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99cf3af5 JB |
1 | /* |
2 | * pv88080-regulator.c - Regulator device driver for PV88080 | |
3 | * Copyright (C) 2016 Powerventure Semiconductor Ltd. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License | |
7 | * as published by the Free Software Foundation; either version 2 | |
8 | * of the License, or (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | */ | |
15 | ||
16 | #include <linux/err.h> | |
99cf3af5 JB |
17 | #include <linux/i2c.h> |
18 | #include <linux/module.h> | |
5ff00f6a | 19 | #include <linux/of.h> |
99cf3af5 JB |
20 | #include <linux/init.h> |
21 | #include <linux/slab.h> | |
22 | #include <linux/regulator/driver.h> | |
23 | #include <linux/regulator/machine.h> | |
24 | #include <linux/regmap.h> | |
25 | #include <linux/irq.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/regulator/of_regulator.h> | |
99cf3af5 JB |
28 | #include "pv88080-regulator.h" |
29 | ||
5ff00f6a | 30 | #define PV88080_MAX_REGULATORS 4 |
99cf3af5 JB |
31 | |
32 | /* PV88080 REGULATOR IDs */ | |
33 | enum { | |
34 | /* BUCKs */ | |
35 | PV88080_ID_BUCK1, | |
36 | PV88080_ID_BUCK2, | |
37 | PV88080_ID_BUCK3, | |
5ff00f6a EJ |
38 | PV88080_ID_HVBUCK, |
39 | }; | |
40 | ||
41 | enum pv88080_types { | |
42 | TYPE_PV88080_AA, | |
43 | TYPE_PV88080_BA, | |
99cf3af5 JB |
44 | }; |
45 | ||
46 | struct pv88080_regulator { | |
47 | struct regulator_desc desc; | |
48 | /* Current limiting */ | |
49 | unsigned int n_current_limits; | |
50 | const int *current_limits; | |
51 | unsigned int limit_mask; | |
5ff00f6a EJ |
52 | unsigned int mode_reg; |
53 | unsigned int limit_reg; | |
99cf3af5 JB |
54 | unsigned int conf2; |
55 | unsigned int conf5; | |
56 | }; | |
57 | ||
58 | struct pv88080 { | |
59 | struct device *dev; | |
60 | struct regmap *regmap; | |
61 | struct regulator_dev *rdev[PV88080_MAX_REGULATORS]; | |
5ff00f6a EJ |
62 | unsigned long type; |
63 | const struct pv88080_compatible_regmap *regmap_config; | |
99cf3af5 JB |
64 | }; |
65 | ||
66 | struct pv88080_buck_voltage { | |
67 | int min_uV; | |
68 | int max_uV; | |
69 | int uV_step; | |
70 | }; | |
71 | ||
5ff00f6a EJ |
72 | struct pv88080_buck_regmap { |
73 | /* REGS */ | |
74 | int buck_enable_reg; | |
75 | int buck_vsel_reg; | |
76 | int buck_mode_reg; | |
77 | int buck_limit_reg; | |
78 | int buck_vdac_range_reg; | |
79 | int buck_vrange_gain_reg; | |
80 | /* MASKS */ | |
81 | int buck_enable_mask; | |
82 | int buck_vsel_mask; | |
83 | int buck_limit_mask; | |
84 | }; | |
85 | ||
86 | struct pv88080_compatible_regmap { | |
87 | /* BUCK1, 2, 3 */ | |
88 | struct pv88080_buck_regmap buck_regmap[PV88080_MAX_REGULATORS-1]; | |
89 | /* HVBUCK */ | |
90 | int hvbuck_enable_reg; | |
91 | int hvbuck_vsel_reg; | |
92 | int hvbuck_enable_mask; | |
93 | int hvbuck_vsel_mask; | |
94 | }; | |
95 | ||
