| 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * Copyright 2020 NXP. |
| 4 | * NXP PCA9450 pmic driver |
| 5 | */ |
| 6 | |
| 7 | #include <linux/err.h> |
| 8 | #include <linux/gpio/consumer.h> |
| 9 | #include <linux/i2c.h> |
| 10 | #include <linux/interrupt.h> |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/of.h> |
| 14 | #include <linux/platform_device.h> |
| 15 | #include <linux/regulator/driver.h> |
| 16 | #include <linux/regulator/machine.h> |
| 17 | #include <linux/regulator/of_regulator.h> |
| 18 | #include <linux/regulator/pca9450.h> |
| 19 | |
| 20 | struct pc9450_dvs_config { |
| 21 | unsigned int run_reg; /* dvs0 */ |
| 22 | unsigned int run_mask; |
| 23 | unsigned int standby_reg; /* dvs1 */ |
| 24 | unsigned int standby_mask; |
| 25 | }; |
| 26 | |
| 27 | struct pca9450_regulator_desc { |
| 28 | struct regulator_desc desc; |
| 29 | const struct pc9450_dvs_config dvs; |
| 30 | }; |
| 31 | |
| 32 | struct pca9450 { |
| 33 | struct device *dev; |
| 34 | struct regmap *regmap; |
| 35 | struct gpio_desc *sd_vsel_gpio; |
| 36 | enum pca9450_chip_type type; |
| 37 | unsigned int rcnt; |
| 38 | int irq; |
| 39 | }; |
| 40 | |
| 41 | static const struct regmap_range pca9450_status_range = { |
| 42 | .range_min = PCA9450_REG_INT1, |
| 43 | .range_max = PCA9450_REG_PWRON_STAT, |
| 44 | }; |
| 45 | |
| 46 | static const struct regmap_access_table pca9450_volatile_regs = { |
| 47 | .yes_ranges = &pca9450_status_range, |
| 48 | .n_yes_ranges = 1, |
| 49 | }; |
| 50 | |
| 51 | static const struct regmap_config pca9450_regmap_config = { |
| 52 | .reg_bits = 8, |
| 53 | .val_bits = 8, |
| 54 | .volatile_table = &pca9450_volatile_regs, |
| 55 | .max_register = PCA9450_MAX_REGISTER - 1, |
| 56 | .cache_type = REGCACHE_MAPLE, |
| 57 | }; |
| 58 | |
| 59 | /* |
| 60 | * BUCK1/2/3 |
| 61 | * BUCK1RAM[1:0] BUCK1 DVS ramp rate setting |
| 62 | * 00: 25mV/1usec |
| 63 | * 01: 25mV/2usec |
| 64 | * 10: 25mV/4usec |
| 65 | * 11: 25mV/8usec |
| 66 | */ |
| 67 | static const unsigned int pca9450_dvs_buck_ramp_table[] = { |
| 68 | 25000, 12500, 6250, 3125 |
| 69 | }; |
| 70 | |
| 71 | static const struct regulator_ops pca9450_dvs_buck_regulator_ops = { |
| 72 | .enable = regulator_enable_regmap, |
| 73 | .disable = regulator_disable_regmap, |
| 74 | .is_enabled = regulator_is_enabled_regmap, |
| 75 | .list_voltage = regulator_list_voltage_linear_range, |
| 76 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
| 77 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
| 78 | .set_voltage_time_sel = regulator_set_voltage_time_sel, |
| 79 | .set_ramp_delay = regulator_set_ramp_delay_regmap, |
| 80 | }; |
| 81 | |
| 82 | static const struct regulator_ops pca9450_buck_regulator_ops = { |
| 83 | .enable = regulator_enable_regmap, |
| 84 | .disable = regulator_disable_regmap, |
| 85 | .is_enabled = regulator_is_enabled_regmap, |
| 86 | .list_voltage = regulator_list_voltage_linear_range, |
| 87 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
| 88 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
| 89 | .set_voltage_time_sel = regulator_set_voltage_time_sel, |
| 90 | }; |
| 91 | |
| 92 | static const struct regulator_ops pca9450_ldo_regulator_ops = { |
| 93 | .enable = regulator_enable_regmap, |
| 94 | .disable = regulator_disable_regmap, |
| 95 | .is_enabled = regulator_is_enabled_regmap, |
| 96 | .list_voltage = regulator_list_voltage_linear_range, |
| 97 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
| 98 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
| 99 | }; |
| 100 | |
| 101 | /* |
| 102 | * BUCK1/2/3 |
| 103 | * 0.60 to 2.1875V (12.5mV step) |
| 104 | */ |
| 105 | static const struct linear_range pca9450_dvs_buck_volts[] = { |
| 106 | REGULATOR_LINEAR_RANGE(600000, 0x00, 0x7F, 12500), |
| 107 | }; |
| 108 | |
| 109 | /* |
| 110 | * BUCK1/3 |
| 111 | * 0.65 to 2.2375V (12.5mV step) |
| 112 | */ |
| 113 | static const struct linear_range pca9451a_dvs_buck_volts[] = { |
| 114 | REGULATOR_LINEAR_RANGE(650000, 0x00, 0x7F, 12500), |
| 115 | }; |
| 116 | |
| 117 | /* |
| 118 | * BUCK4/5/6 |
| 119 | * 0.6V to 3.4V (25mV step) |
| 120 | */ |
| 121 | static const struct linear_range pca9450_buck_volts[] = { |
| 122 | REGULATOR_LINEAR_RANGE(600000, 0x00, 0x70, 25000), |
| 123 | REGULATOR_LINEAR_RANGE(3400000, 0x71, 0x7F, 0), |
| 124 | }; |
| 125 | |
| 126 | /* |
| 127 | * LDO1 |
| 128 | * 1.6 to 3.3V () |
| 129 | */ |
| 130 | static const struct linear_range pca9450_ldo1_volts[] = { |
| 131 | REGULATOR_LINEAR_RANGE(1600000, 0x00, 0x03, 100000), |
| 132 | REGULATOR_LINEAR_RANGE(3000000, 0x04, 0x07, 100000), |
| 133 | }; |
| 134 | |
| 135 | /* |
| 136 | * LDO2 |
| 137 | * 0.8 to 1.15V (50mV step) |
| 138 | */ |
| 139 | static const struct linear_range pca9450_ldo2_volts[] = { |
| 140 | REGULATOR_LINEAR_RANGE(800000, 0x00, 0x07, 50000), |
| 141 | }; |
| 142 | |
| 143 | /* |
| 144 | * LDO3/4 |
