From 6325c8bc484e3c123c95854bbe52543eecc7127d Mon Sep 17 00:00:00 2001
From: Dan Murphy <dmurphy@ti.com>
Date: Mon, 4 May 2020 16:14:36 -0500
Subject: [PATCH] net: phy: Add missing kernel doc to phy functions
Add kernel doc to the phy_read/write utility functions in phy.h
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
---
include/phy.h | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/include/phy.h b/include/phy.h
index b5de14cbfc..c1f6509e42 100644
--- a/include/phy.h
+++ b/include/phy.h
@@ -170,6 +170,13 @@ struct fixed_link {
int asym_pause;
};
+/**
+ * phy_read - Convenience function for reading a given PHY register
+ * @phydev: the phy_device struct
+ * @devad: The MMD to read from
+ * @regnum: register number to read
+ * @return: value for success or negative errno for failure
+ */
static inline int phy_read(struct phy_device *phydev, int devad, int regnum)
{
struct mii_dev *bus = phydev->bus;
@@ -182,6 +189,14 @@ static inline int phy_read(struct phy_device *phydev, int devad, int regnum)
return bus->read(bus, phydev->addr, devad, regnum);
}
+/**
+ * phy_write - Convenience function for writing a given PHY register
+ * @phydev: the phy_device struct
+ * @devad: The MMD to read from
+ * @regnum: register number to write
+ * @val: value to write to @regnum
+ * @return: 0 for success or negative errno for failure
+ */
static inline int phy_write(struct phy_device *phydev, int devad, int regnum,
u16 val)
{
@@ -195,6 +210,13 @@ static inline int phy_write(struct phy_device *phydev, int devad, int regnum,
return bus->write(bus, phydev->addr, devad, regnum, val);
}
+/**
+ * phy_mmd_start_indirect - Convenience function for writing MMD registers
+ * @phydev: the phy_device struct
+ * @devad: The MMD to read from
+ * @regnum: register number to write
+ * @return: None
+ */
static inline void phy_mmd_start_indirect(struct phy_device *phydev, int devad,
int regnum)
{
@@ -209,6 +231,14 @@ static inline void phy_mmd_start_indirect(struct phy_device *phydev, int devad,
(devad | MII_MMD_CTRL_NOINCR));
}
+/**
+ * phy_read_mmd - Convenience function for reading a register
+ * from an MMD on a given PHY.
+ * @phydev: The phy_device struct
+ * @devad: The MMD to read from
+ * @regnum: The register on the MMD to read
+ * @return: Value for success or negative errno for failure
+ */
static inline int phy_read_mmd(struct phy_device *phydev, int devad,
int regnum)
{
@@ -233,6 +263,15 @@ static inline int phy_read_mmd(struct phy_device *phydev, int devad,
return phy_read(phydev, MDIO_DEVAD_NONE, MII_MMD_DATA);
}
+/**
+ * phy_write_mmd - Convenience function for writing a register
+ * on an MMD on a given PHY.
+ * @phydev: The phy_device struct
+ * @devad: The MMD to read from
+ * @regnum: The register on the MMD to read
+ * @val: value to write to @regnum
+ * @return: 0 for success or negative errno for failure
+ */
static inline int phy_write_mmd(struct phy_device *phydev, int devad,
int regnum, u16 val)
{
--
2.39.5