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regulator: core: Add regulator_is_equal() helper
[mirror_ubuntu-focal-kernel.git] / drivers / regulator / qcom-rpmh-regulator.c
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46fc033e
DC		 1// SPDX-License-Identifier: GPL-2.0
2// Copyright (c) 2018, The Linux Foundation. All rights reserved.
3
4#define pr_fmt(fmt) "%s: " fmt, __func__
5
6#include <linux/err.h>
7#include <linux/kernel.h>
8#include <linux/module.h>
9#include <linux/of.h>
10#include <linux/of_device.h>
11#include <linux/platform_device.h>
12#include <linux/slab.h>
13#include <linux/string.h>
14#include <linux/regulator/driver.h>
15#include <linux/regulator/machine.h>
16#include <linux/regulator/of_regulator.h>
17
18#include <soc/qcom/cmd-db.h>
19#include <soc/qcom/rpmh.h>
20
21#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
22
23/**
24 * enum rpmh_regulator_type - supported RPMh accelerator types
25 * %VRM: RPMh VRM accelerator which supports voting on enable, voltage,
26 * and mode of LDO, SMPS, and BOB type PMIC regulators.
27 * %XOB: RPMh XOB accelerator which supports voting on the enable state
28 * of PMIC regulators.
29 */
30enum rpmh_regulator_type {
31 VRM,
32 XOB,
33};
34
35#define RPMH_REGULATOR_REG_VRM_VOLTAGE 0x0
36#define RPMH_REGULATOR_REG_ENABLE 0x4
37#define RPMH_REGULATOR_REG_VRM_MODE 0x8
38
39#define PMIC4_LDO_MODE_RETENTION 4
40#define PMIC4_LDO_MODE_LPM 5
41#define PMIC4_LDO_MODE_HPM 7
42
43#define PMIC4_SMPS_MODE_RETENTION 4
44#define PMIC4_SMPS_MODE_PFM 5
45#define PMIC4_SMPS_MODE_AUTO 6
46#define PMIC4_SMPS_MODE_PWM 7
47
48#define PMIC4_BOB_MODE_PASS 0
49#define PMIC4_BOB_MODE_PFM 1
50#define PMIC4_BOB_MODE_AUTO 2
51#define PMIC4_BOB_MODE_PWM 3
52
610f29e5
VK		 53#define PMIC5_LDO_MODE_RETENTION 3
54#define PMIC5_LDO_MODE_LPM 4
55#define PMIC5_LDO_MODE_HPM 7
56
57#define PMIC5_SMPS_MODE_RETENTION 3
58#define PMIC5_SMPS_MODE_PFM 4
59#define PMIC5_SMPS_MODE_AUTO 6
60#define PMIC5_SMPS_MODE_PWM 7
61
62#define PMIC5_BOB_MODE_PASS 2
63#define PMIC5_BOB_MODE_PFM 4
64#define PMIC5_BOB_MODE_AUTO 6
65#define PMIC5_BOB_MODE_PWM 7
66
46fc033e
DC		 67/**
68 * struct rpmh_vreg_hw_data - RPMh regulator hardware configurations
69 * @regulator_type: RPMh accelerator type used to manage this
70 * regulator
71 * @ops: Pointer to regulator ops callback structure
72 * @voltage_range: The single range of voltages supported by this
73 * PMIC regulator type
74 * @n_voltages: The number of unique voltage set points defined
75 * by voltage_range
76 * @hpm_min_load_uA: Minimum load current in microamps that requires
77 * high power mode (HPM) operation. This is used
78 * for LDO hardware type regulators only.
79 * @pmic_mode_map: Array indexed by regulator framework mode
80 * containing PMIC hardware modes. Must be large
81 * enough to index all framework modes supported
82 * by this regulator hardware type.
83 * @of_map_mode: Maps an RPMH_REGULATOR_MODE_* mode value defined
84 * in device tree to a regulator framework mode
85 */
86struct rpmh_vreg_hw_data {
87 enum rpmh_regulator_type regulator_type;
88 const struct regulator_ops *ops;
89 const struct regulator_linear_range voltage_range;
90 int n_voltages;
91 int hpm_min_load_uA;
92 const int *pmic_mode_map;
93 unsigned int (*of_map_mode)(unsigned int mode);
94};
95
96/**
97 * struct rpmh_vreg - individual RPMh regulator data structure encapsulating a
98 * single regulator device
99 * @dev: Device pointer for the top-level PMIC RPMh
100 * regulator parent device. This is used as a
101 * handle in RPMh write requests.
102 * @addr: Base address of the regulator resource within
103 * an RPMh accelerator
104 * @rdesc: Regulator descriptor
105 * @hw_data: PMIC regulator configuration data for this RPMh
106 * regulator
107 * @always_wait_for_ack: Boolean flag indicating if a request must always
108 * wait for an ACK from RPMh before continuing even
109 * if it corresponds to a strictly lower power
110 * state (e.g. enabled --> disabled).
111 * @enabled: Flag indicating if the regulator is enabled or
112 * not
113 * @bypassed: Boolean indicating if the regulator is in
114 * bypass (pass-through) mode or not. This is
115 * only used by BOB rpmh-regulator resources.