| 145 | * 0.8 to 3.3V (100mV step) |
| 146 | */ |
| 147 | static const struct linear_range pca9450_ldo34_volts[] = { |
| 148 | REGULATOR_LINEAR_RANGE(800000, 0x00, 0x19, 100000), |
| 149 | REGULATOR_LINEAR_RANGE(3300000, 0x1A, 0x1F, 0), |
| 150 | }; |
| 151 | |
| 152 | /* |
| 153 | * LDO5 |
| 154 | * 1.8 to 3.3V (100mV step) |
| 155 | */ |
| 156 | static const struct linear_range pca9450_ldo5_volts[] = { |
| 157 | REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), |
| 158 | }; |
| 159 | |
| 160 | static int buck_set_dvs(const struct regulator_desc *desc, |
| 161 | struct device_node *np, struct regmap *regmap, |
| 162 | char *prop, unsigned int reg, unsigned int mask) |
| 163 | { |
| 164 | int ret, i; |
| 165 | uint32_t uv; |
| 166 | |
| 167 | ret = of_property_read_u32(np, prop, &uv); |
| 168 | if (ret == -EINVAL) |
| 169 | return 0; |
| 170 | else if (ret) |
| 171 | return ret; |
| 172 | |
| 173 | for (i = 0; i < desc->n_voltages; i++) { |
| 174 | ret = regulator_desc_list_voltage_linear_range(desc, i); |
| 175 | if (ret < 0) |
| 176 | continue; |
| 177 | if (ret == uv) { |
| 178 | i <<= ffs(desc->vsel_mask) - 1; |
| 179 | ret = regmap_update_bits(regmap, reg, mask, i); |
| 180 | break; |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | if (ret == 0) { |
| 185 | struct pca9450_regulator_desc *regulator = container_of(desc, |
| 186 | struct pca9450_regulator_desc, desc); |
| 187 | |
| 188 | /* Enable DVS control through PMIC_STBY_REQ for this BUCK */ |
| 189 | ret = regmap_update_bits(regmap, regulator->desc.enable_reg, |
| 190 | BUCK1_DVS_CTRL, BUCK1_DVS_CTRL); |
| 191 | } |
| 192 | return ret; |
| 193 | } |
| 194 | |
| 195 | static int pca9450_set_dvs_levels(struct device_node *np, |
| 196 | const struct regulator_desc *desc, |
| 197 | struct regulator_config *cfg) |
| 198 | { |
| 199 | struct pca9450_regulator_desc *data = container_of(desc, |
| 200 | struct pca9450_regulator_desc, desc); |
| 201 | const struct pc9450_dvs_config *dvs = &data->dvs; |
| 202 | unsigned int reg, mask; |
| 203 | char *prop; |
| 204 | int i, ret = 0; |
| 205 | |
| 206 | for (i = 0; i < PCA9450_DVS_LEVEL_MAX; i++) { |
| 207 | switch (i) { |
| 208 | case PCA9450_DVS_LEVEL_RUN: |
| 209 | prop = "nxp,dvs-run-voltage"; |
| 210 | reg = dvs->run_reg; |
| 211 | mask = dvs->run_mask; |
| 212 | break; |
| 213 | case PCA9450_DVS_LEVEL_STANDBY: |
| 214 | prop = "nxp,dvs-standby-voltage"; |
| 215 | reg = dvs->standby_reg; |
| 216 | mask = dvs->standby_mask; |
| 217 | break; |
| 218 | default: |
| 219 | return -EINVAL; |
| 220 | } |
| 221 | |
| 222 | ret = buck_set_dvs(desc, np, cfg->regmap, prop, reg, mask); |
| 223 | if (ret) |
| 224 | break; |
| 225 | } |
| 226 | |
| 227 | return ret; |
| 228 | } |
| 229 | |
| 230 | static const struct pca9450_regulator_desc pca9450a_regulators[] = { |
| 231 | { |
| 232 | .desc = { |
| 233 | .name = "buck1", |
| 234 | .of_match = of_match_ptr("BUCK1"), |
| 235 | .regulators_node = of_match_ptr("regulators"), |
| 236 | .id = PCA9450_BUCK1, |
| 237 | .ops = &pca9450_dvs_buck_regulator_ops, |
| 238 | .type = REGULATOR_VOLTAGE, |
| 239 | .n_voltages = PCA9450_BUCK1_VOLTAGE_NUM, |
| 240 | .linear_ranges = pca9450_dvs_buck_volts, |
| 241 | .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), |
| 242 | .vsel_reg = PCA9450_REG_BUCK1OUT_DVS0, |
| 243 | .vsel_mask = BUCK1OUT_DVS0_MASK, |
| 244 | .enable_reg = PCA9450_REG_BUCK1CTRL, |
| 245 | .enable_mask = BUCK1_ENMODE_MASK, |
| 246 | .ramp_reg = PCA9450_REG_BUCK1CTRL, |
| 247 | .ramp_mask = BUCK1_RAMP_MASK, |
| 248 | .ramp_delay_table = pca9450_dvs_buck_ramp_table, |
| 249 | .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), |
| 250 | .owner = THIS_MODULE, |
| 251 | .of_parse_cb = pca9450_set_dvs_levels, |
| 252 | }, |
| 253 | .dvs = { |
| 254 | .run_reg = PCA9450_REG_BUCK1OUT_DVS0, |
| 255 | .run_mask = BUCK1OUT_DVS0_MASK, |
| 256 | .standby_reg = PCA9450_REG_BUCK1OUT_DVS1, |
| 257 | .standby_mask = BUCK1OUT_DVS1_MASK, |
| 258 | }, |
| 259 | }, |
| 260 | { |
| 261 | .desc = { |
| 262 | .name = "buck2", |
| 263 | .of_match = of_match_ptr("BUCK2"), |
| 264 | .regulators_node = of_match_ptr("regulators"), |
| 265 | .id = PCA9450_BUCK2, |
| 266 | .ops = &pca9450_dvs_buck_regulator_ops, |
| 267 | .type = REGULATOR_VOLTAGE, |
| 268 | .n_voltages = PCA9450_BUCK2_VOLTAGE_NUM, |
| 269 | .linear_ranges = pca9450_dvs_buck_volts, |
| 270 | .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), |
| 271 | .vsel_reg = PCA9450_REG_BUCK2OUT_DVS0, |
| 272 | .vsel_mask = BUCK2OUT_DVS0_MASK, |
| 273 | .enable_reg = PCA9450_REG_BUCK2CTRL, |
| 274 | .enable_mask = BUCK2_ENMODE_MASK, |
| 275 | .ramp_reg = PCA9450_REG_BUCK2CTRL, |
| 276 | .ramp_mask = BUCK2_RAMP_MASK, |
| 277 | .ramp_delay_table = pca9450_dvs_buck_ramp_table, |
| 278 | .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), |
| 279 | .owner = THIS_MODULE, |
| 280 | .of_parse_cb = pca9450_set_dvs_levels, |
