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1/*
2 * Regulator driver for Rockchip RK808
3 *
4 * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
5 *
6 * Author: Chris Zhong <zyw@rock-chips.com>
7 * Author: Zhang Qing <zhangqing@rock-chips.com>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms and conditions of the GNU General Public License,
11 * version 2, as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * more details.
17 */
18
19#include <linux/delay.h>
20#include <linux/gpio.h>
21#include <linux/i2c.h>
22#include <linux/module.h>
23#include <linux/of_device.h>
24#include <linux/of_gpio.h>
25#include <linux/mfd/rk808.h>
26#include <linux/regulator/driver.h>
27#include <linux/regulator/of_regulator.h>
28#include <linux/gpio/consumer.h>
29
30/* Field Definitions */
31#define RK808_BUCK_VSEL_MASK 0x3f
32#define RK808_BUCK4_VSEL_MASK 0xf
33#define RK808_LDO_VSEL_MASK 0x1f
34
35/* Ramp rate definitions for buck1 / buck2 only */
36#define RK808_RAMP_RATE_OFFSET 3
37#define RK808_RAMP_RATE_MASK (3 << RK808_RAMP_RATE_OFFSET)
38#define RK808_RAMP_RATE_2MV_PER_US (0 << RK808_RAMP_RATE_OFFSET)
39#define RK808_RAMP_RATE_4MV_PER_US (1 << RK808_RAMP_RATE_OFFSET)
40#define RK808_RAMP_RATE_6MV_PER_US (2 << RK808_RAMP_RATE_OFFSET)
41#define RK808_RAMP_RATE_10MV_PER_US (3 << RK808_RAMP_RATE_OFFSET)
42
43#define RK808_DVS2_POL BIT(2)
44#define RK808_DVS1_POL BIT(1)
45
46/* Offset from XXX_ON_VSEL to XXX_SLP_VSEL */
47#define RK808_SLP_REG_OFFSET 1
48
49/* Offset from XXX_ON_VSEL to XXX_DVS_VSEL */
50#define RK808_DVS_REG_OFFSET 2
51
52/* Offset from XXX_EN_REG to SLEEP_SET_OFF_XXX */
53#define RK808_SLP_SET_OFF_REG_OFFSET 2
54
55/* max steps for increase voltage of Buck1/2, equal 100mv*/
56#define MAX_STEPS_ONE_TIME 8
57
58struct rk808_regulator_data {
59 struct gpio_desc *dvs_gpio[2];
60};
61
62static const int rk808_buck_config_regs[] = {
63 RK808_BUCK1_CONFIG_REG,
64 RK808_BUCK2_CONFIG_REG,
65 RK808_BUCK3_CONFIG_REG,
66 RK808_BUCK4_CONFIG_REG,
67};
68
69static const struct regulator_linear_range rk808_buck_voltage_ranges[] = {
70 REGULATOR_LINEAR_RANGE(712500, 0, 63, 12500),
71};
72
73static const struct regulator_linear_range rk808_buck4_voltage_ranges[] = {
74 REGULATOR_LINEAR_RANGE(1800000, 0, 15, 100000),
75};
76
77static const struct regulator_linear_range rk808_ldo_voltage_ranges[] = {
78 REGULATOR_LINEAR_RANGE(1800000, 0, 16, 100000),
79};
80
81static const struct regulator_linear_range rk808_ldo3_voltage_ranges[] = {
82 REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000),
83 REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0),
84};
85
86static const struct regulator_linear_range rk808_ldo6_voltage_ranges[] = {
87 REGULATOR_LINEAR_RANGE(800000, 0, 17, 100000),
88};
89
90static int rk808_buck1_2_get_voltage_sel_regmap(struct regulator_dev *rdev)
91{
92 struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
93 int id = rdev->desc->id - RK808_ID_DCDC1;
94 struct gpio_desc *gpio = pdata->dvs_gpio[id];
95 unsigned int val;
96 int ret;
97
98 if (!gpio || gpiod_get_value(gpio) == 0)
99 return regulator_get_voltage_sel_regmap(rdev);
100
101 ret = regmap_read(rdev->regmap,
102 rdev->desc->vsel_reg + RK808_DVS_REG_OFFSET,
103 &val);
104 if (ret != 0)
105 return ret;
106
107 val &= rdev->desc->vsel_mask;
108 val >>= ffs(rdev->desc->vsel_mask) - 1;
109
110 return val;
111}
112
113static int rk808_buck1_2_i2c_set_voltage_sel(struct regulator_dev *rdev,
114 unsigned sel)
115{
116 int ret, delta_sel;
117 unsigned int old_sel, tmp, val, mask = rdev->desc->vsel_mask;
118
119 ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val);
120 if (ret != 0)
121 return ret;
122
123 tmp = val & ~mask;
124 old_sel = val & mask;
125 old_sel >>= ffs(mask) - 1;
126 delta_sel = sel - old_sel;
127
128 /*
129 * If directly modify the register to change the voltage, we will face
130 * the risk of overshoot. Put it into a multi-step, can effectively
131 * avoid this problem, a step is 100mv here.
132 */
133 while (delta_sel > MAX_STEPS_ONE_TIME) {
134 old_sel += MAX_STEPS_ONE_TIME;
135 val = old_sel << (ffs(mask) - 1);
136 val |= tmp;
137
138 /*
139 * i2c is 400kHz (2.5us per bit) and we must transmit _at least_
140 * 3 bytes (24 bits) plus start and stop so 26 bits. So we've
141 * got more than 65 us between each voltage change and thus
142 * won't ramp faster than ~1500 uV / us.
143 */
144 ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val);
145 delta_sel = sel - old_sel;
146 }
147
148 sel <<= ffs(mask) - 1;
149 val = tmp | sel;
150 ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val);
151
152 /*
153 * When we change the voltage register directly, the ramp rate is about
154 * 100000uv/us, wait 1us to make sure the target voltage to be stable,
155 * so we needn't wait extra time after that.
156 */
157 udelay(1);
158
159 return ret;
160}
161
162static int rk808_buck1_2_set_voltage_sel(struct regulator_dev *rdev,
163 unsigned sel)
164{
165 struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
166 int id = rdev->desc->id - RK808_ID_DCDC1;
167 struct gpio_desc *gpio = pdata->dvs_gpio[id];
168 unsigned int reg = rdev->desc->vsel_reg;
169 unsigned old_sel;
170 int ret, gpio_level;
171
172 if (!gpio)
173 return rk808_buck1_2_i2c_set_voltage_sel(rdev, sel);
174
175 gpio_level = gpiod_get_value(gpio);
176 if (gpio_level == 0) {
177 reg += RK808_DVS_REG_OFFSET;
178 ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &old_sel);
179 } else {
180 ret = regmap_read(rdev->regmap,
181 reg + RK808_DVS_REG_OFFSET,
182 &old_sel);
183 }
184
185 if (ret != 0)
186 return ret;
187
188 sel <<= ffs(rdev->desc->vsel_mask) - 1;
189 sel |= old_sel & ~rdev->desc->vsel_mask;
190
191 ret = regmap_write(rdev->regmap, reg, sel);
192 if (ret)
193 return ret;
194
195 gpiod_set_value(gpio, !gpio_level);
196
197 return ret;
198}
199
200static int rk808_buck1_2_set_voltage_time_sel(struct regulator_dev *rdev,
201 unsigned int old_selector,
202 unsigned int new_selector)
203{
204 struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
205 int id = rdev->desc->id - RK808_ID_DCDC1;
206 struct gpio_desc *gpio = pdata->dvs_gpio[id];
207
208 /* if there is no dvs1/2 pin, we don't need wait extra time here. */
209 if (!gpio)
210 return 0;
211
212 return regulator_set_voltage_time_sel(rdev, old_selector, new_selector);
213}
214
215static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
216{
217 unsigned int ramp_value = RK808_RAMP_RATE_10MV_PER_US;
218 unsigned int reg = rk808_buck_config_regs[rdev->desc->id -
219 RK808_ID_DCDC1];
220
221 switch (ramp_delay) {
222 case 1 ... 2000:
223 ramp_value = RK808_RAMP_RATE_2MV_PER_US;
224 break;
225 case 2001 ... 4000:
226 ramp_value = RK808_RAMP_RATE_4MV_PER_US;
227 break;
228 case 4001 ... 6000:
229 ramp_value = RK808_RAMP_RATE_6MV_PER_US;
230 break;
231 case 6001 ... 10000:
232 break;
233 default:
234 pr_warn("%s ramp_delay: %d not supported, setting 10000\n",
235 rdev->desc->name, ramp_delay);
236 }
237
238 return regmap_update_bits(rdev->regmap, reg,
239 RK808_RAMP_RATE_MASK, ramp_value);
240}
241
242static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
243{
244 unsigned int reg;
245 int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
246
247 if (sel < 0)
248 return -EINVAL;
249
250 reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
251
252 return regmap_update_bits(rdev->regmap, reg,
253 rdev->desc->vsel_mask,
254 sel);
255}
256
257static int rk808_set_suspend_enable(struct regulator_dev *rdev)
258{
259 unsigned int reg;
260
261 reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
262
263 return regmap_update_bits(rdev->regmap, reg,
264 rdev->desc->enable_mask,
265 0);
266}
267
268static int rk808_set_suspend_disable(struct regulator_dev *rdev)
269{
270 unsigned int reg;
271
272 reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
273
274 return regmap_update_bits(rdev->regmap, reg,
275 rdev->desc->enable_mask,
276 rdev->desc->enable_mask);
277}
278
279static struct regulator_ops rk808_buck1_2_ops = {
280 .list_voltage = regulator_list_voltage_linear_range,
281 .map_voltage = regulator_map_voltage_linear_range,
282 .get_voltage_sel = rk808_buck1_2_get_voltage_sel_regmap,
283 .set_voltage_sel = rk808_buck1_2_set_voltage_sel,
284 .set_voltage_time_sel = rk808_buck1_2_set_voltage_time_sel,
285 .enable = regulator_enable_regmap,
286 .disable = regulator_disable_regmap,
287 .is_enabled = regulator_is_enabled_regmap,
288 .set_ramp_delay = rk808_set_ramp_delay,
289 .set_suspend_voltage = rk808_set_suspend_voltage,
290 .set_suspend_enable = rk808_set_suspend_enable,
