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");