net: phy: mscc: read 'vsc8531,vddmac' as an u32

In the DT binding, it is specified nowhere that 'vsc8531,vddmac' is an
u16, even though it's read as an u16 in the driver.

Let's update the driver to take into consideration that the
'vsc8531,vddmac' property is of the default type u32.
Signed-off-by: NQuentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/phy/mscc.c

@@ -128,7 +128,7 @@ struct vsc8531_private {
 
 #ifdef CONFIG_OF_MDIO
 struct vsc8531_edge_rate_table {
-	u16 vddmac;
+	u32 vddmac;
 	u8 slowdown[8];
 };
 
@@ -387,7 +387,7 @@ static void vsc85xx_wol_get(struct phy_device *phydev,
 static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
 {
 	u8 sd;
-	u16 vdd;
+	u32 vdd;
 	int rc, i, j;
 	struct device *dev = &phydev->mdio.dev;
 	struct device_node *of_node = dev->of_node;
@@ -396,7 +396,7 @@ static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
 	if (!of_node)
 		return -ENODEV;
 
-	rc = of_property_read_u16(of_node, "vsc8531,vddmac", &vdd);
+	rc = of_property_read_u32(of_node, "vsc8531,vddmac", &vdd);
 	if (rc != 0)
 		vdd = MSCC_VDDMAC_3300;