netdev - [PATCH RFC 2/4] net: phy: use unlocked accessors for indirect MMD accesses

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Message-Id: <E1eNKtM-0007nK-5e@rmk-PC.armlinux.org.uk>
Date:   Fri, 08 Dec 2017 15:48:48 +0000
From:   Russell King <rmk+kernel@...linux.org.uk>
To:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     netdev@...r.kernel.org
Subject: [PATCH RFC 2/4] net: phy: use unlocked accessors for indirect MMD
 accesses

Use unlocked accessors for indirect MMD accesses to clause 22 PHYs.
This permits tracing of these accesses.

Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
---
 drivers/net/phy/phy-core.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/phy/phy-core.c b/drivers/net/phy/phy-core.c
index 21f75ae244b3..83d32644cb4d 100644
--- a/drivers/net/phy/phy-core.c
+++ b/drivers/net/phy/phy-core.c
@@ -193,13 +193,14 @@ static void mmd_phy_indirect(struct mii_bus *bus, int phy_addr, int devad,
 			     u16 regnum)
 {
 	/* Write the desired MMD Devad */
-	bus->write(bus, phy_addr, MII_MMD_CTRL, devad);
+	__mdiobus_write(bus, phy_addr, MII_MMD_CTRL, devad);
 
 	/* Write the desired MMD register address */
-	bus->write(bus, phy_addr, MII_MMD_DATA, regnum);
+	__mdiobus_write(bus, phy_addr, MII_MMD_DATA, regnum);
 
 	/* Select the Function : DATA with no post increment */
-	bus->write(bus, phy_addr, MII_MMD_CTRL, devad | MII_MMD_CTRL_NOINCR);
+	__mdiobus_write(bus, phy_addr, MII_MMD_CTRL,
+			devad | MII_MMD_CTRL_NOINCR);
 }
 
 /**
@@ -232,7 +233,7 @@ int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
 		mmd_phy_indirect(bus, phy_addr, devad, regnum);
 
 		/* Read the content of the MMD's selected register */
-		val = bus->read(bus, phy_addr, MII_MMD_DATA);
+		val = __mdiobus_read(bus, phy_addr, MII_MMD_DATA);
 		mutex_unlock(&bus->mdio_lock);
 	}
 	return val;
@@ -271,7 +272,7 @@ int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val)
 		mmd_phy_indirect(bus, phy_addr, devad, regnum);
 
 		/* Write the data into MMD's selected register */
-		bus->write(bus, phy_addr, MII_MMD_DATA, val);
+		__mdiobus_write(bus, phy_addr, MII_MMD_DATA, val);
 		mutex_unlock(&bus->mdio_lock);
 
 		ret = 0;
-- 
2.7.4