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-rw-r--r--drivers/regulator/Kconfig34
-rw-r--r--drivers/regulator/Makefile5
-rw-r--r--drivers/regulator/ab8500.c427
-rw-r--r--drivers/regulator/ad5398.c288
-rw-r--r--drivers/regulator/isl6271a-regulator.c236
-rw-r--r--drivers/regulator/lp3971.c10
-rw-r--r--drivers/regulator/max1586.c10
-rw-r--r--drivers/regulator/max8660.c10
-rw-r--r--drivers/regulator/max8998.c635
-rw-r--r--drivers/regulator/tps65023-regulator.c2
-rw-r--r--drivers/regulator/tps6507x-regulator.c1
-rw-r--r--drivers/regulator/tps6586x-regulator.c396
-rw-r--r--drivers/regulator/wm8994-regulator.c5
13 files changed, 2038 insertions, 21 deletions
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 04f2e085116..172951bf23a 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -100,6 +100,14 @@ config REGULATOR_MAX8925
100 help 100 help
101 Say y here to support the voltage regulaltor of Maxim MAX8925 PMIC. 101 Say y here to support the voltage regulaltor of Maxim MAX8925 PMIC.
102 102
103config REGULATOR_MAX8998
104 tristate "Maxim 8998 voltage regulator"
105 depends on MFD_MAX8998
106 help
107 This driver controls a Maxim 8998 voltage output regulator
108 via I2C bus. The provided regulator is suitable for S3C6410
109 and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages.
110
103config REGULATOR_TWL4030 111config REGULATOR_TWL4030
104 bool "TI TWL4030/TWL5030/TWL6030/TPS695x0 PMIC" 112 bool "TI TWL4030/TWL5030/TWL6030/TPS695x0 PMIC"
105 depends on TWL4030_CORE 113 depends on TWL4030_CORE
@@ -201,5 +209,31 @@ config REGULATOR_88PM8607
201 help 209 help
202 This driver supports 88PM8607 voltage regulator chips. 210 This driver supports 88PM8607 voltage regulator chips.
203 211
212config REGULATOR_ISL6271A
213 tristate "Intersil ISL6271A Power regulator"
214 depends on I2C
215 help
216 This driver supports ISL6271A voltage regulator chip.
217
218config REGULATOR_AD5398
219 tristate "Analog Devices AD5398/AD5821 regulators"
220 depends on I2C
221 help
222 This driver supports AD5398 and AD5821 current regulator chips.
223 If building into module, its name is ad5398.ko.
224
225config REGULATOR_AB8500
226 bool "ST-Ericsson AB8500 Power Regulators"
227 depends on AB8500_CORE
228 help
229 This driver supports the regulators found on the ST-Ericsson mixed
230 signal AB8500 PMIC
231
232config REGULATOR_TPS6586X
233 tristate "TI TPS6586X Power regulators"
234 depends on MFD_TPS6586X
235 help
236 This driver supports TPS6586X voltage regulator chips.
237
204endif 238endif
205 239
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 4e7feece22d..8285fd832e1 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o
8obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o 8obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
9obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o 9obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o
10 10
11obj-$(CONFIG_REGULATOR_AD5398) += ad5398.o
11obj-$(CONFIG_REGULATOR_BQ24022) += bq24022.o 12obj-$(CONFIG_REGULATOR_BQ24022) += bq24022.o
12obj-$(CONFIG_REGULATOR_DUMMY) += dummy.o 13obj-$(CONFIG_REGULATOR_DUMMY) += dummy.o
13obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o 14obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o
@@ -16,12 +17,14 @@ obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o
16obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o 17obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o
17obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o 18obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o
18obj-$(CONFIG_REGULATOR_MAX8925) += max8925-regulator.o 19obj-$(CONFIG_REGULATOR_MAX8925) += max8925-regulator.o
20obj-$(CONFIG_REGULATOR_MAX8998) += max8998.o
19obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o 21obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o
20obj-$(CONFIG_REGULATOR_WM831X) += wm831x-isink.o 22obj-$(CONFIG_REGULATOR_WM831X) += wm831x-isink.o
21obj-$(CONFIG_REGULATOR_WM831X) += wm831x-ldo.o 23obj-$(CONFIG_REGULATOR_WM831X) += wm831x-ldo.o
22obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o 24obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o
23obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o 25obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o
24obj-$(CONFIG_REGULATOR_WM8994) += wm8994-regulator.o 26obj-$(CONFIG_REGULATOR_WM8994) += wm8994-regulator.o
27obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
25obj-$(CONFIG_REGULATOR_DA903X) += da903x.o 28obj-$(CONFIG_REGULATOR_DA903X) += da903x.o
26obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o 29obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
27obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o 30obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o
@@ -31,5 +34,7 @@ obj-$(CONFIG_REGULATOR_AB3100) += ab3100.o
31obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o 34obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o
32obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o 35obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o
33obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o 36obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o
37obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o
38obj-$(CONFIG_REGULATOR_AB8500) += ab8500.o
34 39
35ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG 40ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
new file mode 100644
index 00000000000..dc3f1a49167
--- /dev/null
+++ b/drivers/regulator/ab8500.c
@@ -0,0 +1,427 @@
1/*
2 * Copyright (C) ST-Ericsson SA 2010
3 *
4 * License Terms: GNU General Public License v2
5 *
6 * Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
7 *
8 * AB8500 peripheral regulators
9 *
10 * AB8500 supports the following regulators,
11 * LDOs - VAUDIO, VANAMIC2/2, VDIGMIC, VINTCORE12, VTVOUT,
12 * VAUX1/2/3, VANA
13 *
14 * for DB8500 cut 1.0 and previous versions of the silicon, all accesses
15 * to registers are through the DB8500 SPI. In cut 1.1 onwards, these
16 * accesses are through the DB8500 PRCMU I2C
17 *
18 */
19#include <linux/init.h>
20#include <linux/kernel.h>
21#include <linux/err.h>
22#include <linux/platform_device.h>
23#include <linux/mfd/ab8500.h>
24#include <linux/regulator/driver.h>
25#include <linux/regulator/machine.h>
26#include <linux/regulator/ab8500.h>
27
28/**
29 * struct ab8500_regulator_info - ab8500 regulator information
30 * @desc: regulator description
31 * @ab8500: ab8500 parent
32 * @regulator_dev: regulator device
33 * @max_uV: maximum voltage (for variable voltage supplies)
34 * @min_uV: minimum voltage (for variable voltage supplies)
35 * @fixed_uV: typical voltage (for fixed voltage supplies)
36 * @update_reg: register to control on/off
37 * @mask: mask to enable/disable regulator
38 * @enable: bits to enable the regulator in normal(high power) mode
39 * @voltage_reg: register to control regulator voltage
40 * @voltage_mask: mask to control regulator voltage
41 * @supported_voltages: supported voltage table
42 * @voltages_len: number of supported voltages for the regulator
43 */
44struct ab8500_regulator_info {
45 struct device *dev;
46 struct regulator_desc desc;
47 struct ab8500 *ab8500;
48 struct regulator_dev *regulator;
49 int max_uV;
50 int min_uV;
51 int fixed_uV;
52 int update_reg;
53 int mask;
54 int enable;
55 int voltage_reg;
56 int voltage_mask;
57 int const *supported_voltages;
58 int voltages_len;
59};
60
61/* voltage tables for the vauxn/vintcore supplies */
62static const int ldo_vauxn_voltages[] = {
63 1100000,
64 1200000,
65 1300000,
66 1400000,
67 1500000,
68 1800000,
69 1850000,
70 1900000,
71 2500000,
72 2650000,
73 2700000,
74 2750000,
75 2800000,
76 2900000,
77 3000000,
78 3300000,
79};
80
81static const int ldo_vintcore_voltages[] = {
82 1200000,
83 1225000,
84 1250000,
85 1275000,
86 1300000,
87 1325000,
88 1350000,
89};
90
91static int ab8500_regulator_enable(struct regulator_dev *rdev)
92{
93 int regulator_id, ret;
94 struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
95
96 regulator_id = rdev_get_id(rdev);
97 if (regulator_id >= AB8500_NUM_REGULATORS)
98 return -EINVAL;
99
100 ret = ab8500_set_bits(info->ab8500, info->update_reg,
101 info->mask, info->enable);
102 if (ret < 0)
103 dev_err(rdev_get_dev(rdev),
104 "couldn't set enable bits for regulator\n");
105 return ret;
106}
107
108static int ab8500_regulator_disable(struct regulator_dev *rdev)
109{
110 int regulator_id, ret;
111 struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
112
113 regulator_id = rdev_get_id(rdev);
114 if (regulator_id >= AB8500_NUM_REGULATORS)
115 return -EINVAL;
116
117 ret = ab8500_set_bits(info->ab8500, info->update_reg,
118 info->mask, 0x0);
119 if (ret < 0)
120 dev_err(rdev_get_dev(rdev),
121 "couldn't set disable bits for regulator\n");
122 return ret;
123}
124
125static int ab8500_regulator_is_enabled(struct regulator_dev *rdev)
126{
127 int regulator_id, ret;
