Subject: [PATCH v2 net-next 3/7] net: mvpp2: use .mac_select_pcs() interface

From: "Russell King (Oracle)" <[email-masked]>
Date: Wed, 15 Dec 2021 15:34:25 +0000

Use the mac_select_pcs() method to choose between the GMAC and XLG
PCS implementations.

Signed-off-by: Russell King (Oracle) <[email-masked]>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2.h    |  3 +-
 .../net/ethernet/marvell/mvpp2/mvpp2_main.c   | 75 ++++++++++---------
 2 files changed, 42 insertions(+), 36 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
index cf8acabb90ac..ad73a488fc5f 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
@@ -1239,7 +1239,8 @@ struct mvpp2_port {
 	phy_interface_t phy_interface;
 	struct phylink *phylink;
 	struct phylink_config phylink_config;
-	struct phylink_pcs phylink_pcs;
+	struct phylink_pcs pcs_gmac;
+	struct phylink_pcs pcs_xlg;
 	struct phy *comphy;
 
 	struct mvpp2_bm_pool *pool_long;
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 8e5820d12362..f5e10fe7812b 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -6118,15 +6118,20 @@ static struct mvpp2_port *mvpp2_phylink_to_port(struct phylink_config *config)
 	return container_of(config, struct mvpp2_port, phylink_config);
 }
 
-static struct mvpp2_port *mvpp2_pcs_to_port(struct phylink_pcs *pcs)
+static struct mvpp2_port *mvpp2_pcs_xlg_to_port(struct phylink_pcs *pcs)
 {
-	return container_of(pcs, struct mvpp2_port, phylink_pcs);
+	return container_of(pcs, struct mvpp2_port, pcs_xlg);
+}
+
+static struct mvpp2_port *mvpp2_pcs_gmac_to_port(struct phylink_pcs *pcs)
+{
+	return container_of(pcs, struct mvpp2_port, pcs_gmac);
 }
 
 static void mvpp2_xlg_pcs_get_state(struct phylink_pcs *pcs,
 				    struct phylink_link_state *state)
 {
-	struct mvpp2_port *port = mvpp2_pcs_to_port(pcs);
+	struct mvpp2_port *port = mvpp2_pcs_xlg_to_port(pcs);
 	u32 val;
 
 	if (port->phy_interface == PHY_INTERFACE_MODE_5GBASER)
@@ -6164,7 +6169,7 @@ static const struct phylink_pcs_ops mvpp2_phylink_xlg_pcs_ops = {
 static void mvpp2_gmac_pcs_get_state(struct phylink_pcs *pcs,
 				     struct phylink_link_state *state)
 {
-	struct mvpp2_port *port = mvpp2_pcs_to_port(pcs);
+	struct mvpp2_port *port = mvpp2_pcs_gmac_to_port(pcs);
 	u32 val;
 
 	val = readl(port->base + MVPP2_GMAC_STATUS0);
@@ -6201,7 +6206,7 @@ static int mvpp2_gmac_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
 				 const unsigned long *advertising,
 				 bool permit_pause_to_mac)
 {
-	struct mvpp2_port *port = mvpp2_pcs_to_port(pcs);
+	struct mvpp2_port *port = mvpp2_pcs_gmac_to_port(pcs);
 	u32 mask, val, an, old_an, changed;
 
 	mask = MVPP2_GMAC_IN_BAND_AUTONEG_BYPASS |
@@ -6255,7 +6260,7 @@ static int mvpp2_gmac_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
 
 static void mvpp2_gmac_pcs_an_restart(struct phylink_pcs *pcs)
 {
-	struct mvpp2_port *port = mvpp2_pcs_to_port(pcs);
+	struct mvpp2_port *port = mvpp2_pcs_gmac_to_port(pcs);
 	u32 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
 
 	writel(val | MVPP2_GMAC_IN_BAND_RESTART_AN,
@@ -6368,8 +6373,23 @@ static void mvpp2_gmac_config(struct mvpp2_port *port, unsigned int mode,
 		writel(ctrl4, port->base + MVPP22_GMAC_CTRL_4_REG);
 }
 
