projects / mirror_ubuntu-hirsute-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| ade7515f KM |
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> | |
| 19 | #include <linux/gpio.h> | |
| 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 | |
| 88 | #define ENABLE GPIOF_OUT_INIT_HIGH | |
| 89 | #define DISABLE GPIOF_OUT_INIT_LOW | |
| 90 | ||
| ade7515f KM |
91 | enum lp8788_ldo_id { |
| 92 | DLDO1, | |
| 93 | DLDO2, | |
| 94 | DLDO3, | |
| 95 | DLDO4, | |
| 96 | DLDO5, | |
| 97 | DLDO6, | |
| 98 | DLDO7, | |
| 99 | DLDO8, | |
| 100 | DLDO9, | |
| 101 | DLDO10, | |
| 102 | DLDO11, | |
| 103 | DLDO12, | |
| 104 | ALDO1, | |
| 105 | ALDO2, | |
| 106 | ALDO3, | |
| 107 | ALDO4, | |
| 108 | ALDO5, | |
| 109 | ALDO6, | |
| 110 | ALDO7, | |
| 111 | ALDO8, | |
| 112 | ALDO9, | |
| 113 | ALDO10, | |
| 114 | }; | |
| 115 | ||
| 116 | struct lp8788_ldo { | |
| 117 | struct lp8788 *lp; | |
| 118 | struct regulator_desc *desc; | |
| 119 | struct regulator_dev *regulator; | |
| 120 | struct lp8788_ldo_enable_pin *en_pin; | |
| 121 | }; | |
| 122 | ||
| 123 | /* DLDO 1, 2, 3, 9 voltage table */ | |
| 4e92920b | 124 | static const int lp8788_dldo1239_vtbl[] = { |
| ade7515f KM |
125 | 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, |
| 126 | 2600000, 2700000, 2800000, 2900000, 3000000, 2850000, 2850000, 2850000, | |
| 127 | 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, | |
| 128 | 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, | |
| 129 | }; | |
| 130 | ||
| 131 | /* DLDO 4 voltage table */ | |
| 132 | static const int lp8788_dldo4_vtbl[] = { 1800000, 3000000 }; | |
| 133 | ||
| 134 | /* DLDO 5, 7, 8 and ALDO 6 voltage table */ | |
| 135 | static const int lp8788_dldo578_aldo6_vtbl[] = { | |
| 136 | 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, | |
| 137 | 2600000, 2700000, 2800000, 2900000, 3000000, 3000000, 3000000, 3000000, | |
| 138 | }; | |
| 139 | ||
| 140 | /* DLDO 6 voltage table */ | |
| 141 | static const int lp8788_dldo6_vtbl[] = { | |
| 142 | 3000000, 3100000, 3200000, 3300000, 3400000, 3500000, 3600000, 3600000, | |
| 143 | }; | |
| 144 | ||
| 145 | /* DLDO 10, 11 voltage table */ | |
| 146 | static const int lp8788_dldo1011_vtbl[] = { | |
| 147 | 1100000, 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, | |
| 148 | 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, | |
| 149 | }; | |
| 150 | ||
| 151 | /* ALDO 1 voltage table */ | |
| 152 | static const int lp8788_aldo1_vtbl[] = { 1800000, 2850000 }; | |
| 153 | ||
| 154 | /* ALDO 7 voltage table */ | |
| 155 | static const int lp8788_aldo7_vtbl[] = { | |
| 156 | 1200000, 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1800000, | |
| 157 | }; | |
| 158 | ||
| 159 | static enum lp8788_ldo_id lp8788_dldo_id[] = { | |
| 160 | DLDO1, | |
| 161 | DLDO2, | |
| 162 | DLDO3, | |
| 163 | DLDO4, | |
| 164 | DLDO5, | |
| 165 | DLDO6, | |
| 166 | DLDO7, | |
| 167 | DLDO8, | |
| 168 | DLDO9, | |
| 169 | DLDO10, | |
| 170 | DLDO11, | |
| 171 | DLDO12, | |
| 172 | }; | |
| 173 | ||
| 174 | static enum lp8788_ldo_id lp8788_aldo_id[] = { | |
