drivers/regulator/s2mps11.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 //
   3 // Copyright (c) 2012-2014 Samsung Electronics Co., Ltd
   4 //              http://www.samsung.com
   5
   6 #include <linux/bug.h>
   7 #include <linux/err.h>
   8 #include <linux/gpio/consumer.h>
   9 #include <linux/slab.h>
  10 #include <linux/module.h>
  11 #include <linux/of.h>
  12 #include <linux/regmap.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/regulator/driver.h>
  15 #include <linux/regulator/machine.h>
  16 #include <linux/regulator/of_regulator.h>
  17 #include <linux/mfd/samsung/core.h>
  18 #include <linux/mfd/samsung/s2mps11.h>
  19 #include <linux/mfd/samsung/s2mps13.h>
  20 #include <linux/mfd/samsung/s2mps14.h>
  21 #include <linux/mfd/samsung/s2mps15.h>
  22 #include <linux/mfd/samsung/s2mpu02.h>
  23
  24 /* The highest number of possible regulators for supported devices. */
  25 #define S2MPS_REGULATOR_MAX             S2MPS13_REGULATOR_MAX
  26 struct s2mps11_info {
  27         int ramp_delay2;
  28         int ramp_delay34;
  29         int ramp_delay5;
  30         int ramp_delay16;
  31         int ramp_delay7810;
  32         int ramp_delay9;
  33
  34         enum sec_device_type dev_type;
  35
  36         /*
  37          * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether
  38          * the suspend mode was enabled.
  39          */
  40         DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX);
  41
  42         /*
  43          * Array (size: number of regulators) with GPIO-s for external
  44          * sleep control.
  45          */
  46         struct gpio_desc **ext_control_gpiod;
  47 };
  48
  49 static int get_ramp_delay(int ramp_delay)
  50 {
  51         unsigned char cnt = 0;
  52
  53         ramp_delay /= 6250;
  54
  55         while (true) {
  56                 ramp_delay = ramp_delay >> 1;
  57                 if (ramp_delay == 0)
  58                         break;
  59                 cnt++;
  60         }
  61
  62         if (cnt > 3)
  63                 cnt = 3;
  64
  65         return cnt;
  66 }
  67
  68 static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
  69                                    unsigned int old_selector,
  70                                    unsigned int new_selector)
  71 {
  72         struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
  73         unsigned int ramp_delay = 0;
  74         int old_volt, new_volt;
  75
  76         switch (rdev_get_id(rdev)) {
  77         case S2MPS11_BUCK2:
  78                 ramp_delay = s2mps11->ramp_delay2;
  79                 break;
  80         case S2MPS11_BUCK3:
  81         case S2MPS11_BUCK4:
  82                 ramp_delay = s2mps11->ramp_delay34;
  83                 break;
  84         case S2MPS11_BUCK5:
  85                 ramp_delay = s2mps11->ramp_delay5;
  86                 break;
  87         case S2MPS11_BUCK6:
  88         case S2MPS11_BUCK1:
  89                 ramp_delay = s2mps11->ramp_delay16;
  90                 break;
  91         case S2MPS11_BUCK7:
  92         case S2MPS11_BUCK8:
  93         case S2MPS11_BUCK10:
  94                 ramp_delay = s2mps11->ramp_delay7810;
  95                 break;
  96         case S2MPS11_BUCK9:
  97                 ramp_delay = s2mps11->ramp_delay9;
  98         }
  99
 100         if (ramp_delay == 0)
 101                 ramp_delay = rdev->desc->ramp_delay;
 102
 103         old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
 104         new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
 105
 106         return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
 107 }
 108
 109 static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
 110 {
 111         struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
 112         unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK;
 113         unsigned int ramp_enable = 1, enable_shift = 0;
 114         int ret;
 115
 116         switch (rdev_get_id(rdev)) {
 117         case S2MPS11_BUCK1:
 118                 if (ramp_delay > s2mps11->ramp_delay16)
 119                         s2mps11->ramp_delay16 = ramp_delay;
 120                 else
 121                         ramp_delay = s2mps11->ramp_delay16;
 122
 123                 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
 124                 break;
 125         case S2MPS11_BUCK2:
 126                 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT;
 127                 if (!ramp_delay) {
 128                         ramp_enable = 0;
 129                         break;
 130                 }
 131
 132                 s2mps11->ramp_delay2 = ramp_delay;
 133                 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT;
 134                 ramp_reg = S2MPS11_REG_RAMP;
 135                 break;
 136         case S2MPS11_BUCK3:
 137                 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT;
 138                 if (!ramp_delay) {
 139                         ramp_enable = 0;
 140                         break;
 141                 }
 142
 143                 if (ramp_delay > s2mps11->ramp_delay34)
 144                         s2mps11->ramp_delay34 = ramp_delay;
 145                 else
 146                         ramp_delay = s2mps11->ramp_delay34;
 147
 148                 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
 149                 ramp_reg = S2MPS11_REG_RAMP;
 150                 break;
 151         case S2MPS11_BUCK4:
 152                 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT;
 153                 if (!ramp_delay) {
 154                         ramp_enable = 0;
 155                         break;
 156                 }
 157
 158                 if (ramp_delay > s2mps11->ramp_delay34)
 159                         s2mps11->ramp_delay34 = ramp_delay;
 160                 else
 161                         ramp_delay = s2mps11->ramp_delay34;
 162
 163                 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
 164                 ramp_reg = S2MPS11_REG_RAMP;
 165                 break;
 166         case S2MPS11_BUCK5:
 167                 s2mps11->ramp_delay5 = ramp_delay;
 168                 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT;
 169                 break;
 170         case S2MPS11_BUCK6:
 171                 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT;
 172                 if (!ramp_delay) {
 173                         ramp_enable = 0;
 174                         break;
 175                 }
 176
 177                 if (ramp_delay > s2mps11->ramp_delay16)
 178                         s2mps11->ramp_delay16 = ramp_delay;
 179                 else
 180                         ramp_delay = s2mps11->ramp_delay16;
 181
 182                 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
 183                 break;
 184         case S2MPS11_BUCK7:
 185         case S2MPS11_BUCK8:
 186         case S2MPS11_BUCK10:
 187                 if (ramp_delay > s2mps11->ramp_delay7810)
 188                         s2mps11->ramp_delay7810 = ramp_delay;
 189                 else
 190                         ramp_delay = s2mps11->ramp_delay7810;
 191
 192                 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT;
 193                 break;
