drivers/regulator/s2mps11.c

   1 /*
   2  * s2mps11.c
   3  *
   4  * Copyright (c) 2012-2014 Samsung Electronics Co., Ltd
   5  *              http://www.samsung.com
   6  *
   7  * This program is free software; you can redistribute  it and/or modify it
   8  * under  the terms of  the GNU General  Public License as published by the
   9  * Free Software Foundation;  either version 2 of the  License, or (at your
  10  * option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  */
  18
  19 #include <linux/bug.h>
  20 #include <linux/err.h>
  21 #include <linux/gpio.h>
  22 #include <linux/slab.h>
  23 #include <linux/module.h>
  24 #include <linux/of.h>
  25 #include <linux/regmap.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/regulator/driver.h>
  28 #include <linux/regulator/machine.h>
  29 #include <linux/regulator/of_regulator.h>
  30 #include <linux/of_gpio.h>
  31 #include <linux/mfd/samsung/core.h>
  32 #include <linux/mfd/samsung/s2mps11.h>
  33 #include <linux/mfd/samsung/s2mps13.h>
  34 #include <linux/mfd/samsung/s2mps14.h>
  35 #include <linux/mfd/samsung/s2mpu02.h>
  36
  37 struct s2mps11_info {
  38         unsigned int rdev_num;
  39         int ramp_delay2;
  40         int ramp_delay34;
  41         int ramp_delay5;
  42         int ramp_delay16;
  43         int ramp_delay7810;
  44         int ramp_delay9;
  45
  46         enum sec_device_type dev_type;
  47
  48         /*
  49          * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether
  50          * the suspend mode was enabled.
  51          */
  52         unsigned long long s2mps14_suspend_state:50;
  53
  54         /* Array of size rdev_num with GPIO-s for external sleep control */
  55         int *ext_control_gpio;
  56 };
  57
  58 static int get_ramp_delay(int ramp_delay)
  59 {
  60         unsigned char cnt = 0;
  61
  62         ramp_delay /= 6250;
  63
  64         while (true) {
  65                 ramp_delay = ramp_delay >> 1;
  66                 if (ramp_delay == 0)
  67                         break;
  68                 cnt++;
  69         }
  70
  71         if (cnt > 3)
  72                 cnt = 3;
  73
  74         return cnt;
  75 }
  76
  77 static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
  78                                    unsigned int old_selector,
  79                                    unsigned int new_selector)
  80 {
  81         struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
  82         unsigned int ramp_delay = 0;
  83         int old_volt, new_volt;
  84
  85         switch (rdev_get_id(rdev)) {
  86         case S2MPS11_BUCK2:
  87                 ramp_delay = s2mps11->ramp_delay2;
  88                 break;
  89         case S2MPS11_BUCK3:
  90         case S2MPS11_BUCK4:
  91                 ramp_delay = s2mps11->ramp_delay34;
  92                 break;
  93         case S2MPS11_BUCK5:
  94                 ramp_delay = s2mps11->ramp_delay5;
  95                 break;
  96         case S2MPS11_BUCK6:
  97         case S2MPS11_BUCK1:
  98                 ramp_delay = s2mps11->ramp_delay16;
  99                 break;
 100         case S2MPS11_BUCK7:
 101         case S2MPS11_BUCK8:
 102         case S2MPS11_BUCK10:
 103                 ramp_delay = s2mps11->ramp_delay7810;
 104                 break;
 105         case S2MPS11_BUCK9:
 106                 ramp_delay = s2mps11->ramp_delay9;
 107         }
 108
 109         if (ramp_delay == 0)
 110                 ramp_delay = rdev->desc->ramp_delay;
 111
 112         old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
 113         new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
 114
 115         return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
 116 }
 117
 118 static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
 119 {
 120         struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
 121         unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK;
 122         unsigned int ramp_enable = 1, enable_shift = 0;
 123         int ret;
 124
 125         switch (rdev_get_id(rdev)) {
 126         case S2MPS11_BUCK1:
 127                 if (ramp_delay > s2mps11->ramp_delay16)
 128                         s2mps11->ramp_delay16 = ramp_delay;
 129                 else
 130                         ramp_delay = s2mps11->ramp_delay16;
 131
 132                 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
 133                 break;
 134         case S2MPS11_BUCK2:
 135                 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT;
 136                 if (!ramp_delay) {
 137                         ramp_enable = 0;
 138                         break;
 139                 }
 140
 141                 s2mps11->ramp_delay2 = ramp_delay;
 142                 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT;
 143                 ramp_reg = S2MPS11_REG_RAMP;
 144                 break;
 145         case S2MPS11_BUCK3:
 146                 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT;
 147                 if (!ramp_delay) {
 148                         ramp_enable = 0;
 149                         break;
 150                 }
 151
 152                 if (ramp_delay > s2mps11->ramp_delay34)
 153                         s2mps11->ramp_delay34 = ramp_delay;
 154                 else
 155                         ramp_delay = s2mps11->ramp_delay34;
 156
 157                 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
 158                 ramp_reg = S2MPS11_REG_RAMP;
 159                 break;
 160         case S2MPS11_BUCK4:
 161                 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT;
 162                 if (!ramp_delay) {
 163                         ramp_enable = 0;
 164                         break;
 165                 }
 166
 167                 if (ramp_delay > s2mps11->ramp_delay34)
 168                         s2mps11->ramp_delay34 = ramp_delay;
 169                 else
 170                         ramp_delay = s2mps11->ramp_delay34;
 171
 172                 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
 173                 ramp_reg = S2MPS11_REG_RAMP;
 174                 break;
 175         case S2MPS11_BUCK5:
 176                 s2mps11->ramp_delay5 = ramp_delay;
 177                 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT;
 178                 break;
 179         case S2MPS11_BUCK6:
 180                 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT;
 181                 if (!ramp_delay) {
 182                         ramp_enable = 0;
 183                         break;
 184                 }
 185
 186                 if (ramp_delay > s2mps11->ramp_delay16)
 187                         s2mps11->ramp_delay16 = ramp_delay;
 188                 else
 189                         ramp_delay = s2mps11->ramp_delay16;
 190
 191                 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
 192                 break;
 193         case S2MPS11_BUCK7:
 194         case S2MPS11_BUCK8:
 195         case S2MPS11_BUCK10:
 196                 if (ramp_delay > s2mps11->ramp_delay7810)
 197                         s2mps11->ramp_delay7810 = ramp_delay;
 198                 else
 199                         ramp_delay = s2mps11->ramp_delay7810;
 200
 201                 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT;
 202                 break;
 203         case S2MPS11_BUCK9:
 204                 s2mps11->ramp_delay9 = ramp_delay;
 205                 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT;
 206                 break;
 207         default:
 208                 return 0;
 209         }
 210
 211         if (!ramp_enable)
 212                 goto ramp_disable;
 213
 214         /* Ramp delay can be enabled/disabled only for buck[2346] */
 215         if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 &&
 216                         rdev_get_id(rdev) <= S2MPS11_BUCK4) ||
 217                         rdev_get_id(rdev) == S2MPS11_BUCK6)  {
 218                 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
 219                                          1 << enable_shift, 1 << enable_shift);
 220                 if (ret) {
 221                         dev_err(&rdev->dev, "failed to enable ramp rate\n");
 222                         return ret;
 223                 }
 224         }
 225
 226         ramp_val = get_ramp_delay(ramp_delay);
 227
 228         return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift,
 229                                   ramp_val << ramp_shift);
 230
 231 ramp_disable:
 232         return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
 233                                   1 << enable_shift, 0);
 234 }
 235
 236 static struct regulator_ops s2mps11_ldo_ops = {
 237         .list_voltage           = regulator_list_voltage_linear,
 238         .map_voltage            = regulator_map_voltage_linear,
 239         .is_enabled             = regulator_is_enabled_regmap,
 240         .enable                 = regulator_enable_regmap,
 241         .disable                = regulator_disable_regmap,
 242         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 243         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 244         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 245 };
 246
 247 static struct regulator_ops s2mps11_buck_ops = {
 248         .list_voltage           = regulator_list_voltage_linear,
 249         .map_voltage            = regulator_map_voltage_linear,
 250         .is_enabled             = regulator_is_enabled_regmap,
 251         .enable                 = regulator_enable_regmap,
 252         .disable                = regulator_disable_regmap,
 253         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 254         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 255         .set_voltage_time_sel   = s2mps11_regulator_set_voltage_time_sel,
 256         .set_ramp_delay         = s2mps11_set_ramp_delay,
 257 };
 258
 259 #define regulator_desc_s2mps11_ldo(num, step) {         \
 260         .name           = "LDO"#num,                    \
 261         .id             = S2MPS11_LDO##num,             \
 262         .ops            = &s2mps11_ldo_ops,             \
 263         .type           = REGULATOR_VOLTAGE,            \
 264         .owner          = THIS_MODULE,                  \
 265         .min_uV         = MIN_800_MV,                   \
 266         .uV_step        = step,                         \
 267         .n_voltages     = S2MPS11_LDO_N_VOLTAGES,       \
 268         .vsel_reg       = S2MPS11_REG_L1CTRL + num - 1, \
 269         .vsel_mask      = S2MPS11_LDO_VSEL_MASK,        \
 270         .enable_reg     = S2MPS11_REG_L1CTRL + num - 1, \
 271         .enable_mask    = S2MPS11_ENABLE_MASK           \
 272 }
 273
 274 #define regulator_desc_s2mps11_buck1_4(num) {                   \
 275         .name           = "BUCK"#num,                           \
 276         .id             = S2MPS11_BUCK##num,                    \
 277         .ops            = &s2mps11_buck_ops,                    \
 278         .type           = REGULATOR_VOLTAGE,                    \
 279         .owner          = THIS_MODULE,                          \
 280         .min_uV         = MIN_600_MV,                           \
 281         .uV_step        = STEP_6_25_MV,                         \
 282         .n_voltages     = S2MPS11_BUCK_N_VOLTAGES,              \
 283         .ramp_delay     = S2MPS11_RAMP_DELAY,                   \
 284         .vsel_reg       = S2MPS11_REG_B1CTRL2 + (num - 1) * 2,  \
 285         .vsel_mask      = S2MPS11_BUCK_VSEL_MASK,               \
 286         .enable_reg     = S2MPS11_REG_B1CTRL1 + (num - 1) * 2,  \
 287         .enable_mask    = S2MPS11_ENABLE_MASK                   \
 288 }
 289
 290 #define regulator_desc_s2mps11_buck5 {                          \
 291         .name           = "BUCK5",                              \
 292         .id             = S2MPS11_BUCK5,                        \
 293         .ops            = &s2mps11_buck_ops,                    \
 294         .type           = REGULATOR_VOLTAGE,                    \
 295         .owner          = THIS_MODULE,                          \
 296         .min_uV         = MIN_600_MV,                           \
 297         .uV_step        = STEP_6_25_MV,                         \
 298         .n_voltages     = S2MPS11_BUCK_N_VOLTAGES,              \
 299         .ramp_delay     = S2MPS11_RAMP_DELAY,                   \
 300         .vsel_reg       = S2MPS11_REG_B5CTRL2,                  \
 301         .vsel_mask      = S2MPS11_BUCK_VSEL_MASK,               \
 302         .enable_reg     = S2MPS11_REG_B5CTRL1,                  \
 303         .enable_mask    = S2MPS11_ENABLE_MASK                   \
 304 }
 305
 306 #define regulator_desc_s2mps11_buck6_10(num, min, step) {       \
 307         .name           = "BUCK"#num,                           \
 308         .id             = S2MPS11_BUCK##num,                    \
 309         .ops            = &s2mps11_buck_ops,                    \
 310         .type           = REGULATOR_VOLTAGE,                    \
 311         .owner          = THIS_MODULE,                          \
 312         .min_uV         = min,                                  \
 313         .uV_step        = step,                                 \
 314         .n_voltages     = S2MPS11_BUCK_N_VOLTAGES,              \
 315         .ramp_delay     = S2MPS11_RAMP_DELAY,                   \
 316         .vsel_reg       = S2MPS11_REG_B6CTRL2 + (num - 6) * 2,  \
 317         .vsel_mask      = S2MPS11_BUCK_VSEL_MASK,               \
 318         .enable_reg     = S2MPS11_REG_B6CTRL1 + (num - 6) * 2,  \
 319         .enable_mask    = S2MPS11_ENABLE_MASK                   \
 320 }
 321
 322 static const struct regulator_desc s2mps11_regulators[] = {
 323         regulator_desc_s2mps11_ldo(1, STEP_25_MV),
 324         regulator_desc_s2mps11_ldo(2, STEP_50_MV),