99cf3af5 JB |
96 | static const struct regmap_config pv88080_regmap_config = { |
97 | .reg_bits = 8, | |
98 | .val_bits = 8, | |
99 | }; | |
100 | ||
101 | /* Current limits array (in uA) for BUCK1, BUCK2, BUCK3. | |
102 | * Entry indexes corresponds to register values. | |
103 | */ | |
104 | ||
105 | static const int pv88080_buck1_limits[] = { | |
106 | 3230000, 5130000, 6960000, 8790000 | |
107 | }; | |
108 | ||
109 | static const int pv88080_buck23_limits[] = { | |
110 | 1496000, 2393000, 3291000, 4189000 | |
111 | }; | |
112 | ||
113 | static const struct pv88080_buck_voltage pv88080_buck_vol[2] = { | |
114 | { | |
115 | .min_uV = 600000, | |
116 | .max_uV = 1393750, | |
117 | .uV_step = 6250, | |
118 | }, | |
119 | { | |
120 | .min_uV = 1400000, | |
121 | .max_uV = 2193750, | |
122 | .uV_step = 6250, | |
123 | }, | |
124 | }; | |
125 | ||
5ff00f6a EJ |
126 | static const struct pv88080_compatible_regmap pv88080_aa_regs = { |
127 | /* BUCK1 */ | |
128 | .buck_regmap[0] = { | |
129 | .buck_enable_reg = PV88080AA_REG_BUCK1_CONF0, | |
130 | .buck_vsel_reg = PV88080AA_REG_BUCK1_CONF0, | |
131 | .buck_mode_reg = PV88080AA_REG_BUCK1_CONF1, | |
132 | .buck_limit_reg = PV88080AA_REG_BUCK1_CONF1, | |
133 | .buck_vdac_range_reg = PV88080AA_REG_BUCK1_CONF2, | |
134 | .buck_vrange_gain_reg = PV88080AA_REG_BUCK1_CONF5, | |
135 | .buck_enable_mask = PV88080_BUCK1_EN, | |
136 | .buck_vsel_mask = PV88080_VBUCK1_MASK, | |
137 | .buck_limit_mask = PV88080_BUCK1_ILIM_MASK, | |
138 | }, | |
139 | /* BUCK2 */ | |
140 | .buck_regmap[1] = { | |
141 | .buck_enable_reg = PV88080AA_REG_BUCK2_CONF0, | |
142 | .buck_vsel_reg = PV88080AA_REG_BUCK2_CONF0, | |
143 | .buck_mode_reg = PV88080AA_REG_BUCK2_CONF1, | |
144 | .buck_limit_reg = PV88080AA_REG_BUCK2_CONF1, | |
145 | .buck_vdac_range_reg = PV88080AA_REG_BUCK2_CONF2, | |
146 | .buck_vrange_gain_reg = PV88080AA_REG_BUCK2_CONF5, | |
147 | .buck_enable_mask = PV88080_BUCK2_EN, | |
148 | .buck_vsel_mask = PV88080_VBUCK2_MASK, | |
149 | .buck_limit_mask = PV88080_BUCK2_ILIM_MASK, | |
150 | }, | |
151 | /* BUCK3 */ | |
152 | .buck_regmap[2] = { | |
153 | .buck_enable_reg = PV88080AA_REG_BUCK3_CONF0, | |
154 | .buck_vsel_reg = PV88080AA_REG_BUCK3_CONF0, | |
155 | .buck_mode_reg = PV88080AA_REG_BUCK3_CONF1, | |
156 | .buck_limit_reg = PV88080AA_REG_BUCK3_CONF1, | |
157 | .buck_vdac_range_reg = PV88080AA_REG_BUCK3_CONF2, | |
158 | .buck_vrange_gain_reg = PV88080AA_REG_BUCK3_CONF5, | |
159 | .buck_enable_mask = PV88080_BUCK3_EN, | |
160 | .buck_vsel_mask = PV88080_VBUCK3_MASK, | |
161 | .buck_limit_mask = PV88080_BUCK3_ILIM_MASK, | |
162 | }, | |
163 | /* HVBUCK */ | |
164 | .hvbuck_enable_reg = PV88080AA_REG_HVBUCK_CONF2, | |
165 | .hvbuck_vsel_reg = PV88080AA_REG_HVBUCK_CONF1, | |
166 | .hvbuck_enable_mask = PV88080_HVBUCK_EN, | |
167 | .hvbuck_vsel_mask = PV88080_VHVBUCK_MASK, | |