 194         case S2MPS11_BUCK9:
 195                 s2mps11->ramp_delay9 = ramp_delay;
 196                 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT;
 197                 break;
 198         default:
 199                 return 0;
 200         }
 201
 202         if (!ramp_enable)
 203                 goto ramp_disable;
 204
 205         /* Ramp delay can be enabled/disabled only for buck[2346] */
 206         if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 &&
 207                         rdev_get_id(rdev) <= S2MPS11_BUCK4) ||
 208                         rdev_get_id(rdev) == S2MPS11_BUCK6)  {
 209                 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
 210                                          1 << enable_shift, 1 << enable_shift);
 211                 if (ret) {
 212                         dev_err(&rdev->dev, "failed to enable ramp rate\n");
 213                         return ret;
 214                 }
 215         }
 216
 217         ramp_val = get_ramp_delay(ramp_delay);
 218
 219         return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift,
 220                                   ramp_val << ramp_shift);
 221
 222 ramp_disable:
 223         return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
 224                                   1 << enable_shift, 0);
 225 }
 226
 227 static const struct regulator_ops s2mps11_ldo_ops = {
 228         .list_voltage           = regulator_list_voltage_linear,
 229         .map_voltage            = regulator_map_voltage_linear,
 230         .is_enabled             = regulator_is_enabled_regmap,
 231         .enable                 = regulator_enable_regmap,
 232         .disable                = regulator_disable_regmap,
 233         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 234         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 235         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 236 };
 237
 238 static const struct regulator_ops s2mps11_buck_ops = {
 239         .list_voltage           = regulator_list_voltage_linear,
 240         .map_voltage            = regulator_map_voltage_linear,
 241         .is_enabled             = regulator_is_enabled_regmap,
 242         .enable                 = regulator_enable_regmap,
 243         .disable                = regulator_disable_regmap,
 244         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 245         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 246         .set_voltage_time_sel   = s2mps11_regulator_set_voltage_time_sel,
 247         .set_ramp_delay         = s2mps11_set_ramp_delay,
 248 };
 249
 250 #define regulator_desc_s2mps11_ldo(num, step) {         \
 251         .name           = "LDO"#num,                    \
 252         .id             = S2MPS11_LDO##num,             \
 253         .ops            = &s2mps11_ldo_ops,             \
 254         .type           = REGULATOR_VOLTAGE,            \
 255         .owner          = THIS_MODULE,                  \
 256         .ramp_delay     = RAMP_DELAY_12_MVUS,           \
 257         .min_uV         = MIN_800_MV,                   \
 258         .uV_step        = step,                         \
 259         .n_voltages     = S2MPS11_LDO_N_VOLTAGES,       \
 260         .vsel_reg       = S2MPS11_REG_L1CTRL + num - 1, \
 261         .vsel_mask      = S2MPS11_LDO_VSEL_MASK,        \
 262         .enable_reg     = S2MPS11_REG_L1CTRL + num - 1, \
 263         .enable_mask    = S2MPS11_ENABLE_MASK           \
 264 }
 265
 266 #define regulator_desc_s2mps11_buck1_4(num) {                   \
 267         .name           = "BUCK"#num,                           \
 268         .id             = S2MPS11_BUCK##num,                    \
 269         .ops            = &s2mps11_buck_ops,                    \
 270         .type           = REGULATOR_VOLTAGE,                    \
 271         .owner          = THIS_MODULE,                          \
 272         .min_uV         = MIN_600_MV,                           \
 273         .uV_step        = STEP_6_25_MV,                         \
 274         .n_voltages     = S2MPS11_BUCK_N_VOLTAGES,              \
 275         .ramp_delay     = S2MPS11_RAMP_DELAY,                   \
 276         .vsel_reg       = S2MPS11_REG_B1CTRL2 + (num - 1) * 2,  \
 277         .vsel_mask      = S2MPS11_BUCK_VSEL_MASK,               \
 278         .enable_reg     = S2MPS11_REG_B1CTRL1 + (num - 1) * 2,  \
 279         .enable_mask    = S2MPS11_ENABLE_MASK                   \
 280 }
 281
 282 #define regulator_desc_s2mps11_buck5 {                          \
 283         .name           = "BUCK5",                              \
 284         .id             = S2MPS11_BUCK5,                        \
 285         .ops            = &s2mps11_buck_ops,                    \
 286         .type           = REGULATOR_VOLTAGE,                    \
 287         .owner          = THIS_MODULE,                          \
 288         .min_uV         = MIN_600_MV,                           \
 289         .uV_step        = STEP_6_25_MV,                         \
 290         .n_voltages     = S2MPS11_BUCK_N_VOLTAGES,              \
 291         .ramp_delay     = S2MPS11_RAMP_DELAY,                   \
 292         .vsel_reg       = S2MPS11_REG_B5CTRL2,                  \
 293         .vsel_mask      = S2MPS11_BUCK_VSEL_MASK,               \
 294         .enable_reg     = S2MPS11_REG_B5CTRL1,                  \
 295         .enable_mask    = S2MPS11_ENABLE_MASK                   \
 296 }
 297
 298 #define regulator_desc_s2mps11_buck67810(num, min, step) {      \
 299         .name           = "BUCK"#num,                           \
 300         .id             = S2MPS11_BUCK##num,                    \
 301         .ops            = &s2mps11_buck_ops,                    \
 302         .type           = REGULATOR_VOLTAGE,                    \
 303         .owner          = THIS_MODULE,                          \
 304         .min_uV         = min,                                  \
 305         .uV_step        = step,                                 \
 306         .n_voltages     = S2MPS11_BUCK_N_VOLTAGES,              \
 307         .ramp_delay     = S2MPS11_RAMP_DELAY,                   \
 308         .vsel_reg       = S2MPS11_REG_B6CTRL2 + (num - 6) * 2,  \
 309         .vsel_mask      = S2MPS11_BUCK_VSEL_MASK,               \
 310         .enable_reg     = S2MPS11_REG_B6CTRL1 + (num - 6) * 2,  \
 311         .enable_mask    = S2MPS11_ENABLE_MASK                   \
 312 }
 313
 314 #define regulator_desc_s2mps11_buck9 {                          \
 315         .name           = "BUCK9",                              \
 316         .id             = S2MPS11_BUCK9,                        \
 317         .ops            = &s2mps11_buck_ops,                    \
 318         .type           = REGULATOR_VOLTAGE,                    \
 319         .owner          = THIS_MODULE,                          \
 320         .min_uV         = MIN_3000_MV,                          \
 321         .uV_step        = STEP_25_MV,                           \
 322         .n_voltages     = S2MPS11_BUCK9_N_VOLTAGES,             \
 323         .ramp_delay     = S2MPS11_RAMP_DELAY,                   \