116 * @voltage_selector: Selector used for get_voltage_sel() and
117 * set_voltage_sel() callbacks
118 * @mode: RPMh VRM regulator current framework mode
119 */
120struct rpmh_vreg {
121 struct device *dev;
122 u32 addr;
123 struct regulator_desc rdesc;
124 const struct rpmh_vreg_hw_data *hw_data;
125 bool always_wait_for_ack;
126
127 int enabled;
128 bool bypassed;
129 int voltage_selector;
130 unsigned int mode;
131};
132
133/**
134 * struct rpmh_vreg_init_data - initialization data for an RPMh regulator
135 * @name: Name for the regulator which also corresponds
136 * to the device tree subnode name of the regulator
137 * @resource_name: RPMh regulator resource name format string.
138 * This must include exactly one field: '%s' which
139 * is filled at run-time with the PMIC ID provided
140 * by device tree property qcom,pmic-id. Example:
141 * "ldo%s1" for RPMh resource "ldoa1".
142 * @supply_name: Parent supply regulator name
143 * @hw_data: Configuration data for this PMIC regulator type
144 */
145struct rpmh_vreg_init_data {
146 const char *name;
147 const char *resource_name;
148 const char *supply_name;
149 const struct rpmh_vreg_hw_data *hw_data;
150};
151
152/**
153 * rpmh_regulator_send_request() - send the request to RPMh
154 * @vreg: Pointer to the RPMh regulator
155 * @cmd: Pointer to the RPMh command to send
156 * @wait_for_ack: Boolean indicating if execution must wait until the
157 * request has been acknowledged as complete
158 *
159 * Return: 0 on success, errno on failure
160 */
161static int rpmh_regulator_send_request(struct rpmh_vreg *vreg,
162 struct tcs_cmd *cmd, bool wait_for_ack)
163{
164 int ret;
165
166 if (wait_for_ack || vreg->always_wait_for_ack)
167 ret = rpmh_write(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd, 1);
168 else
169 ret = rpmh_write_async(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd,
170 1);
171
172 return ret;
173}
174
175static int _rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev,
176 unsigned int selector, bool wait_for_ack)
177{
178 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
179 struct tcs_cmd cmd = {
180 .addr = vreg->addr + RPMH_REGULATOR_REG_VRM_VOLTAGE,
181 };
182 int ret;
183
184 /* VRM voltage control register is set with voltage in millivolts. */
185 cmd.data = DIV_ROUND_UP(regulator_list_voltage_linear_range(rdev,
186 selector), 1000);
187
188 ret = rpmh_regulator_send_request(vreg, &cmd, wait_for_ack);
189 if (!ret)
190 vreg->voltage_selector = selector;
191
192 return ret;
193}
194
195static int rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev,
196 unsigned int selector)
197{
198 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
199
200 if (vreg->enabled == -EINVAL) {
201 /*
202 * Cache the voltage and send it later when the regulator is
203 * enabled or disabled.
204 */
205 vreg->voltage_selector = selector;
206 return 0;
207 }
208
209 return _rpmh_regulator_vrm_set_voltage_sel(rdev, selector,
210 selector > vreg->voltage_selector);
211}
212
213static int rpmh_regulator_vrm_get_voltage_sel(struct regulator_dev *rdev)
214{
215 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
216
217 return vreg->voltage_selector;
218}
219
220static int rpmh_regulator_is_enabled(struct regulator_dev *rdev)
221{
222 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
223
224 return vreg->enabled;
225}
226
227static int rpmh_regulator_set_enable_state(struct regulator_dev *rdev,
228 bool enable)
229{
230 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
231 struct tcs_cmd cmd = {
232 .addr = vreg->addr + RPMH_REGULATOR_REG_ENABLE,
233 .data = enable,
234 };
235 int ret;
236
237 if (vreg->enabled == -EINVAL &&
238 vreg->voltage_selector != -ENOTRECOVERABLE) {
239 ret = _rpmh_regulator_vrm_set_voltage_sel(rdev,
240 vreg->voltage_selector, true);
241 if (ret < 0)
242 return ret;
243 }
244
245 ret = rpmh_regulator_send_request(vreg, &cmd, enable);
246 if (!ret)
247 vreg->enabled = enable;
248
249 return ret;
250}
251
252static int rpmh_regulator_enable(struct regulator_dev *rdev)
253{
254 return rpmh_regulator_set_enable_state(rdev, true);
255}
256
257static int rpmh_regulator_disable(struct regulator_dev *rdev)
258{
259 return rpmh_regulator_set_enable_state(rdev, false);
260}
261
262static int rpmh_regulator_vrm_set_mode_bypass(struct rpmh_vreg *vreg,
263 unsigned int mode, bool bypassed)
264{
265 struct tcs_cmd cmd = {
266 .addr = vreg->addr + RPMH_REGULATOR_REG_VRM_MODE,
267 };
268 int pmic_mode;
269
270 if (mode > REGULATOR_MODE_STANDBY)
271 return -EINVAL;
272
273 pmic_mode = vreg->hw_data->pmic_mode_map[mode];
274 if (pmic_mode < 0)
275 return pmic_mode;
276
277 if (bypassed)
278 cmd.data = PMIC4_BOB_MODE_PASS;
279 else
280 cmd.data = pmic_mode;
281
282 return rpmh_regulator_send_request(vreg, &cmd, true);
283}
284
285static int rpmh_regulator_vrm_set_mode(struct regulator_dev *rdev,
286 unsigned int mode)
287{
288 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
289 int ret;
290
291 if (mode == vreg->mode)
292 return 0;
293
294 ret = rpmh_regulator_vrm_set_mode_bypass(vreg, mode, vreg->bypassed);
295 if (!ret)
296 vreg->mode = mode;
297
298 return ret;
299}
300
301static unsigned int rpmh_regulator_vrm_get_mode(struct regulator_dev *rdev)
302{
303 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
304
305 return vreg->mode;
306}
307
308/**
309 * rpmh_regulator_vrm_set_load() - set the regulator mode based upon the load
310 * current requested
311 * @rdev: Regulator device pointer for the rpmh-regulator
312 * @load_uA: Aggregated load current in microamps
313 *
314 * This function is used in the regulator_ops for VRM type RPMh regulator
315 * devices.
