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1 | /* da9063-i2c.c: Interrupt support for Dialog DA9063 |
2 | * | |
3 | * Copyright 2012 Dialog Semiconductor Ltd. | |
4 | * Copyright 2013 Philipp Zabel, Pengutronix | |
5 | * | |
6 | * Author: Krystian Garbaciak <krystian.garbaciak@diasemi.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2 of the License, or (at your | |
11 | * option) any later version. | |
12 | * | |
13 | */ | |
14 | ||
15 | #include <linux/kernel.h> | |
16 | #include <linux/module.h> | |
17 | #include <linux/i2c.h> | |
18 | #include <linux/regmap.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/slab.h> | |
21 | #include <linux/err.h> | |
22 | ||
23 | #include <linux/mfd/core.h> | |
24 | #include <linux/mfd/da9063/core.h> | |
25 | #include <linux/mfd/da9063/pdata.h> | |
26 | #include <linux/mfd/da9063/registers.h> | |
27 | ||
71e03de4 ST |
28 | #include <linux/of.h> |
29 | #include <linux/regulator/of_regulator.h> | |
30 | ||
9cb42e2a | 31 | static const struct regmap_range da9063_ad_readable_ranges[] = { |
8e685483 KG |
32 | { |
33 | .range_min = DA9063_REG_PAGE_CON, | |
9cb42e2a | 34 | .range_max = DA9063_AD_REG_SECOND_D, |
8e685483 KG |
35 | }, { |
36 | .range_min = DA9063_REG_SEQ, | |
37 | .range_max = DA9063_REG_ID_32_31, | |
38 | }, { | |
39 | .range_min = DA9063_REG_SEQ_A, | |
40 | .range_max = DA9063_REG_AUTO3_LOW, | |
41 | }, { | |
42 | .range_min = DA9063_REG_T_OFFSET, | |
9cb42e2a | 43 | .range_max = DA9063_AD_REG_GP_ID_19, |
8e685483 KG |
44 | }, { |
45 | .range_min = DA9063_REG_CHIP_ID, | |
46 | .range_max = DA9063_REG_CHIP_VARIANT, | |
47 | }, | |
48 | }; | |
49 | ||
9cb42e2a | 50 | static const struct regmap_range da9063_ad_writeable_ranges[] = { |
8e685483 KG |
51 | { |
52 | .range_min = DA9063_REG_PAGE_CON, | |
53 | .range_max = DA9063_REG_PAGE_CON, | |
54 | }, { | |
55 | .range_min = DA9063_REG_FAULT_LOG, | |
56 | .range_max = DA9063_REG_VSYS_MON, | |
57 | }, { | |
58 | .range_min = DA9063_REG_COUNT_S, | |
9cb42e2a | 59 | .range_max = DA9063_AD_REG_ALARM_Y, |
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60 | }, { |
61 | .range_min = DA9063_REG_SEQ, | |
62 | .range_max = DA9063_REG_ID_32_31, | |
63 | }, { | |
64 | .range_min = DA9063_REG_SEQ_A, | |
65 | .range_max = DA9063_REG_AUTO3_LOW, | |
66 | }, { | |
67 | .range_min = DA9063_REG_CONFIG_I, | |
9cb42e2a | 68 | .range_max = DA9063_AD_REG_MON_REG_4, |
8e685483 | 69 | }, { |
9cb42e2a OST |
70 | .range_min = DA9063_AD_REG_GP_ID_0, |
71 | .range_max = DA9063_AD_REG_GP_ID_19, | |
8e685483 KG |
72 | }, |
73 | }; | |
74 | ||
9cb42e2a | 75 | static const struct regmap_range da9063_ad_volatile_ranges[] = { |
8e685483 | 76 | { |
0e5df61d | 77 | .range_min = DA9063_REG_PAGE_CON, |
8e685483 KG |
78 | .range_max = DA9063_REG_EVENT_D, |
79 | }, { | |
0e5df61d ST |
80 | .range_min = DA9063_REG_CONTROL_A, |
81 | .range_max = DA9063_REG_CONTROL_B, | |
82 | }, { | |
83 | .range_min = DA9063_REG_CONTROL_E, | |
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84 | .range_max = DA9063_REG_CONTROL_F, |
85 | }, { | |
0e5df61d ST |
86 | .range_min = DA9063_REG_BCORE2_CONT, |
87 | .range_max = DA9063_REG_LDO11_CONT, | |
88 | }, { | |
89 | .range_min = DA9063_REG_DVC_1, | |
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90 | .range_max = DA9063_REG_ADC_MAN, |
91 | }, { | |
92 | .range_min = DA9063_REG_ADC_RES_L, | |
9cb42e2a | 93 | .range_max = DA9063_AD_REG_SECOND_D, |
0e5df61d ST |
94 | }, { |
95 | .range_min = DA9063_REG_SEQ, | |
96 | .range_max = DA9063_REG_SEQ, | |
97 | }, { | |
98 | .range_min = DA9063_REG_EN_32K, | |
99 | .range_max = DA9063_REG_EN_32K, | |
8e685483 | 100 | }, { |
9cb42e2a OST |
101 | .range_min = DA9063_AD_REG_MON_REG_5, |
