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1// SPDX-License-Identifier: GPL-2.0-only
2#include <linux/i2c.h>
3#include <linux/module.h>
4#include <linux/platform_device.h>
5#include <linux/regmap.h>
6#include <linux/regulator/driver.h>
7
8#include <linux/mfd/88pm886.h>
9
10static const struct regmap_config pm886_regulator_regmap_config = {
11 .reg_bits = 8,
12 .val_bits = 8,
13 .max_register = PM886_REG_BUCK5_VOUT,
14};
15
16static const struct regulator_ops pm886_ldo_ops = {
17 .list_voltage = regulator_list_voltage_table,
18 .map_voltage = regulator_map_voltage_iterate,
19 .set_voltage_sel = regulator_set_voltage_sel_regmap,
20 .get_voltage_sel = regulator_get_voltage_sel_regmap,
21 .enable = regulator_enable_regmap,
22 .disable = regulator_disable_regmap,
23 .is_enabled = regulator_is_enabled_regmap,
24};
25
26static const struct regulator_ops pm886_buck_ops = {
27 .list_voltage = regulator_list_voltage_linear_range,
28 .map_voltage = regulator_map_voltage_linear_range,
29 .set_voltage_sel = regulator_set_voltage_sel_regmap,
30 .get_voltage_sel = regulator_get_voltage_sel_regmap,
31 .enable = regulator_enable_regmap,
32 .disable = regulator_disable_regmap,
33 .is_enabled = regulator_is_enabled_regmap,
34};
35
36static const unsigned int pm886_ldo_volt_table1[] = {
37 1700000, 1800000, 1900000, 2500000, 2800000, 2900000, 3100000, 3300000,
38};
39
40static const unsigned int pm886_ldo_volt_table2[] = {
41 1200000, 1250000, 1700000, 1800000, 1850000, 1900000, 2500000, 2600000,
42 2700000, 2750000, 2800000, 2850000, 2900000, 3000000, 3100000, 3300000,
43};
44
45static const unsigned int pm886_ldo_volt_table3[] = {
46 1700000, 1800000, 1900000, 2000000, 2100000, 2500000, 2700000, 2800000,
47};
48
49static const struct linear_range pm886_buck_volt_ranges1[] = {
50 REGULATOR_LINEAR_RANGE(600000, 0, 79, 12500),
51 REGULATOR_LINEAR_RANGE(1600000, 80, 84, 50000),
52};
53
54static const struct linear_range pm886_buck_volt_ranges2[] = {
55 REGULATOR_LINEAR_RANGE(600000, 0, 79, 12500),
56 REGULATOR_LINEAR_RANGE(1600000, 80, 114, 50000),
57};
58
59static struct regulator_desc pm886_regulators[] = {
60 {
61 .name = "LDO1",
62 .regulators_node = "regulators",
63 .of_match = "ldo1",
64 .ops = &pm886_ldo_ops,
65 .type = REGULATOR_VOLTAGE,
66 .enable_reg = PM886_REG_LDO_EN1,
67 .enable_mask = BIT(0),
68 .volt_table = pm886_ldo_volt_table1,
69 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table1),
70 .vsel_reg = PM886_REG_LDO1_VOUT,
71 .vsel_mask = PM886_LDO_VSEL_MASK,
72 },
73 {
74 .name = "LDO2",
75 .regulators_node = "regulators",
76 .of_match = "ldo2",
77 .ops = &pm886_ldo_ops,
78 .type = REGULATOR_VOLTAGE,
79 .enable_reg = PM886_REG_LDO_EN1,
80 .enable_mask = BIT(1),
81 .volt_table = pm886_ldo_volt_table1,
82 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table1),
83 .vsel_reg = PM886_REG_LDO2_VOUT,
84 .vsel_mask = PM886_LDO_VSEL_MASK,
85 },
86 {
87 .name = "LDO3",
88 .regulators_node = "regulators",
89 .of_match = "ldo3",
90 .ops = &pm886_ldo_ops,
91 .type = REGULATOR_VOLTAGE,
