Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 1 | /* |
| 2 | * TI LP8788 MFD - ldo regulator driver |
| 3 | * |
| 4 | * Copyright 2012 Texas Instruments |
| 5 | * |
| 6 | * Author: Milo(Woogyom) Kim <milo.kim@ti.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/slab.h> |
| 16 | #include <linux/err.h> |
| 17 | #include <linux/platform_device.h> |
| 18 | #include <linux/regulator/driver.h> |
Linus Walleij | 2468f0d | 2018-05-14 10:06:28 +0200 | [diff] [blame] | 19 | #include <linux/gpio/consumer.h> |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 20 | #include <linux/mfd/lp8788.h> |
| 21 | |
| 22 | /* register address */ |
| 23 | #define LP8788_EN_LDO_A 0x0D /* DLDO 1 ~ 8 */ |
| 24 | #define LP8788_EN_LDO_B 0x0E /* DLDO 9 ~ 12, ALDO 1 ~ 4 */ |
| 25 | #define LP8788_EN_LDO_C 0x0F /* ALDO 5 ~ 10 */ |
| 26 | #define LP8788_EN_SEL 0x10 |
| 27 | #define LP8788_DLDO1_VOUT 0x2E |
| 28 | #define LP8788_DLDO2_VOUT 0x2F |
| 29 | #define LP8788_DLDO3_VOUT 0x30 |
| 30 | #define LP8788_DLDO4_VOUT 0x31 |
| 31 | #define LP8788_DLDO5_VOUT 0x32 |
| 32 | #define LP8788_DLDO6_VOUT 0x33 |
| 33 | #define LP8788_DLDO7_VOUT 0x34 |
| 34 | #define LP8788_DLDO8_VOUT 0x35 |
| 35 | #define LP8788_DLDO9_VOUT 0x36 |
| 36 | #define LP8788_DLDO10_VOUT 0x37 |
| 37 | #define LP8788_DLDO11_VOUT 0x38 |
| 38 | #define LP8788_DLDO12_VOUT 0x39 |
| 39 | #define LP8788_ALDO1_VOUT 0x3A |
| 40 | #define LP8788_ALDO2_VOUT 0x3B |
| 41 | #define LP8788_ALDO3_VOUT 0x3C |
| 42 | #define LP8788_ALDO4_VOUT 0x3D |
| 43 | #define LP8788_ALDO5_VOUT 0x3E |
| 44 | #define LP8788_ALDO6_VOUT 0x3F |
| 45 | #define LP8788_ALDO7_VOUT 0x40 |
| 46 | #define LP8788_ALDO8_VOUT 0x41 |
| 47 | #define LP8788_ALDO9_VOUT 0x42 |
| 48 | #define LP8788_ALDO10_VOUT 0x43 |
| 49 | #define LP8788_DLDO1_TIMESTEP 0x44 |
| 50 | |
| 51 | /* mask/shift bits */ |
| 52 | #define LP8788_EN_DLDO1_M BIT(0) /* Addr 0Dh ~ 0Fh */ |
| 53 | #define LP8788_EN_DLDO2_M BIT(1) |
| 54 | #define LP8788_EN_DLDO3_M BIT(2) |
| 55 | #define LP8788_EN_DLDO4_M BIT(3) |
| 56 | #define LP8788_EN_DLDO5_M BIT(4) |
| 57 | #define LP8788_EN_DLDO6_M BIT(5) |
| 58 | #define LP8788_EN_DLDO7_M BIT(6) |
| 59 | #define LP8788_EN_DLDO8_M BIT(7) |
| 60 | #define LP8788_EN_DLDO9_M BIT(0) |
| 61 | #define LP8788_EN_DLDO10_M BIT(1) |
| 62 | #define LP8788_EN_DLDO11_M BIT(2) |
| 63 | #define LP8788_EN_DLDO12_M BIT(3) |
| 64 | #define LP8788_EN_ALDO1_M BIT(4) |
| 65 | #define LP8788_EN_ALDO2_M BIT(5) |
| 66 | #define LP8788_EN_ALDO3_M BIT(6) |
| 67 | #define LP8788_EN_ALDO4_M BIT(7) |
| 68 | #define LP8788_EN_ALDO5_M BIT(0) |
| 69 | #define LP8788_EN_ALDO6_M BIT(1) |
| 70 | #define LP8788_EN_ALDO7_M BIT(2) |
| 71 | #define LP8788_EN_ALDO8_M BIT(3) |
| 72 | #define LP8788_EN_ALDO9_M BIT(4) |
| 73 | #define LP8788_EN_ALDO10_M BIT(5) |
| 74 | #define LP8788_EN_SEL_DLDO911_M BIT(0) /* Addr 10h */ |
| 75 | #define LP8788_EN_SEL_DLDO7_M BIT(1) |
| 76 | #define LP8788_EN_SEL_ALDO7_M BIT(2) |
| 77 | #define LP8788_EN_SEL_ALDO5_M BIT(3) |
| 78 | #define LP8788_EN_SEL_ALDO234_M BIT(4) |
| 79 | #define LP8788_EN_SEL_ALDO1_M BIT(5) |
| 80 | #define LP8788_VOUT_5BIT_M 0x1F /* Addr 2Eh ~ 43h */ |
| 81 | #define LP8788_VOUT_4BIT_M 0x0F |
| 82 | #define LP8788_VOUT_3BIT_M 0x07 |
| 83 | #define LP8788_VOUT_1BIT_M 0x01 |
| 84 | #define LP8788_STARTUP_TIME_M 0xF8 /* Addr 44h ~ 59h */ |
| 85 | #define LP8788_STARTUP_TIME_S 3 |
| 86 | |
| 87 | #define ENABLE_TIME_USEC 32 |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 88 | |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 89 | enum lp8788_ldo_id { |
