The CPUfreq HW present in some Mediatek chipsets offloads the steps necessary for changing the frequency of CPUs. The driver implements the cpufreq driver interface for this hardware engine. This patch depends on the MT6799 DTS patch submitted by Hanks Chen https://lkml.org/lkml/2020/8/4/1094 Hector.Yuan (2): cpufreq: mediatek-hw: Add support for Mediatek cpufreq dt-bindings: cpufreq: add MediaTek cpufreq bindings .../bindings/cpufreq/cpufreq-mediatek-hw.yaml | 56 +++++ arch/arm64/configs/defconfig | 1 + drivers/cpufreq/Kconfig.arm | 11 + drivers/cpufreq/Makefile | 1 + drivers/cpufreq/mediatek-cpufreq-hw.c | 255 ++++++++++++++++++++ 5 files changed, 324 insertions(+) create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml create mode 100644 drivers/cpufreq/mediatek-cpufreq-hw.c
