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4855e26bcf
Introduce cpufreq HW driver which can support CPU frequency adjust in MT6779 platform. Signed-off-by: Hector.Yuan <hector.yuan@mediatek.com> [ Viresh: Massaged the patch and cleaned some stuff. ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
359 lines
10 KiB
Text
359 lines
10 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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#
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# ARM CPU Frequency scaling drivers
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#
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config ACPI_CPPC_CPUFREQ
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tristate "CPUFreq driver based on the ACPI CPPC spec"
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depends on ACPI_PROCESSOR
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select ACPI_CPPC_LIB
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help
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This adds a CPUFreq driver which uses CPPC methods
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as described in the ACPIv5.1 spec. CPPC stands for
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Collaborative Processor Performance Controls. It
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is based on an abstract continuous scale of CPU
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performance values which allows the remote power
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processor to flexibly optimize for power and
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performance. CPPC relies on power management firmware
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support for its operation.
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If in doubt, say N.
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config ACPI_CPPC_CPUFREQ_FIE
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bool "Frequency Invariance support for CPPC cpufreq driver"
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depends on ACPI_CPPC_CPUFREQ && GENERIC_ARCH_TOPOLOGY
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default y
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help
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This extends frequency invariance support in the CPPC cpufreq driver,
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by using CPPC delivered and reference performance counters.
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If in doubt, say N.
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config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
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tristate "Allwinner nvmem based SUN50I CPUFreq driver"
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depends on ARCH_SUNXI
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depends on NVMEM_SUNXI_SID
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select PM_OPP
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help
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This adds the nvmem based CPUFreq driver for Allwinner
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h6 SoC.
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To compile this driver as a module, choose M here: the
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module will be called sun50i-cpufreq-nvmem.
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config ARM_ARMADA_37XX_CPUFREQ
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tristate "Armada 37xx CPUFreq support"
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depends on ARCH_MVEBU && CPUFREQ_DT
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help
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This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
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The Armada 37xx PMU supports 4 frequency and VDD levels.
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config ARM_ARMADA_8K_CPUFREQ
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tristate "Armada 8K CPUFreq driver"
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depends on ARCH_MVEBU && CPUFREQ_DT
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select ARMADA_AP_CPU_CLK
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help
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This enables the CPUFreq driver support for Marvell
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Armada8k SOCs.
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Armada8K device has the AP806 which supports scaling
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to any full integer divider.
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If in doubt, say N.
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config ARM_SCPI_CPUFREQ
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tristate "SCPI based CPUfreq driver"
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depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
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help
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This adds the CPUfreq driver support for ARM platforms using SCPI
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protocol for CPU power management.
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This driver uses SCPI Message Protocol driver to interact with the
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firmware providing the CPU DVFS functionality.
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config ARM_VEXPRESS_SPC_CPUFREQ
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tristate "Versatile Express SPC based CPUfreq driver"
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depends on ARM_CPU_TOPOLOGY && HAVE_CLK
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depends on ARCH_VEXPRESS_SPC
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select PM_OPP
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help
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This add the CPUfreq driver support for Versatile Express
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big.LITTLE platforms using SPC for power management.
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config ARM_BRCMSTB_AVS_CPUFREQ
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tristate "Broadcom STB AVS CPUfreq driver"
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depends on ARCH_BRCMSTB || COMPILE_TEST
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default y
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help
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Some Broadcom STB SoCs use a co-processor running proprietary firmware
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("AVS") to handle voltage and frequency scaling. This driver provides
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a standard CPUfreq interface to to the firmware.
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Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
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config ARM_HIGHBANK_CPUFREQ
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tristate "Calxeda Highbank-based"
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depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
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default m
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help
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This adds the CPUFreq driver for Calxeda Highbank SoC
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based boards.
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If in doubt, say N.
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config ARM_IMX6Q_CPUFREQ
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tristate "Freescale i.MX6 cpufreq support"
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depends on ARCH_MXC
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depends on REGULATOR_ANATOP
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depends on NVMEM_IMX_OCOTP || COMPILE_TEST
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select PM_OPP
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help
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This adds cpufreq driver support for Freescale i.MX6 series SoCs.
