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1// SPDX-License-Identifier: GPL-2.02//3// Regulator driver for tps6594 PMIC4//5// Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/6 7#include <linux/device.h>8#include <linux/err.h>9#include <linux/init.h>10#include <linux/kernel.h>11#include <linux/module.h>12#include <linux/of.h>13#include <linux/platform_device.h>14#include <linux/regmap.h>15#include <linux/regulator/driver.h>16#include <linux/regulator/machine.h>17#include <linux/regulator/of_regulator.h>18 19#include <linux/mfd/tps6594.h>20 21#define BUCK_NB 522#define LDO_NB 423#define MULTI_PHASE_NB 424/* TPS6593 and LP8764 supports OV, UV, SC, ILIM */25#define REGS_INT_NB 426/* TPS65224 supports OV or UV */27#define TPS65224_REGS_INT_NB 128 29enum tps6594_regulator_id {30 /* DCDC's */31 TPS6594_BUCK_1,32 TPS6594_BUCK_2,33 TPS6594_BUCK_3,34 TPS6594_BUCK_4,35 TPS6594_BUCK_5,36 37 /* LDOs */38 TPS6594_LDO_1,39 TPS6594_LDO_2,40 TPS6594_LDO_3,41 TPS6594_LDO_4,42};43 44enum tps6594_multi_regulator_id {45 /* Multi-phase DCDC's */46 TPS6594_BUCK_12,47 TPS6594_BUCK_34,48 TPS6594_BUCK_123,49 TPS6594_BUCK_1234,50};51 52struct tps6594_regulator_irq_type {53 const char *irq_name;54 const char *regulator_name;55 const char *event_name;56 unsigned long event;57};58 59static struct tps6594_regulator_irq_type tps6594_ext_regulator_irq_types[] = {60 { TPS6594_IRQ_NAME_VCCA_OV, "VCCA", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },61 { TPS6594_IRQ_NAME_VCCA_UV, "VCCA", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },62 { TPS6594_IRQ_NAME_VMON1_OV, "VMON1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },63 { TPS6594_IRQ_NAME_VMON1_UV, "VMON1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },64 { TPS6594_IRQ_NAME_VMON1_RV, "VMON1", "residual voltage",65 REGULATOR_EVENT_OVER_VOLTAGE_WARN },66 { TPS6594_IRQ_NAME_VMON2_OV, "VMON2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },67 { TPS6594_IRQ_NAME_VMON2_UV, "VMON2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },68 { TPS6594_IRQ_NAME_VMON2_RV, "VMON2", "residual voltage",69 REGULATOR_EVENT_OVER_VOLTAGE_WARN },70};71 72static struct tps6594_regulator_irq_type tps65224_ext_regulator_irq_types[] = {73 { TPS65224_IRQ_NAME_VCCA_UVOV, "VCCA", "voltage out of range",74 REGULATOR_EVENT_REGULATION_OUT },75 { TPS65224_IRQ_NAME_VMON1_UVOV, "VMON1", "voltage out of range",76 REGULATOR_EVENT_REGULATION_OUT },77 { TPS65224_IRQ_NAME_VMON2_UVOV, "VMON2", "voltage out of range",78 REGULATOR_EVENT_REGULATION_OUT },79};80 81struct tps6594_regulator_irq_data {82 struct device *dev;83 struct tps6594_regulator_irq_type *type;84 struct regulator_dev *rdev;85};86 87struct tps6594_ext_regulator_irq_data {88 struct device *dev;89 struct tps6594_regulator_irq_type *type;90};91 92#define TPS6594_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \93 _em, _cr, _cm, _lr, _nlr, _delay, _fuv, \94 _ct, _ncl, _bpm) \95 { \96 .name = _name, \97 .of_match = _of, \98 .regulators_node = of_match_ptr("regulators"), \99 .supply_name = _of, \100 .id = _id, \101 .ops = &(_ops), \102 .n_voltages = _n, \103 .type = _type, \104 .owner = THIS_MODULE, \105 .vsel_reg = _vr, \106 .vsel_mask = _vm, \107 .csel_reg = _cr, \108 .csel_mask = _cm, \109 .curr_table = _ct, \110 .n_current_limits = _ncl, \111 .enable_reg = _er, \112 .enable_mask = _em, \113 .volt_table = NULL, \114 .linear_ranges = _lr, \115 .n_linear_ranges = _nlr, \116 .ramp_delay = _delay, \117 .fixed_uV = _fuv, \118 .bypass_reg = _vr, \119 .bypass_mask = _bpm, \120 } \121 122static const struct linear_range