[PATCH net-next 11/15] net: phy: aquantia: call aqr_gen3_config_init() for AQR112 and AQR412(C)

From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: 2025-08-21 15:21:35
Also in: lkml
Subsystem: ethernet phy library, networking drivers, the rest · Maintainers: Andrew Lunn, Heiner Kallweit, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

The AQrate Gen3 PHYs are AQR111(C), AQR112(C), and their multi-port
variants, like AQR411(C), AQR412(C).

Currently, AQR112, AQR412 and AQR412C are Gen3 PHYs supported by the
driver which have no config_init() implementation. I have hardware and
documentation that confirms they are compatible with the operations done
in aqr_gen2_config_init(), a Gen2-level function.

This is needed as a preparation for reading cached registers in
aqr_gen2_read_status(), which is a function that these PHYs already call.
The initial reading is done from:

aqr_gen2_config_init()
-> aqr_gen2_fill_interface_modes()
   -> aqr_gen2_read_global_syscfg()

thus the need for them to also call aqr_gen2_config_init(), in order for
the cached register values to be available.

In expectation of Gen3-specific features, introduce aqr_gen3_config_init()
which calls aqr_gen2_config_init(). Also modify the AQR111 silicon
variants to call their generation-appropriate init function. No
functional change for these, hence the minor mention.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
 drivers/net/phy/aquantia/aquantia_main.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/aquantia/aquantia_main.c b/drivers/net/phy/aquantia/aquantia_main.c
index a7b1862e8a26..00bfbea81b8b 100644
--- a/drivers/net/phy/aquantia/aquantia_main.c
+++ b/drivers/net/phy/aquantia/aquantia_main.c

@@ -886,6 +886,11 @@ static int aqr_gen2_config_init(struct phy_device *phydev)
 	return aqr_gen2_fill_interface_modes(phydev);
 }
 
+static int aqr_gen3_config_init(struct phy_device *phydev)
+{
+	return aqr_gen2_config_init(phydev);
+}
+
 static int aqcs109_config_init(struct phy_device *phydev)
 {
 	int ret;

@@ -1161,7 +1166,7 @@ static struct phy_driver aqr_driver[] = {
 	.name		= "Aquantia AQR111",
 	.probe		= aqr107_probe,
 	.get_rate_matching = aqr_gen2_get_rate_matching,
-	.config_init	= aqr_gen2_config_init,
+	.config_init	= aqr_gen3_config_init,
 	.config_aneg    = aqr_config_aneg,
 	.config_intr	= aqr_config_intr,
 	.handle_interrupt = aqr_handle_interrupt,

@@ -1186,7 +1191,7 @@ static struct phy_driver aqr_driver[] = {
 	.name		= "Aquantia AQR111B0",
 	.probe		= aqr107_probe,
 	.get_rate_matching = aqr_gen2_get_rate_matching,
-	.config_init	= aqr_gen2_config_init,
+	.config_init	= aqr_gen3_config_init,
 	.config_aneg    = aqr_config_aneg,
 	.config_intr	= aqr_config_intr,
 	.handle_interrupt = aqr_handle_interrupt,

@@ -1218,6 +1223,7 @@ static struct phy_driver aqr_driver[] = {
 	PHY_ID_MATCH_MODEL(PHY_ID_AQR112),
 	.name		= "Aquantia AQR112",
 	.probe		= aqr107_probe,
+	.config_init	= aqr_gen3_config_init,
 	.config_aneg    = aqr_config_aneg,
 	.config_intr	= aqr_config_intr,
 	.handle_interrupt = aqr_handle_interrupt,

@@ -1241,6 +1247,7 @@ static struct phy_driver aqr_driver[] = {
 	PHY_ID_MATCH_MODEL(PHY_ID_AQR412),
 	.name		= "Aquantia AQR412",
 	.probe		= aqr107_probe,
+	.config_init	= aqr_gen3_config_init,
 	.config_aneg    = aqr_config_aneg,
 	.config_intr	= aqr_config_intr,
 	.handle_interrupt = aqr_handle_interrupt,

@@ -1259,6 +1266,7 @@ static struct phy_driver aqr_driver[] = {
 	PHY_ID_MATCH_MODEL(PHY_ID_AQR412C),
 	.name		= "Aquantia AQR412C",
 	.probe		= aqr107_probe,
+	.config_init	= aqr_gen3_config_init,
 	.config_aneg    = aqr_config_aneg,
 	.config_intr	= aqr_config_intr,
 	.handle_interrupt = aqr_handle_interrupt,

-- 
2.34.1

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