xref: /openbmc/linux/drivers/mfd/tps65912-i2c.c (revision 9816d859)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * I2C access driver for TI TPS65912x PMICs
4  *
5  * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
6  *	Andrew F. Davis <afd@ti.com>
7  *
8  * Based on the TPS65218 driver and the previous TPS65912 driver by
9  * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
10  */
11 
12 #include <linux/i2c.h>
13 #include <linux/module.h>
14 #include <linux/regmap.h>
15 
16 #include <linux/mfd/tps65912.h>
17 
18 static const struct of_device_id tps65912_i2c_of_match_table[] = {
19 	{ .compatible = "ti,tps65912", },
20 	{ /* sentinel */ }
21 };
22 MODULE_DEVICE_TABLE(of, tps65912_i2c_of_match_table);
23 
tps65912_i2c_probe(struct i2c_client * client)24 static int tps65912_i2c_probe(struct i2c_client *client)
25 {
26 	struct tps65912 *tps;
27 
28 	tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
29 	if (!tps)
30 		return -ENOMEM;
31 
32 	i2c_set_clientdata(client, tps);
33 	tps->dev = &client->dev;
34 	tps->irq = client->irq;
35 
36 	tps->regmap = devm_regmap_init_i2c(client, &tps65912_regmap_config);
37 	if (IS_ERR(tps->regmap)) {
38 		dev_err(tps->dev, "Failed to initialize register map\n");
39 		return PTR_ERR(tps->regmap);
40 	}
41 
42 	return tps65912_device_init(tps);
43 }
44 
tps65912_i2c_remove(struct i2c_client * client)45 static void tps65912_i2c_remove(struct i2c_client *client)
46 {
47 	struct tps65912 *tps = i2c_get_clientdata(client);
48 
49 	tps65912_device_exit(tps);
50 }
51 
52 static const struct i2c_device_id tps65912_i2c_id_table[] = {
53 	{ "tps65912", 0 },
54 	{ /* sentinel */ }
55 };
56 MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id_table);
57 
58 static struct i2c_driver tps65912_i2c_driver = {
59 	.driver		= {
60 		.name	= "tps65912",
61 		.of_match_table = tps65912_i2c_of_match_table,
62 	},
63 	.probe		= tps65912_i2c_probe,
64 	.remove		= tps65912_i2c_remove,
65 	.id_table       = tps65912_i2c_id_table,
66 };
67 module_i2c_driver(tps65912_i2c_driver);
68 
69 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
70 MODULE_DESCRIPTION("TPS65912x I2C Interface Driver");
71 MODULE_LICENSE("GPL v2");
72