netdev - [PATCH 2/3] net: phy: select sensible mode for non-autoneg PHYs on startup

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Message-Id: <20171213173751.12722-2-l.stach@pengutronix.de>
Date:   Wed, 13 Dec 2017 18:37:50 +0100
From:   Lucas Stach <l.stach@...gutronix.de>
To:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     netdev@...r.kernel.org, kernel@...gutronix.de,
        patchwork-lst@...gutronix.de
Subject: [PATCH 2/3] net: phy: select sensible mode for non-autoneg PHYs on startup

Init speed and duplex to unknown, so phy_lookup_setting() knows that
it should select the mode only based on the PHY allowed link modes.

Signed-off-by: Lucas Stach <l.stach@...gutronix.de>
---
 drivers/net/phy/phy-core.c   | 5 +++++
 drivers/net/phy/phy_device.c | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/drivers/net/phy/phy-core.c b/drivers/net/phy/phy-core.c
index 21f75ae244b3..149a4bab1e6f 100644
--- a/drivers/net/phy/phy-core.c
+++ b/drivers/net/phy/phy-core.c
@@ -149,6 +149,11 @@ phy_lookup_setting(int speed, int duplex, const unsigned long *mask,
 	const struct phy_setting *p, *match = NULL, *last = NULL;
 	int i;
 
+	if (!exact && speed == SPEED_UNKNOWN)
+		speed = INT_MAX;
+	if (!exact && duplex == DUPLEX_UNKNOWN)
+		duplex = DUPLEX_FULL;
+
 	for (i = 0, p = settings; i < ARRAY_SIZE(settings); i++, p++) {
 		if (p->bit < maxbit && test_bit(p->bit, mask)) {
 			last = p;
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 8ef48b38d97b..35278282259a 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1785,6 +1785,8 @@ static int phy_probe(struct device *dev)
 	phydev->supported = phydrv->features;
 	of_set_phy_supported(phydev);
 	phydev->advertising = phydev->supported;
+	phydev->speed = SPEED_UNKNOWN;
+	phydev->duplex = DUPLEX_UNKNOWN;
 
 	/* Get the EEE modes we want to prohibit. We will ask
 	 * the PHY stop advertising these mode later on
-- 
2.11.0