 324         .vsel_reg       = S2MPS11_REG_B9CTRL2,                  \
 325         .vsel_mask      = S2MPS11_BUCK9_VSEL_MASK,              \
 326         .enable_reg     = S2MPS11_REG_B9CTRL1,                  \
 327         .enable_mask    = S2MPS11_ENABLE_MASK                   \
 328 }
 329
 330 static const struct regulator_desc s2mps11_regulators[] = {
 331         regulator_desc_s2mps11_ldo(1, STEP_25_MV),
 332         regulator_desc_s2mps11_ldo(2, STEP_50_MV),
 333         regulator_desc_s2mps11_ldo(3, STEP_50_MV),
 334         regulator_desc_s2mps11_ldo(4, STEP_50_MV),
 335         regulator_desc_s2mps11_ldo(5, STEP_50_MV),
 336         regulator_desc_s2mps11_ldo(6, STEP_25_MV),
 337         regulator_desc_s2mps11_ldo(7, STEP_50_MV),
 338         regulator_desc_s2mps11_ldo(8, STEP_50_MV),
 339         regulator_desc_s2mps11_ldo(9, STEP_50_MV),
 340         regulator_desc_s2mps11_ldo(10, STEP_50_MV),
 341         regulator_desc_s2mps11_ldo(11, STEP_25_MV),
 342         regulator_desc_s2mps11_ldo(12, STEP_50_MV),
 343         regulator_desc_s2mps11_ldo(13, STEP_50_MV),
 344         regulator_desc_s2mps11_ldo(14, STEP_50_MV),
 345         regulator_desc_s2mps11_ldo(15, STEP_50_MV),
 346         regulator_desc_s2mps11_ldo(16, STEP_50_MV),
 347         regulator_desc_s2mps11_ldo(17, STEP_50_MV),
 348         regulator_desc_s2mps11_ldo(18, STEP_50_MV),
 349         regulator_desc_s2mps11_ldo(19, STEP_50_MV),
 350         regulator_desc_s2mps11_ldo(20, STEP_50_MV),
 351         regulator_desc_s2mps11_ldo(21, STEP_50_MV),
 352         regulator_desc_s2mps11_ldo(22, STEP_25_MV),
 353         regulator_desc_s2mps11_ldo(23, STEP_25_MV),
 354         regulator_desc_s2mps11_ldo(24, STEP_50_MV),
 355         regulator_desc_s2mps11_ldo(25, STEP_50_MV),
 356         regulator_desc_s2mps11_ldo(26, STEP_50_MV),
 357         regulator_desc_s2mps11_ldo(27, STEP_25_MV),
 358         regulator_desc_s2mps11_ldo(28, STEP_50_MV),
 359         regulator_desc_s2mps11_ldo(29, STEP_50_MV),
 360         regulator_desc_s2mps11_ldo(30, STEP_50_MV),
 361         regulator_desc_s2mps11_ldo(31, STEP_50_MV),
 362         regulator_desc_s2mps11_ldo(32, STEP_50_MV),
 363         regulator_desc_s2mps11_ldo(33, STEP_50_MV),
 364         regulator_desc_s2mps11_ldo(34, STEP_50_MV),
 365         regulator_desc_s2mps11_ldo(35, STEP_25_MV),
 366         regulator_desc_s2mps11_ldo(36, STEP_50_MV),
 367         regulator_desc_s2mps11_ldo(37, STEP_50_MV),
 368         regulator_desc_s2mps11_ldo(38, STEP_50_MV),
 369         regulator_desc_s2mps11_buck1_4(1),
 370         regulator_desc_s2mps11_buck1_4(2),
 371         regulator_desc_s2mps11_buck1_4(3),
 372         regulator_desc_s2mps11_buck1_4(4),
 373         regulator_desc_s2mps11_buck5,
 374         regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV),
 375         regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_12_5_MV),
 376         regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_12_5_MV),
 377         regulator_desc_s2mps11_buck9,
 378         regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV),
 379 };
 380
 381 static const struct regulator_ops s2mps14_reg_ops;
 382
 383 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) {   \
 384         .name           = "LDO"#num,                            \
 385         .id             = S2MPS13_LDO##num,                     \
 386         .ops            = &s2mps14_reg_ops,                     \
 387         .type           = REGULATOR_VOLTAGE,                    \
 388         .owner          = THIS_MODULE,                          \
 389         .min_uV         = min,                                  \
 390         .uV_step        = step,                                 \
 391         .linear_min_sel = min_sel,                              \
 392         .n_voltages     = S2MPS14_LDO_N_VOLTAGES,               \
 393         .vsel_reg       = S2MPS13_REG_L1CTRL + num - 1,         \
 394         .vsel_mask      = S2MPS14_LDO_VSEL_MASK,                \
 395         .enable_reg     = S2MPS13_REG_L1CTRL + num - 1,         \
 396         .enable_mask    = S2MPS14_ENABLE_MASK                   \
 397 }
 398
 399 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) {  \
 400         .name           = "BUCK"#num,                           \
 401         .id             = S2MPS13_BUCK##num,                    \
 402         .ops            = &s2mps14_reg_ops,                     \
 403         .type           = REGULATOR_VOLTAGE,                    \
 404         .owner          = THIS_MODULE,                          \
 405         .min_uV         = min,                                  \
 406         .uV_step        = step,                                 \
 407         .linear_min_sel = min_sel,                              \
 408         .n_voltages     = S2MPS14_BUCK_N_VOLTAGES,              \
 409         .ramp_delay     = S2MPS13_BUCK_RAMP_DELAY,              \
 410         .vsel_reg       = S2MPS13_REG_B1OUT + (num - 1) * 2,    \
 411         .vsel_mask      = S2MPS14_BUCK_VSEL_MASK,               \
 412         .enable_reg     = S2MPS13_REG_B1CTRL + (num - 1) * 2,   \
 413         .enable_mask    = S2MPS14_ENABLE_MASK                   \
 414 }
 415
 416 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \
 417         .name           = "BUCK"#num,                           \
 418         .id             = S2MPS13_BUCK##num,                    \
 419         .ops            = &s2mps14_reg_ops,                     \
 420         .type           = REGULATOR_VOLTAGE,                    \
 421         .owner          = THIS_MODULE,                          \
 422         .min_uV         = min,                                  \
 423         .uV_step        = step,                                 \
 424         .linear_min_sel = min_sel,                              \
 425         .n_voltages     = S2MPS14_BUCK_N_VOLTAGES,              \
 426         .ramp_delay     = S2MPS13_BUCK_RAMP_DELAY,              \
 427         .vsel_reg       = S2MPS13_REG_B1OUT + (num) * 2 - 1,    \
 428         .vsel_mask      = S2MPS14_BUCK_VSEL_MASK,               \
 429         .enable_reg     = S2MPS13_REG_B1CTRL + (num - 1) * 2,   \
 430         .enable_mask    = S2MPS14_ENABLE_MASK                   \
 431 }
 432
 433 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) {      \
 434         .name           = "BUCK"#num,                           \
 435         .id             = S2MPS13_BUCK##num,                    \
 436         .ops            = &s2mps14_reg_ops,                     \
 437         .type           = REGULATOR_VOLTAGE,                    \
 438         .owner          = THIS_MODULE,                          \
 439         .min_uV         = min,                                  \
 440         .uV_step        = step,                                 \
 441         .linear_min_sel = min_sel,                              \
 442         .n_voltages     = S2MPS14_BUCK_N_VOLTAGES,              \
 443         .ramp_delay     = S2MPS13_BUCK_RAMP_DELAY,              \
 444         .vsel_reg       = S2MPS13_REG_B1OUT + (num) * 2 - 1,    \
 445         .vsel_mask      = S2MPS14_BUCK_VSEL_MASK,               \
 446         .enable_reg     = S2MPS13_REG_B1CTRL + (num) * 2 - 1,   \
 447         .enable_mask    = S2MPS14_ENABLE_MASK                   \