| 90 | DLDO1, |
| 91 | DLDO2, |
| 92 | DLDO3, |
| 93 | DLDO4, |
| 94 | DLDO5, |
| 95 | DLDO6, |
| 96 | DLDO7, |
| 97 | DLDO8, |
| 98 | DLDO9, |
| 99 | DLDO10, |
| 100 | DLDO11, |
| 101 | DLDO12, |
| 102 | ALDO1, |
| 103 | ALDO2, |
| 104 | ALDO3, |
| 105 | ALDO4, |
| 106 | ALDO5, |
| 107 | ALDO6, |
| 108 | ALDO7, |
| 109 | ALDO8, |
| 110 | ALDO9, |
| 111 | ALDO10, |
| 112 | }; |
| 113 | |
| 114 | struct lp8788_ldo { |
| 115 | struct lp8788 *lp; |
| 116 | struct regulator_desc *desc; |
| 117 | struct regulator_dev *regulator; |
Linus Walleij | 2468f0d | 2018-05-14 10:06:28 +0200 | [diff] [blame] | 118 | struct gpio_desc *ena_gpiod; |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 119 | }; |
| 120 | |
| 121 | /* DLDO 1, 2, 3, 9 voltage table */ |
Mark Brown | 4e92920 | 2012-10-03 12:42:06 +0100 | [diff] [blame] | 122 | static const int lp8788_dldo1239_vtbl[] = { |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 123 | 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, |
| 124 | 2600000, 2700000, 2800000, 2900000, 3000000, 2850000, 2850000, 2850000, |
| 125 | 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, |
| 126 | 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, |
| 127 | }; |
| 128 | |
| 129 | /* DLDO 4 voltage table */ |
| 130 | static const int lp8788_dldo4_vtbl[] = { 1800000, 3000000 }; |
| 131 | |
| 132 | /* DLDO 5, 7, 8 and ALDO 6 voltage table */ |
| 133 | static const int lp8788_dldo578_aldo6_vtbl[] = { |
| 134 | 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, |
| 135 | 2600000, 2700000, 2800000, 2900000, 3000000, 3000000, 3000000, 3000000, |
| 136 | }; |
| 137 | |
| 138 | /* DLDO 6 voltage table */ |
| 139 | static const int lp8788_dldo6_vtbl[] = { |
| 140 | 3000000, 3100000, 3200000, 3300000, 3400000, 3500000, 3600000, 3600000, |
| 141 | }; |
| 142 | |
| 143 | /* DLDO 10, 11 voltage table */ |
| 144 | static const int lp8788_dldo1011_vtbl[] = { |
| 145 | 1100000, 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, |
| 146 | 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, |
| 147 | }; |
| 148 | |
| 149 | /* ALDO 1 voltage table */ |
| 150 | static const int lp8788_aldo1_vtbl[] = { 1800000, 2850000 }; |
| 151 | |
| 152 | /* ALDO 7 voltage table */ |
| 153 | static const int lp8788_aldo7_vtbl[] = { |
| 154 | 1200000, 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1800000, |
| 155 | }; |
| 156 | |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 157 | static int lp8788_ldo_enable_time(struct regulator_dev *rdev) |
| 158 | { |
| 159 | struct lp8788_ldo *ldo = rdev_get_drvdata(rdev); |
| 160 | enum lp8788_ldo_id id = rdev_get_id(rdev); |
| 161 | u8 val, addr = LP8788_DLDO1_TIMESTEP + id; |
| 162 | |
| 163 | if (lp8788_read_byte(ldo->lp, addr, &val)) |
| 164 | return -EINVAL; |
| 165 | |
| 166 | val = (val & LP8788_STARTUP_TIME_M) >> LP8788_STARTUP_TIME_S; |
| 167 | |
| 168 | return ENABLE_TIME_USEC * val; |
| 169 | } |
| 170 | |
Julia Lawall | 95dfead | 2015-12-19 16:43:22 +0100 | [diff] [blame] | 171 | static const struct regulator_ops lp8788_ldo_voltage_table_ops = { |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 172 | .list_voltage = regulator_list_voltage_table, |
| 173 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
| 174 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
Kim, Milo | 407945f | 2013-02-18 06:51:02 +0000 | [diff] [blame] | 175 | .enable = regulator_enable_regmap, |
