xref: /openbmc/linux/drivers/regulator/fan53555.c (revision b3cc8ec0) 
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // FAN53555 Fairchild Digitally Programmable TinyBuck Regulator Driver.
4 //
5 // Supported Part Numbers:
6 // FAN53555UC00X/01X/03X/04X/05X
7 //
8 // Copyright (c) 2012 Marvell Technology Ltd.
9 // Yunfan Zhang <yfzhang@marvell.com>
10 
11 #include <linux/module.h>
12 #include <linux/param.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/of_regulator.h>
18 #include <linux/of_device.h>
19 #include <linux/i2c.h>
20 #include <linux/slab.h>
21 #include <linux/regmap.h>
22 #include <linux/regulator/fan53555.h>
23 
24 /* Voltage setting */
25 #define FAN53555_VSEL0		0x00
26 #define FAN53555_VSEL1		0x01
27 
28 #define TCS4525_VSEL0		0x11
29 #define TCS4525_VSEL1		0x10
30 #define TCS4525_TIME		0x13
31 #define TCS4525_COMMAND		0x14
32 
33 /* Control register */
34 #define FAN53555_CONTROL	0x02
35 /* IC Type */
36 #define FAN53555_ID1		0x03
37 /* IC mask version */
38 #define FAN53555_ID2		0x04
39 /* Monitor register */
40 #define FAN53555_MONITOR	0x05
41 
42 /* VSEL bit definitions */
43 #define VSEL_BUCK_EN	(1 << 7)
44 #define VSEL_MODE		(1 << 6)
45 /* Chip ID and Verison */
46 #define DIE_ID		0x0F	/* ID1 */
47 #define DIE_REV		0x0F	/* ID2 */
48 /* Control bit definitions */
49 #define CTL_OUTPUT_DISCHG	(1 << 7)
50 #define CTL_SLEW_MASK		(0x7 << 4)
51 #define CTL_SLEW_SHIFT		4
52 #define CTL_RESET			(1 << 2)
53 #define CTL_MODE_VSEL0_MODE	BIT(0)
54 #define CTL_MODE_VSEL1_MODE	BIT(1)
55 
56 #define FAN53555_NVOLTAGES	64	/* Numbers of voltages */
57 #define FAN53526_NVOLTAGES	128
58 
59 #define TCS_VSEL_NSEL_MASK	0x7f
60 #define TCS_VSEL0_MODE		(1 << 7)
61 #define TCS_VSEL1_MODE		(1 << 6)
62 
63 #define TCS_SLEW_SHIFT		3
64 #define TCS_SLEW_MASK		(0x3 < 3)
65 
66 enum fan53555_vendor {
67 	FAN53526_VENDOR_FAIRCHILD = 0,
68 	FAN53555_VENDOR_FAIRCHILD,
69 	FAN53555_VENDOR_SILERGY,
70 	FAN53526_VENDOR_TCS,
71 };
72 
73 enum {
74 	FAN53526_CHIP_ID_01 = 1,
75 };
76 
77 enum {
78 	FAN53526_CHIP_REV_08 = 8,
79 };
80 
81 /* IC Type */
82 enum {
83 	FAN53555_CHIP_ID_00 = 0,
84 	FAN53555_CHIP_ID_01,
85 	FAN53555_CHIP_ID_02,
86 	FAN53555_CHIP_ID_03,
87 	FAN53555_CHIP_ID_04,
88 	FAN53555_CHIP_ID_05,
89 	FAN53555_CHIP_ID_08 = 8,
90 };
91 
92 enum {
93 	TCS4525_CHIP_ID_12 = 12,
94 };
95 
96 /* IC mask revision */
97 enum {
98 	FAN53555_CHIP_REV_00 = 0x3,
99 	FAN53555_CHIP_REV_13 = 0xf,
100 };
101 
102 enum {
103 	SILERGY_SYR82X = 8,
104 	SILERGY_SYR83X = 9,
105 };
106 
107 struct fan53555_device_info {
108 	enum fan53555_vendor vendor;
109 	struct device *dev;
110 	struct regulator_desc desc;
111 	struct regulator_init_data *regulator;
112 	/* IC Type and Rev */
113 	int chip_id;
114 	int chip_rev;
115 	/* Voltage setting register */
116 	unsigned int vol_reg;
117 	unsigned int sleep_reg;
118 	/* Voltage range and step(linear) */
119 	unsigned int vsel_min;
120 	unsigned int vsel_step;
121 	unsigned int vsel_count;
122 	/* Mode */
123 	unsigned int mode_reg;
124 	unsigned int mode_mask;
125 	/* Sleep voltage cache */
126 	unsigned int sleep_vol_cache;
127 	/* Slew rate */
128 	unsigned int slew_reg;
129 	unsigned int slew_mask;
130 	unsigned int slew_shift;
131 	unsigned int slew_rate;
132 };
133 
134 static int fan53555_set_suspend_voltage(struct regulator_dev *rdev, int uV)
135 {
136 	struct fan53555_device_info *di = rdev_get_drvdata(rdev);
137 	int ret;
138 
139 	if (di->sleep_vol_cache == uV)
140 		return 0;
141 	ret = regulator_map_voltage_linear(rdev, uV, uV);
142 	if (ret < 0)
143 		return ret;
144 	ret = regmap_update_bits(rdev->regmap, di->sleep_reg,
145 				 di->desc.vsel_mask, ret);
146 	if (ret < 0)
147 		return ret;
148 	/* Cache the sleep voltage setting.
