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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * tps6507x-regulator.c
4 *
5 * Regulator driver for TPS65073 PMIC
6 *
7 * Copyright (C) 2009 Texas Instrument Incorporated - https://www.ti.com/
8 */
9
10#include <linux/kernel.h>
11#include <linux/module.h>
12#include <linux/init.h>
13#include <linux/err.h>
14#include <linux/platform_device.h>
15#include <linux/regulator/driver.h>
16#include <linux/regulator/machine.h>
17#include <linux/regulator/tps6507x.h>
18#include <linux/of.h>
19#include <linux/slab.h>
20#include <linux/mfd/tps6507x.h>
21#include <linux/regulator/of_regulator.h>
22
23/* DCDC's */
24#define TPS6507X_DCDC_1 0
25#define TPS6507X_DCDC_2 1
26#define TPS6507X_DCDC_3 2
27/* LDOs */
28#define TPS6507X_LDO_1 3
29#define TPS6507X_LDO_2 4
30
31#define TPS6507X_MAX_REG_ID TPS6507X_LDO_2
32
33/* Number of step-down converters available */
34#define TPS6507X_NUM_DCDC 3
35/* Number of LDO voltage regulators available */
36#define TPS6507X_NUM_LDO 2
37/* Number of total regulators available */
38#define TPS6507X_NUM_REGULATOR (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO)
39
40/* Supported voltage values for regulators (in microVolts) */
41static const unsigned int VDCDCx_VSEL_table[] = {
42 725000, 750000, 775000, 800000,
43 825000, 850000, 875000, 900000,
44 925000, 950000, 975000, 1000000,
45 1025000, 1050000, 1075000, 1100000,
46 1125000, 1150000, 1175000, 1200000,
47 1225000, 1250000, 1275000, 1300000,
48 1325000, 1350000, 1375000, 1400000,
49 1425000, 1450000, 1475000, 1500000,
50 1550000, 1600000, 1650000, 1700000,
51 1750000, 1800000, 1850000, 1900000,
52 1950000, 2000000, 2050000, 2100000,
53 2150000, 2200000, 2250000, 2300000,
54 2350000, 2400000, 2450000, 2500000,
55 2550000, 2600000, 2650000, 2700000,
56 2750000, 2800000, 2850000, 2900000,
57 3000000, 3100000, 3200000, 3300000,
58};
59
60static const unsigned int LDO1_VSEL_table[] = {
61 1000000, 1100000, 1200000, 1250000,
62 1300000, 1350000, 1400000, 1500000,
63 1600000, 1800000, 2500000, 2750000,
64 2800000, 3000000, 3100000, 3300000,
65};
66
67/* The voltage mapping table for LDO2 is the same as VDCDCx */
68#define LDO2_VSEL_table VDCDCx_VSEL_table
69
70struct tps_info {
71 const char *name;
72 u8 table_len;
73 const unsigned int *table;
74
75 /* Does DCDC high or the low register defines output voltage? */
76 bool defdcdc_default;
77};
78
79static struct tps_info tps6507x_pmic_regs[] = {
80 {
81 .name = "VDCDC1",
82 .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
83 .table = VDCDCx_VSEL_table,
84 },
85 {
86 .name = "VDCDC2",
87 .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
88 .table = VDCDCx_VSEL_table,
89 },
90 {
91 .name = "VDCDC3",
92 .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
93 .table = VDCDCx_VSEL_table,
94 },
95 {
96 .name = "LDO1",
97 .table_len = ARRAY_SIZE(LDO1_VSEL_table),
98 .table = LDO1_VSEL_table,
99 },
100 {
101 .name = "LDO2",
102 .table_len = ARRAY_SIZE(LDO2_VSEL_table),
103 .table = LDO2_VSEL_table,
104 },
105};
106
107struct tps6507x_pmic {
108 struct regulator_desc desc[TPS6507X_NUM_REGULATOR];
109 struct tps6507x_dev *mfd;
110 struct tps_info *info[TPS6507X_NUM_REGULATOR];
111 struct mutex io_lock;
112};
113static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg)
114{
115 u8 val;
116 int err;
117
118 err = tps->mfd->read_dev(tps->mfd, reg, 1, &val);
119
120 if (err)
