292 lines
8.7 KiB
Diff
292 lines
8.7 KiB
Diff
From: Russell King <rmk+kernel@armlinux.org.uk>
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Date: Wed, 4 Jan 2017 10:46:43 +0000
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Subject: [PATCH] net: phy: move phy MMD accessors to phy-core.c
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Move the phy_(read|write)__mmd() helpers out of line, they will become
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our main MMD accessor functions, and so will be a little more complex.
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This complexity doesn't belong in an inline function. Also move the
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_indirect variants as well to keep like functionality together.
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Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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---
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create mode 100644 drivers/net/phy/phy-core.c
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--- a/drivers/net/phy/Makefile
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+++ b/drivers/net/phy/Makefile
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@@ -1,6 +1,7 @@
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# Makefile for Linux PHY drivers and MDIO bus drivers
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-libphy-y := phy.o phy_device.o mdio_bus.o mdio_device.o
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+libphy-y := phy.o phy_device.o mdio_bus.o mdio_device.o \
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+ phy-core.o
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libphy-$(CONFIG_SWPHY) += swphy.o
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obj-$(CONFIG_MDIO_BOARDINFO) += mdio-boardinfo.o
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--- a/drivers/net/phy/phy.c
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+++ b/drivers/net/phy/phy.c
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@@ -1175,91 +1175,6 @@ void phy_mac_interrupt(struct phy_device
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}
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EXPORT_SYMBOL(phy_mac_interrupt);
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-static inline void mmd_phy_indirect(struct mii_bus *bus, int prtad, int devad,
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- int addr)
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-{
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- /* Write the desired MMD Devad */
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- bus->write(bus, addr, MII_MMD_CTRL, devad);
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-
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- /* Write the desired MMD register address */
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- bus->write(bus, addr, MII_MMD_DATA, prtad);
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-
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- /* Select the Function : DATA with no post increment */
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- bus->write(bus, addr, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
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-}
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-
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-/**
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- * phy_read_mmd_indirect - reads data from the MMD registers
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- * @phydev: The PHY device bus
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- * @prtad: MMD Address
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- * @devad: MMD DEVAD
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- *
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- * Description: it reads data from the MMD registers (clause 22 to access to
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- * clause 45) of the specified phy address.
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- * To read these register we have:
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- * 1) Write reg 13 // DEVAD
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- * 2) Write reg 14 // MMD Address
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- * 3) Write reg 13 // MMD Data Command for MMD DEVAD
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- * 3) Read reg 14 // Read MMD data
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- */
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-int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad)
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-{
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- struct phy_driver *phydrv = phydev->drv;
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- int addr = phydev->mdio.addr;
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- int value = -1;
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-
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- if (!phydrv->read_mmd_indirect) {
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- struct mii_bus *bus = phydev->mdio.bus;
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-
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- mutex_lock(&bus->mdio_lock);
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- mmd_phy_indirect(bus, prtad, devad, addr);
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-
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- /* Read the content of the MMD's selected register */
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- value = bus->read(bus, addr, MII_MMD_DATA);
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- mutex_unlock(&bus->mdio_lock);
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- } else {
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- value = phydrv->read_mmd_indirect(phydev, prtad, devad, addr);
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- }
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- return value;
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-}
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-EXPORT_SYMBOL(phy_read_mmd_indirect);
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-
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-/**
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- * phy_write_mmd_indirect - writes data to the MMD registers
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- * @phydev: The PHY device
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- * @prtad: MMD Address
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- * @devad: MMD DEVAD
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- * @data: data to write in the MMD register
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- *
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- * Description: Write data from the MMD registers of the specified
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- * phy address.
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- * To write these register we have:
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- * 1) Write reg 13 // DEVAD
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- * 2) Write reg 14 // MMD Address
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- * 3) Write reg 13 // MMD Data Command for MMD DEVAD
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- * 3) Write reg 14 // Write MMD data
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- */
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-void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
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- int devad, u32 data)
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-{
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- struct phy_driver *phydrv = phydev->drv;
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- int addr = phydev->mdio.addr;
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-
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- if (!phydrv->write_mmd_indirect) {
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- struct mii_bus *bus = phydev->mdio.bus;
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-
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- mutex_lock(&bus->mdio_lock);
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- mmd_phy_indirect(bus, prtad, devad, addr);
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-
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- /* Write the data into MMD's selected register */
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- bus->write(bus, addr, MII_MMD_DATA, data);
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- mutex_unlock(&bus->mdio_lock);
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- } else {
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- phydrv->write_mmd_indirect(phydev, prtad, devad, addr, data);
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- }
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-}
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-EXPORT_SYMBOL(phy_write_mmd_indirect);
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-
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/**
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* phy_init_eee - init and check the EEE feature
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* @phydev: target phy_device struct
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--- /dev/null
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+++ b/drivers/net/phy/phy-core.c
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@@ -0,0 +1,135 @@
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+/*
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+ * Core PHY library, taken from phy.c
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License as published by the
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+ * Free Software Foundation; either version 2 of the License, or (at your
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+ * option) any later version.