168 | }; | |
169 | ||
170 | static const struct pv88080_compatible_regmap pv88080_ba_regs = { | |
171 | /* BUCK1 */ | |
172 | .buck_regmap[0] = { | |
173 | .buck_enable_reg = PV88080BA_REG_BUCK1_CONF0, | |
174 | .buck_vsel_reg = PV88080BA_REG_BUCK1_CONF0, | |
175 | .buck_mode_reg = PV88080BA_REG_BUCK1_CONF1, | |
176 | .buck_limit_reg = PV88080BA_REG_BUCK1_CONF1, | |
177 | .buck_vdac_range_reg = PV88080BA_REG_BUCK1_CONF2, | |
178 | .buck_vrange_gain_reg = PV88080BA_REG_BUCK1_CONF5, | |
179 | .buck_enable_mask = PV88080_BUCK1_EN, | |
180 | .buck_vsel_mask = PV88080_VBUCK1_MASK, | |
181 | .buck_limit_mask = PV88080_BUCK1_ILIM_MASK, | |
182 | }, | |
183 | /* BUCK2 */ | |
184 | .buck_regmap[1] = { | |
185 | .buck_enable_reg = PV88080BA_REG_BUCK2_CONF0, | |
186 | .buck_vsel_reg = PV88080BA_REG_BUCK2_CONF0, | |
187 | .buck_mode_reg = PV88080BA_REG_BUCK2_CONF1, | |
188 | .buck_limit_reg = PV88080BA_REG_BUCK2_CONF1, | |
189 | .buck_vdac_range_reg = PV88080BA_REG_BUCK2_CONF2, | |
190 | .buck_vrange_gain_reg = PV88080BA_REG_BUCK2_CONF5, | |
191 | .buck_enable_mask = PV88080_BUCK2_EN, | |
192 | .buck_vsel_mask = PV88080_VBUCK2_MASK, | |
193 | .buck_limit_mask = PV88080_BUCK2_ILIM_MASK, | |
194 | }, | |
195 | /* BUCK3 */ | |
196 | .buck_regmap[2] = { | |
197 | .buck_enable_reg = PV88080BA_REG_BUCK3_CONF0, | |
198 | .buck_vsel_reg = PV88080BA_REG_BUCK3_CONF0, | |
199 | .buck_mode_reg = PV88080BA_REG_BUCK3_CONF1, | |
200 | .buck_limit_reg = PV88080BA_REG_BUCK3_CONF1, | |
201 | .buck_vdac_range_reg = PV88080BA_REG_BUCK3_CONF2, | |
202 | .buck_vrange_gain_reg = PV88080BA_REG_BUCK3_CONF5, | |
203 | .buck_enable_mask = PV88080_BUCK3_EN, | |
204 | .buck_vsel_mask = PV88080_VBUCK3_MASK, | |
205 | .buck_limit_mask = PV88080_BUCK3_ILIM_MASK, | |
206 | }, | |
207 | /* HVBUCK */ | |
208 | .hvbuck_enable_reg = PV88080BA_REG_HVBUCK_CONF2, | |
209 | .hvbuck_vsel_reg = PV88080BA_REG_HVBUCK_CONF1, | |
210 | .hvbuck_enable_mask = PV88080_HVBUCK_EN, | |
211 | .hvbuck_vsel_mask = PV88080_VHVBUCK_MASK, | |
212 | }; | |
213 | ||
214 | #ifdef CONFIG_OF | |
215 | static const struct of_device_id pv88080_dt_ids[] = { | |
216 | { .compatible = "pvs,pv88080", .data = (void *)TYPE_PV88080_AA }, | |
217 | { .compatible = "pvs,pv88080-aa", .data = (void *)TYPE_PV88080_AA }, | |
218 | { .compatible = "pvs,pv88080-ba", .data = (void *)TYPE_PV88080_BA }, | |
219 | {}, | |
220 | }; | |
221 | MODULE_DEVICE_TABLE(of, pv88080_dt_ids); | |
222 | #endif | |
223 | ||
99cf3af5 JB |
224 | static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev) |
225 | { | |
226 | struct pv88080_regulator *info = rdev_get_drvdata(rdev); | |
227 | unsigned int data; | |
228 | int ret, mode = 0; | |
229 | ||
5ff00f6a | 230 | ret = regmap_read(rdev->regmap, info->mode_reg, &data); |
99cf3af5 JB |
231 | if (ret < 0) |
232 | return ret; | |
233 | ||
