diff --git a/drivers/gpio/gpio-vx855.c b/drivers/gpio/gpio-vx855.c
index ef5aabd..fd24213 100644
--- a/drivers/gpio/gpio-vx855.c
+++ b/drivers/gpio/gpio-vx855.c
@@ -31,6 +31,7 @@
 #include <linux/platform_device.h>
 #include <linux/pci.h>
 #include <linux/io.h>
+#include <linux/of.h>
 
 #define MODULE_NAME "vx855_gpio"
 
@@ -201,7 +202,27 @@ static const char *vx855gpio_names[NR_VX855_GP] = {
 	"VX855_GPIO12", "VX855_GPIO13", "VX855_GPIO14"
 };
 
-static void vx855gpio_gpio_setup(struct vx855_gpio *vg)
+static void vx855gpio_set_of_node(struct platform_device *pdev,
+				  struct gpio_chip *c)
+{
+#ifdef CONFIG_OF
+	struct device_node *parent_node = pdev->dev.parent->of_node;
+	struct device_node *child;
+
+	if (!parent_node)
+		return;
+
+	for_each_child_of_node(parent_node, child) {
+		if (of_device_is_compatible(child, "via,vx855-gpio")) {
+			c->of_node = child;
+			break;
+		}
+	}
+#endif
+}
+
+static void vx855gpio_gpio_setup(struct vx855_gpio *vg,
+				 struct platform_device *pdev)
 {
 	struct gpio_chip *c = &vg->gpio;
 
@@ -216,6 +237,7 @@ static void vx855gpio_gpio_setup(struct vx855_gpio *vg)
 	c->ngpio = NR_VX855_GP;
 	c->can_sleep = 0;
 	c->names = vx855gpio_names;
+	vx855gpio_set_of_node(pdev, c);
 }
 
 /* This platform device is ordinarily registered by the vx855 mfd driver */
@@ -264,7 +286,7 @@ static __devinit int vx855gpio_probe(struct platform_device *pdev)
 	else
 		vg->gpo_reserved = true;
 
-	vx855gpio_gpio_setup(vg);
+	vx855gpio_gpio_setup(vg, pdev);
 
 	ret = gpiochip_add(&vg->gpio);
 	if (ret) {
diff --git a/drivers/mfd/vx855.c b/drivers/mfd/vx855.c
index d698703..aee9a5f 100644
--- a/drivers/mfd/vx855.c
+++ b/drivers/mfd/vx855.c
@@ -30,6 +30,7 @@
 #include <linux/platform_device.h>
 #include <linux/pci.h>
 #include <linux/mfd/core.h>
+#include <linux/of.h>
 
 /* offset into pci config space indicating the 16bit register containing
  * the power management IO space base */
@@ -90,6 +91,10 @@ static __devinit int vx855_probe(struct pci_dev *pdev,
 		goto out;
 	}
 
+#ifdef CONFIG_OF
+	pdev->dev.of_node = of_find_compatible_node(NULL, NULL, "via,vx855-isa");
+#endif
+
 	/* mask out the lowest seven bits, as they are always zero, but
 	 * hardware returns them as 0x01 */
 	gpio_io_offset &= 0xff80;