2 * Regulators driver for Marvell 88PM8607
4 * Copyright (C) 2009 Marvell International Ltd.
5 * Haojian Zhuang <haojian.zhuang@marvell.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/err.h>
14 #include <linux/i2c.h>
15 #include <linux/platform_device.h>
16 #include <linux/regulator/driver.h>
17 #include <linux/regulator/machine.h>
18 #include <linux/mfd/88pm860x.h>
19 #include <linux/module.h>
21 struct pm8607_regulator_info {
22 struct regulator_desc desc;
23 struct pm860x_chip *chip;
24 struct regulator_dev *regulator;
25 struct i2c_client *i2c;
27 unsigned int *vol_table;
28 unsigned int *vol_suspend;
35 static const unsigned int BUCK1_table[] = {
36 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000,
37 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000,
38 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
39 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
40 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
41 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
42 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
43 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
46 static const unsigned int BUCK1_suspend_table[] = {
47 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
48 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
49 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
50 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
51 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
52 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
53 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
54 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
57 static const unsigned int BUCK2_table[] = {
58 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
59 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
60 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
61 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
62 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
63 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
64 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
65 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
68 static const unsigned int BUCK2_suspend_table[] = {
69 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
70 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
71 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
72 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
73 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
74 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
75 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
76 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
79 static const unsigned int BUCK3_table[] = {
80 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
81 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
82 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
83 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
84 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
85 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
86 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
87 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
90 static const unsigned int BUCK3_suspend_table[] = {
91 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
92 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
93 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
94 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
95 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
96 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
97 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
98 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
101 static const unsigned int LDO1_table[] = {
102 1800000, 1200000, 2800000, 0,
105 static const unsigned int LDO1_suspend_table[] = {
106 1800000, 1200000, 0, 0,
109 static const unsigned int LDO2_table[] = {
110 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
113 static const unsigned int LDO2_suspend_table[] = {
114 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
117 static const unsigned int LDO3_table[] = {
118 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
121 static const unsigned int LDO3_suspend_table[] = {
122 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
125 static const unsigned int LDO4_table[] = {
126 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,
129 static const unsigned int LDO4_suspend_table[] = {
130 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,
133 static const unsigned int LDO5_table[] = {
134 2900000, 3000000, 3100000, 3300000,
137 static const unsigned int LDO5_suspend_table[] = {
141 static const unsigned int LDO6_table[] = {
142 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,
145 static const unsigned int LDO6_suspend_table[] = {
146 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,
149 static const unsigned int LDO7_table[] = {
150 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
153 static const unsigned int LDO7_suspend_table[] = {
154 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
157 static const unsigned int LDO8_table[] = {
158 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
161 static const unsigned int LDO8_suspend_table[] = {
162 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
165 static const unsigned int LDO9_table[] = {
166 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
169 static const unsigned int LDO9_suspend_table[] = {
170 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
173 static const unsigned int LDO10_table[] = {
174 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
175 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
178 static const unsigned int LDO10_suspend_table[] = {
179 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
180 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
183 static const unsigned int LDO12_table[] = {
184 1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,
