1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
2df3df646SMarc Reilly /*
3df3df646SMarc Reilly * Copyright 2009-2010 Creative Product Design
4df3df646SMarc Reilly * Marc Reilly marc@cpdesign.com.au
5df3df646SMarc Reilly */
6df3df646SMarc Reilly
7df3df646SMarc Reilly #include <linux/slab.h>
8df3df646SMarc Reilly #include <linux/module.h>
9df3df646SMarc Reilly #include <linux/platform_device.h>
10df3df646SMarc Reilly #include <linux/mfd/core.h>
11df3df646SMarc Reilly #include <linux/mfd/mc13xxx.h>
12df3df646SMarc Reilly #include <linux/of.h>
13df3df646SMarc Reilly #include <linux/of_device.h>
14df3df646SMarc Reilly #include <linux/i2c.h>
15df3df646SMarc Reilly #include <linux/err.h>
16df3df646SMarc Reilly
17df3df646SMarc Reilly #include "mc13xxx.h"
18df3df646SMarc Reilly
19df3df646SMarc Reilly static const struct i2c_device_id mc13xxx_i2c_device_id[] = {
20df3df646SMarc Reilly {
21df3df646SMarc Reilly .name = "mc13892",
22cd0f34b0SUwe Kleine-König .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892,
23df3df646SMarc Reilly }, {
240312e024SUwe Kleine-König .name = "mc34708",
250312e024SUwe Kleine-König .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708,
26df3df646SMarc Reilly }, {
27df3df646SMarc Reilly /* sentinel */
28df3df646SMarc Reilly }
29df3df646SMarc Reilly };
30df3df646SMarc Reilly MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id);
31df3df646SMarc Reilly
32df3df646SMarc Reilly static const struct of_device_id mc13xxx_dt_ids[] = {
33df3df646SMarc Reilly {
34df3df646SMarc Reilly .compatible = "fsl,mc13892",
35cd0f34b0SUwe Kleine-König .data = &mc13xxx_variant_mc13892,
36df3df646SMarc Reilly }, {
370312e024SUwe Kleine-König .compatible = "fsl,mc34708",
380312e024SUwe Kleine-König .data = &mc13xxx_variant_mc34708,
39df3df646SMarc Reilly }, {
40df3df646SMarc Reilly /* sentinel */
41df3df646SMarc Reilly }
42df3df646SMarc Reilly };
43df3df646SMarc Reilly MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
44df3df646SMarc Reilly
4518dd21abSKrzysztof Kozlowski static const struct regmap_config mc13xxx_regmap_i2c_config = {
46df3df646SMarc Reilly .reg_bits = 8,
47df3df646SMarc Reilly .val_bits = 24,
48df3df646SMarc Reilly
49df3df646SMarc Reilly .max_register = MC13XXX_NUMREGS,
50df3df646SMarc Reilly
51df3df646SMarc Reilly .cache_type = REGCACHE_NONE,
52df3df646SMarc Reilly };
53df3df646SMarc Reilly
mc13xxx_i2c_probe(struct i2c_client * client)5410605529SUwe Kleine-König static int mc13xxx_i2c_probe(struct i2c_client *client)
55df3df646SMarc Reilly {
56df3df646SMarc Reilly struct mc13xxx *mc13xxx;
57df3df646SMarc Reilly int ret;
58df3df646SMarc Reilly
59e7c706b1SAxel Lin mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL);
60df3df646SMarc Reilly if (!mc13xxx)
61df3df646SMarc Reilly return -ENOMEM;
62df3df646SMarc Reilly
63df3df646SMarc Reilly dev_set_drvdata(&client->dev, mc13xxx);
64df3df646SMarc Reilly
65db9ef449SAlexander Shiyan mc13xxx->irq = client->irq;
66df3df646SMarc Reilly
67e7c706b1SAxel Lin mc13xxx->regmap = devm_regmap_init_i2c(client,
68e7c706b1SAxel Lin &mc13xxx_regmap_i2c_config);
69df3df646SMarc Reilly if (IS_ERR(mc13xxx->regmap)) {
70df3df646SMarc Reilly ret = PTR_ERR(mc13xxx->regmap);
71db9ef449SAlexander Shiyan dev_err(&client->dev, "Failed to initialize regmap: %d\n", ret);
72df3df646SMarc Reilly return ret;
73df3df646SMarc Reilly }
74df3df646SMarc Reilly
75*9aab92bcSBiju Das mc13xxx->variant = i2c_get_match_data(client);
76df3df646SMarc Reilly
77db9ef449SAlexander Shiyan return mc13xxx_common_init(&client->dev);
78df3df646SMarc Reilly }
79df3df646SMarc Reilly
mc13xxx_i2c_remove(struct i2c_client * client)80ed5c2f5fSUwe Kleine-König static void mc13xxx_i2c_remove(struct i2c_client *client)
81df3df646SMarc Reilly {
82c39cf60fSUwe Kleine-König mc13xxx_common_exit(&client->dev);
83df3df646SMarc Reilly }
84df3df646SMarc Reilly
85df3df646SMarc Reilly static struct i2c_driver mc13xxx_i2c_driver = {
86df3df646SMarc Reilly .id_table = mc13xxx_i2c_device_id,
87df3df646SMarc Reilly .driver = {
88df3df646SMarc Reilly .name = "mc13xxx",
89df3df646SMarc Reilly .of_match_table = mc13xxx_dt_ids,
90df3df646SMarc Reilly },
919816d859SUwe Kleine-König .probe = mc13xxx_i2c_probe,
9284449216SBill Pemberton .remove = mc13xxx_i2c_remove,
93df3df646SMarc Reilly };
94df3df646SMarc Reilly
mc13xxx_i2c_init(void)95df3df646SMarc Reilly static int __init mc13xxx_i2c_init(void)
96df3df646SMarc Reilly {
97df3df646SMarc Reilly return i2c_add_driver(&mc13xxx_i2c_driver);
98df3df646SMarc Reilly }
99df3df646SMarc Reilly subsys_initcall(mc13xxx_i2c_init);
100df3df646SMarc Reilly
mc13xxx_i2c_exit(void)101df3df646SMarc Reilly static void __exit mc13xxx_i2c_exit(void)
102df3df646SMarc Reilly {
103df3df646SMarc Reilly i2c_del_driver(&mc13xxx_i2c_driver);
104df3df646SMarc Reilly }
105df3df646SMarc Reilly module_exit(mc13xxx_i2c_exit);
106df3df646SMarc Reilly
107df3df646SMarc Reilly MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC");
108df3df646SMarc Reilly MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au");
109df3df646SMarc Reilly MODULE_LICENSE("GPL v2");
110