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.
This extends frequency invariance support in the CPPC cpufreq driver, by using CPPC delivered and reference performance counters. If in doubt, say N.
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.
This adds the CPUFreq driver support for Marvell Armada 37xx SoCs. The Armada 37xx PMU supports 4 frequency and VDD levels.
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.
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.
This add the CPUfreq driver support for Versatile Express big.LITTLE platforms using SPC for power management.
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 to the firmware.
Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
This adds the CPUFreq driver for Calxeda Highbank SoC based boards. If in doubt, say N.
This adds cpufreq driver support for Freescale i.MX6 series SoCs. If in doubt, say N.
This adds cpufreq driver support for Freescale i.MX8M series SoCs, based on cpufreq-dt. If in doubt, say N.
This adds the CPUFreq driver for Marvell Kirkwood SoCs.
This adds the CPUFreq driver support for MediaTek SoCs.
This adds the CPUFreq driver for Qualcomm Kryo SoC based boards. If in doubt, say N.
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.
This adds the CPUFreq driver for Raspberry Pi If in doubt, say N.
Internal configuration node for common cpufreq on Samsung SoC
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.
Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
Export status information via debugfs.
CPU Frequency scaling support for S3C2410
CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
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.
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.
CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
This adds the CPUFreq driver for Samsung S3C6410 SoC. If in doubt, say N.
This adds the CPUFreq driver for Samsung S5PV210 and S5PC110 SoCs. If in doubt, say N.
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.
This adds the CPUFreq driver support for SPEAr SOCs.
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.
This adds the CPUFreq driver support for Tegra20/30 SOCs.
This adds the CPUFreq driver support for Tegra124 SOCs.
This adds the CPUFreq driver support for Tegra186 SOCs.
This adds CPU frequency driver support for Tegra194 SOCs.
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.
This add the CPUFreq driver support for Intel PXA2xx SOCs. If in doubt, say N.