drivers: power: report battery voltage in AOSP compatible format
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / regulator / mc13783-regulator.c
CommitLineData
295c08bc
SH
1/*
2 * Regulator Driver for Freescale MC13783 PMIC
3 *
167e3d8a 4 * Copyright 2010 Yong Shen <yong.shen@linaro.org>
295c08bc 5 * Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
1bd588fd 6 * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
295c08bc
SH
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
a10099bc 13#include <linux/mfd/mc13783.h>
295c08bc
SH
14#include <linux/regulator/machine.h>
15#include <linux/regulator/driver.h>
16#include <linux/platform_device.h>
295c08bc 17#include <linux/kernel.h>
5a0e3ad6 18#include <linux/slab.h>
295c08bc
SH
19#include <linux/init.h>
20#include <linux/err.h>
65602c32 21#include <linux/module.h>
167e3d8a 22#include "mc13xxx.h"
295c08bc 23
ba02dfd2
GC
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
a10099bc
UKK
48#define MC13783_REG_SWITCHERS5 29
49#define MC13783_REG_SWITCHERS5_SW3EN (1 << 20)
1bd588fd
AP
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)
a10099bc
UKK
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)
f4b97b36
AP
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
a10099bc 118
1bd588fd 119/* Voltage Values */
ba02dfd2
GC
120static 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
139static 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
34e74f39 158static const unsigned int mc13783_sw3_val[] = {
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AP
159 5000000, 5000000, 5000000, 5500000,
160};
161
34e74f39 162static const unsigned int mc13783_vaudio_val[] = {
1bd588fd
AP
163 2775000,
164};
165
34e74f39 166static const unsigned int mc13783_viohi_val[] = {
1bd588fd
AP
167 2775000,
168};
169
34e74f39 170static const unsigned int mc13783_violo_val[] = {
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AP
171 1200000, 1300000, 1500000, 1800000,
172};
173
34e74f39 174static const unsigned int mc13783_vdig_val[] = {
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AP
175 1200000, 1300000, 1500000, 1800000,
176};
177
34e74f39 178static const unsigned int mc13783_vgen_val[] = {
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AP
179 1200000, 1300000, 1500000, 1800000,
180 1100000, 2000000, 2775000, 2400000,
181};
182
34e74f39 183static const unsigned int mc13783_vrfdig_val[] = {
1bd588fd
AP
184 1200000, 1500000, 1800000, 1875000,
185};
186
34e74f39 187static const unsigned int mc13783_vrfref_val[] = {
1bd588fd
AP
188 2475000, 2600000, 2700000, 2775000,
189};
190
34e74f39 191static const unsigned int mc13783_vrfcp_val[] = {
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AP
192 2700000, 2775000,
193};
194
34e74f39 195static const unsigned int mc13783_vsim_val[] = {
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AP
196 1800000, 2900000, 3000000,
197};
198
34e74f39 199static const unsigned int mc13783_vesim_val[] = {
1bd588fd
AP
200 1800000, 2900000,
201};
202
34e74f39 203static const unsigned int mc13783_vcam_val[] = {
1bd588fd
AP
204 1500000, 1800000, 2500000, 2550000,
205 2600000, 2750000, 2800000, 3000000,
206};
207
34e74f39 208static const unsigned int mc13783_vrfbg_val[] = {
1bd588fd
AP
209 1250000,
210};
211
34e74f39 212static const unsigned int mc13783_vvib_val[] = {
1bd588fd
AP
213 1300000, 1800000, 2000000, 3000000,
214};
215
34e74f39 216static const unsigned int mc13783_vmmc_val[] = {
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AP
217 1600000, 1800000, 2000000, 2600000,
218 2700000, 2800000, 2900000, 3000000,
219};
220
34e74f39 221static const unsigned int mc13783_vrf_val[] = {
1bd588fd 222 1500000, 1875000, 2700000, 2775000,
295c08bc
SH
223};
224
34e74f39 225static const unsigned int mc13783_gpo_val[] = {
f4b97b36
AP
226 3100000,
227};
228
34e74f39 229static const unsigned int mc13783_pwgtdrv_val[] = {
f4b97b36
AP
230 5500000,
231};
232
