net: phy: aquantia: reimplement aqcs109_config_init() as aqr_gen2_config_init()

I lack documentation for AQCS109, but from commit 99c864667c9f ("net:
phy: aquantia: add support for AQCS109"), it is known that "From
software point of view, it should be almost equivalent to AQR107."

Based on further conjecture of the device numbering scheme, I am
treating it as similar to AQR109 (a Gen2 PHY capable of to 2.5G).

Its current instructions are also present in other init sequences as
below:
- aqr_wait_reset_complete() ... aqr107_chip_info() as well as
  aqr107_set_downshift() are in aqr_gen1_config_init()
- aqr_gen2_fill_interface_modes() is in aqr_gen2_config_init()

So it would be good to centralize this implementation by just calling
aqr_gen2_config_init().

In practice this completes support for the following features, which are
present on AQR109 already:
- Potentially reverse MDI lane order via "marvell,mdi-cfg-order"
- Restore polarity of active-high and active-low LEDs after reset.

Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250821152022.1065237-13-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/phy/aquantia/aquantia_main.c b/drivers/net/phy/aquantia/aquantia_main.c
index 00bfbea81b8b036662134020a114aeed49a317e0..52d434283a328621082157394ab60b319549fd11 100644 (file)
--- a/drivers/net/phy/aquantia/aquantia_main.c
+++ b/drivers/net/phy/aquantia/aquantia_main.c
@@ -893,22 +893,12 @@ static int aqr_gen3_config_init(struct phy_device *phydev)
 
 static int aqcs109_config_init(struct phy_device *phydev)
 {
-       int ret;
-
        /* Check that the PHY interface type is compatible */
        if (phydev->interface != PHY_INTERFACE_MODE_SGMII &&
            phydev->interface != PHY_INTERFACE_MODE_2500BASEX)
                return -ENODEV;
 
-       ret = aqr_wait_reset_complete(phydev);
-       if (!ret)
-               aqr107_chip_info(phydev);
-
-       ret = aqr107_set_downshift(phydev, MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT);
-       if (ret)
-               return ret;
-
-       return aqr_gen2_fill_interface_modes(phydev);
+       return aqr_gen2_config_init(phydev);
 }
 
 static void aqr107_link_change_notify(struct phy_device *phydev)