ARM: tegra: thermal: fix therm_est_activ polling

During bootup, deadlock happens with "thermal_list_lock" while trying to
finding zones for sub_devs. This change fixes the deadlock issue and
also removes zone lookup which happens on every temperature reading.

Bug 1415692

Change-Id: I13a81de7ef9051e8d7a0fe0f2c59febdea0fa1d5
Signed-off-by: Hyungwoo Yang <hyungwooy@nvidia.com>
Reviewed-on: http://git-master/r/361188

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/therm_est.h b/include/linux/therm_est.h
index 7526aa9b7..b89ca44cb 100644
--- a/include/linux/therm_est.h
+++ b/include/linux/therm_est.h
@@ -28,6 +28,7 @@
 
 struct therm_est_subdevice {
         void *dev_data;
+        struct thermal_zone_device *sub_thz;
         long coeffs[HIST_LEN];
         long hist[HIST_LEN];
 };