| 281 | }, |
| 282 | .dvs = { |
| 283 | .run_reg = PCA9450_REG_BUCK2OUT_DVS0, |
| 284 | .run_mask = BUCK2OUT_DVS0_MASK, |
| 285 | .standby_reg = PCA9450_REG_BUCK2OUT_DVS1, |
| 286 | .standby_mask = BUCK2OUT_DVS1_MASK, |
| 287 | }, |
| 288 | }, |
| 289 | { |
| 290 | .desc = { |
| 291 | .name = "buck3", |
| 292 | .of_match = of_match_ptr("BUCK3"), |
| 293 | .regulators_node = of_match_ptr("regulators"), |
| 294 | .id = PCA9450_BUCK3, |
| 295 | .ops = &pca9450_dvs_buck_regulator_ops, |
| 296 | .type = REGULATOR_VOLTAGE, |
| 297 | .n_voltages = PCA9450_BUCK3_VOLTAGE_NUM, |
| 298 | .linear_ranges = pca9450_dvs_buck_volts, |
| 299 | .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), |
| 300 | .vsel_reg = PCA9450_REG_BUCK3OUT_DVS0, |
| 301 | .vsel_mask = BUCK3OUT_DVS0_MASK, |
| 302 | .enable_reg = PCA9450_REG_BUCK3CTRL, |
| 303 | .enable_mask = BUCK3_ENMODE_MASK, |
| 304 | .ramp_reg = PCA9450_REG_BUCK3CTRL, |
| 305 | .ramp_mask = BUCK3_RAMP_MASK, |
| 306 | .ramp_delay_table = pca9450_dvs_buck_ramp_table, |
| 307 | .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), |
| 308 | .owner = THIS_MODULE, |
| 309 | .of_parse_cb = pca9450_set_dvs_levels, |
| 310 | }, |
| 311 | .dvs = { |
| 312 | .run_reg = PCA9450_REG_BUCK3OUT_DVS0, |
| 313 | .run_mask = BUCK3OUT_DVS0_MASK, |
| 314 | .standby_reg = PCA9450_REG_BUCK3OUT_DVS1, |
| 315 | .standby_mask = BUCK3OUT_DVS1_MASK, |
| 316 | }, |
| 317 | }, |
| 318 | { |
| 319 | .desc = { |
| 320 | .name = "buck4", |
| 321 | .of_match = of_match_ptr("BUCK4"), |
| 322 | .regulators_node = of_match_ptr("regulators"), |
| 323 | .id = PCA9450_BUCK4, |
| 324 | .ops = &pca9450_buck_regulator_ops, |
| 325 | .type = REGULATOR_VOLTAGE, |
| 326 | .n_voltages = PCA9450_BUCK4_VOLTAGE_NUM, |
| 327 | .linear_ranges = pca9450_buck_volts, |
| 328 | .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), |
| 329 | .vsel_reg = PCA9450_REG_BUCK4OUT, |
| 330 | .vsel_mask = BUCK4OUT_MASK, |
| 331 | .enable_reg = PCA9450_REG_BUCK4CTRL, |
| 332 | .enable_mask = BUCK4_ENMODE_MASK, |
| 333 | .owner = THIS_MODULE, |
| 334 | }, |
| 335 | }, |
| 336 | { |
| 337 | .desc = { |
| 338 | .name = "buck5", |
| 339 | .of_match = of_match_ptr("BUCK5"), |
| 340 | .regulators_node = of_match_ptr("regulators"), |
| 341 | .id = PCA9450_BUCK5, |
| 342 | .ops = &pca9450_buck_regulator_ops, |
| 343 | .type = REGULATOR_VOLTAGE, |
| 344 | .n_voltages = PCA9450_BUCK5_VOLTAGE_NUM, |
| 345 | .linear_ranges = pca9450_buck_volts, |
| 346 | .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), |
| 347 | .vsel_reg = PCA9450_REG_BUCK5OUT, |
| 348 | .vsel_mask = BUCK5OUT_MASK, |
| 349 | .enable_reg = PCA9450_REG_BUCK5CTRL, |
| 350 | .enable_mask = BUCK5_ENMODE_MASK, |
| 351 | .owner = THIS_MODULE, |
| 352 | }, |
| 353 | }, |
| 354 | { |
| 355 | .desc = { |
| 356 | .name = "buck6", |
| 357 | .of_match = of_match_ptr("BUCK6"), |
| 358 | .regulators_node = of_match_ptr("regulators"), |
| 359 | .id = PCA9450_BUCK6, |
| 360 | .ops = &pca9450_buck_regulator_ops, |
| 361 | .type = REGULATOR_VOLTAGE, |
| 362 | .n_voltages = PCA9450_BUCK6_VOLTAGE_NUM, |
| 363 | .linear_ranges = pca9450_buck_volts, |
| 364 | .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), |
| 365 | .vsel_reg = PCA9450_REG_BUCK6OUT, |
| 366 | .vsel_mask = BUCK6OUT_MASK, |
| 367 | .enable_reg = PCA9450_REG_BUCK6CTRL, |
| 368 | .enable_mask = BUCK6_ENMODE_MASK, |
| 369 | .owner = THIS_MODULE, |
| 370 | }, |
| 371 | }, |
| 372 | { |
| 373 | .desc = { |
| 374 | .name = "ldo1", |
| 375 | .of_match = of_match_ptr("LDO1"), |
| 376 | .regulators_node = of_match_ptr("regulators"), |
| 377 | .id = PCA9450_LDO1, |
| 378 | .ops = &pca9450_ldo_regulator_ops, |
| 379 | .type = REGULATOR_VOLTAGE, |
| 380 | .n_voltages = PCA9450_LDO1_VOLTAGE_NUM, |
| 381 | .linear_ranges = pca9450_ldo1_volts, |
| 382 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo1_volts), |
| 383 | .vsel_reg = PCA9450_REG_LDO1CTRL, |
| 384 | .vsel_mask = LDO1OUT_MASK, |
| 385 | .enable_reg = PCA9450_REG_LDO1CTRL, |
| 386 | .enable_mask = LDO1_EN_MASK, |
| 387 | .owner = THIS_MODULE, |
| 388 | }, |
| 389 | }, |
| 390 | { |
| 391 | .desc = { |
| 392 | .name = "ldo2", |
| 393 | .of_match = of_match_ptr("LDO2"), |
| 394 | .regulators_node = of_match_ptr("regulators"), |
| 395 | .id = PCA9450_LDO2, |
| 396 | .ops = &pca9450_ldo_regulator_ops, |
| 397 | .type = REGULATOR_VOLTAGE, |
| 398 | .n_voltages = PCA9450_LDO2_VOLTAGE_NUM, |
| 399 | .linear_ranges = pca9450_ldo2_volts, |
| 400 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo2_volts), |
| 401 | .vsel_reg = PCA9450_REG_LDO2CTRL, |
| 402 | .vsel_mask = LDO2OUT_MASK, |
| 403 | .enable_reg = PCA9450_REG_LDO2CTRL, |
| 404 | .enable_mask = LDO2_EN_MASK, |
| 405 | .owner = THIS_MODULE, |
| 406 | }, |
| 407 | }, |
| 408 | { |
| 409 | .desc = { |
| 410 | .name = "ldo3", |
| 411 | .of_match = of_match_ptr("LDO3"), |
| 412 | .regulators_node = of_match_ptr("regulators"), |