 325         regulator_desc_s2mps11_ldo(3, STEP_50_MV),
 326         regulator_desc_s2mps11_ldo(4, STEP_50_MV),
 327         regulator_desc_s2mps11_ldo(5, STEP_50_MV),
 328         regulator_desc_s2mps11_ldo(6, STEP_25_MV),
 329         regulator_desc_s2mps11_ldo(7, STEP_50_MV),
 330         regulator_desc_s2mps11_ldo(8, STEP_50_MV),
 331         regulator_desc_s2mps11_ldo(9, STEP_50_MV),
 332         regulator_desc_s2mps11_ldo(10, STEP_50_MV),
 333         regulator_desc_s2mps11_ldo(11, STEP_25_MV),
 334         regulator_desc_s2mps11_ldo(12, STEP_50_MV),
 335         regulator_desc_s2mps11_ldo(13, STEP_50_MV),
 336         regulator_desc_s2mps11_ldo(14, STEP_50_MV),
 337         regulator_desc_s2mps11_ldo(15, STEP_50_MV),
 338         regulator_desc_s2mps11_ldo(16, STEP_50_MV),
 339         regulator_desc_s2mps11_ldo(17, STEP_50_MV),
 340         regulator_desc_s2mps11_ldo(18, STEP_50_MV),
 341         regulator_desc_s2mps11_ldo(19, STEP_50_MV),
 342         regulator_desc_s2mps11_ldo(20, STEP_50_MV),
 343         regulator_desc_s2mps11_ldo(21, STEP_50_MV),
 344         regulator_desc_s2mps11_ldo(22, STEP_25_MV),
 345         regulator_desc_s2mps11_ldo(23, STEP_25_MV),
 346         regulator_desc_s2mps11_ldo(24, STEP_50_MV),
 347         regulator_desc_s2mps11_ldo(25, STEP_50_MV),
 348         regulator_desc_s2mps11_ldo(26, STEP_50_MV),
 349         regulator_desc_s2mps11_ldo(27, STEP_25_MV),
 350         regulator_desc_s2mps11_ldo(28, STEP_50_MV),
 351         regulator_desc_s2mps11_ldo(29, STEP_50_MV),
 352         regulator_desc_s2mps11_ldo(30, STEP_50_MV),
 353         regulator_desc_s2mps11_ldo(31, STEP_50_MV),
 354         regulator_desc_s2mps11_ldo(32, STEP_50_MV),
 355         regulator_desc_s2mps11_ldo(33, STEP_50_MV),
 356         regulator_desc_s2mps11_ldo(34, STEP_50_MV),
 357         regulator_desc_s2mps11_ldo(35, STEP_50_MV),
 358         regulator_desc_s2mps11_ldo(36, STEP_50_MV),
 359         regulator_desc_s2mps11_ldo(37, STEP_50_MV),
 360         regulator_desc_s2mps11_ldo(38, STEP_50_MV),
 361         regulator_desc_s2mps11_buck1_4(1),
 362         regulator_desc_s2mps11_buck1_4(2),
 363         regulator_desc_s2mps11_buck1_4(3),
 364         regulator_desc_s2mps11_buck1_4(4),
 365         regulator_desc_s2mps11_buck5,
 366         regulator_desc_s2mps11_buck6_10(6, MIN_600_MV, STEP_6_25_MV),
 367         regulator_desc_s2mps11_buck6_10(7, MIN_600_MV, STEP_6_25_MV),
 368         regulator_desc_s2mps11_buck6_10(8, MIN_600_MV, STEP_6_25_MV),
 369         regulator_desc_s2mps11_buck6_10(9, MIN_3000_MV, STEP_25_MV),
 370         regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV),
 371 };
 372
 373 static struct regulator_ops s2mps14_reg_ops;
 374
 375 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) {   \
 376         .name           = "LDO"#num,                            \
 377         .id             = S2MPS13_LDO##num,                     \
 378         .ops            = &s2mps14_reg_ops,                     \
 379         .type           = REGULATOR_VOLTAGE,                    \
 380         .owner          = THIS_MODULE,                          \
 381         .min_uV         = min,                                  \
 382         .uV_step        = step,                                 \
 383         .linear_min_sel = min_sel,                              \
 384         .n_voltages     = S2MPS14_LDO_N_VOLTAGES,               \
 385         .vsel_reg       = S2MPS13_REG_L1CTRL + num - 1,         \
 386         .vsel_mask      = S2MPS14_LDO_VSEL_MASK,                \
 387         .enable_reg     = S2MPS13_REG_L1CTRL + num - 1,         \
 388         .enable_mask    = S2MPS14_ENABLE_MASK                   \
 389 }
 390
 391 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) {  \
 392         .name           = "BUCK"#num,                           \
 393         .id             = S2MPS13_BUCK##num,                    \
 394         .ops            = &s2mps14_reg_ops,                     \
 395         .type           = REGULATOR_VOLTAGE,                    \
 396         .owner          = THIS_MODULE,                          \
 397         .min_uV         = min,                                  \
 398         .uV_step        = step,                                 \
 399         .linear_min_sel = min_sel,                              \
 400         .n_voltages     = S2MPS14_BUCK_N_VOLTAGES,              \
 401         .ramp_delay     = S2MPS13_BUCK_RAMP_DELAY,              \
 402         .vsel_reg       = S2MPS13_REG_B1OUT + (num - 1) * 2,    \
 403         .vsel_mask      = S2MPS14_BUCK_VSEL_MASK,               \
 404         .enable_reg     = S2MPS13_REG_B1CTRL + (num - 1) * 2,   \
 405         .enable_mask    = S2MPS14_ENABLE_MASK                   \
 406 }
 407
 408 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \
 409         .name           = "BUCK"#num,                           \
 410         .id             = S2MPS13_BUCK##num,                    \
 411         .ops            = &s2mps14_reg_ops,                     \
 412         .type           = REGULATOR_VOLTAGE,                    \
 413         .owner          = THIS_MODULE,                          \
 414         .min_uV         = min,                                  \
 415         .uV_step        = step,                                 \
 416         .linear_min_sel = min_sel,                              \
 417         .n_voltages     = S2MPS14_BUCK_N_VOLTAGES,              \
 418         .ramp_delay     = S2MPS13_BUCK_RAMP_DELAY,              \
 419         .vsel_reg       = S2MPS13_REG_B1OUT + (num) * 2 - 1,    \
 420         .vsel_mask      = S2MPS14_BUCK_VSEL_MASK,               \
 421         .enable_reg     = S2MPS13_REG_B1CTRL + (num - 1) * 2,   \
 422         .enable_mask    = S2MPS14_ENABLE_MASK                   \
 423 }
 424
 425 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) {      \
 426         .name           = "BUCK"#num,                           \
 427         .id             = S2MPS13_BUCK##num,                    \
 428         .ops            = &s2mps14_reg_ops,                     \
 429         .type           = REGULATOR_VOLTAGE,                    \
 430         .owner          = THIS_MODULE,                          \
 431         .min_uV         = min,                                  \
 432         .uV_step        = step,                                 \
 433         .linear_min_sel = min_sel,                              \
 434         .n_voltages     = S2MPS14_BUCK_N_VOLTAGES,              \
 435         .ramp_delay     = S2MPS13_BUCK_RAMP_DELAY,              \
 436         .vsel_reg       = S2MPS13_REG_B1OUT + (num) * 2 - 1,    \
 437         .vsel_mask      = S2MPS14_BUCK_VSEL_MASK,               \
 438         .enable_reg     = S2MPS13_REG_B1CTRL + (num) * 2 - 1,   \
 439         .enable_mask    = S2MPS14_ENABLE_MASK                   \
 440 }
 441
 442 static const struct regulator_desc s2mps13_regulators[] = {
 443         regulator_desc_s2mps13_ldo(1,  MIN_800_MV,  STEP_12_5_MV, 0x00),