 448 }
 449
 450 static const struct regulator_desc s2mps13_regulators[] = {
 451         regulator_desc_s2mps13_ldo(1,  MIN_800_MV,  STEP_12_5_MV, 0x00),
 452         regulator_desc_s2mps13_ldo(2,  MIN_1400_MV, STEP_50_MV,   0x0C),
 453         regulator_desc_s2mps13_ldo(3,  MIN_1000_MV, STEP_25_MV,   0x08),
 454         regulator_desc_s2mps13_ldo(4,  MIN_800_MV,  STEP_12_5_MV, 0x00),
 455         regulator_desc_s2mps13_ldo(5,  MIN_800_MV,  STEP_12_5_MV, 0x00),
 456         regulator_desc_s2mps13_ldo(6,  MIN_800_MV,  STEP_12_5_MV, 0x00),
 457         regulator_desc_s2mps13_ldo(7,  MIN_1000_MV, STEP_25_MV,   0x08),
 458         regulator_desc_s2mps13_ldo(8,  MIN_1000_MV, STEP_25_MV,   0x08),
 459         regulator_desc_s2mps13_ldo(9,  MIN_1000_MV, STEP_25_MV,   0x08),
 460         regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV,   0x0C),
 461         regulator_desc_s2mps13_ldo(11, MIN_800_MV,  STEP_25_MV,   0x10),
 462         regulator_desc_s2mps13_ldo(12, MIN_800_MV,  STEP_25_MV,   0x10),
 463         regulator_desc_s2mps13_ldo(13, MIN_800_MV,  STEP_25_MV,   0x10),
 464         regulator_desc_s2mps13_ldo(14, MIN_800_MV,  STEP_12_5_MV, 0x00),
 465         regulator_desc_s2mps13_ldo(15, MIN_800_MV,  STEP_12_5_MV, 0x00),
 466         regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV,   0x0C),
 467         regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV,   0x0C),
 468         regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV,   0x08),
 469         regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV,   0x08),
 470         regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV,   0x0C),
 471         regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV,   0x08),
 472         regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV,   0x08),
 473         regulator_desc_s2mps13_ldo(23, MIN_800_MV,  STEP_12_5_MV, 0x00),
 474         regulator_desc_s2mps13_ldo(24, MIN_800_MV,  STEP_12_5_MV, 0x00),
 475         regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV,   0x0C),
 476         regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV,   0x0C),
 477         regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV,   0x0C),
 478         regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV,   0x08),
 479         regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV,   0x0C),
 480         regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV,   0x0C),
 481         regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV,   0x08),
 482         regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV,   0x08),
 483         regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV,   0x0C),
 484         regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV,   0x08),
 485         regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV,   0x0C),
 486         regulator_desc_s2mps13_ldo(36, MIN_800_MV,  STEP_12_5_MV, 0x00),
 487         regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV,   0x08),
 488         regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV,   0x0C),
 489         regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV,   0x08),
 490         regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV,   0x0C),
 491         regulator_desc_s2mps13_buck(1,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 492         regulator_desc_s2mps13_buck(2,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 493         regulator_desc_s2mps13_buck(3,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 494         regulator_desc_s2mps13_buck(4,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 495         regulator_desc_s2mps13_buck(5,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 496         regulator_desc_s2mps13_buck(6,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 497         regulator_desc_s2mps13_buck7(7,  MIN_500_MV,  STEP_6_25_MV, 0x10),
 498         regulator_desc_s2mps13_buck8_10(8,  MIN_1000_MV, STEP_12_5_MV, 0x20),
 499         regulator_desc_s2mps13_buck8_10(9,  MIN_1000_MV, STEP_12_5_MV, 0x20),
 500         regulator_desc_s2mps13_buck8_10(10, MIN_500_MV,  STEP_6_25_MV, 0x10),
 501 };
 502
 503 static int s2mps14_regulator_enable(struct regulator_dev *rdev)
 504 {
 505         struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
 506         unsigned int val;
 507
 508         switch (s2mps11->dev_type) {
 509         case S2MPS13X:
 510         case S2MPS14X:
 511                 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state))
 512                         val = S2MPS14_ENABLE_SUSPEND;
 513                 else if (s2mps11->ext_control_gpiod[rdev_get_id(rdev)])
 514                         val = S2MPS14_ENABLE_EXT_CONTROL;
 515                 else
 516                         val = rdev->desc->enable_mask;
 517                 break;
 518         case S2MPU02:
 519                 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state))
 520                         val = S2MPU02_ENABLE_SUSPEND;
 521                 else
 522                         val = rdev->desc->enable_mask;
 523                 break;
 524         default:
 525                 return -EINVAL;
 526         }
 527
 528         return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
 529                         rdev->desc->enable_mask, val);
 530 }
 531
 532 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev)
 533 {
 534         int ret;
 535         unsigned int val, state;
 536         struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
 537         int rdev_id = rdev_get_id(rdev);
 538
 539         /* Below LDO should be always on or does not support suspend mode. */
 540         switch (s2mps11->dev_type) {
 541         case S2MPS13X:
 542         case S2MPS14X:
 543                 switch (rdev_id) {
 544                 case S2MPS14_LDO3:
 545                         return 0;
 546                 default:
 547                         state = S2MPS14_ENABLE_SUSPEND;
 548                         break;
 549                 }
 550                 break;
 551         case S2MPU02:
 552                 switch (rdev_id) {
 553                 case S2MPU02_LDO13:
 554                 case S2MPU02_LDO14:
 555                 case S2MPU02_LDO15:
 556                 case S2MPU02_LDO17:
 557                 case S2MPU02_BUCK7:
 558                         state = S2MPU02_DISABLE_SUSPEND;
 559                         break;
 560                 default:
 561                         state = S2MPU02_ENABLE_SUSPEND;
 562                         break;
 563                 }
 564                 break;
 565         default:
 566                 return -EINVAL;
 567         }
 568
 569         ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
 570         if (ret < 0)
 571                 return ret;
 572
 573         set_bit(rdev_get_id(rdev), s2mps11->suspend_state);
 574         /*
 575          * Don't enable suspend mode if regulator is already disabled because
 576          * this would effectively for a short time turn on the regulator after
 577          * resuming.
 578          * However we still want to toggle the suspend_state bit for regulator
 579          * in case if it got enabled before suspending the system.