| 413 | .id = PCA9450_LDO3, |
| 414 | .ops = &pca9450_ldo_regulator_ops, |
| 415 | .type = REGULATOR_VOLTAGE, |
| 416 | .n_voltages = PCA9450_LDO3_VOLTAGE_NUM, |
| 417 | .linear_ranges = pca9450_ldo34_volts, |
| 418 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo34_volts), |
| 419 | .vsel_reg = PCA9450_REG_LDO3CTRL, |
| 420 | .vsel_mask = LDO3OUT_MASK, |
| 421 | .enable_reg = PCA9450_REG_LDO3CTRL, |
| 422 | .enable_mask = LDO3_EN_MASK, |
| 423 | .owner = THIS_MODULE, |
| 424 | }, |
| 425 | }, |
| 426 | { |
| 427 | .desc = { |
| 428 | .name = "ldo4", |
| 429 | .of_match = of_match_ptr("LDO4"), |
| 430 | .regulators_node = of_match_ptr("regulators"), |
| 431 | .id = PCA9450_LDO4, |
| 432 | .ops = &pca9450_ldo_regulator_ops, |
| 433 | .type = REGULATOR_VOLTAGE, |
| 434 | .n_voltages = PCA9450_LDO4_VOLTAGE_NUM, |
| 435 | .linear_ranges = pca9450_ldo34_volts, |
| 436 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo34_volts), |
| 437 | .vsel_reg = PCA9450_REG_LDO4CTRL, |
| 438 | .vsel_mask = LDO4OUT_MASK, |
| 439 | .enable_reg = PCA9450_REG_LDO4CTRL, |
| 440 | .enable_mask = LDO4_EN_MASK, |
| 441 | .owner = THIS_MODULE, |
| 442 | }, |
| 443 | }, |
| 444 | { |
| 445 | .desc = { |
| 446 | .name = "ldo5", |
| 447 | .of_match = of_match_ptr("LDO5"), |
| 448 | .regulators_node = of_match_ptr("regulators"), |
| 449 | .id = PCA9450_LDO5, |
| 450 | .ops = &pca9450_ldo_regulator_ops, |
| 451 | .type = REGULATOR_VOLTAGE, |
| 452 | .n_voltages = PCA9450_LDO5_VOLTAGE_NUM, |
| 453 | .linear_ranges = pca9450_ldo5_volts, |
| 454 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo5_volts), |
| 455 | .vsel_reg = PCA9450_REG_LDO5CTRL_H, |
| 456 | .vsel_mask = LDO5HOUT_MASK, |
| 457 | .enable_reg = PCA9450_REG_LDO5CTRL_H, |
| 458 | .enable_mask = LDO5H_EN_MASK, |
| 459 | .owner = THIS_MODULE, |
| 460 | }, |
| 461 | }, |
| 462 | }; |
| 463 | |
| 464 | /* |
| 465 | * Buck3 removed on PCA9450B and connected with Buck1 internal for dual phase |
| 466 | * on PCA9450C as no Buck3. |
| 467 | */ |
| 468 | static const struct pca9450_regulator_desc pca9450bc_regulators[] = { |
| 469 | { |
| 470 | .desc = { |
| 471 | .name = "buck1", |
| 472 | .of_match = of_match_ptr("BUCK1"), |
| 473 | .regulators_node = of_match_ptr("regulators"), |
| 474 | .id = PCA9450_BUCK1, |
| 475 | .ops = &pca9450_dvs_buck_regulator_ops, |
| 476 | .type = REGULATOR_VOLTAGE, |
| 477 | .n_voltages = PCA9450_BUCK1_VOLTAGE_NUM, |
| 478 | .linear_ranges = pca9450_dvs_buck_volts, |
| 479 | .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), |
| 480 | .vsel_reg = PCA9450_REG_BUCK1OUT_DVS0, |
| 481 | .vsel_mask = BUCK1OUT_DVS0_MASK, |
| 482 | .enable_reg = PCA9450_REG_BUCK1CTRL, |
| 483 | .enable_mask = BUCK1_ENMODE_MASK, |
| 484 | .ramp_reg = PCA9450_REG_BUCK1CTRL, |
| 485 | .ramp_mask = BUCK1_RAMP_MASK, |
| 486 | .ramp_delay_table = pca9450_dvs_buck_ramp_table, |
| 487 | .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), |
| 488 | .owner = THIS_MODULE, |
| 489 | .of_parse_cb = pca9450_set_dvs_levels, |
| 490 | }, |
| 491 | .dvs = { |
| 492 | .run_reg = PCA9450_REG_BUCK1OUT_DVS0, |
| 493 | .run_mask = BUCK1OUT_DVS0_MASK, |
| 494 | .standby_reg = PCA9450_REG_BUCK1OUT_DVS1, |
| 495 | .standby_mask = BUCK1OUT_DVS1_MASK, |
| 496 | }, |
| 497 | }, |
| 498 | { |
| 499 | .desc = { |
| 500 | .name = "buck2", |
| 501 | .of_match = of_match_ptr("BUCK2"), |
| 502 | .regulators_node = of_match_ptr("regulators"), |
| 503 | .id = PCA9450_BUCK2, |
| 504 | .ops = &pca9450_dvs_buck_regulator_ops, |
| 505 | .type = REGULATOR_VOLTAGE, |
| 506 | .n_voltages = PCA9450_BUCK2_VOLTAGE_NUM, |
| 507 | .linear_ranges = pca9450_dvs_buck_volts, |
| 508 | .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), |
| 509 | .vsel_reg = PCA9450_REG_BUCK2OUT_DVS0, |
| 510 | .vsel_mask = BUCK2OUT_DVS0_MASK, |
| 511 | .enable_reg = PCA9450_REG_BUCK2CTRL, |
| 512 | .enable_mask = BUCK2_ENMODE_MASK, |
| 513 | .ramp_reg = PCA9450_REG_BUCK2CTRL, |
| 514 | .ramp_mask = BUCK2_RAMP_MASK, |
| 515 | .ramp_delay_table = pca9450_dvs_buck_ramp_table, |
| 516 | .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), |
| 517 | .owner = THIS_MODULE, |
| 518 | .of_parse_cb = pca9450_set_dvs_levels, |
| 519 | }, |
| 520 | .dvs = { |
| 521 | .run_reg = PCA9450_REG_BUCK2OUT_DVS0, |
| 522 | .run_mask = BUCK2OUT_DVS0_MASK, |
| 523 | .standby_reg = PCA9450_REG_BUCK2OUT_DVS1, |
| 524 | .standby_mask = BUCK2OUT_DVS1_MASK, |
| 525 | }, |
| 526 | }, |
| 527 | { |
| 528 | .desc = { |
| 529 | .name = "buck4", |
| 530 | .of_match = of_match_ptr("BUCK4"), |
| 531 | .regulators_node = of_match_ptr("regulators"), |
| 532 | .id = PCA9450_BUCK4, |
| 533 | .ops = &pca9450_buck_regulator_ops, |
| 534 | .type = REGULATOR_VOLTAGE, |
| 535 | .n_voltages = PCA9450_BUCK4_VOLTAGE_NUM, |
| 536 | .linear_ranges = pca9450_buck_volts, |
| 537 | .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), |
