Commit | Line | Data |
---|---|---|
0f5f7078 | 1 | /* |
63063bfb | 2 | * sec-core.c |
0f5f7078 | 3 | * |
63063bfb | 4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd |
0f5f7078 SK |
5 | * http://www.samsung.com |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | */ | |
13 | ||
14 | #include <linux/module.h> | |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/err.h> | |
18 | #include <linux/slab.h> | |
19 | #include <linux/i2c.h> | |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/pm_runtime.h> | |
22 | #include <linux/mutex.h> | |
23 | #include <linux/mfd/core.h> | |
66c9fbb9 SK |
24 | #include <linux/mfd/samsung/s5m-core.h> |
25 | #include <linux/mfd/samsung/s5m-pmic.h> | |
26 | #include <linux/mfd/samsung/s5m-rtc.h> | |
0f5f7078 SK |
27 | #include <linux/regmap.h> |
28 | ||
88a1cfd6 SK |
29 | static struct mfd_cell s5m8751_devs[] = { |
30 | { | |
31 | .name = "s5m8751-pmic", | |
32 | }, { | |
33 | .name = "s5m-charger", | |
34 | }, { | |
35 | .name = "s5m8751-codec", | |
36 | }, | |
37 | }; | |
38 | ||
39 | static struct mfd_cell s5m8763_devs[] = { | |
40 | { | |
41 | .name = "s5m8763-pmic", | |
42 | }, { | |
43 | .name = "s5m-rtc", | |
44 | }, { | |
45 | .name = "s5m-charger", | |
46 | }, | |
47 | }; | |
48 | ||
49 | static struct mfd_cell s5m8767_devs[] = { | |
0f5f7078 SK |
50 | { |
51 | .name = "s5m8767-pmic", | |
52 | }, { | |
53 | .name = "s5m-rtc", | |
54 | }, | |
55 | }; | |
56 | ||
63063bfb | 57 | int sec_reg_read(struct sec_pmic_dev *sec_pmic, u8 reg, void *dest) |
0f5f7078 | 58 | { |
63063bfb | 59 | return regmap_read(sec_pmic->regmap, reg, dest); |
0f5f7078 | 60 | } |
63063bfb | 61 | EXPORT_SYMBOL_GPL(sec_reg_read); |
0f5f7078 | 62 | |
63063bfb | 63 | int sec_bulk_read(struct sec_pmic_dev *sec_pmic, u8 reg, int count, u8 *buf) |
0f5f7078 | 64 | { |
63063bfb | 65 | return regmap_bulk_read(sec_pmic->regmap, reg, buf, count); |
0f5f7078 | 66 | } |
63063bfb | 67 | EXPORT_SYMBOL_GPL(sec_bulk_read); |
0f5f7078 | 68 | |
63063bfb | 69 | int sec_reg_write(struct sec_pmic_dev *sec_pmic, u8 reg, u8 value) |
0f5f7078 | 70 | { |
63063bfb | 71 | return regmap_write(sec_pmic->regmap, reg, value); |
0f5f7078 | 72 | } |
63063bfb | 73 | EXPORT_SYMBOL_GPL(sec_reg_write); |
0f5f7078 | 74 | |
63063bfb | 75 | int sec_bulk_write(struct sec_pmic_dev *sec_pmic, u8 reg, int count, u8 *buf) |
0f5f7078 | 76 | { |
63063bfb | 77 | return regmap_raw_write(sec_pmic->regmap, reg, buf, count); |
0f5f7078 | 78 | } |
63063bfb | 79 | EXPORT_SYMBOL_GPL(sec_bulk_write); |
0f5f7078 | 80 | |
63063bfb | 81 | int sec_reg_update(struct sec_pmic_dev *sec_pmic, u8 reg, u8 val, u8 mask) |
0f5f7078 | 82 | { |
63063bfb | 83 | return regmap_update_bits(sec_pmic->regmap, reg, mask, val); |
0f5f7078 | 84 | } |
63063bfb | 85 | EXPORT_SYMBOL_GPL(sec_reg_update); |
0f5f7078 | 86 | |
63063bfb | 87 | static struct regmap_config sec_regmap_config = { |
0f5f7078 SK |
88 | .reg_bits = 8, |
89 | .val_bits = 8, | |
90 | }; | |
91 | ||
63063bfb | 92 | static int sec_pmic_probe(struct i2c_client *i2c, |
0f5f7078 SK |
93 | const struct i2c_device_id *id) |
94 | { | |
63063bfb SK |
95 | struct sec_platform_data *pdata = i2c->dev.platform_data; |
96 | struct sec_pmic_dev *sec_pmic; | |
61a2af30 | 97 | int ret; |
0f5f7078 | 98 | |
63063bfb | 99 | sec_pmic = devm_kzalloc(&i2c->dev, sizeof(struct sec_pmic_dev), |
621210e2 | 100 | GFP_KERNEL); |
63063bfb | 101 | if (sec_pmic == NULL) |
0f5f7078 SK |
102 | return -ENOMEM; |
103 | ||
63063bfb SK |
104 | i2c_set_clientdata(i2c, sec_pmic); |
105 | sec_pmic->dev = &i2c->dev; | |
106 | sec_pmic->i2c = i2c; | |
107 | sec_pmic->irq = i2c->irq; | |
