[mirror_ubuntu-bionic-kernel.git] / drivers / cpufreq / Kconfig.arm

#
# ARM CPU Frequency scaling drivers
#

# big LITTLE core layer and glue drivers
config ARM_BIG_LITTLE_CPUFREQ
	tristate "Generic ARM big LITTLE CPUfreq driver"
	depends on (ARM_CPU_TOPOLOGY || ARM64) && HAVE_CLK
	# if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y
	depends on !CPU_THERMAL || THERMAL
	select PM_OPP
	help
	  This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.

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_BRCMSTB_AVS_CPUFREQ_DEBUG
	bool "Broadcom STB AVS CPUfreq driver sysfs debug capability"
	depends on ARM_BRCMSTB_AVS_CPUFREQ
	help
	  Enabling this option turns on debug support via sysfs under
	  /sys/kernel/debug/brcmstb-avs-cpufreq. It is possible to read all and
	  write some AVS mailbox registers through sysfs entries.

	  If in doubt, say N.

config ARM_DT_BL_CPUFREQ
	tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
	depends on ARM_BIG_LITTLE_CPUFREQ && OF
	help
	  This enables probing via DT for Generic CPUfreq driver for ARM
	  big.LITTLE platform. This gets frequency tables from DT.

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

config ARM_EXYNOS5440_CPUFREQ
	tristate "SAMSUNG EXYNOS5440"
	depends on SOC_EXYNOS5440
	depends on HAVE_CLK && OF
	select PM_OPP
	default y
	help
	  This adds the CPUFreq driver for Samsung EXYNOS5440
	  SoC. The nature of exynos5440 clock controller is
	  different than previous exynos controllers so not using
	  the common exynos framework.

	  If in doubt, say N.

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
	select PM_OPP
	help
	  This adds cpufreq driver support for Freescale i.MX6 series SoCs.

	  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
	depends on !CPU_THERMAL || THERMAL
	select PM_OPP
	help
	  This adds the CPUFreq driver support for MediaTek SoCs.

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

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
	select S3C2410_CPUFREQ_UTILS
	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)
	select S3C2410_CPUFREQ_UTILS
	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_SCPI_CPUFREQ
        tristate "SCPI based CPUfreq driver"
	depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
        help
	  This adds the CPUfreq driver support for ARM big.LITTLE 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_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 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_TANGO_CPUFREQ
	bool
	depends on CPUFREQ_DT && ARCH_TANGO
	default y

config ARM_TEGRA20_CPUFREQ
	bool "Tegra20 CPUFreq support"
	depends on ARCH_TEGRA
	default y
	help
	  This adds the CPUFreq driver support for Tegra20 SOCs.

config ARM_TEGRA124_CPUFREQ
	tristate "Tegra124 CPUFreq support"
	depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
	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_TI_CPUFREQ
	bool "Texas Instruments CPUFreq support"
	depends on 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.

