linux/drivers/cpuidle/Kconfig.riscv
Anup Patel 6abf32f1d9
cpuidle: Add RISC-V SBI CPU idle driver
The RISC-V SBI HSM extension provides HSM suspend call which can
be used by Linux RISC-V to enter platform specific low-power state.

This patch adds a CPU idle driver based on RISC-V SBI calls which
will populate idle states from device tree and use SBI calls to
entry these idle states.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Acked-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-03-10 09:29:51 -08:00

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# SPDX-License-Identifier: GPL-2.0-only
#
# RISC-V CPU Idle drivers
#
config RISCV_SBI_CPUIDLE
bool "RISC-V SBI CPU idle Driver"
depends on RISCV_SBI
select DT_IDLE_STATES
select CPU_IDLE_MULTIPLE_DRIVERS
select DT_IDLE_GENPD if PM_GENERIC_DOMAINS_OF
help
Select this option to enable RISC-V SBI firmware based CPU idle
driver for RISC-V systems. This drivers also supports hierarchical
DT based layout of the idle state.