234 | switch (data & PV88080_BUCK1_MODE_MASK) { | |
235 | case PV88080_BUCK_MODE_SYNC: | |
236 | mode = REGULATOR_MODE_FAST; | |
237 | break; | |
238 | case PV88080_BUCK_MODE_AUTO: | |
239 | mode = REGULATOR_MODE_NORMAL; | |
240 | break; | |
241 | case PV88080_BUCK_MODE_SLEEP: | |
242 | mode = REGULATOR_MODE_STANDBY; | |
243 | break; | |
244 | default: | |
245 | return -EINVAL; | |
246 | } | |
247 | ||
248 | return mode; | |
249 | } | |
250 | ||
251 | static int pv88080_buck_set_mode(struct regulator_dev *rdev, | |
252 | unsigned int mode) | |
253 | { | |
254 | struct pv88080_regulator *info = rdev_get_drvdata(rdev); | |
255 | int val = 0; | |
256 | ||
257 | switch (mode) { | |
258 | case REGULATOR_MODE_FAST: | |
259 | val = PV88080_BUCK_MODE_SYNC; | |
260 | break; | |
261 | case REGULATOR_MODE_NORMAL: | |
262 | val = PV88080_BUCK_MODE_AUTO; | |
263 | break; | |
264 | case REGULATOR_MODE_STANDBY: | |
265 | val = PV88080_BUCK_MODE_SLEEP; | |
266 | break; | |
267 | default: | |
268 | return -EINVAL; | |
269 | } | |
270 | ||
5ff00f6a | 271 | return regmap_update_bits(rdev->regmap, info->mode_reg, |
99cf3af5 JB |
272 | PV88080_BUCK1_MODE_MASK, val); |
273 | } | |
274 | ||
275 | static int pv88080_set_current_limit(struct regulator_dev *rdev, int min, | |
276 | int max) | |
277 | { | |
278 | struct pv88080_regulator *info = rdev_get_drvdata(rdev); | |
279 | int i; | |
280 | ||
281 | /* search for closest to maximum */ | |
282 | for (i = info->n_current_limits; i >= 0; i--) { | |
283 | if (min <= info->current_limits[i] | |
284 | && max >= info->current_limits[i]) { | |
285 | return regmap_update_bits(rdev->regmap, | |
5ff00f6a | 286 | info->limit_reg, |
99cf3af5 JB |
287 | info->limit_mask, |
288 | i << PV88080_BUCK1_ILIM_SHIFT); | |
289 | } | |
290 | } | |
291 | ||
292 | return -EINVAL; | |
293 | } | |
294 | ||
295 | static int pv88080_get_current_limit(struct regulator_dev *rdev) | |
296 | { | |
297 | struct pv88080_regulator *info = rdev_get_drvdata(rdev); | |
298 | unsigned int data; | |
299 | int ret; | |
300 | ||
5ff00f6a | 301 | ret = regmap_read(rdev->regmap, info->limit_reg, &data); |
99cf3af5 JB |
302 | if (ret < 0) |
303 | return ret; | |
304 | ||
305 | data = (data & info->limit_mask) >> PV88080_BUCK1_ILIM_SHIFT; | |
306 | return info->current_limits[data]; | |
307 | } | |
308 | ||
309 | static struct regulator_ops pv88080_buck_ops = { | |
310 | .get_mode = pv88080_buck_get_mode, | |
311 | .set_mode = pv88080_buck_set_mode, | |
312 | .enable = regulator_enable_regmap, | |
313 | .disable = regulator_disable_regmap, | |
314 | .is_enabled = regulator_is_enabled_regmap, | |
315 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
316 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
317 | .list_voltage = regulator_list_voltage_linear, | |
318 | .set_current_limit = pv88080_set_current_limit, | |
