1 /*
2  * Regulator Driver for Freescale MC13783 PMIC
3  *
4  * Copyright 2010 Yong Shen <yong.shen@linaro.org>
5  * Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
6  * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  */
12 
13 #include <linux/mfd/mc13783.h>
14 #include <linux/regulator/machine.h>
15 #include <linux/regulator/driver.h>
16 #include <linux/platform_device.h>
17 #include <linux/kernel.h>
18 #include <linux/slab.h>
19 #include <linux/init.h>
20 #include <linux/err.h>
21 #include <linux/module.h>
22 #include "mc13xxx.h"
23 
24 #define MC13783_REG_SWITCHERS0			24
25 /* Enable does not exist for SW1A */
26 #define MC13783_REG_SWITCHERS0_SW1AEN			0
27 #define MC13783_REG_SWITCHERS0_SW1AVSEL			0
28 #define MC13783_REG_SWITCHERS0_SW1AVSEL_M		(63 << 0)
29 
30 #define MC13783_REG_SWITCHERS1			25
31 /* Enable does not exist for SW1B */
32 #define MC13783_REG_SWITCHERS1_SW1BEN			0
33 #define MC13783_REG_SWITCHERS1_SW1BVSEL			0
34 #define MC13783_REG_SWITCHERS1_SW1BVSEL_M		(63 << 0)
35 
36 #define MC13783_REG_SWITCHERS2			26
37 /* Enable does not exist for SW2A */
38 #define MC13783_REG_SWITCHERS2_SW2AEN			0
39 #define MC13783_REG_SWITCHERS2_SW2AVSEL			0
40 #define MC13783_REG_SWITCHERS2_SW2AVSEL_M		(63 << 0)
41 
42 #define MC13783_REG_SWITCHERS3			27
43 /* Enable does not exist for SW2B */
44 #define MC13783_REG_SWITCHERS3_SW2BEN			0
45 #define MC13783_REG_SWITCHERS3_SW2BVSEL			0
46 #define MC13783_REG_SWITCHERS3_SW2BVSEL_M		(63 << 0)
47 
48 #define MC13783_REG_SWITCHERS5			29
49 #define MC13783_REG_SWITCHERS5_SW3EN			(1 << 20)
50 #define MC13783_REG_SWITCHERS5_SW3VSEL			18
51 #define MC13783_REG_SWITCHERS5_SW3VSEL_M		(3 << 18)
52 
53 #define MC13783_REG_REGULATORSETTING0		30
54 #define MC13783_REG_REGULATORSETTING0_VIOLOVSEL		2
55 #define MC13783_REG_REGULATORSETTING0_VDIGVSEL		4
56 #define MC13783_REG_REGULATORSETTING0_VGENVSEL		6
57 #define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL	9
58 #define MC13783_REG_REGULATORSETTING0_VRFREFVSEL	11
59 #define MC13783_REG_REGULATORSETTING0_VRFCPVSEL		13
60 #define MC13783_REG_REGULATORSETTING0_VSIMVSEL		14
61 #define MC13783_REG_REGULATORSETTING0_VESIMVSEL		15
62 #define MC13783_REG_REGULATORSETTING0_VCAMVSEL		16
63 
64 #define MC13783_REG_REGULATORSETTING0_VIOLOVSEL_M	(3 << 2)
65 #define MC13783_REG_REGULATORSETTING0_VDIGVSEL_M	(3 << 4)
66 #define MC13783_REG_REGULATORSETTING0_VGENVSEL_M	(7 << 6)
67 #define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL_M	(3 << 9)
68 #define MC13783_REG_REGULATORSETTING0_VRFREFVSEL_M	(3 << 11)
69 #define MC13783_REG_REGULATORSETTING0_VRFCPVSEL_M	(1 << 13)
70 #define MC13783_REG_REGULATORSETTING0_VSIMVSEL_M	(1 << 14)
71 #define MC13783_REG_REGULATORSETTING0_VESIMVSEL_M	(1 << 15)
72 #define MC13783_REG_REGULATORSETTING0_VCAMVSEL_M	(7 << 16)
73 
74 #define MC13783_REG_REGULATORSETTING1		31
75 #define MC13783_REG_REGULATORSETTING1_VVIBVSEL		0
76 #define MC13783_REG_REGULATORSETTING1_VRF1VSEL		2
77 #define MC13783_REG_REGULATORSETTING1_VRF2VSEL		4
78 #define MC13783_REG_REGULATORSETTING1_VMMC1VSEL		6
79 #define MC13783_REG_REGULATORSETTING1_VMMC2VSEL		9
80 
81 #define MC13783_REG_REGULATORSETTING1_VVIBVSEL_M	(3 << 0)
82 #define MC13783_REG_REGULATORSETTING1_VRF1VSEL_M	(3 << 2)
83 #define MC13783_REG_REGULATORSETTING1_VRF2VSEL_M	(3 << 4)
84 #define MC13783_REG_REGULATORSETTING1_VMMC1VSEL_M	(7 << 6)
85 #define MC13783_REG_REGULATORSETTING1_VMMC2VSEL_M	(7 << 9)
86 
87 #define MC13783_REG_REGULATORMODE0		32
88 #define MC13783_REG_REGULATORMODE0_VAUDIOEN		(1 << 0)
