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