Mark the idle state as disabled using CPUIDLE_FLAG_OFF when idle-state-disabled property is present. Such idle states stays disabled and can be enabled using below command. echo N > /sys/devices/system/cpu/cpuX/cpuidle/stateX/disable Signed-off-by: Tushar Nimkar <quic_tnimkar@xxxxxxxxxxx> --- drivers/cpuidle/dt_idle_states.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/cpuidle/dt_idle_states.c b/drivers/cpuidle/dt_idle_states.c index 12fec92a85fd..3d50181512a3 100644 --- a/drivers/cpuidle/dt_idle_states.c +++ b/drivers/cpuidle/dt_idle_states.c @@ -79,6 +79,9 @@ static int init_state_node(struct cpuidle_state *idle_state, idle_state->flags = CPUIDLE_FLAG_RCU_IDLE; if (of_property_read_bool(state_node, "local-timer-stop")) idle_state->flags |= CPUIDLE_FLAG_TIMER_STOP; + + if (of_property_read_bool(state_node, "idle-state-disabled")) + idle_state->flags |= CPUIDLE_FLAG_OFF; /* * TODO: * replace with kstrdup and pointer assignment when name -- 2.17.1