bucks_ranges[] = {123 REGULATOR_LINEAR_RANGE(300000, 0x0, 0xe, 20000),124 REGULATOR_LINEAR_RANGE(600000, 0xf, 0x72, 5000),125 REGULATOR_LINEAR_RANGE(1100000, 0x73, 0xaa, 10000),126 REGULATOR_LINEAR_RANGE(1660000, 0xab, 0xff, 20000),127};128 129static const struct linear_range ldos_1_2_3_ranges[] = {130 REGULATOR_LINEAR_RANGE(600000, 0x4, 0x3a, 50000),131};132 133static const struct linear_range ldos_4_ranges[] = {134 REGULATOR_LINEAR_RANGE(1200000, 0x20, 0x74, 25000),135};136 137/* Voltage range for TPS65224 Bucks and LDOs */138static const struct linear_range tps65224_bucks_1_ranges[] = {139 REGULATOR_LINEAR_RANGE(500000, 0x0a, 0x0e, 20000),140 REGULATOR_LINEAR_RANGE(600000, 0x0f, 0x72, 5000),141 REGULATOR_LINEAR_RANGE(1100000, 0x73, 0xaa, 10000),142 REGULATOR_LINEAR_RANGE(1660000, 0xab, 0xfd, 20000),143};144 145static const struct linear_range tps65224_bucks_2_3_4_ranges[] = {146 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x1a, 25000),147 REGULATOR_LINEAR_RANGE(1200000, 0x1b, 0x45, 50000),148};149 150static const struct linear_range tps65224_ldos_1_ranges[] = {151 REGULATOR_LINEAR_RANGE(1200000, 0xC, 0x36, 50000),152};153 154static const struct linear_range tps65224_ldos_2_3_ranges[] = {155 REGULATOR_LINEAR_RANGE(600000, 0x0, 0x38, 50000),156};157 158/* Operations permitted on BUCK1/2/3/4/5 */159static const struct regulator_ops tps6594_bucks_ops = {160 .is_enabled = regulator_is_enabled_regmap,161 .enable = regulator_enable_regmap,162 .disable = regulator_disable_regmap,163 .get_voltage_sel = regulator_get_voltage_sel_regmap,164 .set_voltage_sel = regulator_set_voltage_sel_regmap,165 .list_voltage = regulator_list_voltage_linear_range,166 .map_voltage = regulator_map_voltage_linear_range,167 .set_voltage_time_sel = regulator_set_voltage_time_sel,168 169};170 171/* Operations permitted on LDO1/2/3 */172static const struct regulator_ops tps6594_ldos_1_2_3_ops = {173 .is_enabled = regulator_is_enabled_regmap,174 .enable = regulator_enable_regmap,175 .disable = regulator_disable_regmap,176 .get_voltage_sel = regulator_get_voltage_sel_regmap,177 .set_voltage_sel = regulator_set_voltage_sel_regmap,178 .list_voltage = regulator_list_voltage_linear_range,179 .map_voltage = regulator_map_voltage_linear_range,180 .set_bypass = regulator_set_bypass_regmap,181 .get_bypass = regulator_get_bypass_regmap,182};183 184/* Operations permitted on LDO4 */185static const struct regulator_ops tps6594_ldos_4_ops = {186 .is_enabled = regulator_is_enabled_regmap,187 .enable = regulator_enable_regmap,188 .disable = regulator_disable_regmap,189 .get_voltage_sel = regulator_get_voltage_sel_regmap,190 .set_voltage_sel = regulator_set_voltage_sel_regmap,191 .list_voltage = regulator_list_voltage_linear_range,192 .map_voltage = regulator_map_voltage_linear_range,193};194 195static const struct regulator_desc buck_regs[] = {196 TPS6594_REGULATOR("BUCK1", "buck1", TPS6594_BUCK_1,197 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,198 TPS6594_REG_BUCKX_VOUT_1(0),199 TPS6594_MASK_BUCKS_VSET,200 TPS6594_REG_BUCKX_CTRL(0),201 TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,202 4, 0, 0, NULL, 0, 0),203 TPS6594_REGULATOR("BUCK2", "buck2", TPS6594_BUCK_2,204 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,205 TPS6594_REG_BUCKX_VOUT_1(1),206 TPS6594_MASK_BUCKS_VSET,207 TPS6594_REG_BUCKX_CTRL(1),208 TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,209 4, 0, 0, NULL, 0, 0),210 TPS6594_REGULATOR("BUCK3", "buck3", TPS6594_BUCK_3,211 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,212 TPS6594_REG_BUCKX_VOUT_1(2),213 