linux-kernel - [RFC PATCH net-next v2 02/11] net: mdio: fwnode: remove legacy compatible checking for phy child

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Date:   Thu, 31 Mar 2022 11:25:24 +0200
From:   Clément Léger <clement.leger@...tlin.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     Horatiu Vultur <horatiu.vultur@...rochip.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Allan Nielsen <allan.nielsen@...rochip.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Clément Léger <clement.leger@...tlin.com>
Subject: [RFC PATCH net-next v2 02/11] net: mdio: fwnode: remove legacy compatible checking for phy child

Remove legacy checking for specific phy compatibles.

Signed-off-by: Clément Léger <clement.leger@...tlin.com>
---
 drivers/net/mdio/fwnode_mdio.c | 29 -----------------------------
 1 file changed, 29 deletions(-)

diff --git a/drivers/net/mdio/fwnode_mdio.c b/drivers/net/mdio/fwnode_mdio.c
index a5a6fd9ebd94..17585c5b34bb 100644
--- a/drivers/net/mdio/fwnode_mdio.c
+++ b/drivers/net/mdio/fwnode_mdio.c
@@ -176,33 +176,11 @@ static int of_mdiobus_register_device(struct mii_bus *mdio,
 	return 0;
 }
 
-/* The following is a list of PHY compatible strings which appear in
- * some DTBs. The compatible string is never matched against a PHY
- * driver, so is pointless. We only expect devices which are not PHYs
- * to have a compatible string, so they can be matched to an MDIO
- * driver.  Encourage users to upgrade their DT blobs to remove these.
- */
-static const struct of_device_id whitelist_phys[] = {
-	{ .compatible = "brcm,40nm-ephy" },
-	{ .compatible = "broadcom,bcm5241" },
-	{ .compatible = "marvell,88E1111", },
-	{ .compatible = "marvell,88e1116", },
-	{ .compatible = "marvell,88e1118", },
-	{ .compatible = "marvell,88e1145", },
-	{ .compatible = "marvell,88e1149r", },
-	{ .compatible = "marvell,88e1310", },
-	{ .compatible = "marvell,88E1510", },
-	{ .compatible = "marvell,88E1514", },
-	{ .compatible = "moxa,moxart-rtl8201cp", },
-	{}
-};
-
 /*
  * Return true if the child node is for a phy. It must either:
  * o Compatible string of "ethernet-phy-idX.X"
  * o Compatible string of "ethernet-phy-ieee802.3-c45"
  * o Compatible string of "ethernet-phy-ieee802.3-c22"
- * o In the white list above (and issue a warning)
  * o No compatibility string
  *
  * A device which is not a phy is expected to have a compatible string
@@ -221,13 +199,6 @@ bool fwnode_mdiobus_child_is_phy(struct device_node *child)
 	if (of_device_is_compatible(child, "ethernet-phy-ieee802.3-c22"))
 		return true;
 
-	if (of_match_node(whitelist_phys, child)) {
-		pr_warn(FW_WARN
-			"%pOF: Whitelisted compatible string. Please remove\n",
-			child);
-		return true;
-	}
-
 	if (!of_find_property(child, "compatible", NULL))
 		return true;
 
-- 
2.34.1