| 175 | ALDO1, | |
| 176 | ALDO2, | |
| 177 | ALDO3, | |
| 178 | ALDO4, | |
| 179 | ALDO5, | |
| 180 | ALDO6, | |
| 181 | ALDO7, | |
| 182 | ALDO8, | |
| 183 | ALDO9, | |
| 184 | ALDO10, | |
| 185 | }; | |
| 186 | ||
| ade7515f KM |
187 | static int lp8788_ldo_enable(struct regulator_dev *rdev) |
| 188 | { | |
| 189 | struct lp8788_ldo *ldo = rdev_get_drvdata(rdev); | |
| ade7515f | 190 | |
| b9bb0911 AL |
191 | if (ldo->en_pin) { |
| 192 | gpio_set_value(ldo->en_pin->gpio, ENABLE); | |
| 193 | return 0; | |
| 194 | } else { | |
| ade7515f | 195 | return regulator_enable_regmap(rdev); |
| ade7515f KM |
196 | } |
| 197 | } | |
| 198 | ||
| 199 | static int lp8788_ldo_disable(struct regulator_dev *rdev) | |
| 200 | { | |
| 201 | struct lp8788_ldo *ldo = rdev_get_drvdata(rdev); | |
| ade7515f | 202 | |
| b9bb0911 AL |
203 | if (ldo->en_pin) { |
| 204 | gpio_set_value(ldo->en_pin->gpio, DISABLE); | |
| 205 | return 0; | |
| 206 | } else { | |
| ade7515f | 207 | return regulator_disable_regmap(rdev); |
| ade7515f KM |
208 | } |
| 209 | } | |
| 210 | ||
| 211 | static int lp8788_ldo_is_enabled(struct regulator_dev *rdev) | |
| 212 | { | |
| 213 | struct lp8788_ldo *ldo = rdev_get_drvdata(rdev); | |
| ade7515f | 214 | |
| b9bb0911 AL |
215 | if (ldo->en_pin) |
| 216 | return gpio_get_value(ldo->en_pin->gpio) ? 1 : 0; | |
| 217 | else | |
| ade7515f | 218 | return regulator_is_enabled_regmap(rdev); |
| ade7515f KM |
219 | } |
| 220 | ||
| 221 | static int lp8788_ldo_enable_time(struct regulator_dev *rdev) | |
| 222 | { | |
| 223 | struct lp8788_ldo *ldo = rdev_get_drvdata(rdev); | |
| 224 | enum lp8788_ldo_id id = rdev_get_id(rdev); | |
| 225 | u8 val, addr = LP8788_DLDO1_TIMESTEP + id; | |
| 226 | ||
| 227 | if (lp8788_read_byte(ldo->lp, addr, &val)) | |
| 228 | return -EINVAL; | |
| 229 | ||
| 230 | val = (val & LP8788_STARTUP_TIME_M) >> LP8788_STARTUP_TIME_S; | |
| 231 | ||
| 232 | return ENABLE_TIME_USEC * val; | |
| 233 | } | |
| 234 | ||
| 235 | static int lp8788_ldo_fixed_get_voltage(struct regulator_dev *rdev) | |
| 236 | { | |
| 237 | enum lp8788_ldo_id id = rdev_get_id(rdev); | |
| 238 | ||
| 239 | switch (id) { | |
| 240 | case ALDO2 ... ALDO5: | |
| 241 | return 2850000; | |
| 242 | case DLDO12: | |
| 243 | case ALDO8 ... ALDO9: | |
| 244 | return 2500000; | |
| 245 | case ALDO10: | |
| 246 | return 1100000; | |
| 247 | default: | |
| 248 | return -EINVAL; | |
| 249 | } | |
| 250 | } | |
| 251 | ||
| 252 | static struct regulator_ops lp8788_ldo_voltage_table_ops = { | |
| 253 | .list_voltage = regulator_list_voltage_table, | |
| 254 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
| 255 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
| 256 | .enable = lp8788_ldo_enable, | |
| 257 | .disable = lp8788_ldo_disable, | |
| 258 | .is_enabled = lp8788_ldo_is_enabled, | |
| 259 | .enable_time = lp8788_ldo_enable_time, | |
| 260 | }; | |
| 261 | ||
| 262 | static struct regulator_ops lp8788_ldo_voltage_fixed_ops = { | |
| 263 | .get_voltage = lp8788_ldo_fixed_get_voltage, | |