 444         regulator_desc_s2mps13_ldo(2,  MIN_1400_MV, STEP_50_MV,   0x0C),
 445         regulator_desc_s2mps13_ldo(3,  MIN_1000_MV, STEP_25_MV,   0x08),
 446         regulator_desc_s2mps13_ldo(4,  MIN_800_MV,  STEP_12_5_MV, 0x00),
 447         regulator_desc_s2mps13_ldo(5,  MIN_800_MV,  STEP_12_5_MV, 0x00),
 448         regulator_desc_s2mps13_ldo(6,  MIN_800_MV,  STEP_12_5_MV, 0x00),
 449         regulator_desc_s2mps13_ldo(7,  MIN_1000_MV, STEP_25_MV,   0x08),
 450         regulator_desc_s2mps13_ldo(8,  MIN_1000_MV, STEP_25_MV,   0x08),
 451         regulator_desc_s2mps13_ldo(9,  MIN_1000_MV, STEP_25_MV,   0x08),
 452         regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV,   0x0C),
 453         regulator_desc_s2mps13_ldo(11, MIN_800_MV,  STEP_25_MV,   0x10),
 454         regulator_desc_s2mps13_ldo(12, MIN_800_MV,  STEP_25_MV,   0x10),
 455         regulator_desc_s2mps13_ldo(13, MIN_800_MV,  STEP_25_MV,   0x10),
 456         regulator_desc_s2mps13_ldo(14, MIN_800_MV,  STEP_12_5_MV, 0x00),
 457         regulator_desc_s2mps13_ldo(15, MIN_800_MV,  STEP_12_5_MV, 0x00),
 458         regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV,   0x0C),
 459         regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV,   0x0C),
 460         regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV,   0x08),
 461         regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV,   0x08),
 462         regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV,   0x0C),
 463         regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV,   0x08),
 464         regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV,   0x08),
 465         regulator_desc_s2mps13_ldo(23, MIN_800_MV,  STEP_12_5_MV, 0x00),
 466         regulator_desc_s2mps13_ldo(24, MIN_800_MV,  STEP_12_5_MV, 0x00),
 467         regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV,   0x0C),
 468         regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV,   0x0C),
 469         regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV,   0x0C),
 470         regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV,   0x08),
 471         regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV,   0x0C),
 472         regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV,   0x0C),
 473         regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV,   0x08),
 474         regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV,   0x08),
 475         regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV,   0x0C),
 476         regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV,   0x08),
 477         regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV,   0x0C),
 478         regulator_desc_s2mps13_ldo(36, MIN_800_MV,  STEP_12_5_MV, 0x00),
 479         regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV,   0x08),
 480         regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV,   0x0C),
 481         regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV,   0x08),
 482         regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV,   0x0C),
 483         regulator_desc_s2mps13_buck(1,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 484         regulator_desc_s2mps13_buck(2,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 485         regulator_desc_s2mps13_buck(3,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 486         regulator_desc_s2mps13_buck(4,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 487         regulator_desc_s2mps13_buck(5,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 488         regulator_desc_s2mps13_buck(6,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 489         regulator_desc_s2mps13_buck7(7,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 490         regulator_desc_s2mps13_buck8_10(8,  MIN_1000_MV, STEP_12_5_MV, 0x20),
 491         regulator_desc_s2mps13_buck8_10(9,  MIN_1000_MV, STEP_12_5_MV, 0x20),
 492         regulator_desc_s2mps13_buck8_10(10, MIN_500_MV,  STEP_6_25_MV, 0x10),
 493 };
 494
 495 static int s2mps14_regulator_enable(struct regulator_dev *rdev)
 496 {
 497         struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
 498         unsigned int val;
 499
 500         switch (s2mps11->dev_type) {
 501         case S2MPS13X:
 502         case S2MPS14X:
 503                 if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))
 504                         val = S2MPS14_ENABLE_SUSPEND;
 505                 else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)]))
 506                         val = S2MPS14_ENABLE_EXT_CONTROL;
 507                 else
 508                         val = rdev->desc->enable_mask;
 509                 break;
 510         case S2MPU02:
 511                 if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))
 512                         val = S2MPU02_ENABLE_SUSPEND;
 513                 else
 514                         val = rdev->desc->enable_mask;
 515                 break;
 516         default:
 517                 return -EINVAL;
 518         };
 519
 520         return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
 521                         rdev->desc->enable_mask, val);
 522 }
 523
 524 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev)
 525 {
 526         int ret;
 527         unsigned int val, state;
 528         struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
 529         int rdev_id = rdev_get_id(rdev);
 530
 531         /* Below LDO should be always on or does not support suspend mode. */
 532         switch (s2mps11->dev_type) {
 533         case S2MPS13X:
 534         case S2MPS14X:
 535                 switch (rdev_id) {
 536                 case S2MPS14_LDO3:
 537                         return 0;
 538                 default:
 539                         state = S2MPS14_ENABLE_SUSPEND;
 540                         break;
 541                 };
 542                 break;
 543         case S2MPU02:
 544                 switch (rdev_id) {
 545                 case S2MPU02_LDO13:
 546                 case S2MPU02_LDO14:
 547                 case S2MPU02_LDO15:
 548                 case S2MPU02_LDO17:
 549                 case S2MPU02_BUCK7:
 550                         state = S2MPU02_DISABLE_SUSPEND;
 551                         break;
 552                 default:
 553                         state = S2MPU02_ENABLE_SUSPEND;
 554                         break;
 555                 };
 556                 break;
 557         default:
 558                 return -EINVAL;
 559         };
 560
 561         ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
 562         if (ret < 0)
 563                 return ret;
 564
 565         s2mps11->s2mps14_suspend_state |= (1 << rdev_get_id(rdev));
 566         /*
 567          * Don't enable suspend mode if regulator is already disabled because
 568          * this would effectively for a short time turn on the regulator after
 569          * resuming.
