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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
df3df646 MR |
2 | /* |
3 | * Copyright 2009-2010 Creative Product Design | |
4 | * Marc Reilly marc@cpdesign.com.au | |
df3df646 MR |
5 | */ |
6 | ||
7 | #include <linux/slab.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/platform_device.h> | |
df3df646 MR |
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/of_gpio.h> | |
15 | #include <linux/i2c.h> | |
16 | #include <linux/err.h> | |
17 | ||
18 | #include "mc13xxx.h" | |
19 | ||
20 | static const struct i2c_device_id mc13xxx_i2c_device_id[] = { | |
21 | { | |
22 | .name = "mc13892", | |
cd0f34b0 | 23 | .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892, |
0312e024 UKK |
24 | }, { |
25 | .name = "mc34708", | |
26 | .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708, | |
df3df646 MR |
27 | }, { |
28 | /* sentinel */ | |
29 | } | |
30 | }; | |
31 | MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id); | |
32 | ||
33 | static const struct of_device_id mc13xxx_dt_ids[] = { | |
34 | { | |
35 | .compatible = "fsl,mc13892", | |
cd0f34b0 | 36 | .data = &mc13xxx_variant_mc13892, |
0312e024 UKK |
37 | }, { |
38 | .compatible = "fsl,mc34708", | |
39 | .data = &mc13xxx_variant_mc34708, | |
df3df646 MR |
40 | }, { |
41 | /* sentinel */ | |
42 | } | |
43 | }; | |
44 | MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids); | |
45 | ||
18dd21ab | 46 | static const struct regmap_config mc13xxx_regmap_i2c_config = { |
df3df646 MR |
47 | .reg_bits = 8, |
48 | .val_bits = 24, | |
49 | ||
50 | .max_register = MC13XXX_NUMREGS, | |
51 | ||
52 | .cache_type = REGCACHE_NONE, | |
53 | }; | |
54 | ||
55 | static int mc13xxx_i2c_probe(struct i2c_client *client, | |
56 | const struct i2c_device_id *id) | |
57 | { | |
df3df646 | 58 | struct mc13xxx *mc13xxx; |
df3df646 MR |
59 | int ret; |
60 | ||
e7c706b1 | 61 | mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL); |
df3df646 MR |
62 | if (!mc13xxx) |
63 | return -ENOMEM; | |
64 | ||
65 | dev_set_drvdata(&client->dev, mc13xxx); | |
66 | ||
db9ef449 | 67 | mc13xxx->irq = client->irq; |
df3df646 | 68 | |
e7c706b1 AL |
69 | mc13xxx->regmap = devm_regmap_init_i2c(client, |
70 | &mc13xxx_regmap_i2c_config); | |
df3df646 MR |
71 | if (IS_ERR(mc13xxx->regmap)) { |
72 | ret = PTR_ERR(mc13xxx->regmap); | |
db9ef449 | 73 | dev_err(&client->dev, "Failed to initialize regmap: %d\n", ret); |
df3df646 MR |
74 | return ret; |
75 | } | |
76 | ||
cd0f34b0 UKK |
77 | if (client->dev.of_node) { |
78 | const struct of_device_id *of_id = | |
79 | of_match_device(mc13xxx_dt_ids, &client->dev); | |
80 | mc13xxx->variant = of_id->data; | |
81 | } else { | |
82 | mc13xxx->variant = (void *)id->driver_data; | |
83 | } | |
df3df646 | 84 | |
db9ef449 | 85 | return mc13xxx_common_init(&client->dev); |
df3df646 MR |
86 | } |
87 | ||
4740f73f | 88 | static int mc13xxx_i2c_remove(struct i2c_client *client) |
df3df646 | 89 | { |
db9ef449 | 90 | return mc13xxx_common_exit(&client->dev); |
df3df646 MR |
91 | } |
92 | ||
93 | static struct i2c_driver mc13xxx_i2c_driver = { | |
94 | .id_table = mc13xxx_i2c_device_id, | |
95 | .driver = { | |
df3df646 MR |
96 | .name = "mc13xxx", |
97 | .of_match_table = mc13xxx_dt_ids, | |
98 | }, | |
99 | .probe = mc13xxx_i2c_probe, | |
84449216 | 100 | .remove = mc13xxx_i2c_remove, |
df3df646 MR |
101 | }; |
102 | ||
103 | static int __init mc13xxx_i2c_init(void) | |
104 | { | |
105 | return i2c_add_driver(&mc13xxx_i2c_driver); | |
106 | } | |
107 | subsys_initcall(mc13xxx_i2c_init); | |
108 | ||
109 | static void __exit mc13xxx_i2c_exit(void) | |
110 | { | |
111 | i2c_del_driver(&mc13xxx_i2c_driver); | |
112 | } | |
113 | module_exit(mc13xxx_i2c_exit); | |
114 | ||
115 | MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC"); | |
116 | MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au"); | |
117 | MODULE_LICENSE("GPL v2"); |