diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c
index 4a8a8ef..cf73a40 100644
--- a/drivers/pinctrl/pinctrl-mcp23s08.c
+++ b/drivers/pinctrl/pinctrl-mcp23s08.c
@@ -636,6 +636,14 @@
 		return err;
 	}
 
+	return 0;
+}
+
+static int mcp23s08_irqchip_setup(struct mcp23s08 *mcp)
+{
+	struct gpio_chip *chip = &mcp->chip;
+	int err;
+
 	err =  gpiochip_irqchip_add_nested(chip,
 					   &mcp23s08_irq_chip,
 					   0,
@@ -912,7 +920,7 @@
 	}
 
 	if (mcp->irq && mcp->irq_controller) {
-		ret = mcp23s08_irq_setup(mcp);
+		ret = mcp23s08_irqchip_setup(mcp);
 		if (ret)
 			goto fail;
 	}
@@ -944,6 +952,9 @@
 		goto fail;
 	}
 
+	if (mcp->irq)
+		ret = mcp23s08_irq_setup(mcp);
+
 fail:
 	if (ret < 0)
 		dev_dbg(dev, "can't setup chip %d, --> %d\n", addr, ret);