149 	 * Might not be the real voltage which is rounded */
150 	di->sleep_vol_cache = uV;
151 
152 	return 0;
153 }
154 
155 static int fan53555_set_suspend_enable(struct regulator_dev *rdev)
156 {
157 	struct fan53555_device_info *di = rdev_get_drvdata(rdev);
158 
159 	return regmap_update_bits(rdev->regmap, di->sleep_reg,
160 				  VSEL_BUCK_EN, VSEL_BUCK_EN);
161 }
162 
163 static int fan53555_set_suspend_disable(struct regulator_dev *rdev)
164 {
165 	struct fan53555_device_info *di = rdev_get_drvdata(rdev);
166 
167 	return regmap_update_bits(rdev->regmap, di->sleep_reg,
168 				  VSEL_BUCK_EN, 0);
169 }
170 
171 static int fan53555_set_mode(struct regulator_dev *rdev, unsigned int mode)
172 {
173 	struct fan53555_device_info *di = rdev_get_drvdata(rdev);
174 
175 	switch (mode) {
176 	case REGULATOR_MODE_FAST:
177 		regmap_update_bits(rdev->regmap, di->mode_reg,
178 				   di->mode_mask, di->mode_mask);
179 		break;
180 	case REGULATOR_MODE_NORMAL:
181 		regmap_update_bits(rdev->regmap, di->vol_reg, di->mode_mask, 0);
182 		break;
183 	default:
184 		return -EINVAL;
185 	}
186 	return 0;
187 }
188 
189 static unsigned int fan53555_get_mode(struct regulator_dev *rdev)
190 {
191 	struct fan53555_device_info *di = rdev_get_drvdata(rdev);
192 	unsigned int val;
193 	int ret = 0;
194 
195 	ret = regmap_read(rdev->regmap, di->mode_reg, &val);
196 	if (ret < 0)
197 		return ret;
198 	if (val & di->mode_mask)
199 		return REGULATOR_MODE_FAST;
200 	else
201 		return REGULATOR_MODE_NORMAL;
202 }
203 
204 static const int slew_rates[] = {
205 	64000,
206 	32000,
207 	16000,
208 	 8000,
209 	 4000,
210 	 2000,
211 	 1000,
212 	  500,
213 };
214 
215 static const int tcs_slew_rates[] = {
216 	18700,
217 	 9300,
218 	 4600,
219 	 2300,
220 };
221 
222 static int fan53555_set_ramp(struct regulator_dev *rdev, int ramp)
223 {
224 	struct fan53555_device_info *di = rdev_get_drvdata(rdev);
225 	int regval = -1, i;
226 	const int *slew_rate_t;
227 	int slew_rate_n;
228 
229 	switch (di->vendor) {
230 	case FAN53526_VENDOR_FAIRCHILD:
231 	case FAN53555_VENDOR_FAIRCHILD:
232 	case FAN53555_VENDOR_SILERGY:
233 		slew_rate_t = slew_rates;
234 		slew_rate_n = ARRAY_SIZE(slew_rates);
235 		break;
236 	case FAN53526_VENDOR_TCS:
237 		slew_rate_t = tcs_slew_rates;
238 		slew_rate_n = ARRAY_SIZE(tcs_slew_rates);
239 		break;
240 	default:
241 		return -EINVAL;
242 	}
243 
244 	for (i = 0; i < slew_rate_n; i++) {
245 		if (ramp <= slew_rate_t[i])
246 			regval = i;
247 		else
248 			break;
249 	}
250 
251 	if (regval < 0) {
252 		dev_err(di->dev, "unsupported ramp value %d\n", ramp);
253 		return -EINVAL;
254 	}
255 
256 	return regmap_update_bits(rdev->regmap, di->slew_reg,
257 				  di->slew_mask, regval << di->slew_shift);
258 }
259 
260 static const struct regulator_ops fan53555_regulator_ops = {
261 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
262 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
263 	.set_voltage_time_sel = regulator_set_voltage_time_sel,
264 	.map_voltage = regulator_map_voltage_linear,