102 | .range_max = DA9063_AD_REG_MON_REG_6, | |
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103 | }, |
104 | }; | |
105 | ||
9cb42e2a OST |
106 | static const struct regmap_access_table da9063_ad_readable_table = { |
107 | .yes_ranges = da9063_ad_readable_ranges, | |
108 | .n_yes_ranges = ARRAY_SIZE(da9063_ad_readable_ranges), | |
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109 | }; |
110 | ||
9cb42e2a OST |
111 | static const struct regmap_access_table da9063_ad_writeable_table = { |
112 | .yes_ranges = da9063_ad_writeable_ranges, | |
113 | .n_yes_ranges = ARRAY_SIZE(da9063_ad_writeable_ranges), | |
8e685483 KG |
114 | }; |
115 | ||
9cb42e2a OST |
116 | static const struct regmap_access_table da9063_ad_volatile_table = { |
117 | .yes_ranges = da9063_ad_volatile_ranges, | |
118 | .n_yes_ranges = ARRAY_SIZE(da9063_ad_volatile_ranges), | |
119 | }; | |
120 | ||
121 | static const struct regmap_range da9063_bb_readable_ranges[] = { | |
122 | { | |
123 | .range_min = DA9063_REG_PAGE_CON, | |
124 | .range_max = DA9063_BB_REG_SECOND_D, | |
125 | }, { | |
126 | .range_min = DA9063_REG_SEQ, | |
127 | .range_max = DA9063_REG_ID_32_31, | |
128 | }, { | |
129 | .range_min = DA9063_REG_SEQ_A, | |
130 | .range_max = DA9063_REG_AUTO3_LOW, | |
131 | }, { | |
132 | .range_min = DA9063_REG_T_OFFSET, | |
133 | .range_max = DA9063_BB_REG_GP_ID_19, | |
134 | }, { | |
135 | .range_min = DA9063_REG_CHIP_ID, | |
136 | .range_max = DA9063_REG_CHIP_VARIANT, | |
137 | }, | |
138 | }; | |
139 | ||
140 | static const struct regmap_range da9063_bb_writeable_ranges[] = { | |
141 | { | |
142 | .range_min = DA9063_REG_PAGE_CON, | |
143 | .range_max = DA9063_REG_PAGE_CON, | |
144 | }, { | |
145 | .range_min = DA9063_REG_FAULT_LOG, | |
146 | .range_max = DA9063_REG_VSYS_MON, | |
147 | }, { | |
148 | .range_min = DA9063_REG_COUNT_S, | |
149 | .range_max = DA9063_BB_REG_ALARM_Y, | |
150 | }, { | |
151 | .range_min = DA9063_REG_SEQ, | |
152 | .range_max = DA9063_REG_ID_32_31, | |
153 | }, { | |
154 | .range_min = DA9063_REG_SEQ_A, | |
155 | .range_max = DA9063_REG_AUTO3_LOW, | |
156 | }, { | |
157 | .range_min = DA9063_REG_CONFIG_I, | |
158 | .range_max = DA9063_BB_REG_MON_REG_4, | |
159 | }, { | |
160 | .range_min = DA9063_BB_REG_GP_ID_0, | |
161 | .range_max = DA9063_BB_REG_GP_ID_19, | |
162 | }, | |
163 | }; | |
164 | ||
165 | static const struct regmap_range da9063_bb_volatile_ranges[] = { | |
166 | { | |
0e5df61d | 167 | .range_min = DA9063_REG_PAGE_CON, |
9cb42e2a OST |
168 | .range_max = DA9063_REG_EVENT_D, |
169 | }, { | |
0e5df61d ST |
170 | .range_min = DA9063_REG_CONTROL_A, |
171 | .range_max = DA9063_REG_CONTROL_B, | |
172 | }, { | |
173 | .range_min = DA9063_REG_CONTROL_E, | |
9cb42e2a OST |
174 | .range_max = DA9063_REG_CONTROL_F, |
175 | }, { | |
0e5df61d ST |
176 | .range_min = DA9063_REG_BCORE2_CONT, |
177 | .range_max = DA9063_REG_LDO11_CONT, | |
178 | }, { | |
179 | .range_min = DA9063_REG_DVC_1, | |
9cb42e2a OST |
180 | .range_max = DA9063_REG_ADC_MAN, |
181 | }, { | |
182 | .range_min = DA9063_REG_ADC_RES_L, | |
183 | .range_max = DA9063_BB_REG_SECOND_D, | |
0e5df61d ST |
184 | }, { |
185 | .range_min = DA9063_REG_SEQ, | |
186 | .range_max = DA9063_REG_SEQ, | |
187 | }, { | |
188 | .range_min = DA9063_REG_EN_32K, | |
189 | .range_max = DA9063_REG_EN_32K, | |
9cb42e2a OST |
190 | }, { |
191 | .range_min = DA9063_BB_REG_MON_REG_5, | |
192 | .range_max = DA9063_BB_REG_MON_REG_6, | |
193 | }, | |
194 | }; | |
195 | ||
196 | static const struct regmap_access_table da9063_bb_readable_table = { | |
197 | .yes_ranges = da9063_bb_readable_ranges, | |
198 | .n_yes_ranges = ARRAY_SIZE(da9063_bb_readable_ranges), | |
199 | }; | |
200 | ||
