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# 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_APPLE_SOC_CPUFREQ
tristate "Apple Silicon SoC CPUFreq support"
depends on ARCH_APPLE || (COMPILE_TEST && 64BIT)
select PM_OPP
default ARCH_APPLE
help
This adds the CPUFreq driver for Apple Silicon machines
(e.g. Apple M1).
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 && !ARM_SCMI_CPUFREQ) || 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 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.MX7/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 NVMEM_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_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_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 || ARCH_K3
default y
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.
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