TPS6594_MASK_BUCKS_VSET,214 TPS6594_REG_BUCKX_CTRL(2),215 TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,216 4, 0, 0, NULL, 0, 0),217 TPS6594_REGULATOR("BUCK4", "buck4", TPS6594_BUCK_4,218 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,219 TPS6594_REG_BUCKX_VOUT_1(3),220 TPS6594_MASK_BUCKS_VSET,221 TPS6594_REG_BUCKX_CTRL(3),222 TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,223 4, 0, 0, NULL, 0, 0),224 TPS6594_REGULATOR("BUCK5", "buck5", TPS6594_BUCK_5,225 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,226 TPS6594_REG_BUCKX_VOUT_1(4),227 TPS6594_MASK_BUCKS_VSET,228 TPS6594_REG_BUCKX_CTRL(4),229 TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,230 4, 0, 0, NULL, 0, 0),231};232 233/* Buck configuration for TPS65224 */234static const struct regulator_desc tps65224_buck_regs[] = {235 TPS6594_REGULATOR("BUCK1", "buck1", TPS6594_BUCK_1,236 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCK1_VSET,237 TPS6594_REG_BUCKX_VOUT_1(0),238 TPS65224_MASK_BUCK1_VSET,239 TPS6594_REG_BUCKX_CTRL(0),240 TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_1_ranges,241 4, 0, 0, NULL, 0, 0),242 TPS6594_REGULATOR("BUCK2", "buck2", TPS6594_BUCK_2,243 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,244 TPS6594_REG_BUCKX_VOUT_1(1),245 TPS65224_MASK_BUCKS_VSET,246 TPS6594_REG_BUCKX_CTRL(1),247 TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,248 4, 0, 0, NULL, 0, 0),249 TPS6594_REGULATOR("BUCK3", "buck3", TPS6594_BUCK_3,250 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,251 TPS6594_REG_BUCKX_VOUT_1(2),252 TPS65224_MASK_BUCKS_VSET,253 TPS6594_REG_BUCKX_CTRL(2),254 TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,255 4, 0, 0, NULL, 0, 0),256 TPS6594_REGULATOR("BUCK4", "buck4", TPS6594_BUCK_4,257 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,258 TPS6594_REG_BUCKX_VOUT_1(3),259 TPS65224_MASK_BUCKS_VSET,260 TPS6594_REG_BUCKX_CTRL(3),261 TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,262 4, 0, 0, NULL, 0, 0),263};264 265static struct tps6594_regulator_irq_type tps6594_buck1_irq_types[] = {266 { TPS6594_IRQ_NAME_BUCK1_OV, "BUCK1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },267 { TPS6594_IRQ_NAME_BUCK1_UV, "BUCK1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },268 { TPS6594_IRQ_NAME_BUCK1_SC, "BUCK1", "short circuit", REGULATOR_EVENT_REGULATION_OUT },269 { TPS6594_IRQ_NAME_BUCK1_ILIM, "BUCK1", "reach ilim, overcurrent",270 REGULATOR_EVENT_OVER_CURRENT },271};272 273static struct tps6594_regulator_irq_type tps6594_buck2_irq_types[] = {274 { TPS6594_IRQ_NAME_BUCK2_OV, "BUCK2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },275 { TPS6594_IRQ_NAME_BUCK2_UV, "BUCK2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },276 { TPS6594_IRQ_NAME_BUCK2_SC, "BUCK2", "short circuit", REGULATOR_EVENT_REGULATION_OUT },277 { TPS6594_IRQ_NAME_BUCK2_ILIM, "BUCK2", "reach ilim, overcurrent",278 REGULATOR_EVENT_OVER_CURRENT },279};280 281static struct tps6594_regulator_irq_type tps6594_buck3_irq_types[] = {282 { TPS6594_IRQ_NAME_BUCK3_OV, "BUCK3", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },283 { TPS6594_IRQ_NAME_BUCK3_UV, "BUCK3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },284 { TPS6594_IRQ_NAME_BUCK3_SC, "BUCK3", "short circuit", REGULATOR_EVENT_REGULATION_OUT },285 { TPS6594_IRQ_NAME_BUCK3_ILIM, "BUCK3", "reach ilim, overcurrent",286 REGULATOR_EVENT_OVER_CURRENT },287};288 289static struct tps6594_regulator_irq_type tps6594_buck4_irq_types[] = {290 { TPS6594_IRQ_NAME_BUCK4_OV, "BUCK4", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },291 { TPS6594_IRQ_NAME_BUCK4_UV, "BUCK4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },292 { TPS6594_IRQ_NAME_BUCK4_SC, "BUCK4", "short circuit", REGULATOR_EVENT_REGULATION_OUT },293 { TPS6594_IRQ_NAME_BUCK4_ILIM, "BUCK4", "reach ilim, overcurrent",294 REGULATOR_EVENT_OVER_CURRENT },295};296 297static struct tps6594_regulator_irq_type tps6594_buck5_irq_types[] = {298 { TPS6594_IRQ_NAME_BUCK5_OV, "BUCK5", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },299 { TPS6594_IRQ_NAME_BUCK5_UV, "BUCK5", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },300 { TPS6594_IRQ_NAME_BUCK5_SC, "BUCK5", "short circuit", REGULATOR_EVENT_REGULATION_OUT },301 { TPS6594_IRQ_NAME_BUCK5_ILIM, "BUCK5", "reach ilim, overcurrent",302 REGULATOR_EVENT_OVER_CURRENT },303};304 305static struct tps6594_regulator_irq_type tps6594_ldo1_irq_types[] = {306 { TPS6594_IRQ_NAME_LDO1_OV, "LDO1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },307 { TPS6594_IRQ_NAME_LDO1_UV, "LDO1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },308 { TPS6594_IRQ_NAME_LDO1_SC, "LDO1", "short circuit", REGULATOR_EVENT_REGULATION_OUT },309 { TPS6594_IRQ_NAME_LDO1_ILIM, "LDO1", "reach ilim, overcurrent",310 REGULATOR_EVENT_OVER_CURRENT },311};312 313static struct tps6594_regulator_irq_type tps6594_ldo2_irq_types[] = {314 { TPS6594_IRQ_NAME_LDO2_OV, "LDO2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },315 { TPS6594_IRQ_NAME_LDO2_UV, "LDO2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },316 { TPS6594_IRQ_NAME_LDO2_SC, "LDO2", "short circuit", REGULATOR_EVENT_REGULATION_OUT },317 { TPS6594_IRQ_NAME_LDO2_ILIM, "LDO2", "reach ilim, overcurrent",318 REGULATOR_EVENT_OVER_CURRENT },319};320 321static struct tps6594_regulator_irq_type tps6594_ldo3_irq_types[] = {322 { TPS6594_IRQ_NAME_LDO3_OV, "LDO3", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },323 { TPS6594_IRQ_NAME_LDO3_UV, "LDO3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },324 { TPS6594_IRQ_NAME_LDO3_SC, "LDO3", "short circuit", REGULATOR_EVENT_REGULATION_OUT },325 { TPS6594_IRQ_NAME_LDO3_ILIM, "LDO3", "reach ilim, overcurrent",326 REGULATOR_EVENT_OVER_CURRENT },327};328 329static struct tps6594_regulator_irq_type tps6594_ldo4_irq_types[] = {330 { TPS6594_IRQ_NAME_LDO4_OV, "LDO4", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },331 { TPS6594_IRQ_NAME_LDO4_UV, "LDO4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },332 { TPS6594_IRQ_NAME_LDO4_SC, "LDO4", "short circuit", REGULATOR_EVENT_REGULATION_OUT },333 { TPS6594_IRQ_NAME_LDO4_ILIM, "LDO4", "reach ilim, overcurrent",334 REGULATOR_EVENT_OVER_CURRENT },335};336 337static struct tps6594_regulator_irq_type tps65224_buck1_irq_types[] = {338 { TPS65224_IRQ_NAME_BUCK1_UVOV, "BUCK1", "voltage out of range",339 REGULATOR_EVENT_REGULATION_OUT },340};341 342static struct tps6594_regulator_irq_type tps65224_buck2_irq_types[] = {343 { TPS65224_IRQ_NAME_BUCK2_UVOV, "BUCK2", "voltage out of range",344 REGULATOR_EVENT_REGULATION_OUT },345};346 347static struct tps6594_regulator_irq_type tps65224_buck3_irq_types[] = {348 { TPS65224_IRQ_NAME_BUCK3_UVOV, "BUCK3", "voltage out of range",349 REGULATOR_EVENT_REGULATION_OUT },350};351 352static struct tps6594_regulator_irq_type tps65224_buck4_irq_types[] = {353 { TPS65224_IRQ_NAME_BUCK4_UVOV, "BUCK4", "voltage out of range",354 REGULATOR_EVENT_REGULATION_OUT },355};356 357static struct tps6594_regulator_irq_type tps65224_ldo1_irq_types[] = {358 { TPS65224_IRQ_NAME_LDO1_UVOV, "LDO1", "voltage out of range",359 REGULATOR_EVENT_REGULATION_OUT },360};361 362static