be01da72b1
Rather than have each driver set the driver owner field, do it once in the core code. This will also help with later changes, when the device structure will move. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/*
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* Driver for the Texas Instruments DP83848 PHY
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*
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* Copyright (C) 2015 Texas Instruments Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/phy.h>
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#define DP83848_PHY_ID 0x20005c90
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/* Registers */
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#define DP83848_MICR 0x11
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#define DP83848_MISR 0x12
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/* MICR Register Fields */
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#define DP83848_MICR_INT_OE BIT(0) /* Interrupt Output Enable */
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#define DP83848_MICR_INTEN BIT(1) /* Interrupt Enable */
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/* MISR Register Fields */
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#define DP83848_MISR_RHF_INT_EN BIT(0) /* Receive Error Counter */
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#define DP83848_MISR_FHF_INT_EN BIT(1) /* False Carrier Counter */
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#define DP83848_MISR_ANC_INT_EN BIT(2) /* Auto-negotiation complete */
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#define DP83848_MISR_DUP_INT_EN BIT(3) /* Duplex Status */
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#define DP83848_MISR_SPD_INT_EN BIT(4) /* Speed status */
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#define DP83848_MISR_LINK_INT_EN BIT(5) /* Link status */
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#define DP83848_MISR_ED_INT_EN BIT(6) /* Energy detect */
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#define DP83848_MISR_LQM_INT_EN BIT(7) /* Link Quality Monitor */
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static int dp83848_ack_interrupt(struct phy_device *phydev)
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{
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int err = phy_read(phydev, DP83848_MISR);
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return err < 0 ? err : 0;
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}
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static int dp83848_config_intr(struct phy_device *phydev)
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{
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int err;
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if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
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err = phy_write(phydev, DP83848_MICR,
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DP83848_MICR_INT_OE |
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DP83848_MICR_INTEN);
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if (err < 0)
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return err;
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return phy_write(phydev, DP83848_MISR,
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DP83848_MISR_ANC_INT_EN |
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DP83848_MISR_DUP_INT_EN |
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DP83848_MISR_SPD_INT_EN |
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DP83848_MISR_LINK_INT_EN);
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}
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return phy_write(phydev, DP83848_MICR, 0x0);
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}
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static struct mdio_device_id __maybe_unused dp83848_tbl[] = {
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{ DP83848_PHY_ID, 0xfffffff0 },
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{ }
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};
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MODULE_DEVICE_TABLE(mdio, dp83848_tbl);
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static struct phy_driver dp83848_driver[] = {
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{
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.phy_id = DP83848_PHY_ID,
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.phy_id_mask = 0xfffffff0,
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.name = "TI DP83848",
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.features = PHY_BASIC_FEATURES,
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.flags = PHY_HAS_INTERRUPT,
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.soft_reset = genphy_soft_reset,
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.config_init = genphy_config_init,
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.suspend = genphy_suspend,
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.resume = genphy_resume,
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.config_aneg = genphy_config_aneg,
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.read_status = genphy_read_status,
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/* IRQ related */
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.ack_interrupt = dp83848_ack_interrupt,
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.config_intr = dp83848_config_intr,
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},
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};
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module_phy_driver(dp83848_driver);
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MODULE_DESCRIPTION("Texas Instruments DP83848 PHY driver");
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MODULE_AUTHOR("Andrew F. Davis <afd@ti.com");
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MODULE_LICENSE("GPL");
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