diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c
index 2ec7725..a9bb140 100644
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -753,6 +753,7 @@
 	},
 	{
 		.name = "ab3100-regulators",
+		.of_compatible = "stericsson,ab3100-regulators",
 		.id = -1,
 	},
 	{
diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c
index 740735d..be1e6ad 100644
--- a/drivers/regulator/ab3100.c
+++ b/drivers/regulator/ab3100.c
@@ -17,6 +17,8 @@
 #include <linux/regulator/driver.h>
 #include <linux/mfd/ab3100.h>
 #include <linux/mfd/abx500.h>
+#include <linux/of.h>
+#include <linux/regulator/of_regulator.h>
 
 /* LDO registers and some handy masking definitions for AB3100 */
 #define AB3100_LDO_A		0x40
@@ -345,7 +347,11 @@
 {
 	struct ab3100_regulator *abreg = rdev_get_drvdata(reg);
 
-	return abreg->plfdata->external_voltage;
+	if (abreg->plfdata)
+		return abreg->plfdata->external_voltage;
+	else
+		/* TODO: encode external voltage into device tree */
+		return 0;
 }
 
 static struct regulator_ops regulator_ops_fixed = {
@@ -490,6 +496,8 @@
 
 static int ab3100_regulator_register(struct platform_device *pdev,
 				     struct ab3100_platform_data *plfdata,
+				     struct regulator_init_data *init_data,
+				     struct device_node *np,
 				     int id)
 {
 	struct regulator_desc *desc;
@@ -518,9 +526,11 @@
 	 */
 	reg->dev = &pdev->dev;
 	if (plfdata) {
-		/* This will be replaced by device tree data */
 		reg->plfdata = plfdata;
 		config.init_data = &plfdata->reg_constraints[i];
+	} else if (np) {
+		config.of_node = np;
+		config.init_data = init_data;
 	}
 	config.dev = &pdev->dev;
 	config.driver_data = reg;
@@ -540,15 +550,103 @@
 	return 0;
 }
 