265 	.list_voltage = regulator_list_voltage_linear,
266 	.set_suspend_voltage = fan53555_set_suspend_voltage,
267 	.enable = regulator_enable_regmap,
268 	.disable = regulator_disable_regmap,
269 	.is_enabled = regulator_is_enabled_regmap,
270 	.set_mode = fan53555_set_mode,
271 	.get_mode = fan53555_get_mode,
272 	.set_ramp_delay = fan53555_set_ramp,
273 	.set_suspend_enable = fan53555_set_suspend_enable,
274 	.set_suspend_disable = fan53555_set_suspend_disable,
275 };
276 
277 static int fan53526_voltages_setup_fairchild(struct fan53555_device_info *di)
278 {
279 	/* Init voltage range and step */
280 	switch (di->chip_id) {
281 	case FAN53526_CHIP_ID_01:
282 		switch (di->chip_rev) {
283 		case FAN53526_CHIP_REV_08:
284 			di->vsel_min = 600000;
285 			di->vsel_step = 6250;
286 			break;
287 		default:
288 			dev_err(di->dev,
289 				"Chip ID %d with rev %d not supported!\n",
290 				di->chip_id, di->chip_rev);
291 			return -EINVAL;
292 		}
293 		break;
294 	default:
295 		dev_err(di->dev,
296 			"Chip ID %d not supported!\n", di->chip_id);
297 		return -EINVAL;
298 	}
299 
300 	di->vsel_count = FAN53526_NVOLTAGES;
301 
302 	return 0;
303 }
304 
305 static int fan53555_voltages_setup_fairchild(struct fan53555_device_info *di)
306 {
307 	/* Init voltage range and step */
308 	switch (di->chip_id) {
309 	case FAN53555_CHIP_ID_00:
310 		switch (di->chip_rev) {
311 		case FAN53555_CHIP_REV_00:
312 			di->vsel_min = 600000;
313 			di->vsel_step = 10000;
314 			break;
315 		case FAN53555_CHIP_REV_13:
316 			di->vsel_min = 800000;
317 			di->vsel_step = 10000;
318 			break;
319 		default:
320 			dev_err(di->dev,
321 				"Chip ID %d with rev %d not supported!\n",
322 				di->chip_id, di->chip_rev);
323 			return -EINVAL;
324 		}
325 		break;
326 	case FAN53555_CHIP_ID_01:
327 	case FAN53555_CHIP_ID_03:
328 	case FAN53555_CHIP_ID_05:
329 	case FAN53555_CHIP_ID_08:
330 		di->vsel_min = 600000;
331 		di->vsel_step = 10000;
332 		break;
333 	case FAN53555_CHIP_ID_04:
334 		di->vsel_min = 603000;
335 		di->vsel_step = 12826;
336 		break;
337 	default:
338 		dev_err(di->dev,
339 			"Chip ID %d not supported!\n", di->chip_id);
340 		return -EINVAL;
341 	}
342 	di->slew_reg = FAN53555_CONTROL;
343 	di->slew_mask = CTL_SLEW_MASK;
344 	di->slew_shift = CTL_SLEW_SHIFT;
345 	di->vsel_count = FAN53555_NVOLTAGES;
346 
347 	return 0;
348 }
349 
350 static int fan53555_voltages_setup_silergy(struct fan53555_device_info *di)
351 {
352 	/* Init voltage range and step */
353 	switch (di->chip_id) {
354 	case SILERGY_SYR82X:
355 	case SILERGY_SYR83X:
356 		di->vsel_min = 712500;
357 		di->vsel_step = 12500;
358 		break;
359 	default:
360 		dev_err(di->dev,
361 			"Chip ID %d not supported!\n", di->chip_id);
362 		return -EINVAL;
363 	}
364 	di->slew_reg = FAN53555_CONTROL;
365 	di->slew_reg = FAN53555_CONTROL;
366 	di->slew_mask = CTL_SLEW_MASK;
367 	di->slew_shift = CTL_SLEW_SHIFT;
368 	di->vsel_count = FAN53555_NVOLTAGES;
369 
370 	return 0;
371 }
372 
373 static int fan53526_voltages_setup_tcs(struct fan53555_device_info *di)
