2 * Regulator Driver for Freescale MC13892 PMIC
4 * Copyright 2010 Yong Shen <yong.shen@linaro.org>
6 * Based on draft driver from Arnaud Patard <arnaud.patard@rtp-net.org>
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.
13 #include <linux/mfd/mc13892.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>
24 #define MC13892_REVISION 7
26 #define MC13892_POWERCTL0 13
27 #define MC13892_POWERCTL0_USEROFFSPI 3
28 #define MC13892_POWERCTL0_VCOINCELLVSEL 20
29 #define MC13892_POWERCTL0_VCOINCELLVSEL_M (7<<20)
30 #define MC13892_POWERCTL0_VCOINCELLEN (1<<23)
32 #define MC13892_SWITCHERS0_SWxHI (1<<23)
34 #define MC13892_SWITCHERS0 24
35 #define MC13892_SWITCHERS0_SW1VSEL 0
36 #define MC13892_SWITCHERS0_SW1VSEL_M (0x1f<<0)
37 #define MC13892_SWITCHERS0_SW1HI (1<<23)
38 #define MC13892_SWITCHERS0_SW1EN 0
40 #define MC13892_SWITCHERS1 25
41 #define MC13892_SWITCHERS1_SW2VSEL 0
42 #define MC13892_SWITCHERS1_SW2VSEL_M (0x1f<<0)
43 #define MC13892_SWITCHERS1_SW2HI (1<<23)
44 #define MC13892_SWITCHERS1_SW2EN 0
46 #define MC13892_SWITCHERS2 26
47 #define MC13892_SWITCHERS2_SW3VSEL 0
48 #define MC13892_SWITCHERS2_SW3VSEL_M (0x1f<<0)
49 #define MC13892_SWITCHERS2_SW3HI (1<<23)
50 #define MC13892_SWITCHERS2_SW3EN 0
52 #define MC13892_SWITCHERS3 27
53 #define MC13892_SWITCHERS3_SW4VSEL 0
54 #define MC13892_SWITCHERS3_SW4VSEL_M (0x1f<<0)
55 #define MC13892_SWITCHERS3_SW4HI (1<<23)
56 #define MC13892_SWITCHERS3_SW4EN 0
58 #define MC13892_SWITCHERS4 28
59 #define MC13892_SWITCHERS4_SW1MODE 0
60 #define MC13892_SWITCHERS4_SW1MODE_AUTO (8<<0)
61 #define MC13892_SWITCHERS4_SW1MODE_M (0xf<<0)
62 #define MC13892_SWITCHERS4_SW2MODE 10
63 #define MC13892_SWITCHERS4_SW2MODE_AUTO (8<<10)
64 #define MC13892_SWITCHERS4_SW2MODE_M (0xf<<10)
66 #define MC13892_SWITCHERS5 29
67 #define MC13892_SWITCHERS5_SW3MODE 0
68 #define MC13892_SWITCHERS5_SW3MODE_AUTO (8<<0)
69 #define MC13892_SWITCHERS5_SW3MODE_M (0xf<<0)
70 #define MC13892_SWITCHERS5_SW4MODE 8
71 #define MC13892_SWITCHERS5_SW4MODE_AUTO (8<<8)
72 #define MC13892_SWITCHERS5_SW4MODE_M (0xf<<8)
73 #define MC13892_SWITCHERS5_SWBSTEN (1<<20)
75 #define MC13892_REGULATORSETTING0 30
76 #define MC13892_REGULATORSETTING0_VGEN1VSEL 0
77 #define MC13892_REGULATORSETTING0_VDIGVSEL 4
78 #define MC13892_REGULATORSETTING0_VGEN2VSEL 6
79 #define MC13892_REGULATORSETTING0_VPLLVSEL 9
80 #define MC13892_REGULATORSETTING0_VUSB2VSEL 11
81 #define MC13892_REGULATORSETTING0_VGEN3VSEL 14
82 #define MC13892_REGULATORSETTING0_VCAMVSEL 16
84 #define MC13892_REGULATORSETTING0_VGEN1VSEL_M (3<<0)
85 #define MC13892_REGULATORSETTING0_VDIGVSEL_M (3<<4)
86 #define MC13892_REGULATORSETTING0_VGEN2VSEL_M (7<<6)
87 #define MC13892_REGULATORSETTING0_VPLLVSEL_M (3<<9)
88 #define MC13892_REGULATORSETTING0_VUSB2VSEL_M (3<<11)
89 #define MC13892_REGULATORSETTING0_VGEN3VSEL_M (1<<14)
90 #define MC13892_REGULATORSETTING0_VCAMVSEL_M (3<<16)
92 #define MC13892_REGULATORSETTING1 31
93 #define MC13892_REGULATORSETTING1_VVIDEOVSEL 2
94 #define MC13892_REGULATORSETTING1_VAUDIOVSEL 4
95 #define MC13892_REGULATORSETTING1_VSDVSEL 6
