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alistair23-linux/drivers/cpufreq/Kconfig.arm
Linus Torvalds b44a3d2a85 ARM: SoC driver updates for v4.4 
As we've enabled multiplatform kernels on ARM, and greatly done away with
 the contents under arch/arm/mach-*, there's still need for SoC-related
 drivers to go somewhere.
 
 Many of them go in through other driver trees, but we still have
 drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
 that might be shared between ARM and ARM64 (or just in general makes
 sense to not have under the architecture directory).
 
 This branch contains mostly such code:
 
 - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to communicate
   with power management blocks on these SoCs for use by clock, regulator and
   bus frequency drivers.
 - Allwinner Reduced Serial Bus driver, again used to communicate with PMICs.
 - Drivers for ARM's SCPI (System Control Processor). Not to be confused with
   PSCI (Power State Coordination Interface). SCPI is used to communicate with
   the assistant embedded cores doing power management, and we have yet to see
   how many of them will implement this for their hardware vs abstracting in
   other ways (or not at all like in the past).
 - To make confusion between SCPI and PSCI more likely, this release also
   includes an update of PSCI to interface version 1.0.
 - Rockchip support for power domains.
 - A driver to talk to the firmware on Raspberry Pi.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "As we've enabled multiplatform kernels on ARM, and greatly done away
  with the contents under arch/arm/mach-*, there's still need for
  SoC-related drivers to go somewhere.

  Many of them go in through other driver trees, but we still have
  drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
  that might be shared between ARM and ARM64 (or just in general makes
  sense to not have under the architecture directory).

  This branch contains mostly such code:

   - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to
     communicate with power management blocks on these SoCs for use by
     clock, regulator and bus frequency drivers.

   - Allwinner Reduced Serial Bus driver, again used to communicate with
     PMICs.

   - Drivers for ARM's SCPI (System Control Processor).  Not to be
     confused with PSCI (Power State Coordination Interface).  SCPI is
     used to communicate with the assistant embedded cores doing power
     management, and we have yet to see how many of them will implement
     this for their hardware vs abstracting in other ways (or not at all
     like in the past).

   - To make confusion between SCPI and PSCI more likely, this release
     also includes an update of PSCI to interface version 1.0.

   - Rockchip support for power domains.

   - A driver to talk to the firmware on Raspberry Pi"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits)
  soc: qcom: smd-rpm: Correct size of outgoing message
  bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus
  bus: sunxi-rsb: Add Allwinner Reduced Serial Bus (RSB) controller bindings
  ARM: bcm2835: add mutual inclusion protection
  drivers: psci: make PSCI 1.0 functions initialization version dependent
  dt-bindings: Correct paths in Rockchip power domains binding document
  soc: rockchip: power-domain: don't try to print the clock name in error case
  soc: qcom/smem: add HWSPINLOCK dependency
  clk: berlin: add cpuclk
  ARM: berlin: dts: add CLKID_CPU for BG2Q
  ARM: bcm2835: Add the Raspberry Pi firmware driver
  soc: qcom: smem: Move RPM message ram out of smem DT node
  soc: qcom: smd-rpm: Correct the active vs sleep state flagging
  soc: qcom: smd: delete unneeded of_node_put
  firmware: qcom-scm: build for correct architecture level
  soc: qcom: smd: Correct SMEM items for upper channels
  qcom-scm: add missing prototype for qcom_scm_is_available()
  qcom-scm: fix endianess issue in __qcom_scm_is_call_available
  soc: qcom: smd: Reject send of too big packets
  soc: qcom: smd: Handle big endian CPUs
  ...
2015-11-10 15:00:03 -08:00

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#
# 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
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
bool "Mediatek MT8173 CPUFreq support"
depends on ARCH_MEDIATEK && REGULATOR
depends on !CPU_THERMAL || THERMAL=y
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
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_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
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.
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