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thermal: consider emul_temperature while computing trend

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In case emulated temperature is in use, using the trend
provided by driver layer can lead to bogus situation.
In this case, debugger user would set a temperature value,
but the trend would be from driver computation.

To avoid this situation, this patch changes the get_tz_trend()
to consider the emulated temperature whenever that is in use.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Eduardo Valentin 2013-05-29 21:37:00 +00:00 committed by Zhang Rui
parent 24c7a38172
commit 0c872507d8
1 changed files with 2 additions and 1 deletions
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3
drivers/thermal/thermal_core.c
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@ -155,7 +155,8 @@ int get_tz_trend(struct thermal_zone_device *tz, int trip)
{
enum thermal_trend trend;
if (!tz->ops->get_trend || tz->ops->get_trend(tz, trip, &trend)) {
if (tz->emul_temperature || !tz->ops->get_trend ||
tz->ops->get_trend(tz, trip, &trend)) {
if (tz->temperature > tz->last_temperature)
trend = THERMAL_TREND_RAISING;
else if (tz->temperature < tz->last_temperature)