201 | static const struct regmap_access_table da9063_bb_writeable_table = { | |
202 | .yes_ranges = da9063_bb_writeable_ranges, | |
203 | .n_yes_ranges = ARRAY_SIZE(da9063_bb_writeable_ranges), | |
204 | }; | |
205 | ||
206 | static const struct regmap_access_table da9063_bb_volatile_table = { | |
207 | .yes_ranges = da9063_bb_volatile_ranges, | |
208 | .n_yes_ranges = ARRAY_SIZE(da9063_bb_volatile_ranges), | |
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209 | }; |
210 | ||
211 | static const struct regmap_range_cfg da9063_range_cfg[] = { | |
212 | { | |
213 | .range_min = DA9063_REG_PAGE_CON, | |
214 | .range_max = DA9063_REG_CHIP_VARIANT, | |
215 | .selector_reg = DA9063_REG_PAGE_CON, | |
216 | .selector_mask = 1 << DA9063_I2C_PAGE_SEL_SHIFT, | |
217 | .selector_shift = DA9063_I2C_PAGE_SEL_SHIFT, | |
218 | .window_start = 0, | |
219 | .window_len = 256, | |
220 | } | |
221 | }; | |
222 | ||
223 | static struct regmap_config da9063_regmap_config = { | |
224 | .reg_bits = 8, | |
225 | .val_bits = 8, | |
226 | .ranges = da9063_range_cfg, | |
227 | .num_ranges = ARRAY_SIZE(da9063_range_cfg), | |
228 | .max_register = DA9063_REG_CHIP_VARIANT, | |
229 | ||
230 | .cache_type = REGCACHE_RBTREE, | |
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231 | }; |
232 | ||
71e03de4 ST |
233 | static const struct of_device_id da9063_dt_ids[] = { |
234 | { .compatible = "dlg,da9063", }, | |
235 | { } | |
236 | }; | |
237 | MODULE_DEVICE_TABLE(of, da9063_dt_ids); | |
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238 | static int da9063_i2c_probe(struct i2c_client *i2c, |
239 | const struct i2c_device_id *id) | |
240 | { | |
241 | struct da9063 *da9063; | |
242 | int ret; | |
243 | ||
244 | da9063 = devm_kzalloc(&i2c->dev, sizeof(struct da9063), GFP_KERNEL); | |
245 | if (da9063 == NULL) | |
246 | return -ENOMEM; | |
247 | ||
248 | i2c_set_clientdata(i2c, da9063); | |
249 | da9063->dev = &i2c->dev; | |
250 | da9063->chip_irq = i2c->irq; | |
251 | ||
9cb42e2a OST |
252 | if (da9063->variant_code == PMIC_DA9063_AD) { |
253 | da9063_regmap_config.rd_table = &da9063_ad_readable_table; | |
254 | da9063_regmap_config.wr_table = &da9063_ad_writeable_table; | |
255 | da9063_regmap_config.volatile_table = &da9063_ad_volatile_table; | |
256 | } else { | |
257 | da9063_regmap_config.rd_table = &da9063_bb_readable_table; | |
258 | da9063_regmap_config.wr_table = &da9063_bb_writeable_table; | |
259 | da9063_regmap_config.volatile_table = &da9063_bb_volatile_table; | |
260 | } | |
261 | ||
8e685483 KG |
262 | da9063->regmap = devm_regmap_init_i2c(i2c, &da9063_regmap_config); |
263 | if (IS_ERR(da9063->regmap)) { | |
264 | ret = PTR_ERR(da9063->regmap); | |
265 | dev_err(da9063->dev, "Failed to allocate register map: %d\n", | |
266 | ret); | |
267 | return ret; | |
268 | } | |
269 | ||
270 | return da9063_device_init(da9063, i2c->irq); | |
271 | } | |
272 | ||
273 | static int da9063_i2c_remove(struct i2c_client *i2c) | |
274 | { | |
275 | struct da9063 *da9063 = i2c_get_clientdata(i2c); | |
276 | ||
277 | da9063_device_exit(da9063); | |
278 | ||
279 | return 0; | |
280 | } | |
281 | ||
282 | static const struct i2c_device_id da9063_i2c_id[] = { | |
283 | {"da9063", PMIC_DA9063}, | |
284 | {}, | |
285 | }; | |
286 | MODULE_DEVICE_TABLE(i2c, da9063_i2c_id); | |
287 | ||
288 | static struct i2c_driver da9063_i2c_driver = { | |
289 | .driver = { | |
290 | .name = "da9063", | |
71e03de4 | 291 | .of_match_table = of_match_ptr(da9063_dt_ids), |
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292 | }, |
293 | .probe = da9063_i2c_probe, | |
294 | .remove = da9063_i2c_remove, | |
295 | .id_table = da9063_i2c_id, | |
296 | }; | |
297 | ||
298 | module_i2c_driver(da9063_i2c_driver); |