316 *
317 * Return: 0 on success, errno on failure
318 */
319static int rpmh_regulator_vrm_set_load(struct regulator_dev *rdev, int load_uA)
320{
321 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
322 unsigned int mode;
323
324 if (load_uA >= vreg->hw_data->hpm_min_load_uA)
325 mode = REGULATOR_MODE_NORMAL;
326 else
327 mode = REGULATOR_MODE_IDLE;
328
329 return rpmh_regulator_vrm_set_mode(rdev, mode);
330}
331
332static int rpmh_regulator_vrm_set_bypass(struct regulator_dev *rdev,
333 bool enable)
334{
335 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
336 int ret;
337
338 if (vreg->bypassed == enable)
339 return 0;
340
341 ret = rpmh_regulator_vrm_set_mode_bypass(vreg, vreg->mode, enable);
342 if (!ret)
343 vreg->bypassed = enable;
344
345 return ret;
346}
347
348static int rpmh_regulator_vrm_get_bypass(struct regulator_dev *rdev,
349 bool *enable)
350{
351 struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
352
353 *enable = vreg->bypassed;
354
355 return 0;
356}
357
358static const struct regulator_ops rpmh_regulator_vrm_ops = {
359 .enable = rpmh_regulator_enable,
360 .disable = rpmh_regulator_disable,
361 .is_enabled = rpmh_regulator_is_enabled,
362 .set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel,
363 .get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel,
364 .list_voltage = regulator_list_voltage_linear_range,
365 .set_mode = rpmh_regulator_vrm_set_mode,
366 .get_mode = rpmh_regulator_vrm_get_mode,
367};
368
369static const struct regulator_ops rpmh_regulator_vrm_drms_ops = {
370 .enable = rpmh_regulator_enable,
371 .disable = rpmh_regulator_disable,
372 .is_enabled = rpmh_regulator_is_enabled,
373 .set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel,
374 .get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel,
375 .list_voltage = regulator_list_voltage_linear_range,
376 .set_mode = rpmh_regulator_vrm_set_mode,
377 .get_mode = rpmh_regulator_vrm_get_mode,
378 .set_load = rpmh_regulator_vrm_set_load,
379};
380
381static const struct regulator_ops rpmh_regulator_vrm_bypass_ops = {
382 .enable = rpmh_regulator_enable,
383 .disable = rpmh_regulator_disable,
384 .is_enabled = rpmh_regulator_is_enabled,
385 .set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel,
386 .get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel,
387 .list_voltage = regulator_list_voltage_linear_range,
388 .set_mode = rpmh_regulator_vrm_set_mode,
389 .get_mode = rpmh_regulator_vrm_get_mode,
390 .set_bypass = rpmh_regulator_vrm_set_bypass,
391 .get_bypass = rpmh_regulator_vrm_get_bypass,
392};
393
394static const struct regulator_ops rpmh_regulator_xob_ops = {
395 .enable = rpmh_regulator_enable,
396 .disable = rpmh_regulator_disable,
397 .is_enabled = rpmh_regulator_is_enabled,
398};
399
400/**
401 * rpmh_regulator_init_vreg() - initialize all attributes of an rpmh-regulator
402 * vreg: Pointer to the individual rpmh-regulator resource
403 * dev: Pointer to the top level rpmh-regulator PMIC device
404 * node: Pointer to the individual rpmh-regulator resource
405 * device node
406 * pmic_id: String used to identify the top level rpmh-regulator
407 * PMIC device on the board
408 * pmic_rpmh_data: Pointer to a null-terminated array of rpmh-regulator
409 * resources defined for the top level PMIC device
410 *
411 * Return: 0 on success, errno on failure
412 */
413static int rpmh_regulator_init_vreg(struct rpmh_vreg *vreg, struct device *dev,
414 struct device_node *node, const char *pmic_id,
415 const struct rpmh_vreg_init_data *pmic_rpmh_data)
416{
417 struct regulator_config reg_config = {};
418 char rpmh_resource_name[20] = "";
419 const struct rpmh_vreg_init_data *rpmh_data;
420 struct regulator_init_data *init_data;
421 struct regulator_dev *rdev;
422 int ret;
423
424 vreg->dev = dev;
425
426 for (rpmh_data = pmic_rpmh_data; rpmh_data->name; rpmh_data++)
c32569e3 427 if (of_node_name_eq(node, rpmh_data->name))
46fc033e
DC		 428 break;
429
430 if (!rpmh_data->name) {
0c9721a5 431 dev_err(dev, "Unknown regulator %pOFn\n", node);
46fc033e