 570          * However we still want to toggle the suspend_state bit for regulator
 571          * in case if it got enabled before suspending the system.
 572          */
 573         if (!(val & rdev->desc->enable_mask))
 574                 return 0;
 575
 576         return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
 577                         rdev->desc->enable_mask, state);
 578 }
 579
 580 static struct regulator_ops s2mps14_reg_ops = {
 581         .list_voltage           = regulator_list_voltage_linear,
 582         .map_voltage            = regulator_map_voltage_linear,
 583         .is_enabled             = regulator_is_enabled_regmap,
 584         .enable                 = s2mps14_regulator_enable,
 585         .disable                = regulator_disable_regmap,
 586         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 587         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 588         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 589         .set_suspend_disable    = s2mps14_regulator_set_suspend_disable,
 590 };
 591
 592 #define regulator_desc_s2mps14_ldo(num, min, step) {    \
 593         .name           = "LDO"#num,                    \
 594         .id             = S2MPS14_LDO##num,             \
 595         .ops            = &s2mps14_reg_ops,             \
 596         .type           = REGULATOR_VOLTAGE,            \
 597         .owner          = THIS_MODULE,                  \
 598         .min_uV         = min,                          \
 599         .uV_step        = step,                         \
 600         .n_voltages     = S2MPS14_LDO_N_VOLTAGES,       \
 601         .vsel_reg       = S2MPS14_REG_L1CTRL + num - 1, \
 602         .vsel_mask      = S2MPS14_LDO_VSEL_MASK,        \
 603         .enable_reg     = S2MPS14_REG_L1CTRL + num - 1, \
 604         .enable_mask    = S2MPS14_ENABLE_MASK           \
 605 }
 606
 607 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) {  \
 608         .name           = "BUCK"#num,                           \
 609         .id             = S2MPS14_BUCK##num,                    \
 610         .ops            = &s2mps14_reg_ops,                     \
 611         .type           = REGULATOR_VOLTAGE,                    \
 612         .owner          = THIS_MODULE,                          \
 613         .min_uV         = min,                                  \
 614         .uV_step        = step,                                 \
 615         .n_voltages     = S2MPS14_BUCK_N_VOLTAGES,              \
 616         .linear_min_sel = min_sel,                              \
 617         .ramp_delay     = S2MPS14_BUCK_RAMP_DELAY,              \
 618         .vsel_reg       = S2MPS14_REG_B1CTRL2 + (num - 1) * 2,  \
 619         .vsel_mask      = S2MPS14_BUCK_VSEL_MASK,               \
 620         .enable_reg     = S2MPS14_REG_B1CTRL1 + (num - 1) * 2,  \
 621         .enable_mask    = S2MPS14_ENABLE_MASK                   \
 622 }
 623
 624 static const struct regulator_desc s2mps14_regulators[] = {
 625         regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV),
 626         regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV),
 627         regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV),
 628         regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV),
 629         regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV),
 630         regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV),
 631         regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV),
 632         regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV),
 633         regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV),
 634         regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV),
 635         regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV),
 636         regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV),
 637         regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV),
 638         regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV),
 639         regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV),
 640         regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV),
 641         regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV),
 642         regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV),
 643         regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV),
 644         regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV),
 645         regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV),
 646         regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV),
 647         regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV),
 648         regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV),
 649         regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV),
 650         regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV,
 651                                     S2MPS14_BUCK1235_START_SEL),
 652         regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV,
 653                                     S2MPS14_BUCK1235_START_SEL),
 654         regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV,
 655                                     S2MPS14_BUCK1235_START_SEL),
 656         regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV,
 657                                     S2MPS14_BUCK4_START_SEL),
 658         regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV,
 659                                     S2MPS14_BUCK1235_START_SEL),
 660 };
 661
 662 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
 663                 struct regulator_dev *rdev)
 664 {
 665         return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
 666                         rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL);
 667 }
 668
 669 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev,
 670                 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
 671 {
 672         int *gpio = s2mps11->ext_control_gpio;
 673         unsigned int i;
 674         unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11,
 675                 S2MPS14_LDO12 };
 676
 677         for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) {
 678                 unsigned int reg = valid_regulators[i];
 679
 680                 if (!rdata[reg].init_data || !rdata[reg].of_node)
 681                         continue;
 682
 683                 gpio[reg] = of_get_named_gpio(rdata[reg].of_node,
 684                                 "samsung,ext-control-gpios", 0);
 685                 if (gpio_is_valid(gpio[reg]))