89 #define MC13783_REG_REGULATORMODE0_VIOHIEN		(1 << 3)
90 #define MC13783_REG_REGULATORMODE0_VIOLOEN		(1 << 6)
91 #define MC13783_REG_REGULATORMODE0_VDIGEN		(1 << 9)
92 #define MC13783_REG_REGULATORMODE0_VGENEN		(1 << 12)
93 #define MC13783_REG_REGULATORMODE0_VRFDIGEN		(1 << 15)
94 #define MC13783_REG_REGULATORMODE0_VRFREFEN		(1 << 18)
95 #define MC13783_REG_REGULATORMODE0_VRFCPEN		(1 << 21)
96 
97 #define MC13783_REG_REGULATORMODE1		33
98 #define MC13783_REG_REGULATORMODE1_VSIMEN		(1 << 0)
99 #define MC13783_REG_REGULATORMODE1_VESIMEN		(1 << 3)
100 #define MC13783_REG_REGULATORMODE1_VCAMEN		(1 << 6)
101 #define MC13783_REG_REGULATORMODE1_VRFBGEN		(1 << 9)
102 #define MC13783_REG_REGULATORMODE1_VVIBEN		(1 << 11)
103 #define MC13783_REG_REGULATORMODE1_VRF1EN		(1 << 12)
104 #define MC13783_REG_REGULATORMODE1_VRF2EN		(1 << 15)
105 #define MC13783_REG_REGULATORMODE1_VMMC1EN		(1 << 18)
106 #define MC13783_REG_REGULATORMODE1_VMMC2EN		(1 << 21)
107 
108 #define MC13783_REG_POWERMISC			34
109 #define MC13783_REG_POWERMISC_GPO1EN			(1 << 6)
110 #define MC13783_REG_POWERMISC_GPO2EN			(1 << 8)
111 #define MC13783_REG_POWERMISC_GPO3EN			(1 << 10)
112 #define MC13783_REG_POWERMISC_GPO4EN			(1 << 12)
113 #define MC13783_REG_POWERMISC_PWGT1SPIEN		(1 << 15)
114 #define MC13783_REG_POWERMISC_PWGT2SPIEN		(1 << 16)
115 
116 #define MC13783_REG_POWERMISC_PWGTSPI_M			(3 << 15)
117 
118 
119 /* Voltage Values */
120 static const int mc13783_sw1x_val[] = {
121 	900000, 925000, 950000, 975000,
122 	1000000, 1025000, 1050000, 1075000,
123 	1100000, 1125000, 1150000, 1175000,
124 	1200000, 1225000, 1250000, 1275000,
125 	1300000, 1325000, 1350000, 1375000,
126 	1400000, 1425000, 1450000, 1475000,
127 	1500000, 1525000, 1550000, 1575000,
128 	1600000, 1625000, 1650000, 1675000,
129 	1700000, 1700000, 1700000, 1700000,
130 	1800000, 1800000, 1800000, 1800000,
131 	1850000, 1850000, 1850000, 1850000,
132 	2000000, 2000000, 2000000, 2000000,
133 	2100000, 2100000, 2100000, 2100000,
134 	2200000, 2200000, 2200000, 2200000,
135 	2200000, 2200000, 2200000, 2200000,
136 	2200000, 2200000, 2200000, 2200000,
137 };
138 
139 static const int mc13783_sw2x_val[] = {
140 	900000, 925000, 950000, 975000,
141 	1000000, 1025000, 1050000, 1075000,
142 	1100000, 1125000, 1150000, 1175000,
143 	1200000, 1225000, 1250000, 1275000,
144 	1300000, 1325000, 1350000, 1375000,
145 	1400000, 1425000, 1450000, 1475000,
146 	1500000, 1525000, 1550000, 1575000,
147 	1600000, 1625000, 1650000, 1675000,
148 	1700000, 1700000, 1700000, 1700000,
149 	1800000, 1800000, 1800000, 1800000,
150 	1900000, 1900000, 1900000, 1900000,
151 	2000000, 2000000, 2000000, 2000000,
152 	2100000, 2100000, 2100000, 2100000,
153 	2200000, 2200000, 2200000, 2200000,
154 	2200000, 2200000, 2200000, 2200000,
155 	2200000, 2200000, 2200000, 2200000,
156 };
157 
158 static const unsigned int mc13783_sw3_val[] = {
159 	5000000, 5000000, 5000000, 5500000,
160 };
161 
162 static const unsigned int mc13783_vaudio_val[] = {
163 	2775000,
164 };
165 
166 static const unsigned int mc13783_viohi_val[] = {
167 	2775000,
168 };
169 
170 static const unsigned int mc13783_violo_val[] = {
171 	1200000, 1300000, 1500000, 1800000,
172 };
173 
174 static const unsigned int mc13783_vdig_val[] = {
175 	1200000, 1300000, 1500000, 1800000,
176 };
177 
178 static const unsigned int mc13783_vgen_val[] = {
179 	1200000, 1300000, 1500000, 1800000,
180 	1100000, 2000000, 2775000, 2400000,
181 };
182 
183 static const unsigned int mc13783_vrfdig_val[] = {
