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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
107 lines
2.6 KiB
C
107 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2017 Pengutronix, Juergen Borleis <kernel@pengutronix.de>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/of.h>
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#include "lan9303.h"
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struct lan9303_i2c {
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struct i2c_client *device;
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struct lan9303 chip;
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};
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static const struct regmap_config lan9303_i2c_regmap_config = {
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.reg_bits = 8,
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.val_bits = 32,
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.reg_stride = 1,
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.can_multi_write = true,
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.max_register = 0x0ff, /* address bits 0..1 are not used */
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.reg_format_endian = REGMAP_ENDIAN_LITTLE,
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.volatile_table = &lan9303_register_set,
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.wr_table = &lan9303_register_set,
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.rd_table = &lan9303_register_set,
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.cache_type = REGCACHE_NONE,
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};
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static int lan9303_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct lan9303_i2c *sw_dev;
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int ret;
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sw_dev = devm_kzalloc(&client->dev, sizeof(struct lan9303_i2c),
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GFP_KERNEL);
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if (!sw_dev)
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return -ENOMEM;
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sw_dev->chip.regmap = devm_regmap_init_i2c(client,
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&lan9303_i2c_regmap_config);
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if (IS_ERR(sw_dev->chip.regmap)) {
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ret = PTR_ERR(sw_dev->chip.regmap);
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dev_err(&client->dev, "Failed to allocate register map: %d\n",
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ret);
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return ret;
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}
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/* link forward and backward */
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sw_dev->device = client;
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i2c_set_clientdata(client, sw_dev);
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sw_dev->chip.dev = &client->dev;
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sw_dev->chip.ops = &lan9303_indirect_phy_ops;
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ret = lan9303_probe(&sw_dev->chip, client->dev.of_node);
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if (ret != 0)
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return ret;
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dev_info(&client->dev, "LAN9303 I2C driver loaded successfully\n");
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return 0;
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}
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static int lan9303_i2c_remove(struct i2c_client *client)
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{
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struct lan9303_i2c *sw_dev;
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sw_dev = i2c_get_clientdata(client);
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if (!sw_dev)
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return -ENODEV;
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return lan9303_remove(&sw_dev->chip);
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}
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/*-------------------------------------------------------------------------*/
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static const struct i2c_device_id lan9303_i2c_id[] = {
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{ "lan9303", 0 },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(i2c, lan9303_i2c_id);
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static const struct of_device_id lan9303_i2c_of_match[] = {
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{ .compatible = "smsc,lan9303-i2c", },
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{ /* sentinel */ },
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};
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MODULE_DEVICE_TABLE(of, lan9303_i2c_of_match);
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static struct i2c_driver lan9303_i2c_driver = {
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.driver = {
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.name = "LAN9303_I2C",
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.of_match_table = of_match_ptr(lan9303_i2c_of_match),
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},
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.probe = lan9303_i2c_probe,
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.remove = lan9303_i2c_remove,
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.id_table = lan9303_i2c_id,
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};
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module_i2c_driver(lan9303_i2c_driver);
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MODULE_AUTHOR("Juergen Borleis <kernel@pengutronix.de>");
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MODULE_DESCRIPTION("Driver for SMSC/Microchip LAN9303 three port ethernet switch in I2C managed mode");
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MODULE_LICENSE("GPL v2");
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