diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c
index 9341e0e0eb55..998e8bcc06e1 100644
--- a/drivers/iio/adc/aspeed_adc.c
+++ b/drivers/iio/adc/aspeed_adc.c
@@ -202,6 +202,8 @@ static int aspeed_adc_set_trim_data(struct iio_dev *indio_dev)
 				((scu_otp) &
 				 (data->model_data->trim_locate->field)) >>
 				__ffs(data->model_data->trim_locate->field);
+			if (!trimming_val)
+				trimming_val = 0x8;
 		}
 		dev_dbg(data->dev,
 			"trimming val = %d, offset = %08x, fields = %08x\n",
@@ -563,12 +565,9 @@ static int aspeed_adc_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	if (of_find_property(data->dev->of_node, "aspeed,trim-data-valid",
-			     NULL)) {
-		ret = aspeed_adc_set_trim_data(indio_dev);
-		if (ret)
-			return ret;
-	}
+	ret = aspeed_adc_set_trim_data(indio_dev);
+	if (ret)
+		return ret;
 
 	if (of_find_property(data->dev->of_node, "aspeed,battery-sensing",
 			     NULL)) {