net:phy:2711 Allow ethernet LED mode to be set via device tree

raspberrypi inclusion
category: feature
bugzilla: 50432

--------------------------------

Add device tree entries and code to allow the specification of
the lighting modes for the LED's on the ethernet connector.
Signed-off-by: NJames Hughes <james.hughes@raspberrypi.org>
Signed-off-by: NFang Yafen <yafen@iscas.ac.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/net/phy/broadcom.c

@@ -257,6 +257,9 @@ static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev)
 static int bcm54xx_config_init(struct phy_device *phydev)
 {
 	int reg, err, val;
+	u32 led_modes[] = {BCM_LED_MULTICOLOR_LINK_ACT,
+			   BCM_LED_MULTICOLOR_LINK_ACT};
+	struct device_node *np = phydev->mdio.dev.of_node;
 
 	reg = phy_read(phydev, MII_BCM54XX_ECR);
 	if (reg < 0)
@@ -305,6 +308,8 @@ static int bcm54xx_config_init(struct phy_device *phydev)
 
 	bcm54xx_phydsp_config(phydev);
 
+	of_property_read_u32_array(np, "led-modes", led_modes, 2);
+
 	/* Encode link speed into LED1 and LED3 pair (green/amber).
 	 * Also flash these two LEDs on activity. This means configuring
 	 * them for MULTICOLOR and encoding link/activity into them.
@@ -314,8 +319,8 @@ static int bcm54xx_config_init(struct phy_device *phydev)
 	bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1, val);
 
 	val = BCM_LED_MULTICOLOR_IN_PHASE |
-		BCM5482_SHD_LEDS1_LED1(BCM_LED_MULTICOLOR_LINK_ACT) |
-		BCM5482_SHD_LEDS1_LED3(BCM_LED_MULTICOLOR_LINK_ACT);
+		BCM5482_SHD_LEDS1_LED1(led_modes[0]) |
+		BCM5482_SHD_LEDS1_LED3(led_modes[1]);
 	bcm_phy_write_exp(phydev, BCM_EXP_MULTICOLOR, val);
 
 	return 0;