[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_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
	53	config ARM_IMX6Q_CPUFREQ
1d0eaae9 SG	54	tristate "Freescale i.MX6 cpufreq support"
1d0eaae9 SG	55	depends on ARCH_MXC
a0ea048a	56	depends on REGULATOR_ANATOP
7e021687	57	select PM_OPP
a0ea048a	58	help
1d0eaae9	59	This adds cpufreq driver support for Freescale i.MX6 series SoCs.
a0ea048a VK	60
	61	If in doubt, say N.
	62
b7e614c8 VK	63	config ARM_INTEGRATOR
	64	tristate "CPUfreq driver for ARM Integrator CPUs"
	65	depends on ARCH_INTEGRATOR
	66	default y
	67	help
	68	This enables the CPUfreq driver for ARM Integrator CPUs.
	69	If in doubt, say Y.
	70
a0ea048a	71	config ARM_KIRKWOOD_CPUFREQ
6c8df11d	72	def_bool MACH_KIRKWOOD
a0ea048a VK	73	help
	74	This adds the CPUFreq driver for Marvell Kirkwood
	75	SoCs.
	76
1453863f	77	config ARM_MT8173_CPUFREQ
3c2002ae	78	tristate "Mediatek MT8173 CPUFreq support"
1453863f	79	depends on ARCH_MEDIATEK && REGULATOR
2d4ee303	80	depends on ARM64 \|\| (ARM_CPU_TOPOLOGY && COMPILE_TEST)
3c2002ae	81	depends on !CPU_THERMAL \|\| THERMAL
1453863f PCC	82	select PM_OPP
	83	help
	84	This adds the CPUFreq driver support for Mediatek MT8173 SoC.
	85
b09db45c RK	86	config ARM_OMAP2PLUS_CPUFREQ
b09db45c RK	87	bool "TI OMAP2+"
2d59dcfb	88	depends on ARCH_OMAP2PLUS
b09db45c	89	default ARCH_OMAP2PLUS
b09db45c	90
f023f8dd VK	91	config ARM_S3C_CPUFREQ
	92	bool
	93	help
	94	Internal configuration node for common cpufreq on Samsung SoC
	95
	96	config ARM_S3C24XX_CPUFREQ
	97	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
	98	depends on ARCH_S3C24XX
	99	select ARM_S3C_CPUFREQ
	100	help
	101	This enables the CPUfreq driver for the Samsung S3C24XX family
	102	of CPUs.
	103
	104	For details, take a look at <file:Documentation/cpu-freq>.
	105
	106	If in doubt, say N.
	107
	108	config ARM_S3C24XX_CPUFREQ_DEBUG
	109	bool "Debug CPUfreq Samsung driver core"
	110	depends on ARM_S3C24XX_CPUFREQ
	111	help
	112	Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
	113
	114	config ARM_S3C24XX_CPUFREQ_IODEBUG
	115	bool "Debug CPUfreq Samsung driver IO timing"
	116	depends on ARM_S3C24XX_CPUFREQ
	117	help
	118	Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
	119
	120	config ARM_S3C24XX_CPUFREQ_DEBUGFS
	121	bool "Export debugfs for CPUFreq"
	122	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
	123	help
	124	Export status information via debugfs.
	125
	126	config ARM_S3C2410_CPUFREQ
	127	bool
	128	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
	129	select S3C2410_CPUFREQ_UTILS
	130	help
	131	CPU Frequency scaling support for S3C2410
	132
	133	config ARM_S3C2412_CPUFREQ
	134	bool
	135	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
	136	default y
	137	select S3C2412_IOTIMING
	138	help
	139	CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
	140
34ee5507 HS	141	config ARM_S3C2416_CPUFREQ
	142	bool "S3C2416 CPU Frequency scaling support"
	143	depends on CPU_S3C2416
	144	help
	145	This adds the CPUFreq driver for the Samsung S3C2416 and
	146	S3C2450 SoC. The S3C2416 supports changing the rate of the
	147	armdiv clock source and also entering a so called dynamic
	148	voltage scaling mode in which it is possible to reduce the
735dc249	149	core voltage of the CPU.
