[DRIVER][PHY] realtek: Add LED configuration via device tree

drivers/net/phy/realtek.c

@@ -27,6 +27,8 @@
 #define RTL821x_EXT_PAGE_SELECT			0x1e
 #define RTL821x_PAGE_SELECT			0x1f
 
+#define RTL8211F_LCR				0x10
+#define RTL8211F_EEELCR				0x11	
 #define RTL8211F_PHYCR1				0x18
 #define RTL8211F_PHYCR2				0x19
 #define RTL8211F_INSR				0x1d
@@ -334,6 +336,7 @@ static int rtl8211f_config_init(struct phy_device *phydev)
 	struct rtl821x_priv *priv = phydev->priv;
 	struct device *dev = &phydev->mdio.dev;
 	u16 val_txdly, val_rxdly;
+	u32 reg_lcr, reg_eeelcr;
 	int ret;
 
 	ret = phy_modify_paged_changed(phydev, 0xa43, RTL8211F_PHYCR1,
@@ -408,6 +411,22 @@ static int rtl8211f_config_init(struct phy_device *phydev)
 		return ret;
 	}
 
+	// Configure LED Control Register if specified in device tree
+	if (!of_property_read_u32(dev->of_node, "realtek,lcr-conf", &reg_lcr)) {
+		dev_info(dev, "Setting LEDCR value to 0x%04x\n", reg_lcr);
+		phy_write(phydev, RTL821x_PAGE_SELECT, 0xd04);
+		phy_write(phydev, RTL8211F_LCR, reg_lcr);
+		phy_write(phydev, RTL821x_PAGE_SELECT, 0x0);
+	}
+
+	// Configure EEE LED Control Register if specified in device tree
+	if (!of_property_read_u32(dev->of_node, "realtek,eee-lcr-conf", &reg_eeelcr)) {
+		dev_info(dev, "Setting EEE LEDCR value to 0x%04x\n", reg_eeelcr);
+		phy_write(phydev, RTL821x_PAGE_SELECT, 0xd04);
+		phy_write(phydev, RTL8211F_EEELCR, reg_eeelcr);
+		phy_write(phydev, RTL821x_PAGE_SELECT, 0x0);
+	}
+
 	return genphy_soft_reset(phydev);
 }