| 176 | .disable = regulator_disable_regmap, |
| 177 | .is_enabled = regulator_is_enabled_regmap, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 178 | .enable_time = lp8788_ldo_enable_time, |
| 179 | }; |
| 180 | |
Julia Lawall | 95dfead | 2015-12-19 16:43:22 +0100 | [diff] [blame] | 181 | static const struct regulator_ops lp8788_ldo_voltage_fixed_ops = { |
Axel Lin | b5366e5 | 2013-04-01 23:28:48 +0800 | [diff] [blame] | 182 | .list_voltage = regulator_list_voltage_linear, |
Kim, Milo | 407945f | 2013-02-18 06:51:02 +0000 | [diff] [blame] | 183 | .enable = regulator_enable_regmap, |
| 184 | .disable = regulator_disable_regmap, |
| 185 | .is_enabled = regulator_is_enabled_regmap, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 186 | .enable_time = lp8788_ldo_enable_time, |
| 187 | }; |
| 188 | |
| 189 | static struct regulator_desc lp8788_dldo_desc[] = { |
| 190 | { |
| 191 | .name = "dldo1", |
| 192 | .id = DLDO1, |
| 193 | .ops = &lp8788_ldo_voltage_table_ops, |
| 194 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), |
| 195 | .volt_table = lp8788_dldo1239_vtbl, |
| 196 | .type = REGULATOR_VOLTAGE, |
| 197 | .owner = THIS_MODULE, |
| 198 | .vsel_reg = LP8788_DLDO1_VOUT, |
| 199 | .vsel_mask = LP8788_VOUT_5BIT_M, |
| 200 | .enable_reg = LP8788_EN_LDO_A, |
| 201 | .enable_mask = LP8788_EN_DLDO1_M, |
| 202 | }, |
| 203 | { |
| 204 | .name = "dldo2", |
| 205 | .id = DLDO2, |
| 206 | .ops = &lp8788_ldo_voltage_table_ops, |
| 207 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), |
| 208 | .volt_table = lp8788_dldo1239_vtbl, |
| 209 | .type = REGULATOR_VOLTAGE, |
| 210 | .owner = THIS_MODULE, |
| 211 | .vsel_reg = LP8788_DLDO2_VOUT, |
| 212 | .vsel_mask = LP8788_VOUT_5BIT_M, |
| 213 | .enable_reg = LP8788_EN_LDO_A, |
| 214 | .enable_mask = LP8788_EN_DLDO2_M, |
| 215 | }, |
| 216 | { |
| 217 | .name = "dldo3", |
| 218 | .id = DLDO3, |
| 219 | .ops = &lp8788_ldo_voltage_table_ops, |
| 220 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), |
| 221 | .volt_table = lp8788_dldo1239_vtbl, |
| 222 | .type = REGULATOR_VOLTAGE, |
| 223 | .owner = THIS_MODULE, |
| 224 | .vsel_reg = LP8788_DLDO3_VOUT, |
| 225 | .vsel_mask = LP8788_VOUT_5BIT_M, |
| 226 | .enable_reg = LP8788_EN_LDO_A, |
| 227 | .enable_mask = LP8788_EN_DLDO3_M, |
| 228 | }, |
| 229 | { |
| 230 | .name = "dldo4", |
| 231 | .id = DLDO4, |
| 232 | .ops = &lp8788_ldo_voltage_table_ops, |
| 233 | .n_voltages = ARRAY_SIZE(lp8788_dldo4_vtbl), |
| 234 | .volt_table = lp8788_dldo4_vtbl, |
| 235 | .type = REGULATOR_VOLTAGE, |
| 236 | .owner = THIS_MODULE, |
| 237 | .vsel_reg = LP8788_DLDO4_VOUT, |
| 238 | .vsel_mask = LP8788_VOUT_1BIT_M, |
| 239 | .enable_reg = LP8788_EN_LDO_A, |
| 240 | .enable_mask = LP8788_EN_DLDO4_M, |
| 241 | }, |
| 242 | { |
| 243 | .name = "dldo5", |
| 244 | .id = DLDO5, |
| 245 | .ops = &lp8788_ldo_voltage_table_ops, |
| 246 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), |
| 247 | .volt_table = lp8788_dldo578_aldo6_vtbl, |
| 248 | .type = REGULATOR_VOLTAGE, |
| 249 | .owner = THIS_MODULE, |
| 250 | .vsel_reg = LP8788_DLDO5_VOUT, |
| 251 | .vsel_mask = LP8788_VOUT_4BIT_M, |
| 252 | .enable_reg = LP8788_EN_LDO_A, |
| 253 | .enable_mask = LP8788_EN_DLDO5_M, |
| 254 | }, |
| 255 | { |
| 256 | .name = "dldo6", |
| 257 | .id = DLDO6, |
| 258 | .ops = &lp8788_ldo_voltage_table_ops, |
| 259 | .n_voltages = ARRAY_SIZE(lp8788_dldo6_vtbl), |
| 260 | .volt_table = lp8788_dldo6_vtbl, |