f4b97b36 233static struct regulator_ops mc13783_gpo_regulator_ops;
1bd588fd 234
167e3d8a
YS
235#define MC13783_DEFINE(prefix, name, reg, vsel_reg, voltages) \
236 MC13xxx_DEFINE(MC13783_REG_, name, reg, vsel_reg, voltages, \
237 mc13xxx_regulator_ops)
295c08bc 238
167e3d8a
YS
239#define MC13783_FIXED_DEFINE(prefix, name, reg, voltages) \
240 MC13xxx_FIXED_DEFINE(MC13783_REG_, name, reg, voltages, \
241 mc13xxx_fixed_regulator_ops)
1bd588fd 242
167e3d8a
YS
243#define MC13783_GPO_DEFINE(prefix, name, reg, voltages) \
244 MC13xxx_GPO_DEFINE(MC13783_REG_, name, reg, voltages, \
245 mc13783_gpo_regulator_ops)
a10099bc 246
1bd588fd 247#define MC13783_DEFINE_SW(_name, _reg, _vsel_reg, _voltages) \
57c78e35 248 MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
1bd588fd 249#define MC13783_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages) \
57c78e35 250 MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
a10099bc 251
167e3d8a 252static struct mc13xxx_regulator mc13783_regulators[] = {
ba02dfd2
GC
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),
1bd588fd
AP
257 MC13783_DEFINE_SW(SW3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val),
258
57c78e35
YS
259 MC13783_FIXED_DEFINE(REG, VAUDIO, REGULATORMODE0, mc13783_vaudio_val),
260 MC13783_FIXED_DEFINE(REG, VIOHI, REGULATORMODE0, mc13783_viohi_val),
1bd588fd
AP
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),
57c78e35 279 MC13783_FIXED_DEFINE(REG, VRFBG, REGULATORMODE1, mc13783_vrfbg_val),
1bd588fd
AP
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),
57c78e35
YS
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),
295c08bc
SH
296};
297
167e3d8a
YS
298static int mc13783_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
299 u32 val)
f4b97b36 300{
167e3d8a 301 struct mc13xxx *mc13783 = priv->mc13xxx;
f4b97b36
AP
302 int ret;
303 u32 valread;
304
305 BUG_ON(val & ~mask);
306
2a2c3ac0 307 mc13xxx_lock(priv->mc13xxx);
167e3d8a 308 ret = mc13xxx_reg_read(mc13783, MC13783_REG_POWERMISC, &valread);
f4b97b36 309 if (ret)
2a2c3ac0 310 goto out;
f4b97b36
AP
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
2a2c3ac0
AL
323 ret = mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
324out:
325 mc13xxx_unlock(priv->mc13xxx);
326 return ret;
f4b97b36
AP
327}
328
329static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
330{
167e3d8a
YS
331 struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
332 struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
f4b97b36 333 int id = rdev_get_id(rdev);
167e3d8a 334 u32 en_val = mc13xxx_regulators[id].enable_bit;
f4b97b36
AP
335
336 dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
337
338 /* Power Gate enable value is 0 */
57c78e35
YS
339 if (id == MC13783_REG_PWGT1SPI ||
340 id == MC13783_REG_PWGT2SPI)
f4b97b36
AP
341 en_val = 0;
342
2a2c3ac0 343 return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
f4b97b36 344 en_val);
f4b97b36
AP
345}
346
347static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
348{
167e3d8a
YS
349 struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
350 struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
f4b97b36 351 int id = rdev_get_id(rdev);
f4b97b36
AP
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 */
57c78e35
YS
357 if (id == MC13783_REG_PWGT1SPI ||
358 id == MC13783_REG_PWGT2SPI)
167e3d8a 359 dis_val = mc13xxx_regulators[id].enable_bit;
f4b97b36 360
2a2c3ac0 361 return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
f4b97b36 362 dis_val);
f4b97b36
AP
363}
364
365static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev)
366{
167e3d8a
YS
367 struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
368 struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
f4b97b36
AP
369 int ret, id = rdev_get_id(rdev);
370 unsigned int val;
371
167e3d8a
YS
372 mc13xxx_lock(priv->mc13xxx);
373 ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val);
374 mc13xxx_unlock(priv->mc13xxx);
