thermal: rcar_thermal: Remove lock in rcar_thermal_get_current_temp()
With the ctemp value returned instead of cached in the private data
structure their is no need to take the lock when translating ctemp into
a temperature.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200310170029.1648996-4-niklas.soderlund+renesas@ragnatech.se
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 4a45b31..e0c1f24 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -254,24 +254,20 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv)
static int rcar_thermal_get_current_temp(struct rcar_thermal_priv *priv,
int *temp)
{
- int ctemp, tmp;
+ int ctemp;
ctemp = rcar_thermal_update_temp(priv);
if (ctemp < 0)
return ctemp;
- mutex_lock(&priv->lock);
- if (priv->chip->ctemp_bands == 1)
- tmp = MCELSIUS((ctemp * 5) - 65);
- else if (ctemp < 24)
- tmp = MCELSIUS(((ctemp * 55) - 720) / 10);
- else
- tmp = MCELSIUS((ctemp * 5) - 60);
- mutex_unlock(&priv->lock);
-
/* Guaranteed operating range is -45C to 125C. */
- *temp = tmp;
+ if (priv->chip->ctemp_bands == 1)
+ *temp = MCELSIUS((ctemp * 5) - 65);
+ else if (ctemp < 24)
+ *temp = MCELSIUS(((ctemp * 55) - 720) / 10);
+ else
+ *temp = MCELSIUS((ctemp * 5) - 60);
return 0;
}
