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From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Fugang Duan <fugang.duan@nxp.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>,
	kernel@pengutronix.de, netdev@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-imx@nxp.com,
	Fabio Estevam <festevam@gmail.com>,
	David Jander <david@protonic.nl>,
	Russell King <linux@armlinux.org.uk>,
	Philippe Schenker <philippe.schenker@toradex.com>
Subject: [PATCH net-next v3 1/6] net: phy: execute genphy_loopback() per default on all PHYs
Date: Mon, 19 Apr 2021 15:01:01 +0200	[thread overview]
Message-ID: <20210419130106.6707-2-o.rempel@pengutronix.de> (raw)
In-Reply-To: <20210419130106.6707-1-o.rempel@pengutronix.de>

The generic loopback is really generic and is defined by the 802.3
standard, we should just mandate that drivers implement a custom
loopback if the generic one cannot work.

Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 drivers/net/phy/phy_device.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 73d29fd5e03d..320a3e5cd10a 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1777,6 +1777,9 @@ int phy_loopback(struct phy_device *phydev, bool enable)
 	struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver);
 	int ret = 0;
 
+	if (!phydrv)
+		return -ENODEV;
+
 	mutex_lock(&phydev->lock);
 
 	if (enable && phydev->loopback_enabled) {
@@ -1789,10 +1792,10 @@ int phy_loopback(struct phy_device *phydev, bool enable)
 		goto out;
 	}
 
-	if (phydev->drv && phydrv->set_loopback)
+	if (phydrv->set_loopback)
 		ret = phydrv->set_loopback(phydev, enable);
 	else
-		ret = -EOPNOTSUPP;
+		ret = genphy_loopback(phydev, enable);
 
 	if (ret)
 		goto out;
-- 
2.29.2


WARNING: multiple messages have this Message-ID (diff)
From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Fugang Duan <fugang.duan@nxp.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>,
	kernel@pengutronix.de, netdev@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-imx@nxp.com,
	Fabio Estevam <festevam@gmail.com>,
	David Jander <david@protonic.nl>,
	Russell King <linux@armlinux.org.uk>,
	Philippe Schenker <philippe.schenker@toradex.com>
Subject: [PATCH net-next v3 1/6] net: phy: execute genphy_loopback() per default on all PHYs
Date: Mon, 19 Apr 2021 15:01:01 +0200	[thread overview]
Message-ID: <20210419130106.6707-2-o.rempel@pengutronix.de> (raw)
In-Reply-To: <20210419130106.6707-1-o.rempel@pengutronix.de>

The generic loopback is really generic and is defined by the 802.3
standard, we should just mandate that drivers implement a custom
loopback if the generic one cannot work.

Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 drivers/net/phy/phy_device.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 73d29fd5e03d..320a3e5cd10a 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1777,6 +1777,9 @@ int phy_loopback(struct phy_device *phydev, bool enable)
 	struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver);
 	int ret = 0;
 
+	if (!phydrv)
+		return -ENODEV;
+
 	mutex_lock(&phydev->lock);
 
 	if (enable && phydev->loopback_enabled) {
@@ -1789,10 +1792,10 @@ int phy_loopback(struct phy_device *phydev, bool enable)
 		goto out;
 	}
 
-	if (phydev->drv && phydrv->set_loopback)
+	if (phydrv->set_loopback)
 		ret = phydrv->set_loopback(phydev, enable);
 	else
-		ret = -EOPNOTSUPP;
+		ret = genphy_loopback(phydev, enable);
 
 	if (ret)
 		goto out;
-- 
2.29.2


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2021-04-19 13:01 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-19 13:01 [PATCH net-next v3 0/6] provide generic net selftest support Oleksij Rempel
2021-04-19 13:01 ` Oleksij Rempel
2021-04-19 13:01 ` Oleksij Rempel [this message]
2021-04-19 13:01   ` [PATCH net-next v3 1/6] net: phy: execute genphy_loopback() per default on all PHYs Oleksij Rempel
2021-04-19 13:01 ` [PATCH net-next v3 2/6] net: phy: genphy_loopback: add link speed configuration Oleksij Rempel
2021-04-19 13:01   ` Oleksij Rempel
2021-04-19 13:01 ` [PATCH net-next v3 3/6] net: add generic selftest support Oleksij Rempel
2021-04-19 13:01   ` Oleksij Rempel
2021-04-30  6:45   ` Geert Uytterhoeven
2021-04-30  6:45     ` Geert Uytterhoeven
2021-04-30  7:26     ` Oleksij Rempel
2021-04-30  7:26       ` Oleksij Rempel
2021-04-30  7:49       ` Geert Uytterhoeven
2021-04-30  7:49         ` Geert Uytterhoeven
2021-04-30 12:31     ` Andrew Lunn
2021-04-30 12:31       ` Andrew Lunn
2021-04-19 13:01 ` [PATCH net-next v3 4/6] net: fec: make use of generic NET_SELFTESTS library Oleksij Rempel
2021-04-19 13:01   ` Oleksij Rempel
2021-04-19 13:01 ` [PATCH net-next v3 5/6] net: ag71xx: " Oleksij Rempel
2021-04-19 13:01   ` Oleksij Rempel
2021-04-19 13:01 ` [PATCH net-next v3 6/6] net: dsa: enable selftest support for all switches by default Oleksij Rempel
2021-04-19 13:01   ` Oleksij Rempel
2021-04-23  3:18 ` [PATCH net-next v3 0/6] provide generic net selftest support Joakim Zhang
2021-04-23  3:18   ` Joakim Zhang
2021-04-23  4:37   ` Oleksij Rempel
2021-04-23  4:37     ` Oleksij Rempel
2021-04-27  4:48     ` Joakim Zhang
2021-04-27  4:48       ` Joakim Zhang
2021-04-27  7:15       ` Oleksij Rempel
2021-04-27  7:15         ` Oleksij Rempel
2021-04-27 16:40       ` Florian Fainelli
2021-04-27 16:40         ` Florian Fainelli
2021-04-28  8:06         ` Joakim Zhang
2021-04-28  8:06           ` Joakim Zhang
2021-04-28  8:51           ` Oleksij Rempel
2021-04-28  8:51             ` Oleksij Rempel

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