291 .set_suspend_disable = rk808_set_suspend_disable,
292};
293
294static struct regulator_ops rk808_reg_ops = {
295 .list_voltage = regulator_list_voltage_linear_range,
296 .map_voltage = regulator_map_voltage_linear_range,
297 .get_voltage_sel = regulator_get_voltage_sel_regmap,
298 .set_voltage_sel = regulator_set_voltage_sel_regmap,
299 .enable = regulator_enable_regmap,
300 .disable = regulator_disable_regmap,
301 .is_enabled = regulator_is_enabled_regmap,
302 .set_suspend_voltage = rk808_set_suspend_voltage,
303 .set_suspend_enable = rk808_set_suspend_enable,
304 .set_suspend_disable = rk808_set_suspend_disable,
305};
306
307static struct regulator_ops rk808_switch_ops = {
308 .enable = regulator_enable_regmap,
309 .disable = regulator_disable_regmap,
310 .is_enabled = regulator_is_enabled_regmap,
311 .set_suspend_enable = rk808_set_suspend_enable,
312 .set_suspend_disable = rk808_set_suspend_disable,
313};
314
315static const struct regulator_desc rk808_reg[] = {
316 {
317 .name = "DCDC_REG1",
318 .supply_name = "vcc1",
319 .id = RK808_ID_DCDC1,
320 .ops = &rk808_buck1_2_ops,
321 .type = REGULATOR_VOLTAGE,
322 .n_voltages = 64,
323 .linear_ranges = rk808_buck_voltage_ranges,
324 .n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges),
325 .vsel_reg = RK808_BUCK1_ON_VSEL_REG,
326 .vsel_mask = RK808_BUCK_VSEL_MASK,
327 .enable_reg = RK808_DCDC_EN_REG,
328 .enable_mask = BIT(0),
329 .owner = THIS_MODULE,
330 }, {
331 .name = "DCDC_REG2",
332 .supply_name = "vcc2",
333 .id = RK808_ID_DCDC2,
334 .ops = &rk808_buck1_2_ops,
335 .type = REGULATOR_VOLTAGE,
336 .n_voltages = 64,
337 .linear_ranges = rk808_buck_voltage_ranges,
338 .n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges),
339 .vsel_reg = RK808_BUCK2_ON_VSEL_REG,
340 .vsel_mask = RK808_BUCK_VSEL_MASK,
341 .enable_reg = RK808_DCDC_EN_REG,
342 .enable_mask = BIT(1),
343 .owner = THIS_MODULE,
344 }, {
345 .name = "DCDC_REG3",
346 .supply_name = "vcc3",
347 .id = RK808_ID_DCDC3,
348 .ops = &rk808_switch_ops,
349 .type = REGULATOR_VOLTAGE,
350 .n_voltages = 1,
351 .enable_reg = RK808_DCDC_EN_REG,
352 .enable_mask = BIT(2),
353 .owner = THIS_MODULE,
354 }, {
355 .name = "DCDC_REG4",
356 .supply_name = "vcc4",
357 .id = RK808_ID_DCDC4,
358 .ops = &rk808_reg_ops,
359 .type = REGULATOR_VOLTAGE,
360 .n_voltages = 16,
361 .linear_ranges = rk808_buck4_voltage_ranges,
362 .n_linear_ranges = ARRAY_SIZE(rk808_buck4_voltage_ranges),
363 .vsel_reg = RK808_BUCK4_ON_VSEL_REG,
364 .vsel_mask = RK808_BUCK4_VSEL_MASK,
365 .enable_reg = RK808_DCDC_EN_REG,
366 .enable_mask = BIT(3),
367 .owner = THIS_MODULE,
368 }, {
369 .name = "LDO_REG1",
370 .supply_name = "vcc6",
371 .id = RK808_ID_LDO1,
372 .ops = &rk808_reg_ops,
373 .type = REGULATOR_VOLTAGE,
374 .n_voltages = 17,
375 .linear_ranges = rk808_ldo_voltage_ranges,
376 .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
377 .vsel_reg = RK808_LDO1_ON_VSEL_REG,
378 .vsel_mask = RK808_LDO_VSEL_MASK,
379 .enable_reg = RK808_LDO_EN_REG,
380 .enable_mask = BIT(0),
381 .enable_time = 400,
382 .owner = THIS_MODULE,
383 }, {
384 .name = "LDO_REG2",
385 .supply_name = "vcc6",
386 .id = RK808_ID_LDO2,
387 .ops = &rk808_reg_ops,
388 .type = REGULATOR_VOLTAGE,
389 .n_voltages = 17,
390 .linear_ranges = rk808_ldo_voltage_ranges,
391 .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
392 .vsel_reg = RK808_LDO2_ON_VSEL_REG,
393 .vsel_mask = RK808_LDO_VSEL_MASK,
394 .enable_reg = RK808_LDO_EN_REG,
395 .enable_mask = BIT(1),
396 .enable_time = 400,
397 .owner = THIS_MODULE,
398 }, {
399 .name = "LDO_REG3",
400 .supply_name = "vcc7",
401 .id = RK808_ID_LDO3,
402 .ops = &rk808_reg_ops,
403 .type = REGULATOR_VOLTAGE,
404 .n_voltages = 16,
405 .linear_ranges = rk808_ldo3_voltage_ranges,
406 .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges),
407 .vsel_reg = RK808_LDO3_ON_VSEL_REG,
408 .vsel_mask = RK808_BUCK4_VSEL_MASK,
409 .enable_reg = RK808_LDO_EN_REG,
410 .enable_mask = BIT(2),
411 .enable_time = 400,
412 .owner = THIS_MODULE,
413 }, {
414 .name = "LDO_REG4",
415 .supply_name = "vcc9",
416 .id = RK808_ID_LDO4,
417 .ops = &rk808_reg_ops,
418 .type = REGULATOR_VOLTAGE,
419 .n_voltages = 17,
420 .linear_ranges = rk808_ldo_voltage_ranges,
421 .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
422 .vsel_reg = RK808_LDO4_ON_VSEL_REG,
423 .vsel_mask = RK808_LDO_VSEL_MASK,
424 .enable_reg = RK808_LDO_EN_REG,
425 .enable_mask = BIT(3),
426 .enable_time = 400,
427 .owner = THIS_MODULE,
428 }, {
429 .name = "LDO_REG5",
430 .supply_name = "vcc9",
431 .id = RK808_ID_LDO5,
432 .ops = &rk808_reg_ops,
433 .type = REGULATOR_VOLTAGE,
434 .n_voltages = 17,
435 .linear_ranges = rk808_ldo_voltage_ranges,
436 .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
437 .vsel_reg = RK808_LDO5_ON_VSEL_REG,
438 .vsel_mask = RK808_LDO_VSEL_MASK,
439 .enable_reg = RK808_LDO_EN_REG,
440 .enable_mask = BIT(4),
441 .enable_time = 400,
442 .owner = THIS_MODULE,
443 }, {
444 .name = "LDO_REG6",
445 .supply_name = "vcc10",
446 .id = RK808_ID_LDO6,
447 .ops = &rk808_reg_ops,
448 .type = REGULATOR_VOLTAGE,
449 .n_voltages = 18,
450 .linear_ranges = rk808_ldo6_voltage_ranges,
451 .n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges),
452 .vsel_reg = RK808_LDO6_ON_VSEL_REG,
453 .vsel_mask = RK808_LDO_VSEL_MASK,
454 .enable_reg = RK808_LDO_EN_REG,
455 .enable_mask = BIT(5),
456 .enable_time = 400,
457 .owner = THIS_MODULE,
458 }, {
459 .name = "LDO_REG7",
460 .supply_name = "vcc7",
461 .id = RK808_ID_LDO7,
462 .ops = &rk808_reg_ops,
463 .type = REGULATOR_VOLTAGE,
464 .n_voltages = 18,
465 .linear_ranges = rk808_ldo6_voltage_ranges,
466 .n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges),
467 .vsel_reg = RK808_LDO7_ON_VSEL_REG,
468 .vsel_mask = RK808_LDO_VSEL_MASK,
469 .enable_reg = RK808_LDO_EN_REG,
470 .enable_mask = BIT(6),
471 .enable_time = 400,
472 .owner = THIS_MODULE,
473 }, {
474 .name = "LDO_REG8",
475 .supply_name = "vcc11",
476 .id = RK808_ID_LDO8,
477 .ops = &rk808_reg_ops,
478 .type = REGULATOR_VOLTAGE,
479 .n_voltages = 17,
480 .linear_ranges = rk808_ldo_voltage_ranges,
481 .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
482 .vsel_reg = RK808_LDO8_ON_VSEL_REG,
483 .vsel_mask = RK808_LDO_VSEL_MASK,
484 .enable_reg = RK808_LDO_EN_REG,
485 .enable_mask = BIT(7),
486 .enable_time = 400,
487 .owner = THIS_MODULE,
488 }, {
489 .name = "SWITCH_REG1",
490 .supply_name = "vcc8",
491 .id = RK808_ID_SWITCH1,
492 .ops = &rk808_switch_ops,
493 .type = REGULATOR_VOLTAGE,
494 .enable_reg = RK808_DCDC_EN_REG,
495 .enable_mask = BIT(5),
496 .owner = THIS_MODULE,
497 }, {
498 .name = "SWITCH_REG2",
499 .supply_name = "vcc12",
500 .id = RK808_ID_SWITCH2,
501 .ops = &rk808_switch_ops,
502 .type = REGULATOR_VOLTAGE,
503 .enable_reg = RK808_DCDC_EN_REG,
504 .enable_mask = BIT(6),
505 .owner = THIS_MODULE,
506 },
507};
508
509static struct of_regulator_match rk808_reg_matches[] = {
510 [RK808_ID_DCDC1] = { .name = "DCDC_REG1" },
511 [RK808_ID_DCDC2] = { .name = "DCDC_REG2" },
512 [RK808_ID_DCDC3] = { .name = "DCDC_REG3" },
513 [RK808_ID_DCDC4] = { .name = "DCDC_REG4" },
514 [RK808_ID_LDO1] = { .name = "LDO_REG1" },
515 [RK808_ID_LDO2] = { .name = "LDO_REG2" },
516 [RK808_ID_LDO3] = { .name = "LDO_REG3" },
517 [RK808_ID_LDO4] = { .name = "LDO_REG4" },
518 [RK808_ID_LDO5] = { .name = "LDO_REG5" },
519 [RK808_ID_LDO6] = { .name = "LDO_REG6" },
520 [RK808_ID_LDO7] = { .name = "LDO_REG7" },
521 [RK808_ID_LDO8] = { .name = "LDO_REG8" },
522 [RK808_ID_SWITCH1] = { .name = "SWITCH_REG1" },
523 [RK808_ID_SWITCH2] = { .name = "SWITCH_REG2" },
524};
525
526static int rk808_regulator_dt_parse_pdata(struct device *dev,
527 struct device *client_dev,
528 struct regmap *map,
529 struct rk808_regulator_data *pdata)
530{
531 struct device_node *np;
532 int tmp, ret, i;
533
534 np = of_get_child_by_name(client_dev->of_node, "regulators");
535 if (!np)
536 return -ENXIO;
537
538 ret = of_regulator_match(dev, np, rk808_reg_matches,
539 RK808_NUM_REGULATORS);
540 if (ret < 0)
541 goto dt_parse_end;
542
543 for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) {
544 pdata->dvs_gpio[i] =
545 devm_gpiod_get_index_optional(client_dev, "dvs", i,
546 GPIOD_OUT_LOW);
547 if (IS_ERR(pdata->dvs_gpio[i])) {
548 ret = PTR_ERR(pdata->dvs_gpio[i]);
549 dev_err(dev, "failed to get dvs%d gpio (%d)\n", i, ret);
550 goto dt_parse_end;
551 }
552
553 if (!pdata->dvs_gpio[i]) {
554 dev_warn(dev, "there is no dvs%d gpio\n", i);
555 continue;
556 }
557
558 tmp = i ? RK808_DVS2_POL : RK808_DVS1_POL;
559 ret = regmap_update_bits(map, RK808_IO_POL_REG, tmp,
560 gpiod_is_active_low(pdata->dvs_gpio[i]) ?