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+ */
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+#include <linux/export.h>
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+#include <linux/phy.h>
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+
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+static inline void mmd_phy_indirect(struct mii_bus *bus, int prtad, int devad,
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+ int addr)
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+{
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+ /* Write the desired MMD Devad */
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+ bus->write(bus, addr, MII_MMD_CTRL, devad);
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+
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+ /* Write the desired MMD register address */
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+ bus->write(bus, addr, MII_MMD_DATA, prtad);
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+
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+ /* Select the Function : DATA with no post increment */
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+ bus->write(bus, addr, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
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+}
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+
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+/**
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+ * phy_read_mmd_indirect - reads data from the MMD registers
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+ * @phydev: The PHY device bus
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+ * @prtad: MMD Address
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+ * @devad: MMD DEVAD
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+ *
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+ * Description: it reads data from the MMD registers (clause 22 to access to
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+ * clause 45) of the specified phy address.
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+ * To read these register we have:
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+ * 1) Write reg 13 // DEVAD
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+ * 2) Write reg 14 // MMD Address
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+ * 3) Write reg 13 // MMD Data Command for MMD DEVAD
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+ * 3) Read reg 14 // Read MMD data
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+ */
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+int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad)
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+{
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+ struct phy_driver *phydrv = phydev->drv;
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+ int addr = phydev->mdio.addr;
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+ int value = -1;
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+
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+ if (!phydrv->read_mmd_indirect) {
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+ struct mii_bus *bus = phydev->mdio.bus;
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+
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+ mutex_lock(&bus->mdio_lock);
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+ mmd_phy_indirect(bus, prtad, devad, addr);
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+
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+ /* Read the content of the MMD's selected register */
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+ value = bus->read(bus, addr, MII_MMD_DATA);
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+ mutex_unlock(&bus->mdio_lock);
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+ } else {
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+ value = phydrv->read_mmd_indirect(phydev, prtad, devad, addr);
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+ }
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+ return value;
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+}
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+EXPORT_SYMBOL(phy_read_mmd_indirect);
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+
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+/**
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+ * phy_read_mmd - Convenience function for reading a register
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+ * from an MMD on a given PHY.
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+ * @phydev: The phy_device struct
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+ * @devad: The MMD to read from
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+ * @regnum: The register on the MMD to read
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+ *
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+ * Same rules as for phy_read();
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+ */
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+int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
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+{
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+ if (!phydev->is_c45)
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+ return -EOPNOTSUPP;
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+
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+ return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
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+ MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff));
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+}
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+EXPORT_SYMBOL(phy_read_mmd);
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+
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+/**
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+ * phy_write_mmd_indirect - writes data to the MMD registers
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+ * @phydev: The PHY device
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+ * @prtad: MMD Address
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+ * @devad: MMD DEVAD
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+ * @data: data to write in the MMD register
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+ *
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+ * Description: Write data from the MMD registers of the specified
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+ * phy address.
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+ * To write these register we have:
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+ * 1) Write reg 13 // DEVAD
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+ * 2) Write reg 14 // MMD Address
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+ * 3) Write reg 13 // MMD Data Command for MMD DEVAD
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+ * 3) Write reg 14 // Write MMD data
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+ */
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+void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
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+ int devad, u32 data)
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+{
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+ struct phy_driver *phydrv = phydev->drv;
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+ int addr = phydev->mdio.addr;
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+
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+ if (!phydrv->write_mmd_indirect) {
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+ struct mii_bus *bus = phydev->mdio.bus;
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+
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+ mutex_lock(&bus->mdio_lock);
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+ mmd_phy_indirect(bus, prtad, devad, addr);
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+
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+ /* Write the data into MMD's selected register */
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+ bus->write(bus, addr, MII_MMD_DATA, data);
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+ mutex_unlock(&bus->mdio_lock);
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+ } else {
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+ phydrv->write_mmd_indirect(phydev, prtad, devad, addr, data);
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+ }
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+}
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+EXPORT_SYMBOL(phy_write_mmd_indirect);
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+
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+/**
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+ * phy_write_mmd - Convenience function for writing a register
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+ * on an MMD on a given PHY.
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+ * @phydev: The phy_device struct
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+ * @devad: The MMD to read from
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+ * @regnum: The register on the MMD to read
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+ * @val: value to write to @regnum
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+ *
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+ * Same rules as for phy_write();
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+ */
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+int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val)
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+{
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+ if (!phydev->is_c45)
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+ return -EOPNOTSUPP;
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+
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+ regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff);
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+
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+ return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
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+}
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+EXPORT_SYMBOL(phy_write_mmd);
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--- a/include/linux/phy.h
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+++ b/include/linux/phy.h
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@@ -627,14 +627,7 @@ struct phy_fixup {
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*
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* Same rules as for phy_read();
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*/
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-static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
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-{
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- if (!phydev->is_c45)
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- return -EOPNOTSUPP;
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-
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- return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
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- MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff));
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-}
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+int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
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/**
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* phy_read_mmd_indirect - reads data from the MMD registers
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@@ -728,16 +721,7 @@ static inline bool phy_is_pseudo_fixed_l
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*
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* Same rules as for phy_write();
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*/
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-static inline int phy_write_mmd(struct phy_device *phydev, int devad,
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- u32 regnum, u16 val)
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-{
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- if (!phydev->is_c45)
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- return -EOPNOTSUPP;
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-
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- regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff);
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-
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- return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
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-}
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+int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
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/**
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* phy_write_mmd_indirect - writes data to the MMD registers
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