diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 8803e693fe68..2f3b4ff5b9d1 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -372,6 +372,7 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 	int i;
 	int ret = -ENODEV;
 	int idle = IDLE_INTERVAL;
+	u32 enr_bits = 0;
 
 	common = devm_kzalloc(dev, sizeof(*common), GFP_KERNEL);
 	if (!common)
@@ -408,9 +409,6 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 		if (IS_ERR(common->base))
 			return PTR_ERR(common->base);
 
-		/* enable temperature comparation */
-		rcar_thermal_common_write(common, ENR, 0x00030303);
-
 		idle = 0; /* polling delay is not needed */
 	}
 
@@ -452,8 +450,15 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 			rcar_thermal_irq_enable(priv);
 
 		list_move_tail(&priv->list, &common->head);
+
+		/* update ENR bits */
+		enr_bits |= 3 << (i * 8);
 	}
 
+	/* enable temperature comparation */
+	if (irq)
+		rcar_thermal_common_write(common, ENR, enr_bits);
+
 	platform_set_drvdata(pdev, common);
 
 	dev_info(dev, "%d sensor probed\n", i);