561 0 : tmp);
562 }
563
564dt_parse_end:
565 of_node_put(np);
566 return ret;
567}
568
569static int rk808_regulator_probe(struct platform_device *pdev)
570{
571 struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
572 struct i2c_client *client = rk808->i2c;
573 struct regulator_config config = {};
574 struct regulator_dev *rk808_rdev;
575 struct rk808_regulator_data *pdata;
576 int ret, i;
577
578 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
579 if (!pdata)
580 return -ENOMEM;
581
582 ret = rk808_regulator_dt_parse_pdata(&pdev->dev, &client->dev,
583 rk808->regmap, pdata);
584 if (ret < 0)
585 return ret;
586
587 platform_set_drvdata(pdev, pdata);
588
589 /* Instantiate the regulators */
590 for (i = 0; i < RK808_NUM_REGULATORS; i++) {
591 if (!rk808_reg_matches[i].init_data ||
592 !rk808_reg_matches[i].of_node)
593 continue;
594
595 config.dev = &client->dev;
596 config.driver_data = pdata;
597 config.regmap = rk808->regmap;
598 config.of_node = rk808_reg_matches[i].of_node;
599 config.init_data = rk808_reg_matches[i].init_data;
600
601 rk808_rdev = devm_regulator_register(&pdev->dev,
602 &rk808_reg[i], &config);
603 if (IS_ERR(rk808_rdev)) {
604 dev_err(&client->dev,
605 "failed to register %d regulator\n", i);
606 return PTR_ERR(rk808_rdev);
607 }
608 }
609
610 return 0;
611}
612
613static struct platform_driver rk808_regulator_driver = {
614 .probe = rk808_regulator_probe,
615 .driver = {
616 .name = "rk808-regulator",
617 .owner = THIS_MODULE,
618 },
619};
620
621module_platform_driver(rk808_regulator_driver);
622
623MODULE_DESCRIPTION("regulator driver for the rk808 series PMICs");
624MODULE_AUTHOR("Chris Zhong<zyw@rock-chips.com>");
625MODULE_AUTHOR("Zhang Qing<zhangqing@rock-chips.com>");
626MODULE_LICENSE("GPL");
627MODULE_ALIAS("platform:rk808-regulator");
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Regulator driver for Rockchip RK805/RK808/RK818
4 *
5 * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
6 *
7 * Author: Chris Zhong <zyw@rock-chips.com>
8 * Author: Zhang Qing <zhangqing@rock-chips.com>
9 *
10 * Copyright (C) 2016 PHYTEC Messtechnik GmbH
11 *
12 * Author: Wadim Egorov <w.egorov@phytec.de>
13 */
14
15#include <linux/delay.h>
16#include <linux/gpio.h>
17#include <linux/i2c.h>
18#include <linux/module.h>
19#include <linux/of_device.h>
20#include <linux/of_gpio.h>
21#include <linux/mfd/rk808.h>
22#include <linux/regulator/driver.h>
23#include <linux/regulator/of_regulator.h>
24#include <linux/gpio/consumer.h>
25
26/* Field Definitions */
27#define RK808_BUCK_VSEL_MASK 0x3f
28#define RK808_BUCK4_VSEL_MASK 0xf
29#define RK808_LDO_VSEL_MASK 0x1f
30
31#define RK809_BUCK5_VSEL_MASK 0x7
32
33#define RK817_LDO_VSEL_MASK 0x7f
34#define RK817_BOOST_VSEL_MASK 0x7
35#define RK817_BUCK_VSEL_MASK 0x7f
36
37#define RK818_BUCK_VSEL_MASK 0x3f
38#define RK818_BUCK4_VSEL_MASK 0x1f
39#define RK818_LDO_VSEL_MASK 0x1f
40#define RK818_LDO3_ON_VSEL_MASK 0xf
41#define RK818_BOOST_ON_VSEL_MASK 0xe0
42
43/* Ramp rate definitions for buck1 / buck2 only */
44#define RK808_RAMP_RATE_OFFSET 3
45#define RK808_RAMP_RATE_MASK (3 << RK808_RAMP_RATE_OFFSET)
46#define RK808_RAMP_RATE_2MV_PER_US (0 << RK808_RAMP_RATE_OFFSET)
47#define RK808_RAMP_RATE_4MV_PER_US (1 << RK808_RAMP_RATE_OFFSET)
48#define RK808_RAMP_RATE_6MV_PER_US (2 << RK808_RAMP_RATE_OFFSET)
49#define RK808_RAMP_RATE_10MV_PER_US (3 << RK808_RAMP_RATE_OFFSET)
50
51#define RK808_DVS2_POL BIT(2)
52#define RK808_DVS1_POL BIT(1)
53
54/* Offset from XXX_ON_VSEL to XXX_SLP_VSEL */
55#define RK808_SLP_REG_OFFSET 1
56
57/* Offset from XXX_ON_VSEL to XXX_DVS_VSEL */
58#define RK808_DVS_REG_OFFSET 2
59
60/* Offset from XXX_EN_REG to SLEEP_SET_OFF_XXX */
61#define RK808_SLP_SET_OFF_REG_OFFSET 2
62
63/* max steps for increase voltage of Buck1/2, equal 100mv*/
64#define MAX_STEPS_ONE_TIME 8
65
66#define ENABLE_MASK(id) (BIT(id) | BIT(4 + (id)))
67#define DISABLE_VAL(id) (BIT(4 + (id)))
68
69#define RK817_BOOST_DESC(_id, _match, _supply, _min, _max, _step, _vreg,\
70 _vmask, _ereg, _emask, _enval, _disval, _etime, m_drop) \
71 { \
72 .name = (_match), \
73 .supply_name = (_supply), \
74 .of_match = of_match_ptr(_match), \
75 .regulators_node = of_match_ptr("regulators"), \
76 .type = REGULATOR_VOLTAGE, \
77 .id = (_id), \
78 .n_voltages = (((_max) - (_min)) / (_step) + 1), \
79 .owner = THIS_MODULE, \
80 .min_uV = (_min) * 1000, \
81 .uV_step = (_step) * 1000, \
82 .vsel_reg = (_vreg), \
83 .vsel_mask = (_vmask), \
84 .enable_reg = (_ereg), \
85 .enable_mask = (_emask), \
86 .enable_val = (_enval), \
87 .disable_val = (_disval), \
88 .enable_time = (_etime), \
89 .min_dropout_uV = (m_drop) * 1000, \
90 .ops = &rk817_boost_ops, \
91 }
92
93#define RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg, \
94 _vmask, _ereg, _emask, _enval, _disval, _etime, _ops) \
95 { \
96 .name = (_match), \
97 .supply_name = (_supply), \
98 .of_match = of_match_ptr(_match), \
99 .regulators_node = of_match_ptr("regulators"), \
100 .type = REGULATOR_VOLTAGE, \
101 .id = (_id), \
102 .n_voltages = (((_max) - (_min)) / (_step) + 1), \
103 .owner = THIS_MODULE, \
104 .min_uV = (_min) * 1000, \
105 .uV_step = (_step) * 1000, \
106 .vsel_reg = (_vreg), \
107 .vsel_mask = (_vmask), \
108 .enable_reg = (_ereg), \
109 .enable_mask = (_emask), \
110 .enable_val = (_enval), \
111 .disable_val = (_disval), \
112 .enable_time = (_etime), \
113 .ops = _ops, \
114 }
115
116#define RK805_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
117 _vmask, _ereg, _emask, _etime) \
118 RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg, \
119 _vmask, _ereg, _emask, 0, 0, _etime, &rk805_reg_ops)
120
121#define RK8XX_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
122 _vmask, _ereg, _emask, _etime) \
123 RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg, \
124 _vmask, _ereg, _emask, 0, 0, _etime, &rk808_reg_ops)
125
126#define RK817_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
127 _vmask, _ereg, _emask, _disval, _etime) \
128 RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg, \
129 _vmask, _ereg, _emask, _emask, _disval, _etime, &rk817_reg_ops)
130
131#define RKXX_DESC_SWITCH_COM(_id, _match, _supply, _ereg, _emask, \
132 _enval, _disval, _ops) \
133 { \
134 .name = (_match), \
135 .supply_name = (_supply), \
136 .of_match = of_match_ptr(_match), \
137 .regulators_node = of_match_ptr("regulators"), \
138 .type = REGULATOR_VOLTAGE, \
139 .id = (_id), \
140 .enable_reg = (_ereg), \
141 .enable_mask = (_emask), \
142 .enable_val = (_enval), \
143 .disable_val = (_disval), \
144 .owner = THIS_MODULE, \
145 .ops = _ops \
146 }
147
148#define RK817_DESC_SWITCH(_id, _match, _supply, _ereg, _emask, \
149 _disval) \
150 RKXX_DESC_SWITCH_COM(_id, _match, _supply, _ereg, _emask, \
151 _emask, _disval, &rk817_switch_ops)
152
153#define RK8XX_DESC_SWITCH(_id, _match, _supply, _ereg, _emask) \
154 RKXX_DESC_SWITCH_COM(_id, _match, _supply, _ereg, _emask, \
155 0, 0, &rk808_switch_ops)
156
157struct rk808_regulator_data {
158 struct gpio_desc *dvs_gpio[2];
159};
160
161static const int rk808_buck_config_regs[] = {
162 RK808_BUCK1_CONFIG_REG,
163 RK808_BUCK2_CONFIG_REG,
164 RK808_BUCK3_CONFIG_REG,
165 RK808_BUCK4_CONFIG_REG,
166};
167
168static const struct linear_range rk808_ldo3_voltage_ranges[] = {
169 REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000),
170 REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0),
171};
172
173#define RK809_BUCK5_SEL_CNT (8)
174
175static const struct linear_range rk809_buck5_voltage_ranges[] = {
176 REGULATOR_LINEAR_RANGE(1500000, 0, 0, 0),
177 REGULATOR_LINEAR_RANGE(1800000, 1, 3, 200000),
178 REGULATOR_LINEAR_RANGE(2800000, 4, 5, 200000),
179 REGULATOR_LINEAR_RANGE(3300000, 6, 7, 300000),
180};
181
182#define RK817_BUCK1_MIN0 500000
183#define RK817_BUCK1_MAX0 1500000
184
185#define RK817_BUCK1_MIN1 1600000
186#define RK817_BUCK1_MAX1 2400000
187
188#define RK817_BUCK3_MAX1 3400000
189
190#define RK817_BUCK1_STP0 12500
191#define RK817_BUCK1_STP1 100000
192
193#define RK817_BUCK1_SEL0 ((RK817_BUCK1_MAX0 - RK817_BUCK1_MIN0) /\
194 RK817_BUCK1_STP0)
195#define RK817_BUCK1_SEL1 ((RK817_BUCK1_MAX1 - RK817_BUCK1_MIN1) /\
196 RK817_BUCK1_STP1)
197
198#define RK817_BUCK3_SEL1 ((RK817_BUCK3_MAX1 - RK817_BUCK1_MIN1) /\
199 RK817_BUCK1_STP1)
200
201#define RK817_BUCK1_SEL_CNT (RK817_BUCK1_SEL0 + RK817_BUCK1_SEL1 + 1)
202#define RK817_BUCK3_SEL_CNT (RK817_BUCK1_SEL0 + RK817_BUCK3_SEL1 + 1)
203
204static const struct linear_range rk817_buck1_voltage_ranges[] = {
205 REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN0, 0,
206 RK817_BUCK1_SEL0, RK817_BUCK1_STP0),
207 REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN1, RK817_BUCK1_SEL0 + 1,
208 RK817_BUCK1_SEL_CNT, RK817_BUCK1_STP1),
209};
210
211static const struct linear_range rk817_buck3_voltage_ranges[] = {
212 REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN0, 0,
213 RK817_BUCK1_SEL0, RK817_BUCK1_STP0),
214 REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN1, RK817_BUCK1_SEL0 + 1,
215 RK817_BUCK3_SEL_CNT, RK817_BUCK1_STP1),
216};
217
218static int rk808_buck1_2_get_voltage_sel_regmap(struct regulator_dev *rdev)
219{
220 struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
221 int id = rdev_get_id(rdev);
222 struct gpio_desc *gpio = pdata->dvs_gpio[id];
223 unsigned int val;
224 int ret;
225
226 if (!gpio || gpiod_get_value(gpio) == 0)
227 return regulator_get_voltage_sel_regmap(rdev);
228
229 ret = regmap_read(rdev->regmap,
230 rdev->desc->vsel_reg + RK808_DVS_REG_OFFSET,
231 &val);
232 if (ret != 0)
233 return ret;
234
235 val &= rdev->desc->vsel_mask;
236 val >>= ffs(rdev->desc->vsel_mask) - 1;
237
238 return val;
239}
240
241static int rk808_buck1_2_i2c_set_voltage_sel(struct regulator_dev *rdev,
242 unsigned sel)
243{
244 int ret, delta_sel;
245 unsigned int old_sel, tmp, val, mask = rdev->desc->vsel_mask;
246
247 ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val);
248 if (ret != 0)
249 return ret;
250
251 tmp = val & ~mask;
252 old_sel = val & mask;
253 old_sel >>= ffs(mask) - 1;
254 delta_sel = sel - old_sel;
255
256 /*
257 * If directly modify the register to change the voltage, we will face
258 * the risk of overshoot. Put it into a multi-step, can effectively
259 * avoid this problem, a step is 100mv here.
