On Thu, Feb 8, 2024 at 4:44 AM Sunil V L <sunilvl@xxxxxxxxxxxxxxxx> wrote: > > This series enables the support for "Collaborative Processor Performance > Control (CPPC) on ACPI based RISC-V platforms. It depends on the > encoding of CPPC registers as defined in RISC-V FFH spec [2]. > > CPPC is described in the ACPI spec [1]. RISC-V FFH spec required to > enable this, is available at [2]. > > [1] - https://uefi.org/specs/ACPI/6.5/08_Processor_Configuration_and_Control.html#collaborative-processor-performance-control > [2] - https://github.com/riscv-non-isa/riscv-acpi-ffh/releases/download/v1.0.0/riscv-ffh.pdf > > The series is based on the LPI support series. > Based-on: 20240118062930.245937-1-sunilvl@xxxxxxxxxxxxxxxx > (https://lore.kernel.org/lkml/20240118062930.245937-1-sunilvl@xxxxxxxxxxxxxxxx/) > > Sunil V L (3): > ACPI: RISC-V: Add CPPC driver > cpufreq: Move CPPC configs to common Kconfig and add RISC-V > RISC-V: defconfig: Enable CONFIG_ACPI_CPPC_CPUFREQ > > arch/riscv/configs/defconfig | 1 + > drivers/acpi/riscv/Makefile | 1 + > drivers/acpi/riscv/cppc.c | 157 +++++++++++++++++++++++++++++++++++ > drivers/cpufreq/Kconfig | 29 +++++++ > drivers/cpufreq/Kconfig.arm | 26 ------ > 5 files changed, 188 insertions(+), 26 deletions(-) > create mode 100644 drivers/acpi/riscv/cppc.c > > -- This is fine with me, so Acked-by: Rafael J. Wysocki <rafael@xxxxxxxxxx> and it would be good to ask Viresh (who maintains the CPPC cpufreq driver) for an ACK. Thanks!