| 264 | .enable = lp8788_ldo_enable, | |
| 265 | .disable = lp8788_ldo_disable, | |
| 266 | .is_enabled = lp8788_ldo_is_enabled, | |
| 267 | .enable_time = lp8788_ldo_enable_time, | |
| 268 | }; | |
| 269 | ||
| 270 | static struct regulator_desc lp8788_dldo_desc[] = { | |
| 271 | { | |
| 272 | .name = "dldo1", | |
| 273 | .id = DLDO1, | |
| 274 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 275 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), | |
| 276 | .volt_table = lp8788_dldo1239_vtbl, | |
| 277 | .type = REGULATOR_VOLTAGE, | |
| 278 | .owner = THIS_MODULE, | |
| 279 | .vsel_reg = LP8788_DLDO1_VOUT, | |
| 280 | .vsel_mask = LP8788_VOUT_5BIT_M, | |
| 281 | .enable_reg = LP8788_EN_LDO_A, | |
| 282 | .enable_mask = LP8788_EN_DLDO1_M, | |
| 283 | }, | |
| 284 | { | |
| 285 | .name = "dldo2", | |
| 286 | .id = DLDO2, | |
| 287 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 288 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), | |
| 289 | .volt_table = lp8788_dldo1239_vtbl, | |
| 290 | .type = REGULATOR_VOLTAGE, | |
| 291 | .owner = THIS_MODULE, | |
| 292 | .vsel_reg = LP8788_DLDO2_VOUT, | |
| 293 | .vsel_mask = LP8788_VOUT_5BIT_M, | |
| 294 | .enable_reg = LP8788_EN_LDO_A, | |
| 295 | .enable_mask = LP8788_EN_DLDO2_M, | |
| 296 | }, | |
| 297 | { | |
| 298 | .name = "dldo3", | |
| 299 | .id = DLDO3, | |
| 300 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 301 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), | |
| 302 | .volt_table = lp8788_dldo1239_vtbl, | |
| 303 | .type = REGULATOR_VOLTAGE, | |
| 304 | .owner = THIS_MODULE, | |
| 305 | .vsel_reg = LP8788_DLDO3_VOUT, | |
| 306 | .vsel_mask = LP8788_VOUT_5BIT_M, | |
| 307 | .enable_reg = LP8788_EN_LDO_A, | |
| 308 | .enable_mask = LP8788_EN_DLDO3_M, | |
| 309 | }, | |
| 310 | { | |
| 311 | .name = "dldo4", | |
| 312 | .id = DLDO4, | |
| 313 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 314 | .n_voltages = ARRAY_SIZE(lp8788_dldo4_vtbl), | |
| 315 | .volt_table = lp8788_dldo4_vtbl, | |
| 316 | .type = REGULATOR_VOLTAGE, | |
| 317 | .owner = THIS_MODULE, | |
| 318 | .vsel_reg = LP8788_DLDO4_VOUT, | |
| 319 | .vsel_mask = LP8788_VOUT_1BIT_M, | |
| 320 | .enable_reg = LP8788_EN_LDO_A, | |
| 321 | .enable_mask = LP8788_EN_DLDO4_M, | |
| 322 | }, | |
| 323 | { | |
| 324 | .name = "dldo5", | |
| 325 | .id = DLDO5, | |
| 326 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 327 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), | |
| 328 | .volt_table = lp8788_dldo578_aldo6_vtbl, | |
| 329 | .type = REGULATOR_VOLTAGE, | |
| 330 | .owner = THIS_MODULE, | |
| 331 | .vsel_reg = LP8788_DLDO5_VOUT, | |
| 332 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
| 333 | .enable_reg = LP8788_EN_LDO_A, | |
| 334 | .enable_mask = LP8788_EN_DLDO5_M, | |
| 335 | }, | |
| 336 | { | |
| 337 | .name = "dldo6", | |
| 338 | .id = DLDO6, | |
| 339 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 340 | .n_voltages = ARRAY_SIZE(lp8788_dldo6_vtbl), | |
| 341 | .volt_table = lp8788_dldo6_vtbl, | |
| 342 | .type = REGULATOR_VOLTAGE, | |