 686                         dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n",
 687                                         gpio[reg], reg, rdata[reg].name);
 688         }
 689 }
 690
 691 static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
 692                 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
 693 {
 694         struct device_node *reg_np;
 695
 696         reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
 697         if (!reg_np) {
 698                 dev_err(&pdev->dev, "could not find regulators sub-node\n");
 699                 return -EINVAL;
 700         }
 701
 702         of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num);
 703         if (s2mps11->dev_type == S2MPS14X)
 704                 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11);
 705
 706         of_node_put(reg_np);
 707
 708         return 0;
 709 }
 710
 711 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
 712 {
 713         unsigned int ramp_val, ramp_shift, ramp_reg;
 714
 715         switch (rdev_get_id(rdev)) {
 716         case S2MPU02_BUCK1:
 717                 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT;
 718                 break;
 719         case S2MPU02_BUCK2:
 720                 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT;
 721                 break;
 722         case S2MPU02_BUCK3:
 723                 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT;
 724                 break;
 725         case S2MPU02_BUCK4:
 726                 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT;
 727                 break;
 728         default:
 729                 return 0;
 730         }
 731         ramp_reg = S2MPU02_REG_RAMP1;
 732         ramp_val = get_ramp_delay(ramp_delay);
 733
 734         return regmap_update_bits(rdev->regmap, ramp_reg,
 735                                   S2MPU02_BUCK1234_RAMP_MASK << ramp_shift,
 736                                   ramp_val << ramp_shift);
 737 }
 738
 739 static struct regulator_ops s2mpu02_ldo_ops = {
 740         .list_voltage           = regulator_list_voltage_linear,
 741         .map_voltage            = regulator_map_voltage_linear,
 742         .is_enabled             = regulator_is_enabled_regmap,
 743         .enable                 = s2mps14_regulator_enable,
 744         .disable                = regulator_disable_regmap,
 745         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 746         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 747         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 748         .set_suspend_disable    = s2mps14_regulator_set_suspend_disable,
 749 };
 750
 751 static struct regulator_ops s2mpu02_buck_ops = {
 752         .list_voltage           = regulator_list_voltage_linear,
 753         .map_voltage            = regulator_map_voltage_linear,
 754         .is_enabled             = regulator_is_enabled_regmap,
 755         .enable                 = s2mps14_regulator_enable,
 756         .disable                = regulator_disable_regmap,
 757         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 758         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 759         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 760         .set_suspend_disable    = s2mps14_regulator_set_suspend_disable,
 761         .set_ramp_delay         = s2mpu02_set_ramp_delay,
 762 };
 763
 764 #define regulator_desc_s2mpu02_ldo1(num) {              \
 765         .name           = "LDO"#num,                    \
 766         .id             = S2MPU02_LDO##num,             \
 767         .ops            = &s2mpu02_ldo_ops,             \
 768         .type           = REGULATOR_VOLTAGE,            \
 769         .owner          = THIS_MODULE,                  \
 770         .min_uV         = S2MPU02_LDO_MIN_900MV,        \
 771         .uV_step        = S2MPU02_LDO_STEP_12_5MV,      \
 772         .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
 773         .n_voltages     = S2MPU02_LDO_N_VOLTAGES,       \
 774         .vsel_reg       = S2MPU02_REG_L1CTRL,           \
 775         .vsel_mask      = S2MPU02_LDO_VSEL_MASK,        \
 776         .enable_reg     = S2MPU02_REG_L1CTRL,           \
 777         .enable_mask    = S2MPU02_ENABLE_MASK           \
 778 }
 779 #define regulator_desc_s2mpu02_ldo2(num) {              \
 780         .name           = "LDO"#num,                    \
 781         .id             = S2MPU02_LDO##num,             \
 782         .ops            = &s2mpu02_ldo_ops,             \
 783         .type           = REGULATOR_VOLTAGE,            \
 784         .owner          = THIS_MODULE,                  \
 785         .min_uV         = S2MPU02_LDO_MIN_1050MV,       \
 786         .uV_step        = S2MPU02_LDO_STEP_25MV,        \
 787         .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
 788         .n_voltages     = S2MPU02_LDO_N_VOLTAGES,       \
 789         .vsel_reg       = S2MPU02_REG_L2CTRL1,          \
 790         .vsel_mask      = S2MPU02_LDO_VSEL_MASK,        \
 791         .enable_reg     = S2MPU02_REG_L2CTRL1,          \
 792         .enable_mask    = S2MPU02_ENABLE_MASK           \
 793 }
 794 #define regulator_desc_s2mpu02_ldo3(num) {              \
 795         .name           = "LDO"#num,                    \
 796         .id             = S2MPU02_LDO##num,             \
 797         .ops            = &s2mpu02_ldo_ops,             \
 798         .type           = REGULATOR_VOLTAGE,            \
 799         .owner          = THIS_MODULE,                  \
 800         .min_uV         = S2MPU02_LDO_MIN_900MV,        \
 801         .uV_step        = S2MPU02_LDO_STEP_12_5MV,      \
 802         .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
 803         .n_voltages     = S2MPU02_LDO_N_VOLTAGES,       \
 804         .vsel_reg       = S2MPU02_REG_L3CTRL + num - 3, \
 805         .vsel_mask      = S2MPU02_LDO_VSEL_MASK,        \
 806         .enable_reg     = S2MPU02_REG_L3CTRL + num - 3, \
 807         .enable_mask    = S2MPU02_ENABLE_MASK           \
 808 }
 809 #define regulator_desc_s2mpu02_ldo4(num) {              \
 810         .name           = "LDO"#num,                    \
 811         .id             = S2MPU02_LDO##num,             \
 812         .ops            = &s2mpu02_ldo_ops,             \
 813         .type           = REGULATOR_VOLTAGE,            \
 814         .owner          = THIS_MODULE,                  \
 815         .min_uV         = S2MPU02_LDO_MIN_1050MV,       \
 816         .uV_step        = S2MPU02_LDO_STEP_25MV,        \
 817         .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
 818         .n_voltages     = S2MPU02_LDO_N_VOLTAGES,       \
