Commit | Line | Data |
---|---|---|
0f5f7078 SK |
1 | /* |
2 | * s5m87xx.c | |
3 | * | |
4 | * Copyright (c) 2011 Samsung Electronics Co., Ltd | |
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> | |
24 | #include <linux/mfd/s5m87xx/s5m-core.h> | |
25 | #include <linux/mfd/s5m87xx/s5m-pmic.h> | |
26 | #include <linux/mfd/s5m87xx/s5m-rtc.h> | |
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 | ||
57 | int s5m_reg_read(struct s5m87xx_dev *s5m87xx, u8 reg, void *dest) | |
58 | { | |
59 | return regmap_read(s5m87xx->regmap, reg, dest); | |
60 | } | |
61 | EXPORT_SYMBOL_GPL(s5m_reg_read); | |
62 | ||
63 | int s5m_bulk_read(struct s5m87xx_dev *s5m87xx, u8 reg, int count, u8 *buf) | |
64 | { | |
61a2af30 | 65 | return regmap_bulk_read(s5m87xx->regmap, reg, buf, count); |
0f5f7078 SK |
66 | } |
67 | EXPORT_SYMBOL_GPL(s5m_bulk_read); | |
68 | ||
69 | int s5m_reg_write(struct s5m87xx_dev *s5m87xx, u8 reg, u8 value) | |
70 | { | |
71 | return regmap_write(s5m87xx->regmap, reg, value); | |
72 | } | |
73 | EXPORT_SYMBOL_GPL(s5m_reg_write); | |
74 | ||
75 | int s5m_bulk_write(struct s5m87xx_dev *s5m87xx, u8 reg, int count, u8 *buf) | |
76 | { | |
113351b5 | 77 | return regmap_raw_write(s5m87xx->regmap, reg, buf, count); |
0f5f7078 SK |
78 | } |
79 | EXPORT_SYMBOL_GPL(s5m_bulk_write); | |
80 | ||
81 | int s5m_reg_update(struct s5m87xx_dev *s5m87xx, u8 reg, u8 val, u8 mask) | |
82 | { | |
83 | return regmap_update_bits(s5m87xx->regmap, reg, mask, val); | |
84 | } | |
85 | EXPORT_SYMBOL_GPL(s5m_reg_update); | |
86 | ||
87 | static struct regmap_config s5m_regmap_config = { | |
88 | .reg_bits = 8, | |
89 | .val_bits = 8, | |
90 | }; | |
91 | ||
92 | static int s5m87xx_i2c_probe(struct i2c_client *i2c, | |
93 | const struct i2c_device_id *id) | |
94 | { | |
95 | struct s5m_platform_data *pdata = i2c->dev.platform_data; | |
96 | struct s5m87xx_dev *s5m87xx; | |
61a2af30 | 97 | int ret; |
0f5f7078 | 98 | |
621210e2 SK |
99 | s5m87xx = devm_kzalloc(&i2c->dev, sizeof(struct s5m87xx_dev), |
100 | GFP_KERNEL); | |
0f5f7078 SK |
101 | if (s5m87xx == NULL) |
102 | return -ENOMEM; | |
103 | ||
104 | i2c_set_clientdata(i2c, s5m87xx); | |
105 | s5m87xx->dev = &i2c->dev; | |
106 | s5m87xx->i2c = i2c; | |
107 | s5m87xx->irq = i2c->irq; | |
108 | s5m87xx->type = id->driver_data; | |
109 | ||
110 | if (pdata) { | |
111 | s5m87xx->device_type = pdata->device_type; | |
112 | s5m87xx->ono = pdata->ono; | |
113 | s5m87xx->irq_base = pdata->irq_base; | |
114 | s5m87xx->wakeup = pdata->wakeup; | |
115 | } | |
116 | ||
117 | s5m87xx->regmap = regmap_init_i2c(i2c, &s5m_regmap_config); | |
118 | if (IS_ERR(s5m87xx->regmap)) { | |