121 return err;
122
123 return val;
124}
125
126static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
127{
128 return tps->mfd->write_dev(tps->mfd, reg, 1, &val);
129}
130
131static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
132{
133 int err, data;
134
135 mutex_lock(&tps->io_lock);
136
137 data = tps6507x_pmic_read(tps, reg);
138 if (data < 0) {
139 dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
140 err = data;
141 goto out;
142 }
143
144 data |= mask;
145 err = tps6507x_pmic_write(tps, reg, data);
146 if (err)
147 dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
148
149out:
150 mutex_unlock(&tps->io_lock);
151 return err;
152}
153
154static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
155{
156 int err, data;
157
158 mutex_lock(&tps->io_lock);
159
160 data = tps6507x_pmic_read(tps, reg);
161 if (data < 0) {
162 dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
163 err = data;
164 goto out;
165 }
166
167 data &= ~mask;
168 err = tps6507x_pmic_write(tps, reg, data);
169 if (err)
170 dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
171
172out:
173 mutex_unlock(&tps->io_lock);
174 return err;
175}
176
177static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg)
178{
179 int data;
180
181 mutex_lock(&tps->io_lock);
182
183 data = tps6507x_pmic_read(tps, reg);
184 if (data < 0)
185 dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
186
187 mutex_unlock(&tps->io_lock);
188 return data;
189}
190
191static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
192{
193 int err;
194
195 mutex_lock(&tps->io_lock);
196
197 err = tps6507x_pmic_write(tps, reg, val);
198 if (err < 0)
199 dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
200
201 mutex_unlock(&tps->io_lock);
202 return err;
203}
204
205static int tps6507x_pmic_is_enabled(struct regulator_dev *dev)
206{
207 struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
208 int data, rid = rdev_get_id(dev);
209 u8 shift;
210
211 if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
212 return -EINVAL;
213
214 shift = TPS6507X_MAX_REG_ID - rid;
215 data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1);
216
217 if (data < 0)
218 return data;
219 else
220 return (data & 1<<shift) ? 1 : 0;
221}
222
223static int tps6507x_pmic_enable(struct regulator_dev *dev)
224{
225 struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
226 int rid = rdev_get_id(dev);
227 u8 shift;
228
229 if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
230 return -EINVAL;
231
232 shift = TPS6507X_MAX_REG_ID - rid;
233 return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
234}
235
236static int tps6507x_pmic_disable(struct regulator_dev *dev)
237{
238 struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
239 int rid = rdev_get_id(dev);
240 u8 shift;
241
242 if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
243 return -EINVAL;
244
245 shift = TPS6507X_MAX_REG_ID - rid;
246 return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1,
247 1 << shift);
248}
249
250static int tps6507x_pmic_get_voltage_sel(struct regulator_dev *dev)
251{
252 struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
253 int data, rid = rdev_get_id(dev);
254 u8 reg, mask;
255
256 switch (rid) {
257 case TPS6507X_DCDC_1:
258 reg = TPS6507X_REG_DEFDCDC1;
259 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
260 break;
261 case TPS6507X_DCDC_2:
262 if (tps->info[rid]->defdcdc_default)