-static int mvpp2__mac_prepare(struct phylink_config *config, unsigned int mode,
-			      phy_interface_t interface)
+static struct phylink_pcs *mvpp2_select_pcs(struct phylink_config *config,
+					    phy_interface_t interface)
+{
+	struct mvpp2_port *port = mvpp2_phylink_to_port(config);
+
+	/* Select the appropriate PCS operations depending on the
+	 * configured interface mode. We will only switch to a mode
+	 * that the validate() checks have already passed.
+	 */
+	if (mvpp2_is_xlg(interface))
+		return &port->pcs_xlg;
+	else
+		return &port->pcs_gmac;
+}
+
+static int mvpp2_mac_prepare(struct phylink_config *config, unsigned int mode,
+			     phy_interface_t interface)
 {
 	struct mvpp2_port *port = mvpp2_phylink_to_port(config);
 
@@ -6418,31 +6438,9 @@ static int mvpp2__mac_prepare(struct phylink_config *config, unsigned int mode,
 		}
 	}
 
-	/* Select the appropriate PCS operations depending on the
-	 * configured interface mode. We will only switch to a mode
-	 * that the validate() checks have already passed.
-	 */
-	if (mvpp2_is_xlg(interface))
-		port->phylink_pcs.ops = &mvpp2_phylink_xlg_pcs_ops;
-	else
-		port->phylink_pcs.ops = &mvpp2_phylink_gmac_pcs_ops;
-
 	return 0;
 }
 
-static int mvpp2_mac_prepare(struct phylink_config *config, unsigned int mode,
-			     phy_interface_t interface)
-{
-	struct mvpp2_port *port = mvpp2_phylink_to_port(config);
-	int ret;
-
-	ret = mvpp2__mac_prepare(config, mode, interface);
-	if (ret == 0)
-		phylink_set_pcs(port->phylink, &port->phylink_pcs);
-
-	return ret;
-}
-
 static void mvpp2_mac_config(struct phylink_config *config, unsigned int mode,
 			     const struct phylink_link_state *state)
 {
@@ -6614,6 +6612,7 @@ static void mvpp2_mac_link_down(struct phylink_config *config,
 
 static const struct phylink_mac_ops mvpp2_phylink_ops = {
 	.validate = mvpp2_phylink_validate,
+	.mac_select_pcs = mvpp2_select_pcs,
 	.mac_prepare = mvpp2_mac_prepare,
 	.mac_config = mvpp2_mac_config,
 	.mac_finish = mvpp2_mac_finish,
@@ -6631,12 +6630,15 @@ static void mvpp2_acpi_start(struct mvpp2_port *port)
 	struct phylink_link_state state = {
 		.interface = port->phy_interface,
 	};
-	mvpp2__mac_prepare(&port->phylink_config, MLO_AN_INBAND,
-			   port->phy_interface);
+	struct phylink_pcs *pcs;
+
+	pcs = mvpp2_select_pcs(&port->phylink_config, port->phy_interface);
+
+	mvpp2_mac_prepare(&port->phylink_config, MLO_AN_INBAND,
+			  port->phy_interface);
 	mvpp2_mac_config(&port->phylink_config, MLO_AN_INBAND, &state);
-	port->phylink_pcs.ops->pcs_config(&port->phylink_pcs, MLO_AN_INBAND,
-					  port->phy_interface,
-					  state.advertising, false);
+	pcs->ops->pcs_config(pcs, MLO_AN_INBAND, port->phy_interface,
+			     state.advertising, false);
 	mvpp2_mac_finish(&port->phylink_config, MLO_AN_INBAND,
 			 port->phy_interface);
 	mvpp2_mac_link_up(&port->phylink_config, NULL,
@@ -6944,6 +6946,9 @@ static int mvpp2_port_probe(struct platform_device *pdev,
 				  port->phylink_config.supported_interfaces);
 		}
 
+		port->pcs_gmac.ops = &mvpp2_phylink_gmac_pcs_ops;
+		port->pcs_xlg.ops = &mvpp2_phylink_xlg_pcs_ops;
+
 		phylink = phylink_create(&port->phylink_config, port_fwnode,
 					 phy_mode, &mvpp2_phylink_ops);
 		if (IS_ERR(phylink)) {
-- 
2.30.2