| 538 | .vsel_reg = PCA9450_REG_BUCK4OUT, |
| 539 | .vsel_mask = BUCK4OUT_MASK, |
| 540 | .enable_reg = PCA9450_REG_BUCK4CTRL, |
| 541 | .enable_mask = BUCK4_ENMODE_MASK, |
| 542 | .owner = THIS_MODULE, |
| 543 | }, |
| 544 | }, |
| 545 | { |
| 546 | .desc = { |
| 547 | .name = "buck5", |
| 548 | .of_match = of_match_ptr("BUCK5"), |
| 549 | .regulators_node = of_match_ptr("regulators"), |
| 550 | .id = PCA9450_BUCK5, |
| 551 | .ops = &pca9450_buck_regulator_ops, |
| 552 | .type = REGULATOR_VOLTAGE, |
| 553 | .n_voltages = PCA9450_BUCK5_VOLTAGE_NUM, |
| 554 | .linear_ranges = pca9450_buck_volts, |
| 555 | .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), |
| 556 | .vsel_reg = PCA9450_REG_BUCK5OUT, |
| 557 | .vsel_mask = BUCK5OUT_MASK, |
| 558 | .enable_reg = PCA9450_REG_BUCK5CTRL, |
| 559 | .enable_mask = BUCK5_ENMODE_MASK, |
| 560 | .owner = THIS_MODULE, |
| 561 | }, |
| 562 | }, |
| 563 | { |
| 564 | .desc = { |
| 565 | .name = "buck6", |
| 566 | .of_match = of_match_ptr("BUCK6"), |
| 567 | .regulators_node = of_match_ptr("regulators"), |
| 568 | .id = PCA9450_BUCK6, |
| 569 | .ops = &pca9450_buck_regulator_ops, |
| 570 | .type = REGULATOR_VOLTAGE, |
| 571 | .n_voltages = PCA9450_BUCK6_VOLTAGE_NUM, |
| 572 | .linear_ranges = pca9450_buck_volts, |
| 573 | .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), |
| 574 | .vsel_reg = PCA9450_REG_BUCK6OUT, |
| 575 | .vsel_mask = BUCK6OUT_MASK, |
| 576 | .enable_reg = PCA9450_REG_BUCK6CTRL, |
| 577 | .enable_mask = BUCK6_ENMODE_MASK, |
| 578 | .owner = THIS_MODULE, |
| 579 | }, |
| 580 | }, |
| 581 | { |
| 582 | .desc = { |
| 583 | .name = "ldo1", |
| 584 | .of_match = of_match_ptr("LDO1"), |
| 585 | .regulators_node = of_match_ptr("regulators"), |
| 586 | .id = PCA9450_LDO1, |
| 587 | .ops = &pca9450_ldo_regulator_ops, |
| 588 | .type = REGULATOR_VOLTAGE, |
| 589 | .n_voltages = PCA9450_LDO1_VOLTAGE_NUM, |
| 590 | .linear_ranges = pca9450_ldo1_volts, |
| 591 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo1_volts), |
| 592 | .vsel_reg = PCA9450_REG_LDO1CTRL, |
| 593 | .vsel_mask = LDO1OUT_MASK, |
| 594 | .enable_reg = PCA9450_REG_LDO1CTRL, |
| 595 | .enable_mask = LDO1_EN_MASK, |
| 596 | .owner = THIS_MODULE, |
| 597 | }, |
| 598 | }, |
| 599 | { |
| 600 | .desc = { |
| 601 | .name = "ldo2", |
| 602 | .of_match = of_match_ptr("LDO2"), |
| 603 | .regulators_node = of_match_ptr("regulators"), |
| 604 | .id = PCA9450_LDO2, |
| 605 | .ops = &pca9450_ldo_regulator_ops, |
| 606 | .type = REGULATOR_VOLTAGE, |
| 607 | .n_voltages = PCA9450_LDO2_VOLTAGE_NUM, |
| 608 | .linear_ranges = pca9450_ldo2_volts, |
| 609 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo2_volts), |
| 610 | .vsel_reg = PCA9450_REG_LDO2CTRL, |
| 611 | .vsel_mask = LDO2OUT_MASK, |
| 612 | .enable_reg = PCA9450_REG_LDO2CTRL, |
| 613 | .enable_mask = LDO2_EN_MASK, |
| 614 | .owner = THIS_MODULE, |
| 615 | }, |
| 616 | }, |
| 617 | { |
| 618 | .desc = { |
| 619 | .name = "ldo3", |
| 620 | .of_match = of_match_ptr("LDO3"), |
| 621 | .regulators_node = of_match_ptr("regulators"), |
| 622 | .id = PCA9450_LDO3, |
| 623 | .ops = &pca9450_ldo_regulator_ops, |
| 624 | .type = REGULATOR_VOLTAGE, |
| 625 | .n_voltages = PCA9450_LDO3_VOLTAGE_NUM, |
| 626 | .linear_ranges = pca9450_ldo34_volts, |
| 627 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo34_volts), |
| 628 | .vsel_reg = PCA9450_REG_LDO3CTRL, |
| 629 | .vsel_mask = LDO3OUT_MASK, |
| 630 | .enable_reg = PCA9450_REG_LDO3CTRL, |
| 631 | .enable_mask = LDO3_EN_MASK, |
| 632 | .owner = THIS_MODULE, |
| 633 | }, |
| 634 | }, |
| 635 | { |
| 636 | .desc = { |
| 637 | .name = "ldo4", |
| 638 | .of_match = of_match_ptr("LDO4"), |
| 639 | .regulators_node = of_match_ptr("regulators"), |
| 640 | .id = PCA9450_LDO4, |
| 641 | .ops = &pca9450_ldo_regulator_ops, |
| 642 | .type = REGULATOR_VOLTAGE, |
| 643 | .n_voltages = PCA9450_LDO4_VOLTAGE_NUM, |
| 644 | .linear_ranges = pca9450_ldo34_volts, |
| 645 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo34_volts), |
| 646 | .vsel_reg = PCA9450_REG_LDO4CTRL, |
| 647 | .vsel_mask = LDO4OUT_MASK, |
| 648 | .enable_reg = PCA9450_REG_LDO4CTRL, |
| 649 | .enable_mask = LDO4_EN_MASK, |
| 650 | .owner = THIS_MODULE, |
| 651 | }, |
| 652 | }, |
| 653 | { |
| 654 | .desc = { |
| 655 | .name = "ldo5", |
| 656 | .of_match = of_match_ptr("LDO5"), |
| 657 | .regulators_node = of_match_ptr("regulators"), |
| 658 | .id = PCA9450_LDO5, |
| 659 | .ops = &pca9450_ldo_regulator_ops, |
| 660 | .type = REGULATOR_VOLTAGE, |
| 661 | .n_voltages = PCA9450_LDO5_VOLTAGE_NUM, |
| 662 | .linear_ranges = pca9450_ldo5_volts, |
| 663 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo5_volts), |
| 664 | .vsel_reg = PCA9450_REG_LDO5CTRL_H, |
| 665 | .vsel_mask = LDO5HOUT_MASK, |
| 666 | .enable_reg = PCA9450_REG_LDO5CTRL_H, |
| 667 | .enable_mask = LDO5H_EN_MASK, |
| 668 | .owner = THIS_MODULE, |
| 669 | }, |
| 670 | }, |