 580          */
 581         if (!(val & rdev->desc->enable_mask))
 582                 return 0;
 583
 584         return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
 585                         rdev->desc->enable_mask, state);
 586 }
 587
 588 static const struct regulator_ops s2mps14_reg_ops = {
 589         .list_voltage           = regulator_list_voltage_linear,
 590         .map_voltage            = regulator_map_voltage_linear,
 591         .is_enabled             = regulator_is_enabled_regmap,
 592         .enable                 = s2mps14_regulator_enable,
 593         .disable                = regulator_disable_regmap,
 594         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 595         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 596         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 597         .set_suspend_disable    = s2mps14_regulator_set_suspend_disable,
 598 };
 599
 600 #define regulator_desc_s2mps14_ldo(num, min, step) {    \
 601         .name           = "LDO"#num,                    \
 602         .id             = S2MPS14_LDO##num,             \
 603         .ops            = &s2mps14_reg_ops,             \
 604         .type           = REGULATOR_VOLTAGE,            \
 605         .owner          = THIS_MODULE,                  \
 606         .min_uV         = min,                          \
 607         .uV_step        = step,                         \
 608         .n_voltages     = S2MPS14_LDO_N_VOLTAGES,       \
 609         .vsel_reg       = S2MPS14_REG_L1CTRL + num - 1, \
 610         .vsel_mask      = S2MPS14_LDO_VSEL_MASK,        \
 611         .enable_reg     = S2MPS14_REG_L1CTRL + num - 1, \
 612         .enable_mask    = S2MPS14_ENABLE_MASK           \
 613 }
 614
 615 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) {  \
 616         .name           = "BUCK"#num,                           \
 617         .id             = S2MPS14_BUCK##num,                    \
 618         .ops            = &s2mps14_reg_ops,                     \
 619         .type           = REGULATOR_VOLTAGE,                    \
 620         .owner          = THIS_MODULE,                          \
 621         .min_uV         = min,                                  \
 622         .uV_step        = step,                                 \
 623         .n_voltages     = S2MPS14_BUCK_N_VOLTAGES,              \
 624         .linear_min_sel = min_sel,                              \
 625         .ramp_delay     = S2MPS14_BUCK_RAMP_DELAY,              \
 626         .vsel_reg       = S2MPS14_REG_B1CTRL2 + (num - 1) * 2,  \
 627         .vsel_mask      = S2MPS14_BUCK_VSEL_MASK,               \
 628         .enable_reg     = S2MPS14_REG_B1CTRL1 + (num - 1) * 2,  \
 629         .enable_mask    = S2MPS14_ENABLE_MASK                   \
 630 }
 631
 632 static const struct regulator_desc s2mps14_regulators[] = {
 633         regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV),
 634         regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV),
 635         regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV),
 636         regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV),
 637         regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV),
 638         regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV),
 639         regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV),
 640         regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV),
 641         regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV),
 642         regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV),
 643         regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV),
 644         regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV),
 645         regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV),
 646         regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV),
 647         regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV),
 648         regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV),
 649         regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV),
 650         regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV),
 651         regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV),
 652         regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV),
 653         regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV),
 654         regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV),
 655         regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV),
 656         regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV),
 657         regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV),
 658         regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV,
 659                                     S2MPS14_BUCK1235_START_SEL),
 660         regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV,
 661                                     S2MPS14_BUCK1235_START_SEL),
 662         regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV,
 663                                     S2MPS14_BUCK1235_START_SEL),
 664         regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV,
 665                                     S2MPS14_BUCK4_START_SEL),
 666         regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV,
 667                                     S2MPS14_BUCK1235_START_SEL),
 668 };
 669
 670 static const struct regulator_ops s2mps15_reg_ldo_ops = {
 671         .list_voltage           = regulator_list_voltage_linear_range,
 672         .map_voltage            = regulator_map_voltage_linear_range,
 673         .is_enabled             = regulator_is_enabled_regmap,
 674         .enable                 = regulator_enable_regmap,
 675         .disable                = regulator_disable_regmap,
 676         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 677         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 678 };
 679
 680 static const struct regulator_ops s2mps15_reg_buck_ops = {
 681         .list_voltage           = regulator_list_voltage_linear_range,
 682         .map_voltage            = regulator_map_voltage_linear_range,
 683         .is_enabled             = regulator_is_enabled_regmap,
 684         .enable                 = regulator_enable_regmap,
 685         .disable                = regulator_disable_regmap,
 686         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 687         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 688         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 689 };
 690
 691 #define regulator_desc_s2mps15_ldo(num, range) {        \
 692         .name           = "LDO"#num,                    \
 693         .id             = S2MPS15_LDO##num,             \
 694         .ops            = &s2mps15_reg_ldo_ops,         \
 695         .type           = REGULATOR_VOLTAGE,            \
 696         .owner          = THIS_MODULE,                  \
 697         .linear_ranges  = range,                        \
 698         .n_linear_ranges = ARRAY_SIZE(range),           \
 699         .n_voltages     = S2MPS15_LDO_N_VOLTAGES,       \
 700         .vsel_reg       = S2MPS15_REG_L1CTRL + num - 1, \
 701         .vsel_mask      = S2MPS15_LDO_VSEL_MASK,        \
 702         .enable_reg     = S2MPS15_REG_L1CTRL + num - 1, \
 703         .enable_mask    = S2MPS15_ENABLE_MASK           \
 704 }
 705
 706 #define regulator_desc_s2mps15_buck(num, range) {                       \
 707         .name           = "BUCK"#num,                                   \
 708         .id             = S2MPS15_BUCK##num,                            \
 709         .ops            = &s2mps15_reg_buck_ops,                        \
 710         .type           = REGULATOR_VOLTAGE,                            \
 711         .owner          = THIS_MODULE,                                  \
 712         .linear_ranges  = range,                                        \
 713         .n_linear_ranges = ARRAY_SIZE(range),                           \
 714         .ramp_delay     = 12500,                                        \
 715         .n_voltages     = S2MPS15_BUCK_N_VOLTAGES,                      \
 716         .vsel_reg       = S2MPS15_REG_B1CTRL2 + ((num - 1) * 2),        \
 717         .vsel_mask      = S2MPS15_BUCK_VSEL_MASK,                       \
 718         .enable_reg     = S2MPS15_REG_B1CTRL1 + ((num - 1) * 2),        \
 719         .enable_mask    = S2MPS15_ENABLE_MASK                           \
 720 }
 721
 722 /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */
 723 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = {
 724         REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000),
 725 };
 726
 727 /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */
 728 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = {
 729         REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000),
 730 };
 731
 732 /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */
 733 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = {
 734         REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500),
 735 };
 736
 737 /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */
 738 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = {
 739         REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000),
 740 };
 741
 742 /* voltage range for s2mps15 LDO 1 */
 743 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = {
 744         REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500),
 745 };
 746
 747 /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */
 748 static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = {
 749         REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250),
 750 };
 751
 752 /* voltage range for s2mps15 BUCK 8, 9 and 10 */
 753 static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = {
 754         REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500),
 755 };
 756
 757 static const struct regulator_desc s2mps15_regulators[] = {
 758         regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5),
 759         regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2),
 760         regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1),
 761         regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3),
 762         regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1),
 763         regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2),
 764         regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4),
 765         regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4),
 766         regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4),
 767         regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4),
 768         regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3),
 769         regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3),
 770         regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3),
 771         regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2),
 772         regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1),
 773         regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1),
 774         regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2),
 775         regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1),
 776         regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2),
 777         regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1),
 778         regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2),
 779         regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3),
 780         regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1),
 781         regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2),
 782         regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2),
 783         regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3),
 784         regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1),
 785         regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1),
 786         regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1),
 787         regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1),
 788         regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1),
 789         regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1),
 790         regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1),
 791         regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1),
 792         regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2),
 793         regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2),
 794         regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2),
 795 };
 796
 797 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
 798                 struct regulator_dev *rdev)
 799 {
 800         return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
 801                         rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL);
 802 }
 803
 804 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev,
 805                 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
 806 {
 807         struct gpio_desc **gpio = s2mps11->ext_control_gpiod;
 808         unsigned int i;
 809         unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11,
 810                 S2MPS14_LDO12 };
 811
 812         for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) {
 813                 unsigned int reg = valid_regulators[i];
 814
 815                 if (!rdata[reg].init_data || !rdata[reg].of_node)
 816                         continue;
 817
 818                 gpio[reg] = devm_gpiod_get_from_of_node(&pdev->dev,
 819                                 rdata[reg].of_node,
 820                                 "samsung,ext-control-gpios",
 821                                 0,
 822                                 GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE,
 823                                 "s2mps11-regulator");
 824                 if (IS_ERR(gpio[reg])) {
 825                         dev_err(&pdev->dev, "Failed to get control GPIO for %d/%s\n",
 826                                 reg, rdata[reg].name);
 827                         continue;
 828                 }
 829                 if (gpio[reg])
 830                         dev_dbg(&pdev->dev, "Using GPIO for ext-control over %d/%s\n",
 831                                 reg, rdata[reg].name);
 832         }
 833 }
 834
 835 static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
 836                 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11,
 837                 unsigned int rdev_num)
 838 {
 839         struct device_node *reg_np;
 840
 841         reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
 842         if (!reg_np) {
 843                 dev_err(&pdev->dev, "could not find regulators sub-node\n");
 844                 return -EINVAL;
 845         }
 846
 847         of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num);
 848         if (s2mps11->dev_type == S2MPS14X)
 849                 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11);
 850
 851         of_node_put(reg_np);
 852
 853         return 0;
 854 }
 855
 856 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
 857 {
 858         unsigned int ramp_val, ramp_shift, ramp_reg;
 859
 860         switch (rdev_get_id(rdev)) {
 861         case S2MPU02_BUCK1:
 862                 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT;
 863                 break;
 864         case S2MPU02_BUCK2:
 865                 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT;
 866                 break;
 867         case S2MPU02_BUCK3:
 868                 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT;
 869                 break;
 870         case S2MPU02_BUCK4:
 871                 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT;
 872                 break;
 873         default:
 874                 return 0;
 875         }
 876         ramp_reg = S2MPU02_REG_RAMP1;
 877         ramp_val = get_ramp_delay(ramp_delay);
 878
 879         return regmap_update_bits(rdev->regmap, ramp_reg,
 880                                   S2MPU02_BUCK1234_RAMP_MASK << ramp_shift,
 881                                   ramp_val << ramp_shift);
 882 }
 883
 884 static const struct regulator_ops s2mpu02_ldo_ops = {
 885         .list_voltage           = regulator_list_voltage_linear,
 886         .map_voltage            = regulator_map_voltage_linear,
 887         .is_enabled             = regulator_is_enabled_regmap,
 888         .enable                 = s2mps14_regulator_enable,
 889         .disable                = regulator_disable_regmap,
 890         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 891         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 892         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 893         .set_suspend_disable    = s2mps14_regulator_set_suspend_disable,
 894 };
 895
 896 static const struct regulator_ops s2mpu02_buck_ops = {
 897         .list_voltage           = regulator_list_voltage_linear,
 898         .map_voltage            = regulator_map_voltage_linear,
 899         .is_enabled             = regulator_is_enabled_regmap,
