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Message-ID: <20231220155518.15692-3-kabel@kernel.org>
Date: Wed, 20 Dec 2023 16:55:05 +0100
From: Marek Behún <kabel@...nel.org>
To: netdev@...r.kernel.org,
Andrew Lunn <andrew@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
Cc: Russell King <rmk+kernel@...linux.org.uk>,
Alexander Couzens <lynxis@...0.eu>,
Daniel Golle <daniel@...rotopia.org>,
Heiner Kallweit <hkallweit1@...il.com>,
Willy Liu <willy.liu@...ltek.com>,
Ioana Ciornei <ioana.ciornei@....com>,
Marek Mojík <marek.mojik@....cz>,
Maximilián Maliar <maximilian.maliar@....cz>,
Marek Behún <kabel@...nel.org>
Subject: [PATCH net-next 02/15] net: phy: export indirect MMD register accessors
Export mmd_phy_read_indirect() and mmd_phy_write_indirect(), the
indirect MMD accessors, so that the functions can be used from the
.read_mmd / .write_mmd phy_driver methods.
Add a __ prefix to these functions.
Signed-off-by: Marek Behún <kabel@...nel.org>
---
drivers/net/phy/phy-core.c | 14 ++++++++------
include/linux/phy.h | 10 ++++++++++
2 files changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers/net/phy/phy-core.c b/drivers/net/phy/phy-core.c
index 9318b65cca95..150020cfa593 100644
--- a/drivers/net/phy/phy-core.c
+++ b/drivers/net/phy/phy-core.c
@@ -546,8 +546,8 @@ static int mmd_phy_indirect(struct mii_bus *bus, int phy_addr, int devad,
devad | MII_MMD_CTRL_NOINCR);
}
-static int mmd_phy_read_indirect(struct mii_bus *bus, int phy_addr, int devad,
- u32 regnum)
+int __mmd_phy_read_indirect(struct mii_bus *bus, int phy_addr, int devad,
+ u32 regnum)
{
int ret;
@@ -558,9 +558,10 @@ static int mmd_phy_read_indirect(struct mii_bus *bus, int phy_addr, int devad,
/* Read the content of the MMD's selected register */
return __mdiobus_read(bus, phy_addr, MII_MMD_DATA);
}
+EXPORT_SYMBOL(__mmd_phy_read_indirect);
-static int mmd_phy_write_indirect(struct mii_bus *bus, int phy_addr, int devad,
- u32 regnum, u16 val)
+int __mmd_phy_write_indirect(struct mii_bus *bus, int phy_addr, int devad,
+ u32 regnum, u16 val)
{
int ret;
@@ -571,6 +572,7 @@ static int mmd_phy_write_indirect(struct mii_bus *bus, int phy_addr, int devad,
/* Write the data into MMD's selected register */
return __mdiobus_write(bus, phy_addr, MII_MMD_DATA, val);
}
+EXPORT_SYMBOL(__mmd_phy_write_indirect);
static int mmd_phy_read(struct mii_bus *bus, int phy_addr, bool is_c45,
int devad, u32 regnum)
@@ -578,7 +580,7 @@ static int mmd_phy_read(struct mii_bus *bus, int phy_addr, bool is_c45,
if (is_c45)
return __mdiobus_c45_read(bus, phy_addr, devad, regnum);
- return mmd_phy_read_indirect(bus, phy_addr, devad, regnum);
+ return __mmd_phy_read_indirect(bus, phy_addr, devad, regnum);
}
static int mmd_phy_write(struct mii_bus *bus, int phy_addr, bool is_c45,
@@ -587,7 +589,7 @@ static int mmd_phy_write(struct mii_bus *bus, int phy_addr, bool is_c45,
if (is_c45)
return __mdiobus_c45_write(bus, phy_addr, devad, regnum, val);
- return mmd_phy_write_indirect(bus, phy_addr, devad, regnum, val);
+ return __mmd_phy_write_indirect(bus, phy_addr, devad, regnum, val);
}
/**
diff --git a/include/linux/phy.h b/include/linux/phy.h
index e9e85d347587..65b79b155f3a 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1358,6 +1358,16 @@ int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
__ret; \
})
+/*
+ * __mmd_phy_read_indirect, __mmd_phy_write_indirect - Convenience functions for
+ * indirectly accessing MMD registers via clause 22 registers 13 and 14. Can be
+ * used in phy_driver's .read_mmd and .write_mmd methods.
+ */
+int __mmd_phy_read_indirect(struct mii_bus *bus, int phy_addr, int devad,
+ u32 regnum);
+int __mmd_phy_write_indirect(struct mii_bus *bus, int phy_addr, int devad,
+ u32 regnum, u16 val);
+
/*
* __phy_read_mmd - Convenience function for reading a register
* from an MMD on a given PHY.
--
2.41.0
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