[PATCH 3/3] thermal: ti-soc-thermal: Ensure to compute thermal trend

[Ranganath Krishnan <ranganath@ti.com>]

Workaround to compute thermal trend even when update interval
is not set. This patch will ensure to compute the thermal trend
when bandgap counter delay is not set.

Signed-off-by: Ranganath Krishnan <ranganath@ti.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
---
 drivers/thermal/ti-soc-thermal/ti-bandgap.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 9dfd471..74c0e34 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -1020,9 +1020,13 @@ int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend)
 
 	/* Fetch the update interval */
 	ret = ti_bandgap_read_update_interval(bgp, id, &interval);
-	if (ret || !interval)
+	if (ret)
 		goto unfreeze;
 
+	/* Set the interval to 1 ms if bandgap counter delay is not set */
+	if (interval == 0)
+		interval = 1;
+
 	*trend = (t1 - t2) / interval;
 
 	dev_dbg(bgp->dev, "The temperatures are t1 = %d and t2 = %d and trend =%d\n",
-- 
1.7.9.5