thermal: tegra: therm_est: handle trip_update

Edit original commit to use 'thremal_zone_of_device_ops'.

Add trip_update notification callback and register the same
with the of-thermal

In the callback recalculate thermal threshold limits.

(cherry-picked from commit Ia7f3a85cab4cfb5dd5390dbcb783686ec3947262)
Signed-off-by: navneet kumar <navneetk@nvidia.com>
Reviewed-on: http://git-master/r/591811

Change-Id: Id64ee583d09340436e5049c17c4b2f8a091b3b96
Signed-off-by: Srikar Srimath Tirumala <srikars@nvidia.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/misc/therm_est.c b/drivers/misc/therm_est.c
index 95c87d2e9..32ddd7fac 100644
--- a/drivers/misc/therm_est.c
+++ b/drivers/misc/therm_est.c
@@ -182,6 +182,16 @@ static int therm_est_get_trend(void *of_data, long *trend)
         return 0;
 }
 
+static int therm_est_trip_update(void *of_data, int trip)
+{
+        struct therm_estimator *est = (struct therm_estimator *)of_data;
+
+        thermal_zone_device_update(est->thz);
+        therm_est_update_limits(est);
+
+        return 0;
+}
+
 static int therm_est_init_history(struct therm_estimator *est)
 {
         int i, j;
@@ -577,6 +587,7 @@ static struct therm_est_data *therm_est_get_pdata(struct device *dev)
 static struct thermal_zone_of_device_ops sops = {
         .get_temp = therm_est_get_temp,
         .get_trend = therm_est_get_trend,
+        .trip_update = therm_est_trip_update,
 };
 
 static int therm_est_probe(struct platform_device *pdev)