128 struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
129
130 regulator_id = rdev_get_id(rdev);
131 if (regulator_id >= AB8500_NUM_REGULATORS)
132 return -EINVAL;
133
134 ret = ab8500_read(info->ab8500, info->update_reg);
135 if (ret < 0) {
136 dev_err(rdev_get_dev(rdev),
137 "couldn't read 0x%x register\n", info->update_reg);
138 return ret;
139 }
140
141 if (ret & info->mask)
142 return true;
143 else
144 return false;
145}
146
147static int ab8500_list_voltage(struct regulator_dev *rdev, unsigned selector)
148{
149 int regulator_id;
150 struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
151
152 regulator_id = rdev_get_id(rdev);
153 if (regulator_id >= AB8500_NUM_REGULATORS)
154 return -EINVAL;
155
156 /* return the uV for the fixed regulators */
157 if (info->fixed_uV)
158 return info->fixed_uV;
159
160 if (selector > info->voltages_len)
161 return -EINVAL;
162
163 return info->supported_voltages[selector];
164}
165
166static int ab8500_regulator_get_voltage(struct regulator_dev *rdev)
167{
168 int regulator_id, ret, val;
169 struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
170
171 regulator_id = rdev_get_id(rdev);
172 if (regulator_id >= AB8500_NUM_REGULATORS)
173 return -EINVAL;
174
175 ret = ab8500_read(info->ab8500, info->voltage_reg);
176 if (ret < 0) {
177 dev_err(rdev_get_dev(rdev),
178 "couldn't read voltage reg for regulator\n");
179 return ret;
180 }
181
182 /* vintcore has a different layout */
183 val = ret & info->voltage_mask;
184 if (regulator_id == AB8500_LDO_INTCORE)
185 ret = info->supported_voltages[val >> 0x3];
186 else
187 ret = info->supported_voltages[val];
188
189 return ret;
190}
191
192static int ab8500_get_best_voltage_index(struct regulator_dev *rdev,
193 int min_uV, int max_uV)
194{
195 struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
196 int i;
197
198 /* check the supported voltage */
199 for (i = 0; i < info->voltages_len; i++) {
200 if ((info->supported_voltages[i] >= min_uV) &&
201 (info->supported_voltages[i] <= max_uV))
202 return i;
203 }
204
205 return -EINVAL;
206}
207
208static int ab8500_regulator_set_voltage(struct regulator_dev *rdev,
209 int min_uV, int max_uV)
210{
211 int regulator_id, ret;
212 struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
213
214 regulator_id = rdev_get_id(rdev);
215 if (regulator_id >= AB8500_NUM_REGULATORS)
216 return -EINVAL;
217
218 /* get the appropriate voltages within the range */
219 ret = ab8500_get_best_voltage_index(rdev, min_uV, max_uV);
220 if (ret < 0) {
221 dev_err(rdev_get_dev(rdev),
222 "couldn't get best voltage for regulator\n");
223 return ret;
224 }
225
226 /* set the registers for the request */
227 ret = ab8500_set_bits(info->ab8500, info->voltage_reg,
228 info->voltage_mask, ret);
229 if (ret < 0)
230 dev_err(rdev_get_dev(rdev),
231 "couldn't set voltage reg for regulator\n");
232
233 return ret;
234}
235
236static struct regulator_ops ab8500_regulator_ops = {
237 .enable = ab8500_regulator_enable,
238 .disable = ab8500_regulator_disable,
239 .is_enabled = ab8500_regulator_is_enabled,
240 .get_voltage = ab8500_regulator_get_voltage,
241 .set_voltage = ab8500_regulator_set_voltage,
242 .list_voltage = ab8500_list_voltage,
243};
244
245static int ab8500_fixed_get_voltage(struct regulator_dev *rdev)
246{
247 int regulator_id;
248 struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
249
250 regulator_id = rdev_get_id(rdev);
251 if (regulator_id >= AB8500_NUM_REGULATORS)
252 return -EINVAL;
253
254 return info->fixed_uV;
255}
256
257static struct regulator_ops ab8500_ldo_fixed_ops = {
258 .enable = ab8500_regulator_enable,
259 .disable = ab8500_regulator_disable,
260 .is_enabled = ab8500_regulator_is_enabled,
261 .get_voltage = ab8500_fixed_get_voltage,
262 .list_voltage = ab8500_list_voltage,
263};
264
265#define AB8500_LDO(_id, min, max, reg, reg_mask, reg_enable, \
266 volt_reg, volt_mask, voltages, \
267 len_volts) \
268{ \
269 .desc = { \
270 .name = "LDO-" #_id, \
271 .ops = &ab8500_regulator_ops, \
272 .type = REGULATOR_VOLTAGE, \
273 .id = AB8500_LDO_##_id, \
274 .owner = THIS_MODULE, \
275 }, \
276 .min_uV = (min) * 1000, \
277 .max_uV = (max) * 1000, \
278 .update_reg = reg, \
279 .mask = reg_mask, \
280 .enable = reg_enable, \
281 .voltage_reg = volt_reg, \
282 .voltage_mask = volt_mask, \
283 .supported_voltages = voltages, \
284 .voltages_len = len_volts, \
285 .fixed_uV = 0, \
286}
287
288#define AB8500_FIXED_LDO(_id, fixed, reg, reg_mask, \
289 reg_enable) \
290{ \
291 .desc = { \
292 .name = "LDO-" #_id, \
293 .ops = &ab8500_ldo_fixed_ops, \
294 .type = REGULATOR_VOLTAGE, \
295 .id = AB8500_LDO_##_id, \
296 .owner = THIS_MODULE, \
297 }, \
298 .fixed_uV = fixed * 1000, \
299 .update_reg = reg, \
300 .mask = reg_mask, \
301 .enable = reg_enable, \
302}
303
304static struct ab8500_regulator_info ab8500_regulator_info[] = {
305 /*
306 * Variable Voltage LDOs
307 * name, min uV, max uV, ctrl reg, reg mask, enable mask,
308 * volt ctrl reg, volt ctrl mask, volt table, num supported volts
309 */
310 AB8500_LDO(AUX1, 1100, 3300, 0x0409, 0x3, 0x1, 0x041f, 0xf,
311 ldo_vauxn_voltages, ARRAY_SIZE(ldo_vauxn_voltages)),
312 AB8500_LDO(AUX2, 1100, 3300, 0x0409, 0xc, 0x4, 0x0420, 0xf,
313 ldo_vauxn_voltages, ARRAY_SIZE(ldo_vauxn_voltages)),
314 AB8500_LDO(AUX3, 1100, 3300, 0x040a, 0x3, 0x1, 0x0421, 0xf,
315 ldo_vauxn_voltages, ARRAY_SIZE(ldo_vauxn_voltages)),
316 AB8500_LDO(INTCORE, 1100, 3300, 0x0380, 0x4, 0x4, 0x0380, 0x38,
317 ldo_vintcore_voltages, ARRAY_SIZE(ldo_vintcore_voltages)),
318
319 /*
320 * Fixed Voltage LDOs
321 * name, o/p uV, ctrl reg, enable, disable
322 */
323 AB8500_FIXED_LDO(TVOUT, 2000, 0x0380, 0x2, 0x2),
324 AB8500_FIXED_LDO(AUDIO, 2000, 0x0383, 0x2, 0x2),
325 AB8500_FIXED_LDO(ANAMIC1, 2050, 0x0383, 0x4, 0x4),
326 AB8500_FIXED_LDO(ANAMIC2, 2050, 0x0383, 0x8, 0x8),
327 AB8500_FIXED_LDO(DMIC, 1800, 0x0383, 0x10, 0x10),
328 AB8500_FIXED_LDO(ANA, 1200, 0x0383, 0xc, 0x4),
329};
330
331static inline struct ab8500_regulator_info *find_regulator_info(int id)
332{
333 struct ab8500_regulator_info *info;
334 int i;
335
336 for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
337 info = &ab8500_regulator_info[i];
338 if (info->desc.id == id)
339 return info;
340 }
341 return NULL;
342}
343
344static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
345{
346 struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
347 struct ab8500_platform_data *pdata = dev_get_platdata(ab8500->dev);
348 int i, err;
349
350 if (!ab8500) {
351 dev_err(&pdev->dev, "null mfd parent\n");
352 return -EINVAL;
353 }
354
355 /* register all regulators */
356 for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
357 struct ab8500_regulator_info *info = NULL;
358
359 /* assign per-regulator data */
360 info = &ab8500_regulator_info[i];
361 info->dev = &pdev->dev;
362 info->ab8500 = ab8500;
363
364 info->regulator = regulator_register(&info->desc, &pdev->dev,
365 pdata->regulator[i], info);
366 if (IS_ERR(info->regulator)) {
367 err = PTR_ERR(info->regulator);
368 dev_err(&pdev->dev, "failed to register regulator %s\n",
369 info->desc.name);
370 /* when we fail, un-register all earlier regulators */
371 i--;
372 while (i > 0) {
373 info = &ab8500_regulator_info[i];
374 regulator_unregister(info->regulator);
375 i--;
376 }
377 return err;
378 }
379 }
380
381 return 0;
382}
383
384static __devexit int ab8500_regulator_remove(struct platform_device *pdev)
385{
386 int i;
387
388 for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
389 struct ab8500_regulator_info *info = NULL;
390 info = &ab8500_regulator_info[i];
391 regulator_unregister(info->regulator);
392 }
393
394 return 0;
395}
396
397static struct platform_driver ab8500_regulator_driver = {
398 .probe = ab8500_regulator_probe,
399 .remove = __devexit_p(ab8500_regulator_remove),
400 .driver = {
401 .name = "ab8500-regulator",
402 .owner = THIS_MODULE,
403 },
404};
405
406static int __init ab8500_regulator_init(void)
407{
408 int ret;
409
410 ret = platform_driver_register(&ab8500_regulator_driver);
411 if (ret != 0)
412 pr_err("Failed to register ab8500 regulator: %d\n", ret);
413
414 return ret;
415}
416subsys_initcall(ab8500_regulator_init);
417
418static void __exit ab8500_regulator_exit(void)
419{
420 platform_driver_unregister(&ab8500_regulator_driver);
421}
422module_exit(ab8500_regulator_exit);
423
424MODULE_LICENSE("GPL v2");
425MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
426MODULE_DESCRIPTION("Regulator Driver for ST-Ericsson AB8500 Mixed-Sig PMIC");
427MODULE_ALIAS("platform:ab8500-regulator");
diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c
new file mode 100644
index 00000000000..d59d2f2314a
--- /dev/null
+++ b/drivers/regulator/ad5398.c
@@ -0,0 +1,288 @@
1/*
2 * Voltage and current regulation for AD5398 and AD5821
3 *
4 * Copyright 2010 Analog Devices Inc.
5 *
6 * Enter bugs at http://blackfin.uclinux.org/
7 *
8 * Licensed under the GPL-2 or later.