f4b97b36
AP
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
167e3d8a 384 return (val & mc13xxx_regulators[id].enable_bit) != 0;
f4b97b36
AP
385}
386
387static 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,
34e74f39 391 .list_voltage = regulator_list_voltage_table,
167e3d8a 392 .set_voltage = mc13xxx_fixed_regulator_set_voltage,
f4b97b36
AP
393};
394
a5023574 395static int mc13783_regulator_probe(struct platform_device *pdev)
295c08bc 396{
167e3d8a
YS
397 struct mc13xxx_regulator_priv *priv;
398 struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
8f1585aa 399 struct mc13xxx_regulator_platform_data *pdata =
c8a03c96 400 dev_get_platdata(&pdev->dev);
86b139f0 401 struct mc13xxx_regulator_init_data *mc13xxx_data;
a9d58010 402 struct regulator_config config = { };
86b139f0 403 int i, ret, num_regulators;
295c08bc 404
86b139f0 405 num_regulators = mc13xxx_get_num_regulators_dt(pdev);
295c08bc 406
86b139f0
AS
407 if (num_regulators <= 0 && pdata)
408 num_regulators = pdata->num_regulators;
409 if (num_regulators <= 0)
0757b602
SH
410 return -EINVAL;
411
cbe10a36 412 priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
86b139f0 413 num_regulators * sizeof(priv->regulators[0]),
295c08bc
SH
414 GFP_KERNEL);
415 if (!priv)
416 return -ENOMEM;
417
86b139f0 418 priv->num_regulators = num_regulators;
167e3d8a
YS
419 priv->mc13xxx_regulators = mc13783_regulators;
420 priv->mc13xxx = mc13783;
86b139f0 421 platform_set_drvdata(pdev, priv);
295c08bc 422
86b139f0
AS
423 mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13783_regulators,
424 ARRAY_SIZE(mc13783_regulators));
a9d58010 425
86b139f0
AS
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;
a9d58010
AL
441
442 config.dev = &pdev->dev;
86b139f0 443 config.init_data = init_data;
a9d58010 444 config.driver_data = priv;
86b139f0 445 config.of_node = node;
295c08bc 446
a9d58010 447 priv->regulators[i] = regulator_register(desc, &config);
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448 if (IS_ERR(priv->regulators[i])) {
449 dev_err(&pdev->dev, "failed to register regulator %s\n",
450 mc13783_regulators[i].desc.name);
451 ret = PTR_ERR(priv->regulators[i]);
452 goto err;
453 }
454 }
455
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456 return 0;
457err:
458 while (--i >= 0)
459 regulator_unregister(priv->regulators[i]);
460
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461 return ret;
462}
463
8dc995f5 464static int mc13783_regulator_remove(struct platform_device *pdev)
295c08bc 465{
167e3d8a 466 struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
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467 int i;
468
58d57658
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469 platform_set_drvdata(pdev, NULL);
470
86b139f0 471 for (i = 0; i < priv->num_regulators; i++)
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472 regulator_unregister(priv->regulators[i]);
473
474 return 0;
475}
476
477static struct platform_driver mc13783_regulator_driver = {
478 .driver = {
479 .name = "mc13783-regulator",
480 .owner = THIS_MODULE,
481 },
5eb9f2b9 482 .remove = mc13783_regulator_remove,
735eb93a 483 .probe = mc13783_regulator_probe,
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484};
485
486static int __init mc13783_regulator_init(void)
487{
735eb93a 488 return platform_driver_register(&mc13783_regulator_driver);
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489}
490subsys_initcall(mc13783_regulator_init);
491
492static void __exit mc13783_regulator_exit(void)
493{
494 platform_driver_unregister(&mc13783_regulator_driver);
495}
496module_exit(mc13783_regulator_exit);
497
a10099bc 498MODULE_LICENSE("GPL v2");
1dcc434b 499MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
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500MODULE_DESCRIPTION("Regulator Driver for Freescale MC13783 PMIC");
501MODULE_ALIAS("platform:mc13783-regulator");