260 */
261 while (delta_sel > MAX_STEPS_ONE_TIME) {
262 old_sel += MAX_STEPS_ONE_TIME;
263 val = old_sel << (ffs(mask) - 1);
264 val |= tmp;
265
266 /*
267 * i2c is 400kHz (2.5us per bit) and we must transmit _at least_
268 * 3 bytes (24 bits) plus start and stop so 26 bits. So we've
269 * got more than 65 us between each voltage change and thus
270 * won't ramp faster than ~1500 uV / us.
271 */
272 ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val);
273 delta_sel = sel - old_sel;
274 }
275
276 sel <<= ffs(mask) - 1;
277 val = tmp | sel;
278 ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val);
279
280 /*
281 * When we change the voltage register directly, the ramp rate is about
282 * 100000uv/us, wait 1us to make sure the target voltage to be stable,
283 * so we needn't wait extra time after that.
284 */
285 udelay(1);
286
287 return ret;
288}
289
290static int rk808_buck1_2_set_voltage_sel(struct regulator_dev *rdev,
291 unsigned sel)
292{
293 struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
294 int id = rdev_get_id(rdev);
295 struct gpio_desc *gpio = pdata->dvs_gpio[id];
296 unsigned int reg = rdev->desc->vsel_reg;
297 unsigned old_sel;
298 int ret, gpio_level;
299
300 if (!gpio)
301 return rk808_buck1_2_i2c_set_voltage_sel(rdev, sel);
302
303 gpio_level = gpiod_get_value(gpio);
304 if (gpio_level == 0) {
305 reg += RK808_DVS_REG_OFFSET;
306 ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &old_sel);
307 } else {
308 ret = regmap_read(rdev->regmap,
309 reg + RK808_DVS_REG_OFFSET,
310 &old_sel);
311 }
312
313 if (ret != 0)
314 return ret;
315
316 sel <<= ffs(rdev->desc->vsel_mask) - 1;
317 sel |= old_sel & ~rdev->desc->vsel_mask;
318
319 ret = regmap_write(rdev->regmap, reg, sel);
320 if (ret)
321 return ret;
322
323 gpiod_set_value(gpio, !gpio_level);
324
325 return ret;
326}
327
328static int rk808_buck1_2_set_voltage_time_sel(struct regulator_dev *rdev,
329 unsigned int old_selector,
330 unsigned int new_selector)
331{
332 struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
333 int id = rdev_get_id(rdev);
334 struct gpio_desc *gpio = pdata->dvs_gpio[id];
335
336 /* if there is no dvs1/2 pin, we don't need wait extra time here. */
337 if (!gpio)
338 return 0;
339
340 return regulator_set_voltage_time_sel(rdev, old_selector, new_selector);
341}
342
343static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
344{
345 unsigned int ramp_value = RK808_RAMP_RATE_10MV_PER_US;
346 unsigned int reg = rk808_buck_config_regs[rdev_get_id(rdev)];
347
348 switch (ramp_delay) {
349 case 1 ... 2000:
350 ramp_value = RK808_RAMP_RATE_2MV_PER_US;
351 break;
352 case 2001 ... 4000:
353 ramp_value = RK808_RAMP_RATE_4MV_PER_US;
354 break;
355 case 4001 ... 6000:
356 ramp_value = RK808_RAMP_RATE_6MV_PER_US;
357 break;
358 case 6001 ... 10000:
359 break;
360 default:
361 pr_warn("%s ramp_delay: %d not supported, setting 10000\n",
362 rdev->desc->name, ramp_delay);
363 }
364
365 return regmap_update_bits(rdev->regmap, reg,
366 RK808_RAMP_RATE_MASK, ramp_value);
367}
368
369/*
370 * RK817 RK809
371 */
372static int rk817_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
373{
374 unsigned int ramp_value = RK817_RAMP_RATE_25MV_PER_US;
375 unsigned int reg = RK817_BUCK_CONFIG_REG(rdev_get_id(rdev));
376
377 switch (ramp_delay) {
378 case 0 ... 3000:
379 ramp_value = RK817_RAMP_RATE_3MV_PER_US;
380 break;
381 case 3001 ... 6300:
382 ramp_value = RK817_RAMP_RATE_6_3MV_PER_US;
383 break;
384 case 6301 ... 12500:
385 ramp_value = RK817_RAMP_RATE_12_5MV_PER_US;
386 break;
387 case 12501 ... 25000:
388 break;
389 default:
390 dev_warn(&rdev->dev,
391 "%s ramp_delay: %d not supported, setting 25000\n",
392 rdev->desc->name, ramp_delay);
393 }
394
395 return regmap_update_bits(rdev->regmap, reg,
396 RK817_RAMP_RATE_MASK, ramp_value);
397}
398
399static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
400{
401 unsigned int reg;
402 int sel = regulator_map_voltage_linear(rdev, uv, uv);
403
404 if (sel < 0)
405 return -EINVAL;
406
407 reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
408
409 return regmap_update_bits(rdev->regmap, reg,
410 rdev->desc->vsel_mask,
411 sel);
412}
413
414static int rk808_set_suspend_voltage_range(struct regulator_dev *rdev, int uv)
415{
416 unsigned int reg;
417 int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
418
419 if (sel < 0)
420 return -EINVAL;
421
422 reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
423
424 return regmap_update_bits(rdev->regmap, reg,
425 rdev->desc->vsel_mask,
426 sel);
427}
428
429static int rk805_set_suspend_enable(struct regulator_dev *rdev)
430{
431 unsigned int reg;
432
433 reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
434
435 return regmap_update_bits(rdev->regmap, reg,
436 rdev->desc->enable_mask,
437 rdev->desc->enable_mask);
438}
439
440static int rk805_set_suspend_disable(struct regulator_dev *rdev)
441{
442 unsigned int reg;
443
444 reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
445
446 return regmap_update_bits(rdev->regmap, reg,
447 rdev->desc->enable_mask,
448 0);
449}
450
451static int rk808_set_suspend_enable(struct regulator_dev *rdev)
452{
453 unsigned int reg;
454
455 reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
456
457 return regmap_update_bits(rdev->regmap, reg,
458 rdev->desc->enable_mask,
459 0);
460}
461
462static int rk808_set_suspend_disable(struct regulator_dev *rdev)
463{
464 unsigned int reg;
465
466 reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
467
468 return regmap_update_bits(rdev->regmap, reg,
469 rdev->desc->enable_mask,
470 rdev->desc->enable_mask);
471}
472
473static int rk817_set_suspend_enable_ctrl(struct regulator_dev *rdev,
474 unsigned int en)
475{
476 unsigned int reg;
477 int id = rdev_get_id(rdev);
478 unsigned int id_slp, msk, val;
479
480 if (id >= RK817_ID_DCDC1 && id <= RK817_ID_DCDC4)
481 id_slp = id;
482 else if (id >= RK817_ID_LDO1 && id <= RK817_ID_LDO8)
483 id_slp = 8 + (id - RK817_ID_LDO1);
484 else if (id >= RK817_ID_LDO9 && id <= RK809_ID_SW2)
485 id_slp = 4 + (id - RK817_ID_LDO9);
486 else
487 return -EINVAL;
488
489 reg = RK817_POWER_SLP_EN_REG(id_slp / 8);
490
491 msk = BIT(id_slp % 8);
492 if (en)
493 val = msk;
494 else
495 val = 0;
496
497 return regmap_update_bits(rdev->regmap, reg, msk, val);
498}
499
500static int rk817_set_suspend_enable(struct regulator_dev *rdev)
501{
502 return rk817_set_suspend_enable_ctrl(rdev, 1);
503}
504
505static int rk817_set_suspend_disable(struct regulator_dev *rdev)
506{
507 return rk817_set_suspend_enable_ctrl(rdev, 0);
508}
509
510static int rk8xx_set_suspend_mode(struct regulator_dev *rdev, unsigned int mode)
511{
512 unsigned int reg;
513
514 reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
515
516 switch (mode) {
517 case REGULATOR_MODE_FAST:
518 return regmap_update_bits(rdev->regmap, reg,
519 PWM_MODE_MSK, FPWM_MODE);
520 case REGULATOR_MODE_NORMAL:
521 return regmap_update_bits(rdev->regmap, reg,
522 PWM_MODE_MSK, AUTO_PWM_MODE);
523 default:
524 dev_err(&rdev->dev, "do not support this mode\n");
525 return -EINVAL;
526 }
527
528 return 0;
529}
530
531static int rk8xx_set_mode(struct regulator_dev *rdev, unsigned int mode)
532{
533 switch (mode) {
534 case REGULATOR_MODE_FAST:
535 return regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
536 PWM_MODE_MSK, FPWM_MODE);
537 case REGULATOR_MODE_NORMAL:
538 return regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
539 PWM_MODE_MSK, AUTO_PWM_MODE);
540 default:
541 dev_err(&rdev->dev, "do not support this mode\n");
542 return -EINVAL;
543 }
544
545 return 0;
546}
547
548static unsigned int rk8xx_get_mode(struct regulator_dev *rdev)
549{
550 unsigned int val;
551 int err;
552