319 | .get_current_limit = pv88080_get_current_limit, | |
320 | }; | |
321 | ||
5ff00f6a EJ |
322 | static struct regulator_ops pv88080_hvbuck_ops = { |
323 | .enable = regulator_enable_regmap, | |
324 | .disable = regulator_disable_regmap, | |
325 | .is_enabled = regulator_is_enabled_regmap, | |
326 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
327 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
328 | .list_voltage = regulator_list_voltage_linear, | |
329 | }; | |
330 | ||
99cf3af5 JB |
331 | #define PV88080_BUCK(chip, regl_name, min, step, max, limits_array) \ |
332 | {\ | |
333 | .desc = {\ | |
334 | .id = chip##_ID_##regl_name,\ | |
335 | .name = __stringify(chip##_##regl_name),\ | |
336 | .of_match = of_match_ptr(#regl_name),\ | |
337 | .regulators_node = of_match_ptr("regulators"),\ | |
338 | .type = REGULATOR_VOLTAGE,\ | |
339 | .owner = THIS_MODULE,\ | |
340 | .ops = &pv88080_buck_ops,\ | |
341 | .min_uV = min, \ | |
342 | .uV_step = step, \ | |
343 | .n_voltages = ((max) - (min))/(step) + 1, \ | |
99cf3af5 JB |
344 | },\ |
345 | .current_limits = limits_array, \ | |
346 | .n_current_limits = ARRAY_SIZE(limits_array), \ | |
5ff00f6a EJ |
347 | } |
348 | ||
349 | #define PV88080_HVBUCK(chip, regl_name, min, step, max) \ | |
350 | {\ | |
351 | .desc = {\ | |
352 | .id = chip##_ID_##regl_name,\ | |
353 | .name = __stringify(chip##_##regl_name),\ | |
354 | .of_match = of_match_ptr(#regl_name),\ | |
355 | .regulators_node = of_match_ptr("regulators"),\ | |
356 | .type = REGULATOR_VOLTAGE,\ | |
357 | .owner = THIS_MODULE,\ | |
358 | .ops = &pv88080_hvbuck_ops,\ | |
359 | .min_uV = min, \ | |
360 | .uV_step = step, \ | |
361 | .n_voltages = ((max) - (min))/(step) + 1, \ | |
362 | },\ | |
99cf3af5 JB |
363 | } |
364 | ||
365 | static struct pv88080_regulator pv88080_regulator_info[] = { | |
366 | PV88080_BUCK(PV88080, BUCK1, 600000, 6250, 1393750, | |
367 | pv88080_buck1_limits), | |
368 | PV88080_BUCK(PV88080, BUCK2, 600000, 6250, 1393750, | |
369 | pv88080_buck23_limits), | |
370 | PV88080_BUCK(PV88080, BUCK3, 600000, 6250, 1393750, | |
371 | pv88080_buck23_limits), | |
5ff00f6a | 372 | PV88080_HVBUCK(PV88080, HVBUCK, 0, 5000, 1275000), |
99cf3af5 JB |
373 | }; |
374 | ||
375 | static irqreturn_t pv88080_irq_handler(int irq, void *data) | |
376 | { | |
377 | struct pv88080 *chip = data; | |
378 | int i, reg_val, err, ret = IRQ_NONE; | |
379 | ||
380 | err = regmap_read(chip->regmap, PV88080_REG_EVENT_A, ®_val); | |
381 | if (err < 0) | |
382 | goto error_i2c; | |
383 | ||
384 | if (reg_val & PV88080_E_VDD_FLT) { | |
385 | for (i = 0; i < PV88080_MAX_REGULATORS; i++) { | |
386 | if (chip->rdev[i] != NULL) { | |
387 | regulator_notifier_call_chain(chip->rdev[i], | |
388 | REGULATOR_EVENT_UNDER_VOLTAGE, | |
389 | NULL); | |
390 | } | |
391 | } | |
392 | ||