config ACPI_CPPC_CPUFREQ
	tristate "CPUFreq driver based on the ACPI CPPC spec"
	depends on ACPI_PROCESSOR
	select ACPI_CPPC_LIB
	default n
	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.
Commit	Line	Data
f7d77079 KK	1	#
	2	# ARM CPU Frequency scaling drivers
	3	#
	4
3b84d58d	5	# big LITTLE core layer and glue drivers
8a67f0ef	6	config ARM_BIG_LITTLE_CPUFREQ
99af7711	7	tristate "Generic ARM big LITTLE CPUfreq driver"
14730145	8	depends on (ARM_CPU_TOPOLOGY \|\| ARM64) && HAVE_CLK
2f7e8a17 PA	9	# if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y
2f7e8a17 PA	10	depends on !CPU_THERMAL \|\| THERMAL
109df086	11	select PM_OPP
99af7711 VK	12	help
99af7711 VK	13	This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
8a67f0ef	14
de322e08 MM	15	config ARM_BRCMSTB_AVS_CPUFREQ
	16	tristate "Broadcom STB AVS CPUfreq driver"
	17	depends on ARCH_BRCMSTB \|\| COMPILE_TEST
	18	default y
	19	help
	20	Some Broadcom STB SoCs use a co-processor running proprietary firmware
	21	("AVS") to handle voltage and frequency scaling. This driver provides
	22	a standard CPUfreq interface to to the firmware.
	23
	24	Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
	25
33de45c1 MM	26	config ARM_BRCMSTB_AVS_CPUFREQ_DEBUG
	27	bool "Broadcom STB AVS CPUfreq driver sysfs debug capability"
	28	depends on ARM_BRCMSTB_AVS_CPUFREQ
	29	help
	30	Enabling this option turns on debug support via sysfs under
	31	/sys/kernel/debug/brcmstb-avs-cpufreq. It is possible to read all and
	32	write some AVS mailbox registers through sysfs entries.
	33
	34	If in doubt, say N.
	35
8a67f0ef	36	config ARM_DT_BL_CPUFREQ
99af7711 VK	37	tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
99af7711 VK	38	depends on ARM_BIG_LITTLE_CPUFREQ && OF
8a67f0ef	39	help
99af7711 VK	40	This enables probing via DT for Generic CPUfreq driver for ARM
99af7711 VK	41	big.LITTLE platform. This gets frequency tables from DT.
8a67f0ef	42
3b84d58d	43	config ARM_VEXPRESS_SPC_CPUFREQ
	44	tristate "Versatile Express SPC based CPUfreq driver"
	45	depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
	46	help
	47	This add the CPUfreq driver support for Versatile Express
	48	big.LITTLE platforms using SPC for power management.
	49
8b2b4a4e AB	50	config ARM_EXYNOS5440_CPUFREQ
	51	tristate "SAMSUNG EXYNOS5440"
	52	depends on SOC_EXYNOS5440
	53	depends on HAVE_CLK && OF
	54	select PM_OPP
	55	default y
	56	help
	57	This adds the CPUFreq driver for Samsung EXYNOS5440
	58	SoC. The nature of exynos5440 clock controller is
	59	different than previous exynos controllers so not using
	60	the common exynos framework.
	61
	62	If in doubt, say N.
	63
a0ea048a VK	64	config ARM_HIGHBANK_CPUFREQ
a0ea048a VK	65	tristate "Calxeda Highbank-based"
bbcf0719	66	depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
a0ea048a VK	67	default m
	68	help
	69	This adds the CPUFreq driver for Calxeda Highbank SoC
	70	based boards.
	71
	72	If in doubt, say N.
	73
	74	config ARM_IMX6Q_CPUFREQ
1d0eaae9 SG	75	tristate "Freescale i.MX6 cpufreq support"
1d0eaae9 SG	76	depends on ARCH_MXC
a0ea048a	77	depends on REGULATOR_ANATOP
7e021687	78	select PM_OPP
a0ea048a	79	help
1d0eaae9	80	This adds cpufreq driver support for Freescale i.MX6 series SoCs.
a0ea048a VK	81
	82	If in doubt, say N.
	83
	84	config ARM_KIRKWOOD_CPUFREQ
6c8df11d	85	def_bool MACH_KIRKWOOD
a0ea048a VK	86	help
	87	This adds the CPUFreq driver for Marvell Kirkwood
	88	SoCs.
	89
501c574f SW	90	config ARM_MEDIATEK_CPUFREQ