 819         .vsel_reg       = S2MPU02_REG_L3CTRL + num - 3, \
 820         .vsel_mask      = S2MPU02_LDO_VSEL_MASK,        \
 821         .enable_reg     = S2MPU02_REG_L3CTRL + num - 3, \
 822         .enable_mask    = S2MPU02_ENABLE_MASK           \
 823 }
 824 #define regulator_desc_s2mpu02_ldo5(num) {              \
 825         .name           = "LDO"#num,                    \
 826         .id             = S2MPU02_LDO##num,             \
 827         .ops            = &s2mpu02_ldo_ops,             \
 828         .type           = REGULATOR_VOLTAGE,            \
 829         .owner          = THIS_MODULE,                  \
 830         .min_uV         = S2MPU02_LDO_MIN_1600MV,       \
 831         .uV_step        = S2MPU02_LDO_STEP_50MV,        \
 832         .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \
 833         .n_voltages     = S2MPU02_LDO_N_VOLTAGES,       \
 834         .vsel_reg       = S2MPU02_REG_L3CTRL + num - 3, \
 835         .vsel_mask      = S2MPU02_LDO_VSEL_MASK,        \
 836         .enable_reg     = S2MPU02_REG_L3CTRL + num - 3, \
 837         .enable_mask    = S2MPU02_ENABLE_MASK           \
 838 }
 839
 840 #define regulator_desc_s2mpu02_buck1234(num) {                  \
 841         .name           = "BUCK"#num,                           \
 842         .id             = S2MPU02_BUCK##num,                    \
 843         .ops            = &s2mpu02_buck_ops,                    \
 844         .type           = REGULATOR_VOLTAGE,                    \
 845         .owner          = THIS_MODULE,                          \
 846         .min_uV         = S2MPU02_BUCK1234_MIN_600MV,           \
 847         .uV_step        = S2MPU02_BUCK1234_STEP_6_25MV,         \
 848         .n_voltages     = S2MPU02_BUCK_N_VOLTAGES,              \
 849         .linear_min_sel = S2MPU02_BUCK1234_START_SEL,           \
 850         .ramp_delay     = S2MPU02_BUCK_RAMP_DELAY,              \
 851         .vsel_reg       = S2MPU02_REG_B1CTRL2 + (num - 1) * 2,  \
 852         .vsel_mask      = S2MPU02_BUCK_VSEL_MASK,               \
 853         .enable_reg     = S2MPU02_REG_B1CTRL1 + (num - 1) * 2,  \
 854         .enable_mask    = S2MPU02_ENABLE_MASK                   \
 855 }
 856 #define regulator_desc_s2mpu02_buck5(num) {                     \
 857         .name           = "BUCK"#num,                           \
 858         .id             = S2MPU02_BUCK##num,                    \
 859         .ops            = &s2mpu02_ldo_ops,                     \
 860         .type           = REGULATOR_VOLTAGE,                    \
 861         .owner          = THIS_MODULE,                          \
 862         .min_uV         = S2MPU02_BUCK5_MIN_1081_25MV,          \
 863         .uV_step        = S2MPU02_BUCK5_STEP_6_25MV,            \
 864         .n_voltages     = S2MPU02_BUCK_N_VOLTAGES,              \
 865         .linear_min_sel = S2MPU02_BUCK5_START_SEL,              \
 866         .ramp_delay     = S2MPU02_BUCK_RAMP_DELAY,              \
 867         .vsel_reg       = S2MPU02_REG_B5CTRL2,                  \
 868         .vsel_mask      = S2MPU02_BUCK_VSEL_MASK,               \
 869         .enable_reg     = S2MPU02_REG_B5CTRL1,                  \
 870         .enable_mask    = S2MPU02_ENABLE_MASK                   \
 871 }
 872 #define regulator_desc_s2mpu02_buck6(num) {                     \
 873         .name           = "BUCK"#num,                           \
 874         .id             = S2MPU02_BUCK##num,                    \
 875         .ops            = &s2mpu02_ldo_ops,                     \
 876         .type           = REGULATOR_VOLTAGE,                    \
 877         .owner          = THIS_MODULE,                          \
 878         .min_uV         = S2MPU02_BUCK6_MIN_1700MV,             \
 879         .uV_step        = S2MPU02_BUCK6_STEP_2_50MV,            \
 880         .n_voltages     = S2MPU02_BUCK_N_VOLTAGES,              \
 881         .linear_min_sel = S2MPU02_BUCK6_START_SEL,              \
 882         .ramp_delay     = S2MPU02_BUCK_RAMP_DELAY,              \
 883         .vsel_reg       = S2MPU02_REG_B6CTRL2,                  \
 884         .vsel_mask      = S2MPU02_BUCK_VSEL_MASK,               \
 885         .enable_reg     = S2MPU02_REG_B6CTRL1,                  \
 886         .enable_mask    = S2MPU02_ENABLE_MASK                   \
 887 }
 888 #define regulator_desc_s2mpu02_buck7(num) {                     \
 889         .name           = "BUCK"#num,                           \
 890         .id             = S2MPU02_BUCK##num,                    \
 891         .ops            = &s2mpu02_ldo_ops,                     \
 892         .type           = REGULATOR_VOLTAGE,                    \
 893         .owner          = THIS_MODULE,                          \
 894         .min_uV         = S2MPU02_BUCK7_MIN_900MV,              \
 895         .uV_step        = S2MPU02_BUCK7_STEP_6_25MV,            \
 896         .n_voltages     = S2MPU02_BUCK_N_VOLTAGES,              \
 897         .linear_min_sel = S2MPU02_BUCK7_START_SEL,              \
 898         .ramp_delay     = S2MPU02_BUCK_RAMP_DELAY,              \
 899         .vsel_reg       = S2MPU02_REG_B7CTRL2,                  \
 900         .vsel_mask      = S2MPU02_BUCK_VSEL_MASK,               \
 901         .enable_reg     = S2MPU02_REG_B7CTRL1,                  \
 902         .enable_mask    = S2MPU02_ENABLE_MASK                   \
 903 }
 904
 905 static const struct regulator_desc s2mpu02_regulators[] = {
 906         regulator_desc_s2mpu02_ldo1(1),
 907         regulator_desc_s2mpu02_ldo2(2),
 908         regulator_desc_s2mpu02_ldo4(3),
 909         regulator_desc_s2mpu02_ldo5(4),
 910         regulator_desc_s2mpu02_ldo4(5),
 911         regulator_desc_s2mpu02_ldo3(6),
 912         regulator_desc_s2mpu02_ldo3(7),
 913         regulator_desc_s2mpu02_ldo4(8),
 914         regulator_desc_s2mpu02_ldo5(9),
 915         regulator_desc_s2mpu02_ldo3(10),
 916         regulator_desc_s2mpu02_ldo4(11),
 917         regulator_desc_s2mpu02_ldo5(12),
 918         regulator_desc_s2mpu02_ldo5(13),
 919         regulator_desc_s2mpu02_ldo5(14),
 920         regulator_desc_s2mpu02_ldo5(15),
 921         regulator_desc_s2mpu02_ldo5(16),
 922         regulator_desc_s2mpu02_ldo4(17),
 923         regulator_desc_s2mpu02_ldo5(18),
 924         regulator_desc_s2mpu02_ldo3(19),
 925         regulator_desc_s2mpu02_ldo4(20),
 926         regulator_desc_s2mpu02_ldo5(21),
 927         regulator_desc_s2mpu02_ldo5(22),
 928         regulator_desc_s2mpu02_ldo5(23),
 929         regulator_desc_s2mpu02_ldo4(24),
 930         regulator_desc_s2mpu02_ldo5(25),
 931         regulator_desc_s2mpu02_ldo4(26),