 900         .enable                 = s2mps14_regulator_enable,
 901         .disable                = regulator_disable_regmap,
 902         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 903         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 904         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 905         .set_suspend_disable    = s2mps14_regulator_set_suspend_disable,
 906         .set_ramp_delay         = s2mpu02_set_ramp_delay,
 907 };
 908
 909 #define regulator_desc_s2mpu02_ldo1(num) {              \
 910         .name           = "LDO"#num,                    \
 911         .id             = S2MPU02_LDO##num,             \
 912         .ops            = &s2mpu02_ldo_ops,             \
 913         .type           = REGULATOR_VOLTAGE,            \
 914         .owner          = THIS_MODULE,                  \
 915         .min_uV         = S2MPU02_LDO_MIN_900MV,        \
 916         .uV_step        = S2MPU02_LDO_STEP_12_5MV,      \
 917         .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
 918         .n_voltages     = S2MPU02_LDO_N_VOLTAGES,       \
 919         .vsel_reg       = S2MPU02_REG_L1CTRL,           \
 920         .vsel_mask      = S2MPU02_LDO_VSEL_MASK,        \
 921         .enable_reg     = S2MPU02_REG_L1CTRL,           \
 922         .enable_mask    = S2MPU02_ENABLE_MASK           \
 923 }
 924 #define regulator_desc_s2mpu02_ldo2(num) {              \
 925         .name           = "LDO"#num,                    \
 926         .id             = S2MPU02_LDO##num,             \
 927         .ops            = &s2mpu02_ldo_ops,             \
 928         .type           = REGULATOR_VOLTAGE,            \
 929         .owner          = THIS_MODULE,                  \
 930         .min_uV         = S2MPU02_LDO_MIN_1050MV,       \
 931         .uV_step        = S2MPU02_LDO_STEP_25MV,        \
 932         .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
 933         .n_voltages     = S2MPU02_LDO_N_VOLTAGES,       \
 934         .vsel_reg       = S2MPU02_REG_L2CTRL1,          \
 935         .vsel_mask      = S2MPU02_LDO_VSEL_MASK,        \
 936         .enable_reg     = S2MPU02_REG_L2CTRL1,          \
 937         .enable_mask    = S2MPU02_ENABLE_MASK           \
 938 }
 939 #define regulator_desc_s2mpu02_ldo3(num) {              \
 940         .name           = "LDO"#num,                    \
 941         .id             = S2MPU02_LDO##num,             \
 942         .ops            = &s2mpu02_ldo_ops,             \
 943         .type           = REGULATOR_VOLTAGE,            \
 944         .owner          = THIS_MODULE,                  \
 945         .min_uV         = S2MPU02_LDO_MIN_900MV,        \
 946         .uV_step        = S2MPU02_LDO_STEP_12_5MV,      \
 947         .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
 948         .n_voltages     = S2MPU02_LDO_N_VOLTAGES,       \
 949         .vsel_reg       = S2MPU02_REG_L3CTRL + num - 3, \
 950         .vsel_mask      = S2MPU02_LDO_VSEL_MASK,        \
 951         .enable_reg     = S2MPU02_REG_L3CTRL + num - 3, \
 952         .enable_mask    = S2MPU02_ENABLE_MASK           \
 953 }
 954 #define regulator_desc_s2mpu02_ldo4(num) {              \
 955         .name           = "LDO"#num,                    \
 956         .id             = S2MPU02_LDO##num,             \
 957         .ops            = &s2mpu02_ldo_ops,             \
 958         .type           = REGULATOR_VOLTAGE,            \
 959         .owner          = THIS_MODULE,                  \
 960         .min_uV         = S2MPU02_LDO_MIN_1050MV,       \
 961         .uV_step        = S2MPU02_LDO_STEP_25MV,        \
 962         .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
 963         .n_voltages     = S2MPU02_LDO_N_VOLTAGES,       \
 964         .vsel_reg       = S2MPU02_REG_L3CTRL + num - 3, \
 965         .vsel_mask      = S2MPU02_LDO_VSEL_MASK,        \
 966         .enable_reg     = S2MPU02_REG_L3CTRL + num - 3, \
 967         .enable_mask    = S2MPU02_ENABLE_MASK           \
 968 }
 969 #define regulator_desc_s2mpu02_ldo5(num) {              \
 970         .name           = "LDO"#num,                    \
 971         .id             = S2MPU02_LDO##num,             \
 972         .ops            = &s2mpu02_ldo_ops,             \
 973         .type           = REGULATOR_VOLTAGE,            \
 974         .owner          = THIS_MODULE,                  \
 975         .min_uV         = S2MPU02_LDO_MIN_1600MV,       \
 976         .uV_step        = S2MPU02_LDO_STEP_50MV,        \
 977         .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \
 978         .n_voltages     = S2MPU02_LDO_N_VOLTAGES,       \
 979         .vsel_reg       = S2MPU02_REG_L3CTRL + num - 3, \
 980         .vsel_mask      = S2MPU02_LDO_VSEL_MASK,        \
 981         .enable_reg     = S2MPU02_REG_L3CTRL + num - 3, \
 982         .enable_mask    = S2MPU02_ENABLE_MASK           \
 983 }
 984
 985 #define regulator_desc_s2mpu02_buck1234(num) {                  \
 986         .name           = "BUCK"#num,                           \
 987         .id             = S2MPU02_BUCK##num,                    \
 988         .ops            = &s2mpu02_buck_ops,                    \
 989         .type           = REGULATOR_VOLTAGE,                    \
 990         .owner          = THIS_MODULE,                          \
 991         .min_uV         = S2MPU02_BUCK1234_MIN_600MV,           \
 992         .uV_step        = S2MPU02_BUCK1234_STEP_6_25MV,         \
 993         .n_voltages     = S2MPU02_BUCK_N_VOLTAGES,              \
 994         .linear_min_sel = S2MPU02_BUCK1234_START_SEL,           \
 995         .ramp_delay     = S2MPU02_BUCK_RAMP_DELAY,              \
 996         .vsel_reg       = S2MPU02_REG_B1CTRL2 + (num - 1) * 2,  \
 997         .vsel_mask      = S2MPU02_BUCK_VSEL_MASK,               \
 998         .enable_reg     = S2MPU02_REG_B1CTRL1 + (num - 1) * 2,  \
 999         .enable_mask    = S2MPU02_ENABLE_MASK                   \
1000 }
1001 #define regulator_desc_s2mpu02_buck5(num) {                     \
1002         .name           = "BUCK"#num,                           \
1003         .id             = S2MPU02_BUCK##num,                    \
1004         .ops            = &s2mpu02_ldo_ops,                     \
1005         .type           = REGULATOR_VOLTAGE,                    \
1006         .owner          = THIS_MODULE,                          \
1007         .min_uV         = S2MPU02_BUCK5_MIN_1081_25MV,          \
1008         .uV_step        = S2MPU02_BUCK5_STEP_6_25MV,            \
1009         .n_voltages     = S2MPU02_BUCK_N_VOLTAGES,              \
1010         .linear_min_sel = S2MPU02_BUCK5_START_SEL,              \
1011         .ramp_delay     = S2MPU02_BUCK_RAMP_DELAY,              \
1012         .vsel_reg       = S2MPU02_REG_B5CTRL2,                  \
1013         .vsel_mask      = S2MPU02_BUCK_VSEL_MASK,               \
1014         .enable_reg     = S2MPU02_REG_B5CTRL1,                  \
1015         .enable_mask    = S2MPU02_ENABLE_MASK                   \
1016 }
1017 #define regulator_desc_s2mpu02_buck6(num) {                     \
1018         .name           = "BUCK"#num,                           \
1019         .id             = S2MPU02_BUCK##num,                    \
1020         .ops            = &s2mpu02_ldo_ops,                     \
1021         .type           = REGULATOR_VOLTAGE,                    \
1022         .owner          = THIS_MODULE,                          \
1023         .min_uV         = S2MPU02_BUCK6_MIN_1700MV,             \
1024         .uV_step        = S2MPU02_BUCK6_STEP_2_50MV,            \
1025         .n_voltages     = S2MPU02_BUCK_N_VOLTAGES,              \
1026         .linear_min_sel = S2MPU02_BUCK6_START_SEL,              \
1027         .ramp_delay     = S2MPU02_BUCK_RAMP_DELAY,              \
1028         .vsel_reg       = S2MPU02_REG_B6CTRL2,                  \
1029         .vsel_mask      = S2MPU02_BUCK_VSEL_MASK,               \
1030         .enable_reg     = S2MPU02_REG_B6CTRL1,                  \
1031         .enable_mask    = S2MPU02_ENABLE_MASK                   \
1032 }
1033 #define regulator_desc_s2mpu02_buck7(num) {                     \
1034         .name           = "BUCK"#num,                           \
1035         .id             = S2MPU02_BUCK##num,                    \
1036         .ops            = &s2mpu02_ldo_ops,                     \
1037         .type           = REGULATOR_VOLTAGE,                    \
1038         .owner          = THIS_MODULE,                          \
1039         .min_uV         = S2MPU02_BUCK7_MIN_900MV,              \