263 reg = TPS6507X_REG_DEFDCDC2_HIGH;
264 else
265 reg = TPS6507X_REG_DEFDCDC2_LOW;
266 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
267 break;
268 case TPS6507X_DCDC_3:
269 if (tps->info[rid]->defdcdc_default)
270 reg = TPS6507X_REG_DEFDCDC3_HIGH;
271 else
272 reg = TPS6507X_REG_DEFDCDC3_LOW;
273 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
274 break;
275 case TPS6507X_LDO_1:
276 reg = TPS6507X_REG_LDO_CTRL1;
277 mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
278 break;
279 case TPS6507X_LDO_2:
280 reg = TPS6507X_REG_DEFLDO2;
281 mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
282 break;
283 default:
284 return -EINVAL;
285 }
286
287 data = tps6507x_pmic_reg_read(tps, reg);
288 if (data < 0)
289 return data;
290
291 data &= mask;
292 return data;
293}
294
295static int tps6507x_pmic_set_voltage_sel(struct regulator_dev *dev,
296 unsigned selector)
297{
298 struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
299 int data, rid = rdev_get_id(dev);
300 u8 reg, mask;
301
302 switch (rid) {
303 case TPS6507X_DCDC_1:
304 reg = TPS6507X_REG_DEFDCDC1;
305 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
306 break;
307 case TPS6507X_DCDC_2:
308 if (tps->info[rid]->defdcdc_default)
309 reg = TPS6507X_REG_DEFDCDC2_HIGH;
310 else
311 reg = TPS6507X_REG_DEFDCDC2_LOW;
312 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
313 break;
314 case TPS6507X_DCDC_3:
315 if (tps->info[rid]->defdcdc_default)
316 reg = TPS6507X_REG_DEFDCDC3_HIGH;
317 else
318 reg = TPS6507X_REG_DEFDCDC3_LOW;
319 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
320 break;
321 case TPS6507X_LDO_1:
322 reg = TPS6507X_REG_LDO_CTRL1;
323 mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
324 break;
325 case TPS6507X_LDO_2:
326 reg = TPS6507X_REG_DEFLDO2;
327 mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
328 break;
329 default:
330 return -EINVAL;
331 }
332
333 data = tps6507x_pmic_reg_read(tps, reg);
334 if (data < 0)
335 return data;
336
337 data &= ~mask;
338 data |= selector;
339
340 return tps6507x_pmic_reg_write(tps, reg, data);
341}
342
343static const struct regulator_ops tps6507x_pmic_ops = {
344 .is_enabled = tps6507x_pmic_is_enabled,
345 .enable = tps6507x_pmic_enable,
346 .disable = tps6507x_pmic_disable,
347 .get_voltage_sel = tps6507x_pmic_get_voltage_sel,
348 .set_voltage_sel = tps6507x_pmic_set_voltage_sel,
349 .list_voltage = regulator_list_voltage_table,
350 .map_voltage = regulator_map_voltage_ascend,
351};
352
353static int tps6507x_pmic_of_parse_cb(struct device_node *np,
354 const struct regulator_desc *desc,
355 struct regulator_config *config)
356{
357 struct tps6507x_pmic *tps = config->driver_data;
358 struct tps_info *info = tps->info[desc->id];
359 u32 prop;
360 int ret;
361
362 ret = of_property_read_u32(np, "ti,defdcdc_default", &prop);
363 if (!ret)
364 info->defdcdc_default = prop;
365
366 return 0;
367}
368
369static int tps6507x_pmic_probe(struct platform_device *pdev)
370{
371 struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
372 struct tps_info *info = &tps6507x_pmic_regs[0];
373 struct regulator_config config = { };
374 struct regulator_init_data *init_data = NULL;
375 struct regulator_dev *rdev;
376 struct tps6507x_pmic *tps;
377 struct tps6507x_board *tps_board;
378 int i;
379
380 /**
381 * tps_board points to pmic related constants
382 * coming from the board-evm file.