DC		 432 return -EINVAL;
433 }
434
435 scnprintf(rpmh_resource_name, sizeof(rpmh_resource_name),
436 rpmh_data->resource_name, pmic_id);
437
438 vreg->addr = cmd_db_read_addr(rpmh_resource_name);
439 if (!vreg->addr) {
0c9721a5
RH		 440 dev_err(dev, "%pOFn: could not find RPMh address for resource %s\n",
441 node, rpmh_resource_name);
46fc033e
DC		 442 return -ENODEV;
443 }
444
445 vreg->rdesc.name = rpmh_data->name;
446 vreg->rdesc.supply_name = rpmh_data->supply_name;
447 vreg->hw_data = rpmh_data->hw_data;
448
449 vreg->enabled = -EINVAL;
450 vreg->voltage_selector = -ENOTRECOVERABLE;
451 vreg->mode = REGULATOR_MODE_INVALID;
452
453 if (rpmh_data->hw_data->n_voltages) {
454 vreg->rdesc.linear_ranges = &rpmh_data->hw_data->voltage_range;
455 vreg->rdesc.n_linear_ranges = 1;
456 vreg->rdesc.n_voltages = rpmh_data->hw_data->n_voltages;
457 }
458
459 vreg->always_wait_for_ack = of_property_read_bool(node,
460 "qcom,always-wait-for-ack");
461
462 vreg->rdesc.owner = THIS_MODULE;
463 vreg->rdesc.type = REGULATOR_VOLTAGE;
464 vreg->rdesc.ops = vreg->hw_data->ops;
465 vreg->rdesc.of_map_mode = vreg->hw_data->of_map_mode;
466
467 init_data = of_get_regulator_init_data(dev, node, &vreg->rdesc);
468 if (!init_data)
469 return -ENOMEM;
470
471 if (rpmh_data->hw_data->regulator_type == XOB &&
472 init_data->constraints.min_uV &&
473 init_data->constraints.min_uV == init_data->constraints.max_uV) {
474 vreg->rdesc.fixed_uV = init_data->constraints.min_uV;
475 vreg->rdesc.n_voltages = 1;
476 }
477
478 reg_config.dev = dev;
479 reg_config.init_data = init_data;
480 reg_config.of_node = node;
481 reg_config.driver_data = vreg;
482
483 rdev = devm_regulator_register(dev, &vreg->rdesc, &reg_config);
484 if (IS_ERR(rdev)) {
485 ret = PTR_ERR(rdev);
0c9721a5
RH		 486 dev_err(dev, "%pOFn: devm_regulator_register() failed, ret=%d\n",
487 node, ret);
46fc033e
DC		 488 return ret;
489 }
490
0c9721a5
RH		 491 dev_dbg(dev, "%pOFn regulator registered for RPMh resource %s @ 0x%05X\n",
492 node, rpmh_resource_name, vreg->addr);
46fc033e
DC		 493
494 return 0;
495}
496
497static const int pmic_mode_map_pmic4_ldo[REGULATOR_MODE_STANDBY + 1] = {
498 [REGULATOR_MODE_INVALID] = -EINVAL,
499 [REGULATOR_MODE_STANDBY] = PMIC4_LDO_MODE_RETENTION,
500 [REGULATOR_MODE_IDLE] = PMIC4_LDO_MODE_LPM,
501 [REGULATOR_MODE_NORMAL] = PMIC4_LDO_MODE_HPM,
502 [REGULATOR_MODE_FAST] = -EINVAL,
503};
504
610f29e5
VK		 505static const int pmic_mode_map_pmic5_ldo[REGULATOR_MODE_STANDBY + 1] = {
506 [REGULATOR_MODE_INVALID] = -EINVAL,
507 [REGULATOR_MODE_STANDBY] = PMIC5_LDO_MODE_RETENTION,
508 [REGULATOR_MODE_IDLE] = PMIC5_LDO_MODE_LPM,
509 [REGULATOR_MODE_NORMAL] = PMIC5_LDO_MODE_HPM,
510 [REGULATOR_MODE_FAST] = -EINVAL,
511};
512
46fc033e
DC		 513static unsigned int rpmh_regulator_pmic4_ldo_of_map_mode(unsigned int rpmh_mode)
514{
515 unsigned int mode;
516
517 switch (rpmh_mode) {
518 case RPMH_REGULATOR_MODE_HPM:
519 mode = REGULATOR_MODE_NORMAL;
520 break;
521 case RPMH_REGULATOR_MODE_LPM:
522 mode = REGULATOR_MODE_IDLE;
523 break;
524 case RPMH_REGULATOR_MODE_RET:
525 mode = REGULATOR_MODE_STANDBY;
526 break;
527 default:
528 mode = REGULATOR_MODE_INVALID;
beb5a17f 529 break;
46fc033e
DC		 530 }
531
532 return mode;
533}
534
535static const int pmic_mode_map_pmic4_smps[REGULATOR_MODE_STANDBY + 1] = {
536 [REGULATOR_MODE_INVALID] = -EINVAL,
537 [REGULATOR_MODE_STANDBY] = PMIC4_SMPS_MODE_RETENTION,
538 [REGULATOR_MODE_IDLE] = PMIC4_SMPS_MODE_PFM,
539 [REGULATOR_MODE_NORMAL] = PMIC4_SMPS_MODE_AUTO,
540 [REGULATOR_MODE_FAST] = PMIC4_SMPS_MODE_PWM,
541};
542
610f29e5
VK		 543static const int pmic_mode_map_pmic5_smps[REGULATOR_MODE_STANDBY + 1] = {
544 [REGULATOR_MODE_INVALID] = -EINVAL,
545 [REGULATOR_MODE_STANDBY] = PMIC5_SMPS_MODE_RETENTION,
546 [REGULATOR_MODE_IDLE] = PMIC5_SMPS_MODE_PFM,
547 [REGULATOR_MODE_NORMAL] = PMIC5_SMPS_MODE_AUTO,
548 [REGULATOR_MODE_FAST] = PMIC5_SMPS_MODE_PWM,
549};
550
46fc033e
DC		 551static unsigned int
552rpmh_regulator_pmic4_smps_of_map_mode(unsigned int rpmh_mode)
553{
554 unsigned int mode;
555