| 343 | .owner = THIS_MODULE, | |
| 344 | .vsel_reg = LP8788_DLDO6_VOUT, | |
| 345 | .vsel_mask = LP8788_VOUT_3BIT_M, | |
| 346 | .enable_reg = LP8788_EN_LDO_A, | |
| 347 | .enable_mask = LP8788_EN_DLDO6_M, | |
| 348 | }, | |
| 349 | { | |
| 350 | .name = "dldo7", | |
| 351 | .id = DLDO7, | |
| 352 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 353 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), | |
| 354 | .volt_table = lp8788_dldo578_aldo6_vtbl, | |
| 355 | .type = REGULATOR_VOLTAGE, | |
| 356 | .owner = THIS_MODULE, | |
| 357 | .vsel_reg = LP8788_DLDO7_VOUT, | |
| 358 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
| 359 | .enable_reg = LP8788_EN_LDO_A, | |
| 360 | .enable_mask = LP8788_EN_DLDO7_M, | |
| 361 | }, | |
| 362 | { | |
| 363 | .name = "dldo8", | |
| 364 | .id = DLDO8, | |
| 365 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 366 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), | |
| 367 | .volt_table = lp8788_dldo578_aldo6_vtbl, | |
| 368 | .type = REGULATOR_VOLTAGE, | |
| 369 | .owner = THIS_MODULE, | |
| 370 | .vsel_reg = LP8788_DLDO8_VOUT, | |
| 371 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
| 372 | .enable_reg = LP8788_EN_LDO_A, | |
| 373 | .enable_mask = LP8788_EN_DLDO8_M, | |
| 374 | }, | |
| 375 | { | |
| 376 | .name = "dldo9", | |
| 377 | .id = DLDO9, | |
| 378 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 379 | .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl), | |
| 380 | .volt_table = lp8788_dldo1239_vtbl, | |
| 381 | .type = REGULATOR_VOLTAGE, | |
| 382 | .owner = THIS_MODULE, | |
| 383 | .vsel_reg = LP8788_DLDO9_VOUT, | |
| 384 | .vsel_mask = LP8788_VOUT_5BIT_M, | |
| 385 | .enable_reg = LP8788_EN_LDO_B, | |
| 386 | .enable_mask = LP8788_EN_DLDO9_M, | |
| 387 | }, | |
| 388 | { | |
| 389 | .name = "dldo10", | |
| 390 | .id = DLDO10, | |
| 391 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 392 | .n_voltages = ARRAY_SIZE(lp8788_dldo1011_vtbl), | |
| 393 | .volt_table = lp8788_dldo1011_vtbl, | |
| 394 | .type = REGULATOR_VOLTAGE, | |
| 395 | .owner = THIS_MODULE, | |
| 396 | .vsel_reg = LP8788_DLDO10_VOUT, | |
| 397 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
| 398 | .enable_reg = LP8788_EN_LDO_B, | |
| 399 | .enable_mask = LP8788_EN_DLDO10_M, | |
| 400 | }, | |
| 401 | { | |
| 402 | .name = "dldo11", | |
| 403 | .id = DLDO11, | |
| 404 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 405 | .n_voltages = ARRAY_SIZE(lp8788_dldo1011_vtbl), | |
| 406 | .volt_table = lp8788_dldo1011_vtbl, | |
| 407 | .type = REGULATOR_VOLTAGE, | |
| 408 | .owner = THIS_MODULE, | |
| 409 | .vsel_reg = LP8788_DLDO11_VOUT, | |
| 410 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
| 411 | .enable_reg = LP8788_EN_LDO_B, | |
| 412 | .enable_mask = LP8788_EN_DLDO11_M, | |
| 413 | }, | |
| 414 | { | |
| 415 | .name = "dldo12", | |
| 416 | .id = DLDO12, | |
| 417 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
| 74c8cfda | 418 | .n_voltages = 1, |
| ade7515f KM |
419 | .type = REGULATOR_VOLTAGE, |
| 420 | .owner = THIS_MODULE, | |
