diff --git a/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt b/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt
index 1ef8228db73b..de6a706abcdb 100644
--- a/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt
+++ b/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt
@@ -5,10 +5,7 @@ host controllers (when controlling usb2/1.1 devices) available on STiH407 SoC fa
 
 Required properties:
 - compatible		: should be "st,stih407-usb2-phy"
-- reg			: contain the offset and length of the system configuration registers
-			  used as glue logic to control & parameter phy
-- reg-names		: the names of the system configuration registers in "reg", should be "param" and "reg"
-- st,syscfg		: sysconfig register to manage phy parameter at driver level
+- st,syscfg		: phandle of sysconfig bank plus integer array containing phyparam and phyctrl register offsets
 - resets		: list of phandle and reset specifier pairs. There should be two entries, one
 			  for the whole phy and one for the port
 - reset-names		: list of reset signal names. Should be "global" and "port"
@@ -19,11 +16,8 @@ Example:
 
 usb2_picophy0: usbpicophy@f8 {
 	compatible	= "st,stih407-usb2-phy";
-	reg		= <0xf8 0x04>,	/* syscfg 5062 */
-			  <0xf4 0x04>;	/* syscfg 5061 */
-	reg-names	= "param", "ctrl";
 	#phy-cells	= <0>;
-	st,syscfg	= <&syscfg_core>;
+	st,syscfg	= <&syscfg_core 0x100 0xf4>;
 	resets		= <&softreset STIH407_PICOPHY_SOFTRESET>,
 			  <&picophyreset STIH407_PICOPHY0_RESET>;
 	reset-names	= "global", "port";
diff --git a/drivers/phy/phy-stih407-usb.c b/drivers/phy/phy-stih407-usb.c
index 74f0fab3cd8a..1d5ae5f8ef69 100644
--- a/drivers/phy/phy-stih407-usb.c
+++ b/drivers/phy/phy-stih407-usb.c
@@ -22,6 +22,9 @@
 #include <linux/mfd/syscon.h>
 #include <linux/phy/phy.h>
 
+#define PHYPARAM_REG	1
+#define PHYCTRL_REG	2
+
 /* Default PHY_SEL and REFCLKSEL configuration */
 #define STIH407_USB_PICOPHY_CTRL_PORT_CONF	0x6
 #define STIH407_USB_PICOPHY_CTRL_PORT_MASK	0x1f
@@ -93,7 +96,7 @@ static int stih407_usb2_picophy_probe(struct platform_device *pdev)
 	struct device_node *np = dev->of_node;
 	struct phy_provider *phy_provider;
 	struct phy *phy;
-	struct resource *res;
+	int ret;
 
 	phy_dev = devm_kzalloc(dev, sizeof(*phy_dev), GFP_KERNEL);
 	if (!phy_dev)
@@ -123,19 +126,19 @@ static int stih407_usb2_picophy_probe(struct platform_device *pdev)
 		return PTR_ERR(phy_dev->regmap);
 	}
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ctrl");
-	if (!res) {
-		dev_err(dev, "No ctrl reg found\n");
-		return -ENXIO;
+	ret = of_property_read_u32_index(np, "st,syscfg", PHYPARAM_REG,
+					&phy_dev->param);
+	if (ret) {
+		dev_err(dev, "can't get phyparam offset (%d)\n", ret);
+		return ret;
 	}
-	phy_dev->ctrl = res->start;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "param");
-	if (!res) {
-		dev_err(dev, "No param reg found\n");
-		return -ENXIO;
+	ret = of_property_read_u32_index(np, "st,syscfg", PHYCTRL_REG,
+					&phy_dev->ctrl);
+	if (ret) {
+		dev_err(dev, "can't get phyctrl offset (%d)\n", ret);
+		return ret;
 	}
-	phy_dev->param = res->start;
 
 	phy = devm_phy_create(dev, NULL, &stih407_usb2_picophy_data);
 	if (IS_ERR(phy)) {