92 .enable_reg = PM886_REG_LDO_EN1,
93 .enable_mask = BIT(2),
94 .volt_table = pm886_ldo_volt_table1,
95 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table1),
96 .vsel_reg = PM886_REG_LDO3_VOUT,
97 .vsel_mask = PM886_LDO_VSEL_MASK,
98 },
99 {
100 .name = "LDO4",
101 .regulators_node = "regulators",
102 .of_match = "ldo4",
103 .ops = &pm886_ldo_ops,
104 .type = REGULATOR_VOLTAGE,
105 .enable_reg = PM886_REG_LDO_EN1,
106 .enable_mask = BIT(3),
107 .volt_table = pm886_ldo_volt_table2,
108 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
109 .vsel_reg = PM886_REG_LDO4_VOUT,
110 .vsel_mask = PM886_LDO_VSEL_MASK,
111 },
112 {
113 .name = "LDO5",
114 .regulators_node = "regulators",
115 .of_match = "ldo5",
116 .ops = &pm886_ldo_ops,
117 .type = REGULATOR_VOLTAGE,
118 .enable_reg = PM886_REG_LDO_EN1,
119 .enable_mask = BIT(4),
120 .volt_table = pm886_ldo_volt_table2,
121 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
122 .vsel_reg = PM886_REG_LDO5_VOUT,
123 .vsel_mask = PM886_LDO_VSEL_MASK,
124 },
125 {
126 .name = "LDO6",
127 .regulators_node = "regulators",
128 .of_match = "ldo6",
129 .ops = &pm886_ldo_ops,
130 .type = REGULATOR_VOLTAGE,
131 .enable_reg = PM886_REG_LDO_EN1,
132 .enable_mask = BIT(5),
133 .volt_table = pm886_ldo_volt_table2,
134 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
135 .vsel_reg = PM886_REG_LDO6_VOUT,
136 .vsel_mask = PM886_LDO_VSEL_MASK,
137 },
138 {
139 .name = "LDO7",
140 .regulators_node = "regulators",
141 .of_match = "ldo7",
142 .ops = &pm886_ldo_ops,
143 .type = REGULATOR_VOLTAGE,
144 .enable_reg = PM886_REG_LDO_EN1,
145 .enable_mask = BIT(6),
146 .volt_table = pm886_ldo_volt_table2,
147 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
148 .vsel_reg = PM886_REG_LDO7_VOUT,
149 .vsel_mask = PM886_LDO_VSEL_MASK,
150 },
151 {
152 .name = "LDO8",
153 .regulators_node = "regulators",
154 .of_match = "ldo8",
155 .ops = &pm886_ldo_ops,
156 .type = REGULATOR_VOLTAGE,
157 .enable_reg = PM886_REG_LDO_EN1,
158 .enable_mask = BIT(7),
159 .volt_table = pm886_ldo_volt_table2,
160 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
161 .vsel_reg = PM886_REG_LDO8_VOUT,
162 .vsel_mask = PM886_LDO_VSEL_MASK,
163 },
164 {
165 .name = "LDO9",
166 .regulators_node = "regulators",
167 .of_match = "ldo9",
168 .ops = &pm886_ldo_ops,
169 .type = REGULATOR_VOLTAGE,
170 .enable_reg = PM886_REG_LDO_EN2,
171 .enable_mask = BIT(0),
172 .volt_table = pm886_ldo_volt_table2,
173 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
174 .vsel_reg = PM886_REG_LDO9_VOUT,
175 .vsel_mask = PM886_LDO_VSEL_MASK,
176 },
177 {
178 .name = "LDO10",
179 .regulators_node = "regulators",
180 .of_match = "ldo10",
181 .ops = &pm886_ldo_ops,
182 .type = REGULATOR_VOLTAGE,
183 .enable_reg = PM886_REG_LDO_EN2,
184 .enable_mask = BIT(1),
185 .volt_table = pm886_ldo_volt_table2,
186 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
187 .vsel_reg = PM886_REG_LDO10_VOUT,
188 .vsel_mask = PM886_LDO_VSEL_MASK,
189 },
190 {
191 .name = "LDO11",
192 .regulators_node = "regulators",
193 .of_match = "ldo11",