struct tps6594_regulator_irq_type tps65224_ldo2_irq_types[] = {363 { TPS65224_IRQ_NAME_LDO2_UVOV, "LDO2", "voltage out of range",364 REGULATOR_EVENT_REGULATION_OUT },365};366 367static struct tps6594_regulator_irq_type tps65224_ldo3_irq_types[] = {368 { TPS65224_IRQ_NAME_LDO3_UVOV, "LDO3", "voltage out of range",369 REGULATOR_EVENT_REGULATION_OUT },370};371 372static struct tps6594_regulator_irq_type *tps6594_bucks_irq_types[] = {373 tps6594_buck1_irq_types,374 tps6594_buck2_irq_types,375 tps6594_buck3_irq_types,376 tps6594_buck4_irq_types,377 tps6594_buck5_irq_types,378};379 380static struct tps6594_regulator_irq_type *tps6594_ldos_irq_types[] = {381 tps6594_ldo1_irq_types,382 tps6594_ldo2_irq_types,383 tps6594_ldo3_irq_types,384 tps6594_ldo4_irq_types,385};386 387static struct tps6594_regulator_irq_type *tps65224_bucks_irq_types[] = {388 tps65224_buck1_irq_types,389 tps65224_buck2_irq_types,390 tps65224_buck3_irq_types,391 tps65224_buck4_irq_types,392};393 394static struct tps6594_regulator_irq_type *tps65224_ldos_irq_types[] = {395 tps65224_ldo1_irq_types,396 tps65224_ldo2_irq_types,397 tps65224_ldo3_irq_types,398};399 400static const struct regulator_desc tps6594_multi_regs[] = {401 TPS6594_REGULATOR("BUCK12", "buck12", TPS6594_BUCK_1,402 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,403 TPS6594_REG_BUCKX_VOUT_1(0),404 TPS6594_MASK_BUCKS_VSET,405 TPS6594_REG_BUCKX_CTRL(0),406 TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,407 4, 4000, 0, NULL, 0, 0),408 TPS6594_REGULATOR("BUCK34", "buck34", TPS6594_BUCK_3,409 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,410 TPS6594_REG_BUCKX_VOUT_1(2),411 TPS6594_MASK_BUCKS_VSET,412 TPS6594_REG_BUCKX_CTRL(2),413 TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,414 4, 0, 0, NULL, 0, 0),415 TPS6594_REGULATOR("BUCK123", "buck123", TPS6594_BUCK_1,416 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,417 TPS6594_REG_BUCKX_VOUT_1(0),418 TPS6594_MASK_BUCKS_VSET,419 TPS6594_REG_BUCKX_CTRL(0),420 TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,421 4, 4000, 0, NULL, 0, 0),422 TPS6594_REGULATOR("BUCK1234", "buck1234", TPS6594_BUCK_1,423 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,424 TPS6594_REG_BUCKX_VOUT_1(0),425 TPS6594_MASK_BUCKS_VSET,426 TPS6594_REG_BUCKX_CTRL(0),427 TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,428 4, 4000, 0, NULL, 0, 0),429};430 431static const struct regulator_desc tps65224_multi_regs[] = {432 TPS6594_REGULATOR("BUCK12", "buck12", TPS6594_BUCK_1,433 REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCK1_VSET,434 TPS6594_REG_BUCKX_VOUT_1(0),435 TPS65224_MASK_BUCK1_VSET,436 TPS6594_REG_BUCKX_CTRL(0),437 TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_1_ranges,438 4, 4000, 0, NULL, 0, 0),439};440 441static const struct regulator_desc tps6594_ldo_regs[] = {442 TPS6594_REGULATOR("LDO1", "ldo1", TPS6594_LDO_1,443 REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,444 TPS6594_REG_LDOX_VOUT(0),445 TPS6594_MASK_LDO123_VSET,446 TPS6594_REG_LDOX_CTRL(0),447 TPS6594_BIT_LDO_EN, 0, 0, ldos_1_2_3_ranges,448 1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),449 TPS6594_REGULATOR("LDO2", "ldo2", TPS6594_LDO_2,450 REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,451 TPS6594_REG_LDOX_VOUT(1),452 TPS6594_MASK_LDO123_VSET,453 TPS6594_REG_LDOX_CTRL(1),454 TPS6594_BIT_LDO_EN, 0, 0, ldos_1_2_3_ranges,455 1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),456 TPS6594_REGULATOR("LDO3", "ldo3", TPS6594_LDO_3,457 REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,458 