501c574f SW	91	tristate "CPU Frequency scaling support for MediaTek SoCs"
1453863f	92	depends on ARCH_MEDIATEK && REGULATOR
3c2002ae	93	depends on !CPU_THERMAL \|\| THERMAL
1453863f PCC	94	select PM_OPP
1453863f PCC	95	help
501c574f	96	This adds the CPUFreq driver support for MediaTek SoCs.
1453863f	97
b09db45c RK	98	config ARM_OMAP2PLUS_CPUFREQ
b09db45c RK	99	bool "TI OMAP2+"
2d59dcfb	100	depends on ARCH_OMAP2PLUS
b09db45c	101	default ARCH_OMAP2PLUS
b09db45c	102
f023f8dd VK	103	config ARM_S3C_CPUFREQ
	104	bool
	105	help
	106	Internal configuration node for common cpufreq on Samsung SoC
	107
	108	config ARM_S3C24XX_CPUFREQ
	109	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
	110	depends on ARCH_S3C24XX
	111	select ARM_S3C_CPUFREQ
	112	help
	113	This enables the CPUfreq driver for the Samsung S3C24XX family
	114	of CPUs.
	115
	116	For details, take a look at <file:Documentation/cpu-freq>.
	117
	118	If in doubt, say N.
	119
	120	config ARM_S3C24XX_CPUFREQ_DEBUG
	121	bool "Debug CPUfreq Samsung driver core"
	122	depends on ARM_S3C24XX_CPUFREQ
	123	help
	124	Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
	125
	126	config ARM_S3C24XX_CPUFREQ_IODEBUG
	127	bool "Debug CPUfreq Samsung driver IO timing"
	128	depends on ARM_S3C24XX_CPUFREQ
	129	help
	130	Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
	131
	132	config ARM_S3C24XX_CPUFREQ_DEBUGFS
	133	bool "Export debugfs for CPUFreq"
	134	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
	135	help
	136	Export status information via debugfs.
	137
	138	config ARM_S3C2410_CPUFREQ
	139	bool
	140	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
	141	select S3C2410_CPUFREQ_UTILS
	142	help
	143	CPU Frequency scaling support for S3C2410
	144
	145	config ARM_S3C2412_CPUFREQ
	146	bool
	147	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
	148	default y
	149	select S3C2412_IOTIMING
	150	help
	151	CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
	152
34ee5507 HS	153	config ARM_S3C2416_CPUFREQ
	154	bool "S3C2416 CPU Frequency scaling support"
	155	depends on CPU_S3C2416
	156	help
	157	This adds the CPUFreq driver for the Samsung S3C2416 and
	158	S3C2450 SoC. The S3C2416 supports changing the rate of the
	159	armdiv clock source and also entering a so called dynamic
	160	voltage scaling mode in which it is possible to reduce the
735dc249	161	core voltage of the CPU.
34ee5507 HS	162
	163	If in doubt, say N.
	164
	165	config ARM_S3C2416_CPUFREQ_VCORESCALE
0f194b56 KC	166	bool "Allow voltage scaling for S3C2416 arm core"
0f194b56 KC	167	depends on ARM_S3C2416_CPUFREQ && REGULATOR
34ee5507 HS	168	help
	169	Enable CPU voltage scaling when entering the dvs mode.
	170	It uses information gathered through existing hardware and
	171	tests but not documented in any datasheet.
	172
	173	If in doubt, say N.
	174
f023f8dd VK	175	config ARM_S3C2440_CPUFREQ
	176	bool "S3C2440/S3C2442 CPU Frequency scaling support"
	177	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 \|\| CPU_S3C2442)
	178	select S3C2410_CPUFREQ_UTILS
	179	default y
	180	help
	181	CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
	182
15964d38 KK	183	config ARM_S3C64XX_CPUFREQ
	184	bool "Samsung S3C64XX"
	185	depends on CPU_S3C6410
	186	default y
	187	help
	188	This adds the CPUFreq driver for Samsung S3C6410 SoC.
	189
	190	If in doubt, say N.
	191
f7d77079 KK	192	config ARM_S5PV210_CPUFREQ
	193	bool "Samsung S5PV210 and S5PC110"
	194	depends on CPU_S5PV210
	195	default y
	196	help