34ee5507 HS	150
	151	If in doubt, say N.
	152
	153	config ARM_S3C2416_CPUFREQ_VCORESCALE
0f194b56 KC	154	bool "Allow voltage scaling for S3C2416 arm core"
0f194b56 KC	155	depends on ARM_S3C2416_CPUFREQ && REGULATOR
34ee5507 HS	156	help
	157	Enable CPU voltage scaling when entering the dvs mode.
	158	It uses information gathered through existing hardware and
	159	tests but not documented in any datasheet.
	160
	161	If in doubt, say N.
	162
f023f8dd VK	163	config ARM_S3C2440_CPUFREQ
	164	bool "S3C2440/S3C2442 CPU Frequency scaling support"
	165	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 \|\| CPU_S3C2442)
	166	select S3C2410_CPUFREQ_UTILS
	167	default y
	168	help
	169	CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
	170
15964d38 KK	171	config ARM_S3C64XX_CPUFREQ
	172	bool "Samsung S3C64XX"
	173	depends on CPU_S3C6410
	174	default y
	175	help
	176	This adds the CPUFreq driver for Samsung S3C6410 SoC.
	177
	178	If in doubt, say N.
	179
f7d77079 KK	180	config ARM_S5PV210_CPUFREQ
	181	bool "Samsung S5PV210 and S5PC110"
	182	depends on CPU_S5PV210
	183	default y
	184	help
	185	This adds the CPUFreq driver for Samsung S5PV210 and
	186	S5PC110 SoCs.
	187
	188	If in doubt, say N.
	189
59a2e613 VK	190	config ARM_SA1100_CPUFREQ
	191	bool
	192
	193	config ARM_SA1110_CPUFREQ
	194	bool
	195
8def3103 SH	196	config ARM_SCPI_CPUFREQ
8def3103 SH	197	tristate "SCPI based CPUfreq driver"
73124ced	198	depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
8def3103 SH	199	help
	200	This adds the CPUfreq driver support for ARM big.LITTLE platforms
	201	using SCPI protocol for CPU power management.
	202
	203	This driver uses SCPI Message Protocol driver to interact with the
	204	firmware providing the CPU DVFS functionality.
	205
42099322 DS	206	config ARM_SPEAR_CPUFREQ
	207	bool "SPEAr CPUFreq support"
	208	depends on PLAT_SPEAR
	209	default y
	210	help
	211	This adds the CPUFreq driver support for SPEAr SOCs.
dbb8d76e	212
ab0ea257 LJ	213	config ARM_STI_CPUFREQ
	214	tristate "STi CPUFreq support"
	215	depends on SOC_STIH407
	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
109e13ea TT	223	config ARM_TEGRA20_CPUFREQ
109e13ea TT	224	bool "Tegra20 CPUFreq support"
dbb8d76e	225	depends on ARCH_TEGRA
dbb8d76e VK	226	default y
dbb8d76e VK	227	help
109e13ea	228	This adds the CPUFreq driver support for Tegra20 SOCs.
608eab22	229
9eb15dbb TT	230	config ARM_TEGRA124_CPUFREQ
9eb15dbb TT	231	tristate "Tegra124 CPUFreq support"
b5832e4b	232	depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
9eb15dbb TT	233	default y
	234	help
	235	This adds the CPUFreq driver support for Tegra124 SOCs.
	236
608eab22 PC	237	config ARM_PXA2xx_CPUFREQ
	238	tristate "Intel PXA2xx CPUfreq driver"
	239	depends on PXA27x \|\| PXA25x
	240	help
	241	This add the CPUFreq driver support for Intel PXA2xx SOCs.
	242
	243	If in doubt, say N.
5477fb3b AC	244
	245	config ACPI_CPPC_CPUFREQ
	246	tristate "CPUFreq driver based on the ACPI CPPC spec"
	247	depends on ACPI
	248	select ACPI_CPPC_LIB
	249	default n
	250	help
	251	This adds a CPUFreq driver which uses CPPC methods
	252	as described in the ACPIv5.1 spec. CPPC stands for
	253	Collaborative Processor Performance Controls. It
	254	is based on an abstract continuous scale of CPU
	255	performance values which allows the remote power
	256	processor to flexibly optimize for power and
	257	performance. CPPC relies on power management firmware
	258	support for its operation.
	259
	260	If in doubt, say N.