9 */
10
11#include <linux/module.h>
12#include <linux/err.h>
13#include <linux/i2c.h>
14#include <linux/slab.h>
15#include <linux/platform_device.h>
16#include <linux/regulator/driver.h>
17#include <linux/regulator/machine.h>
18
19#define AD5398_CURRENT_EN_MASK 0x8000
20
21struct ad5398_chip_info {
22 struct i2c_client *client;
23 int min_uA;
24 int max_uA;
25 unsigned int current_level;
26 unsigned int current_mask;
27 unsigned int current_offset;
28 struct regulator_dev rdev;
29};
30
31static int ad5398_calc_current(struct ad5398_chip_info *chip,
32 unsigned selector)
33{
34 unsigned range_uA = chip->max_uA - chip->min_uA;
35
36 return chip->min_uA + (selector * range_uA / chip->current_level);
37}
38
39static int ad5398_read_reg(struct i2c_client *client, unsigned short *data)
40{
41 unsigned short val;
42 int ret;
43
44 ret = i2c_master_recv(client, (char *)&val, 2);
45 if (ret < 0) {
46 dev_err(&client->dev, "I2C read error\n");
47 return ret;
48 }
49 *data = be16_to_cpu(val);
50
51 return ret;
52}
53
54static int ad5398_write_reg(struct i2c_client *client, const unsigned short data)
55{
56 unsigned short val;
57 int ret;
58
59 val = cpu_to_be16(data);
60 ret = i2c_master_send(client, (char *)&val, 2);
61 if (ret < 0)
62 dev_err(&client->dev, "I2C write error\n");
63
64 return ret;
65}
66
67static int ad5398_get_current_limit(struct regulator_dev *rdev)
68{
69 struct ad5398_chip_info *chip = rdev_get_drvdata(rdev);
70 struct i2c_client *client = chip->client;
71 unsigned short data;
72 int ret;
73
74 ret = ad5398_read_reg(client, &data);
75 if (ret < 0)
76 return ret;
77
78 ret = (data & chip->current_mask) >> chip->current_offset;
79
80 return ad5398_calc_current(chip, ret);
81}
82
83static int ad5398_set_current_limit(struct regulator_dev *rdev, int min_uA, int max_uA)
84{
85 struct ad5398_chip_info *chip = rdev_get_drvdata(rdev);
86 struct i2c_client *client = chip->client;
87 unsigned range_uA = chip->max_uA - chip->min_uA;
88 unsigned selector;
89 unsigned short data;
90 int ret;
91
92 if (min_uA > chip->max_uA || min_uA < chip->min_uA)
93 return -EINVAL;
94 if (max_uA > chip->max_uA || max_uA < chip->min_uA)
95 return -EINVAL;
96
97 selector = ((min_uA - chip->min_uA) * chip->current_level +
98 range_uA - 1) / range_uA;
99 if (ad5398_calc_current(chip, selector) > max_uA)
100 return -EINVAL;
101
102 dev_dbg(&client->dev, "changing current %dmA\n",
103 ad5398_calc_current(chip, selector) / 1000);
104
105 /* read chip enable bit */
106 ret = ad5398_read_reg(client, &data);
107 if (ret < 0)
108 return ret;
109
110 /* prepare register data */
111 selector = (selector << chip->current_offset) & chip->current_mask;
112 data = (unsigned short)selector | (data & AD5398_CURRENT_EN_MASK);
113
114 /* write the new current value back as well as enable bit */
115 ret = ad5398_write_reg(client, data);
116
117 return ret;
118}
119
120static int ad5398_is_enabled(struct regulator_dev *rdev)
121{
122 struct ad5398_chip_info *chip = rdev_get_drvdata(rdev);
123 struct i2c_client *client = chip->client;
124 unsigned short data;
125 int ret;
126
127 ret = ad5398_read_reg(client, &data);
128 if (ret < 0)
129 return ret;
130
131 if (data & AD5398_CURRENT_EN_MASK)
132 return 1;
133 else
134 return 0;
135}
136
137static int ad5398_enable(struct regulator_dev *rdev)
138{
139 struct ad5398_chip_info *chip = rdev_get_drvdata(rdev);
140 struct i2c_client *client = chip->client;
141 unsigned short data;
142 int ret;
143
144 ret = ad5398_read_reg(client, &data);
145 if (ret < 0)
146 return ret;
147
148 if (data & AD5398_CURRENT_EN_MASK)
149 return 0;
150
151 data |= AD5398_CURRENT_EN_MASK;
152
153 ret = ad5398_write_reg(client, data);
154
155 return ret;
156}
157
158static int ad5398_disable(struct regulator_dev *rdev)
159{
160 struct ad5398_chip_info *chip = rdev_get_drvdata(rdev);
161 struct i2c_client *client = chip->client;
162 unsigned short data;
163 int ret;
164
165 ret = ad5398_read_reg(client, &data);
166 if (ret < 0)
167 return ret;
168
169 if (!(data & AD5398_CURRENT_EN_MASK))
170 return 0;
171
172 data &= ~AD5398_CURRENT_EN_MASK;
173
174 ret = ad5398_write_reg(client, data);
175
176 return ret;
177}
178
179static struct regulator_ops ad5398_ops = {
180 .get_current_limit = ad5398_get_current_limit,
181 .set_current_limit = ad5398_set_current_limit,
182 .enable = ad5398_enable,
183 .disable = ad5398_disable,
184 .is_enabled = ad5398_is_enabled,
185};
186
187static struct regulator_desc ad5398_reg = {
188 .name = "isink",
189 .id = 0,
190 .ops = &ad5398_ops,
191 .type = REGULATOR_CURRENT,
192 .owner = THIS_MODULE,
193};
194
195struct ad5398_current_data_format {
196 int current_bits;
197 int current_offset;
198 int min_uA;
199 int max_uA;
200};
201
202static const struct ad5398_current_data_format df_10_4_120 = {10, 4, 0, 120000};
203
204static const struct i2c_device_id ad5398_id[] = {
205 { "ad5398", (kernel_ulong_t)&df_10_4_120 },
206 { "ad5821", (kernel_ulong_t)&df_10_4_120 },
207 { }
208};
209MODULE_DEVICE_TABLE(i2c, ad5398_id);
210
211static int __devinit ad5398_probe(struct i2c_client *client,
212 const struct i2c_device_id *id)
213{
214 struct regulator_dev *rdev;
215 struct regulator_init_data *init_data = client->dev.platform_data;
216 struct ad5398_chip_info *chip;
217 const struct ad5398_current_data_format *df =
218 (struct ad5398_current_data_format *)id->driver_data;
219 int ret;
220
221 if (!init_data)
222 return -EINVAL;
223
224 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
225 if (!chip)
226 return -ENOMEM;
227
228 chip->client = client;
229
230 chip->min_uA = df->min_uA;
231 chip->max_uA = df->max_uA;
232 chip->current_level = 1 << df->current_bits;
233 chip->current_offset = df->current_offset;
234 chip->current_mask = (chip->current_level - 1) << chip->current_offset;
235
236 rdev = regulator_register(&ad5398_reg, &client->dev, init_data, chip);
237 if (IS_ERR(rdev)) {
238 ret = PTR_ERR(rdev);
239 dev_err(&client->dev, "failed to register %s %s\n",
240 id->name, ad5398_reg.name);
241 goto err;
242 }
243
244 i2c_set_clientdata(client, chip);
245 dev_dbg(&client->dev, "%s regulator driver is registered.\n", id->name);
246 return 0;
247
248err:
249 kfree(chip);
250 return ret;
251}
252
253static int __devexit ad5398_remove(struct i2c_client *client)
254{
255 struct ad5398_chip_info *chip = i2c_get_clientdata(client);
256
257 regulator_unregister(&chip->rdev);
258 kfree(chip);
259 i2c_set_clientdata(client, NULL);
260
261 return 0;
262}
263
264static struct i2c_driver ad5398_driver = {
265 .probe = ad5398_probe,
266 .remove = __devexit_p(ad5398_remove),
267 .driver = {
268 .name = "ad5398",
269 },
270 .id_table = ad5398_id,
271};
272
273static int __init ad5398_init(void)
274{
275 return i2c_add_driver(&ad5398_driver);
276}
277subsys_initcall(ad5398_init);
278
279static void __exit ad5398_exit(void)
280{
281 i2c_del_driver(&ad5398_driver);
282}
283module_exit(ad5398_exit);
284
285MODULE_DESCRIPTION("AD5398 and AD5821 current regulator driver");
286MODULE_AUTHOR("Sonic Zhang");
287MODULE_LICENSE("GPL");
288MODULE_ALIAS("i2c:ad5398-regulator");
diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c
new file mode 100644
index 00000000000..e49d2bd393f
--- /dev/null
+++ b/drivers/regulator/isl6271a-regulator.c
@@ -0,0 +1,236 @@
1/*
2 * isl6271a-regulator.c
3 *
4 * Support for Intersil ISL6271A voltage regulator
5 *
6 * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation version 2.