97 #define MC13892_REGULATORSETTING1_VVIDEOVSEL_M (3<<2)
98 #define MC13892_REGULATORSETTING1_VAUDIOVSEL_M (3<<4)
99 #define MC13892_REGULATORSETTING1_VSDVSEL_M (7<<6)
101 #define MC13892_REGULATORMODE0 32
102 #define MC13892_REGULATORMODE0_VGEN1EN (1<<0)
103 #define MC13892_REGULATORMODE0_VGEN1STDBY (1<<1)
104 #define MC13892_REGULATORMODE0_VGEN1MODE (1<<2)
105 #define MC13892_REGULATORMODE0_VIOHIEN (1<<3)
106 #define MC13892_REGULATORMODE0_VIOHISTDBY (1<<4)
107 #define MC13892_REGULATORMODE0_VIOHIMODE (1<<5)
108 #define MC13892_REGULATORMODE0_VDIGEN (1<<9)
109 #define MC13892_REGULATORMODE0_VDIGSTDBY (1<<10)
110 #define MC13892_REGULATORMODE0_VDIGMODE (1<<11)
111 #define MC13892_REGULATORMODE0_VGEN2EN (1<<12)
112 #define MC13892_REGULATORMODE0_VGEN2STDBY (1<<13)
113 #define MC13892_REGULATORMODE0_VGEN2MODE (1<<14)
114 #define MC13892_REGULATORMODE0_VPLLEN (1<<15)
115 #define MC13892_REGULATORMODE0_VPLLSTDBY (1<<16)
116 #define MC13892_REGULATORMODE0_VPLLMODE (1<<17)
117 #define MC13892_REGULATORMODE0_VUSB2EN (1<<18)
118 #define MC13892_REGULATORMODE0_VUSB2STDBY (1<<19)
119 #define MC13892_REGULATORMODE0_VUSB2MODE (1<<20)
121 #define MC13892_REGULATORMODE1 33
122 #define MC13892_REGULATORMODE1_VGEN3EN (1<<0)
123 #define MC13892_REGULATORMODE1_VGEN3STDBY (1<<1)
124 #define MC13892_REGULATORMODE1_VGEN3MODE (1<<2)
125 #define MC13892_REGULATORMODE1_VCAMEN (1<<6)
126 #define MC13892_REGULATORMODE1_VCAMSTDBY (1<<7)
127 #define MC13892_REGULATORMODE1_VCAMMODE (1<<8)
128 #define MC13892_REGULATORMODE1_VCAMCONFIGEN (1<<9)
129 #define MC13892_REGULATORMODE1_VVIDEOEN (1<<12)
130 #define MC13892_REGULATORMODE1_VVIDEOSTDBY (1<<13)
131 #define MC13892_REGULATORMODE1_VVIDEOMODE (1<<14)
132 #define MC13892_REGULATORMODE1_VAUDIOEN (1<<15)
133 #define MC13892_REGULATORMODE1_VAUDIOSTDBY (1<<16)
134 #define MC13892_REGULATORMODE1_VAUDIOMODE (1<<17)
135 #define MC13892_REGULATORMODE1_VSDEN (1<<18)
136 #define MC13892_REGULATORMODE1_VSDSTDBY (1<<19)
137 #define MC13892_REGULATORMODE1_VSDMODE (1<<20)
139 #define MC13892_POWERMISC 34
140 #define MC13892_POWERMISC_GPO1EN (1<<6)
141 #define MC13892_POWERMISC_GPO2EN (1<<8)
142 #define MC13892_POWERMISC_GPO3EN (1<<10)
143 #define MC13892_POWERMISC_GPO4EN (1<<12)
144 #define MC13892_POWERMISC_PWGT1SPIEN (1<<15)
145 #define MC13892_POWERMISC_PWGT2SPIEN (1<<16)
146 #define MC13892_POWERMISC_GPO4ADINEN (1<<21)
148 #define MC13892_POWERMISC_PWGTSPI_M (3 << 15)
150 #define MC13892_USB1 50
151 #define MC13892_USB1_VUSBEN (1<<3)
153 static const int mc13892_vcoincell[] = {
154 2500000, 2700000, 2800000, 2900000, 3000000, 3100000,
158 static const int mc13892_sw1[] = {
159 600000, 625000, 650000, 675000, 700000, 725000,
160 750000, 775000, 800000, 825000, 850000, 875000,
161 900000, 925000, 950000, 975000, 1000000, 1025000,
162 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
163 1200000, 1225000, 1250000, 1275000, 1300000, 1325000,
167 static const int mc13892_sw[] = {
168 600000, 625000, 650000, 675000, 700000, 725000,
169 750000, 775000, 800000, 825000, 850000, 875000,
170 900000, 925000, 950000, 975000, 1000000, 1025000,