393 | err = regmap_write(chip->regmap, PV88080_REG_EVENT_A, | |
394 | PV88080_E_VDD_FLT); | |
395 | if (err < 0) | |
396 | goto error_i2c; | |
397 | ||
398 | ret = IRQ_HANDLED; | |
399 | } | |
400 | ||
401 | if (reg_val & PV88080_E_OVER_TEMP) { | |
402 | for (i = 0; i < PV88080_MAX_REGULATORS; i++) { | |
403 | if (chip->rdev[i] != NULL) { | |
404 | regulator_notifier_call_chain(chip->rdev[i], | |
405 | REGULATOR_EVENT_OVER_TEMP, | |
406 | NULL); | |
407 | } | |
408 | } | |
409 | ||
410 | err = regmap_write(chip->regmap, PV88080_REG_EVENT_A, | |
411 | PV88080_E_OVER_TEMP); | |
412 | if (err < 0) | |
413 | goto error_i2c; | |
414 | ||
415 | ret = IRQ_HANDLED; | |
416 | } | |
417 | ||
418 | return ret; | |
419 | ||
420 | error_i2c: | |
421 | dev_err(chip->dev, "I2C error : %d\n", err); | |
422 | return IRQ_NONE; | |
423 | } | |
424 | ||
425 | /* | |
426 | * I2C driver interface functions | |
427 | */ | |
428 | static int pv88080_i2c_probe(struct i2c_client *i2c, | |
429 | const struct i2c_device_id *id) | |
430 | { | |
431 | struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev); | |
432 | struct pv88080 *chip; | |
5ff00f6a EJ |
433 | const struct pv88080_compatible_regmap *regmap_config; |
434 | const struct of_device_id *match; | |
99cf3af5 JB |
435 | struct regulator_config config = { }; |
436 | int i, error, ret; | |
437 | unsigned int conf2, conf5; | |
438 | ||
439 | chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88080), GFP_KERNEL); | |
440 | if (!chip) | |
441 | return -ENOMEM; | |
442 | ||
443 | chip->dev = &i2c->dev; | |
444 | chip->regmap = devm_regmap_init_i2c(i2c, &pv88080_regmap_config); | |
445 | if (IS_ERR(chip->regmap)) { | |
446 | error = PTR_ERR(chip->regmap); | |
447 | dev_err(chip->dev, "Failed to allocate register map: %d\n", | |
448 | error); | |
449 | return error; | |
450 | } | |
451 | ||
5ff00f6a EJ |
452 | if (i2c->dev.of_node) { |
453 | match = of_match_node(pv88080_dt_ids, i2c->dev.of_node); | |
454 | if (!match) { | |
455 | dev_err(chip->dev, "Failed to get of_match_node\n"); | |
456 | return -EINVAL; | |
457 | } | |
458 | chip->type = (unsigned long)match->data; | |
459 | } else { | |
460 | chip->type = id->driver_data; | |
461 | } | |
462 | ||
99cf3af5 JB |
463 | i2c_set_clientdata(i2c, chip); |
464 | ||
465 | if (i2c->irq != 0) { | |
466 | ret = regmap_write(chip->regmap, PV88080_REG_MASK_A, 0xFF); | |
467 | if (ret < 0) { | |
468 | dev_err(chip->dev, | |
469 | "Failed to mask A reg: %d\n", ret); | |
470 | return ret; | |
471 | } | |
472 | ret = regmap_write(chip->regmap, PV88080_REG_MASK_B, 0xFF); | |
473 | if (ret < 0) { | |
474 | dev_err(chip->dev, | |
475 | "Failed to mask B reg: %d\n", ret); | |
476 | return ret; | |
477 | } | |
478 | ret = regmap_write(chip->regmap, PV88080_REG_MASK_C, 0xFF); | |
479 | if (ret < 0) { | |
480 | dev_err(chip->dev, | |
481 | "Failed to mask C reg: %d\n", ret); | |