556 switch (rpmh_mode) {
557 case RPMH_REGULATOR_MODE_HPM:
558 mode = REGULATOR_MODE_FAST;
559 break;
560 case RPMH_REGULATOR_MODE_AUTO:
561 mode = REGULATOR_MODE_NORMAL;
562 break;
563 case RPMH_REGULATOR_MODE_LPM:
564 mode = REGULATOR_MODE_IDLE;
565 break;
566 case RPMH_REGULATOR_MODE_RET:
567 mode = REGULATOR_MODE_STANDBY;
568 break;
569 default:
570 mode = REGULATOR_MODE_INVALID;
beb5a17f 571 break;
46fc033e
DC		 572 }
573
574 return mode;
575}
576
577static const int pmic_mode_map_pmic4_bob[REGULATOR_MODE_STANDBY + 1] = {
578 [REGULATOR_MODE_INVALID] = -EINVAL,
579 [REGULATOR_MODE_STANDBY] = -EINVAL,
580 [REGULATOR_MODE_IDLE] = PMIC4_BOB_MODE_PFM,
581 [REGULATOR_MODE_NORMAL] = PMIC4_BOB_MODE_AUTO,
582 [REGULATOR_MODE_FAST] = PMIC4_BOB_MODE_PWM,
583};
584
610f29e5
VK		 585static const int pmic_mode_map_pmic5_bob[REGULATOR_MODE_STANDBY + 1] = {
586 [REGULATOR_MODE_INVALID] = -EINVAL,
587 [REGULATOR_MODE_STANDBY] = -EINVAL,
588 [REGULATOR_MODE_IDLE] = PMIC5_BOB_MODE_PFM,
589 [REGULATOR_MODE_NORMAL] = PMIC5_BOB_MODE_AUTO,
590 [REGULATOR_MODE_FAST] = PMIC5_BOB_MODE_PWM,
591};
592
46fc033e
DC		 593static unsigned int rpmh_regulator_pmic4_bob_of_map_mode(unsigned int rpmh_mode)
594{
595 unsigned int mode;
596
597 switch (rpmh_mode) {
598 case RPMH_REGULATOR_MODE_HPM:
599 mode = REGULATOR_MODE_FAST;
600 break;
601 case RPMH_REGULATOR_MODE_AUTO:
602 mode = REGULATOR_MODE_NORMAL;
603 break;
604 case RPMH_REGULATOR_MODE_LPM:
605 mode = REGULATOR_MODE_IDLE;
606 break;
607 default:
608 mode = REGULATOR_MODE_INVALID;
beb5a17f 609 break;
46fc033e
DC		 610 }
611
612 return mode;
613}
614
615static const struct rpmh_vreg_hw_data pmic4_pldo = {
616 .regulator_type = VRM,
617 .ops = &rpmh_regulator_vrm_drms_ops,
618 .voltage_range = REGULATOR_LINEAR_RANGE(1664000, 0, 255, 8000),
619 .n_voltages = 256,
620 .hpm_min_load_uA = 10000,
621 .pmic_mode_map = pmic_mode_map_pmic4_ldo,
622 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
623};
624
625static const struct rpmh_vreg_hw_data pmic4_pldo_lv = {
626 .regulator_type = VRM,
627 .ops = &rpmh_regulator_vrm_drms_ops,
628 .voltage_range = REGULATOR_LINEAR_RANGE(1256000, 0, 127, 8000),
629 .n_voltages = 128,
630 .hpm_min_load_uA = 10000,
631 .pmic_mode_map = pmic_mode_map_pmic4_ldo,
632 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
633};
634
635static const struct rpmh_vreg_hw_data pmic4_nldo = {
636 .regulator_type = VRM,
637 .ops = &rpmh_regulator_vrm_drms_ops,
638 .voltage_range = REGULATOR_LINEAR_RANGE(312000, 0, 127, 8000),
639 .n_voltages = 128,
640 .hpm_min_load_uA = 30000,
641 .pmic_mode_map = pmic_mode_map_pmic4_ldo,
642 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
643};
644
645static const struct rpmh_vreg_hw_data pmic4_hfsmps3 = {
646 .regulator_type = VRM,
647 .ops = &rpmh_regulator_vrm_ops,
648 .voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000),
649 .n_voltages = 216,
650 .pmic_mode_map = pmic_mode_map_pmic4_smps,
651 .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
652};
653
654static const struct rpmh_vreg_hw_data pmic4_ftsmps426 = {
655 .regulator_type = VRM,
656 .ops = &rpmh_regulator_vrm_ops,
657 .voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 258, 4000),
658 .n_voltages = 259,
659 .pmic_mode_map = pmic_mode_map_pmic4_smps,
660 .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
661};
662
663static const struct rpmh_vreg_hw_data pmic4_bob = {
664 .regulator_type = VRM,
665 .ops = &rpmh_regulator_vrm_bypass_ops,
666 .voltage_range = REGULATOR_LINEAR_RANGE(1824000, 0, 83, 32000),
667 .n_voltages = 84,
668 .pmic_mode_map = pmic_mode_map_pmic4_bob,
669 .of_map_mode = rpmh_regulator_pmic4_bob_of_map_mode,
670};
671
672static const struct rpmh_vreg_hw_data pmic4_lvs = {
673 .regulator_type = XOB,
674 .ops = &rpmh_regulator_xob_ops,
675 /* LVS hardware does not support voltage or mode configuration. */
676};
677
06369bcc
VK		 678static const struct rpmh_vreg_hw_data pmic5_pldo = {
679 .regulator_type = VRM,
680 .ops = &rpmh_regulator_vrm_drms_ops,
681 .voltage_range = REGULATOR_LINEAR_RANGE(1504000, 0, 255, 8000),