171 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
172 1200000, 1225000, 1250000, 1275000, 1300000, 1325000,
173 1350000, 1375000, 1400000, 1425000, 1450000, 1475000,
174 1500000, 1525000, 1550000, 1575000, 1600000, 1625000,
175 1650000, 1675000, 1700000, 1725000, 1750000, 1775000,
176 1800000, 1825000, 1850000, 1875000
179 static const int mc13892_swbst[] = {
183 static const int mc13892_viohi[] = {
187 static const int mc13892_vpll[] = {
188 1050000, 1250000, 1650000, 1800000,
191 static const int mc13892_vdig[] = {
192 1050000, 1250000, 1650000, 1800000,
195 static const int mc13892_vsd[] = {
196 1800000, 2000000, 2600000, 2700000,
197 2800000, 2900000, 3000000, 3150000,
200 static const int mc13892_vusb2[] = {
201 2400000, 2600000, 2700000, 2775000,
204 static const int mc13892_vvideo[] = {
205 2700000, 2775000, 2500000, 2600000,
208 static const int mc13892_vaudio[] = {
209 2300000, 2500000, 2775000, 3000000,
212 static const int mc13892_vcam[] = {
213 2500000, 2600000, 2750000, 3000000,
216 static const int mc13892_vgen1[] = {
217 1200000, 1500000, 2775000, 3150000,
220 static const int mc13892_vgen2[] = {
221 1200000, 1500000, 1600000, 1800000,
222 2700000, 2800000, 3000000, 3150000,
225 static const int mc13892_vgen3[] = {
229 static const int mc13892_vusb[] = {
233 static const int mc13892_gpo[] = {
237 static const int mc13892_pwgtdrv[] = {
241 static struct regulator_ops mc13892_gpo_regulator_ops;
242 /* sw regulators need special care due to the "hi bit" */
243 static struct regulator_ops mc13892_sw_regulator_ops;
246 #define MC13892_FIXED_DEFINE(name, reg, voltages) \
247 MC13xxx_FIXED_DEFINE(MC13892_, name, reg, voltages, \
248 mc13xxx_fixed_regulator_ops)
250 #define MC13892_GPO_DEFINE(name, reg, voltages) \
251 MC13xxx_GPO_DEFINE(MC13892_, name, reg, voltages, \
252 mc13892_gpo_regulator_ops)
254 #define MC13892_SW_DEFINE(name, reg, vsel_reg, voltages) \
255 MC13xxx_DEFINE(MC13892_, name, reg, vsel_reg, voltages, \
256 mc13892_sw_regulator_ops)
258 #define MC13892_DEFINE_REGU(name, reg, vsel_reg, voltages) \
259 MC13xxx_DEFINE(MC13892_, name, reg, vsel_reg, voltages, \
260 mc13xxx_regulator_ops)
262 static struct mc13xxx_regulator mc13892_regulators[] = {
263 MC13892_DEFINE_REGU(VCOINCELL, POWERCTL0, POWERCTL0, mc13892_vcoincell),
264 MC13892_SW_DEFINE(SW1, SWITCHERS0, SWITCHERS0, mc13892_sw1),
265 MC13892_SW_DEFINE(SW2, SWITCHERS1, SWITCHERS1, mc13892_sw),
266 MC13892_SW_DEFINE(SW3, SWITCHERS2, SWITCHERS2, mc13892_sw),
267 MC13892_SW_DEFINE(SW4, SWITCHERS3, SWITCHERS3, mc13892_sw),
268 MC13892_FIXED_DEFINE(SWBST, SWITCHERS5, mc13892_swbst),
269 MC13892_FIXED_DEFINE(VIOHI, REGULATORMODE0, mc13892_viohi),
270 MC13892_DEFINE_REGU(VPLL, REGULATORMODE0, REGULATORSETTING0, \
272 MC13892_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0, \
274 MC13892_DEFINE_REGU(VSD, REGULATORMODE1, REGULATORSETTING1, \
276 MC13892_DEFINE_REGU(VUSB2, REGULATORMODE0, REGULATORSETTING0, \
278 MC13892_DEFINE_REGU(VVIDEO, REGULATORMODE1, REGULATORSETTING1, \
280 MC13892_DEFINE_REGU(VAUDIO, REGULATORMODE1, REGULATORSETTING1, \