11 *
12 * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
13 * whether express or implied; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 */
17
18#include <linux/kernel.h>
19#include <linux/module.h>
20#include <linux/init.h>
21#include <linux/err.h>
22#include <linux/platform_device.h>
23#include <linux/regulator/driver.h>
24#include <linux/i2c.h>
25#include <linux/delay.h>
26#include <linux/slab.h>
27
28#define ISL6271A_VOLTAGE_MIN 850000
29#define ISL6271A_VOLTAGE_MAX 1600000
30#define ISL6271A_VOLTAGE_STEP 50000
31
32/* PMIC details */
33struct isl_pmic {
34 struct i2c_client *client;
35 struct regulator_dev *rdev[3];
36 struct mutex mtx;
37};
38
39static int isl6271a_get_voltage(struct regulator_dev *dev)
40{
41 struct isl_pmic *pmic = rdev_get_drvdata(dev);
42 int idx, data;
43
44 mutex_lock(&pmic->mtx);
45
46 idx = i2c_smbus_read_byte(pmic->client);
47 if (idx < 0) {
48 dev_err(&pmic->client->dev, "Error getting voltage\n");
49 data = idx;
50 goto out;
51 }
52
53 /* Convert the data from chip to microvolts */
54 data = ISL6271A_VOLTAGE_MIN + (ISL6271A_VOLTAGE_STEP * (idx & 0xf));
55
56out:
57 mutex_unlock(&pmic->mtx);
58 return data;
59}
60
61static int isl6271a_set_voltage(struct regulator_dev *dev, int minuV, int maxuV)
62{
63 struct isl_pmic *pmic = rdev_get_drvdata(dev);
64 int vsel, err, data;
65
66 if (minuV < ISL6271A_VOLTAGE_MIN || minuV > ISL6271A_VOLTAGE_MAX)
67 return -EINVAL;
68 if (maxuV < ISL6271A_VOLTAGE_MIN || maxuV > ISL6271A_VOLTAGE_MAX)
69 return -EINVAL;
70
71 /* Align to 50000 mV */
72 vsel = minuV - (minuV % ISL6271A_VOLTAGE_STEP);
73
74 /* If the result fell out of [minuV,maxuV] range, put it back */
75 if (vsel < minuV)
76 vsel += ISL6271A_VOLTAGE_STEP;
77
78 /* Convert the microvolts to data for the chip */
79 data = (vsel - ISL6271A_VOLTAGE_MIN) / ISL6271A_VOLTAGE_STEP;
80
81 mutex_lock(&pmic->mtx);
82
83 err = i2c_smbus_write_byte(pmic->client, data);
84 if (err < 0)
85 dev_err(&pmic->client->dev, "Error setting voltage\n");
86
87 mutex_unlock(&pmic->mtx);
88 return err;
89}
90
91static int isl6271a_list_voltage(struct regulator_dev *dev, unsigned selector)
92{
93 return ISL6271A_VOLTAGE_MIN + (ISL6271A_VOLTAGE_STEP * selector);
94}
95
96static struct regulator_ops isl_core_ops = {
97 .get_voltage = isl6271a_get_voltage,
98 .set_voltage = isl6271a_set_voltage,
99 .list_voltage = isl6271a_list_voltage,
100};
101
102static int isl6271a_get_fixed_voltage(struct regulator_dev *dev)
103{
104 int id = rdev_get_id(dev);
105 return (id == 1) ? 1100000 : 1300000;
106}
107
108static int isl6271a_list_fixed_voltage(struct regulator_dev *dev, unsigned selector)
109{
110 int id = rdev_get_id(dev);
111 return (id == 1) ? 1100000 : 1300000;
112}
113
114static struct regulator_ops isl_fixed_ops = {
115 .get_voltage = isl6271a_get_fixed_voltage,
116 .list_voltage = isl6271a_list_fixed_voltage,
117};
118
119static struct regulator_desc isl_rd[] = {
120 {
121 .name = "Core Buck",
122 .id = 0,
123 .n_voltages = 16,
124 .ops = &isl_core_ops,
125 .type = REGULATOR_VOLTAGE,
126 .owner = THIS_MODULE,
127 }, {
128 .name = "LDO1",
129 .id = 1,
130 .n_voltages = 1,
131 .ops = &isl_fixed_ops,
132 .type = REGULATOR_VOLTAGE,
133 .owner = THIS_MODULE,
134 }, {
135 .name = "LDO2",
136 .id = 2,
137 .n_voltages = 1,
138 .ops = &isl_fixed_ops,
139 .type = REGULATOR_VOLTAGE,
140 .owner = THIS_MODULE,
141 },
142};
143
144static int __devinit isl6271a_probe(struct i2c_client *i2c,
145 const struct i2c_device_id *id)
146{
147 struct regulator_init_data *init_data = i2c->dev.platform_data;
148 struct isl_pmic *pmic;
149 int err, i;
150
151 if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
152 return -EIO;
153
154 if (!init_data) {
155 dev_err(&i2c->dev, "no platform data supplied\n");
156 return -EIO;
157 }
158
159 pmic = kzalloc(sizeof(struct isl_pmic), GFP_KERNEL);
160 if (!pmic)
161 return -ENOMEM;
162
163 pmic->client = i2c;
164
165 mutex_init(&pmic->mtx);
166
167 for (i = 0; i < 3; i++) {
168 pmic->rdev[i] = regulator_register(&isl_rd[0], &i2c->dev,
169 init_data, pmic);
170 if (IS_ERR(pmic->rdev[i])) {
171 dev_err(&i2c->dev, "failed to register %s\n", id->name);
172 err = PTR_ERR(pmic->rdev);
173 goto error;
174 }
175 }
176
177 i2c_set_clientdata(i2c, pmic);
178
179 return 0;
180
181error:
182 while (--i >= 0)
183 regulator_unregister(pmic->rdev[i]);
184
185 kfree(pmic);
186 return err;
187}
188
189static int __devexit isl6271a_remove(struct i2c_client *i2c)
190{
191 struct isl_pmic *pmic = i2c_get_clientdata(i2c);
192 int i;
193
194 i2c_set_clientdata(i2c, NULL);
195
196 for (i = 0; i < 3; i++)
197 regulator_unregister(pmic->rdev[i]);
198
199 kfree(pmic);
200
201 return 0;
202}
203
204static const struct i2c_device_id isl6271a_id[] = {
205 {.name = "isl6271a", 0 },
206 { },
207};
208
209MODULE_DEVICE_TABLE(i2c, isl6271a_id);
210
211static struct i2c_driver isl6271a_i2c_driver = {
212 .driver = {
213 .name = "isl6271a",
214 .owner = THIS_MODULE,
215 },
216 .probe = isl6271a_probe,
217 .remove = __devexit_p(isl6271a_remove),
218 .id_table = isl6271a_id,
219};
220
221static int __init isl6271a_init(void)
222{
223 return i2c_add_driver(&isl6271a_i2c_driver);
224}
225
226static void __exit isl6271a_cleanup(void)
227{
228 i2c_del_driver(&isl6271a_i2c_driver);
229}
230
231subsys_initcall(isl6271a_init);
232module_exit(isl6271a_cleanup);
233
234MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
235MODULE_DESCRIPTION("Intersil ISL6271A voltage regulator driver");
236MODULE_LICENSE("GPL v2");
diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c
index 8ae3732eb24..3bb82b624e1 100644
--- a/drivers/regulator/lp3971.c
+++ b/drivers/regulator/lp3971.c
@@ -377,7 +377,7 @@ static int lp3971_i2c_read(struct i2c_client *i2c, char reg, int count,
377 if (count != 1) 377 if (count != 1)
378 return -EIO; 378 return -EIO;
379 ret = i2c_smbus_read_byte_data(i2c, reg); 379 ret = i2c_smbus_read_byte_data(i2c, reg);
380 if (ret < 0 || count != 1) 380 if (ret < 0)
381 return -EIO; 381 return -EIO;
382 382
383 *dest = ret; 383 *dest = ret;
@@ -387,15 +387,9 @@ static int lp3971_i2c_read(struct i2c_client *i2c, char reg, int count,
387static int lp3971_i2c_write(struct i2c_client *i2c, char reg, int count, 387static int lp3971_i2c_write(struct i2c_client *i2c, char reg, int count,
388 const u16 *src) 388 const u16 *src)
389{ 389{
390 int ret;
391
392 if (count != 1) 390 if (count != 1)
393 return -EIO; 391 return -EIO;
394 ret = i2c_smbus_write_byte_data(i2c, reg, *src); 392 return i2c_smbus_write_byte_data(i2c, reg, *src);
395 if (ret >= 0)
396 return 0;
397
398 return ret;
399} 393}
400 394
401static u8 lp3971_reg_read(struct lp3971 *lp3971, u8 reg) 395static u8 lp3971_reg_read(struct lp3971 *lp3971, u8 reg)
diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c
index 2b54d9d75f1..8867c2710a6 100644
--- a/drivers/regulator/max1586.c
+++ b/drivers/regulator/max1586.c
@@ -223,7 +223,7 @@ static int __devinit max1586_pmic_probe(struct i2c_client *client,
223 } 223 }
224 } 224 }
225 225
226 i2c_set_clientdata(client, rdev); 226 i2c_set_clientdata(client, max1586);
227 dev_info(&client->dev, "Maxim 1586 regulator driver loaded\n"); 227 dev_info(&client->dev, "Maxim 1586 regulator driver loaded\n");
228 return 0; 228 return 0;
229 229
@@ -238,13 +238,13 @@ out:
238 238
239static int __devexit max1586_pmic_remove(struct i2c_client *client) 239static int __devexit max1586_pmic_remove(struct i2c_client *client)
240{ 240{
241 struct regulator_dev **rdev = i2c_get_clientdata(client); 241 struct max1586_data *max1586 = i2c_get_clientdata(client);
242 int i; 242 int i;
243 243
244 for (i = 0; i <= MAX1586_V6; i++) 244 for (i = 0; i <= MAX1586_V6; i++)
245 if (rdev[i]) 245 if (max1586->rdev[i])
246 regulator_unregister(rdev[i]); 246 regulator_unregister(max1586->rdev[i]);
247 kfree(rdev); 247 kfree(max1586);
248 248
249 return 0; 249 return 0;
250} 250}
diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