682 .n_voltages = 256,
683 .hpm_min_load_uA = 10000,
610f29e5 684 .pmic_mode_map = pmic_mode_map_pmic5_ldo,
06369bcc
VK		 685 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
686};
687
688static const struct rpmh_vreg_hw_data pmic5_pldo_lv = {
689 .regulator_type = VRM,
690 .ops = &rpmh_regulator_vrm_drms_ops,
691 .voltage_range = REGULATOR_LINEAR_RANGE(1504000, 0, 62, 8000),
692 .n_voltages = 63,
693 .hpm_min_load_uA = 10000,
610f29e5 694 .pmic_mode_map = pmic_mode_map_pmic5_ldo,
06369bcc
VK		 695 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
696};
697
698static const struct rpmh_vreg_hw_data pmic5_nldo = {
699 .regulator_type = VRM,
700 .ops = &rpmh_regulator_vrm_drms_ops,
701 .voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 123, 8000),
702 .n_voltages = 124,
703 .hpm_min_load_uA = 30000,
610f29e5 704 .pmic_mode_map = pmic_mode_map_pmic5_ldo,
06369bcc
VK		 705 .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
706};
707
708static const struct rpmh_vreg_hw_data pmic5_hfsmps510 = {
709 .regulator_type = VRM,
710 .ops = &rpmh_regulator_vrm_ops,
711 .voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000),
712 .n_voltages = 216,
610f29e5 713 .pmic_mode_map = pmic_mode_map_pmic5_smps,
06369bcc
VK		 714 .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
715};
716
717static const struct rpmh_vreg_hw_data pmic5_ftsmps510 = {
718 .regulator_type = VRM,
719 .ops = &rpmh_regulator_vrm_ops,
720 .voltage_range = REGULATOR_LINEAR_RANGE(300000, 0, 263, 4000),
721 .n_voltages = 264,
610f29e5 722 .pmic_mode_map = pmic_mode_map_pmic5_smps,
06369bcc
VK		 723 .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
724};
725
726static const struct rpmh_vreg_hw_data pmic5_hfsmps515 = {
727 .regulator_type = VRM,
728 .ops = &rpmh_regulator_vrm_ops,
729 .voltage_range = REGULATOR_LINEAR_RANGE(2800000, 0, 4, 1600),
730 .n_voltages = 5,
610f29e5 731 .pmic_mode_map = pmic_mode_map_pmic5_smps,
06369bcc
VK		 732 .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
733};
734
735static const struct rpmh_vreg_hw_data pmic5_bob = {
736 .regulator_type = VRM,
737 .ops = &rpmh_regulator_vrm_bypass_ops,
77fd66c9
KG		 738 .voltage_range = REGULATOR_LINEAR_RANGE(3000000, 0, 31, 32000),
739 .n_voltages = 32,
610f29e5 740 .pmic_mode_map = pmic_mode_map_pmic5_bob,
06369bcc
VK		 741 .of_map_mode = rpmh_regulator_pmic4_bob_of_map_mode,
742};
743
46fc033e
DC		 744#define RPMH_VREG(_name, _resource_name, _hw_data, _supply_name) \
745{ \
746 .name = _name, \
747 .resource_name = _resource_name, \
748 .hw_data = _hw_data, \
749 .supply_name = _supply_name, \
750}
751
752static const struct rpmh_vreg_init_data pm8998_vreg_data[] = {
753 RPMH_VREG("smps1", "smp%s1", &pmic4_ftsmps426, "vdd-s1"),
754 RPMH_VREG("smps2", "smp%s2", &pmic4_ftsmps426, "vdd-s2"),
755 RPMH_VREG("smps3", "smp%s3", &pmic4_hfsmps3, "vdd-s3"),
756 RPMH_VREG("smps4", "smp%s4", &pmic4_hfsmps3, "vdd-s4"),
757 RPMH_VREG("smps5", "smp%s5", &pmic4_hfsmps3, "vdd-s5"),
758 RPMH_VREG("smps6", "smp%s6", &pmic4_ftsmps426, "vdd-s6"),
759 RPMH_VREG("smps7", "smp%s7", &pmic4_ftsmps426, "vdd-s7"),
760 RPMH_VREG("smps8", "smp%s8", &pmic4_ftsmps426, "vdd-s8"),
761 RPMH_VREG("smps9", "smp%s9", &pmic4_ftsmps426, "vdd-s9"),
762 RPMH_VREG("smps10", "smp%s10", &pmic4_ftsmps426, "vdd-s10"),
763 RPMH_VREG("smps11", "smp%s11", &pmic4_ftsmps426, "vdd-s11"),
764 RPMH_VREG("smps12", "smp%s12", &pmic4_ftsmps426, "vdd-s12"),
765 RPMH_VREG("smps13", "smp%s13", &pmic4_ftsmps426, "vdd-s13"),
766 RPMH_VREG("ldo1", "ldo%s1", &pmic4_nldo, "vdd-l1-l27"),
767 RPMH_VREG("ldo2", "ldo%s2", &pmic4_nldo, "vdd-l2-l8-l17"),
768 RPMH_VREG("ldo3", "ldo%s3", &pmic4_nldo, "vdd-l3-l11"),
769 RPMH_VREG("ldo4", "ldo%s4", &pmic4_nldo, "vdd-l4-l5"),
770 RPMH_VREG("ldo5", "ldo%s5", &pmic4_nldo, "vdd-l4-l5"),
771 RPMH_VREG("ldo6", "ldo%s6", &pmic4_pldo, "vdd-l6"),
772 RPMH_VREG("ldo7", "ldo%s7", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"),
773 RPMH_VREG("ldo8", "ldo%s8", &pmic4_nldo, "vdd-l2-l8-l17"),
774 RPMH_VREG("ldo9", "ldo%s9", &pmic4_pldo, "vdd-l9"),