282 MC13892_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0, \
284 MC13892_DEFINE_REGU(VGEN1, REGULATORMODE0, REGULATORSETTING0, \
286 MC13892_DEFINE_REGU(VGEN2, REGULATORMODE0, REGULATORSETTING0, \
288 MC13892_DEFINE_REGU(VGEN3, REGULATORMODE1, REGULATORSETTING0, \
290 MC13892_FIXED_DEFINE(VUSB, USB1, mc13892_vusb),
291 MC13892_GPO_DEFINE(GPO1, POWERMISC, mc13892_gpo),
292 MC13892_GPO_DEFINE(GPO2, POWERMISC, mc13892_gpo),
293 MC13892_GPO_DEFINE(GPO3, POWERMISC, mc13892_gpo),
294 MC13892_GPO_DEFINE(GPO4, POWERMISC, mc13892_gpo),
295 MC13892_GPO_DEFINE(PWGT1SPI, POWERMISC, mc13892_pwgtdrv),
296 MC13892_GPO_DEFINE(PWGT2SPI, POWERMISC, mc13892_pwgtdrv),
299 static int mc13892_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
302 struct mc13xxx *mc13892 = priv->mc13xxx;
308 ret = mc13xxx_reg_read(mc13892, MC13892_POWERMISC, &valread);
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 &= MC13892_POWERMISC_PWGTSPI_M;
317 /* Construct the new register value */
318 valread = (valread & ~mask) | val;
319 /* Overwrite the PWGTxEN with the stored version */
320 valread = (valread & ~MC13892_POWERMISC_PWGTSPI_M) |
321 priv->powermisc_pwgt_state;
323 return mc13xxx_reg_write(mc13892, MC13892_POWERMISC, valread);
326 static int mc13892_gpo_regulator_enable(struct regulator_dev *rdev)
328 struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
329 int id = rdev_get_id(rdev);
331 u32 en_val = mc13892_regulators[id].enable_bit;
332 u32 mask = mc13892_regulators[id].enable_bit;
334 dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
336 /* Power Gate enable value is 0 */
337 if (id == MC13892_PWGT1SPI || id == MC13892_PWGT2SPI)
340 if (id == MC13892_GPO4)
341 mask |= MC13892_POWERMISC_GPO4ADINEN;
343 mc13xxx_lock(priv->mc13xxx);
344 ret = mc13892_powermisc_rmw(priv, mask, en_val);
345 mc13xxx_unlock(priv->mc13xxx);
350 static int mc13892_gpo_regulator_disable(struct regulator_dev *rdev)
352 struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
353 int id = rdev_get_id(rdev);
357 dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
359 /* Power Gate disable value is 1 */
360 if (id == MC13892_PWGT1SPI || id == MC13892_PWGT2SPI)
361 dis_val = mc13892_regulators[id].enable_bit;
363 mc13xxx_lock(priv->mc13xxx);
364 ret = mc13892_powermisc_rmw(priv, mc13892_regulators[id].enable_bit,
366 mc13xxx_unlock(priv->mc13xxx);
371 static int mc13892_gpo_regulator_is_enabled(struct regulator_dev *rdev)
373 struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
374 int ret, id = rdev_get_id(rdev);
377 mc13xxx_lock(priv->mc13xxx);
378 ret = mc13xxx_reg_read(priv->mc13xxx, mc13892_regulators[id].reg, &val);
379 mc13xxx_unlock(priv->mc13xxx);
384 /* Power Gates state is stored in powermisc_pwgt_state
385 * where the meaning of bits is negated */
386 val = (val & ~MC13892_POWERMISC_PWGTSPI_M) |
387 (priv->powermisc_pwgt_state ^ MC13892_POWERMISC_PWGTSPI_M);
389 return (val & mc13892_regulators[id].enable_bit) != 0;
393 static struct regulator_ops mc13892_gpo_regulator_ops = {
394 .enable = mc13892_gpo_regulator_enable,