| 261 | .type = REGULATOR_VOLTAGE, |
| 262 | .owner = THIS_MODULE, |
| 263 | .vsel_reg = LP8788_DLDO6_VOUT, |
| 264 | .vsel_mask = LP8788_VOUT_3BIT_M, |
| 265 | .enable_reg = LP8788_EN_LDO_A, |
| 266 | .enable_mask = LP8788_EN_DLDO6_M, |
| 267 | }, |
| 268 | { |
| 269 | .name = "dldo7", |
| 270 | .id = DLDO7, |
| 271 | .ops = &lp8788_ldo_voltage_table_ops, |
| 272 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), |
| 273 | .volt_table = lp8788_dldo578_aldo6_vtbl, |
| 274 | .type = REGULATOR_VOLTAGE, |
| 275 | .owner = THIS_MODULE, |
| 276 | .vsel_reg = LP8788_DLDO7_VOUT, |
| 277 | .vsel_mask = LP8788_VOUT_4BIT_M, |
| 278 | .enable_reg = LP8788_EN_LDO_A, |
| 279 | .enable_mask = LP8788_EN_DLDO7_M, |
| 280 | }, |
| 281 | { |
| 282 | .name = "dldo8", |
| 283 | .id = DLDO8, |
| 284 | .ops = &lp8788_ldo_voltage_table_ops, |
| 285 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), |
| 286 | .volt_table = lp8788_dldo578_aldo6_vtbl, |
| 287 | .type = REGULATOR_VOLTAGE, |
| 288 | .owner = THIS_MODULE, |
| 289 | .vsel_reg = LP8788_DLDO8_VOUT, |
| 290 | .vsel_mask = LP8788_VOUT_4BIT_M, |
| 291 | .enable_reg = LP8788_EN_LDO_A, |
| 292 | .enable_mask = LP8788_EN_DLDO8_M, |
| 293 | }, |
| 294 | { |
| 295 | .name = "dldo9", |
| 296 | .id = DLDO9, |
| 297 | .ops = &lp8788_ldo_voltage_table_ops, |
| 298 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), |
| 299 | .volt_table = lp8788_dldo1239_vtbl, |
| 300 | .type = REGULATOR_VOLTAGE, |
| 301 | .owner = THIS_MODULE, |
| 302 | .vsel_reg = LP8788_DLDO9_VOUT, |
| 303 | .vsel_mask = LP8788_VOUT_5BIT_M, |
| 304 | .enable_reg = LP8788_EN_LDO_B, |
| 305 | .enable_mask = LP8788_EN_DLDO9_M, |
| 306 | }, |
| 307 | { |
| 308 | .name = "dldo10", |
| 309 | .id = DLDO10, |
| 310 | .ops = &lp8788_ldo_voltage_table_ops, |
| 311 | .n_voltages = ARRAY_SIZE(lp8788_dldo1011_vtbl), |
| 312 | .volt_table = lp8788_dldo1011_vtbl, |
| 313 | .type = REGULATOR_VOLTAGE, |
| 314 | .owner = THIS_MODULE, |
| 315 | .vsel_reg = LP8788_DLDO10_VOUT, |
| 316 | .vsel_mask = LP8788_VOUT_4BIT_M, |
| 317 | .enable_reg = LP8788_EN_LDO_B, |
| 318 | .enable_mask = LP8788_EN_DLDO10_M, |
| 319 | }, |
| 320 | { |
| 321 | .name = "dldo11", |
| 322 | .id = DLDO11, |
| 323 | .ops = &lp8788_ldo_voltage_table_ops, |
| 324 | .n_voltages = ARRAY_SIZE(lp8788_dldo1011_vtbl), |
| 325 | .volt_table = lp8788_dldo1011_vtbl, |
| 326 | .type = REGULATOR_VOLTAGE, |
| 327 | .owner = THIS_MODULE, |
| 328 | .vsel_reg = LP8788_DLDO11_VOUT, |
| 329 | .vsel_mask = LP8788_VOUT_4BIT_M, |
| 330 | .enable_reg = LP8788_EN_LDO_B, |
| 331 | .enable_mask = LP8788_EN_DLDO11_M, |
| 332 | }, |
| 333 | { |
| 334 | .name = "dldo12", |
| 335 | .id = DLDO12, |
| 336 | .ops = &lp8788_ldo_voltage_fixed_ops, |
Axel Lin | 74c8cfd | 2012-07-20 20:31:19 +0800 | [diff] [blame] | 337 | .n_voltages = 1, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 338 | .type = REGULATOR_VOLTAGE, |
| 339 | .owner = THIS_MODULE, |
| 340 | .enable_reg = LP8788_EN_LDO_B, |
| 341 | .enable_mask = LP8788_EN_DLDO12_M, |
Axel Lin | b5366e5 | 2013-04-01 23:28:48 +0800 | [diff] [blame] | 342 | .min_uV = 2500000, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 343 | }, |
| 344 | }; |
| 345 | |
| 346 | static struct regulator_desc lp8788_aldo_desc[] = { |
| 347 | { |
| 348 | .name = "aldo1", |
| 349 | .id = ALDO1, |
| 350 | .ops = &lp8788_ldo_voltage_table_ops, |
| 351 | .n_voltages = ARRAY_SIZE(lp8788_aldo1_vtbl), |
| 352 | .volt_table = lp8788_aldo1_vtbl, |