775 RPMH_VREG("ldo10", "ldo%s10", &pmic4_pldo, "vdd-l10-l23-l25"),
776 RPMH_VREG("ldo11", "ldo%s11", &pmic4_nldo, "vdd-l3-l11"),
777 RPMH_VREG("ldo12", "ldo%s12", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"),
778 RPMH_VREG("ldo13", "ldo%s13", &pmic4_pldo, "vdd-l13-l19-l21"),
779 RPMH_VREG("ldo14", "ldo%s14", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"),
780 RPMH_VREG("ldo15", "ldo%s15", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"),
781 RPMH_VREG("ldo16", "ldo%s16", &pmic4_pldo, "vdd-l16-l28"),
782 RPMH_VREG("ldo17", "ldo%s17", &pmic4_nldo, "vdd-l2-l8-l17"),
783 RPMH_VREG("ldo18", "ldo%s18", &pmic4_pldo, "vdd-l18-l22"),
784 RPMH_VREG("ldo19", "ldo%s19", &pmic4_pldo, "vdd-l13-l19-l21"),
785 RPMH_VREG("ldo20", "ldo%s20", &pmic4_pldo, "vdd-l20-l24"),
786 RPMH_VREG("ldo21", "ldo%s21", &pmic4_pldo, "vdd-l13-l19-l21"),
787 RPMH_VREG("ldo22", "ldo%s22", &pmic4_pldo, "vdd-l18-l22"),
788 RPMH_VREG("ldo23", "ldo%s23", &pmic4_pldo, "vdd-l10-l23-l25"),
789 RPMH_VREG("ldo24", "ldo%s24", &pmic4_pldo, "vdd-l20-l24"),
790 RPMH_VREG("ldo25", "ldo%s25", &pmic4_pldo, "vdd-l10-l23-l25"),
791 RPMH_VREG("ldo26", "ldo%s26", &pmic4_nldo, "vdd-l26"),
792 RPMH_VREG("ldo27", "ldo%s27", &pmic4_nldo, "vdd-l1-l27"),
793 RPMH_VREG("ldo28", "ldo%s28", &pmic4_pldo, "vdd-l16-l28"),
794 RPMH_VREG("lvs1", "vs%s1", &pmic4_lvs, "vin-lvs-1-2"),
795 RPMH_VREG("lvs2", "vs%s2", &pmic4_lvs, "vin-lvs-1-2"),
796 {},
797};
798
799static const struct rpmh_vreg_init_data pmi8998_vreg_data[] = {
800 RPMH_VREG("bob", "bob%s1", &pmic4_bob, "vdd-bob"),
801 {},
802};
803
804static const struct rpmh_vreg_init_data pm8005_vreg_data[] = {
805 RPMH_VREG("smps1", "smp%s1", &pmic4_ftsmps426, "vdd-s1"),
806 RPMH_VREG("smps2", "smp%s2", &pmic4_ftsmps426, "vdd-s2"),
807 RPMH_VREG("smps3", "smp%s3", &pmic4_ftsmps426, "vdd-s3"),
808 RPMH_VREG("smps4", "smp%s4", &pmic4_ftsmps426, "vdd-s4"),
809 {},
810};
811
06369bcc
VK		 812static const struct rpmh_vreg_init_data pm8150_vreg_data[] = {
813 RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
814 RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"),
815 RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"),
816 RPMH_VREG("smps4", "smp%s4", &pmic5_hfsmps510, "vdd-s4"),
817 RPMH_VREG("smps5", "smp%s5", &pmic5_hfsmps510, "vdd-s5"),
818 RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"),
819 RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps510, "vdd-s7"),
820 RPMH_VREG("smps8", "smp%s8", &pmic5_ftsmps510, "vdd-s8"),
821 RPMH_VREG("smps9", "smp%s9", &pmic5_ftsmps510, "vdd-s9"),
822 RPMH_VREG("smps10", "smp%s10", &pmic5_ftsmps510, "vdd-s10"),
823 RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1-l8-l11"),
824 RPMH_VREG("ldo2", "ldo%s2", &pmic5_pldo, "vdd-l2-l10"),
825 RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
826 RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
827 RPMH_VREG("ldo5", "ldo%s5", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
828 RPMH_VREG("ldo6", "ldo%s6", &pmic5_nldo, "vdd-l6-l9"),
829 RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l7-l12-l14-l15"),
830 RPMH_VREG("ldo8", "ldo%s8", &pmic5_nldo, "vdd-l1-l8-l11"),
831 RPMH_VREG("ldo9", "ldo%s9", &pmic5_nldo, "vdd-l6-l9"),
832 RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l2-l10"),
833 RPMH_VREG("ldo11", "ldo%s11", &pmic5_nldo, "vdd-l1-l8-l11"),
834 RPMH_VREG("ldo12", "ldo%s12", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"),
835 RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l13-l6-l17"),
836 RPMH_VREG("ldo14", "ldo%s14", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"),
837 RPMH_VREG("ldo15", "ldo%s15", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"),
838 RPMH_VREG("ldo16", "ldo%s16", &pmic5_pldo, "vdd-l13-l6-l17"),
839 RPMH_VREG("ldo17", "ldo%s17", &pmic5_pldo, "vdd-l13-l6-l17"),
840 RPMH_VREG("ldo18", "ldo%s18", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
841 {},
842};
843
844static const struct rpmh_vreg_init_data pm8150l_vreg_data[] = {
845 RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