| 671 | }; |
| 672 | |
| 673 | static const struct pca9450_regulator_desc pca9451a_regulators[] = { |
| 674 | { |
| 675 | .desc = { |
| 676 | .name = "buck1", |
| 677 | .of_match = of_match_ptr("BUCK1"), |
| 678 | .regulators_node = of_match_ptr("regulators"), |
| 679 | .id = PCA9450_BUCK1, |
| 680 | .ops = &pca9450_dvs_buck_regulator_ops, |
| 681 | .type = REGULATOR_VOLTAGE, |
| 682 | .n_voltages = PCA9450_BUCK1_VOLTAGE_NUM, |
| 683 | .linear_ranges = pca9451a_dvs_buck_volts, |
| 684 | .n_linear_ranges = ARRAY_SIZE(pca9451a_dvs_buck_volts), |
| 685 | .vsel_reg = PCA9450_REG_BUCK1OUT_DVS0, |
| 686 | .vsel_mask = BUCK1OUT_DVS0_MASK, |
| 687 | .enable_reg = PCA9450_REG_BUCK1CTRL, |
| 688 | .enable_mask = BUCK1_ENMODE_MASK, |
| 689 | .enable_val = BUCK_ENMODE_ONREQ, |
| 690 | .ramp_mask = BUCK1_RAMP_MASK, |
| 691 | .ramp_delay_table = pca9450_dvs_buck_ramp_table, |
| 692 | .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), |
| 693 | .owner = THIS_MODULE, |
| 694 | .of_parse_cb = pca9450_set_dvs_levels, |
| 695 | }, |
| 696 | .dvs = { |
| 697 | .run_reg = PCA9450_REG_BUCK1OUT_DVS0, |
| 698 | .run_mask = BUCK1OUT_DVS0_MASK, |
| 699 | .standby_reg = PCA9450_REG_BUCK1OUT_DVS1, |
| 700 | .standby_mask = BUCK1OUT_DVS1_MASK, |
| 701 | }, |
| 702 | }, |
| 703 | { |
| 704 | .desc = { |
| 705 | .name = "buck2", |
| 706 | .of_match = of_match_ptr("BUCK2"), |
| 707 | .regulators_node = of_match_ptr("regulators"), |
| 708 | .id = PCA9450_BUCK2, |
| 709 | .ops = &pca9450_dvs_buck_regulator_ops, |
| 710 | .type = REGULATOR_VOLTAGE, |
| 711 | .n_voltages = PCA9450_BUCK2_VOLTAGE_NUM, |
| 712 | .linear_ranges = pca9450_dvs_buck_volts, |
| 713 | .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), |
| 714 | .vsel_reg = PCA9450_REG_BUCK2OUT_DVS0, |
| 715 | .vsel_mask = BUCK2OUT_DVS0_MASK, |
| 716 | .enable_reg = PCA9450_REG_BUCK2CTRL, |
| 717 | .enable_mask = BUCK2_ENMODE_MASK, |
| 718 | .enable_val = BUCK_ENMODE_ONREQ_STBYREQ, |
| 719 | .ramp_mask = BUCK2_RAMP_MASK, |
| 720 | .ramp_delay_table = pca9450_dvs_buck_ramp_table, |
| 721 | .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), |
| 722 | .owner = THIS_MODULE, |
| 723 | .of_parse_cb = pca9450_set_dvs_levels, |
| 724 | }, |
| 725 | .dvs = { |
| 726 | .run_reg = PCA9450_REG_BUCK2OUT_DVS0, |
| 727 | .run_mask = BUCK2OUT_DVS0_MASK, |
| 728 | .standby_reg = PCA9450_REG_BUCK2OUT_DVS1, |
| 729 | .standby_mask = BUCK2OUT_DVS1_MASK, |
| 730 | }, |
| 731 | }, |
| 732 | { |
| 733 | .desc = { |
| 734 | .name = "buck4", |
| 735 | .of_match = of_match_ptr("BUCK4"), |
| 736 | .regulators_node = of_match_ptr("regulators"), |
| 737 | .id = PCA9450_BUCK4, |
| 738 | .ops = &pca9450_buck_regulator_ops, |
| 739 | .type = REGULATOR_VOLTAGE, |
| 740 | .n_voltages = PCA9450_BUCK4_VOLTAGE_NUM, |
| 741 | .linear_ranges = pca9450_buck_volts, |
| 742 | .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), |
| 743 | .vsel_reg = PCA9450_REG_BUCK4OUT, |
| 744 | .vsel_mask = BUCK4OUT_MASK, |
| 745 | .enable_reg = PCA9450_REG_BUCK4CTRL, |
| 746 | .enable_mask = BUCK4_ENMODE_MASK, |
| 747 | .enable_val = BUCK_ENMODE_ONREQ, |
| 748 | .owner = THIS_MODULE, |
| 749 | }, |
| 750 | }, |
| 751 | { |
| 752 | .desc = { |
| 753 | .name = "buck5", |
| 754 | .of_match = of_match_ptr("BUCK5"), |
| 755 | .regulators_node = of_match_ptr("regulators"), |
| 756 | .id = PCA9450_BUCK5, |
| 757 | .ops = &pca9450_buck_regulator_ops, |
| 758 | .type = REGULATOR_VOLTAGE, |
| 759 | .n_voltages = PCA9450_BUCK5_VOLTAGE_NUM, |
| 760 | .linear_ranges = pca9450_buck_volts, |
| 761 | .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), |
| 762 | .vsel_reg = PCA9450_REG_BUCK5OUT, |
| 763 | .vsel_mask = BUCK5OUT_MASK, |
| 764 | .enable_reg = PCA9450_REG_BUCK5CTRL, |
| 765 | .enable_mask = BUCK5_ENMODE_MASK, |
| 766 | .enable_val = BUCK_ENMODE_ONREQ, |
| 767 | .owner = THIS_MODULE, |
| 768 | }, |
| 769 | }, |
| 770 | { |
| 771 | .desc = { |
| 772 | .name = "buck6", |
| 773 | .of_match = of_match_ptr("BUCK6"), |
| 774 | .regulators_node = of_match_ptr("regulators"), |
| 775 | .id = PCA9450_BUCK6, |
| 776 | .ops = &pca9450_buck_regulator_ops, |
| 777 | .type = REGULATOR_VOLTAGE, |
| 778 | .n_voltages = PCA9450_BUCK6_VOLTAGE_NUM, |
| 779 | .linear_ranges = pca9450_buck_volts, |
| 780 | .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), |
| 781 | .vsel_reg = PCA9450_REG_BUCK6OUT, |
| 782 | .vsel_mask = BUCK6OUT_MASK, |
| 783 | .enable_reg = PCA9450_REG_BUCK6CTRL, |
| 784 | .enable_mask = BUCK6_ENMODE_MASK, |
| 785 | .enable_val = BUCK_ENMODE_ONREQ, |
| 786 | .owner = THIS_MODULE, |
| 787 | }, |
| 788 | }, |
| 789 | { |
| 790 | .desc = { |
| 791 | .name = "ldo1", |
| 792 | .of_match = of_match_ptr("LDO1"), |
| 793 | .regulators_node = of_match_ptr("regulators"), |
| 794 | .id = PCA9450_LDO1, |
| 795 | .ops = &pca9450_ldo_regulator_ops, |
| 796 | .type = REGULATOR_VOLTAGE, |
| 797 | .n_voltages = PCA9450_LDO1_VOLTAGE_NUM, |
