1 // SPDX-License-Identifier: GPL-2.0
3  * Microchip KSZ9477 series register access through I2C
5  * Copyright (C) 2018-2024 Microchip Technology Inc.
8 #include <linux/i2c.h>
17 static int ksz9477_i2c_probe(struct i2c_client *i2c)  in ksz9477_i2c_probe()  argument
20 	struct device *ddev = &i2c->dev;  in ksz9477_i2c_probe()
25 	dev = ksz_switch_alloc(&i2c->dev, i2c);  in ksz9477_i2c_probe()
27 		return -ENOMEM;  in ksz9477_i2c_probe()
31 		return -EINVAL;  in ksz9477_i2c_probe()
34 	dev->chip_id = chip->chip_id;  in ksz9477_i2c_probe()
37 		rc.lock_arg = &dev->regmap_mutex;  in ksz9477_i2c_probe()
38 		dev->regmap[i] = devm_regmap_init_i2c(i2c, &rc);  in ksz9477_i2c_probe()
39 		if (IS_ERR(dev->regmap[i])) {  in ksz9477_i2c_probe()
40 			return dev_err_probe(&i2c->dev, PTR_ERR(dev->regmap[i]),  in ksz9477_i2c_probe()
46 	if (i2c->dev.platform_data)  in ksz9477_i2c_probe()
47 		dev->pdata = i2c->dev.platform_data;  in ksz9477_i2c_probe()
49 	dev->irq = i2c->irq;  in ksz9477_i2c_probe()
57 	i2c_set_clientdata(i2c, dev);  in ksz9477_i2c_probe()
62 static void ksz9477_i2c_remove(struct i2c_client *i2c)  in ksz9477_i2c_remove()  argument
64 	struct ksz_device *dev = i2c_get_clientdata(i2c);  in ksz9477_i2c_remove()
70 static void ksz9477_i2c_shutdown(struct i2c_client *i2c)  in ksz9477_i2c_shutdown()  argument
72 	struct ksz_device *dev = i2c_get_clientdata(i2c);  in ksz9477_i2c_shutdown()
79 	i2c_set_clientdata(i2c, NULL);  in ksz9477_i2c_shutdown()
83 	{ "ksz9477-switch" },
87 MODULE_DEVICE_TABLE(i2c, ksz9477_i2c_id);
91 		.compatible = "microchip,ksz9477",
95 		.compatible = "microchip,ksz9896",
99 		.compatible = "microchip,ksz9897",
103 		.compatible = "microchip,ksz9893",
107 		.compatible = "microchip,ksz9563",
111 		.compatible = "microchip,ksz8563",
115 		.compatible = "microchip,ksz8567",
119 		.compatible = "microchip,ksz9567",
123 		.compatible = "microchip,lan9646",
135 		.name	= "ksz9477-switch",
148 MODULE_DESCRIPTION("Microchip KSZ9477 Series Switch I2C access Driver");