553 err = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val);
554 if (err)
555 return err;
556
557 if (val & FPWM_MODE)
558 return REGULATOR_MODE_FAST;
559 else
560 return REGULATOR_MODE_NORMAL;
561}
562
563static int rk8xx_is_enabled_wmsk_regmap(struct regulator_dev *rdev)
564{
565 unsigned int val;
566 int ret;
567
568 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
569 if (ret != 0)
570 return ret;
571
572 /* add write mask bit */
573 val |= (rdev->desc->enable_mask & 0xf0);
574 val &= rdev->desc->enable_mask;
575
576 if (rdev->desc->enable_is_inverted) {
577 if (rdev->desc->enable_val)
578 return val != rdev->desc->enable_val;
579 return (val == 0);
580 }
581 if (rdev->desc->enable_val)
582 return val == rdev->desc->enable_val;
583 return val != 0;
584}
585
586static unsigned int rk8xx_regulator_of_map_mode(unsigned int mode)
587{
588 switch (mode) {
589 case 1:
590 return REGULATOR_MODE_FAST;
591 case 2:
592 return REGULATOR_MODE_NORMAL;
593 default:
594 return REGULATOR_MODE_INVALID;
595 }
596}
597
598static const struct regulator_ops rk805_reg_ops = {
599 .list_voltage = regulator_list_voltage_linear,
600 .map_voltage = regulator_map_voltage_linear,
601 .get_voltage_sel = regulator_get_voltage_sel_regmap,
602 .set_voltage_sel = regulator_set_voltage_sel_regmap,
603 .enable = regulator_enable_regmap,
604 .disable = regulator_disable_regmap,
605 .is_enabled = regulator_is_enabled_regmap,
606 .set_suspend_voltage = rk808_set_suspend_voltage,
607 .set_suspend_enable = rk805_set_suspend_enable,
608 .set_suspend_disable = rk805_set_suspend_disable,
609};
610
611static const struct regulator_ops rk805_switch_ops = {
612 .enable = regulator_enable_regmap,
613 .disable = regulator_disable_regmap,
614 .is_enabled = regulator_is_enabled_regmap,
615 .set_suspend_enable = rk805_set_suspend_enable,
616 .set_suspend_disable = rk805_set_suspend_disable,
617};
618
619static const struct regulator_ops rk808_buck1_2_ops = {
620 .list_voltage = regulator_list_voltage_linear,
621 .map_voltage = regulator_map_voltage_linear,
622 .get_voltage_sel = rk808_buck1_2_get_voltage_sel_regmap,
623 .set_voltage_sel = rk808_buck1_2_set_voltage_sel,
624 .set_voltage_time_sel = rk808_buck1_2_set_voltage_time_sel,
625 .enable = regulator_enable_regmap,
626 .disable = regulator_disable_regmap,
627 .is_enabled = regulator_is_enabled_regmap,
628 .set_ramp_delay = rk808_set_ramp_delay,
629 .set_suspend_voltage = rk808_set_suspend_voltage,
630 .set_suspend_enable = rk808_set_suspend_enable,
631 .set_suspend_disable = rk808_set_suspend_disable,
632};
633
634static const struct regulator_ops rk808_reg_ops = {
635 .list_voltage = regulator_list_voltage_linear,
636 .map_voltage = regulator_map_voltage_linear,
637 .get_voltage_sel = regulator_get_voltage_sel_regmap,
638 .set_voltage_sel = regulator_set_voltage_sel_regmap,
639 .enable = regulator_enable_regmap,
640 .disable = regulator_disable_regmap,
641 .is_enabled = regulator_is_enabled_regmap,
642 .set_suspend_voltage = rk808_set_suspend_voltage,
643 .set_suspend_enable = rk808_set_suspend_enable,
644 .set_suspend_disable = rk808_set_suspend_disable,
645};
646
647static const struct regulator_ops rk808_reg_ops_ranges = {
648 .list_voltage = regulator_list_voltage_linear_range,
649 .map_voltage = regulator_map_voltage_linear_range,
650 .get_voltage_sel = regulator_get_voltage_sel_regmap,
651 .set_voltage_sel = regulator_set_voltage_sel_regmap,
652 .enable = regulator_enable_regmap,
653 .disable = regulator_disable_regmap,
654 .is_enabled = regulator_is_enabled_regmap,
655 .set_suspend_voltage = rk808_set_suspend_voltage_range,
656 .set_suspend_enable = rk808_set_suspend_enable,
657 .set_suspend_disable = rk808_set_suspend_disable,
658};
659
660static const struct regulator_ops rk808_switch_ops = {
661 .enable = regulator_enable_regmap,
662 .disable = regulator_disable_regmap,
663 .is_enabled = regulator_is_enabled_regmap,
664 .set_suspend_enable = rk808_set_suspend_enable,
665 .set_suspend_disable = rk808_set_suspend_disable,
666};
667
668static const struct linear_range rk805_buck_1_2_voltage_ranges[] = {
669 REGULATOR_LINEAR_RANGE(712500, 0, 59, 12500),
670 REGULATOR_LINEAR_RANGE(1800000, 60, 62, 200000),
671 REGULATOR_LINEAR_RANGE(2300000, 63, 63, 0),
672};
673
674static const struct regulator_ops rk809_buck5_ops_range = {
675 .list_voltage = regulator_list_voltage_linear_range,
676 .map_voltage = regulator_map_voltage_linear_range,
677 .get_voltage_sel = regulator_get_voltage_sel_regmap,
678 .set_voltage_sel = regulator_set_voltage_sel_regmap,
679 .set_voltage_time_sel = regulator_set_voltage_time_sel,
680 .enable = regulator_enable_regmap,
681 .disable = regulator_disable_regmap,
682 .is_enabled = rk8xx_is_enabled_wmsk_regmap,
683 .set_suspend_voltage = rk808_set_suspend_voltage_range,
684 .set_suspend_enable = rk817_set_suspend_enable,
685 .set_suspend_disable = rk817_set_suspend_disable,
686};
687
688static const struct regulator_ops rk817_reg_ops = {
689 .list_voltage = regulator_list_voltage_linear,
690 .map_voltage = regulator_map_voltage_linear,
691 .get_voltage_sel = regulator_get_voltage_sel_regmap,
692 .set_voltage_sel = regulator_set_voltage_sel_regmap,
693 .enable = regulator_enable_regmap,
694 .disable = regulator_disable_regmap,
695 .is_enabled = rk8xx_is_enabled_wmsk_regmap,
696 .set_suspend_voltage = rk808_set_suspend_voltage,
697 .set_suspend_enable = rk817_set_suspend_enable,
698 .set_suspend_disable = rk817_set_suspend_disable,
699};
700
701static const struct regulator_ops rk817_boost_ops = {
702 .list_voltage = regulator_list_voltage_linear,
703 .map_voltage = regulator_map_voltage_linear,
704 .get_voltage_sel = regulator_get_voltage_sel_regmap,
705 .set_voltage_sel = regulator_set_voltage_sel_regmap,
706 .enable = regulator_enable_regmap,
707 .disable = regulator_disable_regmap,
708 .is_enabled = rk8xx_is_enabled_wmsk_regmap,
709 .set_suspend_enable = rk817_set_suspend_enable,
710 .set_suspend_disable = rk817_set_suspend_disable,
711};
712
713static const struct regulator_ops rk817_buck_ops_range = {
714 .list_voltage = regulator_list_voltage_linear_range,
715 .map_voltage = regulator_map_voltage_linear_range,
716 .get_voltage_sel = regulator_get_voltage_sel_regmap,
717 .set_voltage_sel = regulator_set_voltage_sel_regmap,
718 .set_voltage_time_sel = regulator_set_voltage_time_sel,
719 .enable = regulator_enable_regmap,
720 .disable = regulator_disable_regmap,
721 .is_enabled = rk8xx_is_enabled_wmsk_regmap,
722 .set_mode = rk8xx_set_mode,
723 .get_mode = rk8xx_get_mode,
724 .set_suspend_mode = rk8xx_set_suspend_mode,
725 .set_ramp_delay = rk817_set_ramp_delay,
726 .set_suspend_voltage = rk808_set_suspend_voltage_range,
727 .set_suspend_enable = rk817_set_suspend_enable,
728 .set_suspend_disable = rk817_set_suspend_disable,
729};
730
731static const struct regulator_ops rk817_switch_ops = {
732 .enable = regulator_enable_regmap,
733 .disable = regulator_disable_regmap,
734 .is_enabled = rk8xx_is_enabled_wmsk_regmap,
735 .set_suspend_enable = rk817_set_suspend_enable,
736 .set_suspend_disable = rk817_set_suspend_disable,
737};
738
739static const struct regulator_desc rk805_reg[] = {
740 {
741 .name = "DCDC_REG1",
742 .supply_name = "vcc1",
743 .of_match = of_match_ptr("DCDC_REG1"),
744 .regulators_node = of_match_ptr("regulators"),
745 .id = RK805_ID_DCDC1,
746 .ops = &rk808_reg_ops_ranges,
747 .type = REGULATOR_VOLTAGE,
748 .n_voltages = 64,
749 .linear_ranges = rk805_buck_1_2_voltage_ranges,
750 .n_linear_ranges = ARRAY_SIZE(rk805_buck_1_2_voltage_ranges),
751 .vsel_reg = RK805_BUCK1_ON_VSEL_REG,
752 .vsel_mask = RK818_BUCK_VSEL_MASK,
753 .enable_reg = RK805_DCDC_EN_REG,
754 .enable_mask = BIT(0),
755 .owner = THIS_MODULE,
756 }, {
