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linux/drivers/net/phy/ste10Xp.c
Uwe Kleine-König cf93c94581 net/phy: fix many "defined but unused" warnings
MODULE_DEVICE_TABLE only expands to something if it's compiled
for a module.  So when building-in support for the phys, the
mdio_device_id tables are unused.  Marking them with __maybe_unused
fixes the following warnings:

	drivers/net/phy/bcm63xx.c:134: warning: 'bcm63xx_tbl' defined but not used
	drivers/net/phy/broadcom.c:933: warning: 'broadcom_tbl' defined but not used
	drivers/net/phy/cicada.c:162: warning: 'cicada_tbl' defined but not used
	drivers/net/phy/davicom.c:222: warning: 'davicom_tbl' defined but not used
	drivers/net/phy/et1011c.c:114: warning: 'et1011c_tbl' defined but not used
	drivers/net/phy/icplus.c:137: warning: 'icplus_tbl' defined but not used
	drivers/net/phy/lxt.c:226: warning: 'lxt_tbl' defined but not used
	drivers/net/phy/marvell.c:724: warning: 'marvell_tbl' defined but not used
	drivers/net/phy/micrel.c:234: warning: 'micrel_tbl' defined but not used
	drivers/net/phy/national.c:154: warning: 'ns_tbl' defined but not used
	drivers/net/phy/qsemi.c:141: warning: 'qs6612_tbl' defined but not used
	drivers/net/phy/realtek.c:82: warning: 'realtek_tbl' defined but not used
	drivers/net/phy/smsc.c:257: warning: 'smsc_tbl' defined but not used
	drivers/net/phy/ste10Xp.c:135: warning: 'ste10Xp_tbl' defined but not used
	drivers/net/phy/vitesse.c:195: warning: 'vitesse_tbl' defined but not used

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-05 00:34:29 -07:00

146 lines
3.5 KiB
C

/*
* drivers/net/phy/ste10Xp.c
*
* Driver for STMicroelectronics STe10Xp PHYs
*
* Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*
* Copyright (c) 2008 STMicroelectronics Limited
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/phy.h>
#define MII_XCIIS 0x11 /* Configuration Info IRQ & Status Reg */
#define MII_XIE 0x12 /* Interrupt Enable Register */
#define MII_XIE_DEFAULT_MASK 0x0070 /* ANE complete, Remote Fault, Link Down */
#define STE101P_PHY_ID 0x00061c50
#define STE100P_PHY_ID 0x1c040011
static int ste10Xp_config_init(struct phy_device *phydev)
{
int value, err;
/* Software Reset PHY */
value = phy_read(phydev, MII_BMCR);
if (value < 0)
return value;
value |= BMCR_RESET;
err = phy_write(phydev, MII_BMCR, value);
if (err < 0)
return err;
do {
value = phy_read(phydev, MII_BMCR);
} while (value & BMCR_RESET);
return 0;
}
static int ste10Xp_config_intr(struct phy_device *phydev)
{
int err, value;
if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
/* Enable all STe101P interrupts (PR12) */
err = phy_write(phydev, MII_XIE, MII_XIE_DEFAULT_MASK);
/* clear any pending interrupts */
if (err == 0) {
value = phy_read(phydev, MII_XCIIS);
if (value < 0)
err = value;
}
} else
err = phy_write(phydev, MII_XIE, 0);
return err;
}
static int ste10Xp_ack_interrupt(struct phy_device *phydev)
{
int err = phy_read(phydev, MII_XCIIS);
if (err < 0)
return err;
return 0;
}
static struct phy_driver ste101p_pdriver = {
.phy_id = STE101P_PHY_ID,
.phy_id_mask = 0xfffffff0,
.name = "STe101p",
.features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
.flags = PHY_HAS_INTERRUPT,
.config_init = ste10Xp_config_init,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
.ack_interrupt = ste10Xp_ack_interrupt,
.config_intr = ste10Xp_config_intr,
.suspend = genphy_suspend,
.resume = genphy_resume,
.driver = {.owner = THIS_MODULE,}
};
static struct phy_driver ste100p_pdriver = {
.phy_id = STE100P_PHY_ID,
.phy_id_mask = 0xffffffff,
.name = "STe100p",
.features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
.flags = PHY_HAS_INTERRUPT,
.config_init = ste10Xp_config_init,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
.ack_interrupt = ste10Xp_ack_interrupt,
.config_intr = ste10Xp_config_intr,
.suspend = genphy_suspend,
.resume = genphy_resume,
.driver = {.owner = THIS_MODULE,}
};
static int __init ste10Xp_init(void)
{
int retval;
retval = phy_driver_register(&ste100p_pdriver);
if (retval < 0)
return retval;
return phy_driver_register(&ste101p_pdriver);
}
static void __exit ste10Xp_exit(void)
{
phy_driver_unregister(&ste100p_pdriver);
phy_driver_unregister(&ste101p_pdriver);
}
module_init(ste10Xp_init);
module_exit(ste10Xp_exit);
static struct mdio_device_id __maybe_unused ste10Xp_tbl[] = {
{ STE101P_PHY_ID, 0xfffffff0 },
{ STE100P_PHY_ID, 0xffffffff },
{ }
};
MODULE_DEVICE_TABLE(mdio, ste10Xp_tbl);
MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver");
MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
MODULE_LICENSE("GPL");