diff options
| -rw-r--r-- | drivers/cpuidle/cpuidle-powernv.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c index 12409a519cc5..45eaf06462ae 100644 --- a/drivers/cpuidle/cpuidle-powernv.c +++ b/drivers/cpuidle/cpuidle-powernv.c @@ -354,6 +354,7 @@ static int powernv_add_idle_states(void) for (i = 0; i < dt_idle_states; i++) { unsigned int exit_latency, target_residency; + bool stops_timebase = false; /* * If an idle state has exit latency beyond * POWERNV_THRESHOLD_LATENCY_NS then don't use it @@ -381,6 +382,9 @@ static int powernv_add_idle_states(void) } } + if (flags[i] & OPAL_PM_TIMEBASE_STOP) + stops_timebase = true; + /* * For nap and fastsleep, use default target_residency * values if f/w does not expose it. @@ -392,8 +396,7 @@ static int powernv_add_idle_states(void) add_powernv_state(nr_idle_states, "Nap", CPUIDLE_FLAG_NONE, nap_loop, target_residency, exit_latency, 0, 0); - } else if ((flags[i] & OPAL_PM_STOP_INST_FAST) && - !(flags[i] & OPAL_PM_TIMEBASE_STOP)) { + } else if (has_stop_states && !stops_timebase) { add_powernv_state(nr_idle_states, names[i], CPUIDLE_FLAG_NONE, stop_loop, target_residency, exit_latency, @@ -405,8 +408,8 @@ static int powernv_add_idle_states(void) * within this config dependency check. */ #ifdef CONFIG_TICK_ONESHOT - if (flags[i] & OPAL_PM_SLEEP_ENABLED || - flags[i] & OPAL_PM_SLEEP_ENABLED_ER1) { + else if (flags[i] & OPAL_PM_SLEEP_ENABLED || + flags[i] & OPAL_PM_SLEEP_ENABLED_ER1) { if (!rc) target_residency = 300000; /* Add FASTSLEEP state */ @@ -414,14 +417,15 @@ static int powernv_add_idle_states(void) CPUIDLE_FLAG_TIMER_STOP, fastsleep_loop, target_residency, exit_latency, 0, 0); - } else if ((flags[i] & OPAL_PM_STOP_INST_DEEP) && - (flags[i] & OPAL_PM_TIMEBASE_STOP)) { + } else if (has_stop_states && stops_timebase) { add_powernv_state(nr_idle_states, names[i], CPUIDLE_FLAG_TIMER_STOP, stop_loop, target_residency, exit_latency, psscr_val[i], psscr_mask[i]); } #endif + else + continue; nr_idle_states++; } out: |