| 421 | .enable_reg = LP8788_EN_LDO_B, | |
| 422 | .enable_mask = LP8788_EN_DLDO12_M, | |
| 423 | }, | |
| 424 | }; | |
| 425 | ||
| 426 | static struct regulator_desc lp8788_aldo_desc[] = { | |
| 427 | { | |
| 428 | .name = "aldo1", | |
| 429 | .id = ALDO1, | |
| 430 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 431 | .n_voltages = ARRAY_SIZE(lp8788_aldo1_vtbl), | |
| 432 | .volt_table = lp8788_aldo1_vtbl, | |
| 433 | .type = REGULATOR_VOLTAGE, | |
| 434 | .owner = THIS_MODULE, | |
| 435 | .vsel_reg = LP8788_ALDO1_VOUT, | |
| 436 | .vsel_mask = LP8788_VOUT_1BIT_M, | |
| 437 | .enable_reg = LP8788_EN_LDO_B, | |
| 438 | .enable_mask = LP8788_EN_ALDO1_M, | |
| 439 | }, | |
| 440 | { | |
| 441 | .name = "aldo2", | |
| 442 | .id = ALDO2, | |
| 443 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
| 74c8cfda | 444 | .n_voltages = 1, |
| ade7515f KM |
445 | .type = REGULATOR_VOLTAGE, |
| 446 | .owner = THIS_MODULE, | |
| 447 | .enable_reg = LP8788_EN_LDO_B, | |
| 448 | .enable_mask = LP8788_EN_ALDO2_M, | |
| 449 | }, | |
| 450 | { | |
| 451 | .name = "aldo3", | |
| 452 | .id = ALDO3, | |
| 453 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
| 74c8cfda | 454 | .n_voltages = 1, |
| ade7515f KM |
455 | .type = REGULATOR_VOLTAGE, |
| 456 | .owner = THIS_MODULE, | |
| 457 | .enable_reg = LP8788_EN_LDO_B, | |
| 458 | .enable_mask = LP8788_EN_ALDO3_M, | |
| 459 | }, | |
| 460 | { | |
| 461 | .name = "aldo4", | |
| 462 | .id = ALDO4, | |
| 463 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
| 74c8cfda | 464 | .n_voltages = 1, |
| ade7515f KM |
465 | .type = REGULATOR_VOLTAGE, |
| 466 | .owner = THIS_MODULE, | |
| 467 | .enable_reg = LP8788_EN_LDO_B, | |
| 468 | .enable_mask = LP8788_EN_ALDO4_M, | |
| 469 | }, | |
| 470 | { | |
| 471 | .name = "aldo5", | |
| 472 | .id = ALDO5, | |
| 473 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
| 74c8cfda | 474 | .n_voltages = 1, |
| ade7515f KM |
475 | .type = REGULATOR_VOLTAGE, |
| 476 | .owner = THIS_MODULE, | |
| 477 | .enable_reg = LP8788_EN_LDO_C, | |
| 478 | .enable_mask = LP8788_EN_ALDO5_M, | |
| 479 | }, | |
| 480 | { | |
| 481 | .name = "aldo6", | |
| 482 | .id = ALDO6, | |
| 483 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 484 | .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl), | |
| 485 | .volt_table = lp8788_dldo578_aldo6_vtbl, | |
| 486 | .type = REGULATOR_VOLTAGE, | |
| 487 | .owner = THIS_MODULE, | |
| 488 | .vsel_reg = LP8788_ALDO6_VOUT, | |
| 489 | .vsel_mask = LP8788_VOUT_4BIT_M, | |
| 490 | .enable_reg = LP8788_EN_LDO_C, | |
| 491 | .enable_mask = LP8788_EN_ALDO6_M, | |
| 492 | }, | |
| 493 | { | |
| 494 | .name = "aldo7", | |
| 495 | .id = ALDO7, | |
| 496 | .ops = &lp8788_ldo_voltage_table_ops, | |
| 497 | .n_voltages = ARRAY_SIZE(lp8788_aldo7_vtbl), | |
| 498 | .volt_table = lp8788_aldo7_vtbl, | |
| 499 | .type = REGULATOR_VOLTAGE, | |
| 500 | .owner = THIS_MODULE, | |
| 501 | .vsel_reg = LP8788_ALDO7_VOUT, | |
| 502 | .vsel_mask = LP8788_VOUT_3BIT_M, | |
| 503 | .enable_reg = LP8788_EN_LDO_C, | |
| 504 | .enable_mask = LP8788_EN_ALDO7_M, | |
