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 | |
19 | static 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 | }; |
30 | MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id); |
31 | |
32 | static 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 | }; |
43 | MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids); |
44 | |
45 | static 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 | |
54 | static int mc13xxx_i2c_probe(struct i2c_client *client) |
55 | { |
56 | struct mc13xxx *mc13xxx; |
57 | int ret; |
58 | |
59 | mc13xxx = devm_kzalloc(dev: &client->dev, size: sizeof(*mc13xxx), GFP_KERNEL); |
60 | if (!mc13xxx) |
61 | return -ENOMEM; |
62 | |
63 | dev_set_drvdata(dev: &client->dev, data: 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(ptr: mc13xxx->regmap)) { |
70 | ret = PTR_ERR(ptr: 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(dev: &client->dev); |
78 | } |
79 | |
80 | static void mc13xxx_i2c_remove(struct i2c_client *client) |
81 | { |
82 | mc13xxx_common_exit(dev: &client->dev); |
83 | } |
84 | |
85 | static 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 | |
95 | static int __init mc13xxx_i2c_init(void) |
96 | { |
97 | return i2c_add_driver(&mc13xxx_i2c_driver); |
98 | } |
99 | subsys_initcall(mc13xxx_i2c_init); |
100 | |
101 | static void __exit mc13xxx_i2c_exit(void) |
102 | { |
103 | i2c_del_driver(driver: &mc13xxx_i2c_driver); |
104 | } |
105 | module_exit(mc13xxx_i2c_exit); |
106 | |
107 | MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC" ); |
108 | MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au" ); |
109 | MODULE_LICENSE("GPL v2" ); |
110 | |