linux-kernel - [Patch net-next 09/13] net: dsa: microchip: ksz9477: separate phylink mode from switch register

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Date:   Wed, 22 Jun 2022 14:34:21 +0530
From:   Arun Ramadoss <arun.ramadoss@...rochip.com>
To:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     Woojung Huh <woojung.huh@...rochip.com>,
        <UNGLinuxDriver@...rochip.com>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "Russell King" <linux@...linux.org.uk>
Subject: [Patch net-next 09/13] net: dsa: microchip: ksz9477: separate phylink mode from switch register

As per 'commit 3506b2f42dff ("net: dsa: microchip: call
phy_remove_link_mode during probe")' phy_remove_link_mode is added in
the switch_register function after dsa_switch_register. In order to have
the common switch register function, moving this phylink validation to
phylink_get_caps validation hook.

Signed-off-by: Arun Ramadoss <arun.ramadoss@...rochip.com>
---
 drivers/net/dsa/microchip/ksz9477.c    | 31 +++++---------------------
 drivers/net/dsa/microchip/ksz_common.c |  2 +-
 2 files changed, 7 insertions(+), 26 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index e3989aef93f4..4fcc7923da4d 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -1059,8 +1059,11 @@ static void ksz9477_phy_errata_setup(struct ksz_device *dev, int port)
 static void ksz9477_get_caps(struct ksz_device *dev, int port,
 			     struct phylink_config *config)
 {
-	config->mac_capabilities = MAC_10 | MAC_100 | MAC_1000FD |
-				   MAC_ASYM_PAUSE | MAC_SYM_PAUSE;
+	config->mac_capabilities = MAC_10 | MAC_100 | MAC_ASYM_PAUSE |
+				   MAC_SYM_PAUSE;
+
+	if (dev->features & GBIT_SUPPORT)
+		config->mac_capabilities |= MAC_1000FD;
 }
 
 static void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port)
@@ -1381,29 +1384,7 @@ static const struct ksz_dev_ops ksz9477_dev_ops = {
 
 int ksz9477_switch_register(struct ksz_device *dev)
 {
-	int ret, i;
-	struct phy_device *phydev;
-
-	ret = ksz_switch_register(dev, &ksz9477_dev_ops);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < dev->phy_port_cnt; ++i) {
-		if (!dsa_is_user_port(dev->ds, i))
-			continue;
-
-		phydev = dsa_to_port(dev->ds, i)->slave->phydev;
-
-		/* The MAC actually cannot run in 1000 half-duplex mode. */
-		phy_remove_link_mode(phydev,
-				     ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
-
-		/* PHY does not support gigabit. */
-		if (!(dev->features & GBIT_SUPPORT))
-			phy_remove_link_mode(phydev,
-					     ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
-	}
-	return ret;
+	return ksz_switch_register(dev, &ksz9477_dev_ops);
 }
 EXPORT_SYMBOL(ksz9477_switch_register);
 
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 9ebeaba2c755..62d699a47589 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -1332,7 +1332,7 @@ int ksz_switch_register(struct ksz_device *dev,
 	/* Start the MIB timer. */
 	schedule_delayed_work(&dev->mib_read, 0);
 
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL(ksz_switch_register);
 
-- 
2.36.1