index d97220efae5..c570e6eb0db 100644
--- a/drivers/regulator/max8660.c
+++ b/drivers/regulator/max8660.c
@@ -450,7 +450,7 @@ static int __devinit max8660_probe(struct i2c_client *client,
450 } 450 }
451 } 451 }
452 452
453 i2c_set_clientdata(client, rdev); 453 i2c_set_clientdata(client, max8660);
454 dev_info(&client->dev, "Maxim 8660/8661 regulator driver loaded\n"); 454 dev_info(&client->dev, "Maxim 8660/8661 regulator driver loaded\n");
455 return 0; 455 return 0;
456 456
@@ -465,13 +465,13 @@ out:
465 465
466static int __devexit max8660_remove(struct i2c_client *client) 466static int __devexit max8660_remove(struct i2c_client *client)
467{ 467{
468 struct regulator_dev **rdev = i2c_get_clientdata(client); 468 struct max8660 *max8660 = i2c_get_clientdata(client);
469 int i; 469 int i;
470 470
471 for (i = 0; i < MAX8660_V_END; i++) 471 for (i = 0; i < MAX8660_V_END; i++)
472 if (rdev[i]) 472 if (max8660->rdev[i])
473 regulator_unregister(rdev[i]); 473 regulator_unregister(max8660->rdev[i]);
474 kfree(rdev); 474 kfree(max8660);
475 475
476 return 0; 476 return 0;
477} 477}
diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c
new file mode 100644
index 00000000000..ab67298799f
--- /dev/null
+++ b/drivers/regulator/max8998.c
@@ -0,0 +1,635 @@
1/*
2 * max8998.c - Voltage regulator driver for the Maxim 8998
3 *
4 * Copyright (C) 2009-2010 Samsung Electronics
5 * Kyungmin Park <kyungmin.park@samsung.com>
6 * Marek Szyprowski <m.szyprowski@samsung.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 as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23#include <linux/module.h>
24#include <linux/init.h>
25#include <linux/i2c.h>
26#include <linux/err.h>
27#include <linux/gpio.h>
28#include <linux/slab.h>
29#include <linux/interrupt.h>
30#include <linux/mutex.h>
31#include <linux/delay.h>
32#include <linux/platform_device.h>
33#include <linux/regulator/driver.h>
34#include <linux/mfd/max8998.h>
35#include <linux/mfd/max8998-private.h>
36
37struct max8998_data {
38 struct device *dev;
39 struct max8998_dev *iodev;
40 int num_regulators;
41 struct regulator_dev **rdev;
42};
43
44struct voltage_map_desc {
45 int min;
46 int max;
47 int step;
48};
49
50/* Voltage maps */
51static const struct voltage_map_desc ldo23_voltage_map_desc = {
52 .min = 800, .step = 50, .max = 1300,
53};
54static const struct voltage_map_desc ldo456711_voltage_map_desc = {
55 .min = 1600, .step = 100, .max = 3600,
56};
57static const struct voltage_map_desc ldo8_voltage_map_desc = {
58 .min = 3000, .step = 100, .max = 3600,
59};
60static const struct voltage_map_desc ldo9_voltage_map_desc = {
61 .min = 2800, .step = 100, .max = 3100,
62};
63static const struct voltage_map_desc ldo10_voltage_map_desc = {
64 .min = 950, .step = 50, .max = 1300,
65};
66static const struct voltage_map_desc ldo1213_voltage_map_desc = {
67 .min = 800, .step = 100, .max = 3300,
68};
69static const struct voltage_map_desc ldo1415_voltage_map_desc = {
70 .min = 1200, .step = 100, .max = 3300,
71};
72static const struct voltage_map_desc ldo1617_voltage_map_desc = {
73 .min = 1600, .step = 100, .max = 3600,
74};
75static const struct voltage_map_desc buck12_voltage_map_desc = {
76 .min = 750, .step = 25, .max = 1525,
77};
78static const struct voltage_map_desc buck3_voltage_map_desc = {
79 .min = 1600, .step = 100, .max = 3600,
80};
81static const struct voltage_map_desc buck4_voltage_map_desc = {
82 .min = 800, .step = 100, .max = 2300,
83};
84
85static const struct voltage_map_desc *ldo_voltage_map[] = {
86 NULL,
87 NULL,
88 &ldo23_voltage_map_desc, /* LDO2 */
89 &ldo23_voltage_map_desc, /* LDO3 */
90 &ldo456711_voltage_map_desc, /* LDO4 */
91 &ldo456711_voltage_map_desc, /* LDO5 */
92 &ldo456711_voltage_map_desc, /* LDO6 */
93 &ldo456711_voltage_map_desc, /* LDO7 */
94 &ldo8_voltage_map_desc, /* LDO8 */
95 &ldo9_voltage_map_desc, /* LDO9 */
96 &ldo10_voltage_map_desc, /* LDO10 */
97 &ldo456711_voltage_map_desc, /* LDO11 */
98 &ldo1213_voltage_map_desc, /* LDO12 */
99 &ldo1213_voltage_map_desc, /* LDO13 */
100 &ldo1415_voltage_map_desc, /* LDO14 */
101 &ldo1415_voltage_map_desc, /* LDO15 */
102 &ldo1617_voltage_map_desc, /* LDO16 */
103 &ldo1617_voltage_map_desc, /* LDO17 */
104 &buck12_voltage_map_desc, /* BUCK1 */
105 &buck12_voltage_map_desc, /* BUCK2 */
106 &buck3_voltage_map_desc, /* BUCK3 */
107 &buck4_voltage_map_desc, /* BUCK4 */
108};
109
110static inline int max8998_get_ldo(struct regulator_dev *rdev)
111{
112 return rdev_get_id(rdev);
113}
114
115static int max8998_list_voltage(struct regulator_dev *rdev,
116 unsigned int selector)
117{
118 const struct voltage_map_desc *desc;
119 int ldo = max8998_get_ldo(rdev);
120 int val;
121
122 if (ldo >= ARRAY_SIZE(ldo_voltage_map))
123 return -EINVAL;
124
125 desc = ldo_voltage_map[ldo];
126 if (desc == NULL)
127 return -EINVAL;
128
129 val = desc->min + desc->step * selector;
130 if (val > desc->max)
131 return -EINVAL;
132
133 return val * 1000;
134}
135
136static int max8998_get_enable_register(struct regulator_dev *rdev,
137 int *reg, int *shift)
138{
139 int ldo = max8998_get_ldo(rdev);
140
141 switch (ldo) {
142 case MAX8998_LDO2 ... MAX8998_LDO5:
143 *reg = MAX8998_REG_ONOFF1;
144 *shift = 3 - (ldo - MAX8998_LDO2);
145 break;
146 case MAX8998_LDO6 ... MAX8998_LDO13:
147 *reg = MAX8998_REG_ONOFF2;
148 *shift = 7 - (ldo - MAX8998_LDO6);
149 break;
150 case MAX8998_LDO14 ... MAX8998_LDO17:
151 *reg = MAX8998_REG_ONOFF3;
152 *shift = 7 - (ldo - MAX8998_LDO14);
153 break;
154 case MAX8998_BUCK1 ... MAX8998_BUCK4:
155 *reg = MAX8998_REG_ONOFF1;
156 *shift = 7 - (ldo - MAX8998_BUCK1);
157 break;
158 case MAX8998_EN32KHZ_AP ... MAX8998_ENVICHG:
159 *reg = MAX8998_REG_ONOFF4;
160 *shift = 7 - (ldo - MAX8998_EN32KHZ_AP);
161 break;
162 case MAX8998_ESAFEOUT1 ... MAX8998_ESAFEOUT2:
163 *reg = MAX8998_REG_CHGR2;
164 *shift = 7 - (ldo - MAX8998_ESAFEOUT1);
165 break;
166 default:
167 return -EINVAL;
168 }
169
170 return 0;
171}
172
173static int max8998_ldo_is_enabled(struct regulator_dev *rdev)
174{
175 struct max8998_data *max8998 = rdev_get_drvdata(rdev);
176 int ret, reg, shift = 8;
177 u8 val;
178
179 ret = max8998_get_enable_register(rdev, &reg, &shift);
180 if (ret)
181 return ret;
182
183 ret = max8998_read_reg(max8998->iodev, reg, &val);
184 if (ret)
185 return ret;
186
187 return val & (1 << shift);
188}
189
190static int max8998_ldo_enable(struct regulator_dev *rdev)
191{
192 struct max8998_data *max8998 = rdev_get_drvdata(rdev);
193 int reg, shift = 8, ret;
194
195 ret = max8998_get_enable_register(rdev, &reg, &shift);
196 if (ret)
197 return ret;
198
199 return max8998_update_reg(max8998->iodev, reg, 1<<shift, 1<<shift);
200}
201
202static int max8998_ldo_disable(struct regulator_dev *rdev)
203{
204 struct max8998_data *max8998 = rdev_get_drvdata(rdev);
205 int reg, shift = 8, ret;
206
207 ret = max8998_get_enable_register(rdev, &reg, &shift);
208 if (ret)
209 return ret;
210
211 return max8998_update_reg(max8998->iodev, reg, 0, 1<<shift);
212}
213
214static int max8998_get_voltage_register(struct regulator_dev *rdev,
215 int *_reg, int *_shift, int *_mask)
216{
217 int ldo = max8998_get_ldo(rdev);
218 int reg, shift = 0, mask = 0xff;
219
220 switch (ldo) {
221 case MAX8998_LDO2 ... MAX8998_LDO3:
222 reg = MAX8998_REG_LDO2_LDO3;
223 mask = 0xf;
224 if (ldo == MAX8998_LDO2)
225 shift = 4;
226 else
227 shift = 0;
228 break;
229 case MAX8998_LDO4 ... MAX8998_LDO7:
230 reg = MAX8998_REG_LDO4 + (ldo - MAX8998_LDO4);
231 break;
232 case MAX8998_LDO8 ... MAX8998_LDO9:
233 reg = MAX8998_REG_LDO8_LDO9;
234 mask = 0xf;
235 if (ldo == MAX8998_LDO8)
236 shift = 4;
237 else
238 shift = 0;
239 break;
240 case MAX8998_LDO10 ... MAX8998_LDO11:
241 reg = MAX8998_REG_LDO10_LDO11;
242 if (ldo == MAX8998_LDO10) {
243 shift = 5;
244 mask = 0x7;
245 } else {
246 shift = 0;
247 mask = 0x1f;
248 }
249 break;
250 case MAX8998_LDO12 ... MAX8998_LDO17:
251 reg = MAX8998_REG_LDO12 + (ldo - MAX8998_LDO12);
252 break;
253 case MAX8998_BUCK1:
254 reg = MAX8998_REG_BUCK1_DVSARM1;
255 break;
256 case MAX8998_BUCK2:
257 reg = MAX8998_REG_BUCK2_DVSINT1;
258 break;
259 case MAX8998_BUCK3:
260 reg = MAX8998_REG_BUCK3;
261 break;
262 case MAX8998_BUCK4:
263 reg = MAX8998_REG_BUCK4;
264 break;
265 default:
266 return -EINVAL;
267 }
268
269 *_reg = reg;
270 *_shift = shift;
271 *_mask = mask;
272
273 return 0;
274}
275
276static int max8998_get_voltage(struct regulator_dev *rdev)
277{
278 struct max8998_data *max8998 = rdev_get_drvdata(rdev);
279 int reg, shift = 0, mask, ret;
280 u8 val;
281
282 ret = max8998_get_voltage_register(rdev, &reg, &shift, &mask);
283 if (ret)
284 return ret;
285
286 ret = max8998_read_reg(max8998->iodev, reg, &val);
287 if (ret)
288 return ret;
289
290 val >>= shift;
291 val &= mask;
292
293 return max8998_list_voltage(rdev, val);
294}
295
296static int max8998_set_voltage(struct regulator_dev *rdev,
297 int min_uV, int max_uV)
298{
299 struct max8998_data *max8998 = rdev_get_drvdata(rdev);
300 int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
301 int previous_vol = 0;
302 const struct voltage_map_desc *desc;
303 int ldo = max8998_get_ldo(rdev);
304 int reg, shift = 0, mask, ret;
305 int i = 0;
306 u8 val;
307 bool en_ramp = false;
308
309 if (ldo >= ARRAY_SIZE(ldo_voltage_map))
310 return -EINVAL;
311
312 desc = ldo_voltage_map[ldo];
313 if (desc == NULL)
314 return -EINVAL;
315
316 if (max_vol < desc->min || min_vol > desc->max)
317 return -EINVAL;
318
319 while (desc->min + desc->step*i < min_vol &&
320 desc->min + desc->step*i < desc->max)
321 i++;
322
323 if (desc->min + desc->step*i > max_vol)
324 return -EINVAL;
325
326 ret = max8998_get_voltage_register(rdev, &reg, &shift, &mask);
327 if (ret)
328 return ret;
329
330 /* wait for RAMP_UP_DELAY if rdev is BUCK1/2 and
331 * ENRAMP is ON */
332 if (ldo == MAX8998_BUCK1 || ldo == MAX8998_BUCK2) {
333 max8998_read_reg(max8998->iodev, MAX8998_REG_ONOFF4, &val);
334 if (val & (1 << 4)) {
335 en_ramp = true;
336 previous_vol = max8998_get_voltage(rdev);
337 }
338 }
339
340 ret = max8998_update_reg(max8998->iodev, reg, i<<shift, mask<<shift);
341
342 if (en_ramp == true) {
343 int difference = desc->min + desc->step*i - previous_vol/1000;
344 if (difference > 0)
345 udelay(difference / ((val & 0x0f) + 1));
346 }
347
348 return ret;
349}
350
351static struct regulator_ops max8998_ldo_ops = {
352 .list_voltage = max8998_list_voltage,
353 .is_enabled = max8998_ldo_is_enabled,
354 .enable = max8998_ldo_enable,
355 .disable = max8998_ldo_disable,
356 .get_voltage = max8998_get_voltage,
357 .set_voltage = max8998_set_voltage,
358 .set_suspend_enable = max8998_ldo_enable,
359 .set_suspend_disable = max8998_ldo_disable,
360};
361
362static struct regulator_ops max8998_buck_ops = {
363 .list_voltage = max8998_list_voltage,
364 .is_enabled = max8998_ldo_is_enabled,
365 .enable = max8998_ldo_enable,
366 .disable = max8998_ldo_disable,
367 .get_voltage = max8998_get_voltage,
368 .set_voltage = max8998_set_voltage,
369 .set_suspend_enable = max8998_ldo_enable,
370 .set_suspend_disable = max8998_ldo_disable,
371};
372
373static struct regulator_ops max8998_others_ops = {
374 .is_enabled = max8998_ldo_is_enabled,
375 .enable = max8998_ldo_enable,
376 .disable = max8998_ldo_disable,
377 .set_suspend_enable = max8998_ldo_enable,
378 .set_suspend_disable = max8998_ldo_disable,
379};
380
381static struct regulator_desc regulators[] = {
382 {
383 .name = "LDO2",
384 .id = MAX8998_LDO2,
385 .ops = &max8998_ldo_ops,
386 .type = REGULATOR_VOLTAGE,
387 .owner = THIS_MODULE,
388 }, {
389 .name = "LDO3",
390 .id = MAX8998_LDO3,
391 .ops = &max8998_ldo_ops,
392 .type = REGULATOR_VOLTAGE,
393 .owner = THIS_MODULE,
394 }, {
395 .name = "LDO4",
396 .id = MAX8998_LDO4,
397 .ops = &max8998_ldo_ops,
398 .type = REGULATOR_VOLTAGE,
399 .owner = THIS_MODULE,
400 }, {
401 .name = "LDO5",
402 .id = MAX8998_LDO5,
403 .ops = &max8998_ldo_ops,
404 .type = REGULATOR_VOLTAGE,
405 .owner = THIS_MODULE,
406 }, {
407 .name = "LDO6",
408 .id = MAX8998_LDO6,
409 .ops = &max8998_ldo_ops,
410 .type = REGULATOR_VOLTAGE,
411 .owner = THIS_MODULE,
412 }, {
413 .name = "LDO7",
414 .id = MAX8998_LDO7,
415 .ops = &max8998_ldo_ops,
416 .type = REGULATOR_VOLTAGE,
417 .owner = THIS_MODULE,
418 }, {
419 .name = "LDO8",
420 .id = MAX8998_LDO8,
421 .ops = &max8998_ldo_ops,
422 .type = REGULATOR_VOLTAGE,
423 .owner = THIS_MODULE,
424 }, {
425 .name = "LDO9",
426 .id = MAX8998_LDO9,
427 .ops = &max8998_ldo_ops,
428 .type = REGULATOR_VOLTAGE,
429 .owner = THIS_MODULE,
430 }, {
431 .name = "LDO10",
432 .id = MAX8998_LDO10,
433 .ops = &max8998_ldo_ops,
434 .type = REGULATOR_VOLTAGE,
435 .owner = THIS_MODULE,
436 }, {
437 .name = "LDO11",
438 .id = MAX8998_LDO11,
439 .ops = &max8998_ldo_ops,
440 .type = REGULATOR_VOLTAGE,
441 .owner = THIS_MODULE,
442 }, {
443 .name = "LDO12",
444 .id = MAX8998_LDO12,
445 .ops = &max8998_ldo_ops,
446 .type = REGULATOR_VOLTAGE,
447 .owner = THIS_MODULE,
448 }, {
449 .name = "LDO13",
450 .id = MAX8998_LDO13,
451 .ops = &max8998_ldo_ops,
452 .type = REGULATOR_VOLTAGE,
453 .owner = THIS_MODULE,
454 }, {
455 .name = "LDO14",
456 .id = MAX8998_LDO14,
457 .ops = &max8998_ldo_ops,
458 .type = REGULATOR_VOLTAGE,
459 .owner = THIS_MODULE,
460 }, {
461 .name = "LDO15",
462 .id = MAX8998_LDO15,
463 .ops = &max8998_ldo_ops,
464 .type = REGULATOR_VOLTAGE,
465 .owner = THIS_MODULE,
466 }, {
467 .name = "LDO16",
468 .id = MAX8998_LDO16,
469 .ops = &max8998_ldo_ops,
470 .type = REGULATOR_VOLTAGE,
471 .owner = THIS_MODULE,
472 }, {
473 .name = "LDO17",
474 .id = MAX8998_LDO17,
475 .ops = &max8998_ldo_ops,
476 .type = REGULATOR_VOLTAGE,
477 .owner = THIS_MODULE,
478 }, {
479 .name = "BUCK1",
480 .id = MAX8998_BUCK1,
481 .ops = &max8998_buck_ops,
482 .type = REGULATOR_VOLTAGE,
483 .owner = THIS_MODULE,
484 }, {
485 .name = "BUCK2",
486 .id = MAX8998_BUCK2,
487 .ops = &max8998_buck_ops,
488 .type = REGULATOR_VOLTAGE,
489 .owner = THIS_MODULE,
490 }, {
491 .name = "BUCK3",
492 .id = MAX8998_BUCK3,
493 .ops = &max8998_buck_ops,
494 .type = REGULATOR_VOLTAGE,
495 .owner = THIS_MODULE,
496 }, {
497 .name = "BUCK4",
498 .id = MAX8998_BUCK4,
499 .ops = &max8998_buck_ops,
500 .type = REGULATOR_VOLTAGE,
501 .owner = THIS_MODULE,
502 }, {
503 .name = "EN32KHz AP",
504 .id = MAX8998_EN32KHZ_AP,
505 .ops = &max8998_others_ops,
506 .type = REGULATOR_VOLTAGE,
507 .owner = THIS_MODULE,
508 }, {
509 .name = "EN32KHz CP",
510 .id = MAX8998_EN32KHZ_CP,
511 .ops = &max8998_others_ops,
512 .type = REGULATOR_VOLTAGE,
513 .owner = THIS_MODULE,
514 }, {
515 .name = "ENVICHG",
516 .id = MAX8998_ENVICHG,
517 .ops = &max8998_others_ops,
518 .type = REGULATOR_VOLTAGE,
519 .owner = THIS_MODULE,
520 }, {
521 .name = "ESAFEOUT1",
522 .id = MAX8998_ESAFEOUT1,
523 .ops = &max8998_others_ops,
524 .type = REGULATOR_VOLTAGE,
525 .owner = THIS_MODULE,
526 }, {
527 .name = "ESAFEOUT2",
528 .id = MAX8998_ESAFEOUT2,
529 .ops = &max8998_others_ops,
530 .type = REGULATOR_VOLTAGE,
531 .owner = THIS_MODULE,
532 }
533};
534
535static __devinit int max8998_pmic_probe(struct platform_device *pdev)
536{
537 struct max8998_dev *iodev = dev_get_drvdata(pdev->dev.parent);
538 struct max8998_platform_data *pdata = dev_get_platdata(iodev->dev);
539 struct regulator_dev **rdev;
540 struct max8998_data *max8998;
541 int i, ret, size;
542
543 if (!pdata) {
544 dev_err(pdev->dev.parent, "No platform init data supplied\n");
545 return -ENODEV;
546 }
547
548 max8998 = kzalloc(sizeof(struct max8998_data), GFP_KERNEL);
549 if (!max8998)
550 return -ENOMEM;
551
552 size = sizeof(struct regulator_dev *) * (pdata->num_regulators + 1);
553 max8998->rdev = kzalloc(size, GFP_KERNEL);
554 if (!max8998->rdev) {
555 kfree(max8998);
556 return -ENOMEM;
557 }
558
559 rdev = max8998->rdev;
560 max8998->iodev = iodev;
561 platform_set_drvdata(pdev, max8998);
562