| 798 | .linear_ranges = pca9450_ldo1_volts, |
| 799 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo1_volts), |
| 800 | .vsel_reg = PCA9450_REG_LDO1CTRL, |
| 801 | .vsel_mask = LDO1OUT_MASK, |
| 802 | .enable_reg = PCA9450_REG_LDO1CTRL, |
| 803 | .enable_mask = LDO1_EN_MASK, |
| 804 | .owner = THIS_MODULE, |
| 805 | }, |
| 806 | }, |
| 807 | { |
| 808 | .desc = { |
| 809 | .name = "ldo4", |
| 810 | .of_match = of_match_ptr("LDO4"), |
| 811 | .regulators_node = of_match_ptr("regulators"), |
| 812 | .id = PCA9450_LDO4, |
| 813 | .ops = &pca9450_ldo_regulator_ops, |
| 814 | .type = REGULATOR_VOLTAGE, |
| 815 | .n_voltages = PCA9450_LDO4_VOLTAGE_NUM, |
| 816 | .linear_ranges = pca9450_ldo34_volts, |
| 817 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo34_volts), |
| 818 | .vsel_reg = PCA9450_REG_LDO4CTRL, |
| 819 | .vsel_mask = LDO4OUT_MASK, |
| 820 | .enable_reg = PCA9450_REG_LDO4CTRL, |
| 821 | .enable_mask = LDO4_EN_MASK, |
| 822 | .owner = THIS_MODULE, |
| 823 | }, |
| 824 | }, |
| 825 | { |
| 826 | .desc = { |
| 827 | .name = "ldo5", |
| 828 | .of_match = of_match_ptr("LDO5"), |
| 829 | .regulators_node = of_match_ptr("regulators"), |
| 830 | .id = PCA9450_LDO5, |
| 831 | .ops = &pca9450_ldo_regulator_ops, |
| 832 | .type = REGULATOR_VOLTAGE, |
| 833 | .n_voltages = PCA9450_LDO5_VOLTAGE_NUM, |
| 834 | .linear_ranges = pca9450_ldo5_volts, |
| 835 | .n_linear_ranges = ARRAY_SIZE(pca9450_ldo5_volts), |
| 836 | .vsel_reg = PCA9450_REG_LDO5CTRL_H, |
| 837 | .vsel_mask = LDO5HOUT_MASK, |
| 838 | .enable_reg = PCA9450_REG_LDO5CTRL_H, |
| 839 | .enable_mask = LDO5H_EN_MASK, |
| 840 | .owner = THIS_MODULE, |
| 841 | }, |
| 842 | }, |
| 843 | }; |
| 844 | |
| 845 | static irqreturn_t pca9450_irq_handler(int irq, void *data) |
| 846 | { |
| 847 | struct pca9450 *pca9450 = data; |
| 848 | struct regmap *regmap = pca9450->regmap; |
| 849 | unsigned int status; |
| 850 | int ret; |
| 851 | |
| 852 | ret = regmap_read(regmap, PCA9450_REG_INT1, &status); |
| 853 | if (ret < 0) { |
| 854 | dev_err(pca9450->dev, |
| 855 | "Failed to read INT1(%d)\n", ret); |
| 856 | return IRQ_NONE; |
| 857 | } |
| 858 | |
| 859 | if (status & IRQ_PWRON) |
| 860 | dev_warn(pca9450->dev, "PWRON interrupt.\n"); |
| 861 | |
| 862 | if (status & IRQ_WDOGB) |
| 863 | dev_warn(pca9450->dev, "WDOGB interrupt.\n"); |
| 864 | |
| 865 | if (status & IRQ_VR_FLT1) |
| 866 | dev_warn(pca9450->dev, "VRFLT1 interrupt.\n"); |
| 867 | |
| 868 | if (status & IRQ_VR_FLT2) |
| 869 | dev_warn(pca9450->dev, "VRFLT2 interrupt.\n"); |
| 870 | |
| 871 | if (status & IRQ_LOWVSYS) |
| 872 | dev_warn(pca9450->dev, "LOWVSYS interrupt.\n"); |
| 873 | |
| 874 | if (status & IRQ_THERM_105) |
| 875 | dev_warn(pca9450->dev, "IRQ_THERM_105 interrupt.\n"); |
| 876 | |
| 877 | if (status & IRQ_THERM_125) |
| 878 | dev_warn(pca9450->dev, "IRQ_THERM_125 interrupt.\n"); |
| 879 | |
| 880 | return IRQ_HANDLED; |
| 881 | } |
| 882 | |
| 883 | static int pca9450_i2c_probe(struct i2c_client *i2c) |
| 884 | { |
| 885 | enum pca9450_chip_type type = (unsigned int)(uintptr_t) |
| 886 | of_device_get_match_data(&i2c->dev); |
| 887 | const struct pca9450_regulator_desc *regulator_desc; |
| 888 | struct regulator_config config = { }; |
| 889 | struct pca9450 *pca9450; |
| 890 | unsigned int device_id, i; |
| 891 | unsigned int reset_ctrl; |
| 892 | int ret; |
| 893 | |
| 894 | pca9450 = devm_kzalloc(&i2c->dev, sizeof(struct pca9450), GFP_KERNEL); |
| 895 | if (!pca9450) |
| 896 | return -ENOMEM; |
| 897 | |
| 898 | switch (type) { |
| 899 | case PCA9450_TYPE_PCA9450A: |
| 900 | regulator_desc = pca9450a_regulators; |
| 901 | pca9450->rcnt = ARRAY_SIZE(pca9450a_regulators); |
| 902 | break; |
| 903 | case PCA9450_TYPE_PCA9450BC: |
| 904 | regulator_desc = pca9450bc_regulators; |
| 905 | pca9450->rcnt = ARRAY_SIZE(pca9450bc_regulators); |
| 906 | break; |
| 907 | case PCA9450_TYPE_PCA9451A: |
| 908 | regulator_desc = pca9451a_regulators; |
| 909 | pca9450->rcnt = ARRAY_SIZE(pca9451a_regulators); |
| 910 | break; |
| 911 | default: |
| 912 | dev_err(&i2c->dev, "Unknown device type"); |
| 913 | return -EINVAL; |
| 914 | } |
| 915 | |
| 916 | pca9450->irq = i2c->irq; |
| 917 | pca9450->type = type; |
| 918 | pca9450->dev = &i2c->dev; |
| 919 | |
| 920 | dev_set_drvdata(&i2c->dev, pca9450); |
| 921 | |
| 922 | pca9450->regmap = devm_regmap_init_i2c(i2c, |
| 923 | &pca9450_regmap_config); |
| 924 | if (IS_ERR(pca9450->regmap)) { |
| 925 | dev_err(&i2c->dev, "regmap initialization failed\n"); |
| 926 | return PTR_ERR(pca9450->regmap); |
| 927 | } |
| 928 | |
| 929 | ret = regmap_read(pca9450->regmap, PCA9450_REG_DEV_ID, &device_id); |
| 930 | if (ret) { |
| 931 | dev_err(&i2c->dev, "Read device id error\n"); |
| 932 | return ret; |
| 933 | } |
| 934 | |
| 935 | /* Check your board and dts for match the right pmic */ |
| 936 | if (((device_id >> 4) != 0x1 && type == PCA9450_TYPE_PCA9450A) || |