395 .disable = mc13892_gpo_regulator_disable,
396 .is_enabled = mc13892_gpo_regulator_is_enabled,
397 .list_voltage = mc13xxx_regulator_list_voltage,
398 .set_voltage = mc13xxx_fixed_regulator_set_voltage,
399 .get_voltage = mc13xxx_fixed_regulator_get_voltage,
402 static int mc13892_sw_regulator_get_voltage(struct regulator_dev *rdev)
404 struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
405 int ret, id = rdev_get_id(rdev);
406 unsigned int val, hi;
408 dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
410 mc13xxx_lock(priv->mc13xxx);
411 ret = mc13xxx_reg_read(priv->mc13xxx,
412 mc13892_regulators[id].vsel_reg, &val);
413 mc13xxx_unlock(priv->mc13xxx);
417 hi = val & MC13892_SWITCHERS0_SWxHI;
418 val = (val & mc13892_regulators[id].vsel_mask)
419 >> mc13892_regulators[id].vsel_shift;
421 dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
424 val = (25000 * val) + 1100000;
426 val = (25000 * val) + 600000;
431 static int mc13892_sw_regulator_set_voltage(struct regulator_dev *rdev,
432 int min_uV, int max_uV, unsigned *selector)
434 struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
435 int hi, value, mask, id = rdev_get_id(rdev);
439 dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
440 __func__, id, min_uV, max_uV);
442 /* Find the best index */
443 value = mc13xxx_get_best_voltage_index(rdev, min_uV, max_uV);
444 dev_dbg(rdev_get_dev(rdev), "%s best value: %d\n", __func__, value);
448 value = mc13892_regulators[id].voltages[value];
450 mc13xxx_lock(priv->mc13xxx);
451 ret = mc13xxx_reg_read(priv->mc13xxx,
452 mc13892_regulators[id].vsel_reg, &valread);
458 else if (value < 1100000)
461 hi = valread & MC13892_SWITCHERS0_SWxHI;
464 value = (value - 1100000) / 25000;
465 value |= MC13892_SWITCHERS0_SWxHI;
467 value = (value - 600000) / 25000;
469 mask = mc13892_regulators[id].vsel_mask | MC13892_SWITCHERS0_SWxHI;
470 valread = (valread & ~mask) |
471 (value << mc13892_regulators[id].vsel_shift);
472 ret = mc13xxx_reg_write(priv->mc13xxx, mc13892_regulators[id].vsel_reg,
475 mc13xxx_unlock(priv->mc13xxx);
480 static struct regulator_ops mc13892_sw_regulator_ops = {
481 .is_enabled = mc13xxx_sw_regulator_is_enabled,
482 .list_voltage = mc13xxx_regulator_list_voltage,
483 .set_voltage = mc13892_sw_regulator_set_voltage,
484 .get_voltage = mc13892_sw_regulator_get_voltage,
487 static int mc13892_vcam_set_mode(struct regulator_dev *rdev, unsigned int mode)
489 unsigned int en_val = 0;
490 struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
491 int ret, id = rdev_get_id(rdev);
493 if (mode == REGULATOR_MODE_FAST)
494 en_val = MC13892_REGULATORMODE1_VCAMCONFIGEN;
496 mc13xxx_lock(priv->mc13xxx);
497 ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13892_regulators[id].reg,
498 MC13892_REGULATORMODE1_VCAMCONFIGEN, en_val);
499 mc13xxx_unlock(priv->mc13xxx);
504 static unsigned int mc13892_vcam_get_mode(struct regulator_dev *rdev)
506 struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
507 int ret, id = rdev_get_id(rdev);
510 mc13xxx_lock(priv->mc13xxx);