184 	1200000, 1500000, 1800000, 1875000,
185 };
186 
187 static const unsigned int mc13783_vrfref_val[] = {
188 	2475000, 2600000, 2700000, 2775000,
189 };
190 
191 static const unsigned int mc13783_vrfcp_val[] = {
192 	2700000, 2775000,
193 };
194 
195 static const unsigned int mc13783_vsim_val[] = {
196 	1800000, 2900000, 3000000,
197 };
198 
199 static const unsigned int mc13783_vesim_val[] = {
200 	1800000, 2900000,
201 };
202 
203 static const unsigned int mc13783_vcam_val[] = {
204 	1500000, 1800000, 2500000, 2550000,
205 	2600000, 2750000, 2800000, 3000000,
206 };
207 
208 static const unsigned int mc13783_vrfbg_val[] = {
209 	1250000,
210 };
211 
212 static const unsigned int mc13783_vvib_val[] = {
213 	1300000, 1800000, 2000000, 3000000,
214 };
215 
216 static const unsigned int mc13783_vmmc_val[] = {
217 	1600000, 1800000, 2000000, 2600000,
218 	2700000, 2800000, 2900000, 3000000,
219 };
220 
221 static const unsigned int mc13783_vrf_val[] = {
222 	1500000, 1875000, 2700000, 2775000,
223 };
224 
225 static const unsigned int mc13783_gpo_val[] = {
226 	3100000,
227 };
228 
229 static const unsigned int mc13783_pwgtdrv_val[] = {
230 	5500000,
231 };
232 
233 static struct regulator_ops mc13783_gpo_regulator_ops;
234 
235 #define MC13783_DEFINE(prefix, name, reg, vsel_reg, voltages)	\
236 	MC13xxx_DEFINE(MC13783_REG_, name, reg, vsel_reg, voltages, \
237 			mc13xxx_regulator_ops)
238 
239 #define MC13783_FIXED_DEFINE(prefix, name, reg, voltages)		\
240 	MC13xxx_FIXED_DEFINE(MC13783_REG_, name, reg, voltages, \
241 			mc13xxx_fixed_regulator_ops)
242 
243 #define MC13783_GPO_DEFINE(prefix, name, reg, voltages)		\
244 	MC13xxx_GPO_DEFINE(MC13783_REG_, name, reg, voltages, \
245 			mc13783_gpo_regulator_ops)
246 
247 #define MC13783_DEFINE_SW(_name, _reg, _vsel_reg, _voltages)		\
248 	MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
249 #define MC13783_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages)		\
250 	MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
251 
252 static struct mc13xxx_regulator mc13783_regulators[] = {
253 	MC13783_DEFINE_SW(SW1A, SWITCHERS0, SWITCHERS0, mc13783_sw1x_val),
254 	MC13783_DEFINE_SW(SW1B, SWITCHERS1, SWITCHERS1, mc13783_sw1x_val),
255 	MC13783_DEFINE_SW(SW2A, SWITCHERS2, SWITCHERS2, mc13783_sw2x_val),
256 	MC13783_DEFINE_SW(SW2B, SWITCHERS3, SWITCHERS3, mc13783_sw2x_val),
257 	MC13783_DEFINE_SW(SW3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val),
258 
259 	MC13783_FIXED_DEFINE(REG, VAUDIO, REGULATORMODE0, mc13783_vaudio_val),
260 	MC13783_FIXED_DEFINE(REG, VIOHI, REGULATORMODE0, mc13783_viohi_val),
261 	MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0, REGULATORSETTING0,
262 			    mc13783_violo_val),
263 	MC13783_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0,
264 			    mc13783_vdig_val),
265 	MC13783_DEFINE_REGU(VGEN, REGULATORMODE0, REGULATORSETTING0,
266 			    mc13783_vgen_val),
267 	MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0, REGULATORSETTING0,
268 			    mc13783_vrfdig_val),
269 	MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0, REGULATORSETTING0,
270 			    mc13783_vrfref_val),
271 	MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0, REGULATORSETTING0,
272 			    mc13783_vrfcp_val),
273 	MC13783_DEFINE_REGU(VSIM, REGULATORMODE1, REGULATORSETTING0,
274 			    mc13783_vsim_val),
275 	MC13783_DEFINE_REGU(VESIM, REGULATORMODE1, REGULATORSETTING0,
276 			    mc13783_vesim_val),
277 	MC13783_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0,
