netdev - [net-next RFC PATCH 4/6] net: phy: support named mdio_device

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Date: Sun, 18 Feb 2024 20:00:30 +0100
From: Christian Marangi <ansuelsmth@...il.com>
To: Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Christian Marangi <ansuelsmth@...il.com>,
	Robert Marko <robimarko@...il.com>,
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@....com>,
	Nipun Gupta <nipun.gupta@....com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Puneet Gupta <puneet.gupta@....com>,
	Abhijit Gangurde <abhijit.gangurde@....com>,
	Umang Jain <umang.jain@...asonboard.com>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [net-next RFC PATCH 4/6] net: phy: support named mdio_device_id PHY IDs

PHY IDs defined in PHY driver .ids can have a more specific name
defined. If this is the case, overwrite the PHY istance dev name with
the more specific one from the matching dev_id.

Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
---
 drivers/net/phy/phy_device.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 60a60f182729..9e359e304f91 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -3471,9 +3471,15 @@ static int phy_probe(struct device *dev)
 	 */
 	if (phy_driver_match(phydrv, phydev, &dev_id) && dev_id) {
 		memcpy(phy_dev_id, dev_id, sizeof(*dev_id));
+		/* If defined, overwrite the PHY driver dev name with a
+		 * more specific one from the matching dev_id.
+		 */
+		if (dev_id->name)
+			drv->name = dev_id->name;
 	} else {
 		phy_dev_id->phy_id = phydrv->phy_id;
 		phy_dev_id->phy_id_mask = phydrv->phy_id_mask;
+		phy_dev_id->name = phydrv->name;
 	}
 
 	/* Fill PHY ID with dev_id if empty and PHY is C45 */
-- 
2.43.0