| 353 | .type = REGULATOR_VOLTAGE, |
| 354 | .owner = THIS_MODULE, |
| 355 | .vsel_reg = LP8788_ALDO1_VOUT, |
| 356 | .vsel_mask = LP8788_VOUT_1BIT_M, |
| 357 | .enable_reg = LP8788_EN_LDO_B, |
| 358 | .enable_mask = LP8788_EN_ALDO1_M, |
| 359 | }, |
| 360 | { |
| 361 | .name = "aldo2", |
| 362 | .id = ALDO2, |
| 363 | .ops = &lp8788_ldo_voltage_fixed_ops, |
Axel Lin | 74c8cfd | 2012-07-20 20:31:19 +0800 | [diff] [blame] | 364 | .n_voltages = 1, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 365 | .type = REGULATOR_VOLTAGE, |
| 366 | .owner = THIS_MODULE, |
| 367 | .enable_reg = LP8788_EN_LDO_B, |
| 368 | .enable_mask = LP8788_EN_ALDO2_M, |
Axel Lin | b5366e5 | 2013-04-01 23:28:48 +0800 | [diff] [blame] | 369 | .min_uV = 2850000, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 370 | }, |
| 371 | { |
| 372 | .name = "aldo3", |
| 373 | .id = ALDO3, |
| 374 | .ops = &lp8788_ldo_voltage_fixed_ops, |
Axel Lin | 74c8cfd | 2012-07-20 20:31:19 +0800 | [diff] [blame] | 375 | .n_voltages = 1, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 376 | .type = REGULATOR_VOLTAGE, |
| 377 | .owner = THIS_MODULE, |
| 378 | .enable_reg = LP8788_EN_LDO_B, |
| 379 | .enable_mask = LP8788_EN_ALDO3_M, |
Axel Lin | b5366e5 | 2013-04-01 23:28:48 +0800 | [diff] [blame] | 380 | .min_uV = 2850000, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 381 | }, |
| 382 | { |
| 383 | .name = "aldo4", |
| 384 | .id = ALDO4, |
| 385 | .ops = &lp8788_ldo_voltage_fixed_ops, |
Axel Lin | 74c8cfd | 2012-07-20 20:31:19 +0800 | [diff] [blame] | 386 | .n_voltages = 1, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 387 | .type = REGULATOR_VOLTAGE, |
| 388 | .owner = THIS_MODULE, |
| 389 | .enable_reg = LP8788_EN_LDO_B, |
| 390 | .enable_mask = LP8788_EN_ALDO4_M, |
Axel Lin | b5366e5 | 2013-04-01 23:28:48 +0800 | [diff] [blame] | 391 | .min_uV = 2850000, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 392 | }, |
| 393 | { |
| 394 | .name = "aldo5", |
| 395 | .id = ALDO5, |
| 396 | .ops = &lp8788_ldo_voltage_fixed_ops, |
Axel Lin | 74c8cfd | 2012-07-20 20:31:19 +0800 | [diff] [blame] | 397 | .n_voltages = 1, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 398 | .type = REGULATOR_VOLTAGE, |
| 399 | .owner = THIS_MODULE, |
| 400 | .enable_reg = LP8788_EN_LDO_C, |
| 401 | .enable_mask = LP8788_EN_ALDO5_M, |
Axel Lin | b5366e5 | 2013-04-01 23:28:48 +0800 | [diff] [blame] | 402 | .min_uV = 2850000, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 403 | }, |
| 404 | { |
| 405 | .name = "aldo6", |
| 406 | .id = ALDO6, |
| 407 | .ops = &lp8788_ldo_voltage_table_ops, |
| 408 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), |
| 409 | .volt_table = lp8788_dldo578_aldo6_vtbl, |
| 410 | .type = REGULATOR_VOLTAGE, |
| 411 | .owner = THIS_MODULE, |
| 412 | .vsel_reg = LP8788_ALDO6_VOUT, |
| 413 | .vsel_mask = LP8788_VOUT_4BIT_M, |
| 414 | .enable_reg = LP8788_EN_LDO_C, |
| 415 | .enable_mask = LP8788_EN_ALDO6_M, |
| 416 | }, |
| 417 | { |
| 418 | .name = "aldo7", |
| 419 | .id = ALDO7, |
| 420 | .ops = &lp8788_ldo_voltage_table_ops, |
| 421 | .n_voltages = ARRAY_SIZE(lp8788_aldo7_vtbl), |
| 422 | .volt_table = lp8788_aldo7_vtbl, |
| 423 | .type = REGULATOR_VOLTAGE, |
| 424 | .owner = THIS_MODULE, |
| 425 | .vsel_reg = LP8788_ALDO7_VOUT, |
| 426 | .vsel_mask = LP8788_VOUT_3BIT_M, |
| 427 | .enable_reg = LP8788_EN_LDO_C, |
| 428 | .enable_mask = LP8788_EN_ALDO7_M, |
| 429 | }, |
| 430 | { |
| 431 | .name = "aldo8", |
| 432 | .id = ALDO8, |