482 | return ret; | |
483 | } | |
484 | ||
485 | ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL, | |
486 | pv88080_irq_handler, | |
487 | IRQF_TRIGGER_LOW|IRQF_ONESHOT, | |
488 | "pv88080", chip); | |
489 | if (ret != 0) { | |
490 | dev_err(chip->dev, "Failed to request IRQ: %d\n", | |
491 | i2c->irq); | |
492 | return ret; | |
493 | } | |
494 | ||
495 | ret = regmap_update_bits(chip->regmap, PV88080_REG_MASK_A, | |
496 | PV88080_M_VDD_FLT | PV88080_M_OVER_TEMP, 0); | |
497 | if (ret < 0) { | |
498 | dev_err(chip->dev, | |
499 | "Failed to update mask reg: %d\n", ret); | |
500 | return ret; | |
501 | } | |
99cf3af5 JB |
502 | } else { |
503 | dev_warn(chip->dev, "No IRQ configured\n"); | |
504 | } | |
505 | ||
5ff00f6a EJ |
506 | switch (chip->type) { |
507 | case TYPE_PV88080_AA: | |
508 | chip->regmap_config = &pv88080_aa_regs; | |
509 | break; | |
510 | case TYPE_PV88080_BA: | |
511 | chip->regmap_config = &pv88080_ba_regs; | |
512 | break; | |
513 | } | |
514 | ||
515 | regmap_config = chip->regmap_config; | |
99cf3af5 JB |
516 | config.dev = chip->dev; |
517 | config.regmap = chip->regmap; | |
518 | ||
5ff00f6a EJ |
519 | /* Registeration for BUCK1, 2, 3 */ |
520 | for (i = 0; i < PV88080_MAX_REGULATORS-1; i++) { | |
99cf3af5 JB |
521 | if (init_data) |
522 | config.init_data = &init_data[i]; | |
523 | ||
5ff00f6a EJ |
524 | pv88080_regulator_info[i].limit_reg |
525 | = regmap_config->buck_regmap[i].buck_limit_reg; | |
526 | pv88080_regulator_info[i].limit_mask | |
527 | = regmap_config->buck_regmap[i].buck_limit_mask; | |
528 | pv88080_regulator_info[i].mode_reg | |
529 | = regmap_config->buck_regmap[i].buck_mode_reg; | |
530 | pv88080_regulator_info[i].conf2 | |
531 | = regmap_config->buck_regmap[i].buck_vdac_range_reg; | |
532 | pv88080_regulator_info[i].conf5 | |
533 | = regmap_config->buck_regmap[i].buck_vrange_gain_reg; | |
534 | pv88080_regulator_info[i].desc.enable_reg | |
535 | = regmap_config->buck_regmap[i].buck_enable_reg; | |
536 | pv88080_regulator_info[i].desc.enable_mask | |
537 | = regmap_config->buck_regmap[i].buck_enable_mask; | |
538 | pv88080_regulator_info[i].desc.vsel_reg | |
539 | = regmap_config->buck_regmap[i].buck_vsel_reg; | |
540 | pv88080_regulator_info[i].desc.vsel_mask | |
541 | = regmap_config->buck_regmap[i].buck_vsel_mask; | |
542 | ||
99cf3af5 | 543 | ret = regmap_read(chip->regmap, |
5ff00f6a | 544 | pv88080_regulator_info[i].conf2, &conf2); |
99cf3af5 JB |
545 | if (ret < 0) |
546 | return ret; | |
99cf3af5 JB |
547 | conf2 = ((conf2 >> PV88080_BUCK_VDAC_RANGE_SHIFT) & |
548 | PV88080_BUCK_VDAC_RANGE_MASK); | |
549 | ||
550 | ret = regmap_read(chip->regmap, | |
5ff00f6a | 551 | pv88080_regulator_info[i].conf5, &conf5); |
99cf3af5 JB |
552 | if (ret < 0) |
553 | return ret; | |
99cf3af5 JB |
554 | conf5 = ((conf5 >> PV88080_BUCK_VRANGE_GAIN_SHIFT) & |