383 */
384
385 tps_board = dev_get_platdata(tps6507x_dev->dev);
386 if (tps_board)
387 init_data = tps_board->tps6507x_pmic_init_data;
388
389 tps = devm_kzalloc(&pdev->dev, sizeof(*tps), GFP_KERNEL);
390 if (!tps)
391 return -ENOMEM;
392
393 mutex_init(&tps->io_lock);
394
395 /* common for all regulators */
396 tps->mfd = tps6507x_dev;
397
398 for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++) {
399 /* Register the regulators */
400 tps->info[i] = info;
401 if (init_data && init_data[i].driver_data) {
402 struct tps6507x_reg_platform_data *data =
403 init_data[i].driver_data;
404 info->defdcdc_default = data->defdcdc_default;
405 }
406
407 tps->desc[i].name = info->name;
408 tps->desc[i].of_match = of_match_ptr(info->name);
409 tps->desc[i].regulators_node = of_match_ptr("regulators");
410 tps->desc[i].of_parse_cb = tps6507x_pmic_of_parse_cb;
411 tps->desc[i].id = i;
412 tps->desc[i].n_voltages = info->table_len;
413 tps->desc[i].volt_table = info->table;
414 tps->desc[i].ops = &tps6507x_pmic_ops;
415 tps->desc[i].type = REGULATOR_VOLTAGE;
416 tps->desc[i].owner = THIS_MODULE;
417
418 config.dev = tps6507x_dev->dev;
419 config.init_data = init_data;
420 config.driver_data = tps;
421
422 rdev = devm_regulator_register(&pdev->dev, &tps->desc[i],
423 &config);
424 if (IS_ERR(rdev)) {
425 dev_err(tps6507x_dev->dev,
426 "failed to register %s regulator\n",
427 pdev->name);
428 return PTR_ERR(rdev);
429 }
430 }
431
432 tps6507x_dev->pmic = tps;
433 platform_set_drvdata(pdev, tps6507x_dev);
434
435 return 0;
436}
437
438static struct platform_driver tps6507x_pmic_driver = {
439 .driver = {
440 .name = "tps6507x-pmic",
441 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
442 },
443 .probe = tps6507x_pmic_probe,
444};
445
446static int __init tps6507x_pmic_init(void)
447{
448 return platform_driver_register(&tps6507x_pmic_driver);
449}
450subsys_initcall(tps6507x_pmic_init);
451
452static void __exit tps6507x_pmic_cleanup(void)
453{
454 platform_driver_unregister(&tps6507x_pmic_driver);
455}
456module_exit(tps6507x_pmic_cleanup);
457
458MODULE_AUTHOR("Texas Instruments");
459MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
460MODULE_LICENSE("GPL v2");
461MODULE_ALIAS("platform:tps6507x-pmic");
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * tps6507x-regulator.c
4 *
5 * Regulator driver for TPS65073 PMIC
6 *
7 * Copyright (C) 2009 Texas Instrument Incorporated - https://www.ti.com/
8 */
9
10#include <linux/kernel.h>
11#include <linux/module.h>
12#include <linux/init.h>
13#include <linux/err.h>
14#include <linux/platform_device.h>
15#include <linux/regulator/driver.h>
16#include <linux/regulator/machine.h>
17#include <linux/regulator/tps6507x.h>
18#include <linux/of.h>
19#include <linux/slab.h>
20#include <linux/mfd/tps6507x.h>
21#include <linux/regulator/of_regulator.h>
22
23/* DCDC's */
24#define TPS6507X_DCDC_1 0
25#define TPS6507X_DCDC_2 1
26#define TPS6507X_DCDC_3 2
27/* LDOs */
28#define TPS6507X_LDO_1 3
29#define TPS6507X_LDO_2 4
30
31#define TPS6507X_MAX_REG_ID TPS6507X_LDO_2
32
33/* Number of step-down converters available */
34#define TPS6507X_NUM_DCDC 3
35/* Number of LDO voltage regulators available */
36#define TPS6507X_NUM_LDO 2
37/* Number of total regulators available */
38#define TPS6507X_NUM_REGULATOR (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO)
39
40/* Supported voltage values for regulators (in microVolts) */
41static const unsigned int VDCDCx_VSEL_table[] = {
42 725000, 750000, 775000, 800000,
43 825000, 850000, 875000, 900000,
44 925000, 950000, 975000, 1000000,
45 1025000, 1050000, 1075000, 1100000,
46 1125000, 1150000, 1175000, 1200000,