108 | sec_pmic->type = id->driver_data; | |
0f5f7078 SK |
109 | |
110 | if (pdata) { | |
63063bfb SK |
111 | sec_pmic->device_type = pdata->device_type; |
112 | sec_pmic->ono = pdata->ono; | |
113 | sec_pmic->irq_base = pdata->irq_base; | |
114 | sec_pmic->wakeup = pdata->wakeup; | |
0f5f7078 SK |
115 | } |
116 | ||
63063bfb SK |
117 | sec_pmic->regmap = devm_regmap_init_i2c(i2c, &sec_regmap_config); |
118 | if (IS_ERR(sec_pmic->regmap)) { | |
119 | ret = PTR_ERR(sec_pmic->regmap); | |
0f5f7078 | 120 | dev_err(&i2c->dev, "Failed to allocate register map: %d\n", |
61a2af30 | 121 | ret); |
1092e1c7 | 122 | return ret; |
0f5f7078 SK |
123 | } |
124 | ||
63063bfb SK |
125 | sec_pmic->rtc = i2c_new_dummy(i2c->adapter, RTC_I2C_ADDR); |
126 | i2c_set_clientdata(sec_pmic->rtc, sec_pmic); | |
0f5f7078 | 127 | |
c3ebb30a | 128 | if (pdata && pdata->cfg_pmic_irq) |
0f5f7078 SK |
129 | pdata->cfg_pmic_irq(); |
130 | ||
63063bfb | 131 | sec_irq_init(sec_pmic); |
0f5f7078 | 132 | |
63063bfb | 133 | pm_runtime_set_active(sec_pmic->dev); |
0f5f7078 | 134 | |
63063bfb | 135 | switch (sec_pmic->device_type) { |
88a1cfd6 | 136 | case S5M8751X: |
63063bfb | 137 | ret = mfd_add_devices(sec_pmic->dev, -1, s5m8751_devs, |
88a1cfd6 SK |
138 | ARRAY_SIZE(s5m8751_devs), NULL, 0); |
139 | break; | |
140 | case S5M8763X: | |
63063bfb | 141 | ret = mfd_add_devices(sec_pmic->dev, -1, s5m8763_devs, |
88a1cfd6 SK |
142 | ARRAY_SIZE(s5m8763_devs), NULL, 0); |
143 | break; | |
144 | case S5M8767X: | |
63063bfb | 145 | ret = mfd_add_devices(sec_pmic->dev, -1, s5m8767_devs, |
88a1cfd6 SK |
146 | ARRAY_SIZE(s5m8767_devs), NULL, 0); |
147 | break; | |
148 | default: | |
149 | /* If this happens the probe function is problem */ | |
150 | BUG(); | |
151 | } | |
0f5f7078 SK |
152 | |
153 | if (ret < 0) | |
154 | goto err; | |
155 | ||
156 | return ret; | |
157 | ||
158 | err: | |
63063bfb SK |
159 | mfd_remove_devices(sec_pmic->dev); |
160 | sec_irq_exit(sec_pmic); | |
161 | i2c_unregister_device(sec_pmic->rtc); | |
0f5f7078 SK |
162 | return ret; |
163 | } | |
164 | ||
63063bfb | 165 | static int sec_pmic_remove(struct i2c_client *i2c) |
0f5f7078 | 166 | { |
63063bfb | 167 | struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c); |
0f5f7078 | 168 | |
63063bfb SK |
169 | mfd_remove_devices(sec_pmic->dev); |
170 | sec_irq_exit(sec_pmic); | |
171 | i2c_unregister_device(sec_pmic->rtc); | |
0f5f7078 SK |
172 | return 0; |
173 | } | |
174 | ||
63063bfb SK |
175 | static const struct i2c_device_id sec_pmic_id[] = { |
176 | { "sec_pmic", 0 }, | |
0f5f7078 SK |
177 | { } |
178 | }; | |
63063bfb | 179 | MODULE_DEVICE_TABLE(i2c, sec_pmic_id); |
0f5f7078 | 180 | |
63063bfb | 181 | static struct i2c_driver sec_pmic_driver = { |
0f5f7078 | 182 | .driver = { |
63063bfb | 183 | .name = "sec_pmic", |
0f5f7078 SK |
184 | .owner = THIS_MODULE, |
185 | }, | |
63063bfb SK |
186 | .probe = sec_pmic_probe, |
187 | .remove = sec_pmic_remove, | |
188 | .id_table = sec_pmic_id, | |
0f5f7078 SK |
189 | }; |
190 | ||
63063bfb | 191 | static int __init sec_pmic_init(void) |
0f5f7078 | 192 | { |
63063bfb | 193 | return i2c_add_driver(&sec_pmic_driver); |
0f5f7078 SK |
194 | } |
195 | ||
63063bfb | 196 | subsys_initcall(sec_pmic_init); |
0f5f7078 | 197 | |
63063bfb | 198 | static void __exit sec_pmic_exit(void) |
0f5f7078 | 199 | { |
63063bfb | 200 | i2c_del_driver(&sec_pmic_driver); |
0f5f7078 | 201 | } |
63063bfb | 202 | module_exit(sec_pmic_exit); |
0f5f7078 SK |
203 | |
204 | MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); | |
205 | MODULE_DESCRIPTION("Core support for the S5M MFD"); | |
206 | MODULE_LICENSE("GPL"); |