netdev - [PATCH RFC net-next 3/6] net: dsa: sja1105: use .mac_select

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Message-Id: <E1nNGm6-00AOip-6r@rmk-PC.armlinux.org.uk>
Date:   Thu, 24 Feb 2022 16:15:26 +0000
From:   "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Marek Beh__n <kabel@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH RFC net-next 3/6] net: dsa: sja1105: use .mac_select_pcs()
 interface

Convert the PCS selection to use mac_select_pcs, which allows the PCS
to perform any validation it needs, and removes the need to set the PCS
in the mac_config() callback, delving into the higher DSA levels to do
so.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/dsa/sja1105/sja1105_main.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index e278bd86e3c6..b5c36f808df1 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -1358,18 +1358,16 @@ static int sja1105_adjust_port_config(struct sja1105_private *priv, int port,
 	return sja1105_clocking_setup_port(priv, port);
 }
 
-static void sja1105_mac_config(struct dsa_switch *ds, int port,
-			       unsigned int mode,
-			       const struct phylink_link_state *state)
+static struct phylink_pcs *
+sja1105_mac_select_pcs(struct dsa_switch *ds, int port, phy_interface_t iface)
 {
-	struct dsa_port *dp = dsa_to_port(ds, port);
 	struct sja1105_private *priv = ds->priv;
-	struct dw_xpcs *xpcs;
-
-	xpcs = priv->xpcs[port];
+	struct dw_xpcs *xpcs = priv->xpcs[port];
 
 	if (xpcs)
-		phylink_set_pcs(dp->pl, &xpcs->pcs);
+		return &xpcs->pcs;
+
+	return NULL;
 }
 
 static void sja1105_mac_link_down(struct dsa_switch *ds, int port,
@@ -3137,7 +3135,7 @@ static const struct dsa_switch_ops sja1105_switch_ops = {
 	.port_max_mtu		= sja1105_get_max_mtu,
 	.phylink_get_caps	= sja1105_phylink_get_caps,
 	.phylink_validate	= sja1105_phylink_validate,
-	.phylink_mac_config	= sja1105_mac_config,
+	.phylink_mac_select_pcs	= sja1105_mac_select_pcs,
 	.phylink_mac_link_up	= sja1105_mac_link_up,
 	.phylink_mac_link_down	= sja1105_mac_link_down,
 	.get_strings		= sja1105_get_strings,
-- 
2.30.2