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| author | Thomas Gleixner <tglx@linutronix.de> | 2015-10-13 20:00:14 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-10-13 20:00:14 +0300 |
| commit | e50226b4b86755e65aef2129e94d952fee3df722 (patch) | |
| tree | d4dd925fc7f5c6fe46b647c8027911190595f014 /drivers/thermal/power_allocator.c | |
| parent | e9849777d0e27cdd2902805be51da73e7c79578c (diff) | |
| parent | 25cb62b76430a91cc6195f902e61c2cb84ade622 (diff) | |
| download | linux-e50226b4b86755e65aef2129e94d952fee3df722.tar.xz | |
Merge branch 'linus' into irq/core
Bring in upstream updates for patches which depend on them
Diffstat (limited to 'drivers/thermal/power_allocator.c')
| -rw-r--r-- | drivers/thermal/power_allocator.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/thermal/power_allocator.c b/drivers/thermal/power_allocator.c index 7ff96270c933..e570ff084add 100644 --- a/drivers/thermal/power_allocator.c +++ b/drivers/thermal/power_allocator.c @@ -144,6 +144,16 @@ static void estimate_pid_constants(struct thermal_zone_device *tz, switch_on_temp = 0; temperature_threshold = control_temp - switch_on_temp; + /* + * estimate_pid_constants() tries to find appropriate default + * values for thermal zones that don't provide them. If a + * system integrator has configured a thermal zone with two + * passive trip points at the same temperature, that person + * hasn't put any effort to set up the thermal zone properly + * so just give up. + */ + if (!temperature_threshold) + return; if (!tz->tzp->k_po || force) tz->tzp->k_po = int_to_frac(sustainable_power) / |