 932         regulator_desc_s2mpu02_ldo5(27),
 933         regulator_desc_s2mpu02_ldo5(28),
 934         regulator_desc_s2mpu02_buck1234(1),
 935         regulator_desc_s2mpu02_buck1234(2),
 936         regulator_desc_s2mpu02_buck1234(3),
 937         regulator_desc_s2mpu02_buck1234(4),
 938         regulator_desc_s2mpu02_buck5(5),
 939         regulator_desc_s2mpu02_buck6(6),
 940         regulator_desc_s2mpu02_buck7(7),
 941 };
 942
 943 static int s2mps11_pmic_probe(struct platform_device *pdev)
 944 {
 945         struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
 946         struct sec_platform_data *pdata = NULL;
 947         struct of_regulator_match *rdata = NULL;
 948         struct regulator_config config = { };
 949         struct s2mps11_info *s2mps11;
 950         int i, ret = 0;
 951         const struct regulator_desc *regulators;
 952
 953         s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
 954                                 GFP_KERNEL);
 955         if (!s2mps11)
 956                 return -ENOMEM;
 957
 958         s2mps11->dev_type = platform_get_device_id(pdev)->driver_data;
 959         switch (s2mps11->dev_type) {
 960         case S2MPS11X:
 961                 s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators);
 962                 regulators = s2mps11_regulators;
 963                 break;
 964         case S2MPS13X:
 965                 s2mps11->rdev_num = ARRAY_SIZE(s2mps13_regulators);
 966                 regulators = s2mps13_regulators;
 967                 break;
 968         case S2MPS14X:
 969                 s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators);
 970                 regulators = s2mps14_regulators;
 971                 break;
 972         case S2MPU02:
 973                 s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators);
 974                 regulators = s2mpu02_regulators;
 975                 break;
 976         default:
 977                 dev_err(&pdev->dev, "Invalid device type: %u\n",
 978                                     s2mps11->dev_type);
 979                 return -EINVAL;
 980         };
 981
 982         s2mps11->ext_control_gpio = devm_kmalloc(&pdev->dev,
 983                         sizeof(*s2mps11->ext_control_gpio) * s2mps11->rdev_num,
 984                         GFP_KERNEL);
 985         if (!s2mps11->ext_control_gpio)
 986                 return -ENOMEM;
 987         /*
 988          * 0 is a valid GPIO so initialize all GPIO-s to negative value
 989          * to indicate that external control won't be used for this regulator.
 990          */
 991         for (i = 0; i < s2mps11->rdev_num; i++)
 992                 s2mps11->ext_control_gpio[i] = -EINVAL;
 993
 994         if (!iodev->dev->of_node) {
 995                 if (iodev->pdata) {
 996                         pdata = iodev->pdata;
 997                         goto common_reg;
 998                 } else {
 999                         dev_err(pdev->dev.parent,
1000                                 "Platform data or DT node not supplied\n");
1001                         return -ENODEV;
1002                 }
1003         }
1004
1005         rdata = kzalloc(sizeof(*rdata) * s2mps11->rdev_num, GFP_KERNEL);
1006         if (!rdata)
1007                 return -ENOMEM;
1008
1009         for (i = 0; i < s2mps11->rdev_num; i++)
1010                 rdata[i].name = regulators[i].name;
1011
1012         ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11);
1013         if (ret)
1014                 goto out;
1015
1016 common_reg:
1017         platform_set_drvdata(pdev, s2mps11);
1018
1019         config.dev = &pdev->dev;
1020         config.regmap = iodev->regmap_pmic;
1021         config.driver_data = s2mps11;
1022         config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH;
1023         config.ena_gpio_initialized = true;
1024         for (i = 0; i < s2mps11->rdev_num; i++) {
1025                 struct regulator_dev *regulator;
1026
1027                 if (pdata) {
1028                         config.init_data = pdata->regulators[i].initdata;
1029                         config.of_node = pdata->regulators[i].reg_node;
1030                 } else {
1031                         config.init_data = rdata[i].init_data;
1032                         config.of_node = rdata[i].of_node;
1033                 }
1034                 config.ena_gpio = s2mps11->ext_control_gpio[i];
1035
1036                 regulator = devm_regulator_register(&pdev->dev,
1037                                                 &regulators[i], &config);
1038                 if (IS_ERR(regulator)) {
1039                         ret = PTR_ERR(regulator);
1040                         dev_err(&pdev->dev, "regulator init failed for %d\n",
1041                                 i);
1042                         goto out;
1043                 }
1044
1045                 if (gpio_is_valid(s2mps11->ext_control_gpio[i])) {
1046                         ret = s2mps14_pmic_enable_ext_control(s2mps11,
1047                                         regulator);
1048                         if (ret < 0) {
1049                                 dev_err(&pdev->dev,
1050                                                 "failed to enable GPIO control over %s: %d\n",
1051                                                 regulator->desc->name, ret);
1052                                 goto out;
1053                         }
1054                 }
1055         }
1056
1057 out:
1058         kfree(rdata);
1059
1060         return ret;
1061 }
1062
1063 static const struct platform_device_id s2mps11_pmic_id[] = {
1064         { "s2mps11-pmic", S2MPS11X},
1065         { "s2mps13-pmic", S2MPS13X},
1066         { "s2mps14-pmic", S2MPS14X},
1067         { "s2mpu02-pmic", S2MPU02},
1068         { },
1069 };
1070 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
1071
1072 static struct platform_driver s2mps11_pmic_driver = {
1073         .driver = {
1074                 .name = "s2mps11-pmic",
1075         },
1076         .probe = s2mps11_pmic_probe,
1077         .id_table = s2mps11_pmic_id,
1078 };
1079
1080 static int __init s2mps11_pmic_init(void)
1081 {
1082         return platform_driver_register(&s2mps11_pmic_driver);
1083 }
1084 subsys_initcall(s2mps11_pmic_init);
1085
1086 static void __exit s2mps11_pmic_exit(void)
1087 {
1088         platform_driver_unregister(&s2mps11_pmic_driver);
1089 }
1090 module_exit(s2mps11_pmic_exit);
1091
1092 /* Module information */
1093 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
1094 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPU02 Regulator Driver");
1095 MODULE_LICENSE("GPL");