virtio-mem: don't read big block size in Sub Block Mode
[linux-2.6-microblaze.git] / drivers / regulator / 88pm8607.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Regulators driver for Marvell 88PM8607
4  *
5  * Copyright (C) 2009 Marvell International Ltd.
6  *      Haojian Zhuang <haojian.zhuang@marvell.com>
7  */
8 #include <linux/kernel.h>
9 #include <linux/init.h>
10 #include <linux/err.h>
11 #include <linux/of.h>
12 #include <linux/regulator/of_regulator.h>
13 #include <linux/platform_device.h>
14 #include <linux/regulator/driver.h>
15 #include <linux/regulator/machine.h>
16 #include <linux/mfd/88pm860x.h>
17 #include <linux/module.h>
18
19 struct pm8607_regulator_info {
20         struct regulator_desc   desc;
21
22         unsigned int    *vol_suspend;
23
24         int     slope_double;
25 };
26
27 static const unsigned int BUCK1_table[] = {
28          725000,  750000,  775000,  800000,  825000,  850000,  875000,  900000,
29          925000,  950000,  975000, 1000000, 1025000, 1050000, 1075000, 1100000,
30         1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
31         1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
32               0,   25000,   50000,   75000,  100000,  125000,  150000,  175000,
33          200000,  225000,  250000,  275000,  300000,  325000,  350000,  375000,
34          400000,  425000,  450000,  475000,  500000,  525000,  550000,  575000,
35          600000,  625000,  650000,  675000,  700000,  725000,  750000,  775000,
36 };
37
38 static const unsigned int BUCK1_suspend_table[] = {
39               0,   25000,   50000,   75000,  100000,  125000,  150000,  175000,
40          200000,  225000,  250000,  275000,  300000,  325000,  350000,  375000,
41          400000,  425000,  450000,  475000,  500000,  525000,  550000,  575000,
42          600000,  625000,  650000,  675000,  700000,  725000,  750000,  775000,
43          800000,  825000,  850000,  875000,  900000,  925000,  950000,  975000,
44         1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
45         1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
46         1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
47 };
48
49 static const unsigned int BUCK2_table[] = {
50               0,   50000,  100000,  150000,  200000,  250000,  300000,  350000,
51          400000,  450000,  500000,  550000,  600000,  650000,  700000,  750000,
52          800000,  850000,  900000,  950000, 1000000, 1050000, 1100000, 1150000,
53         1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
54         1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
55         2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
56         2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
57         2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
58 };
59
60 static const unsigned int BUCK2_suspend_table[] = {
61               0,   50000,  100000,  150000,  200000,  250000,  300000,  350000,
62          400000,  450000,  500000,  550000,  600000,  650000,  700000,  750000,
63          800000,  850000,  900000,  950000, 1000000, 1050000, 1100000, 1150000,
64         1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
65         1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
66         2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
67         2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
68         2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
69 };
70
71 static const unsigned int BUCK3_table[] = {
72               0,   25000,   50000,   75000,  100000,  125000,  150000,  175000,
73          200000,  225000,  250000,  275000,  300000,  325000,  350000,  375000,
74          400000,  425000,  450000,  475000,  500000,  525000,  550000,  575000,
75          600000,  625000,  650000,  675000,  700000,  725000,  750000,  775000,
76          800000,  825000,  850000,  875000,  900000,  925000,  950000,  975000,
77         1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
78         1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
79         1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
80 };
81
82 static const unsigned int BUCK3_suspend_table[] = {
83               0,   25000,   50000,   75000,  100000,  125000,  150000,  175000,
84          200000,  225000,  250000,  275000,  300000,  325000,  350000,  375000,
85          400000,  425000,  450000,  475000,  500000,  525000,  550000,  575000,
86          600000,  625000,  650000,  675000,  700000,  725000,  750000,  775000,
87          800000,  825000,  850000,  875000,  900000,  925000,  950000,  975000,
88         1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
89         1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
90         1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
91 };
92
93 static const unsigned int LDO1_table[] = {
94         1800000, 1200000, 2800000, 0,
95 };
96
97 static const unsigned int LDO1_suspend_table[] = {
98         1800000, 1200000, 0, 0,
99 };
100
101 static const unsigned int LDO2_table[] = {
102         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
103 };
104
105 static const unsigned int LDO2_suspend_table[] = {
106         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
107 };
108
109 static const unsigned int LDO3_table[] = {
110         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
111 };
112
113 static const unsigned int LDO3_suspend_table[] = {
114         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
115 };
116
117 static const unsigned int LDO4_table[] = {
118         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,
119 };
120
121 static const unsigned int LDO4_suspend_table[] = {
122         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,
123 };
124
125 static const unsigned int LDO5_table[] = {
126         2900000, 3000000, 3100000, 3300000,
127 };
128
129 static const unsigned int LDO5_suspend_table[] = {
130         2900000, 0, 0, 0,
131 };
132
133 static const unsigned int LDO6_table[] = {
