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| 1 | +// SPDX-License-Identifier: GPL-2.0+ |
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1 | 2 | /* Framework for MDIO devices, other than PHYs. |
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2 | 3 | * |
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3 | 4 | * Copyright (c) 2016 Andrew Lunn <andrew@lunn.ch> |
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4 | | - * |
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5 | | - * This program is free software; you can redistribute it and/or modify it |
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6 | | - * under the terms of the GNU General Public License as published by the |
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7 | | - * Free Software Foundation; either version 2 of the License, or (at your |
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8 | | - * option) any later version. |
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9 | | - * |
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10 | 5 | */ |
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11 | 6 | |
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12 | 7 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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13 | 8 | |
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| 9 | +#include <linux/delay.h> |
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14 | 10 | #include <linux/errno.h> |
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15 | 11 | #include <linux/gpio.h> |
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16 | 12 | #include <linux/gpio/consumer.h> |
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.. | .. |
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21 | 17 | #include <linux/mii.h> |
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22 | 18 | #include <linux/module.h> |
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23 | 19 | #include <linux/phy.h> |
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| 20 | +#include <linux/reset.h> |
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24 | 21 | #include <linux/slab.h> |
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25 | 22 | #include <linux/string.h> |
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26 | 23 | #include <linux/unistd.h> |
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27 | | -#include <linux/delay.h> |
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28 | 24 | |
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29 | 25 | void mdio_device_free(struct mdio_device *mdiodev) |
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30 | 26 | { |
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.. | .. |
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121 | 117 | { |
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122 | 118 | unsigned int d; |
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123 | 119 | |
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124 | | - if (!mdiodev->reset) |
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| 120 | + if (!mdiodev->reset_gpio && !mdiodev->reset_ctrl) |
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125 | 121 | return; |
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126 | 122 | |
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127 | | - gpiod_set_value(mdiodev->reset, value); |
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| 123 | + if (mdiodev->reset_gpio) |
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| 124 | + gpiod_set_value_cansleep(mdiodev->reset_gpio, value); |
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| 125 | + |
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| 126 | + if (mdiodev->reset_ctrl) { |
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| 127 | + if (value) |
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| 128 | + reset_control_assert(mdiodev->reset_ctrl); |
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| 129 | + else |
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| 130 | + reset_control_deassert(mdiodev->reset_ctrl); |
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| 131 | + } |
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128 | 132 | |
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129 | 133 | d = value ? mdiodev->reset_assert_delay : mdiodev->reset_deassert_delay; |
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130 | 134 | if (d) |
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131 | | - usleep_range(d, d + max_t(unsigned int, d / 10, 100)); |
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| 135 | + fsleep(d); |
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132 | 136 | } |
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133 | 137 | EXPORT_SYMBOL(mdio_device_reset); |
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134 | 138 | |
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.. | .. |
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146 | 150 | struct mdio_driver *mdiodrv = to_mdio_driver(drv); |
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147 | 151 | int err = 0; |
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148 | 152 | |
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149 | | - if (mdiodrv->probe) { |
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150 | | - /* Deassert the reset signal */ |
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151 | | - mdio_device_reset(mdiodev, 0); |
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| 153 | + /* Deassert the reset signal */ |
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| 154 | + mdio_device_reset(mdiodev, 0); |
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152 | 155 | |
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| 156 | + if (mdiodrv->probe) { |
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153 | 157 | err = mdiodrv->probe(mdiodev); |
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154 | 158 | if (err) { |
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155 | 159 | /* Assert the reset signal */ |
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.. | .. |
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166 | 170 | struct device_driver *drv = mdiodev->dev.driver; |
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167 | 171 | struct mdio_driver *mdiodrv = to_mdio_driver(drv); |
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168 | 172 | |
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169 | | - if (mdiodrv->remove) { |
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| 173 | + if (mdiodrv->remove) |
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170 | 174 | mdiodrv->remove(mdiodev); |
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171 | 175 | |
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172 | | - /* Assert the reset signal */ |
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173 | | - mdio_device_reset(mdiodev, 1); |
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174 | | - } |
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| 176 | + /* Assert the reset signal */ |
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| 177 | + mdio_device_reset(mdiodev, 1); |
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175 | 178 | |
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176 | 179 | return 0; |
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177 | 180 | } |
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.. | .. |
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188 | 191 | |
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189 | 192 | /** |
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190 | 193 | * mdio_driver_register - register an mdio_driver with the MDIO layer |
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191 | | - * @new_driver: new mdio_driver to register |
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| 194 | + * @drv: new mdio_driver to register |
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192 | 195 | */ |
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193 | 196 | int mdio_driver_register(struct mdio_driver *drv) |
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194 | 197 | { |
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