| 505 | }, | |
| 506 | { | |
| 507 | .name = "aldo8", | |
| 508 | .id = ALDO8, | |
| 509 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
| 74c8cfda | 510 | .n_voltages = 1, |
| ade7515f KM |
511 | .type = REGULATOR_VOLTAGE, |
| 512 | .owner = THIS_MODULE, | |
| 513 | .enable_reg = LP8788_EN_LDO_C, | |
| 514 | .enable_mask = LP8788_EN_ALDO8_M, | |
| 515 | }, | |
| 516 | { | |
| 517 | .name = "aldo9", | |
| 518 | .id = ALDO9, | |
| 519 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
| 74c8cfda | 520 | .n_voltages = 1, |
| ade7515f KM |
521 | .type = REGULATOR_VOLTAGE, |
| 522 | .owner = THIS_MODULE, | |
| 523 | .enable_reg = LP8788_EN_LDO_C, | |
| 524 | .enable_mask = LP8788_EN_ALDO9_M, | |
| 525 | }, | |
| 526 | { | |
| 527 | .name = "aldo10", | |
| 528 | .id = ALDO10, | |
| 529 | .ops = &lp8788_ldo_voltage_fixed_ops, | |
| 74c8cfda | 530 | .n_voltages = 1, |
| ade7515f KM |
531 | .type = REGULATOR_VOLTAGE, |
| 532 | .owner = THIS_MODULE, | |
| 533 | .enable_reg = LP8788_EN_LDO_C, | |
| 534 | .enable_mask = LP8788_EN_ALDO10_M, | |
| 535 | }, | |
| 536 | }; | |
| 537 | ||
| f02a3917 KM |
538 | static int lp8788_gpio_request_ldo_en(struct platform_device *pdev, |
| 539 | struct lp8788_ldo *ldo, | |
| ade7515f KM |
540 | enum lp8788_ext_ldo_en_id id) |
| 541 | { | |
| f02a3917 | 542 | struct device *dev = &pdev->dev; |
| ade7515f KM |
543 | struct lp8788_ldo_enable_pin *pin = ldo->en_pin; |
| 544 | int ret, gpio, pinstate; | |
| 545 | char *name[] = { | |
| 546 | [EN_ALDO1] = "LP8788_EN_ALDO1", | |
| 547 | [EN_ALDO234] = "LP8788_EN_ALDO234", | |
| 548 | [EN_ALDO5] = "LP8788_EN_ALDO5", | |
| 549 | [EN_ALDO7] = "LP8788_EN_ALDO7", | |
| 550 | [EN_DLDO7] = "LP8788_EN_DLDO7", | |
| 551 | [EN_DLDO911] = "LP8788_EN_DLDO911", | |
| 552 | }; | |
| 553 | ||
| 554 | gpio = pin->gpio; | |
| 555 | if (!gpio_is_valid(gpio)) { | |
| 556 | dev_err(dev, "invalid gpio: %d\n", gpio); | |
| 557 | return -EINVAL; | |
| 558 | } | |
| 559 | ||
| 560 | pinstate = pin->init_state; | |
| 561 | ret = devm_gpio_request_one(dev, gpio, pinstate, name[id]); | |
| 562 | if (ret == -EBUSY) { | |
| 563 | dev_warn(dev, "gpio%d already used\n", gpio); | |
| 564 | return 0; | |
| 565 | } | |
| 566 | ||
| 567 | return ret; | |
| 568 | } | |
| 569 | ||
| f02a3917 KM |
570 | static int lp8788_config_ldo_enable_mode(struct platform_device *pdev, |
| 571 | struct lp8788_ldo *ldo, | |
| ade7515f KM |
572 | enum lp8788_ldo_id id) |
| 573 | { | |
| 574 | int ret; | |
| 575 | struct lp8788 *lp = ldo->lp; | |
| 576 | struct lp8788_platform_data *pdata = lp->pdata; | |
| 577 | enum lp8788_ext_ldo_en_id enable_id; | |
| 578 | u8 en_mask[] = { | |
| 579 | [EN_ALDO1] = LP8788_EN_SEL_ALDO1_M, | |
| 580 | [EN_ALDO234] = LP8788_EN_SEL_ALDO234_M, | |
| 581 | [EN_ALDO5] = LP8788_EN_SEL_ALDO5_M, | |
| 582 | [EN_ALDO7] = LP8788_EN_SEL_ALDO7_M, | |
| 583 | [EN_DLDO7] = LP8788_EN_SEL_DLDO7_M, | |
| 584 | [EN_DLDO911] = LP8788_EN_SEL_DLDO911_M, | |
| 585 | }; | |
| ade7515f KM |
586 | |
| 587 | switch (id) { | |
| 588 | case DLDO7: | |