134         1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,
135 };
136
137 static const unsigned int LDO6_suspend_table[] = {
138         1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,
139 };
140
141 static const unsigned int LDO7_table[] = {
142         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
143 };
144
145 static const unsigned int LDO7_suspend_table[] = {
146         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
147 };
148
149 static const unsigned int LDO8_table[] = {
150         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
151 };
152
153 static const unsigned int LDO8_suspend_table[] = {
154         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
155 };
156
157 static const unsigned int LDO9_table[] = {
158         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
159 };
160
161 static const unsigned int LDO9_suspend_table[] = {
162         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
163 };
164
165 static const unsigned int LDO10_table[] = {
166         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
167         1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
168 };
169
170 static const unsigned int LDO10_suspend_table[] = {
171         1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
172         1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
173 };
174
175 static const unsigned int LDO12_table[] = {
176         1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,
177         1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
178 };
179
180 static const unsigned int LDO12_suspend_table[] = {
181         1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,
182         1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
183 };
184
185 static const unsigned int LDO13_table[] = {
186         1200000, 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0,
187 };
188
189 static const unsigned int LDO13_suspend_table[] = {
190         0,
191 };
192
193 static const unsigned int LDO14_table[] = {
194         1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,
195 };
196
197 static const unsigned int LDO14_suspend_table[] = {
198         1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,
199 };
200
201 static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
202 {
203         struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
204         int ret;
205
206         ret = regulator_list_voltage_table(rdev, index);
207         if (ret < 0)
208                 return ret;
209
210         if (info->slope_double)
211                 ret <<= 1;
212
213         return ret;
214 }
215
216 static const struct regulator_ops pm8607_regulator_ops = {
217         .list_voltage   = pm8607_list_voltage,
218         .set_voltage_sel = regulator_set_voltage_sel_regmap,
219         .get_voltage_sel = regulator_get_voltage_sel_regmap,
220         .enable = regulator_enable_regmap,
221         .disable = regulator_disable_regmap,
222         .is_enabled = regulator_is_enabled_regmap,
223 };
224
225 static const struct regulator_ops pm8606_preg_ops = {
226         .enable         = regulator_enable_regmap,
227         .disable        = regulator_disable_regmap,
228         .is_enabled     = regulator_is_enabled_regmap,
229 };
230
231 #define PM8606_PREG(ereg, ebit)                                         \
232 {                                                                       \
233         .desc   = {                                                     \
234                 .name   = "PREG",                                       \
235                 .of_match = of_match_ptr("PREG"),                       \
236                 .regulators_node = of_match_ptr("regulators"),          \
237                 .ops    = &pm8606_preg_ops,                             \
238                 .type   = REGULATOR_CURRENT,                            \
239                 .id     = PM8606_ID_PREG,                               \
240                 .owner  = THIS_MODULE,                                  \
241                 .enable_reg = PM8606_##ereg,                            \
242                 .enable_mask = (ebit),                                  \
243                 .enable_is_inverted = true,                             \
244         },                                                              \
245 }
246
247 #define PM8607_DVC(vreg, ureg, ubit, ereg, ebit)                        \
248 {                                                                       \
249         .desc   = {                                                     \
250                 .name   = #vreg,                                        \
251                 .of_match = of_match_ptr(#vreg),                        \
252                 .regulators_node = of_match_ptr("regulators"),          \
253                 .ops    = &pm8607_regulator_ops,                        \
254                 .type   = REGULATOR_VOLTAGE,                            \
255                 .id     = PM8607_ID_##vreg,                             \
256                 .owner  = THIS_MODULE,                                  \
257                 .volt_table = vreg##_table,                             \
258                 .n_voltages = ARRAY_SIZE(vreg##_table),                 \
259                 .vsel_reg = PM8607_##vreg,                              \
260                 .vsel_mask = ARRAY_SIZE(vreg##_table) - 1,              \
261                 .apply_reg = PM8607_##ureg,                             \
262                 .apply_bit = (ubit),                                    \
263                 .enable_reg = PM8607_##ereg,                            \
264                 .enable_mask = 1 << (ebit),                             \
265         },                                                              \
266         .slope_double   = (0),                                          \
267         .vol_suspend    = (unsigned int *)&vreg##_suspend_table,        \