61a2af30 | 119 | ret = PTR_ERR(s5m87xx->regmap); |
0f5f7078 | 120 | dev_err(&i2c->dev, "Failed to allocate register map: %d\n", |
61a2af30 | 121 | ret); |
0f5f7078 SK |
122 | goto err; |
123 | } | |
124 | ||
125 | s5m87xx->rtc = i2c_new_dummy(i2c->adapter, RTC_I2C_ADDR); | |
126 | i2c_set_clientdata(s5m87xx->rtc, s5m87xx); | |
127 | ||
c3ebb30a | 128 | if (pdata && pdata->cfg_pmic_irq) |
0f5f7078 SK |
129 | pdata->cfg_pmic_irq(); |
130 | ||
131 | s5m_irq_init(s5m87xx); | |
132 | ||
133 | pm_runtime_set_active(s5m87xx->dev); | |
134 | ||
88a1cfd6 SK |
135 | switch (s5m87xx->device_type) { |
136 | case S5M8751X: | |
137 | ret = mfd_add_devices(s5m87xx->dev, -1, s5m8751_devs, | |
138 | ARRAY_SIZE(s5m8751_devs), NULL, 0); | |
139 | break; | |
140 | case S5M8763X: | |
141 | ret = mfd_add_devices(s5m87xx->dev, -1, s5m8763_devs, | |
142 | ARRAY_SIZE(s5m8763_devs), NULL, 0); | |
143 | break; | |
144 | case S5M8767X: | |
145 | ret = mfd_add_devices(s5m87xx->dev, -1, s5m8767_devs, | |
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: | |
159 | mfd_remove_devices(s5m87xx->dev); | |
160 | s5m_irq_exit(s5m87xx); | |
161 | i2c_unregister_device(s5m87xx->rtc); | |
162 | regmap_exit(s5m87xx->regmap); | |
0f5f7078 SK |
163 | return ret; |
164 | } | |
165 | ||
166 | static int s5m87xx_i2c_remove(struct i2c_client *i2c) | |
167 | { | |
168 | struct s5m87xx_dev *s5m87xx = i2c_get_clientdata(i2c); | |
169 | ||
170 | mfd_remove_devices(s5m87xx->dev); | |
171 | s5m_irq_exit(s5m87xx); | |
172 | i2c_unregister_device(s5m87xx->rtc); | |
173 | regmap_exit(s5m87xx->regmap); | |
0f5f7078 SK |
174 | return 0; |
175 | } | |
176 | ||
177 | static const struct i2c_device_id s5m87xx_i2c_id[] = { | |
178 | { "s5m87xx", 0 }, | |
179 | { } | |
180 | }; | |
181 | MODULE_DEVICE_TABLE(i2c, s5m87xx_i2c_id); | |
182 | ||
183 | static struct i2c_driver s5m87xx_i2c_driver = { | |
184 | .driver = { | |
185 | .name = "s5m87xx", | |
186 | .owner = THIS_MODULE, | |
187 | }, | |
188 | .probe = s5m87xx_i2c_probe, | |
189 | .remove = s5m87xx_i2c_remove, | |
190 | .id_table = s5m87xx_i2c_id, | |
191 | }; | |
192 | ||
193 | static int __init s5m87xx_i2c_init(void) | |
194 | { | |
195 | return i2c_add_driver(&s5m87xx_i2c_driver); | |
196 | } | |
197 | ||
198 | subsys_initcall(s5m87xx_i2c_init); | |
199 | ||
200 | static void __exit s5m87xx_i2c_exit(void) | |
201 | { | |
202 | i2c_del_driver(&s5m87xx_i2c_driver); | |
203 | } | |
204 | module_exit(s5m87xx_i2c_exit); | |
205 | ||
206 | MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); | |
207 | MODULE_DESCRIPTION("Core support for the S5M MFD"); | |
208 | MODULE_LICENSE("GPL"); |