the OS.
	145	The driver implements the cpufreq interface for this HW engine.
	146	Say Y if you want to support CPUFreq HW.
	147
b09db45c RK	148	config ARM_OMAP2PLUS_CPUFREQ
b09db45c RK	149	bool "TI OMAP2+"
2d59dcfb	150	depends on ARCH_OMAP2PLUS
b09db45c	151	default ARCH_OMAP2PLUS
b09db45c	152
7d127095 S	153	config ARM_QCOM_CPUFREQ_NVMEM
7d127095 S	154	tristate "Qualcomm nvmem based CPUFreq"
a8811ec7	155	depends on ARCH_QCOM
46e2856b IL	156	depends on QCOM_QFPROM
	157	depends on QCOM_SMEM
	158	select PM_OPP
	159	help
	160	This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
	161
	162	If in doubt, say N.
	163
2849dd8b TD	164	config ARM_QCOM_CPUFREQ_HW
	165	tristate "QCOM CPUFreq HW driver"
	166	depends on ARCH_QCOM \|\| COMPILE_TEST
	167	help
	168	Support for the CPUFreq HW driver.
	169	Some QCOM chipsets have a HW engine to offload the steps
	170	necessary for changing the frequency of the CPUs. Firmware loaded
	171	in this engine exposes a programming interface to the OS.
	172	The driver implements the cpufreq interface for this HW engine.
	173	Say Y if you want to support CPUFreq HW.
	174
d3df18a9 NSJ	175	config ARM_RASPBERRYPI_CPUFREQ
	176	tristate "Raspberry Pi cpufreq support"
	177	depends on CLK_RASPBERRYPI \|\| COMPILE_TEST
	178	help
	179	This adds the CPUFreq driver for Raspberry Pi
	180
	181	If in doubt, say N.
	182
f023f8dd VK	183	config ARM_S3C_CPUFREQ
	184	bool
	185	help
	186	Internal configuration node for common cpufreq on Samsung SoC
	187
	188	config ARM_S3C24XX_CPUFREQ
	189	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
	190	depends on ARCH_S3C24XX
	191	select ARM_S3C_CPUFREQ
	192	help
	193	This enables the CPUfreq driver for the Samsung S3C24XX family
	194	of CPUs.
	195
	196	For details, take a look at <file:Documentation/cpu-freq>.
	197
	198	If in doubt, say N.
	199
	200	config ARM_S3C24XX_CPUFREQ_DEBUG
	201	bool "Debug CPUfreq Samsung driver core"
	202	depends on ARM_S3C24XX_CPUFREQ
	203	help
	204	Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
	205
	206	config ARM_S3C24XX_CPUFREQ_IODEBUG
	207	bool "Debug CPUfreq Samsung driver IO timing"
	208	depends on ARM_S3C24XX_CPUFREQ
	209	help
	210	Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
	211
	212	config ARM_S3C24XX_CPUFREQ_DEBUGFS
	213	bool "Export debugfs for CPUFreq"
	214	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
	215	help
	216	Export status information via debugfs.
	217
	218	config ARM_S3C2410_CPUFREQ
	219	bool
	220	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
f023f8dd VK	221	help
	222	CPU Frequency scaling support for S3C2410
	223
	224	config ARM_S3C2412_CPUFREQ
	225	bool
	226	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
	227	default y
	228	select S3C2412_IOTIMING
	229	help
	230	CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
	231
34ee5507 HS	232	config ARM_S3C2416_CPUFREQ
	233	bool "S3C2416 CPU Frequency scaling support"
	234	depends on CPU_S3C2416
	235	help
	236	This adds the CPUFreq driver for the Samsung S3C2416 and
	237	S3C2450 SoC. The S3C2416 supports changing the rate of the
	238	armdiv clock source and also entering a so called dynamic
	239	voltage scaling mode in which it is possible to reduce the
735dc249	240	core voltage of the CPU.
34ee5507 HS	241
	242	If in doubt, say N.
	243
	244	config ARM_S3C2416_CPUFREQ_VCORESCALE
0f194b56 KC	245	bool "Allow voltage scaling for S3C2416 arm core"
0f194b56 KC	246	depends on ARM_S3C2416_CPUFREQ && REGULATOR
34ee5507 HS	247	help
	248	Enable CPU voltage scaling when entering the dvs mode.
	249	It uses information gathered through existing hardware and
	250	tests but not documented in any datasheet.