757 .name = "DCDC_REG2",
758 .supply_name = "vcc2",
759 .of_match = of_match_ptr("DCDC_REG2"),
760 .regulators_node = of_match_ptr("regulators"),
761 .id = RK805_ID_DCDC2,
762 .ops = &rk808_reg_ops_ranges,
763 .type = REGULATOR_VOLTAGE,
764 .n_voltages = 64,
765 .linear_ranges = rk805_buck_1_2_voltage_ranges,
766 .n_linear_ranges = ARRAY_SIZE(rk805_buck_1_2_voltage_ranges),
767 .vsel_reg = RK805_BUCK2_ON_VSEL_REG,
768 .vsel_mask = RK818_BUCK_VSEL_MASK,
769 .enable_reg = RK805_DCDC_EN_REG,
770 .enable_mask = BIT(1),
771 .owner = THIS_MODULE,
772 }, {
773 .name = "DCDC_REG3",
774 .supply_name = "vcc3",
775 .of_match = of_match_ptr("DCDC_REG3"),
776 .regulators_node = of_match_ptr("regulators"),
777 .id = RK805_ID_DCDC3,
778 .ops = &rk805_switch_ops,
779 .type = REGULATOR_VOLTAGE,
780 .n_voltages = 1,
781 .enable_reg = RK805_DCDC_EN_REG,
782 .enable_mask = BIT(2),
783 .owner = THIS_MODULE,
784 },
785
786 RK805_DESC(RK805_ID_DCDC4, "DCDC_REG4", "vcc4", 800, 3400, 100,
787 RK805_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK,
788 RK805_DCDC_EN_REG, BIT(3), 0),
789
790 RK805_DESC(RK805_ID_LDO1, "LDO_REG1", "vcc5", 800, 3400, 100,
791 RK805_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG,
792 BIT(0), 400),
793 RK805_DESC(RK805_ID_LDO2, "LDO_REG2", "vcc5", 800, 3400, 100,
794 RK805_LDO2_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG,
795 BIT(1), 400),
796 RK805_DESC(RK805_ID_LDO3, "LDO_REG3", "vcc6", 800, 3400, 100,
797 RK805_LDO3_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG,
798 BIT(2), 400),
799};
800
801static const struct regulator_desc rk808_reg[] = {
802 {
803 .name = "DCDC_REG1",
804 .supply_name = "vcc1",
805 .of_match = of_match_ptr("DCDC_REG1"),
806 .regulators_node = of_match_ptr("regulators"),
807 .id = RK808_ID_DCDC1,
808 .ops = &rk808_buck1_2_ops,
809 .type = REGULATOR_VOLTAGE,
810 .min_uV = 712500,
811 .uV_step = 12500,
812 .n_voltages = 64,
813 .vsel_reg = RK808_BUCK1_ON_VSEL_REG,
814 .vsel_mask = RK808_BUCK_VSEL_MASK,
815 .enable_reg = RK808_DCDC_EN_REG,
816 .enable_mask = BIT(0),
817 .owner = THIS_MODULE,
818 }, {
819 .name = "DCDC_REG2",
820 .supply_name = "vcc2",
821 .of_match = of_match_ptr("DCDC_REG2"),
822 .regulators_node = of_match_ptr("regulators"),
823 .id = RK808_ID_DCDC2,
824 .ops = &rk808_buck1_2_ops,
825 .type = REGULATOR_VOLTAGE,
826 .min_uV = 712500,
827 .uV_step = 12500,
828 .n_voltages = 64,
829 .vsel_reg = RK808_BUCK2_ON_VSEL_REG,
830 .vsel_mask = RK808_BUCK_VSEL_MASK,
831 .enable_reg = RK808_DCDC_EN_REG,
832 .enable_mask = BIT(1),
833 .owner = THIS_MODULE,
834 }, {
835 .name = "DCDC_REG3",
836 .supply_name = "vcc3",
837 .of_match = of_match_ptr("DCDC_REG3"),
838 .regulators_node = of_match_ptr("regulators"),
839 .id = RK808_ID_DCDC3,
840 .ops = &rk808_switch_ops,
841 .type = REGULATOR_VOLTAGE,
842 .n_voltages = 1,
843 .enable_reg = RK808_DCDC_EN_REG,
844 .enable_mask = BIT(2),
845 .owner = THIS_MODULE,
846 },
847 RK8XX_DESC(RK808_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3300, 100,
848 RK808_BUCK4_ON_VSEL_REG, RK808_BUCK4_VSEL_MASK,
849 RK808_DCDC_EN_REG, BIT(3), 0),
850 RK8XX_DESC(RK808_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100,
851 RK808_LDO1_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
852 BIT(0), 400),
853 RK8XX_DESC(RK808_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100,
854 RK808_LDO2_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
855 BIT(1), 400),
856 {
857 .name = "LDO_REG3",
858 .supply_name = "vcc7",
859 .of_match = of_match_ptr("LDO_REG3"),
860 .regulators_node = of_match_ptr("regulators"),
861 .id = RK808_ID_LDO3,
862 .ops = &rk808_reg_ops_ranges,
863 .type = REGULATOR_VOLTAGE,
864 .n_voltages = 16,
865 .linear_ranges = rk808_ldo3_voltage_ranges,
866 .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges),
867 .vsel_reg = RK808_LDO3_ON_VSEL_REG,
868 .vsel_mask = RK808_BUCK4_VSEL_MASK,
869 .enable_reg = RK808_LDO_EN_REG,
870 .enable_mask = BIT(2),
871 .enable_time = 400,
872 .owner = THIS_MODULE,
873 },
874 RK8XX_DESC(RK808_ID_LDO4, "LDO_REG4", "vcc9", 1800, 3400, 100,
875 RK808_LDO4_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
876 BIT(3), 400),
877 RK8XX_DESC(RK808_ID_LDO5, "LDO_REG5", "vcc9", 1800, 3400, 100,
878 RK808_LDO5_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
879 BIT(4), 400),
880 RK8XX_DESC(RK808_ID_LDO6, "LDO_REG6", "vcc10", 800, 2500, 100,
881 RK808_LDO6_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
882 BIT(5), 400),
883 RK8XX_DESC(RK808_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100,
884 RK808_LDO7_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
885 BIT(6), 400),
886 RK8XX_DESC(RK808_ID_LDO8, "LDO_REG8", "vcc11", 1800, 3400, 100,
887 RK808_LDO8_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
888 BIT(7), 400),
889 RK8XX_DESC_SWITCH(RK808_ID_SWITCH1, "SWITCH_REG1", "vcc8",
890 RK808_DCDC_EN_REG, BIT(5)),
891 RK8XX_DESC_SWITCH(RK808_ID_SWITCH2, "SWITCH_REG2", "vcc12",
892 RK808_DCDC_EN_REG, BIT(6)),
893};
894
895static const struct regulator_desc rk809_reg[] = {
896 {
897 .name = "DCDC_REG1",
898 .supply_name = "vcc1",
899 .of_match = of_match_ptr("DCDC_REG1"),
900 .regulators_node = of_match_ptr("regulators"),
901 .id = RK817_ID_DCDC1,
902 .ops = &rk817_buck_ops_range,
903 .type = REGULATOR_VOLTAGE,
904 .n_voltages = RK817_BUCK1_SEL_CNT + 1,
905 .linear_ranges = rk817_buck1_voltage_ranges,
906 .n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
907 .vsel_reg = RK817_BUCK1_ON_VSEL_REG,
908 .vsel_mask = RK817_BUCK_VSEL_MASK,
909 .enable_reg = RK817_POWER_EN_REG(0),
910 .enable_mask = ENABLE_MASK(RK817_ID_DCDC1),
911 .enable_val = ENABLE_MASK(RK817_ID_DCDC1),
912 .disable_val = DISABLE_VAL(RK817_ID_DCDC1),
913 .of_map_mode = rk8xx_regulator_of_map_mode,
914 .owner = THIS_MODULE,
915 }, {
916 .name = "DCDC_REG2",
917 .supply_name = "vcc2",
918 .of_match = of_match_ptr("DCDC_REG2"),
919 .regulators_node = of_match_ptr("regulators"),
920 .id = RK817_ID_DCDC2,
921 .ops = &rk817_buck_ops_range,
922 .type = REGULATOR_VOLTAGE,
923 .n_voltages = RK817_BUCK1_SEL_CNT + 1,
924 .linear_ranges = rk817_buck1_voltage_ranges,
925 .n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
926 .vsel_reg = RK817_BUCK2_ON_VSEL_REG,
927 .vsel_mask = RK817_BUCK_VSEL_MASK,
928 .enable_reg = RK817_POWER_EN_REG(0),
929 .enable_mask = ENABLE_MASK(RK817_ID_DCDC2),
930 .enable_val = ENABLE_MASK(RK817_ID_DCDC2),
931 .disable_val = DISABLE_VAL(RK817_ID_DCDC2),
932 .of_map_mode = rk8xx_regulator_of_map_mode,
933 .owner = THIS_MODULE,
934 }, {
935 .name = "DCDC_REG3",
936 .supply_name = "vcc3",
937 .of_match = of_match_ptr("DCDC_REG3"),
938 .regulators_node = of_match_ptr("regulators"),
939 .id = RK817_ID_DCDC3,
940 .ops = &rk817_buck_ops_range,
941 .type = REGULATOR_VOLTAGE,
942 .n_voltages = RK817_BUCK1_SEL_CNT + 1,
943 .linear_ranges = rk817_buck1_voltage_ranges,
944 .n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
945 .vsel_reg = RK817_BUCK3_ON_VSEL_REG,
946 .vsel_mask = RK817_BUCK_VSEL_MASK,
947 .enable_reg = RK817_POWER_EN_REG(0),
948 .enable_mask = ENABLE_MASK(RK817_ID_DCDC3),
949 .enable_val = ENABLE_MASK(RK817_ID_DCDC3),
950 .disable_val = DISABLE_VAL(RK817_ID_DCDC3),
951 .of_map_mode = rk8xx_regulator_of_map_mode,
952 .owner = THIS_MODULE,
953 }, {
954 .name = "DCDC_REG4",
955 .supply_name = "vcc4",
956 .of_match = of_match_ptr("DCDC_REG4"),
957 .regulators_node = of_match_ptr("regulators"),
958 .id = RK817_ID_DCDC4,
959 .ops = &rk817_buck_ops_range,
960 .type = REGULATOR_VOLTAGE,
961 .n_voltages = RK817_BUCK3_SEL_CNT + 1,
962 .linear_ranges = rk817_buck3_voltage_ranges,
963 .n_linear_ranges = ARRAY_SIZE(rk817_buck3_voltage_ranges),
964 .vsel_reg = RK817_BUCK4_ON_VSEL_REG,
965 .vsel_mask = RK817_BUCK_VSEL_MASK,
