cpuidle: Invert CPUIDLE_FLAG_TIME_VALID logic

The only place where the time is invalid is when the ACPI_CSTATE_FFH entry
method is not set. Otherwise for all the drivers, the time can be correctly
measured.

Instead of duplicating the CPUIDLE_FLAG_TIME_VALID flag in all the drivers
for all the states, just invert the logic by replacing it by the flag
CPUIDLE_FLAG_TIME_INVALID, hence we can set this flag only for the acpi idle
driver, remove the former flag from all the drivers and invert the logic with
this flag in the different governor.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/cpuidle/cpuidle-cps.c b/drivers/cpuidle/cpuidle-cps.c
index fc7b62720deb..1adb6980b707 100644
--- a/drivers/cpuidle/cpuidle-cps.c
+++ b/drivers/cpuidle/cpuidle-cps.c
@@ -79,7 +79,6 @@ static struct cpuidle_driver cps_driver = {
                         .enter  = cps_nc_enter,
                         .exit_latency           = 200,
                         .target_residency       = 450,
-                        .flags  = CPUIDLE_FLAG_TIME_VALID,
                         .name   = "nc-wait",
                         .desc   = "non-coherent MIPS wait",
                 },
@@ -87,8 +86,7 @@ static struct cpuidle_driver cps_driver = {
                         .enter  = cps_nc_enter,
                         .exit_latency           = 300,
                         .target_residency       = 700,
-                        .flags  = CPUIDLE_FLAG_TIME_VALID |
-                                  CPUIDLE_FLAG_TIMER_STOP,
+                        .flags  = CPUIDLE_FLAG_TIMER_STOP,
                         .name   = "clock-gated",
                         .desc   = "core clock gated",
                 },
@@ -96,8 +94,7 @@ static struct cpuidle_driver cps_driver = {
                         .enter  = cps_nc_enter,
                         .exit_latency           = 600,
                         .target_residency       = 1000,
-                        .flags  = CPUIDLE_FLAG_TIME_VALID |
-                                  CPUIDLE_FLAG_TIMER_STOP,
+                        .flags  = CPUIDLE_FLAG_TIMER_STOP,
                         .name   = "power-gated",
                         .desc   = "core power gated",
                 },