194 .ops = &pm886_ldo_ops,
195 .type = REGULATOR_VOLTAGE,
196 .enable_reg = PM886_REG_LDO_EN2,
197 .enable_mask = BIT(2),
198 .volt_table = pm886_ldo_volt_table2,
199 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
200 .vsel_reg = PM886_REG_LDO11_VOUT,
201 .vsel_mask = PM886_LDO_VSEL_MASK,
202 },
203 {
204 .name = "LDO12",
205 .regulators_node = "regulators",
206 .of_match = "ldo12",
207 .ops = &pm886_ldo_ops,
208 .type = REGULATOR_VOLTAGE,
209 .enable_reg = PM886_REG_LDO_EN2,
210 .enable_mask = BIT(3),
211 .volt_table = pm886_ldo_volt_table2,
212 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
213 .vsel_reg = PM886_REG_LDO12_VOUT,
214 .vsel_mask = PM886_LDO_VSEL_MASK,
215 },
216 {
217 .name = "LDO13",
218 .regulators_node = "regulators",
219 .of_match = "ldo13",
220 .ops = &pm886_ldo_ops,
221 .type = REGULATOR_VOLTAGE,
222 .enable_reg = PM886_REG_LDO_EN2,
223 .enable_mask = BIT(4),
224 .volt_table = pm886_ldo_volt_table2,
225 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
226 .vsel_reg = PM886_REG_LDO13_VOUT,
227 .vsel_mask = PM886_LDO_VSEL_MASK,
228 },
229 {
230 .name = "LDO14",
231 .regulators_node = "regulators",
232 .of_match = "ldo14",
233 .ops = &pm886_ldo_ops,
234 .type = REGULATOR_VOLTAGE,
235 .enable_reg = PM886_REG_LDO_EN2,
236 .enable_mask = BIT(5),
237 .volt_table = pm886_ldo_volt_table2,
238 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
239 .vsel_reg = PM886_REG_LDO14_VOUT,
240 .vsel_mask = PM886_LDO_VSEL_MASK,
241 },
242 {
243 .name = "LDO15",
244 .regulators_node = "regulators",
245 .of_match = "ldo15",
246 .ops = &pm886_ldo_ops,
247 .type = REGULATOR_VOLTAGE,
248 .enable_reg = PM886_REG_LDO_EN2,
249 .enable_mask = BIT(6),
250 .volt_table = pm886_ldo_volt_table2,
251 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
252 .vsel_reg = PM886_REG_LDO15_VOUT,
253 .vsel_mask = PM886_LDO_VSEL_MASK,
254 },
255 {
256 .name = "LDO16",
257 .regulators_node = "regulators",
258 .of_match = "ldo16",
259 .ops = &pm886_ldo_ops,
260 .type = REGULATOR_VOLTAGE,
261 .enable_reg = PM886_REG_LDO_EN2,
262 .enable_mask = BIT(7),
263 .volt_table = pm886_ldo_volt_table3,
264 .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table3),
265 .vsel_reg = PM886_REG_LDO16_VOUT,
266 .vsel_mask = PM886_LDO_VSEL_MASK,
267 },
268 {
269 .name = "buck1",
270 .regulators_node = "regulators",
271 .of_match = "buck1",
272 .ops = &pm886_buck_ops,
273 .type = REGULATOR_VOLTAGE,
274 .n_voltages = 85,
275 .linear_ranges = pm886_buck_volt_ranges1,
276 .n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges1),
277 .vsel_reg = PM886_REG_BUCK1_VOUT,
278 .vsel_mask = PM886_BUCK_VSEL_MASK,
279 .enable_reg = PM886_REG_BUCK_EN,
280 .enable_mask = BIT(0),
281 },
282 {
283 .name = "buck2",
284 .regulators_node = "regulators",
285 .of_match = "buck2",
286 .ops = &pm886_buck_ops,
287 .type = REGULATOR_VOLTAGE,
288 .n_voltages = 115,
289 .linear_ranges = pm886_buck_volt_ranges2,
290 .n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2),
291 .vsel_reg = PM886_REG_BUCK2_VOUT,
292 .vsel_mask = PM886_BUCK_VSEL_MASK,