| 589 | enable_id = EN_DLDO7; | |
| 590 | break; | |
| 591 | case DLDO9: | |
| 592 | case DLDO11: | |
| 593 | enable_id = EN_DLDO911; | |
| 594 | break; | |
| 595 | case ALDO1: | |
| 596 | enable_id = EN_ALDO1; | |
| 597 | break; | |
| 598 | case ALDO2 ... ALDO4: | |
| 599 | enable_id = EN_ALDO234; | |
| 600 | break; | |
| 601 | case ALDO5: | |
| 602 | enable_id = EN_ALDO5; | |
| 603 | break; | |
| 604 | case ALDO7: | |
| 605 | enable_id = EN_ALDO7; | |
| 606 | break; | |
| 607 | default: | |
| 608 | return 0; | |
| 609 | } | |
| 610 | ||
| 611 | /* if no platform data for ldo pin, then set default enable mode */ | |
| 612 | if (!pdata || !pdata->ldo_pin || !pdata->ldo_pin[enable_id]) | |
| 613 | goto set_default_ldo_enable_mode; | |
| 614 | ||
| 615 | ldo->en_pin = pdata->ldo_pin[enable_id]; | |
| 616 | ||
| f02a3917 | 617 | ret = lp8788_gpio_request_ldo_en(pdev, ldo, enable_id); |
| b9bb0911 AL |
618 | if (ret) { |
| 619 | ldo->en_pin = NULL; | |
| ade7515f | 620 | goto set_default_ldo_enable_mode; |
| b9bb0911 | 621 | } |
| ade7515f KM |
622 | |
| 623 | return ret; | |
| 624 | ||
| 625 | set_default_ldo_enable_mode: | |
| 40b5aa8f | 626 | return lp8788_update_bits(lp, LP8788_EN_SEL, en_mask[enable_id], 0); |
| ade7515f KM |
627 | } |
| 628 | ||
| a5023574 | 629 | static int lp8788_dldo_probe(struct platform_device *pdev) |
| ade7515f KM |
630 | { |
| 631 | struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent); | |
| 632 | int id = pdev->id; | |
| 633 | struct lp8788_ldo *ldo; | |
| 634 | struct regulator_config cfg = { }; | |
| 635 | struct regulator_dev *rdev; | |
| 636 | int ret; | |
| 637 | ||
| 939e88f0 | 638 | ldo = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_ldo), GFP_KERNEL); |
| ade7515f KM |
639 | if (!ldo) |
| 640 | return -ENOMEM; | |
| 641 | ||
| 642 | ldo->lp = lp; | |
| f02a3917 | 643 | ret = lp8788_config_ldo_enable_mode(pdev, ldo, lp8788_dldo_id[id]); |
| ade7515f KM |
644 | if (ret) |
| 645 | return ret; | |
| 646 | ||
| 939e88f0 | 647 | cfg.dev = pdev->dev.parent; |
| ade7515f KM |
648 | cfg.init_data = lp->pdata ? lp->pdata->dldo_data[id] : NULL; |
| 649 | cfg.driver_data = ldo; | |
| 650 | cfg.regmap = lp->regmap; | |
| 651 | ||
| 652 | rdev = regulator_register(&lp8788_dldo_desc[id], &cfg); | |
| 653 | if (IS_ERR(rdev)) { | |
| 654 | ret = PTR_ERR(rdev); | |
| 939e88f0 | 655 | dev_err(&pdev->dev, "DLDO%d regulator register err = %d\n", |
| ade7515f KM |
656 | id + 1, ret); |
| 657 | return ret; | |
| 658 | } | |
| 659 | ||
| 660 | ldo->regulator = rdev; | |
| 661 | platform_set_drvdata(pdev, ldo); | |
| 662 | ||
| 663 | return 0; | |
| 664 | } | |
| 665 | ||
| 8dc995f5 | 666 | static int lp8788_dldo_remove(struct platform_device *pdev) |
| ade7515f KM |
667 | { |
| 668 | struct lp8788_ldo *ldo = platform_get_drvdata(pdev); | |
| 669 | ||
| 670 | platform_set_drvdata(pdev, NULL); | |
| 671 | regulator_unregister(ldo->regulator); | |
| 672 | ||
| 673 | return 0; | |
| 674 | } | |
| 675 | ||
| 676 | static struct platform_driver lp8788_dldo_driver = { | |
| 677 | .probe = lp8788_dldo_probe, | |