47 1225000, 1250000, 1275000, 1300000,
48 1325000, 1350000, 1375000, 1400000,
49 1425000, 1450000, 1475000, 1500000,
50 1550000, 1600000, 1650000, 1700000,
51 1750000, 1800000, 1850000, 1900000,
52 1950000, 2000000, 2050000, 2100000,
53 2150000, 2200000, 2250000, 2300000,
54 2350000, 2400000, 2450000, 2500000,
55 2550000, 2600000, 2650000, 2700000,
56 2750000, 2800000, 2850000, 2900000,
57 3000000, 3100000, 3200000, 3300000,
58};
59
60static const unsigned int LDO1_VSEL_table[] = {
61 1000000, 1100000, 1200000, 1250000,
62 1300000, 1350000, 1400000, 1500000,
63 1600000, 1800000, 2500000, 2750000,
64 2800000, 3000000, 3100000, 3300000,
65};
66
67/* The voltage mapping table for LDO2 is the same as VDCDCx */
68#define LDO2_VSEL_table VDCDCx_VSEL_table
69
70struct tps_info {
71 const char *name;
72 u8 table_len;
73 const unsigned int *table;
74
75 /* Does DCDC high or the low register defines output voltage? */
76 bool defdcdc_default;
77};
78
79static struct tps_info tps6507x_pmic_regs[] = {
80 {
81 .name = "VDCDC1",
82 .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
83 .table = VDCDCx_VSEL_table,
84 },
85 {
86 .name = "VDCDC2",
87 .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
88 .table = VDCDCx_VSEL_table,
89 },
90 {
91 .name = "VDCDC3",
92 .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
93 .table = VDCDCx_VSEL_table,
94 },
95 {
96 .name = "LDO1",
97 .table_len = ARRAY_SIZE(LDO1_VSEL_table),
98 .table = LDO1_VSEL_table,
99 },
100 {
101 .name = "LDO2",
102 .table_len = ARRAY_SIZE(LDO2_VSEL_table),
103 .table = LDO2_VSEL_table,
104 },
105};
106
107struct tps6507x_pmic {
108 struct regulator_desc desc[TPS6507X_NUM_REGULATOR];
109 struct tps6507x_dev *mfd;
110 struct tps_info *info[TPS6507X_NUM_REGULATOR];
111 struct mutex io_lock;
112};
113static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg)
114{
115 u8 val;
116 int err;
117
118 err = tps->mfd->read_dev(tps->mfd, reg, 1, &val);
119
120 if (err)
121 return err;
122
123 return val;
124}
125
126static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
127{
128 return tps->mfd->write_dev(tps->mfd, reg, 1, &val);
129}
130
131static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
132{
133 int err, data;
134
135 mutex_lock(&tps->io_lock);
136
137 data = tps6507x_pmic_read(tps, reg);
138 if (data < 0) {
139 dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
140 err = data;
141 goto out;
142 }
143
144 data |= mask;
145 err = tps6507x_pmic_write(tps, reg, data);
146 if (err)
147 dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
148
149out:
150 mutex_unlock(&tps->io_lock);
151 return err;
152}
153
154static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
155{
156 int err, data;
157
158 mutex_lock(&tps->io_lock);
159
160 data = tps6507x_pmic_read(tps, reg);
161 if (data < 0) {
162 dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
163 err = data;
164 goto out;
165 }
166
167 data &= ~mask;
168 err = tps6507x_pmic_write(tps, reg, data);
169 if (err)
170 dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
171
172out:
173 mutex_unlock(&tps->io_lock);
174 return err;
175}
176
177static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg)
178{
179 int data;
180
181 mutex_lock(&tps->io_lock);
182
183 data = tps6507x_pmic_read(tps, reg);
184 if (data < 0)
185 dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
186
187 mutex_unlock(&tps->io_lock);
188 return data;
189}
190
191static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
192{
193 int err;
194
195 mutex_lock(&tps->io_lock);
196
197 err = tps6507x_pmic_write(tps, reg, val);
198 if (err < 0)
199 dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
200
