thermal: rcar_gen3_thermal: Remove temperature bound

The hardware manual states that the operation of the sensor is not
guaranteed with temperatures above 125°C, not that the readings are
invalid. Remove the bound check and try to deliver temperature readings
even if we are outside the guaranteed operation range.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200117160554.3812787-3-niklas.soderlund+renesas@ragnatech.se

diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
index 1460cf9..72877bd 100644 (file)
--- a/drivers/thermal/rcar_gen3_thermal.c
+++ b/drivers/thermal/rcar_gen3_thermal.c
@@ -182,9 +182,7 @@ static int rcar_gen3_thermal_get_temp(void *devdata, int *temp)
                                tsc->coef.a2);
        mcelsius = FIXPT_TO_MCELSIUS(val);
 
-       /* Make sure we are inside specifications */
-       if ((mcelsius < MCELSIUS(-40)) || (mcelsius > MCELSIUS(125)))
-               return -EIO;
+       /* Guaranteed operating range is -40C to 125C. */
 
        /* Round value to device granularity setting */
        *temp = rcar_gen3_thermal_round(mcelsius);