drivers: thermal: tsens: Add __func__ identifier to debug statements

Printing the function name when enabling debugging makes logs easier to
read.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/18717de35f31098d3ebc12564c2767b6d54d37d8.1572526427.git.amit.kucheria@linaro.org
diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index 542a7f8..06c6bbd 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -127,7 +127,7 @@ static int tsens_probe(struct platform_device *pdev)
 		of_property_read_u32(np, "#qcom,sensors", &num_sensors);
 
 	if (num_sensors <= 0) {
-		dev_err(dev, "invalid number of sensors\n");
+		dev_err(dev, "%s: invalid number of sensors\n", __func__);
 		return -EINVAL;
 	}
 
@@ -156,7 +156,7 @@ static int tsens_probe(struct platform_device *pdev)
 
 	ret = priv->ops->init(priv);
 	if (ret < 0) {
-		dev_err(dev, "tsens init failed\n");
+		dev_err(dev, "%s: init failed\n", __func__);
 		return ret;
 	}
 
@@ -164,7 +164,7 @@ static int tsens_probe(struct platform_device *pdev)
 		ret = priv->ops->calibrate(priv);
 		if (ret < 0) {
 			if (ret != -EPROBE_DEFER)
-				dev_err(dev, "tsens calibration failed\n");
+				dev_err(dev, "%s: calibration failed\n", __func__);
 			return ret;
 		}
 	}