555 | PV88080_BUCK_VRANGE_GAIN_MASK); | |
556 | ||
557 | pv88080_regulator_info[i].desc.min_uV = | |
558 | pv88080_buck_vol[conf2].min_uV * (conf5+1); | |
559 | pv88080_regulator_info[i].desc.uV_step = | |
560 | pv88080_buck_vol[conf2].uV_step * (conf5+1); | |
561 | pv88080_regulator_info[i].desc.n_voltages = | |
562 | ((pv88080_buck_vol[conf2].max_uV * (conf5+1)) | |
563 | - (pv88080_regulator_info[i].desc.min_uV)) | |
564 | /(pv88080_regulator_info[i].desc.uV_step) + 1; | |
565 | ||
566 | config.driver_data = (void *)&pv88080_regulator_info[i]; | |
567 | chip->rdev[i] = devm_regulator_register(chip->dev, | |
568 | &pv88080_regulator_info[i].desc, &config); | |
569 | if (IS_ERR(chip->rdev[i])) { | |
570 | dev_err(chip->dev, | |
571 | "Failed to register PV88080 regulator\n"); | |
572 | return PTR_ERR(chip->rdev[i]); | |
573 | } | |
574 | } | |
575 | ||
5ff00f6a EJ |
576 | pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_reg |
577 | = regmap_config->hvbuck_enable_reg; | |
578 | pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_mask | |
579 | = regmap_config->hvbuck_enable_mask; | |
580 | pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_reg | |
581 | = regmap_config->hvbuck_vsel_reg; | |
582 | pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_mask | |
583 | = regmap_config->hvbuck_vsel_mask; | |
584 | ||
585 | /* Registeration for HVBUCK */ | |
586 | if (init_data) | |
587 | config.init_data = &init_data[PV88080_ID_HVBUCK]; | |
588 | ||
589 | config.driver_data = (void *)&pv88080_regulator_info[PV88080_ID_HVBUCK]; | |
590 | chip->rdev[PV88080_ID_HVBUCK] = devm_regulator_register(chip->dev, | |
591 | &pv88080_regulator_info[PV88080_ID_HVBUCK].desc, &config); | |
592 | if (IS_ERR(chip->rdev[PV88080_ID_HVBUCK])) { | |
593 | dev_err(chip->dev, "Failed to register PV88080 regulator\n"); | |
594 | return PTR_ERR(chip->rdev[PV88080_ID_HVBUCK]); | |
595 | } | |
596 | ||
99cf3af5 JB |
597 | return 0; |
598 | } | |
599 | ||
600 | static const struct i2c_device_id pv88080_i2c_id[] = { | |
5ff00f6a EJ |
601 | { "pv88080", TYPE_PV88080_AA }, |
602 | { "pv88080-aa", TYPE_PV88080_AA }, | |
603 | { "pv88080-ba", TYPE_PV88080_BA }, | |
99cf3af5 JB |
604 | {}, |
605 | }; | |
606 | MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id); | |
607 | ||
99cf3af5 JB |
608 | static struct i2c_driver pv88080_regulator_driver = { |
609 | .driver = { | |
610 | .name = "pv88080", | |
611 | .of_match_table = of_match_ptr(pv88080_dt_ids), | |
612 | }, | |
613 | .probe = pv88080_i2c_probe, | |
614 | .id_table = pv88080_i2c_id, | |
615 | }; | |
616 | ||
617 | module_i2c_driver(pv88080_regulator_driver); | |
618 | ||
619 | MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>"); | |
620 | MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88080"); | |
621 | MODULE_LICENSE("GPL"); |