+static struct of_regulator_match ab3100_regulator_matches[] = {
+	{ .name = "ab3100_ldo_a", .driver_data = (void *) AB3100_LDO_A, },
+	{ .name = "ab3100_ldo_c", .driver_data = (void *) AB3100_LDO_C, },
+	{ .name = "ab3100_ldo_d", .driver_data = (void *) AB3100_LDO_D, },
+	{ .name = "ab3100_ldo_e", .driver_data = (void *) AB3100_LDO_E, },
+	{ .name = "ab3100_ldo_f", .driver_data = (void *) AB3100_LDO_F },
+	{ .name = "ab3100_ldo_g", .driver_data = (void *) AB3100_LDO_G },
+	{ .name = "ab3100_ldo_h", .driver_data = (void *) AB3100_LDO_H },
+	{ .name = "ab3100_ldo_k", .driver_data = (void *) AB3100_LDO_K },
+	{ .name = "ab3100_ext", .driver_data = (void *) AB3100_LDO_EXT },
+	{ .name = "ab3100_buck", .driver_data = (void *) AB3100_BUCK },
+};
+
 /*
- * NOTE: the following functions are regulators pluralis - it is the
- * binding to the AB3100 core driver and the parent platform device
- * for all the different regulators.
+ * Initial settings of ab3100 registers.
+ * Common for below LDO regulator settings are that
+ * bit 7-5 controls voltage. Bit 4 turns regulator ON(1) or OFF(0).
+ * Bit 3-2 controls sleep enable and bit 1-0 controls sleep mode.
  */
+/* LDO_A 0x16: 2.75V, ON, SLEEP_A, SLEEP OFF GND */
+#define LDO_A_SETTING		0x16
+/* LDO_C 0x10: 2.65V, ON, SLEEP_A or B, SLEEP full power */
+#define LDO_C_SETTING		0x10
+/* LDO_D 0x10: 2.65V, ON, sleep mode not used */
+#define LDO_D_SETTING		0x10
+/* LDO_E 0x10: 1.8V, ON, SLEEP_A or B, SLEEP full power */
+#define LDO_E_SETTING		0x10
+/* LDO_E SLEEP 0x00: 1.8V, not used, SLEEP_A or B, not used */
+#define LDO_E_SLEEP_SETTING	0x00
+/* LDO_F 0xD0: 2.5V, ON, SLEEP_A or B, SLEEP full power */
+#define LDO_F_SETTING		0xD0
+/* LDO_G 0x00: 2.85V, OFF, SLEEP_A or B, SLEEP full power */
+#define LDO_G_SETTING		0x00
+/* LDO_H 0x18: 2.75V, ON, SLEEP_B, SLEEP full power */
+#define LDO_H_SETTING		0x18
+/* LDO_K 0x00: 2.75V, OFF, SLEEP_A or B, SLEEP full power */
+#define LDO_K_SETTING		0x00
+/* LDO_EXT 0x00: Voltage not set, OFF, not used, not used */
+#define LDO_EXT_SETTING		0x00
+/* BUCK 0x7D: 1.2V, ON, SLEEP_A and B, SLEEP low power */
+#define BUCK_SETTING	0x7D
+/* BUCK SLEEP 0xAC: 1.05V, Not used, SLEEP_A and B, Not used */
+#define BUCK_SLEEP_SETTING	0xAC
+
+static const u8 ab3100_reg_initvals[] = {
+	LDO_A_SETTING,
+	LDO_C_SETTING,
+	LDO_E_SETTING,
+	LDO_E_SLEEP_SETTING,
+	LDO_F_SETTING,
+	LDO_G_SETTING,
+	LDO_H_SETTING,
+	LDO_K_SETTING,
+	LDO_EXT_SETTING,
+	BUCK_SETTING,
+	BUCK_SLEEP_SETTING,
+	LDO_D_SETTING,
+};
+
+static int
+ab3100_regulator_of_probe(struct platform_device *pdev, struct device_node *np)
+{
+	int err, i;
+
+	/*
+	 * Set up the regulator registers, as was previously done with
+	 * platform data.
+	 */
+	/* Set up regulators */
+	for (i = 0; i < ARRAY_SIZE(ab3100_reg_init_order); i++) {
+		err = abx500_set_register_interruptible(&pdev->dev, 0,
+					ab3100_reg_init_order[i],
+					ab3100_reg_initvals[i]);
+		if (err) {
+			dev_err(&pdev->dev, "regulator initialization failed with error %d\n",
+				err);
+			return err;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(ab3100_regulator_matches); i++) {
+		err = ab3100_regulator_register(
+			pdev, NULL, ab3100_regulator_matches[i].init_data,
+			ab3100_regulator_matches[i].of_node,
+			(int) ab3100_regulator_matches[i].driver_data);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
 
 static int ab3100_regulators_probe(struct platform_device *pdev)
 {
 	struct ab3100_platform_data *plfdata = pdev->dev.platform_data;
+	struct device_node *np = pdev->dev.of_node;
 	int err = 0;
 	u8 data;
 	int i;
@@ -567,6 +665,18 @@
 		dev_notice(&pdev->dev,
 			   "chip is in inactive mode (Cold start)\n");
 
+	if (np) {
+		err = of_regulator_match(&pdev->dev, np,
+					 ab3100_regulator_matches,
+					 ARRAY_SIZE(ab3100_regulator_matches));
+		if (err < 0) {
+			dev_err(&pdev->dev,
+				"Error parsing regulator init data: %d\n", err);
+			return err;
+		}
+		return ab3100_regulator_of_probe(pdev, np);
+	}
+
 	/* Set up regulators */
 	for (i = 0; i < ARRAY_SIZE(ab3100_reg_init_order); i++) {
 		err = abx500_set_register_interruptible(&pdev->dev, 0,
@@ -583,7 +693,8 @@
 	for (i = 0; i < AB3100_NUM_REGULATORS; i++) {
 		struct regulator_desc *desc = &ab3100_regulator_desc[i];
 
-		err = ab3100_regulator_register(pdev, plfdata, desc->id);
+		err = ab3100_regulator_register(pdev, plfdata, NULL, NULL,
+						desc->id);
 		if (err)
 			return err;
 	}