linux-kernel - [PATCH net] net: phy: mediatek: remove PHY mode check on MT7531

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Message-Id: <20220209143948.445823-1-dqfext@gmail.com>
Date:   Wed,  9 Feb 2022 22:39:47 +0800
From:   DENG Qingfang <dqfext@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Cc:     Arınç ÜNAL <arinc.unal@...nc9.com>,
        Hauke Mehrtens <hauke@...ke-m.de>
Subject: [PATCH net] net: phy: mediatek: remove PHY mode check on MT7531

The function mt7531_phy_mode_supported in the DSA driver set supported
mode to PHY_INTERFACE_MODE_GMII instead of PHY_INTERFACE_MODE_INTERNAL
for the internal PHY, so this check breaks the PHY initialization:

mt7530 mdio-bus:00 wan (uninitialized): failed to connect to PHY: -EINVAL

Remove the check to make it work again.

Reported-by: Hauke Mehrtens <hauke@...ke-m.de>
Fixes: e40d2cca0189 ("net: phy: add MediaTek Gigabit Ethernet PHY driver")
Signed-off-by: DENG Qingfang <dqfext@...il.com>
---
 drivers/net/phy/mediatek-ge.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/phy/mediatek-ge.c b/drivers/net/phy/mediatek-ge.c
index b7a5ae20edd5..68ee434f9dea 100644
--- a/drivers/net/phy/mediatek-ge.c
+++ b/drivers/net/phy/mediatek-ge.c
@@ -55,9 +55,6 @@ static int mt7530_phy_config_init(struct phy_device *phydev)
 
 static int mt7531_phy_config_init(struct phy_device *phydev)
 {
-	if (phydev->interface != PHY_INTERFACE_MODE_INTERNAL)
-		return -EINVAL;
-
 	mtk_gephy_config_init(phydev);
 
 	/* PHY link down power saving enable */
-- 
2.25.1