openwrtv4/target/linux/mediatek/patches-4.9/0001-NET-multi-phy-support.patch

From 1e021917e634b173d466bf0dd3d2ae84e51a77ff Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 27 Jul 2014 09:38:50 +0100
Subject: [PATCH 001/102] NET: multi phy support

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/net/phy/phy.c |    9 ++++++---
 include/linux/phy.h   |    1 +
 2 files changed, 7 insertions(+), 3 deletions(-)

--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -890,7 +890,8 @@ void phy_state_machine(struct work_struc
 		/* If the link is down, give up on negotiation for now */
 		if (!phydev->link) {
 			phydev->state = PHY_NOLINK;
-			netif_carrier_off(phydev->attached_dev);
+			if (!phydev->no_auto_carrier_off)
+				netif_carrier_off(phydev->attached_dev);
 			phydev->adjust_link(phydev->attached_dev);
 			break;
 		}
@@ -973,7 +974,8 @@ void phy_state_machine(struct work_struc
 			netif_carrier_on(phydev->attached_dev);
 		} else {
 			phydev->state = PHY_NOLINK;
-			netif_carrier_off(phydev->attached_dev);
+			if (!phydev->no_auto_carrier_off)
+				netif_carrier_off(phydev->attached_dev);
 		}
 
 		phydev->adjust_link(phydev->attached_dev);
@@ -985,7 +987,8 @@ void phy_state_machine(struct work_struc
 	case PHY_HALTED:
 		if (phydev->link) {
 			phydev->link = 0;
-			netif_carrier_off(phydev->attached_dev);
+			if (!phydev->no_auto_carrier_off)
+				netif_carrier_off(phydev->attached_dev);
 			phydev->adjust_link(phydev->attached_dev);
 			do_suspend = true;
 		}
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -377,6 +377,7 @@ struct phy_device {
 	bool is_pseudo_fixed_link;
 	bool has_fixups;
 	bool suspended;
+	bool no_auto_carrier_off;
 
 	enum phy_state state;