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If in doubt, say N.
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config ARM_IMX_CPUFREQ_DT
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tristate "Freescale i.MX8M cpufreq support"
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depends on ARCH_MXC && CPUFREQ_DT
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help
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This adds cpufreq driver support for Freescale i.MX8M series SoCs,
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based on cpufreq-dt.
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If in doubt, say N.
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config ARM_KIRKWOOD_CPUFREQ
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def_bool MACH_KIRKWOOD
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help
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This adds the CPUFreq driver for Marvell Kirkwood
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SoCs.
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config ARM_MEDIATEK_CPUFREQ
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tristate "CPU Frequency scaling support for MediaTek SoCs"
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depends on ARCH_MEDIATEK && REGULATOR
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select PM_OPP
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help
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This adds the CPUFreq driver support for MediaTek SoCs.
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config ARM_MEDIATEK_CPUFREQ_HW
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tristate "MediaTek CPUFreq HW driver"
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depends on ARCH_MEDIATEK || COMPILE_TEST
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default m
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help
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Support for the CPUFreq HW driver.
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Some MediaTek chipsets have a HW engine to offload the steps
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necessary for changing the frequency of the CPUs. Firmware loaded
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in this engine exposes a programming interface to the OS.
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The driver implements the cpufreq interface for this HW engine.
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Say Y if you want to support CPUFreq HW.
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config ARM_OMAP2PLUS_CPUFREQ
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bool "TI OMAP2+"
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depends on ARCH_OMAP2PLUS
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default ARCH_OMAP2PLUS
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config ARM_QCOM_CPUFREQ_NVMEM
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tristate "Qualcomm nvmem based CPUFreq"
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depends on ARCH_QCOM
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depends on QCOM_QFPROM
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depends on QCOM_SMEM
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select PM_OPP
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help
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This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
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If in doubt, say N.
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config ARM_QCOM_CPUFREQ_HW
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tristate "QCOM CPUFreq HW driver"
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depends on ARCH_QCOM || COMPILE_TEST
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help
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Support for the CPUFreq HW driver.
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Some QCOM chipsets have a HW engine to offload the steps
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necessary for changing the frequency of the CPUs. Firmware loaded
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in this engine exposes a programming interface to the OS.
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The driver implements the cpufreq interface for this HW engine.
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Say Y if you want to support CPUFreq HW.
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config ARM_RASPBERRYPI_CPUFREQ
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tristate "Raspberry Pi cpufreq support"
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depends on CLK_RASPBERRYPI || COMPILE_TEST
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help
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This adds the CPUFreq driver for Raspberry Pi
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If in doubt, say N.
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config ARM_S3C_CPUFREQ
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bool
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help
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Internal configuration node for common cpufreq on Samsung SoC
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config ARM_S3C24XX_CPUFREQ
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bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
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depends on ARCH_S3C24XX
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select ARM_S3C_CPUFREQ
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help
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This enables the CPUfreq driver for the Samsung S3C24XX family
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of CPUs.
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For details, take a look at <file:Documentation/cpu-freq>.
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If in doubt, say N.
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config ARM_S3C24XX_CPUFREQ_DEBUG
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bool "Debug CPUfreq Samsung driver core"
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depends on ARM_S3C24XX_CPUFREQ
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help
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Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
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config ARM_S3C24XX_CPUFREQ_IODEBUG
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bool "Debug CPUfreq Samsung driver IO timing"
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depends on ARM_S3C24XX_CPUFREQ
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help
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Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
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config ARM_S3C24XX_CPUFREQ_DEBUGFS
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bool "Export debugfs for CPUFreq"
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depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
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help
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Export status information via debugfs.
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config ARM_S3C2410_CPUFREQ
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bool
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depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
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help
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CPU Frequency scaling support for S3C2410
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config ARM_S3C2412_CPUFREQ
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bool
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depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
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default y
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select S3C2412_IOTIMING
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help
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CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
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config ARM_S3C2416_CPUFREQ
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bool "S3C2416 CPU Frequency scaling support"
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depends on CPU_S3C2416
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help
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This adds the CPUFreq driver for the Samsung S3C2416 and
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S3C2450 SoC. The S3C2416 supports changing the rate of the
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armdiv clock source and also entering a so called dynamic
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voltage scaling mode in which it is possible to reduce the
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core voltage of the CPU.