201 mutex_unlock(&tps->io_lock);
202 return err;
203}
204
205static int tps6507x_pmic_is_enabled(struct regulator_dev *dev)
206{
207 struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
208 int data, rid = rdev_get_id(dev);
209 u8 shift;
210
211 if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
212 return -EINVAL;
213
214 shift = TPS6507X_MAX_REG_ID - rid;
215 data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1);
216
217 if (data < 0)
218 return data;
219 else
220 return (data & 1<<shift) ? 1 : 0;
221}
222
223static int tps6507x_pmic_enable(struct regulator_dev *dev)
224{
225 struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
226 int rid = rdev_get_id(dev);
227 u8 shift;
228
229 if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
230 return -EINVAL;
231
232 shift = TPS6507X_MAX_REG_ID - rid;
233 return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
234}
235
236static int tps6507x_pmic_disable(struct regulator_dev *dev)
237{
238 struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
239 int rid = rdev_get_id(dev);
240 u8 shift;
241
242 if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
243 return -EINVAL;
244
245 shift = TPS6507X_MAX_REG_ID - rid;
246 return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1,
247 1 << shift);
248}
249
250static int tps6507x_pmic_get_voltage_sel(struct regulator_dev *dev)
251{
252 struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
253 int data, rid = rdev_get_id(dev);
254 u8 reg, mask;
255
256 switch (rid) {
257 case TPS6507X_DCDC_1:
258 reg = TPS6507X_REG_DEFDCDC1;
259 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
260 break;
261 case TPS6507X_DCDC_2:
262 if (tps->info[rid]->defdcdc_default)
263 reg = TPS6507X_REG_DEFDCDC2_HIGH;
264 else
265 reg = TPS6507X_REG_DEFDCDC2_LOW;
266 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
267 break;
268 case TPS6507X_DCDC_3:
269 if (tps->info[rid]->defdcdc_default)
270 reg = TPS6507X_REG_DEFDCDC3_HIGH;
271 else
272 reg = TPS6507X_REG_DEFDCDC3_LOW;
273 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
274 break;
275 case TPS6507X_LDO_1:
276 reg = TPS6507X_REG_LDO_CTRL1;
277 mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
278 break;
279 case TPS6507X_LDO_2:
280 reg = TPS6507X_REG_DEFLDO2;
281 mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
282 break;
283 default:
284 return -EINVAL;
285 }
286
287 data = tps6507x_pmic_reg_read(tps, reg);
288 if (data < 0)
289 return data;
290
291 data &= mask;
292 return data;
293}
294
295static int tps6507x_pmic_set_voltage_sel(struct regulator_dev *dev,
296 unsigned selector)
297{
298 struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
299 int data, rid = rdev_get_id(dev);
300 u8 reg, mask;
301
302 switch (rid) {
303 case TPS6507X_DCDC_1:
304 reg = TPS6507X_REG_DEFDCDC1;
305 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
306 break;
307 case TPS6507X_DCDC_2:
308 if (tps->info[rid]->defdcdc_default)
309 reg = TPS6507X_REG_DEFDCDC2_HIGH;
310 else
311 reg = TPS6507X_REG_DEFDCDC2_LOW;
312 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
313 break;
314 case TPS6507X_DCDC_3:
315 if (tps->info[rid]->defdcdc_default)
316 reg = TPS6507X_REG_DEFDCDC3_HIGH;
317 else
318 reg = TPS6507X_REG_DEFDCDC3_LOW;
319 mask = TPS6507X_DEFDCDCX_DCDC_MASK;
320 break;
321 case TPS6507X_LDO_1:
322 reg = TPS6507X_REG_LDO_CTRL1;
323 mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
324 break;
325 case TPS6507X_LDO_2:
326 reg = TPS6507X_REG_DEFLDO2;
327 mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
328 break;
329 default:
330 return -EINVAL;
331 }
332
333 data = tps6507x_pmic_reg_read(tps, reg);
334 if (data < 0)