	251
	252	If in doubt, say N.
	253
f023f8dd VK	254	config ARM_S3C2440_CPUFREQ
	255	bool "S3C2440/S3C2442 CPU Frequency scaling support"
	256	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 \|\| CPU_S3C2442)
f023f8dd VK	257	default y
	258	help
	259	CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
	260
15964d38 KK	261	config ARM_S3C64XX_CPUFREQ
	262	bool "Samsung S3C64XX"
	263	depends on CPU_S3C6410
	264	default y
	265	help
	266	This adds the CPUFreq driver for Samsung S3C6410 SoC.
	267
	268	If in doubt, say N.
	269
f7d77079 KK	270	config ARM_S5PV210_CPUFREQ
	271	bool "Samsung S5PV210 and S5PC110"
	272	depends on CPU_S5PV210
	273	default y
	274	help
	275	This adds the CPUFreq driver for Samsung S5PV210 and
	276	S5PC110 SoCs.
	277
	278	If in doubt, say N.
	279
59a2e613 VK	280	config ARM_SA1100_CPUFREQ
	281	bool
	282
	283	config ARM_SA1110_CPUFREQ
	284	bool
	285
99d6bdf3 SH	286	config ARM_SCMI_CPUFREQ
	287	tristate "SCMI based CPUfreq driver"
	288	depends on ARM_SCMI_PROTOCOL \|\| COMPILE_TEST
	289	select PM_OPP
	290	help
	291	This adds the CPUfreq driver support for ARM platforms using SCMI
	292	protocol for CPU power management.
	293
	294	This driver uses SCMI Message Protocol driver to interact with the
	295	firmware providing the CPU DVFS functionality.
	296
42099322 DS	297	config ARM_SPEAR_CPUFREQ
	298	bool "SPEAr CPUFreq support"
	299	depends on PLAT_SPEAR
	300	default y
	301	help
	302	This adds the CPUFreq driver support for SPEAr SOCs.
dbb8d76e	303
ab0ea257 LJ	304	config ARM_STI_CPUFREQ
ab0ea257 LJ	305	tristate "STi CPUFreq support"
a0d698d8	306	depends on CPUFREQ_DT && SOC_STIH407
ab0ea257 LJ	307	help
	308	This driver uses the generic OPP framework to match the running
	309	platform with a predefined set of suitable values. If not provided
	310	we will fall-back so safe-values contained in Device Tree. Enable
	311	this config option if you wish to add CPUFreq support for STi based
	312	SoCs.
	313
109e13ea	314	config ARM_TEGRA20_CPUFREQ
9ce27463 DO	315	tristate "Tegra20/30 CPUFreq support"
9ce27463 DO	316	depends on ARCH_TEGRA && CPUFREQ_DT
dbb8d76e VK	317	default y
dbb8d76e VK	318	help
9ce27463	319	This adds the CPUFreq driver support for Tegra20/30 SOCs.
608eab22	320
9eb15dbb	321	config ARM_TEGRA124_CPUFREQ
9f5ed5fe JL	322	bool "Tegra124 CPUFreq support"
9f5ed5fe JL	323	depends on ARCH_TEGRA && CPUFREQ_DT
9eb15dbb TT	324	default y
	325	help
	326	This adds the CPUFreq driver support for Tegra124 SOCs.
	327
939dc6f5 MP	328	config ARM_TEGRA186_CPUFREQ
	329	tristate "Tegra186 CPUFreq support"
	330	depends on ARCH_TEGRA && TEGRA_BPMP
	331	help
	332	This adds the CPUFreq driver support for Tegra186 SOCs.
	333
df320f89 SG	334	config ARM_TEGRA194_CPUFREQ
	335	tristate "Tegra194 CPUFreq support"
	336	depends on ARCH_TEGRA_194_SOC && TEGRA_BPMP
	337	default y
	338	help
	339	This adds CPU frequency driver support for Tegra194 SOCs.
	340
e13cf046 DG	341	config ARM_TI_CPUFREQ
	342	bool "Texas Instruments CPUFreq support"
	343	depends on ARCH_OMAP2PLUS
59b55c1f	344	default ARCH_OMAP2PLUS
e13cf046 DG	345	help
	346	This driver enables valid OPPs on the running platform based on
	347	values contained within the SoC in use. Enable this in order to
	348	use the cpufreq-dt driver on all Texas Instruments platforms that
	349	provide dt based operating-points-v2 tables with opp-supported-hw
	350	data provided. Required for cpufreq support on AM335x, AM437x,
	351	DRA7x, and AM57x platforms.
	352
608eab22 PC	353	config ARM_PXA2xx_CPUFREQ
	354	tristate "Intel PXA2xx CPUfreq driver"
	355	depends on PXA27x \|\| PXA25x
	356	help
	357	This add the CPUFreq driver support for Intel PXA2xx SOCs.
	358
	359	If in doubt, say N.