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If in doubt, say N.
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config ARM_S3C2416_CPUFREQ_VCORESCALE
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bool "Allow voltage scaling for S3C2416 arm core"
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depends on ARM_S3C2416_CPUFREQ && REGULATOR
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help
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Enable CPU voltage scaling when entering the dvs mode.
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It uses information gathered through existing hardware and
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tests but not documented in any datasheet.
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If in doubt, say N.
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config ARM_S3C2440_CPUFREQ
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bool "S3C2440/S3C2442 CPU Frequency scaling support"
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depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
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default y
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help
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CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
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config ARM_S3C64XX_CPUFREQ
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bool "Samsung S3C64XX"
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depends on CPU_S3C6410
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default y
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help
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This adds the CPUFreq driver for Samsung S3C6410 SoC.
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If in doubt, say N.
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config ARM_S5PV210_CPUFREQ
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bool "Samsung S5PV210 and S5PC110"
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depends on CPU_S5PV210
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default y
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help
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This adds the CPUFreq driver for Samsung S5PV210 and
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S5PC110 SoCs.
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If in doubt, say N.
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config ARM_SA1100_CPUFREQ
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bool
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config ARM_SA1110_CPUFREQ
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bool
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config ARM_SCMI_CPUFREQ
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tristate "SCMI based CPUfreq driver"
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depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
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select PM_OPP
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help
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This adds the CPUfreq driver support for ARM platforms using SCMI
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protocol for CPU power management.
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This driver uses SCMI Message Protocol driver to interact with the
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firmware providing the CPU DVFS functionality.
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config ARM_SPEAR_CPUFREQ
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bool "SPEAr CPUFreq support"
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depends on PLAT_SPEAR
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default y
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help
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This adds the CPUFreq driver support for SPEAr SOCs.
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config ARM_STI_CPUFREQ
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tristate "STi CPUFreq support"
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depends on CPUFREQ_DT && SOC_STIH407
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help
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This driver uses the generic OPP framework to match the running
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platform with a predefined set of suitable values. If not provided
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we will fall-back so safe-values contained in Device Tree. Enable
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this config option if you wish to add CPUFreq support for STi based
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SoCs.
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config ARM_TEGRA20_CPUFREQ
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tristate "Tegra20/30 CPUFreq support"
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depends on ARCH_TEGRA && CPUFREQ_DT
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default y
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help
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This adds the CPUFreq driver support for Tegra20/30 SOCs.
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config ARM_TEGRA124_CPUFREQ
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bool "Tegra124 CPUFreq support"
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depends on ARCH_TEGRA && CPUFREQ_DT
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default y
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help
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This adds the CPUFreq driver support for Tegra124 SOCs.
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config ARM_TEGRA186_CPUFREQ
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tristate "Tegra186 CPUFreq support"
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depends on ARCH_TEGRA && TEGRA_BPMP
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help
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This adds the CPUFreq driver support for Tegra186 SOCs.
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config ARM_TEGRA194_CPUFREQ
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tristate "Tegra194 CPUFreq support"
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depends on ARCH_TEGRA_194_SOC && TEGRA_BPMP
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default y
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help
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This adds CPU frequency driver support for Tegra194 SOCs.
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config ARM_TI_CPUFREQ
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bool "Texas Instruments CPUFreq support"
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depends on ARCH_OMAP2PLUS
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default ARCH_OMAP2PLUS
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help
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This driver enables valid OPPs on the running platform based on
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values contained within the SoC in use. Enable this in order to
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use the cpufreq-dt driver on all Texas Instruments platforms that
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provide dt based operating-points-v2 tables with opp-supported-hw
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data provided. Required for cpufreq support on AM335x, AM437x,
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DRA7x, and AM57x platforms.
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config ARM_PXA2xx_CPUFREQ
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tristate "Intel PXA2xx CPUfreq driver"
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depends on PXA27x || PXA25x
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help
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This add the CPUFreq driver support for Intel PXA2xx SOCs.
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If in doubt, say N.
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