293 .enable_reg = PM886_REG_BUCK_EN,
294 .enable_mask = BIT(1),
295 },
296 {
297 .name = "buck3",
298 .regulators_node = "regulators",
299 .of_match = "buck3",
300 .ops = &pm886_buck_ops,
301 .type = REGULATOR_VOLTAGE,
302 .n_voltages = 115,
303 .linear_ranges = pm886_buck_volt_ranges2,
304 .n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2),
305 .vsel_reg = PM886_REG_BUCK3_VOUT,
306 .vsel_mask = PM886_BUCK_VSEL_MASK,
307 .enable_reg = PM886_REG_BUCK_EN,
308 .enable_mask = BIT(2),
309 },
310 {
311 .name = "buck4",
312 .regulators_node = "regulators",
313 .of_match = "buck4",
314 .ops = &pm886_buck_ops,
315 .type = REGULATOR_VOLTAGE,
316 .n_voltages = 115,
317 .linear_ranges = pm886_buck_volt_ranges2,
318 .n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2),
319 .vsel_reg = PM886_REG_BUCK4_VOUT,
320 .vsel_mask = PM886_BUCK_VSEL_MASK,
321 .enable_reg = PM886_REG_BUCK_EN,
322 .enable_mask = BIT(3),
323 },
324 {
325 .name = "buck5",
326 .regulators_node = "regulators",
327 .of_match = "buck5",
328 .ops = &pm886_buck_ops,
329 .type = REGULATOR_VOLTAGE,
330 .n_voltages = 115,
331 .linear_ranges = pm886_buck_volt_ranges2,
332 .n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2),
333 .vsel_reg = PM886_REG_BUCK5_VOUT,
334 .vsel_mask = PM886_BUCK_VSEL_MASK,
335 .enable_reg = PM886_REG_BUCK_EN,
336 .enable_mask = BIT(4),
337 },
338};
339
340static int pm886_regulator_probe(struct platform_device *pdev)
341{
342 struct pm886_chip *chip = dev_get_drvdata(pdev->dev.parent);
343 struct regulator_config rcfg = { };
344 struct device *dev = &pdev->dev;
345 struct regulator_desc *rdesc;
346 struct regulator_dev *rdev;
347 struct i2c_client *page;
348 struct regmap *regmap;
349
350 page = devm_i2c_new_dummy_device(dev, chip->client->adapter,
351 chip->client->addr + PM886_PAGE_OFFSET_REGULATORS);
352 if (IS_ERR(page))
353 return dev_err_probe(dev, PTR_ERR(page),
354 "Failed to initialize regulators client\n");
355
356 regmap = devm_regmap_init_i2c(page, &pm886_regulator_regmap_config);
357 if (IS_ERR(regmap))
358 return dev_err_probe(dev, PTR_ERR(regmap),
359 "Failed to initialize regulators regmap\n");
360 rcfg.regmap = regmap;
361
362 rcfg.dev = dev->parent;
363
364 for (int i = 0; i < ARRAY_SIZE(pm886_regulators); i++) {
365 rdesc = &pm886_regulators[i];
366 rdev = devm_regulator_register(dev, rdesc, &rcfg);
367 if (IS_ERR(rdev))
368 return dev_err_probe(dev, PTR_ERR(rdev),
369 "Failed to register %s\n", rdesc->name);
370 }
371
372 return 0;
373}
374
375static const struct platform_device_id pm886_regulator_id_table[] = {
376 { "88pm886-regulator", },
377 { }
378};
379MODULE_DEVICE_TABLE(platform, pm886_regulator_id_table);
380
381static struct platform_driver pm886_regulator_driver = {
382 .driver = {
383 .name = "88pm886-regulator",
384 },
385 .probe = pm886_regulator_probe,
386 .id_table = pm886_regulator_id_table,
387};
388module_platform_driver(pm886_regulator_driver);
389
390MODULE_DESCRIPTION("Marvell 88PM886 PMIC regulator driver");
391MODULE_AUTHOR("Karel Balej <balejk@matfyz.cz>");
392MODULE_LICENSE("GPL");