diff --git a/drivers/nvmem/bcm-ocotp.c b/drivers/nvmem/bcm-ocotp.c
index a128c7f5e351..0c1fa0c4feb2 100644
--- a/drivers/nvmem/bcm-ocotp.c
+++ b/drivers/nvmem/bcm-ocotp.c
@@ -244,7 +244,6 @@ MODULE_DEVICE_TABLE(acpi, bcm_otpc_acpi_ids);
 static int bcm_otpc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct resource *res;
 	struct otpc_priv *priv;
 	struct nvmem_device *nvmem;
 	int err;
@@ -259,8 +258,7 @@ static int bcm_otpc_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	/* Get OTP base address register. */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	priv->base = devm_ioremap_resource(dev, res);
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(priv->base)) {
 		dev_err(dev, "unable to map I/O memory\n");
 		return PTR_ERR(priv->base);