1040         .uV_step        = S2MPU02_BUCK7_STEP_6_25MV,            \
1041         .n_voltages     = S2MPU02_BUCK_N_VOLTAGES,              \
1042         .linear_min_sel = S2MPU02_BUCK7_START_SEL,              \
1043         .ramp_delay     = S2MPU02_BUCK_RAMP_DELAY,              \
1044         .vsel_reg       = S2MPU02_REG_B7CTRL2,                  \
1045         .vsel_mask      = S2MPU02_BUCK_VSEL_MASK,               \
1046         .enable_reg     = S2MPU02_REG_B7CTRL1,                  \
1047         .enable_mask    = S2MPU02_ENABLE_MASK                   \
1048 }
1049
1050 static const struct regulator_desc s2mpu02_regulators[] = {
1051         regulator_desc_s2mpu02_ldo1(1),
1052         regulator_desc_s2mpu02_ldo2(2),
1053         regulator_desc_s2mpu02_ldo4(3),
1054         regulator_desc_s2mpu02_ldo5(4),
1055         regulator_desc_s2mpu02_ldo4(5),
1056         regulator_desc_s2mpu02_ldo3(6),
1057         regulator_desc_s2mpu02_ldo3(7),
1058         regulator_desc_s2mpu02_ldo4(8),
1059         regulator_desc_s2mpu02_ldo5(9),
1060         regulator_desc_s2mpu02_ldo3(10),
1061         regulator_desc_s2mpu02_ldo4(11),
1062         regulator_desc_s2mpu02_ldo5(12),
1063         regulator_desc_s2mpu02_ldo5(13),
1064         regulator_desc_s2mpu02_ldo5(14),
1065         regulator_desc_s2mpu02_ldo5(15),
1066         regulator_desc_s2mpu02_ldo5(16),
1067         regulator_desc_s2mpu02_ldo4(17),
1068         regulator_desc_s2mpu02_ldo5(18),
1069         regulator_desc_s2mpu02_ldo3(19),
1070         regulator_desc_s2mpu02_ldo4(20),
1071         regulator_desc_s2mpu02_ldo5(21),
1072         regulator_desc_s2mpu02_ldo5(22),
1073         regulator_desc_s2mpu02_ldo5(23),
1074         regulator_desc_s2mpu02_ldo4(24),
1075         regulator_desc_s2mpu02_ldo5(25),
1076         regulator_desc_s2mpu02_ldo4(26),
1077         regulator_desc_s2mpu02_ldo5(27),
1078         regulator_desc_s2mpu02_ldo5(28),
1079         regulator_desc_s2mpu02_buck1234(1),
1080         regulator_desc_s2mpu02_buck1234(2),
1081         regulator_desc_s2mpu02_buck1234(3),
1082         regulator_desc_s2mpu02_buck1234(4),
1083         regulator_desc_s2mpu02_buck5(5),
1084         regulator_desc_s2mpu02_buck6(6),
1085         regulator_desc_s2mpu02_buck7(7),
1086 };
1087
1088 static int s2mps11_pmic_probe(struct platform_device *pdev)
1089 {
1090         struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
1091         struct sec_platform_data *pdata = NULL;
1092         struct of_regulator_match *rdata = NULL;
1093         struct regulator_config config = { };
1094         struct s2mps11_info *s2mps11;
1095         unsigned int rdev_num = 0;
1096         int i, ret = 0;
1097         const struct regulator_desc *regulators;
1098
1099         s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
1100                                 GFP_KERNEL);
1101         if (!s2mps11)
1102                 return -ENOMEM;
1103
1104         s2mps11->dev_type = platform_get_device_id(pdev)->driver_data;
1105         switch (s2mps11->dev_type) {
1106         case S2MPS11X:
1107                 rdev_num = ARRAY_SIZE(s2mps11_regulators);
1108                 regulators = s2mps11_regulators;
1109                 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps11_regulators));
1110                 break;
1111         case S2MPS13X:
1112                 rdev_num = ARRAY_SIZE(s2mps13_regulators);
1113                 regulators = s2mps13_regulators;
1114                 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps13_regulators));
1115                 break;
1116         case S2MPS14X:
1117                 rdev_num = ARRAY_SIZE(s2mps14_regulators);
1118                 regulators = s2mps14_regulators;
1119                 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps14_regulators));
1120                 break;
1121         case S2MPS15X:
1122                 rdev_num = ARRAY_SIZE(s2mps15_regulators);
1123                 regulators = s2mps15_regulators;
1124                 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps15_regulators));
1125                 break;
1126         case S2MPU02:
1127                 rdev_num = ARRAY_SIZE(s2mpu02_regulators);
1128                 regulators = s2mpu02_regulators;
1129                 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mpu02_regulators));
1130                 break;
1131         default:
1132                 dev_err(&pdev->dev, "Invalid device type: %u\n",
1133                                     s2mps11->dev_type);
1134                 return -EINVAL;
1135         }
1136
1137         s2mps11->ext_control_gpiod = devm_kcalloc(&pdev->dev, rdev_num,
1138                                sizeof(*s2mps11->ext_control_gpiod), GFP_KERNEL);
1139         if (!s2mps11->ext_control_gpiod)
1140                 return -ENOMEM;
1141
1142         if (!iodev->dev->of_node) {
1143                 if (iodev->pdata) {
1144                         pdata = iodev->pdata;
1145                         goto common_reg;
1146                 } else {
1147                         dev_err(pdev->dev.parent,
1148                                 "Platform data or DT node not supplied\n");
1149                         return -ENODEV;
1150                 }
1151         }
1152
1153         rdata = kcalloc(rdev_num, sizeof(*rdata), GFP_KERNEL);
1154         if (!rdata)
1155                 return -ENOMEM;
1156
1157         for (i = 0; i < rdev_num; i++)
1158                 rdata[i].name = regulators[i].name;
1159
1160         ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, rdev_num);
1161         if (ret)
1162                 goto out;
1163
1164 common_reg:
1165         platform_set_drvdata(pdev, s2mps11);
1166
1167         config.dev = &pdev->dev;
1168         config.regmap = iodev->regmap_pmic;
1169         config.driver_data = s2mps11;
1170         for (i = 0; i < rdev_num; i++) {
1171                 struct regulator_dev *regulator;
1172
1173                 if (pdata) {
1174                         config.init_data = pdata->regulators[i].initdata;
1175                         config.of_node = pdata->regulators[i].reg_node;
1176                 } else {
1177                         config.init_data = rdata[i].init_data;
1178                         config.of_node = rdata[i].of_node;
1179                 }
1180                 config.ena_gpiod = s2mps11->ext_control_gpiod[i];
1181                 /*
1182                  * Hand the GPIO descriptor management over to the regulator
1183                  * core, remove it from devres management.
1184                  */
1185                 if (config.ena_gpiod)
1186                         devm_gpiod_unhinge(&pdev->dev, config.ena_gpiod);
1187                 regulator = devm_regulator_register(&pdev->dev,
1188                                                 &regulators[i], &config);
1189                 if (IS_ERR(regulator)) {
1190                         ret = PTR_ERR(regulator);
1191                         dev_err(&pdev->dev, "regulator init failed for %d\n",
1192                                 i);
1193                         goto out;
1194                 }
1195
1196                 if (s2mps11->ext_control_gpiod[i]) {
1197                         ret = s2mps14_pmic_enable_ext_control(s2mps11,
1198                                         regulator);
1199                         if (ret < 0) {
1200                                 dev_err(&pdev->dev,
1201                                                 "failed to enable GPIO control over %s: %d\n",
1202                                                 regulator->desc->name, ret);
1203                                 goto out;
1204                         }
1205                 }
1206         }
1207
1208 out:
1209         kfree(rdata);
1210
1211         return ret;
1212 }
1213
1214 static const struct platform_device_id s2mps11_pmic_id[] = {
1215         { "s2mps11-regulator", S2MPS11X},
1216         { "s2mps13-regulator", S2MPS13X},
1217         { "s2mps14-regulator", S2MPS14X},
1218         { "s2mps15-regulator", S2MPS15X},
1219         { "s2mpu02-regulator", S2MPU02},
1220         { },
1221 };
1222 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
1223
1224 static struct platform_driver s2mps11_pmic_driver = {
1225         .driver = {
1226                 .name = "s2mps11-pmic",
1227         },
1228         .probe = s2mps11_pmic_probe,
1229         .id_table = s2mps11_pmic_id,
1230 };
1231
1232 module_platform_driver(s2mps11_pmic_driver);
1233
1234 /* Module information */
1235 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
1236 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver");
1237 MODULE_LICENSE("GPL");