diff --git a/drivers/mfd/timberdale.c b/drivers/mfd/timberdale.c
index 60c122e9b39fa132ef9b1c96fff76a9962c2c9b4..faecbca6dba3dc0418ad0ad017b91e0a826daf0c 100644
--- a/drivers/mfd/timberdale.c
+++ b/drivers/mfd/timberdale.c
@@ -626,8 +626,7 @@ static const struct mfd_cell timberdale_cells_bar2[] = {
 static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr,
 	char *buf)
 {
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct timberdale_device *priv = pci_get_drvdata(pdev);
+	struct timberdale_device *priv = dev_get_drvdata(dev);
 
 	return sprintf(buf, "%d.%d.%d\n", priv->fw.major, priv->fw.minor,
 		priv->fw.config);