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Subject[PATCH 2/3] PM / cpuidle: Make ladder governor use the "disabled" state flag
Date

For the mechanism introduced by commit cbc9ef0 (PM / Domains: Add
preliminary support for cpuidle, v2) to work with the ladder
governor, that governor should respect the "disabled" state flag
added by that commit. Change the ladder governor accordingly.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
drivers/cpuidle/governors/ladder.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

Index: linux/drivers/cpuidle/governors/ladder.c
===================================================================
--- linux.orig/drivers/cpuidle/governors/ladder.c
+++ linux/drivers/cpuidle/governors/ladder.c
@@ -88,6 +88,7 @@ static int ladder_select_state(struct cp

/* consider promotion */
if (last_idx < drv->state_count - 1 &&
+ !drv->states[last_idx + 1].disabled &&
!dev->states_usage[last_idx + 1].disable &&
last_residency > last_state->threshold.promotion_time &&
drv->states[last_idx + 1].exit_latency <= latency_req) {
@@ -101,7 +102,8 @@ static int ladder_select_state(struct cp

/* consider demotion */
if (last_idx > CPUIDLE_DRIVER_STATE_START &&
- (dev->states_usage[last_idx].disable ||
+ (drv->states[last_idx].disabled ||
+ dev->states_usage[last_idx].disable ||
drv->states[last_idx].exit_latency > latency_req)) {
int i;



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