1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright 2009-2010 Creative Product Design
4 * Marc Reilly marc@cpdesign.com.au
5 */
6
7#include <linux/slab.h>
8#include <linux/module.h>
9#include <linux/platform_device.h>
10#include <linux/mfd/core.h>
11#include <linux/mfd/mc13xxx.h>
12#include <linux/of.h>
13#include <linux/of_device.h>
14#include <linux/i2c.h>
15#include <linux/err.h>
16
17#include "mc13xxx.h"
18
19static const struct i2c_device_id mc13xxx_i2c_device_id[] = {
20	{
21		.name = "mc13892",
22		.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892,
23	}, {
24		.name = "mc34708",
25		.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708,
26	}, {
27		/* sentinel */
28	}
29};
30MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id);
31
32static const struct of_device_id mc13xxx_dt_ids[] = {
33	{
34		.compatible = "fsl,mc13892",
35		.data = &mc13xxx_variant_mc13892,
36	}, {
37		.compatible = "fsl,mc34708",
38		.data = &mc13xxx_variant_mc34708,
39	}, {
40		/* sentinel */
41	}
42};
43MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
44
45static const struct regmap_config mc13xxx_regmap_i2c_config = {
46	.reg_bits = 8,
47	.val_bits = 24,
48
49	.max_register = MC13XXX_NUMREGS,
50
51	.cache_type = REGCACHE_NONE,
52};
53
54static int mc13xxx_i2c_probe(struct i2c_client *client)
55{
56	struct mc13xxx *mc13xxx;
57	int ret;
58
59	mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL);
60	if (!mc13xxx)
61		return -ENOMEM;
62
63	dev_set_drvdata(&client->dev, mc13xxx);
64
65	mc13xxx->irq = client->irq;
66
67	mc13xxx->regmap = devm_regmap_init_i2c(client,
68					       &mc13xxx_regmap_i2c_config);
69	if (IS_ERR(mc13xxx->regmap)) {
70		ret = PTR_ERR(mc13xxx->regmap);
71		dev_err(&client->dev, "Failed to initialize regmap: %d\n", ret);
72		return ret;
73	}
74
75	mc13xxx->variant = i2c_get_match_data(client);
76
77	return mc13xxx_common_init(&client->dev);
78}
79
80static void mc13xxx_i2c_remove(struct i2c_client *client)
81{
82	mc13xxx_common_exit(&client->dev);
83}
84
85static struct i2c_driver mc13xxx_i2c_driver = {
86	.id_table = mc13xxx_i2c_device_id,
87	.driver = {
88		.name = "mc13xxx",
89		.of_match_table = mc13xxx_dt_ids,
90	},
91	.probe = mc13xxx_i2c_probe,
92	.remove = mc13xxx_i2c_remove,
93};
94
95static int __init mc13xxx_i2c_init(void)
96{
97	return i2c_add_driver(&mc13xxx_i2c_driver);
98}
99subsys_initcall(mc13xxx_i2c_init);
100
101static void __exit mc13xxx_i2c_exit(void)
102{
103	i2c_del_driver(&mc13xxx_i2c_driver);
104}
105module_exit(mc13xxx_i2c_exit);
106
107MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC");
108MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au");
109MODULE_LICENSE("GPL v2");
110