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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 | /* * Regulators driver for Marvell 88PM8607 * * Copyright (C) 2009 Marvell International Ltd. * Haojian Zhuang <haojian.zhuang@marvell.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/of.h> #include <linux/regulator/of_regulator.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/mfd/88pm860x.h> #include <linux/module.h> struct pm8607_regulator_info { struct regulator_desc desc; struct pm860x_chip *chip; struct regulator_dev *regulator; struct i2c_client *i2c; struct i2c_client *i2c_8606; unsigned int *vol_table; unsigned int *vol_suspend; int slope_double; }; static const unsigned int BUCK1_table[] = { 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, }; static const unsigned int BUCK1_suspend_table[] = { 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000, }; static const unsigned int BUCK2_table[] = { 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000, 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000, 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000, 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000, 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000, 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000, 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000, }; static const unsigned int BUCK2_suspend_table[] = { 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000, 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000, 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000, 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000, 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000, 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000, 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000, }; static const unsigned int BUCK3_table[] = { 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000, }; static const unsigned int BUCK3_suspend_table[] = { 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000, }; static const unsigned int LDO1_table[] = { 1800000, 1200000, 2800000, 0, }; static const unsigned int LDO1_suspend_table[] = { 1800000, 1200000, 0, 0, }; static const unsigned int LDO2_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, }; static const unsigned int LDO2_suspend_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, }; static const unsigned int LDO3_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, }; static const unsigned int LDO3_suspend_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, }; static const unsigned int LDO4_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000, }; static const unsigned int LDO4_suspend_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000, }; static const unsigned int LDO5_table[] = { 2900000, 3000000, 3100000, 3300000, }; static const unsigned int LDO5_suspend_table[] = { 2900000, 0, 0, 0, }; static const unsigned int LDO6_table[] = { 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000, }; static const unsigned int LDO6_suspend_table[] = { 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000, }; static const unsigned int LDO7_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, }; static const unsigned int LDO7_suspend_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, }; static const unsigned int LDO8_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, }; static const unsigned int LDO8_suspend_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, }; static const unsigned int LDO9_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, }; static const unsigned int LDO9_suspend_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, }; static const unsigned int LDO10_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, }; static const unsigned int LDO10_suspend_table[] = { 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, }; static const unsigned int LDO12_table[] = { 1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, }; static const unsigned int LDO12_suspend_table[] = { 1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, }; static const unsigned int LDO13_table[] = { 1200000, 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0, }; static const unsigned int LDO13_suspend_table[] = { 0, }; static const unsigned int LDO14_table[] = { 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000, }; static const unsigned int LDO14_suspend_table[] = { 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000, }; static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index) { struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); int ret = -EINVAL; if (info->vol_table && (index < rdev->desc->n_voltages)) { ret = info->vol_table[index]; if (info->slope_double) ret <<= 1; } return ret; } static struct regulator_ops pm8607_regulator_ops = { .list_voltage = pm8607_list_voltage, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, }; static struct regulator_ops pm8606_preg_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, }; #define PM8606_PREG(ereg, ebit) \ { \ .desc = { \ .name = "PREG", \ .ops = &pm8606_preg_ops, \ .type = REGULATOR_CURRENT, \ .id = PM8606_ID_PREG, \ .owner = THIS_MODULE, \ .enable_reg = PM8606_##ereg, \ .enable_mask = (ebit), \ .enable_is_inverted = true, \ }, \ } #define PM8607_DVC(vreg, ureg, ubit, ereg, ebit) \ { \ .desc = { \ .name = #vreg, \ .ops = &pm8607_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PM8607_ID_##vreg, \ .owner = THIS_MODULE, \ .n_voltages = ARRAY_SIZE(vreg##_table), \ .vsel_reg = PM8607_##vreg, \ .vsel_mask = ARRAY_SIZE(vreg##_table) - 1, \ .apply_reg = PM8607_##ureg, \ .apply_bit = (ubit), \ .enable_reg = PM8607_##ereg, \ .enable_mask = 1 << (ebit), \ }, \ .slope_double = (0), \ .vol_table = (unsigned int *)&vreg##_table, \ .vol_suspend = (unsigned int *)&vreg##_suspend_table, \ } #define PM8607_LDO(_id, vreg, shift, ereg, ebit) \ { \ .desc = { \ .name = "LDO" #_id, \ .ops = &pm8607_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PM8607_ID_LDO##_id, \ .owner = THIS_MODULE, \ .n_voltages = ARRAY_SIZE(LDO##_id##_table), \ .vsel_reg = PM8607_##vreg, \ .vsel_mask = (ARRAY_SIZE(LDO##_id##_table) - 1) << (shift), \ .enable_reg = PM8607_##ereg, \ .enable_mask = 1 << (ebit), \ }, \ .slope_double = (0), \ .vol_table = (unsigned int *)&LDO##_id##_table, \ .vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \ } static struct pm8607_regulator_info pm8607_regulator_info[] = { PM8607_DVC(BUCK1, GO, BIT(0), SUPPLIES_EN11, 0), PM8607_DVC(BUCK2, GO, BIT(1), SUPPLIES_EN11, 1), PM8607_DVC(BUCK3, GO, BIT(2), SUPPLIES_EN11, 2), PM8607_LDO(1, LDO1, 0, SUPPLIES_EN11, 3), PM8607_LDO(2, LDO2, 0, SUPPLIES_EN11, 4), PM8607_LDO(3, LDO3, 0, SUPPLIES_EN11, 5), PM8607_LDO(4, LDO4, 0, SUPPLIES_EN11, 6), PM8607_LDO(5, LDO5, 0, SUPPLIES_EN11, 7), PM8607_LDO(6, LDO6, 0, SUPPLIES_EN12, 0), PM8607_LDO(7, LDO7, 0, SUPPLIES_EN12, 1), PM8607_LDO(8, LDO8, 0, SUPPLIES_EN12, 2), PM8607_LDO(9, LDO9, 0, SUPPLIES_EN12, 3), PM8607_LDO(10, LDO10, 0, SUPPLIES_EN12, 4), PM8607_LDO(12, LDO12, 0, SUPPLIES_EN12, 5), PM8607_LDO(13, VIBRATOR_SET, 1, VIBRATOR_SET, 0), PM8607_LDO(14, LDO14, 0, SUPPLIES_EN12, 6), }; static struct pm8607_regulator_info pm8606_regulator_info[] = { PM8606_PREG(PREREGULATORB, 5), }; #ifdef CONFIG_OF static int pm8607_regulator_dt_init(struct platform_device *pdev, struct pm8607_regulator_info *info, struct regulator_config *config) { struct device_node *nproot, *np; nproot = of_node_get(pdev->dev.parent->of_node); if (!nproot) return -ENODEV; nproot = of_find_node_by_name(nproot, "regulators"); if (!nproot) { dev_err(&pdev->dev, "failed to find regulators node\n"); return -ENODEV; } for_each_child_of_node(nproot, np) { if (!of_node_cmp(np->name, info->desc.name)) { config->init_data = of_get_regulator_init_data(&pdev->dev, np); config->of_node = np; break; } } of_node_put(nproot); return 0; } #else #define pm8607_regulator_dt_init(x, y, z) (-1) #endif static int pm8607_regulator_probe(struct platform_device *pdev) { struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent); struct pm8607_regulator_info *info = NULL; struct regulator_init_data *pdata = dev_get_platdata(&pdev->dev); struct regulator_config config = { }; struct resource *res; int i; res = platform_get_resource(pdev, IORESOURCE_REG, 0); if (res) { /* There're resources in 88PM8607 regulator driver */ for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) { info = &pm8607_regulator_info[i]; if (info->desc.vsel_reg == res->start) break; } if (i == ARRAY_SIZE(pm8607_regulator_info)) { dev_err(&pdev->dev, "Failed to find regulator %llu\n", (unsigned long long)res->start); return -EINVAL; } } else { /* There's no resource in 88PM8606 PREG regulator driver */ info = &pm8606_regulator_info[0]; /* i is used to check regulator ID */ i = -1; } info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; info->i2c_8606 = (chip->id == CHIP_PM8607) ? chip->companion : chip->client; info->chip = chip; /* check DVC ramp slope double */ if ((i == PM8607_ID_BUCK3) && info->chip->buck3_double) info->slope_double = 1; config.dev = &pdev->dev; config.driver_data = info; if (pm8607_regulator_dt_init(pdev, info, &config)) if (pdata) config.init_data = pdata; if (chip->id == CHIP_PM8607) config.regmap = chip->regmap; else config.regmap = chip->regmap_companion; info->regulator = devm_regulator_register(&pdev->dev, &info->desc, &config); if (IS_ERR(info->regulator)) { dev_err(&pdev->dev, "failed to register regulator %s\n", info->desc.name); return PTR_ERR(info->regulator); } platform_set_drvdata(pdev, info); return 0; } static struct platform_device_id pm8607_regulator_driver_ids[] = { { .name = "88pm860x-regulator", .driver_data = 0, }, { .name = "88pm860x-preg", .driver_data = 0, }, { }, }; MODULE_DEVICE_TABLE(platform, pm8607_regulator_driver_ids); static struct platform_driver pm8607_regulator_driver = { .driver = { .name = "88pm860x-regulator", .owner = THIS_MODULE, }, .probe = pm8607_regulator_probe, .id_table = pm8607_regulator_driver_ids, }; static int __init pm8607_regulator_init(void) { return platform_driver_register(&pm8607_regulator_driver); } subsys_initcall(pm8607_regulator_init); static void __exit pm8607_regulator_exit(void) { platform_driver_unregister(&pm8607_regulator_driver); } module_exit(pm8607_regulator_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC"); MODULE_ALIAS("platform:88pm8607-regulator"); |