| 5eb9f2b9 | 678 | .remove = lp8788_dldo_remove, |
| ade7515f KM |
679 | .driver = { |
| 680 | .name = LP8788_DEV_DLDO, | |
| 681 | .owner = THIS_MODULE, | |
| 682 | }, | |
| 683 | }; | |
| 684 | ||
| a5023574 | 685 | static int lp8788_aldo_probe(struct platform_device *pdev) |
| ade7515f KM |
686 | { |
| 687 | struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent); | |
| 688 | int id = pdev->id; | |
| 689 | struct lp8788_ldo *ldo; | |
| 690 | struct regulator_config cfg = { }; | |
| 691 | struct regulator_dev *rdev; | |
| 692 | int ret; | |
| 693 | ||
| 939e88f0 | 694 | ldo = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_ldo), GFP_KERNEL); |
| ade7515f KM |
695 | if (!ldo) |
| 696 | return -ENOMEM; | |
| 697 | ||
| 698 | ldo->lp = lp; | |
| f02a3917 | 699 | ret = lp8788_config_ldo_enable_mode(pdev, ldo, lp8788_aldo_id[id]); |
| ade7515f KM |
700 | if (ret) |
| 701 | return ret; | |
| 702 | ||
| 939e88f0 | 703 | cfg.dev = pdev->dev.parent; |
| ade7515f KM |
704 | cfg.init_data = lp->pdata ? lp->pdata->aldo_data[id] : NULL; |
| 705 | cfg.driver_data = ldo; | |
| 706 | cfg.regmap = lp->regmap; | |
| 707 | ||
| 708 | rdev = regulator_register(&lp8788_aldo_desc[id], &cfg); | |
| 709 | if (IS_ERR(rdev)) { | |
| 710 | ret = PTR_ERR(rdev); | |
| 939e88f0 | 711 | dev_err(&pdev->dev, "ALDO%d regulator register err = %d\n", |
| ade7515f KM |
712 | id + 1, ret); |
| 713 | return ret; | |
| 714 | } | |
| 715 | ||
| 716 | ldo->regulator = rdev; | |
| 717 | platform_set_drvdata(pdev, ldo); | |
| 718 | ||
| 719 | return 0; | |
| 720 | } | |
| 721 | ||
| 8dc995f5 | 722 | static int lp8788_aldo_remove(struct platform_device *pdev) |
| ade7515f KM |
723 | { |
| 724 | struct lp8788_ldo *ldo = platform_get_drvdata(pdev); | |
| 725 | ||
| 726 | platform_set_drvdata(pdev, NULL); | |
| 727 | regulator_unregister(ldo->regulator); | |
| 728 | ||
| 729 | return 0; | |
| 730 | } | |
| 731 | ||
| 732 | static struct platform_driver lp8788_aldo_driver = { | |
| 733 | .probe = lp8788_aldo_probe, | |
| 5eb9f2b9 | 734 | .remove = lp8788_aldo_remove, |
| ade7515f KM |
735 | .driver = { |
| 736 | .name = LP8788_DEV_ALDO, | |
| 737 | .owner = THIS_MODULE, | |
| 738 | }, | |
| 739 | }; | |
| 740 | ||
| 741 | static int __init lp8788_ldo_init(void) | |
| 742 | { | |
| 743 | int ret; | |
| 744 | ||
| 745 | ret = platform_driver_register(&lp8788_dldo_driver); | |
| 746 | if (ret) | |
| 747 | return ret; | |
| 748 | ||
| 749 | return platform_driver_register(&lp8788_aldo_driver); | |
| 750 | } | |
| 751 | subsys_initcall(lp8788_ldo_init); | |
| 752 | ||
| 753 | static void __exit lp8788_ldo_exit(void) | |
| 754 | { | |
| 755 | platform_driver_unregister(&lp8788_aldo_driver); | |
| 756 | platform_driver_unregister(&lp8788_dldo_driver); | |
| 757 | } | |
| 758 | module_exit(lp8788_ldo_exit); | |
| 759 | ||
| 760 | MODULE_DESCRIPTION("TI LP8788 LDO Driver"); | |
| 761 | MODULE_AUTHOR("Milo Kim"); | |
| 762 | MODULE_LICENSE("GPL"); | |
| 763 | MODULE_ALIAS("platform:lp8788-dldo"); | |
| 764 | MODULE_ALIAS("platform:lp8788-aldo"); |