374 {
375 	switch (di->chip_id) {
376 	case TCS4525_CHIP_ID_12:
377 		di->slew_reg = TCS4525_TIME;
378 		di->slew_mask = TCS_SLEW_MASK;
379 		di->slew_shift = TCS_SLEW_MASK;
380 
381 		/* Init voltage range and step */
382 		di->vsel_min = 600000;
383 		di->vsel_step = 6250;
384 		di->vsel_count = FAN53526_NVOLTAGES;
385 		break;
386 	default:
387 		dev_err(di->dev, "Chip ID %d not supported!\n", di->chip_id);
388 		return -EINVAL;
389 	}
390 
391 	return 0;
392 }
393 
394 /* For 00,01,03,05 options:
395  * VOUT = 0.60V + NSELx * 10mV, from 0.60 to 1.23V.
396  * For 04 option:
397  * VOUT = 0.603V + NSELx * 12.826mV, from 0.603 to 1.411V.
398  * */
399 static int fan53555_device_setup(struct fan53555_device_info *di,
400 				struct fan53555_platform_data *pdata)
401 {
402 	int ret = 0;
403 
404 	/* Setup voltage control register */
405 	switch (di->vendor) {
406 	case FAN53526_VENDOR_FAIRCHILD:
407 	case FAN53555_VENDOR_FAIRCHILD:
408 	case FAN53555_VENDOR_SILERGY:
409 		switch (pdata->sleep_vsel_id) {
410 		case FAN53555_VSEL_ID_0:
411 			di->sleep_reg = FAN53555_VSEL0;
412 			di->vol_reg = FAN53555_VSEL1;
413 			break;
414 		case FAN53555_VSEL_ID_1:
415 			di->sleep_reg = FAN53555_VSEL1;
416 			di->vol_reg = FAN53555_VSEL0;
417 			break;
418 		default:
419 			dev_err(di->dev, "Invalid VSEL ID!\n");
420 			return -EINVAL;
421 		}
422 		break;
423 	case FAN53526_VENDOR_TCS:
424 		switch (pdata->sleep_vsel_id) {
425 		case FAN53555_VSEL_ID_0:
426 			di->sleep_reg = TCS4525_VSEL0;
427 			di->vol_reg = TCS4525_VSEL1;
428 			break;
429 		case FAN53555_VSEL_ID_1:
430 			di->sleep_reg = TCS4525_VSEL1;
431 			di->vol_reg = TCS4525_VSEL0;
432 			break;
433 		default:
434 			dev_err(di->dev, "Invalid VSEL ID!\n");
435 			return -EINVAL;
436 		}
437 		break;
438 	default:
439 		dev_err(di->dev, "vendor %d not supported!\n", di->vendor);
440 		return -EINVAL;
441 	}
442 
443 	/* Setup mode control register */
444 	switch (di->vendor) {
445 	case FAN53526_VENDOR_FAIRCHILD:
446 		di->mode_reg = FAN53555_CONTROL;
447 
448 		switch (pdata->sleep_vsel_id) {
449 		case FAN53555_VSEL_ID_0:
450 			di->mode_mask = CTL_MODE_VSEL1_MODE;
451 			break;
452 		case FAN53555_VSEL_ID_1:
453 			di->mode_mask = CTL_MODE_VSEL0_MODE;
454 			break;
455 		}
456 		break;
457 	case FAN53555_VENDOR_FAIRCHILD:
458 	case FAN53555_VENDOR_SILERGY:
459 		di->mode_reg = di->vol_reg;
460 		di->mode_mask = VSEL_MODE;
461 		break;
462 	case FAN53526_VENDOR_TCS:
463 		di->mode_reg = TCS4525_COMMAND;
464 
465 		switch (pdata->sleep_vsel_id) {
466 		case FAN53555_VSEL_ID_0:
467 			di->mode_mask = TCS_VSEL1_MODE;
468 			break;
469 		case FAN53555_VSEL_ID_1:
470 			di->mode_mask = TCS_VSEL0_MODE;
471 			break;
472 		}
473 		break;
474 	default:
475 		dev_err(di->dev, "vendor %d not supported!\n", di->vendor);
476 		return -EINVAL;
477 	}
478 
479 	/* Setup voltage range */
480 	switch (di->vendor) {
481 	case FAN53526_VENDOR_FAIRCHILD:
482 		ret = fan53526_voltages_setup_fairchild(di);
483 		break;
484 	case FAN53555_VENDOR_FAIRCHILD:
485 		ret = fan53555_voltages_setup_fairchild(di);
486 		break;
487 	case FAN53555_VENDOR_SILERGY:
488 		ret = fan53555_voltages_setup_silergy(di);
489 		break;
490 	case FAN53526_VENDOR_TCS:
491 		ret = fan53526_voltages_setup_tcs(di);
492 		break;
493 	default:
494 		dev_err(di->dev, "vendor %d not supported!\n", di->vendor);
495 		return -EINVAL;
496 	}
497 
498 	return ret;
499 }
500 
501 static int fan53555_regulator_register(struct fan53555_device_info *di,
502 			struct regulator_config *config)
503 {
504 	struct regulator_desc *rdesc = &di->desc;
505 	struct regulator_dev *rdev;
506 
507 	rdesc->name = "fan53555-reg";
508 	rdesc->supply_name = "vin";
509 	rdesc->ops = &fan53555_regulator_ops;
510 	rdesc->type = REGULATOR_VOLTAGE;
511 	rdesc->n_voltages = di->vsel_count;
512 	rdesc->enable_reg = di->vol_reg;
513 	rdesc->enable_mask = VSEL_BUCK_EN;
514 	rdesc->min_uV = di->vsel_min;
515 	rdesc->uV_step = di->vsel_step;
516 	rdesc->vsel_reg = di->vol_reg;
517 	rdesc->vsel_mask = di->vsel_count - 1;
518 	rdesc->owner = THIS_MODULE;
519 
520 	rdev = devm_regulator_register(di->dev, &di->desc, config);
521 	return PTR_ERR_OR_ZERO(rdev);
522 }
523 
524 static const struct regmap_config fan53555_regmap_config = {
525 	.reg_bits = 8,
526 	.val_bits = 8,
527 };
528 
529 static struct fan53555_platform_data *fan53555_parse_dt(struct device *dev,
530 					      struct device_node *np,
531 					      const struct regulator_desc *desc)
532 {
533 	struct fan53555_platform_data *pdata;
534 	int ret;
535 	u32 tmp;
536 
537 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
538 	if (!pdata)
539 		return NULL;
540 
541 	pdata->regulator = of_get_regulator_init_data(dev, np, desc);
542 
543 	ret = of_property_read_u32(np, "fcs,suspend-voltage-selector",
544 				   &tmp);
545 	if (!ret)
546 		pdata->sleep_vsel_id = tmp;
547 
548 	return pdata;
549 }
550 
551 static const struct of_device_id __maybe_unused fan53555_dt_ids[] = {
552 	{
553 		.compatible = "fcs,fan53526",
554 		.data = (void *)FAN53526_VENDOR_FAIRCHILD,
555 	}, {
556 		.compatible = "fcs,fan53555",
557 		.data = (void *)FAN53555_VENDOR_FAIRCHILD
558 	}, {
559 		.compatible = "silergy,syr827",
560 		.data = (void *)FAN53555_VENDOR_SILERGY,
561 	}, {
562 		.compatible = "silergy,syr828",
563 		.data = (void *)FAN53555_VENDOR_SILERGY,
564 	}, {
565 		.compatible = "tcs,tcs4525",
566 		.data = (void *)FAN53526_VENDOR_TCS
567 	},
568 	{ }
569 };
570 MODULE_DEVICE_TABLE(of, fan53555_dt_ids);
571 
572 static int fan53555_regulator_probe(struct i2c_client *client,
573 				const struct i2c_device_id *id)
574 {
575 	struct device_node *np = client->dev.of_node;
576 	struct fan53555_device_info *di;
577 	struct fan53555_platform_data *pdata;
578 	struct regulator_config config = { };
579 	struct regmap *regmap;
580 	unsigned int val;
581 	int ret;
582 
583 	di = devm_kzalloc(&client->dev, sizeof(struct fan53555_device_info),
584 					GFP_KERNEL);
585 	if (!di)
586 		return -ENOMEM;
587 
588 	pdata = dev_get_platdata(&client->dev);
589 	if (!pdata)