846 RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"),
847 RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"),
848 RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps510, "vdd-s4"),
849 RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps510, "vdd-s5"),
850 RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"),
851 RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps510, "vdd-s7"),
852 RPMH_VREG("smps8", "smp%s8", &pmic5_hfsmps510, "vdd-s8"),
853 RPMH_VREG("ldo1", "ldo%s1", &pmic5_pldo_lv, "vdd-l1-l8"),
854 RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2-l3"),
855 RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l2-l3"),
856 RPMH_VREG("ldo4", "ldo%s4", &pmic5_pldo, "vdd-l4-l5-l6"),
857 RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l4-l5-l6"),
858 RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l4-l5-l6"),
859 RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l7-l11"),
860 RPMH_VREG("ldo8", "ldo%s8", &pmic5_pldo_lv, "vdd-l1-l8-l11"),
861 RPMH_VREG("ldo9", "ldo%s9", &pmic5_pldo, "vdd-l9-l10"),
862 RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l9-l10"),
863 RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo, "vdd-l7-l11"),
864 RPMH_VREG("bob", "bob%s1", &pmic5_bob, "vdd-bob"),
865 {},
866};
867
868static const struct rpmh_vreg_init_data pm8009_vreg_data[] = {
869 RPMH_VREG("smps1", "smp%s1", &pmic5_hfsmps510, "vdd-s1"),
870 RPMH_VREG("smps2", "smp%s2", &pmic5_hfsmps515, "vdd-s2"),
871 RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1"),
872 RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2"),
873 RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3"),
874 RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l4"),
875 RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l5-l6"),
876 RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l5-l6"),
877 RPMH_VREG("ldo7", "ldo%s6", &pmic5_pldo_lv, "vdd-l7"),
878 {},
879};
880
46fc033e
DC		 881static int rpmh_regulator_probe(struct platform_device *pdev)
882{
883 struct device *dev = &pdev->dev;
884 const struct rpmh_vreg_init_data *vreg_data;
885 struct device_node *node;
886 struct rpmh_vreg *vreg;
887 const char *pmic_id;
888 int ret;
889
890 vreg_data = of_device_get_match_data(dev);
891 if (!vreg_data)
892 return -ENODEV;
893
894 ret = of_property_read_string(dev->of_node, "qcom,pmic-id", &pmic_id);
895 if (ret < 0) {
896 dev_err(dev, "qcom,pmic-id missing in DT node\n");
897 return ret;
898 }
899
900 for_each_available_child_of_node(dev->of_node, node) {
901 vreg = devm_kzalloc(dev, sizeof(*vreg), GFP_KERNEL);
902 if (!vreg) {
903 of_node_put(node);
904 return -ENOMEM;
905 }
906
907 ret = rpmh_regulator_init_vreg(vreg, dev, node, pmic_id,
908 vreg_data);
909 if (ret < 0) {
910 of_node_put(node);
911 return ret;
912 }
913 }
914
915 return 0;
916}
917
918static const struct of_device_id rpmh_regulator_match_table[] = {
46fc033e
DC		 919 {
920 .compatible = "qcom,pm8005-rpmh-regulators",
921 .data = pm8005_vreg_data,
922 },
7172fb7f
VK		 923 {
924 .compatible = "qcom,pm8009-rpmh-regulators",
925 .data = pm8009_vreg_data,
926 },
06369bcc
VK		 927 {
928 .compatible = "qcom,pm8150-rpmh-regulators",
929 .data = pm8150_vreg_data,
930 },
931 {
932 .compatible = "qcom,pm8150l-rpmh-regulators",
933 .data = pm8150l_vreg_data,
934 },
935 {
7172fb7f
VK		 936 .compatible = "qcom,pm8998-rpmh-regulators",
937 .data = pm8998_vreg_data,
938 },
939 {
940 .compatible = "qcom,pmi8998-rpmh-regulators",
941 .data = pmi8998_vreg_data,
06369bcc 942 },
46fc033e
DC		 943 {}
944};
945MODULE_DEVICE_TABLE(of, rpmh_regulator_match_table);
946
947static struct platform_driver rpmh_regulator_driver = {
948 .driver = {
949 .name = "qcom-rpmh-regulator",
950 .of_match_table = of_match_ptr(rpmh_regulator_match_table),
951 },
952 .probe = rpmh_regulator_probe,
953};
954module_platform_driver(rpmh_regulator_driver);
955
956MODULE_DESCRIPTION("Qualcomm RPMh regulator driver");
957MODULE_LICENSE("GPL v2");
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