335 return data;
336
337 data &= ~mask;
338 data |= selector;
339
340 return tps6507x_pmic_reg_write(tps, reg, data);
341}
342
343static const struct regulator_ops tps6507x_pmic_ops = {
344 .is_enabled = tps6507x_pmic_is_enabled,
345 .enable = tps6507x_pmic_enable,
346 .disable = tps6507x_pmic_disable,
347 .get_voltage_sel = tps6507x_pmic_get_voltage_sel,
348 .set_voltage_sel = tps6507x_pmic_set_voltage_sel,
349 .list_voltage = regulator_list_voltage_table,
350 .map_voltage = regulator_map_voltage_ascend,
351};
352
353static int tps6507x_pmic_of_parse_cb(struct device_node *np,
354 const struct regulator_desc *desc,
355 struct regulator_config *config)
356{
357 struct tps6507x_pmic *tps = config->driver_data;
358 struct tps_info *info = tps->info[desc->id];
359 u32 prop;
360 int ret;
361
362 ret = of_property_read_u32(np, "ti,defdcdc_default", &prop);
363 if (!ret)
364 info->defdcdc_default = prop;
365
366 return 0;
367}
368
369static int tps6507x_pmic_probe(struct platform_device *pdev)
370{
371 struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
372 struct tps_info *info = &tps6507x_pmic_regs[0];
373 struct regulator_config config = { };
374 struct regulator_init_data *init_data = NULL;
375 struct regulator_dev *rdev;
376 struct tps6507x_pmic *tps;
377 struct tps6507x_board *tps_board;
378 int i;
379
380 /**
381 * tps_board points to pmic related constants
382 * coming from the board-evm file.
383 */
384
385 tps_board = dev_get_platdata(tps6507x_dev->dev);
386 if (tps_board)
387 init_data = tps_board->tps6507x_pmic_init_data;
388
389 tps = devm_kzalloc(&pdev->dev, sizeof(*tps), GFP_KERNEL);
390 if (!tps)
391 return -ENOMEM;
392
393 mutex_init(&tps->io_lock);
394
395 /* common for all regulators */
396 tps->mfd = tps6507x_dev;
397
398 for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++) {
399 /* Register the regulators */
400 tps->info[i] = info;
401 if (init_data && init_data[i].driver_data) {
402 struct tps6507x_reg_platform_data *data =
403 init_data[i].driver_data;
404 info->defdcdc_default = data->defdcdc_default;
405 }
406
407 tps->desc[i].name = info->name;
408 tps->desc[i].of_match = of_match_ptr(info->name);
409 tps->desc[i].regulators_node = of_match_ptr("regulators");
410 tps->desc[i].of_parse_cb = tps6507x_pmic_of_parse_cb;
411 tps->desc[i].id = i;
412 tps->desc[i].n_voltages = info->table_len;
413 tps->desc[i].volt_table = info->table;
414 tps->desc[i].ops = &tps6507x_pmic_ops;
415 tps->desc[i].type = REGULATOR_VOLTAGE;
416 tps->desc[i].owner = THIS_MODULE;
417
418 config.dev = tps6507x_dev->dev;
419 config.init_data = init_data;
420 config.driver_data = tps;
421
422 rdev = devm_regulator_register(&pdev->dev, &tps->desc[i],
423 &config);
424 if (IS_ERR(rdev)) {
425 dev_err(tps6507x_dev->dev,
426 "failed to register %s regulator\n",
427 pdev->name);
428 return PTR_ERR(rdev);
429 }
430 }
431
432 tps6507x_dev->pmic = tps;
433 platform_set_drvdata(pdev, tps6507x_dev);
434
435 return 0;
436}
437
438static struct platform_driver tps6507x_pmic_driver = {
439 .driver = {
440 .name = "tps6507x-pmic",
441 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
442 },
443 .probe = tps6507x_pmic_probe,
444};
445
446static int __init tps6507x_pmic_init(void)
447{
448 return platform_driver_register(&tps6507x_pmic_driver);
449}
450subsys_initcall(tps6507x_pmic_init);
451
452static void __exit tps6507x_pmic_cleanup(void)
453{
454 platform_driver_unregister(&tps6507x_pmic_driver);
455}
456module_exit(tps6507x_pmic_cleanup);
457
458MODULE_AUTHOR("Texas Instruments");
459MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
460MODULE_LICENSE("GPL v2");
461MODULE_ALIAS("platform:tps6507x-pmic");