185 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
188 static const unsigned int LDO12_suspend_table[] = {
189 1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,
190 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
193 static const unsigned int LDO13_table[] = {
194 1200000, 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0,
197 static const unsigned int LDO13_suspend_table[] = {
201 static const unsigned int LDO14_table[] = {
202 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,
205 static const unsigned int LDO14_suspend_table[] = {
206 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,
209 static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
211 struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
214 if (info->vol_table && (index < rdev->desc->n_voltages)) {
215 ret = info->vol_table[index];
216 if (info->slope_double)
222 static int pm8607_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
224 struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
228 val = (uint8_t)(selector << (ffs(rdev->desc->vsel_mask) - 1));
230 ret = pm860x_set_bits(info->i2c, rdev->desc->vsel_reg,
231 rdev->desc->vsel_mask, val);
234 switch (info->desc.id) {
235 case PM8607_ID_BUCK1:
236 case PM8607_ID_BUCK3:
237 ret = pm860x_set_bits(info->i2c, info->update_reg,
238 1 << info->update_bit,
239 1 << info->update_bit);
245 static struct regulator_ops pm8607_regulator_ops = {
246 .list_voltage = pm8607_list_voltage,
247 .set_voltage_sel = pm8607_set_voltage_sel,
248 .get_voltage_sel = regulator_get_voltage_sel_regmap,
249 .enable = regulator_enable_regmap,
250 .disable = regulator_disable_regmap,
251 .is_enabled = regulator_is_enabled_regmap,
254 #define PM8607_DVC(vreg, ureg, ubit, ereg, ebit) \
258 .ops = &pm8607_regulator_ops, \
259 .type = REGULATOR_VOLTAGE, \
260 .id = PM8607_ID_##vreg, \
261 .owner = THIS_MODULE, \
262 .n_voltages = ARRAY_SIZE(vreg##_table), \
263 .vsel_reg = PM8607_##vreg, \
264 .vsel_mask = ARRAY_SIZE(vreg##_table) - 1, \
265 .enable_reg = PM8607_##ereg, \
266 .enable_mask = 1 << (ebit), \
268 .update_reg = PM8607_##ureg, \
269 .update_bit = (ubit), \
270 .slope_double = (0), \
271 .vol_table = (unsigned int *)&vreg##_table, \
272 .vol_suspend = (unsigned int *)&vreg##_suspend_table, \
275 #define PM8607_LDO(_id, vreg, shift, ereg, ebit) \
278 .name = "LDO" #_id, \
279 .ops = &pm8607_regulator_ops, \
280 .type = REGULATOR_VOLTAGE, \
281 .id = PM8607_ID_LDO##_id, \
282 .owner = THIS_MODULE, \
283 .n_voltages = ARRAY_SIZE(LDO##_id##_table), \
284 .vsel_reg = PM8607_##vreg, \
285 .vsel_mask = (ARRAY_SIZE(LDO##_id##_table) - 1) << (shift), \
286 .enable_reg = PM8607_##ereg, \
287 .enable_mask = 1 << (ebit), \
289 .slope_double = (0), \
290 .vol_table = (unsigned int *)&LDO##_id##_table, \
291 .vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \
294 static struct pm8607_regulator_info pm8607_regulator_info[] = {
295 PM8607_DVC(BUCK1, GO, 0, SUPPLIES_EN11, 0),
296 PM8607_DVC(BUCK2, GO, 1, SUPPLIES_EN11, 1),
297 PM8607_DVC(BUCK3, GO, 2, SUPPLIES_EN11, 2),
299 PM8607_LDO(1, LDO1, 0, SUPPLIES_EN11, 3),
300 PM8607_LDO(2, LDO2, 0, SUPPLIES_EN11, 4),
301 PM8607_LDO(3, LDO3, 0, SUPPLIES_EN11, 5),
302 PM8607_LDO(4, LDO4, 0, SUPPLIES_EN11, 6),
303 PM8607_LDO(5, LDO5, 0, SUPPLIES_EN11, 7),
304 PM8607_LDO(6, LDO6, 0, SUPPLIES_EN12, 0),
305 PM8607_LDO(7, LDO7, 0, SUPPLIES_EN12, 1),
306 PM8607_LDO(8, LDO8, 0, SUPPLIES_EN12, 2),
307 PM8607_LDO(9, LDO9, 0, SUPPLIES_EN12, 3),
308 PM8607_LDO(10, LDO10, 0, SUPPLIES_EN12, 4),
309 PM8607_LDO(12, LDO12, 0, SUPPLIES_EN12, 5),
310 PM8607_LDO(13, VIBRATOR_SET, 1, VIBRATOR_SET, 0),
311 PM8607_LDO(14, LDO14, 0, SUPPLIES_EN12, 6),
314 static int __devinit pm8607_regulator_probe(struct platform_device *pdev)
316 struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
317 struct pm8607_regulator_info *info = NULL;
318 struct regulator_init_data *pdata = pdev->dev.platform_data;
319 struct regulator_config config = { };
320 struct resource *res;
323 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
325 dev_err(&pdev->dev, "No I/O resource!\n");
328 for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
329 info = &pm8607_regulator_info[i];
330 if (info->desc.id == res->start)
333 if (i == ARRAY_SIZE(pm8607_regulator_info)) {
334 dev_err(&pdev->dev, "Failed to find regulator %llu\n",
335 (unsigned long long)res->start);
338 info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
341 /* check DVC ramp slope double */
342 if ((i == PM8607_ID_BUCK3) && info->chip->buck3_double)
343 info->slope_double = 1;
345 config.dev = &pdev->dev;
346 config.init_data = pdata;
347 config.driver_data = info;
349 if (chip->id == CHIP_PM8607)
350 config.regmap = chip->regmap;
352 config.regmap = chip->regmap_companion;
354 /* replace driver_data with info */
355 info->regulator = regulator_register(&info->desc, &config);
356 if (IS_ERR(info->regulator)) {
357 dev_err(&pdev->dev, "failed to register regulator %s\n",
359 return PTR_ERR(info->regulator);
362 platform_set_drvdata(pdev, info);
366 static int __devexit pm8607_regulator_remove(struct platform_device *pdev)
368 struct pm8607_regulator_info *info = platform_get_drvdata(pdev);
370 platform_set_drvdata(pdev, NULL);
371 regulator_unregister(info->regulator);
375 static struct platform_driver pm8607_regulator_driver = {
377 .name = "88pm860x-regulator",
378 .owner = THIS_MODULE,
380 .probe = pm8607_regulator_probe,
381 .remove = __devexit_p(pm8607_regulator_remove),
384 static int __init pm8607_regulator_init(void)
386 return platform_driver_register(&pm8607_regulator_driver);
388 subsys_initcall(pm8607_regulator_init);
390 static void __exit pm8607_regulator_exit(void)
392 platform_driver_unregister(&pm8607_regulator_driver);
394 module_exit(pm8607_regulator_exit);
396 MODULE_LICENSE("GPL");
397 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
398 MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
399 MODULE_ALIAS("platform:88pm8607-regulator");