drivers: thermal: ti-soc-thermal: fix trend computation
When interval delay is programmed to be 0, the trend will
not be computed. This patch changes the driver to use simple
difference, assuming interval of 1ms.
Reported-by: Ranganath Krishnan <ranganath@ti.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 9dfd471..d8ac102 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -1020,9 +1020,13 @@
/* Fetch the update interval */
ret = ti_bandgap_read_update_interval(bgp, id, &interval);
- if (ret || !interval)
+ if (ret)
goto unfreeze;
+ /* set interval to 1ms 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",