966 .enable_reg = RK817_POWER_EN_REG(0),
967 .enable_mask = ENABLE_MASK(RK817_ID_DCDC4),
968 .enable_val = ENABLE_MASK(RK817_ID_DCDC4),
969 .disable_val = DISABLE_VAL(RK817_ID_DCDC4),
970 .of_map_mode = rk8xx_regulator_of_map_mode,
971 .owner = THIS_MODULE,
972 },
973 {
974 .name = "DCDC_REG5",
975 .supply_name = "vcc9",
976 .of_match = of_match_ptr("DCDC_REG5"),
977 .regulators_node = of_match_ptr("regulators"),
978 .id = RK809_ID_DCDC5,
979 .ops = &rk809_buck5_ops_range,
980 .type = REGULATOR_VOLTAGE,
981 .n_voltages = RK809_BUCK5_SEL_CNT,
982 .linear_ranges = rk809_buck5_voltage_ranges,
983 .n_linear_ranges = ARRAY_SIZE(rk809_buck5_voltage_ranges),
984 .vsel_reg = RK809_BUCK5_CONFIG(0),
985 .vsel_mask = RK809_BUCK5_VSEL_MASK,
986 .enable_reg = RK817_POWER_EN_REG(3),
987 .enable_mask = ENABLE_MASK(1),
988 .enable_val = ENABLE_MASK(1),
989 .disable_val = DISABLE_VAL(1),
990 .of_map_mode = rk8xx_regulator_of_map_mode,
991 .owner = THIS_MODULE,
992 },
993 RK817_DESC(RK817_ID_LDO1, "LDO_REG1", "vcc5", 600, 3400, 25,
994 RK817_LDO_ON_VSEL_REG(0), RK817_LDO_VSEL_MASK,
995 RK817_POWER_EN_REG(1), ENABLE_MASK(0),
996 DISABLE_VAL(0), 400),
997 RK817_DESC(RK817_ID_LDO2, "LDO_REG2", "vcc5", 600, 3400, 25,
998 RK817_LDO_ON_VSEL_REG(1), RK817_LDO_VSEL_MASK,
999 RK817_POWER_EN_REG(1), ENABLE_MASK(1),
1000 DISABLE_VAL(1), 400),
1001 RK817_DESC(RK817_ID_LDO3, "LDO_REG3", "vcc5", 600, 3400, 25,
1002 RK817_LDO_ON_VSEL_REG(2), RK817_LDO_VSEL_MASK,
1003 RK817_POWER_EN_REG(1), ENABLE_MASK(2),
1004 DISABLE_VAL(2), 400),
1005 RK817_DESC(RK817_ID_LDO4, "LDO_REG4", "vcc6", 600, 3400, 25,
1006 RK817_LDO_ON_VSEL_REG(3), RK817_LDO_VSEL_MASK,
1007 RK817_POWER_EN_REG(1), ENABLE_MASK(3),
1008 DISABLE_VAL(3), 400),
1009 RK817_DESC(RK817_ID_LDO5, "LDO_REG5", "vcc6", 600, 3400, 25,
1010 RK817_LDO_ON_VSEL_REG(4), RK817_LDO_VSEL_MASK,
1011 RK817_POWER_EN_REG(2), ENABLE_MASK(0),
1012 DISABLE_VAL(0), 400),
1013 RK817_DESC(RK817_ID_LDO6, "LDO_REG6", "vcc6", 600, 3400, 25,
1014 RK817_LDO_ON_VSEL_REG(5), RK817_LDO_VSEL_MASK,
1015 RK817_POWER_EN_REG(2), ENABLE_MASK(1),
1016 DISABLE_VAL(1), 400),
1017 RK817_DESC(RK817_ID_LDO7, "LDO_REG7", "vcc7", 600, 3400, 25,
1018 RK817_LDO_ON_VSEL_REG(6), RK817_LDO_VSEL_MASK,
1019 RK817_POWER_EN_REG(2), ENABLE_MASK(2),
1020 DISABLE_VAL(2), 400),
1021 RK817_DESC(RK817_ID_LDO8, "LDO_REG8", "vcc7", 600, 3400, 25,
1022 RK817_LDO_ON_VSEL_REG(7), RK817_LDO_VSEL_MASK,
1023 RK817_POWER_EN_REG(2), ENABLE_MASK(3),
1024 DISABLE_VAL(3), 400),
1025 RK817_DESC(RK817_ID_LDO9, "LDO_REG9", "vcc7", 600, 3400, 25,
1026 RK817_LDO_ON_VSEL_REG(8), RK817_LDO_VSEL_MASK,
1027 RK817_POWER_EN_REG(3), ENABLE_MASK(0),
1028 DISABLE_VAL(0), 400),
1029 RK817_DESC_SWITCH(RK809_ID_SW1, "SWITCH_REG1", "vcc9",
1030 RK817_POWER_EN_REG(3), ENABLE_MASK(2),
1031 DISABLE_VAL(2)),
1032 RK817_DESC_SWITCH(RK809_ID_SW2, "SWITCH_REG2", "vcc8",
1033 RK817_POWER_EN_REG(3), ENABLE_MASK(3),
1034 DISABLE_VAL(3)),
1035};
1036
1037static const struct regulator_desc rk817_reg[] = {
1038 {
1039 .name = "DCDC_REG1",
1040 .supply_name = "vcc1",
1041 .of_match = of_match_ptr("DCDC_REG1"),
1042 .regulators_node = of_match_ptr("regulators"),
1043 .id = RK817_ID_DCDC1,
1044 .ops = &rk817_buck_ops_range,
1045 .type = REGULATOR_VOLTAGE,
1046 .n_voltages = RK817_BUCK1_SEL_CNT + 1,
1047 .linear_ranges = rk817_buck1_voltage_ranges,
1048 .n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
1049 .vsel_reg = RK817_BUCK1_ON_VSEL_REG,
1050 .vsel_mask = RK817_BUCK_VSEL_MASK,
1051 .enable_reg = RK817_POWER_EN_REG(0),
1052 .enable_mask = ENABLE_MASK(RK817_ID_DCDC1),
1053 .enable_val = ENABLE_MASK(RK817_ID_DCDC1),
1054 .disable_val = DISABLE_VAL(RK817_ID_DCDC1),
1055 .of_map_mode = rk8xx_regulator_of_map_mode,
1056 .owner = THIS_MODULE,
1057 }, {
1058 .name = "DCDC_REG2",
1059 .supply_name = "vcc2",
1060 .of_match = of_match_ptr("DCDC_REG2"),
1061 .regulators_node = of_match_ptr("regulators"),
1062 .id = RK817_ID_DCDC2,
1063 .ops = &rk817_buck_ops_range,
1064 .type = REGULATOR_VOLTAGE,
1065 .n_voltages = RK817_BUCK1_SEL_CNT + 1,
1066 .linear_ranges = rk817_buck1_voltage_ranges,
1067 .n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
1068 .vsel_reg = RK817_BUCK2_ON_VSEL_REG,
1069 .vsel_mask = RK817_BUCK_VSEL_MASK,
1070 .enable_reg = RK817_POWER_EN_REG(0),
1071 .enable_mask = ENABLE_MASK(RK817_ID_DCDC2),
1072 .enable_val = ENABLE_MASK(RK817_ID_DCDC2),
1073 .disable_val = DISABLE_VAL(RK817_ID_DCDC2),
1074 .of_map_mode = rk8xx_regulator_of_map_mode,
1075 .owner = THIS_MODULE,
1076 }, {
1077 .name = "DCDC_REG3",
1078 .supply_name = "vcc3",
1079 .of_match = of_match_ptr("DCDC_REG3"),
1080 .regulators_node = of_match_ptr("regulators"),
1081 .id = RK817_ID_DCDC3,
1082 .ops = &rk817_buck_ops_range,
1083 .type = REGULATOR_VOLTAGE,
1084 .n_voltages = RK817_BUCK1_SEL_CNT + 1,
1085 .linear_ranges = rk817_buck1_voltage_ranges,
1086 .n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
1087 .vsel_reg = RK817_BUCK3_ON_VSEL_REG,
1088 .vsel_mask = RK817_BUCK_VSEL_MASK,
1089 .enable_reg = RK817_POWER_EN_REG(0),
1090 .enable_mask = ENABLE_MASK(RK817_ID_DCDC3),
1091 .enable_val = ENABLE_MASK(RK817_ID_DCDC3),
1092 .disable_val = DISABLE_VAL(RK817_ID_DCDC3),
1093 .of_map_mode = rk8xx_regulator_of_map_mode,
1094 .owner = THIS_MODULE,
1095 }, {
1096 .name = "DCDC_REG4",
1097 .supply_name = "vcc4",
1098 .of_match = of_match_ptr("DCDC_REG4"),
1099 .regulators_node = of_match_ptr("regulators"),
1100 .id = RK817_ID_DCDC4,
1101 .ops = &rk817_buck_ops_range,
1102 .type = REGULATOR_VOLTAGE,
1103 .n_voltages = RK817_BUCK3_SEL_CNT + 1,
1104 .linear_ranges = rk817_buck3_voltage_ranges,
1105 .n_linear_ranges = ARRAY_SIZE(rk817_buck3_voltage_ranges),
1106 .vsel_reg = RK817_BUCK4_ON_VSEL_REG,
1107 .vsel_mask = RK817_BUCK_VSEL_MASK,
1108 .enable_reg = RK817_POWER_EN_REG(0),
1109 .enable_mask = ENABLE_MASK(RK817_ID_DCDC4),
1110 .enable_val = ENABLE_MASK(RK817_ID_DCDC4),
1111 .disable_val = DISABLE_VAL(RK817_ID_DCDC4),
1112 .of_map_mode = rk8xx_regulator_of_map_mode,
1113 .owner = THIS_MODULE,
1114 },
1115 RK817_DESC(RK817_ID_LDO1, "LDO_REG1", "vcc5", 600, 3400, 25,
1116 RK817_LDO_ON_VSEL_REG(0), RK817_LDO_VSEL_MASK,
1117 RK817_POWER_EN_REG(1), ENABLE_MASK(0),
1118 DISABLE_VAL(0), 400),
1119 RK817_DESC(RK817_ID_LDO2, "LDO_REG2", "vcc5", 600, 3400, 25,
1120 RK817_LDO_ON_VSEL_REG(1), RK817_LDO_VSEL_MASK,
1121 RK817_POWER_EN_REG(1), ENABLE_MASK(1),
1122 DISABLE_VAL(1), 400),
1123 RK817_DESC(RK817_ID_LDO3, "LDO_REG3", "vcc5", 600, 3400, 25,
1124 RK817_LDO_ON_VSEL_REG(2), RK817_LDO_VSEL_MASK,
1125 RK817_POWER_EN_REG(1), ENABLE_MASK(2),
1126 DISABLE_VAL(2), 400),
1127 RK817_DESC(RK817_ID_LDO4, "LDO_REG4", "vcc6", 600, 3400, 25,
1128 RK817_LDO_ON_VSEL_REG(3), RK817_LDO_VSEL_MASK,
1129 RK817_POWER_EN_REG(1), ENABLE_MASK(3),
1130 DISABLE_VAL(3), 400),
1131 RK817_DESC(RK817_ID_LDO5, "LDO_REG5", "vcc6", 600, 3400, 25,
1132 RK817_LDO_ON_VSEL_REG(4), RK817_LDO_VSEL_MASK,
1133 RK817_POWER_EN_REG(2), ENABLE_MASK(0),
1134 DISABLE_VAL(0), 400),
1135 RK817_DESC(RK817_ID_LDO6, "LDO_REG6", "vcc6", 600, 3400, 25,
1136 RK817_LDO_ON_VSEL_REG(5), RK817_LDO_VSEL_MASK,
1137 RK817_POWER_EN_REG(2), ENABLE_MASK(1),
1138 DISABLE_VAL(1), 400),
1139 RK817_DESC(RK817_ID_LDO7, "LDO_REG7", "vcc7", 600, 3400, 25,
1140 RK817_LDO_ON_VSEL_REG(6), RK817_LDO_VSEL_MASK,
1141 RK817_POWER_EN_REG(2), ENABLE_MASK(2),
1142 DISABLE_VAL(2), 400),
1143 RK817_DESC(RK817_ID_LDO8, "LDO_REG8", "vcc7", 600, 3400, 25,
1144 RK817_LDO_ON_VSEL_REG(7), RK817_LDO_VSEL_MASK,
1145 RK817_POWER_EN_REG(2), ENABLE_MASK(3),
1146 DISABLE_VAL(3), 400),
1147 RK817_DESC(RK817_ID_LDO9, "LDO_REG9", "vcc7", 600, 3400, 25,
1148 RK817_LDO_ON_VSEL_REG(8), RK817_LDO_VSEL_MASK,
1149 RK817_POWER_EN_REG(3), ENABLE_MASK(0),
1150 DISABLE_VAL(0), 400),