| 433 | .ops = &lp8788_ldo_voltage_fixed_ops, |
Axel Lin | 74c8cfd | 2012-07-20 20:31:19 +0800 | [diff] [blame] | 434 | .n_voltages = 1, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 435 | .type = REGULATOR_VOLTAGE, |
| 436 | .owner = THIS_MODULE, |
| 437 | .enable_reg = LP8788_EN_LDO_C, |
| 438 | .enable_mask = LP8788_EN_ALDO8_M, |
Axel Lin | b5366e5 | 2013-04-01 23:28:48 +0800 | [diff] [blame] | 439 | .min_uV = 2500000, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 440 | }, |
| 441 | { |
| 442 | .name = "aldo9", |
| 443 | .id = ALDO9, |
| 444 | .ops = &lp8788_ldo_voltage_fixed_ops, |
Axel Lin | 74c8cfd | 2012-07-20 20:31:19 +0800 | [diff] [blame] | 445 | .n_voltages = 1, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 446 | .type = REGULATOR_VOLTAGE, |
| 447 | .owner = THIS_MODULE, |
| 448 | .enable_reg = LP8788_EN_LDO_C, |
| 449 | .enable_mask = LP8788_EN_ALDO9_M, |
Axel Lin | b5366e5 | 2013-04-01 23:28:48 +0800 | [diff] [blame] | 450 | .min_uV = 2500000, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 451 | }, |
| 452 | { |
| 453 | .name = "aldo10", |
| 454 | .id = ALDO10, |
| 455 | .ops = &lp8788_ldo_voltage_fixed_ops, |
Axel Lin | 74c8cfd | 2012-07-20 20:31:19 +0800 | [diff] [blame] | 456 | .n_voltages = 1, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 457 | .type = REGULATOR_VOLTAGE, |
| 458 | .owner = THIS_MODULE, |
| 459 | .enable_reg = LP8788_EN_LDO_C, |
| 460 | .enable_mask = LP8788_EN_ALDO10_M, |
Axel Lin | b5366e5 | 2013-04-01 23:28:48 +0800 | [diff] [blame] | 461 | .min_uV = 1100000, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 462 | }, |
| 463 | }; |
| 464 | |
Kim, Milo | f02a391 | 2013-01-03 06:32:26 +0000 | [diff] [blame] | 465 | static int lp8788_config_ldo_enable_mode(struct platform_device *pdev, |
| 466 | struct lp8788_ldo *ldo, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 467 | enum lp8788_ldo_id id) |
| 468 | { |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 469 | struct lp8788 *lp = ldo->lp; |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 470 | enum lp8788_ext_ldo_en_id enable_id; |
| 471 | u8 en_mask[] = { |
| 472 | [EN_ALDO1] = LP8788_EN_SEL_ALDO1_M, |
| 473 | [EN_ALDO234] = LP8788_EN_SEL_ALDO234_M, |
| 474 | [EN_ALDO5] = LP8788_EN_SEL_ALDO5_M, |
| 475 | [EN_ALDO7] = LP8788_EN_SEL_ALDO7_M, |
| 476 | [EN_DLDO7] = LP8788_EN_SEL_DLDO7_M, |
| 477 | [EN_DLDO911] = LP8788_EN_SEL_DLDO911_M, |
| 478 | }; |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 479 | |
| 480 | switch (id) { |
| 481 | case DLDO7: |
| 482 | enable_id = EN_DLDO7; |
| 483 | break; |
| 484 | case DLDO9: |
| 485 | case DLDO11: |
| 486 | enable_id = EN_DLDO911; |
| 487 | break; |
| 488 | case ALDO1: |
| 489 | enable_id = EN_ALDO1; |
| 490 | break; |
| 491 | case ALDO2 ... ALDO4: |
| 492 | enable_id = EN_ALDO234; |
| 493 | break; |
| 494 | case ALDO5: |
| 495 | enable_id = EN_ALDO5; |
| 496 | break; |
| 497 | case ALDO7: |
| 498 | enable_id = EN_ALDO7; |
| 499 | break; |
| 500 | default: |
| 501 | return 0; |
| 502 | } |
| 503 | |
Linus Walleij | 2bb8ede | 2018-12-06 13:43:40 +0100 | [diff] [blame] | 504 | /* |
| 505 | * Do not use devm* here: the regulator core takes over the |
| 506 | * lifecycle management of the GPIO descriptor. |
| 507 | * FIXME: check default mode for GPIO here: high or low? |
| 508 | */ |
| 509 | ldo->ena_gpiod = gpiod_get_index_optional(&pdev->dev, |
Linus Walleij | 63239e4 | 2018-10-15 11:02:40 +0200 | [diff] [blame] | 510 | "enable", |