268 }
269
270 #define PM8607_LDO(_id, vreg, shift, ereg, ebit)                        \
271 {                                                                       \
272         .desc   = {                                                     \
273                 .name   = "LDO" #_id,                                   \
274                 .of_match = of_match_ptr("LDO" #_id),                   \
275                 .regulators_node = of_match_ptr("regulators"),          \
276                 .ops    = &pm8607_regulator_ops,                        \
277                 .type   = REGULATOR_VOLTAGE,                            \
278                 .id     = PM8607_ID_LDO##_id,                           \
279                 .owner  = THIS_MODULE,                                  \
280                 .volt_table = LDO##_id##_table,                         \
281                 .n_voltages = ARRAY_SIZE(LDO##_id##_table),             \
282                 .vsel_reg = PM8607_##vreg,                              \
283                 .vsel_mask = (ARRAY_SIZE(LDO##_id##_table) - 1) << (shift), \
284                 .enable_reg = PM8607_##ereg,                            \
285                 .enable_mask = 1 << (ebit),                             \
286         },                                                              \
287         .slope_double   = (0),                                          \
288         .vol_suspend    = (unsigned int *)&LDO##_id##_suspend_table,    \
289 }
290
291 static struct pm8607_regulator_info pm8607_regulator_info[] = {
292         PM8607_DVC(BUCK1, GO, BIT(0), SUPPLIES_EN11, 0),
293         PM8607_DVC(BUCK2, GO, BIT(1), SUPPLIES_EN11, 1),
294         PM8607_DVC(BUCK3, GO, BIT(2), SUPPLIES_EN11, 2),
295
296         PM8607_LDO(1,         LDO1, 0, SUPPLIES_EN11, 3),
297         PM8607_LDO(2,         LDO2, 0, SUPPLIES_EN11, 4),
298         PM8607_LDO(3,         LDO3, 0, SUPPLIES_EN11, 5),
299         PM8607_LDO(4,         LDO4, 0, SUPPLIES_EN11, 6),
300         PM8607_LDO(5,         LDO5, 0, SUPPLIES_EN11, 7),
301         PM8607_LDO(6,         LDO6, 0, SUPPLIES_EN12, 0),
302         PM8607_LDO(7,         LDO7, 0, SUPPLIES_EN12, 1),
303         PM8607_LDO(8,         LDO8, 0, SUPPLIES_EN12, 2),
304         PM8607_LDO(9,         LDO9, 0, SUPPLIES_EN12, 3),
305         PM8607_LDO(10,        LDO10, 0, SUPPLIES_EN12, 4),
306         PM8607_LDO(12,        LDO12, 0, SUPPLIES_EN12, 5),
307         PM8607_LDO(13, VIBRATOR_SET, 1, VIBRATOR_SET, 0),
308         PM8607_LDO(14,        LDO14, 0, SUPPLIES_EN12, 6),
309 };
310
311 static struct pm8607_regulator_info pm8606_regulator_info[] = {
312         PM8606_PREG(PREREGULATORB, 5),
313 };
314
315 static int pm8607_regulator_probe(struct platform_device *pdev)
316 {
317         struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
318         struct pm8607_regulator_info *info = NULL;
319         struct regulator_init_data *pdata = dev_get_platdata(&pdev->dev);
320         struct regulator_config config = { };
321         struct regulator_dev *rdev;
322         struct resource *res;
323         int i;
324
325         res = platform_get_resource(pdev, IORESOURCE_REG, 0);
326         if (res) {
327                 /* There're resources in 88PM8607 regulator driver */
328                 for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
329                         info = &pm8607_regulator_info[i];
330                         if (info->desc.vsel_reg == res->start)
331                                 break;
332                 }
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);
336                         return -EINVAL;
337                 }
338         } else {
339                 /* There's no resource in 88PM8606 PREG regulator driver */
340                 info = &pm8606_regulator_info[0];
341                 /* i is used to check regulator ID */
342                 i = -1;
343         }
344
345         /* check DVC ramp slope double */
346         if ((i == PM8607_ID_BUCK3) && chip->buck3_double)
347                 info->slope_double = 1;
348
349         config.dev = chip->dev;
350         config.driver_data = info;
351
352         if (pdata)
353                 config.init_data = pdata;
354
355         if (chip->id == CHIP_PM8607)
356                 config.regmap = chip->regmap;
357         else
358                 config.regmap = chip->regmap_companion;
359
360         rdev = devm_regulator_register(&pdev->dev, &info->desc, &config);
361         if (IS_ERR(rdev)) {
362                 dev_err(&pdev->dev, "failed to register regulator %s\n",
363                         info->desc.name);
364                 return PTR_ERR(rdev);
365         }
366
367         platform_set_drvdata(pdev, info);
368         return 0;
369 }
370
371 static const struct platform_device_id pm8607_regulator_driver_ids[] = {
372         {
373                 .name   = "88pm860x-regulator",
374                 .driver_data    = 0,
375         }, {
376                 .name   = "88pm860x-preg",
377                 .driver_data    = 0,
378         },
379         { },
380 };
381 MODULE_DEVICE_TABLE(platform, pm8607_regulator_driver_ids);
382
383 static struct platform_driver pm8607_regulator_driver = {
384         .driver         = {
385                 .name   = "88pm860x-regulator",
386         },
387         .probe          = pm8607_regulator_probe,
388         .id_table       = pm8607_regulator_driver_ids,
389 };
390
391 static int __init pm8607_regulator_init(void)
392 {
393         return platform_driver_register(&pm8607_regulator_driver);
394 }
395 subsys_initcall(pm8607_regulator_init);
396
397 static void __exit pm8607_regulator_exit(void)
398 {
399         platform_driver_unregister(&pm8607_regulator_driver);
400 }
401 module_exit(pm8607_regulator_exit);
402
403 MODULE_LICENSE("GPL");
404 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
405 MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
406 MODULE_ALIAS("platform:88pm8607-regulator");