| 937 | ((device_id >> 4) != 0x3 && type == PCA9450_TYPE_PCA9450BC) || |
| 938 | ((device_id >> 4) != 0x9 && type == PCA9450_TYPE_PCA9451A)) { |
| 939 | dev_err(&i2c->dev, "Device id(%x) mismatched\n", |
| 940 | device_id >> 4); |
| 941 | return -EINVAL; |
| 942 | } |
| 943 | |
| 944 | for (i = 0; i < pca9450->rcnt; i++) { |
| 945 | const struct regulator_desc *desc; |
| 946 | struct regulator_dev *rdev; |
| 947 | const struct pca9450_regulator_desc *r; |
| 948 | |
| 949 | r = ®ulator_desc[i]; |
| 950 | desc = &r->desc; |
| 951 | |
| 952 | config.regmap = pca9450->regmap; |
| 953 | config.dev = pca9450->dev; |
| 954 | |
| 955 | rdev = devm_regulator_register(pca9450->dev, desc, &config); |
| 956 | if (IS_ERR(rdev)) { |
| 957 | ret = PTR_ERR(rdev); |
| 958 | dev_err(pca9450->dev, |
| 959 | "Failed to register regulator(%s): %d\n", |
| 960 | desc->name, ret); |
| 961 | return ret; |
| 962 | } |
| 963 | } |
| 964 | |
| 965 | if (pca9450->irq) { |
| 966 | ret = devm_request_threaded_irq(pca9450->dev, pca9450->irq, NULL, |
| 967 | pca9450_irq_handler, |
| 968 | (IRQF_TRIGGER_FALLING | IRQF_ONESHOT), |
| 969 | "pca9450-irq", pca9450); |
| 970 | if (ret != 0) { |
| 971 | dev_err(pca9450->dev, "Failed to request IRQ: %d\n", |
| 972 | pca9450->irq); |
| 973 | return ret; |
| 974 | } |
| 975 | /* Unmask all interrupt except PWRON/WDOG/RSVD */ |
| 976 | ret = regmap_update_bits(pca9450->regmap, PCA9450_REG_INT1_MSK, |
| 977 | IRQ_VR_FLT1 | IRQ_VR_FLT2 | IRQ_LOWVSYS | |
| 978 | IRQ_THERM_105 | IRQ_THERM_125, |
| 979 | IRQ_PWRON | IRQ_WDOGB | IRQ_RSVD); |
| 980 | if (ret) { |
| 981 | dev_err(&i2c->dev, "Unmask irq error\n"); |
| 982 | return ret; |
| 983 | } |
| 984 | } |
| 985 | |
| 986 | /* Clear PRESET_EN bit in BUCK123_DVS to use DVS registers */ |
| 987 | ret = regmap_clear_bits(pca9450->regmap, PCA9450_REG_BUCK123_DVS, |
| 988 | BUCK123_PRESET_EN); |
| 989 | if (ret) { |
| 990 | dev_err(&i2c->dev, "Failed to clear PRESET_EN bit: %d\n", ret); |
| 991 | return ret; |
| 992 | } |
| 993 | |
| 994 | if (of_property_read_bool(i2c->dev.of_node, "nxp,wdog_b-warm-reset")) |
| 995 | reset_ctrl = WDOG_B_CFG_WARM; |
| 996 | else |
| 997 | reset_ctrl = WDOG_B_CFG_COLD_LDO12; |
| 998 | |
| 999 | /* Set reset behavior on assertion of WDOG_B signal */ |
| 1000 | ret = regmap_update_bits(pca9450->regmap, PCA9450_REG_RESET_CTRL, |
| 1001 | WDOG_B_CFG_MASK, reset_ctrl); |
| 1002 | if (ret) { |
| 1003 | dev_err(&i2c->dev, "Failed to set WDOG_B reset behavior\n"); |
| 1004 | return ret; |
| 1005 | } |
| 1006 | |
| 1007 | if (of_property_read_bool(i2c->dev.of_node, "nxp,i2c-lt-enable")) { |
| 1008 | /* Enable I2C Level Translator */ |
| 1009 | ret = regmap_update_bits(pca9450->regmap, PCA9450_REG_CONFIG2, |
| 1010 | I2C_LT_MASK, I2C_LT_ON_STANDBY_RUN); |
| 1011 | if (ret) { |
| 1012 | dev_err(&i2c->dev, |
| 1013 | "Failed to enable I2C level translator\n"); |
| 1014 | return ret; |
| 1015 | } |
| 1016 | } |
| 1017 | |
| 1018 | /* |
| 1019 | * The driver uses the LDO5CTRL_H register to control the LDO5 regulator. |
| 1020 | * This is only valid if the SD_VSEL input of the PMIC is high. Let's |
| 1021 | * check if the pin is available as GPIO and set it to high. |
| 1022 | */ |
| 1023 | pca9450->sd_vsel_gpio = gpiod_get_optional(pca9450->dev, "sd-vsel", GPIOD_OUT_HIGH); |
| 1024 | |
| 1025 | if (IS_ERR(pca9450->sd_vsel_gpio)) { |
| 1026 | dev_err(&i2c->dev, "Failed to get SD_VSEL GPIO\n"); |
| 1027 | return PTR_ERR(pca9450->sd_vsel_gpio); |
| 1028 | } |
| 1029 | |
| 1030 | dev_info(&i2c->dev, "%s probed.\n", |
| 1031 | type == PCA9450_TYPE_PCA9450A ? "pca9450a" : |
| 1032 | (type == PCA9450_TYPE_PCA9451A ? "pca9451a" : "pca9450bc")); |
| 1033 | |
| 1034 | return 0; |
| 1035 | } |
| 1036 | |
| 1037 | static const struct of_device_id pca9450_of_match[] = { |
| 1038 | { |
| 1039 | .compatible = "nxp,pca9450a", |
| 1040 | .data = (void *)PCA9450_TYPE_PCA9450A, |
| 1041 | }, |
| 1042 | { |
| 1043 | .compatible = "nxp,pca9450b", |
| 1044 | .data = (void *)PCA9450_TYPE_PCA9450BC, |
| 1045 | }, |
| 1046 | { |
| 1047 | .compatible = "nxp,pca9450c", |
| 1048 | .data = (void *)PCA9450_TYPE_PCA9450BC, |
| 1049 | }, |
| 1050 | { |
| 1051 | .compatible = "nxp,pca9451a", |
| 1052 | .data = (void *)PCA9450_TYPE_PCA9451A, |
| 1053 | }, |
| 1054 | { } |
| 1055 | }; |
| 1056 | MODULE_DEVICE_TABLE(of, pca9450_of_match); |
| 1057 | |
| 1058 | static struct i2c_driver pca9450_i2c_driver = { |
| 1059 | .driver = { |
| 1060 | .name = "nxp-pca9450", |
| 1061 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
| 1062 | .of_match_table = pca9450_of_match, |
| 1063 | }, |
| 1064 | .probe = pca9450_i2c_probe, |
| 1065 | }; |
| 1066 | |
| 1067 | module_i2c_driver(pca9450_i2c_driver); |
| 1068 | |
| 1069 | MODULE_AUTHOR("Robin Gong <yibin.gong@nxp.com>"); |
| 1070 | MODULE_DESCRIPTION("NXP PCA9450 Power Management IC driver"); |
| 1071 | MODULE_LICENSE("GPL"); |