[linux-2.6-block.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_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_HISI_ACPU_CPUFREQ
	tristate "Hisilicon ACPU CPUfreq driver"
	depends on ARCH_HISI && CPUFREQ_DT
	select PM_OPP
	help
	  This enables the hisilicon ACPU CPUfreq driver.

	  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_INTEGRATOR
	tristate "CPUfreq driver for ARM Integrator CPUs"
	depends on ARCH_INTEGRATOR
	default y
	help
	  This enables the CPUfreq driver for ARM Integrator CPUs.
	  If in doubt, say Y.

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

config ARM_MT8173_CPUFREQ
	tristate "Mediatek MT8173 CPUFreq support"
	depends on ARCH_MEDIATEK && REGULATOR
	depends on ARM64 || (ARM_CPU_TOPOLOGY && COMPILE_TEST)
	depends on !CPU_THERMAL || THERMAL
	select PM_OPP
	help
	  This adds the CPUFreq driver support for Mediatek MT8173 SoC.

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_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_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
	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 VK	14
8a67f0ef VK	15	config ARM_DT_BL_CPUFREQ
99af7711 VK	16	tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
99af7711 VK	17	depends on ARM_BIG_LITTLE_CPUFREQ && OF
8a67f0ef	18	help
99af7711 VK	19	This enables probing via DT for Generic CPUfreq driver for ARM
99af7711 VK	20	big.LITTLE platform. This gets frequency tables from DT.
8a67f0ef	21
3b84d58d	22	config 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
8b2b4a4e AB	29	config 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
a0ea048a VK	43	config ARM_HIGHBANK_CPUFREQ
a0ea048a VK	44	tristate "Calxeda Highbank-based"
bbcf0719	45	depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
a0ea048a VK	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
5acb972f LY	53	config 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
a0ea048a	62	config ARM_IMX6Q_CPUFREQ
1d0eaae9 SG	63	tristate "Freescale i.MX6 cpufreq support"
1d0eaae9 SG	64	depends on ARCH_MXC
a0ea048a	65	depends on REGULATOR_ANATOP
7e021687	66	select PM_OPP
a0ea048a	67	help
1d0eaae9	68	This adds cpufreq driver support for Freescale i.MX6 series SoCs.
a0ea048a VK	69
	70	If in doubt, say N.
	71
b7e614c8 VK	72	config 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
a0ea048a	80	config ARM_KIRKWOOD_CPUFREQ
6c8df11d	81	def_bool MACH_KIRKWOOD
a0ea048a VK	82	help
	83	This adds the CPUFreq driver for Marvell Kirkwood
	84	SoCs.
	85
1453863f	86	config ARM_MT8173_CPUFREQ
3c2002ae	87	tristate "Mediatek MT8173 CPUFreq support"
1453863f	88	depends on ARCH_MEDIATEK && REGULATOR
2d4ee303	89	depends on ARM64 \|\| (ARM_CPU_TOPOLOGY && COMPILE_TEST)
3c2002ae	90	depends on !CPU_THERMAL \|\| THERMAL
1453863f PCC	91	select PM_OPP
	92	help
	93	This adds the CPUFreq driver support for Mediatek MT8173 SoC.
	94
b09db45c RK	95	config ARM_OMAP2PLUS_CPUFREQ
b09db45c RK	96	bool "TI OMAP2+"
2d59dcfb	97	depends on ARCH_OMAP2PLUS
b09db45c	98	default ARCH_OMAP2PLUS
b09db45c	99
f023f8dd VK	100	config ARM_S3C_CPUFREQ
	101	bool
	102	help
	103	Internal configuration node for common cpufreq on Samsung SoC
	104
	105	config 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
	117	config 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
	123	config 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
	129	config 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
	135	config 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
	142	config 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
34ee5507 HS	150	config 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
735dc249	158	core voltage of the CPU.
34ee5507 HS	159
	160	If in doubt, say N.
	161
	162	config ARM_S3C2416_CPUFREQ_VCORESCALE
0f194b56 KC	163	bool "Allow voltage scaling for S3C2416 arm core"
0f194b56 KC	164	depends on ARM_S3C2416_CPUFREQ && REGULATOR
34ee5507 HS	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
f023f8dd VK	172	config 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
15964d38 KK	180	config 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
f7d77079 KK	189	config 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
59a2e613 VK	199	config ARM_SA1100_CPUFREQ
	200	bool
	201
	202	config ARM_SA1110_CPUFREQ
	203	bool
	204
8def3103 SH	205	config ARM_SCPI_CPUFREQ
8def3103 SH	206	tristate "SCPI based CPUfreq driver"
73124ced	207	depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
8def3103 SH	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
42099322 DS	215	config 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.
dbb8d76e	221
ab0ea257 LJ	222	config 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
109e13ea TT	232	config ARM_TEGRA20_CPUFREQ
109e13ea TT	233	bool "Tegra20 CPUFreq support"
dbb8d76e	234	depends on ARCH_TEGRA
dbb8d76e VK	235	default y
dbb8d76e VK	236	help
109e13ea	237	This adds the CPUFreq driver support for Tegra20 SOCs.
608eab22	238
9eb15dbb TT	239	config ARM_TEGRA124_CPUFREQ
9eb15dbb TT	240	tristate "Tegra124 CPUFreq support"
b5832e4b	241	depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
9eb15dbb TT	242	default y
	243	help
	244	This adds the CPUFreq driver support for Tegra124 SOCs.
	245
608eab22 PC	246	config 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.
5477fb3b AC	253
	254	config 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.