1151 RK817_BOOST_DESC(RK817_ID_BOOST, "BOOST", "vcc8", 4700, 5400, 100,
1152 RK817_BOOST_OTG_CFG, RK817_BOOST_VSEL_MASK,
1153 RK817_POWER_EN_REG(3), ENABLE_MASK(1), ENABLE_MASK(1),
1154 DISABLE_VAL(1), 400, 3500 - 5400),
1155 RK817_DESC_SWITCH(RK817_ID_BOOST_OTG_SW, "OTG_SWITCH", "vcc9",
1156 RK817_POWER_EN_REG(3), ENABLE_MASK(2),
1157 DISABLE_VAL(2)),
1158};
1159
1160static const struct regulator_desc rk818_reg[] = {
1161 {
1162 .name = "DCDC_REG1",
1163 .supply_name = "vcc1",
1164 .of_match = of_match_ptr("DCDC_REG1"),
1165 .regulators_node = of_match_ptr("regulators"),
1166 .id = RK818_ID_DCDC1,
1167 .ops = &rk808_reg_ops,
1168 .type = REGULATOR_VOLTAGE,
1169 .min_uV = 712500,
1170 .uV_step = 12500,
1171 .n_voltages = 64,
1172 .vsel_reg = RK818_BUCK1_ON_VSEL_REG,
1173 .vsel_mask = RK818_BUCK_VSEL_MASK,
1174 .enable_reg = RK818_DCDC_EN_REG,
1175 .enable_mask = BIT(0),
1176 .owner = THIS_MODULE,
1177 }, {
1178 .name = "DCDC_REG2",
1179 .supply_name = "vcc2",
1180 .of_match = of_match_ptr("DCDC_REG2"),
1181 .regulators_node = of_match_ptr("regulators"),
1182 .id = RK818_ID_DCDC2,
1183 .ops = &rk808_reg_ops,
1184 .type = REGULATOR_VOLTAGE,
1185 .min_uV = 712500,
1186 .uV_step = 12500,
1187 .n_voltages = 64,
1188 .vsel_reg = RK818_BUCK2_ON_VSEL_REG,
1189 .vsel_mask = RK818_BUCK_VSEL_MASK,
1190 .enable_reg = RK818_DCDC_EN_REG,
1191 .enable_mask = BIT(1),
1192 .owner = THIS_MODULE,
1193 }, {
1194 .name = "DCDC_REG3",
1195 .supply_name = "vcc3",
1196 .of_match = of_match_ptr("DCDC_REG3"),
1197 .regulators_node = of_match_ptr("regulators"),
1198 .id = RK818_ID_DCDC3,
1199 .ops = &rk808_switch_ops,
1200 .type = REGULATOR_VOLTAGE,
1201 .n_voltages = 1,
1202 .enable_reg = RK818_DCDC_EN_REG,
1203 .enable_mask = BIT(2),
1204 .owner = THIS_MODULE,
1205 },
1206 RK8XX_DESC(RK818_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3600, 100,
1207 RK818_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK,
1208 RK818_DCDC_EN_REG, BIT(3), 0),
1209 RK8XX_DESC(RK818_ID_BOOST, "DCDC_BOOST", "boost", 4700, 5400, 100,
1210 RK818_BOOST_LDO9_ON_VSEL_REG, RK818_BOOST_ON_VSEL_MASK,
1211 RK818_DCDC_EN_REG, BIT(4), 0),
1212 RK8XX_DESC(RK818_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100,
1213 RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
1214 BIT(0), 400),
1215 RK8XX_DESC(RK818_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100,
1216 RK818_LDO2_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
1217 BIT(1), 400),
1218 {
1219 .name = "LDO_REG3",
1220 .supply_name = "vcc7",
1221 .of_match = of_match_ptr("LDO_REG3"),
1222 .regulators_node = of_match_ptr("regulators"),
1223 .id = RK818_ID_LDO3,
1224 .ops = &rk808_reg_ops_ranges,
1225 .type = REGULATOR_VOLTAGE,
1226 .n_voltages = 16,
1227 .linear_ranges = rk808_ldo3_voltage_ranges,
1228 .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges),
1229 .vsel_reg = RK818_LDO3_ON_VSEL_REG,
1230 .vsel_mask = RK818_LDO3_ON_VSEL_MASK,
1231 .enable_reg = RK818_LDO_EN_REG,
1232 .enable_mask = BIT(2),
1233 .enable_time = 400,
1234 .owner = THIS_MODULE,
1235 },
1236 RK8XX_DESC(RK818_ID_LDO4, "LDO_REG4", "vcc8", 1800, 3400, 100,
1237 RK818_LDO4_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
1238 BIT(3), 400),
1239 RK8XX_DESC(RK818_ID_LDO5, "LDO_REG5", "vcc7", 1800, 3400, 100,
1240 RK818_LDO5_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
1241 BIT(4), 400),
1242 RK8XX_DESC(RK818_ID_LDO6, "LDO_REG6", "vcc8", 800, 2500, 100,
1243 RK818_LDO6_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
1244 BIT(5), 400),
1245 RK8XX_DESC(RK818_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100,
1246 RK818_LDO7_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
1247 BIT(6), 400),
1248 RK8XX_DESC(RK818_ID_LDO8, "LDO_REG8", "vcc8", 1800, 3400, 100,
1249 RK818_LDO8_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
1250 BIT(7), 400),
1251 RK8XX_DESC(RK818_ID_LDO9, "LDO_REG9", "vcc9", 1800, 3400, 100,
1252 RK818_BOOST_LDO9_ON_VSEL_REG, RK818_LDO_VSEL_MASK,
1253 RK818_DCDC_EN_REG, BIT(5), 400),
1254 RK8XX_DESC_SWITCH(RK818_ID_SWITCH, "SWITCH_REG", "vcc9",
1255 RK818_DCDC_EN_REG, BIT(6)),
1256 RK8XX_DESC_SWITCH(RK818_ID_HDMI_SWITCH, "HDMI_SWITCH", "h_5v",
1257 RK818_H5V_EN_REG, BIT(0)),
1258 RK8XX_DESC_SWITCH(RK818_ID_OTG_SWITCH, "OTG_SWITCH", "usb",
1259 RK818_DCDC_EN_REG, BIT(7)),
1260};
1261
1262static int rk808_regulator_dt_parse_pdata(struct device *dev,
1263 struct device *client_dev,
1264 struct regmap *map,
1265 struct rk808_regulator_data *pdata)
1266{
1267 struct device_node *np;
1268 int tmp, ret = 0, i;
1269
1270 np = of_get_child_by_name(client_dev->of_node, "regulators");
1271 if (!np)
1272 return -ENXIO;
1273
1274 for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) {
1275 pdata->dvs_gpio[i] =
1276 devm_gpiod_get_index_optional(client_dev, "dvs", i,
1277 GPIOD_OUT_LOW);
1278 if (IS_ERR(pdata->dvs_gpio[i])) {
1279 ret = PTR_ERR(pdata->dvs_gpio[i]);
1280 dev_err(dev, "failed to get dvs%d gpio (%d)\n", i, ret);
1281 goto dt_parse_end;
1282 }
1283
1284 if (!pdata->dvs_gpio[i]) {
1285 dev_info(dev, "there is no dvs%d gpio\n", i);
1286 continue;
1287 }
1288
1289 tmp = i ? RK808_DVS2_POL : RK808_DVS1_POL;
1290 ret = regmap_update_bits(map, RK808_IO_POL_REG, tmp,
1291 gpiod_is_active_low(pdata->dvs_gpio[i]) ?
1292 0 : tmp);
1293 }
1294
1295dt_parse_end:
1296 of_node_put(np);
1297 return ret;
1298}
1299
1300static int rk808_regulator_probe(struct platform_device *pdev)
1301{
1302 struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
1303 struct i2c_client *client = rk808->i2c;
1304 struct regulator_config config = {};
1305 struct regulator_dev *rk808_rdev;
1306 struct rk808_regulator_data *pdata;
1307 const struct regulator_desc *regulators;
1308 int ret, i, nregulators;
1309
1310 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
1311 if (!pdata)
1312 return -ENOMEM;
1313
1314 ret = rk808_regulator_dt_parse_pdata(&pdev->dev, &client->dev,
1315 rk808->regmap, pdata);
1316 if (ret < 0)
1317 return ret;
1318
1319 platform_set_drvdata(pdev, pdata);
1320
1321 switch (rk808->variant) {
1322 case RK805_ID:
1323 regulators = rk805_reg;
1324 nregulators = RK805_NUM_REGULATORS;
1325 break;
1326 case RK808_ID:
1327 regulators = rk808_reg;
1328 nregulators = RK808_NUM_REGULATORS;
1329 break;
1330 case RK809_ID:
1331 regulators = rk809_reg;
1332 nregulators = RK809_NUM_REGULATORS;
1333 break;
1334 case RK817_ID:
1335 regulators = rk817_reg;
1336 nregulators = RK817_NUM_REGULATORS;
1337 break;
1338 case RK818_ID:
1339 regulators = rk818_reg;
1340 nregulators = RK818_NUM_REGULATORS;
1341 break;
1342 default:
1343 dev_err(&client->dev, "unsupported RK8XX ID %lu\n",
1344 rk808->variant);
1345 return -EINVAL;
1346 }
1347
1348 config.dev = &client->dev;
1349 config.driver_data = pdata;
1350 config.regmap = rk808->regmap;
1351
1352 /* Instantiate the regulators */
1353 for (i = 0; i < nregulators; i++) {
1354 rk808_rdev = devm_regulator_register(&pdev->dev,
1355 ®ulators[i], &config);
1356 if (IS_ERR(rk808_rdev)) {
1357 dev_err(&client->dev,
1358 "failed to register %d regulator\n", i);
1359 return PTR_ERR(rk808_rdev);
1360 }
1361 }
1362
1363 return 0;
1364}
1365
1366static struct platform_driver rk808_regulator_driver = {
1367 .probe = rk808_regulator_probe,
1368 .driver = {
1369 .name = "rk808-regulator"
1370 },
1371};
1372
1373module_platform_driver(rk808_regulator_driver);
1374
1375MODULE_DESCRIPTION("regulator driver for the RK805/RK808/RK818 series PMICs");
1376MODULE_AUTHOR("Tony xie <tony.xie@rock-chips.com>");
1377MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
1378MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
1379MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
1380MODULE_LICENSE("GPL");
1381MODULE_ALIAS("platform:rk808-regulator");