278 			    mc13783_vcam_val),
279 	MC13783_FIXED_DEFINE(REG, VRFBG, REGULATORMODE1, mc13783_vrfbg_val),
280 	MC13783_DEFINE_REGU(VVIB, REGULATORMODE1, REGULATORSETTING1,
281 			    mc13783_vvib_val),
282 	MC13783_DEFINE_REGU(VRF1, REGULATORMODE1, REGULATORSETTING1,
283 			    mc13783_vrf_val),
284 	MC13783_DEFINE_REGU(VRF2, REGULATORMODE1, REGULATORSETTING1,
285 			    mc13783_vrf_val),
286 	MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1, REGULATORSETTING1,
287 			    mc13783_vmmc_val),
288 	MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1, REGULATORSETTING1,
289 			    mc13783_vmmc_val),
290 	MC13783_GPO_DEFINE(REG, GPO1, POWERMISC, mc13783_gpo_val),
291 	MC13783_GPO_DEFINE(REG, GPO2, POWERMISC, mc13783_gpo_val),
292 	MC13783_GPO_DEFINE(REG, GPO3, POWERMISC, mc13783_gpo_val),
293 	MC13783_GPO_DEFINE(REG, GPO4, POWERMISC, mc13783_gpo_val),
294 	MC13783_GPO_DEFINE(REG, PWGT1SPI, POWERMISC, mc13783_pwgtdrv_val),
295 	MC13783_GPO_DEFINE(REG, PWGT2SPI, POWERMISC, mc13783_pwgtdrv_val),
296 };
297 
298 static int mc13783_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
299 		u32 val)
300 {
301 	struct mc13xxx *mc13783 = priv->mc13xxx;
302 	int ret;
303 	u32 valread;
304 
305 	BUG_ON(val & ~mask);
306 
307 	mc13xxx_lock(priv->mc13xxx);
308 	ret = mc13xxx_reg_read(mc13783, MC13783_REG_POWERMISC, &valread);
309 	if (ret)
310 		goto out;
311 
312 	/* Update the stored state for Power Gates. */
313 	priv->powermisc_pwgt_state =
314 				(priv->powermisc_pwgt_state & ~mask) | val;
315 	priv->powermisc_pwgt_state &= MC13783_REG_POWERMISC_PWGTSPI_M;
316 
317 	/* Construct the new register value */
318 	valread = (valread & ~mask) | val;
319 	/* Overwrite the PWGTxEN with the stored version */
320 	valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
321 						priv->powermisc_pwgt_state;
322 
323 	ret = mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
324 out:
325 	mc13xxx_unlock(priv->mc13xxx);
326 	return ret;
327 }
328 
329 static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
330 {
331 	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
332 	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
333 	int id = rdev_get_id(rdev);
334 	u32 en_val = mc13xxx_regulators[id].enable_bit;
335 
336 	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
337 
338 	/* Power Gate enable value is 0 */
339 	if (id == MC13783_REG_PWGT1SPI ||
340 	    id == MC13783_REG_PWGT2SPI)
341 		en_val = 0;
342 
343 	return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
344 					en_val);
345 }
346 
347 static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
348 {
349 	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
350 	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
351 	int id = rdev_get_id(rdev);
352 	u32 dis_val = 0;
353 
354 	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
355 
356 	/* Power Gate disable value is 1 */
357 	if (id == MC13783_REG_PWGT1SPI ||
358 	    id == MC13783_REG_PWGT2SPI)
359 		dis_val = mc13xxx_regulators[id].enable_bit;
360 
361 	return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
362 					dis_val);
363 }
364 
365 static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev)
366 {
367 	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
368 	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
369 	int ret, id = rdev_get_id(rdev);
370 	unsigned int val;
371 
372 	mc13xxx_lock(priv->mc13xxx);
373 	ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val);