TPS6594_REG_LDOX_VOUT(2),459 TPS6594_MASK_LDO123_VSET,460 TPS6594_REG_LDOX_CTRL(2),461 TPS6594_BIT_LDO_EN, 0, 0, ldos_1_2_3_ranges,462 1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),463 TPS6594_REGULATOR("LDO4", "ldo4", TPS6594_LDO_4,464 REGULATOR_VOLTAGE, tps6594_ldos_4_ops, TPS6594_MASK_LDO4_VSET >> 1,465 TPS6594_REG_LDOX_VOUT(3),466 TPS6594_MASK_LDO4_VSET,467 TPS6594_REG_LDOX_CTRL(3),468 TPS6594_BIT_LDO_EN, 0, 0, ldos_4_ranges,469 1, 0, 0, NULL, 0, 0),470};471 472static const struct regulator_desc tps65224_ldo_regs[] = {473 TPS6594_REGULATOR("LDO1", "ldo1", TPS6594_LDO_1,474 REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,475 TPS6594_REG_LDOX_VOUT(0),476 TPS6594_MASK_LDO123_VSET,477 TPS6594_REG_LDOX_CTRL(0),478 TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_1_ranges,479 1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),480 TPS6594_REGULATOR("LDO2", "ldo2", TPS6594_LDO_2,481 REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,482 TPS6594_REG_LDOX_VOUT(1),483 TPS6594_MASK_LDO123_VSET,484 TPS6594_REG_LDOX_CTRL(1),485 TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_2_3_ranges,486 1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),487 TPS6594_REGULATOR("LDO3", "ldo3", TPS6594_LDO_3,488 REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,489 TPS6594_REG_LDOX_VOUT(2),490 TPS6594_MASK_LDO123_VSET,491 TPS6594_REG_LDOX_CTRL(2),492 TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_2_3_ranges,493 1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),494};495 496static irqreturn_t tps6594_regulator_irq_handler(int irq, void *data)497{498 struct tps6594_regulator_irq_data *irq_data = data;499 500 if (irq_data->type->event_name[0] == '\0') {501 /* This is the timeout interrupt no specific regulator */502 dev_err(irq_data->dev,503 "System was put in shutdown due to timeout during an active or standby transition.\n");504 return IRQ_HANDLED;505 }506 507 dev_err(irq_data->dev, "Error IRQ trap %s for %s\n",508 irq_data->type->event_name, irq_data->type->regulator_name);509 510 regulator_notifier_call_chain(irq_data->rdev,511 irq_data->type->event, NULL);512 513 return IRQ_HANDLED;514}515 516static int tps6594_request_reg_irqs(struct platform_device *pdev,517 struct regulator_dev *rdev,518 struct tps6594_regulator_irq_data *irq_data,519 struct tps6594_regulator_irq_type *regs_irq_types,520 size_t interrupt_cnt,521 int *irq_idx)522{523 struct tps6594_regulator_irq_type *irq_type;524 struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);525 size_t j;526 int irq;527 int error;528 529 for (j = 0; j < interrupt_cnt; j++) {530 irq_type = ®s_irq_types[j];531 irq = platform_get_irq_byname(pdev, irq_type->irq_name);532 if (irq < 0)533 return -EINVAL;534 535 irq_data[*irq_idx].dev = tps->dev;536 irq_data[*irq_idx].type = irq_type;537 irq_data[*irq_idx].rdev = rdev;538 539 error = devm_request_threaded_irq(tps->dev, irq, NULL,540 tps6594_regulator_irq_handler, IRQF_ONESHOT,541 irq_type->irq_name, &irq_data[*irq_idx]);542 if (error) {543 dev_err(tps->dev, "tps6594 failed to request %s IRQ %d: %d\n",544 irq_type->irq_name, irq, error);545 return error;546 }547 (*irq_idx)++;548 }549 return 0;550}551 552static int tps6594_regulator_probe(struct platform_device *pdev)553{554 struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);555 struct regulator_dev *rdev;556 struct device_node *np = NULL;557 struct device_node *np_pmic_parent = NULL;558 struct regulator_config config = {};559 struct tps6594_regulator_irq_data *irq_data;560 struct tps6594_ext_regulator_irq_data *irq_ext_reg_data;561 