diff --git a/drivers/gpio/gpio-vx855.c b/drivers/gpio/gpio-vx855.c
index ef5aabd..2c300c9 100644
--- a/drivers/gpio/gpio-vx855.c
+++ b/drivers/gpio/gpio-vx855.c
@@ -201,7 +201,8 @@ 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_gpio_setup(struct vx855_gpio *vg,
+				 struct platform_device *pdev)
 {
 	struct gpio_chip *c = &vg->gpio;
 
@@ -216,6 +217,10 @@ static void vx855gpio_gpio_setup(struct vx855_gpio *vg)
 	c->ngpio = NR_VX855_GP;
 	c->can_sleep = 0;
 	c->names = vx855gpio_names;
+
+#ifdef CONFIG_OF_GPIO
+	c->of_node = pdev->dev.of_node;
+#endif
 }
 
 /* This platform device is ordinarily registered by the vx855 mfd driver */
@@ -264,7 +269,7 @@ 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/mfd-core.c b/drivers/mfd/mfd-core.c
index 0902523..7d22dcd 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -87,6 +87,7 @@ static int mfd_add_device(struct device *parent, int id,
 		goto fail_device;
 
 	pdev->dev.parent = parent;
+	pdev->dev.of_node = cell->of_node;
 
 	if (cell->pdata_size) {
 		ret = platform_device_add_data(pdev,
diff --git a/drivers/mfd/vx855.c b/drivers/mfd/vx855.c
index d698703..d223840 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 */
@@ -72,6 +73,27 @@ static struct mfd_cell vx855_cells[] = {
 	},
 };
 
+static __devinit void vx855_set_of_nodes(struct pci_dev *pdev)
+{
+#ifdef CONFIG_OF
+	struct device_node *isa_node;
+	struct device_node *child;
+
+	isa_node = of_find_compatible_node(NULL, NULL, "via,vx855-isa");
+	pdev->dev.of_node = isa_node;
+
+	if (!isa_node)
+		return;
+
+	for_each_child_of_node(isa_node, child) {
+		if (of_device_is_compatible(child, "via,vx855-gpio")) {
+			vx855_cells[0].of_node = child;
+			break;
+		}
+	}
+#endif
+}
+
 static __devinit int vx855_probe(struct pci_dev *pdev,
 				 const struct pci_device_id *id)
 {
@@ -90,6 +112,8 @@ static __devinit int vx855_probe(struct pci_dev *pdev,
 		goto out;
 	}
 
+	vx855_set_of_nodes(pdev);
+
 	/* mask out the lowest seven bits, as they are always zero, but
 	 * hardware returns them as 0x01 */
 	gpio_io_offset &= 0xff80;
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index 4e76163..9b836f9 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -15,6 +15,7 @@
 #define MFD_CORE_H
 
 #include <linux/platform_device.h>
+#include <linux/of.h>
 
 /*
  * This struct describes the MFD part ("cell").
@@ -37,6 +38,9 @@ struct mfd_cell {
 	void			*platform_data;
 	size_t			pdata_size;
 
+	/* association with device tree node (optional) */
+	struct device_node	*of_node;
+
 	/*
 	 * These resources can be specified relative to the parent device.
 	 * For accessing hardware you should use resources from the platform dev