511 ret = mc13xxx_reg_read(priv->mc13xxx, mc13892_regulators[id].reg, &val);
512 mc13xxx_unlock(priv->mc13xxx);
517 if (val & MC13892_REGULATORMODE1_VCAMCONFIGEN)
518 return REGULATOR_MODE_FAST;
520 return REGULATOR_MODE_NORMAL;
524 static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
526 struct mc13xxx_regulator_priv *priv;
527 struct mc13xxx *mc13892 = dev_get_drvdata(pdev->dev.parent);
528 struct mc13xxx_regulator_platform_data *pdata =
529 dev_get_platdata(&pdev->dev);
530 struct mc13xxx_regulator_init_data *init_data;
534 priv = kzalloc(sizeof(*priv) +
535 pdata->num_regulators * sizeof(priv->regulators[0]),
540 priv->mc13xxx_regulators = mc13892_regulators;
541 priv->mc13xxx = mc13892;
543 mc13xxx_lock(mc13892);
544 ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val);
548 /* enable switch auto mode */
549 if ((val & 0x0000FFFF) == 0x45d0) {
550 ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS4,
551 MC13892_SWITCHERS4_SW1MODE_M |
552 MC13892_SWITCHERS4_SW2MODE_M,
553 MC13892_SWITCHERS4_SW1MODE_AUTO |
554 MC13892_SWITCHERS4_SW2MODE_AUTO);
558 ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS5,
559 MC13892_SWITCHERS5_SW3MODE_M |
560 MC13892_SWITCHERS5_SW4MODE_M,
561 MC13892_SWITCHERS5_SW3MODE_AUTO |
562 MC13892_SWITCHERS5_SW4MODE_AUTO);
566 mc13xxx_unlock(mc13892);
568 mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
569 = mc13892_vcam_set_mode;
570 mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
571 = mc13892_vcam_get_mode;
572 for (i = 0; i < pdata->num_regulators; i++) {
573 init_data = &pdata->regulators[i];
574 priv->regulators[i] = regulator_register(
575 &mc13892_regulators[init_data->id].desc,
576 &pdev->dev, init_data->init_data, priv);
578 if (IS_ERR(priv->regulators[i])) {
579 dev_err(&pdev->dev, "failed to register regulator %s\n",
580 mc13892_regulators[i].desc.name);
581 ret = PTR_ERR(priv->regulators[i]);
586 platform_set_drvdata(pdev, priv);
591 regulator_unregister(priv->regulators[i]);
594 mc13xxx_unlock(mc13892);
600 static int __devexit mc13892_regulator_remove(struct platform_device *pdev)
602 struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
603 struct mc13xxx_regulator_platform_data *pdata =
604 dev_get_platdata(&pdev->dev);
607 platform_set_drvdata(pdev, NULL);
609 for (i = 0; i < pdata->num_regulators; i++)
610 regulator_unregister(priv->regulators[i]);
616 static struct platform_driver mc13892_regulator_driver = {
618 .name = "mc13892-regulator",
619 .owner = THIS_MODULE,
621 .remove = __devexit_p(mc13892_regulator_remove),
622 .probe = mc13892_regulator_probe,
625 static int __init mc13892_regulator_init(void)
627 return platform_driver_register(&mc13892_regulator_driver);
629 subsys_initcall(mc13892_regulator_init);
631 static void __exit mc13892_regulator_exit(void)
633 platform_driver_unregister(&mc13892_regulator_driver);
635 module_exit(mc13892_regulator_exit);
637 MODULE_LICENSE("GPL v2");
638 MODULE_AUTHOR("Yong Shen <yong.shen@linaro.org>");
639 MODULE_DESCRIPTION("Regulator Driver for Freescale MC13892 PMIC");
640 MODULE_ALIAS("platform:mc13892-regulator");