struct tps6594_regulator_irq_type *irq_type;562 struct tps6594_regulator_irq_type *irq_types;563 bool buck_configured[BUCK_NB] = { false };564 bool buck_multi[MULTI_PHASE_NB] = { false };565 566 static const char *npname;567 int error, i, irq, multi;568 int irq_idx = 0;569 int buck_idx = 0;570 int nr_ldo;571 int nr_buck;572 int nr_types;573 unsigned int irq_count;574 unsigned int multi_phase_cnt;575 size_t reg_irq_nb;576 struct tps6594_regulator_irq_type **bucks_irq_types;577 const struct regulator_desc *multi_regs;578 struct tps6594_regulator_irq_type **ldos_irq_types;579 const struct regulator_desc *ldo_regs;580 size_t interrupt_count;581 582 if (tps->chip_id == TPS65224) {583 bucks_irq_types = tps65224_bucks_irq_types;584 interrupt_count = ARRAY_SIZE(tps65224_buck1_irq_types);585 multi_regs = tps65224_multi_regs;586 ldos_irq_types = tps65224_ldos_irq_types;587 ldo_regs = tps65224_ldo_regs;588 multi_phase_cnt = ARRAY_SIZE(tps65224_multi_regs);589 } else {590 bucks_irq_types = tps6594_bucks_irq_types;591 interrupt_count = ARRAY_SIZE(tps6594_buck1_irq_types);592 multi_regs = tps6594_multi_regs;593 ldos_irq_types = tps6594_ldos_irq_types;594 ldo_regs = tps6594_ldo_regs;595 multi_phase_cnt = ARRAY_SIZE(tps6594_multi_regs);596 }597 598 enum {599 MULTI_BUCK12,600 MULTI_BUCK12_34,601 MULTI_BUCK123,602 MULTI_BUCK1234,603 };604 605 config.dev = tps->dev;606 config.driver_data = tps;607 config.regmap = tps->regmap;608 609 /*610 * Switch case defines different possible multi phase config611 * This is based on dts buck node name.612 * Buck node name must be chosen accordingly.613 * Default case is no Multiphase buck.614 * In case of Multiphase configuration, value should be defined for615 * buck_configured to avoid creating bucks for every buck in multiphase616 */617 for (multi = 0; multi < multi_phase_cnt; multi++) {618 np = of_find_node_by_name(tps->dev->of_node, multi_regs[multi].supply_name);619 npname = of_node_full_name(np);620 np_pmic_parent = of_get_parent(of_get_parent(np));621 if (of_node_cmp(of_node_full_name(np_pmic_parent), tps->dev->of_node->full_name))622 continue;623 if (strcmp(npname, multi_regs[multi].supply_name) == 0) {624 switch (multi) {625 case MULTI_BUCK12:626 buck_multi[0] = true;627 buck_configured[0] = true;628 buck_configured[1] = true;629 break;630 /* multiphase buck34 is supported only with buck12 */631 case MULTI_BUCK12_34:632 buck_multi[0] = true;633 buck_multi[1] = true;634 buck_configured[0] = true;635 buck_configured[1] = true;636 buck_configured[2] = true;637 buck_configured[3] = true;638 break;639 case MULTI_BUCK123:640 buck_multi[2] = true;641 buck_configured[0] = true;642 buck_configured[1] = true;643 buck_configured[2] = true;644 break;645 case MULTI_BUCK1234:646 buck_multi[3] = true;647 buck_configured[0] = true;648 buck_configured[1] = true;649 buck_configured[2] = true;650 buck_configured[3] = true;651 break;652 }653 }654 }655 656 if (tps->chip_id == TPS65224) {657 nr_buck = ARRAY_SIZE(tps65224_buck_regs);658 nr_ldo = ARRAY_SIZE(tps65224_ldo_regs);659 nr_types = TPS65224_REGS_INT_NB;660 } else {661 nr_buck = ARRAY_SIZE(buck_regs);662 nr_ldo = (tps->chip_id == LP8764) ? 