563 for (i = 0; i < pdata->num_regulators; i++) {
564 const struct voltage_map_desc *desc;
565 int id = pdata->regulators[i].id;
566 int index = id - MAX8998_LDO2;
567
568 desc = ldo_voltage_map[id];
569 if (desc && regulators[index].ops != &max8998_others_ops) {
570 int count = (desc->max - desc->min) / desc->step + 1;
571 regulators[index].n_voltages = count;
572 }
573 rdev[i] = regulator_register(&regulators[index], max8998->dev,
574 pdata->regulators[i].initdata, max8998);
575 if (IS_ERR(rdev[i])) {
576 ret = PTR_ERR(rdev[i]);
577 dev_err(max8998->dev, "regulator init failed\n");
578 rdev[i] = NULL;
579 goto err;
580 }
581 }
582
583
584 return 0;
585err:
586 for (i = 0; i <= max8998->num_regulators; i++)
587 if (rdev[i])
588 regulator_unregister(rdev[i]);
589
590 kfree(max8998->rdev);
591 kfree(max8998);
592
593 return ret;
594}
595
596static int __devexit max8998_pmic_remove(struct platform_device *pdev)
597{
598 struct max8998_data *max8998 = platform_get_drvdata(pdev);
599 struct regulator_dev **rdev = max8998->rdev;
600 int i;
601
602 for (i = 0; i <= max8998->num_regulators; i++)
603 if (rdev[i])
604 regulator_unregister(rdev[i]);
605
606 kfree(max8998->rdev);
607 kfree(max8998);
608
609 return 0;
610}
611
612static struct platform_driver max8998_pmic_driver = {
613 .driver = {
614 .name = "max8998-pmic",
615 .owner = THIS_MODULE,
616 },
617 .probe = max8998_pmic_probe,
618 .remove = __devexit_p(max8998_pmic_remove),
619};
620
621static int __init max8998_pmic_init(void)
622{
623 return platform_driver_register(&max8998_pmic_driver);
624}
625subsys_initcall(max8998_pmic_init);
626
627static void __exit max8998_pmic_cleanup(void)
628{
629 platform_driver_unregister(&max8998_pmic_driver);
630}
631module_exit(max8998_pmic_cleanup);
632
633MODULE_DESCRIPTION("MAXIM 8998 voltage regulator driver");
634MODULE_AUTHOR("Kyungmin Park <kyungmin.park@samsung.com>");
635MODULE_LICENSE("GPL");
diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
index f50afc9f287..cd6d4fc9d74 100644
--- a/drivers/regulator/tps65023-regulator.c
+++ b/drivers/regulator/tps65023-regulator.c
@@ -585,6 +585,8 @@ static const struct tps_info tps65023_regs[] = {
585static const struct i2c_device_id tps_65023_id[] = { 585static const struct i2c_device_id tps_65023_id[] = {
586 {.name = "tps65023", 586 {.name = "tps65023",
587 .driver_data = (unsigned long) tps65023_regs,}, 587 .driver_data = (unsigned long) tps65023_regs,},
588 {.name = "tps65021",
589 .driver_data = (unsigned long) tps65023_regs,},
588 { }, 590 { },
589}; 591};
590 592
diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c
index 8152d65220f..c239f42aa4a 100644
--- a/drivers/regulator/tps6507x-regulator.c
+++ b/drivers/regulator/tps6507x-regulator.c
@@ -614,6 +614,7 @@ int tps6507x_pmic_probe(struct platform_device *pdev)
614 } 614 }
615 615
616 tps6507x_dev->pmic = tps; 616 tps6507x_dev->pmic = tps;
617 platform_set_drvdata(pdev, tps6507x_dev);
617 618
618 return 0; 619 return 0;
619 620
diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c
new file mode 100644
index 00000000000..8cff1413a14
--- /dev/null
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -0,0 +1,396 @@
1/*
2 * Regulator driver for TI TPS6586x
3 *
4 * Copyright (C) 2010 Compulab Ltd.
5 * Author: Mike Rapoport <mike@compulab.co.il>
6 *
7 * Based on da903x
8 * Copyright (C) 2006-2008 Marvell International Ltd.
9 * Copyright (C) 2008 Compulab Ltd.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 */
15
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/err.h>
19#include <linux/slab.h>
20#include <linux/platform_device.h>
21#include <linux/regulator/driver.h>
22#include <linux/regulator/machine.h>
23#include <linux/mfd/tps6586x.h>
24
25/* supply control and voltage setting */
26#define TPS6586X_SUPPLYENA 0x10
27#define TPS6586X_SUPPLYENB 0x11
28#define TPS6586X_SUPPLYENC 0x12
29#define TPS6586X_SUPPLYEND 0x13
30#define TPS6586X_SUPPLYENE 0x14
31#define TPS6586X_VCC1 0x20
32#define TPS6586X_VCC2 0x21
33#define TPS6586X_SM1V1 0x23
34#define TPS6586X_SM1V2 0x24
35#define TPS6586X_SM1SL 0x25
36#define TPS6586X_SM0V1 0x26
37#define TPS6586X_SM0V2 0x27
38#define TPS6586X_SM0SL 0x28
39#define TPS6586X_LDO2AV1 0x29
40#define TPS6586X_LDO2AV2 0x2A
41#define TPS6586X_LDO2BV1 0x2F
42#define TPS6586X_LDO2BV2 0x30
43#define TPS6586X_LDO4V1 0x32
44#define TPS6586X_LDO4V2 0x33
45
46/* converter settings */
47#define TPS6586X_SUPPLYV1 0x41
48#define TPS6586X_SUPPLYV2 0x42
49#define TPS6586X_SUPPLYV3 0x43
50#define TPS6586X_SUPPLYV4 0x44
51#define TPS6586X_SUPPLYV5 0x45
52#define TPS6586X_SUPPLYV6 0x46
53#define TPS6586X_SMODE1 0x47
54#define TPS6586X_SMODE2 0x48
55
56struct tps6586x_regulator {
57 struct regulator_desc desc;
58
59 int volt_reg;
60 int volt_shift;
61 int volt_nbits;
62 int enable_bit[2];
63 int enable_reg[2];
64
65 int *voltages;
66
67 /* for DVM regulators */
68 int go_reg;
69 int go_bit;
70};
71
72static inline struct device *to_tps6586x_dev(struct regulator_dev *rdev)
73{
74 return rdev_get_dev(rdev)->parent->parent;
75}
76
77static int tps6586x_ldo_list_voltage(struct regulator_dev *rdev,
78 unsigned selector)
79{
80 struct tps6586x_regulator *info = rdev_get_drvdata(rdev);
81
82 return info->voltages[selector] * 1000;
83}
84
85
86static int __tps6586x_ldo_set_voltage(struct device *parent,
87 struct tps6586x_regulator *ri,
88 int min_uV, int max_uV)
89{
90 int val, uV;
91 uint8_t mask;
92
93 for (val = 0; val < ri->desc.n_voltages; val++) {
94 uV = ri->voltages[val] * 1000;
95
96 /* LDO0 has minimal voltage 1.2 rather than 1.25 */
97 if (ri->desc.id == TPS6586X_ID_LDO_0 && val == 0)
98 uV -= 50 * 1000;
99
100 /* use the first in-range value */
101 if (min_uV <= uV && uV <= max_uV) {
102
103 val <<= ri->volt_shift;
104 mask = ((1 << ri->volt_nbits) - 1) << ri->volt_shift;
105
106 return tps6586x_update(parent, ri->volt_reg, val, mask);
107 }
108 }
109
110 return -EINVAL;
111}
112
113static int tps6586x_ldo_set_voltage(struct regulator_dev *rdev,
114 int min_uV, int max_uV)
115{
116 struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
117 struct device *parent = to_tps6586x_dev(rdev);
118
119 return __tps6586x_ldo_set_voltage(parent, ri, min_uV, max_uV);
120}
121
122static int tps6586x_ldo_get_voltage(struct regulator_dev *rdev)
123{
124 struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
125 struct device *parent = to_tps6586x_dev(rdev);
126 uint8_t val, mask;
127 int ret;
128
129 ret = tps6586x_read(parent, ri->volt_reg, &val);
130 if (ret)
131 return ret;
132
133 mask = ((1 << ri->volt_nbits) - 1) << ri->volt_shift;
134 val = (val & mask) >> ri->volt_shift;
135
136 if (val > ri->desc.n_voltages)
137 BUG();
138
139 return ri->voltages[val] * 1000;
140}
141
142static int tps6586x_dvm_set_voltage(struct regulator_dev *rdev,
143 int min_uV, int max_uV)
144{
145 struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
146 struct device *parent = to_tps6586x_dev(rdev);
147 int ret;
148
149 ret = __tps6586x_ldo_set_voltage(parent, ri, min_uV, max_uV);
150 if (ret)
151 return ret;
152
153 return tps6586x_set_bits(parent, ri->go_reg, ri->go_bit);
154}
155
156static int tps6586x_regulator_enable(struct regulator_dev *rdev)
157{
158 struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
159 struct device *parent = to_tps6586x_dev(rdev);
160
161 return tps6586x_set_bits(parent, ri->enable_reg[0],
162 1 << ri->enable_bit[0]);
163}
164
165static int tps6586x_regulator_disable(struct regulator_dev *rdev)
166{
167 struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
168 struct device *parent = to_tps6586x_dev(rdev);
169
170 return tps6586x_clr_bits(parent, ri->enable_reg[0],
171 1 << ri->enable_bit[0]);
172}
173
174static int tps6586x_regulator_is_enabled(struct regulator_dev *rdev)
175{
176 struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
177 struct device *parent = to_tps6586x_dev(rdev);
178 uint8_t reg_val;
179 int ret;
180
