From: Eduardo Valentin <eduardo.valentin@ti.com>
Date: Wed, 29 May 2013 21:37:00 +0000 (+0000)
Subject: thermal: consider emul_temperature while computing trend
X-Git-Tag: submit/tizen/20141121.110247~2938
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=65f5fedb176d47fcc5cda26529ce2f8b10ff5075;p=platform%2Fkernel%2Flinux-3.10.git

thermal: consider emul_temperature while computing trend

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>
---

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index cd9faa8..8f4be55 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -157,7 +157,8 @@ 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)