590 		pdata = fan53555_parse_dt(&client->dev, np, &di->desc);
591 
592 	if (!pdata || !pdata->regulator) {
593 		dev_err(&client->dev, "Platform data not found!\n");
594 		return -ENODEV;
595 	}
596 
597 	di->regulator = pdata->regulator;
598 	if (client->dev.of_node) {
599 		di->vendor =
600 			(unsigned long)of_device_get_match_data(&client->dev);
601 	} else {
602 		/* if no ramp constraint set, get the pdata ramp_delay */
603 		if (!di->regulator->constraints.ramp_delay) {
604 			if (pdata->slew_rate >= ARRAY_SIZE(slew_rates)) {
605 				dev_err(&client->dev, "Invalid slew_rate\n");
606 				return -EINVAL;
607 			}
608 
609 			di->regulator->constraints.ramp_delay
610 					= slew_rates[pdata->slew_rate];
611 		}
612 
613 		di->vendor = id->driver_data;
614 	}
615 
616 	regmap = devm_regmap_init_i2c(client, &fan53555_regmap_config);
617 	if (IS_ERR(regmap)) {
618 		dev_err(&client->dev, "Failed to allocate regmap!\n");
619 		return PTR_ERR(regmap);
620 	}
621 	di->dev = &client->dev;
622 	i2c_set_clientdata(client, di);
623 	/* Get chip ID */
624 	ret = regmap_read(regmap, FAN53555_ID1, &val);
625 	if (ret < 0) {
626 		dev_err(&client->dev, "Failed to get chip ID!\n");
627 		return ret;
628 	}
629 	di->chip_id = val & DIE_ID;
630 	/* Get chip revision */
631 	ret = regmap_read(regmap, FAN53555_ID2, &val);
632 	if (ret < 0) {
633 		dev_err(&client->dev, "Failed to get chip Rev!\n");
634 		return ret;
635 	}
636 	di->chip_rev = val & DIE_REV;
637 	dev_info(&client->dev, "FAN53555 Option[%d] Rev[%d] Detected!\n",
638 				di->chip_id, di->chip_rev);
639 	/* Device init */
640 	ret = fan53555_device_setup(di, pdata);
641 	if (ret < 0) {
642 		dev_err(&client->dev, "Failed to setup device!\n");
643 		return ret;
644 	}
645 	/* Register regulator */
646 	config.dev = di->dev;
647 	config.init_data = di->regulator;
648 	config.regmap = regmap;
649 	config.driver_data = di;
650 	config.of_node = np;
651 
652 	ret = fan53555_regulator_register(di, &config);
653 	if (ret < 0)
654 		dev_err(&client->dev, "Failed to register regulator!\n");
655 	return ret;
656 
657 }
658 
659 static const struct i2c_device_id fan53555_id[] = {
660 	{
661 		.name = "fan53526",
662 		.driver_data = FAN53526_VENDOR_FAIRCHILD
663 	}, {
664 		.name = "fan53555",
665 		.driver_data = FAN53555_VENDOR_FAIRCHILD
666 	}, {
667 		.name = "syr827",
668 		.driver_data = FAN53555_VENDOR_SILERGY
669 	}, {
670 		.name = "syr828",
671 		.driver_data = FAN53555_VENDOR_SILERGY
672 	}, {
673 		.name = "tcs4525",
674 		.driver_data = FAN53526_VENDOR_TCS
675 	},
676 	{ },
677 };
678 MODULE_DEVICE_TABLE(i2c, fan53555_id);
679 
680 static struct i2c_driver fan53555_regulator_driver = {
681 	.driver = {
682 		.name = "fan53555-regulator",
683 		.of_match_table = of_match_ptr(fan53555_dt_ids),
684 	},
685 	.probe = fan53555_regulator_probe,
686 	.id_table = fan53555_id,
687 };
688 
689 module_i2c_driver(fan53555_regulator_driver);
690 
691 MODULE_AUTHOR("Yunfan Zhang <yfzhang@marvell.com>");
692 MODULE_DESCRIPTION("FAN53555 regulator driver");
693 MODULE_LICENSE("GPL v2");
694