374 	mc13xxx_unlock(priv->mc13xxx);
375 
376 	if (ret)
377 		return ret;
378 
379 	/* Power Gates state is stored in powermisc_pwgt_state
380 	 * where the meaning of bits is negated */
381 	val = (val & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
382 	      (priv->powermisc_pwgt_state ^ MC13783_REG_POWERMISC_PWGTSPI_M);
383 
384 	return (val & mc13xxx_regulators[id].enable_bit) != 0;
385 }
386 
387 static struct regulator_ops mc13783_gpo_regulator_ops = {
388 	.enable = mc13783_gpo_regulator_enable,
389 	.disable = mc13783_gpo_regulator_disable,
390 	.is_enabled = mc13783_gpo_regulator_is_enabled,
391 	.list_voltage = regulator_list_voltage_table,
392 	.set_voltage = mc13xxx_fixed_regulator_set_voltage,
393 };
394 
395 static int mc13783_regulator_probe(struct platform_device *pdev)
396 {
397 	struct mc13xxx_regulator_priv *priv;
398 	struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
399 	struct mc13xxx_regulator_platform_data *pdata =
400 		dev_get_platdata(&pdev->dev);
401 	struct mc13xxx_regulator_init_data *mc13xxx_data;
402 	struct regulator_config config = { };
403 	int i, num_regulators;
404 
405 	num_regulators = mc13xxx_get_num_regulators_dt(pdev);
406 
407 	if (num_regulators <= 0 && pdata)
408 		num_regulators = pdata->num_regulators;
409 	if (num_regulators <= 0)
410 		return -EINVAL;
411 
412 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
413 			num_regulators * sizeof(priv->regulators[0]),
414 			GFP_KERNEL);
415 	if (!priv)
416 		return -ENOMEM;
417 
418 	priv->num_regulators = num_regulators;
419 	priv->mc13xxx_regulators = mc13783_regulators;
420 	priv->mc13xxx = mc13783;
421 	platform_set_drvdata(pdev, priv);
422 
423 	mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13783_regulators,
424 					ARRAY_SIZE(mc13783_regulators));
425 
426 	for (i = 0; i < priv->num_regulators; i++) {
427 		struct regulator_init_data *init_data;
428 		struct regulator_desc *desc;
429 		struct device_node *node = NULL;
430 		int id;
431 
432 		if (mc13xxx_data) {
433 			id = mc13xxx_data[i].id;
434 			init_data = mc13xxx_data[i].init_data;
435 			node = mc13xxx_data[i].node;
436 		} else {
437 			id = pdata->regulators[i].id;
438 			init_data = pdata->regulators[i].init_data;
439 		}
440 		desc = &mc13783_regulators[id].desc;
441 
442 		config.dev = &pdev->dev;
443 		config.init_data = init_data;
444 		config.driver_data = priv;
445 		config.of_node = node;
446 
447 		priv->regulators[i] = devm_regulator_register(&pdev->dev, desc,
448 							      &config);
449 		if (IS_ERR(priv->regulators[i])) {
450 			dev_err(&pdev->dev, "failed to register regulator %s\n",
451 				mc13783_regulators[i].desc.name);
452 			return PTR_ERR(priv->regulators[i]);
453 		}
454 	}
455 
456 	return 0;
457 }
458 
459 static struct platform_driver mc13783_regulator_driver = {
460 	.driver	= {
461 		.name	= "mc13783-regulator",
462 		.owner	= THIS_MODULE,
463 	},
464 	.probe		= mc13783_regulator_probe,
465 };
466 
467 static int __init mc13783_regulator_init(void)
468 {
469 	return platform_driver_register(&mc13783_regulator_driver);
470 }
471 subsys_initcall(mc13783_regulator_init);
472 
473 static void __exit mc13783_regulator_exit(void)
474 {
475 	platform_driver_unregister(&mc13783_regulator_driver);
476 }
477 module_exit(mc13783_regulator_exit);
478 
479 MODULE_LICENSE("GPL v2");
480 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
481 MODULE_DESCRIPTION("Regulator Driver for Freescale MC13783 PMIC");
482 MODULE_ALIAS("platform:mc13783-regulator");
483