	197	This adds the CPUFreq driver for Samsung S5PV210 and
	198	S5PC110 SoCs.
	199
	200	If in doubt, say N.
	201
59a2e613 VK	202	config ARM_SA1100_CPUFREQ
	203	bool
	204
	205	config ARM_SA1110_CPUFREQ
	206	bool
	207
8def3103 SH	208	config ARM_SCPI_CPUFREQ
8def3103 SH	209	tristate "SCPI based CPUfreq driver"
73124ced	210	depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
8def3103 SH	211	help
	212	This adds the CPUfreq driver support for ARM big.LITTLE platforms
	213	using SCPI protocol for CPU power management.
	214
	215	This driver uses SCPI Message Protocol driver to interact with the
	216	firmware providing the CPU DVFS functionality.
	217
42099322 DS	218	config ARM_SPEAR_CPUFREQ
	219	bool "SPEAr CPUFreq support"
	220	depends on PLAT_SPEAR
	221	default y
	222	help
	223	This adds the CPUFreq driver support for SPEAr SOCs.
dbb8d76e	224
ab0ea257 LJ	225	config ARM_STI_CPUFREQ
	226	tristate "STi CPUFreq support"
	227	depends on SOC_STIH407
	228	help
	229	This driver uses the generic OPP framework to match the running
	230	platform with a predefined set of suitable values. If not provided
	231	we will fall-back so safe-values contained in Device Tree. Enable
	232	this config option if you wish to add CPUFreq support for STi based
	233	SoCs.
	234
9dbd224f MG	235	config ARM_TANGO_CPUFREQ
	236	bool
	237	depends on CPUFREQ_DT && ARCH_TANGO
	238	default y
	239
109e13ea TT	240	config ARM_TEGRA20_CPUFREQ
109e13ea TT	241	bool "Tegra20 CPUFreq support"
dbb8d76e	242	depends on ARCH_TEGRA
dbb8d76e VK	243	default y
dbb8d76e VK	244	help
109e13ea	245	This adds the CPUFreq driver support for Tegra20 SOCs.
608eab22	246
9eb15dbb TT	247	config ARM_TEGRA124_CPUFREQ
9eb15dbb TT	248	tristate "Tegra124 CPUFreq support"
b5832e4b	249	depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
9eb15dbb TT	250	default y
	251	help
	252	This adds the CPUFreq driver support for Tegra124 SOCs.
	253
939dc6f5 MP	254	config ARM_TEGRA186_CPUFREQ
	255	tristate "Tegra186 CPUFreq support"
	256	depends on ARCH_TEGRA && TEGRA_BPMP
	257	help
	258	This adds the CPUFreq driver support for Tegra186 SOCs.
	259
e13cf046 DG	260	config ARM_TI_CPUFREQ
	261	bool "Texas Instruments CPUFreq support"
	262	depends on ARCH_OMAP2PLUS
	263	help
	264	This driver enables valid OPPs on the running platform based on
	265	values contained within the SoC in use. Enable this in order to
	266	use the cpufreq-dt driver on all Texas Instruments platforms that
	267	provide dt based operating-points-v2 tables with opp-supported-hw
	268	data provided. Required for cpufreq support on AM335x, AM437x,
	269	DRA7x, and AM57x platforms.
	270
608eab22 PC	271	config ARM_PXA2xx_CPUFREQ
	272	tristate "Intel PXA2xx CPUfreq driver"
	273	depends on PXA27x \|\| PXA25x
	274	help
	275	This add the CPUFreq driver support for Intel PXA2xx SOCs.
	276
	277	If in doubt, say N.
5477fb3b AC	278
	279	config ACPI_CPPC_CPUFREQ
	280	tristate "CPUFreq driver based on the ACPI CPPC spec"
a578884f	281	depends on ACPI_PROCESSOR
5477fb3b AC	282	select ACPI_CPPC_LIB
	283	default n
	284	help
	285	This adds a CPUFreq driver which uses CPPC methods
	286	as described in the ACPIv5.1 spec. CPPC stands for
	287	Collaborative Processor Performance Controls. It
	288	is based on an abstract continuous scale of CPU
	289	performance values which allows the remote power
	290	processor to flexibly optimize for power and
	291	performance. CPPC relies on power management firmware
	292	support for its operation.
	293
	294	If in doubt, say N.