| 511 | enable_id, |
| 512 | GPIOD_OUT_HIGH | |
| 513 | GPIOD_FLAGS_BIT_NONEXCLUSIVE); |
Linus Walleij | 2468f0d | 2018-05-14 10:06:28 +0200 | [diff] [blame] | 514 | if (IS_ERR(ldo->ena_gpiod)) |
| 515 | return PTR_ERR(ldo->ena_gpiod); |
| 516 | |
| 517 | /* if no GPIO for ldo pin, then set default enable mode */ |
| 518 | if (!ldo->ena_gpiod) |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 519 | goto set_default_ldo_enable_mode; |
| 520 | |
Kim, Milo | 407945f | 2013-02-18 06:51:02 +0000 | [diff] [blame] | 521 | return 0; |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 522 | |
| 523 | set_default_ldo_enable_mode: |
Axel Lin | 40b5aa8 | 2012-12-07 09:47:57 +0800 | [diff] [blame] | 524 | return lp8788_update_bits(lp, LP8788_EN_SEL, en_mask[enable_id], 0); |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 525 | } |
| 526 | |
Bill Pemberton | a502357 | 2012-11-19 13:22:22 -0500 | [diff] [blame] | 527 | static int lp8788_dldo_probe(struct platform_device *pdev) |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 528 | { |
| 529 | struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent); |
| 530 | int id = pdev->id; |
| 531 | struct lp8788_ldo *ldo; |
| 532 | struct regulator_config cfg = { }; |
| 533 | struct regulator_dev *rdev; |
| 534 | int ret; |
| 535 | |
Kim, Milo | 939e88f | 2013-01-03 06:32:11 +0000 | [diff] [blame] | 536 | ldo = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_ldo), GFP_KERNEL); |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 537 | if (!ldo) |
| 538 | return -ENOMEM; |
| 539 | |
| 540 | ldo->lp = lp; |
Axel Lin | 80abd60 | 2013-04-01 23:26:24 +0800 | [diff] [blame] | 541 | ret = lp8788_config_ldo_enable_mode(pdev, ldo, id); |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 542 | if (ret) |
| 543 | return ret; |
| 544 | |
Linus Walleij | 2468f0d | 2018-05-14 10:06:28 +0200 | [diff] [blame] | 545 | if (ldo->ena_gpiod) |
| 546 | cfg.ena_gpiod = ldo->ena_gpiod; |
Kim, Milo | 407945f | 2013-02-18 06:51:02 +0000 | [diff] [blame] | 547 | |
Kim, Milo | 939e88f | 2013-01-03 06:32:11 +0000 | [diff] [blame] | 548 | cfg.dev = pdev->dev.parent; |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 549 | cfg.init_data = lp->pdata ? lp->pdata->dldo_data[id] : NULL; |
| 550 | cfg.driver_data = ldo; |
| 551 | cfg.regmap = lp->regmap; |
| 552 | |
Jingoo Han | 0b7bb09 | 2013-09-30 09:55:51 +0900 | [diff] [blame] | 553 | rdev = devm_regulator_register(&pdev->dev, &lp8788_dldo_desc[id], &cfg); |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 554 | if (IS_ERR(rdev)) { |
| 555 | ret = PTR_ERR(rdev); |
Kim, Milo | 939e88f | 2013-01-03 06:32:11 +0000 | [diff] [blame] | 556 | dev_err(&pdev->dev, "DLDO%d regulator register err = %d\n", |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 557 | id + 1, ret); |
| 558 | return ret; |
| 559 | } |
| 560 | |
| 561 | ldo->regulator = rdev; |
| 562 | platform_set_drvdata(pdev, ldo); |
| 563 | |
| 564 | return 0; |
| 565 | } |
| 566 | |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 567 | static struct platform_driver lp8788_dldo_driver = { |
| 568 | .probe = lp8788_dldo_probe, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 569 | .driver = { |
| 570 | .name = LP8788_DEV_DLDO, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 571 | }, |
| 572 | }; |
| 573 | |
Bill Pemberton | a502357 | 2012-11-19 13:22:22 -0500 | [diff] [blame] | 574 | static int lp8788_aldo_probe(struct platform_device *pdev) |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 575 | { |