181 ret = tps6586x_read(parent, ri->enable_reg[0], &reg_val);
182 if (ret)
183 return ret;
184
185 return !!(reg_val & (1 << ri->enable_bit[0]));
186}
187
188static struct regulator_ops tps6586x_regulator_ldo_ops = {
189 .list_voltage = tps6586x_ldo_list_voltage,
190 .get_voltage = tps6586x_ldo_get_voltage,
191 .set_voltage = tps6586x_ldo_set_voltage,
192
193 .is_enabled = tps6586x_regulator_is_enabled,
194 .enable = tps6586x_regulator_enable,
195 .disable = tps6586x_regulator_disable,
196};
197
198static struct regulator_ops tps6586x_regulator_dvm_ops = {
199 .list_voltage = tps6586x_ldo_list_voltage,
200 .get_voltage = tps6586x_ldo_get_voltage,
201 .set_voltage = tps6586x_dvm_set_voltage,
202
203 .is_enabled = tps6586x_regulator_is_enabled,
204 .enable = tps6586x_regulator_enable,
205 .disable = tps6586x_regulator_disable,
206};
207
208static int tps6586x_ldo_voltages[] = {
209 1250, 1500, 1800, 2500, 2700, 2850, 3100, 3300,
210};
211
212static int tps6586x_ldo4_voltages[] = {
213 1700, 1725, 1750, 1775, 1800, 1825, 1850, 1875,
214 1900, 1925, 1950, 1975, 2000, 2025, 2050, 2075,
215 2100, 2125, 2150, 2175, 2200, 2225, 2250, 2275,
216 2300, 2325, 2350, 2375, 2400, 2425, 2450, 2475,
217};
218
219static int tps6586x_sm2_voltages[] = {
220 3000, 3050, 3100, 3150, 3200, 3250, 3300, 3350,
221 3400, 3450, 3500, 3550, 3600, 3650, 3700, 3750,
222 3800, 3850, 3900, 3950, 4000, 4050, 4100, 4150,
223 4200, 4250, 4300, 4350, 4400, 4450, 4500, 4550,
224};
225
226static int tps6586x_dvm_voltages[] = {
227 725, 750, 775, 800, 825, 850, 875, 900,
228 925, 950, 975, 1000, 1025, 1050, 1075, 1100,
229 1125, 1150, 1175, 1200, 1225, 1250, 1275, 1300,
230 1325, 1350, 1375, 1400, 1425, 1450, 1475, 1500,
231};
232
233#define TPS6586X_REGULATOR(_id, vdata, _ops, vreg, shift, nbits, \
234 ereg0, ebit0, ereg1, ebit1, goreg, gobit) \
235{ \
236 .desc = { \
237 .name = "REG-" #_id, \
238 .ops = &tps6586x_regulator_##_ops, \
239 .type = REGULATOR_VOLTAGE, \
240 .id = TPS6586X_ID_##_id, \
241 .n_voltages = ARRAY_SIZE(tps6586x_##vdata##_voltages), \
242 .owner = THIS_MODULE, \
243 }, \
244 .volt_reg = TPS6586X_##vreg, \
245 .volt_shift = (shift), \
246 .volt_nbits = (nbits), \
247 .enable_reg[0] = TPS6586X_SUPPLY##ereg0, \
248 .enable_bit[0] = (ebit0), \
249 .enable_reg[1] = TPS6586X_SUPPLY##ereg1, \
250 .enable_bit[1] = (ebit1), \
251 .voltages = tps6586x_##vdata##_voltages, \
252}
253
254#define TPS6586X_LDO(_id, vdata, vreg, shift, nbits, \
255 ereg0, ebit0, ereg1, ebit1) \
256 TPS6586X_REGULATOR(_id, vdata, ldo_ops, vreg, shift, nbits, \
257 ereg0, ebit0, ereg1, ebit1, 0, 0)
258
259#define TPS6586X_DVM(_id, vdata, vreg, shift, nbits, \
260 ereg0, ebit0, ereg1, ebit1, goreg, gobit) \
261 TPS6586X_REGULATOR(_id, vdata, dvm_ops, vreg, shift, nbits, \
262 ereg0, ebit0, ereg1, ebit1, goreg, gobit)
263
264static struct tps6586x_regulator tps6586x_regulator[] = {
265 TPS6586X_LDO(LDO_0, ldo, SUPPLYV1, 5, 3, ENC, 0, END, 0),
266 TPS6586X_LDO(LDO_3, ldo, SUPPLYV4, 0, 3, ENC, 2, END, 2),
267 TPS6586X_LDO(LDO_5, ldo, SUPPLYV6, 0, 3, ENE, 6, ENE, 6),
268 TPS6586X_LDO(LDO_6, ldo, SUPPLYV3, 0, 3, ENC, 4, END, 4),
269 TPS6586X_LDO(LDO_7, ldo, SUPPLYV3, 3, 3, ENC, 5, END, 5),
270 TPS6586X_LDO(LDO_8, ldo, SUPPLYV1, 5, 3, ENC, 6, END, 6),
271 TPS6586X_LDO(LDO_9, ldo, SUPPLYV6, 3, 3, ENE, 7, ENE, 7),
272 TPS6586X_LDO(LDO_RTC, ldo, SUPPLYV4, 3, 3, ENE, 7, ENE, 7),
273 TPS6586X_LDO(LDO_1, dvm, SUPPLYV1, 0, 5, ENC, 1, END, 1),
274 TPS6586X_LDO(SM_2, sm2, SUPPLYV2, 0, 5, ENC, 1, END, 1),
275
276 TPS6586X_DVM(LDO_2, dvm, LDO2BV1, 0, 5, ENA, 3, ENB, 3, VCC2, 6),
277 TPS6586X_DVM(LDO_4, ldo4, LDO4V1, 0, 5, ENC, 3, END, 3, VCC1, 6),
278 TPS6586X_DVM(SM_0, dvm, SM0V1, 0, 5, ENA, 1, ENB, 1, VCC1, 2),
279 TPS6586X_DVM(SM_1, dvm, SM1V1, 0, 5, ENA, 0, ENB, 0, VCC1, 0),
280};
281
282/*
283 * TPS6586X has 2 enable bits that are OR'ed to determine the actual
284 * regulator state. Clearing one of this bits allows switching
285 * regulator on and of with single register write.
286 */
287static inline int tps6586x_regulator_preinit(struct device *parent,
288 struct tps6586x_regulator *ri)
289{
290 uint8_t val1, val2;
291 int ret;
292
293 ret = tps6586x_read(parent, ri->enable_reg[0], &val1);
294 if (ret)
295 return ret;
296
297 ret = tps6586x_read(parent, ri->enable_reg[1], &val2);
298 if (ret)
299 return ret;
300
301 if (!(val2 & ri->enable_bit[1]))
302 return 0;
303
304 /*
305 * The regulator is on, but it's enabled with the bit we don't
306 * want to use, so we switch the enable bits
307 */
308 if (!(val1 & ri->enable_bit[0])) {
309 ret = tps6586x_set_bits(parent, ri->enable_reg[0],
310 1 << ri->enable_bit[0]);
311 if (ret)
312 return ret;
313 }
314
315 return tps6586x_clr_bits(parent, ri->enable_reg[1],
316 1 << ri->enable_bit[1]);
317}
318
319static inline struct tps6586x_regulator *find_regulator_info(int id)
320{
321 struct tps6586x_regulator *ri;
322 int i;
323
324 for (i = 0; i < ARRAY_SIZE(tps6586x_regulator); i++) {
325 ri = &tps6586x_regulator[i];
326 if (ri->desc.id == id)
327 return ri;
328 }
329 return NULL;
330}
331
332static int __devinit tps6586x_regulator_probe(struct platform_device *pdev)
333{
334 struct tps6586x_regulator *ri = NULL;
335 struct regulator_dev *rdev;
336 int id = pdev->id;
337 int err;
338
339 dev_dbg(&pdev->dev, "Probing reulator %d\n", id);
340
341 ri = find_regulator_info(id);
342 if (ri == NULL) {
343 dev_err(&pdev->dev, "invalid regulator ID specified\n");
344 return -EINVAL;
345 }
346
347 err = tps6586x_regulator_preinit(pdev->dev.parent, ri);
348 if (err)
349 return err;
350
351 rdev = regulator_register(&ri->desc, &pdev->dev,
352 pdev->dev.platform_data, ri);
353 if (IS_ERR(rdev)) {
354 dev_err(&pdev->dev, "failed to register regulator %s\n",
355 ri->desc.name);
356 return PTR_ERR(rdev);
357 }
358
359 platform_set_drvdata(pdev, rdev);
360
361 return 0;
362}
363
364static int __devexit tps6586x_regulator_remove(struct platform_device *pdev)
365{
366 struct regulator_dev *rdev = platform_get_drvdata(pdev);
367
368 regulator_unregister(rdev);
369 return 0;
370}
371
372static struct platform_driver tps6586x_regulator_driver = {
373 .driver = {
374 .name = "tps6586x-regulator",
375 .owner = THIS_MODULE,
376 },
377 .probe = tps6586x_regulator_probe,
378 .remove = __devexit_p(tps6586x_regulator_remove),
379};
380
381static int __init tps6586x_regulator_init(void)
382{
383 return platform_driver_register(&tps6586x_regulator_driver);
384}
385subsys_initcall(tps6586x_regulator_init);
386
387static void __exit tps6586x_regulator_exit(void)
388{
389 platform_driver_unregister(&tps6586x_regulator_driver);
390}
391module_exit(tps6586x_regulator_exit);
392
393MODULE_LICENSE("GPL");
394MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
395MODULE_DESCRIPTION("Regulator Driver for TI TPS6586X PMIC");
396MODULE_ALIAS("platform:tps6586x-regulator");
diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c
index 5a1dc8a24d3..03713bc66e4 100644
--- a/drivers/regulator/wm8994-regulator.c
+++ b/drivers/regulator/wm8994-regulator.c
@@ -219,8 +219,6 @@ static __devinit int wm8994_ldo_probe(struct platform_device *pdev)
219 219
220 ldo->wm8994 = wm8994; 220 ldo->wm8994 = wm8994;
221 221
222 ldo->is_enabled = true;
223
224 if (pdata->ldo[id].enable && gpio_is_valid(pdata->ldo[id].enable)) { 222 if (pdata->ldo[id].enable && gpio_is_valid(pdata->ldo[id].enable)) {
225 ldo->enable = pdata->ldo[id].enable; 223 ldo->enable = pdata->ldo[id].enable;
226 224
@@ -237,7 +235,8 @@ static __devinit int wm8994_ldo_probe(struct platform_device *pdev)
237 ret); 235 ret);
238 goto err_gpio; 236 goto err_gpio;
239 } 237 }
240 } 238 } else
239 ldo->is_enabled = true;
241 240
242 ldo->regulator = regulator_register(&wm8994_ldo_desc[id], &pdev->dev, 241 ldo->regulator = regulator_register(&wm8994_ldo_desc[id], &pdev->dev,
243 pdata->ldo[id].init_data, ldo); 242 pdata->ldo[id].init_data, ldo);
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-22 13:32:16 -0400