0 : ARRAY_SIZE(tps6594_ldo_regs);663 nr_types = REGS_INT_NB;664 }665 666 reg_irq_nb = nr_types * (nr_buck + nr_ldo);667 668 irq_data = devm_kmalloc_array(tps->dev, reg_irq_nb,669 sizeof(struct tps6594_regulator_irq_data), GFP_KERNEL);670 if (!irq_data)671 return -ENOMEM;672 673 for (i = 0; i < multi_phase_cnt; i++) {674 if (!buck_multi[i])675 continue;676 677 rdev = devm_regulator_register(&pdev->dev, &multi_regs[i], &config);678 if (IS_ERR(rdev))679 return dev_err_probe(tps->dev, PTR_ERR(rdev),680 "failed to register %s regulator\n",681 pdev->name);682 683 /* config multiphase buck12+buck34 */684 if (i == MULTI_BUCK12_34)685 buck_idx = 2;686 687 error = tps6594_request_reg_irqs(pdev, rdev, irq_data,688 bucks_irq_types[buck_idx],689 interrupt_count, &irq_idx);690 if (error)691 return error;692 693 error = tps6594_request_reg_irqs(pdev, rdev, irq_data,694 bucks_irq_types[buck_idx + 1],695 interrupt_count, &irq_idx);696 if (error)697 return error;698 699 if (i == MULTI_BUCK123 || i == MULTI_BUCK1234) {700 error = tps6594_request_reg_irqs(pdev, rdev, irq_data,701 tps6594_bucks_irq_types[buck_idx + 2],702 interrupt_count,703 &irq_idx);704 if (error)705 return error;706 }707 if (i == MULTI_BUCK1234) {708 error = tps6594_request_reg_irqs(pdev, rdev, irq_data,709 tps6594_bucks_irq_types[buck_idx + 3],710 interrupt_count,711 &irq_idx);712 if (error)713 return error;714 }715 }716 717 for (i = 0; i < nr_buck; i++) {718 if (buck_configured[i])719 continue;720 721 const struct regulator_desc *buck_cfg = (tps->chip_id == TPS65224) ?722 tps65224_buck_regs : buck_regs;723 724 rdev = devm_regulator_register(&pdev->dev, &buck_cfg[i], &config);725 if (IS_ERR(rdev))726 return dev_err_probe(tps->dev, PTR_ERR(rdev),727 "failed to register %s regulator\n", pdev->name);728 729 error = tps6594_request_reg_irqs(pdev, rdev, irq_data,730 bucks_irq_types[i], interrupt_count, &irq_idx);731 if (error)732 return error;733 }734 735 /* LP8764 doesn't have LDO */736 if (tps->chip_id != LP8764) {737 for (i = 0; i < nr_ldo; i++) {738 rdev = devm_regulator_register(&pdev->dev, &ldo_regs[i], &config);739 if (IS_ERR(rdev))740 return dev_err_probe(tps->dev, PTR_ERR(rdev),741 "failed to register %s regulator\n",742 pdev->name);743 744 error = tps6594_request_reg_irqs(pdev, rdev, irq_data,745 ldos_irq_types[i], interrupt_count,746 &irq_idx);747 if (error)748 return error;749 }750 }751 752 if (tps->chip_id == TPS65224) {753 irq_types = tps65224_ext_regulator_irq_types;754 irq_count = ARRAY_SIZE(tps65224_ext_regulator_irq_types);755 } else {756 irq_types = tps6594_ext_regulator_irq_types;757 if (tps->chip_id == LP8764)758 irq_count = ARRAY_SIZE(tps6594_ext_regulator_irq_types);759 else760 /* TPS6593 supports only VCCA OV and UV */761 irq_count = 2;762 }763 764 irq_ext_reg_data = devm_kmalloc_array(tps->dev,765 irq_count,766 sizeof(struct tps6594_ext_regulator_irq_data),767 GFP_KERNEL);768 if (!irq_ext_reg_data)769 return -ENOMEM;770 771 for (i = 0; i < irq_count; ++i) {772 irq_type = &irq_types[i];773 irq = platform_get_irq_byname(pdev, irq_type->irq_name);774 if (irq < 0)775 return -EINVAL;776 777 irq_ext_reg_data[i].dev = tps->dev;778 irq_ext_reg_data[i].type = irq_type;779 780 error = devm_request_threaded_irq(tps->dev, irq, NULL,781 tps6594_regulator_irq_handler,782 IRQF_ONESHOT,783 irq_type->irq_name,784 &irq_ext_reg_data[i]);785 if (error)786 return dev_err_probe(tps->dev, error,787 "failed to request %s IRQ %d\n",788 irq_type->irq_name, irq);789 }790 return 0;791}792 793static struct platform_driver tps6594_regulator_driver = {794 .driver = {795 .name = "tps6594-regulator",796 },797 .probe = tps6594_regulator_probe,798};799 800module_platform_driver(tps6594_regulator_driver);801 802MODULE_ALIAS("platform:tps6594-regulator");803MODULE_AUTHOR("Jerome Neanne <jneanne@baylibre.com>");804MODULE_AUTHOR("Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>");805MODULE_DESCRIPTION("TPS6594 voltage regulator driver");806MODULE_LICENSE("GPL");807