| 576 | struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent); |
| 577 | int id = pdev->id; |
| 578 | struct lp8788_ldo *ldo; |
| 579 | struct regulator_config cfg = { }; |
| 580 | struct regulator_dev *rdev; |
| 581 | int ret; |
| 582 | |
Kim, Milo | 939e88f | 2013-01-03 06:32:11 +0000 | [diff] [blame] | 583 | ldo = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_ldo), GFP_KERNEL); |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 584 | if (!ldo) |
| 585 | return -ENOMEM; |
| 586 | |
| 587 | ldo->lp = lp; |
Axel Lin | 80abd60 | 2013-04-01 23:26:24 +0800 | [diff] [blame] | 588 | ret = lp8788_config_ldo_enable_mode(pdev, ldo, id + ALDO1); |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 589 | if (ret) |
| 590 | return ret; |
| 591 | |
Linus Walleij | 2468f0d | 2018-05-14 10:06:28 +0200 | [diff] [blame] | 592 | if (ldo->ena_gpiod) |
| 593 | cfg.ena_gpiod = ldo->ena_gpiod; |
Kim, Milo | 407945f | 2013-02-18 06:51:02 +0000 | [diff] [blame] | 594 | |
Kim, Milo | 939e88f | 2013-01-03 06:32:11 +0000 | [diff] [blame] | 595 | cfg.dev = pdev->dev.parent; |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 596 | cfg.init_data = lp->pdata ? lp->pdata->aldo_data[id] : NULL; |
| 597 | cfg.driver_data = ldo; |
| 598 | cfg.regmap = lp->regmap; |
| 599 | |
Jingoo Han | 0b7bb09 | 2013-09-30 09:55:51 +0900 | [diff] [blame] | 600 | rdev = devm_regulator_register(&pdev->dev, &lp8788_aldo_desc[id], &cfg); |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 601 | if (IS_ERR(rdev)) { |
| 602 | ret = PTR_ERR(rdev); |
Kim, Milo | 939e88f | 2013-01-03 06:32:11 +0000 | [diff] [blame] | 603 | dev_err(&pdev->dev, "ALDO%d regulator register err = %d\n", |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 604 | id + 1, ret); |
| 605 | return ret; |
| 606 | } |
| 607 | |
| 608 | ldo->regulator = rdev; |
| 609 | platform_set_drvdata(pdev, ldo); |
| 610 | |
| 611 | return 0; |
| 612 | } |
| 613 | |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 614 | static struct platform_driver lp8788_aldo_driver = { |
| 615 | .probe = lp8788_aldo_probe, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 616 | .driver = { |
| 617 | .name = LP8788_DEV_ALDO, |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 618 | }, |
| 619 | }; |
| 620 | |
Thierry Reding | 7629cef | 2015-12-02 17:32:51 +0100 | [diff] [blame] | 621 | static struct platform_driver * const drivers[] = { |
| 622 | &lp8788_dldo_driver, |
| 623 | &lp8788_aldo_driver, |
| 624 | }; |
| 625 | |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 626 | static int __init lp8788_ldo_init(void) |
| 627 | { |
Thierry Reding | 7629cef | 2015-12-02 17:32:51 +0100 | [diff] [blame] | 628 | return platform_register_drivers(drivers, ARRAY_SIZE(drivers)); |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 629 | } |
| 630 | subsys_initcall(lp8788_ldo_init); |
| 631 | |
| 632 | static void __exit lp8788_ldo_exit(void) |
| 633 | { |
Thierry Reding | 7629cef | 2015-12-02 17:32:51 +0100 | [diff] [blame] | 634 | platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); |
Kim, Milo | ade7515 | 2012-07-18 14:32:57 +0000 | [diff] [blame] | 635 | } |
| 636 | module_exit(lp8788_ldo_exit); |
| 637 | |
| 638 | MODULE_DESCRIPTION("TI LP8788 LDO Driver"); |
| 639 | MODULE_AUTHOR("Milo Kim"); |
| 640 | MODULE_LICENSE("GPL"); |
| 641 | MODULE_ALIAS("platform:lp8788-dldo"); |
| 642 | MODULE_ALIAS("platform:lp8788-aldo"); |