1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Core, IRQ and I2C device driver for DA9061 and DA9062 PMICs 4 * Copyright (C) 2015-2017 Dialog Semiconductor 5 */ 6 7 #include <linux/kernel.h> 8 #include <linux/module.h> 9 #include <linux/init.h> 10 #include <linux/device.h> 11 #include <linux/interrupt.h> 12 #include <linux/regmap.h> 13 #include <linux/irq.h> 14 #include <linux/mfd/core.h> 15 #include <linux/i2c.h> 16 #include <linux/mfd/da9062/core.h> 17 #include <linux/mfd/da9062/registers.h> 18 #include <linux/regulator/of_regulator.h> 19 20 #define DA9062_REG_EVENT_A_OFFSET 0 21 #define DA9062_REG_EVENT_B_OFFSET 1 22 #define DA9062_REG_EVENT_C_OFFSET 2 23 24 #define DA9062_IRQ_LOW 0 25 #define DA9062_IRQ_HIGH 1 26 27 static struct regmap_irq da9061_irqs[] = { 28 /* EVENT A */ 29 [DA9061_IRQ_ONKEY] = { 30 .reg_offset = DA9062_REG_EVENT_A_OFFSET, 31 .mask = DA9062AA_M_NONKEY_MASK, 32 }, 33 [DA9061_IRQ_WDG_WARN] = { 34 .reg_offset = DA9062_REG_EVENT_A_OFFSET, 35 .mask = DA9062AA_M_WDG_WARN_MASK, 36 }, 37 [DA9061_IRQ_SEQ_RDY] = { 38 .reg_offset = DA9062_REG_EVENT_A_OFFSET, 39 .mask = DA9062AA_M_SEQ_RDY_MASK, 40 }, 41 /* EVENT B */ 42 [DA9061_IRQ_TEMP] = { 43 .reg_offset = DA9062_REG_EVENT_B_OFFSET, 44 .mask = DA9062AA_M_TEMP_MASK, 45 }, 46 [DA9061_IRQ_LDO_LIM] = { 47 .reg_offset = DA9062_REG_EVENT_B_OFFSET, 48 .mask = DA9062AA_M_LDO_LIM_MASK, 49 }, 50 [DA9061_IRQ_DVC_RDY] = { 51 .reg_offset = DA9062_REG_EVENT_B_OFFSET, 52 .mask = DA9062AA_M_DVC_RDY_MASK, 53 }, 54 [DA9061_IRQ_VDD_WARN] = { 55 .reg_offset = DA9062_REG_EVENT_B_OFFSET, 56 .mask = DA9062AA_M_VDD_WARN_MASK, 57 }, 58 /* EVENT C */ 59 [DA9061_IRQ_GPI0] = { 60 .reg_offset = DA9062_REG_EVENT_C_OFFSET, 61 .mask = DA9062AA_M_GPI0_MASK, 62 }, 63 [DA9061_IRQ_GPI1] = { 64 .reg_offset = DA9062_REG_EVENT_C_OFFSET, 65 .mask = DA9062AA_M_GPI1_MASK, 66 }, 67 [DA9061_IRQ_GPI2] = { 68 .reg_offset = DA9062_REG_EVENT_C_OFFSET, 69 .mask = DA9062AA_M_GPI2_MASK, 70 }, 71 [DA9061_IRQ_GPI3] = { 72 .reg_offset = DA9062_REG_EVENT_C_OFFSET, 73 .mask = DA9062AA_M_GPI3_MASK, 74 }, 75 [DA9061_IRQ_GPI4] = { 76 .reg_offset = DA9062_REG_EVENT_C_OFFSET, 77 .mask = DA9062AA_M_GPI4_MASK, 78 }, 79 }; 80 81 static struct regmap_irq_chip da9061_irq_chip = { 82 .name = "da9061-irq", 83 .irqs = da9061_irqs, 84 .num_irqs = DA9061_NUM_IRQ, 85 .num_regs = 3, 86 .status_base = DA9062AA_EVENT_A, 87 .mask_base = DA9062AA_IRQ_MASK_A, 88 .ack_base = DA9062AA_EVENT_A, 89 }; 90 91 static struct regmap_irq da9062_irqs[] = { 92 /* EVENT A */ 93 [DA9062_IRQ_ONKEY] = { 94 .reg_offset = DA9062_REG_EVENT_A_OFFSET, 95 .mask = DA9062AA_M_NONKEY_MASK, 96 }, 97 [DA9062_IRQ_ALARM] = { 98 .reg_offset = DA9062_REG_EVENT_A_OFFSET, 99 .mask = DA9062AA_M_ALARM_MASK, 100 }, 101 [DA9062_IRQ_TICK] = { 102 .reg_offset = DA9062_REG_EVENT_A_OFFSET, 103 .mask = DA9062AA_M_TICK_MASK, 104 }, 105 [DA9062_IRQ_WDG_WARN] = { 106 .reg_offset = DA9062_REG_EVENT_A_OFFSET, 107 .mask = DA9062AA_M_WDG_WARN_MASK, 108 }, 109 [DA9062_IRQ_SEQ_RDY] = { 110 .reg_offset = DA9062_REG_EVENT_A_OFFSET, 111 .mask = DA9062AA_M_SEQ_RDY_MASK, 112 }, 113 /* EVENT B */ 114 [DA9062_IRQ_TEMP] = { 115 .reg_offset = DA9062_REG_EVENT_B_OFFSET, 116 .mask = DA9062AA_M_TEMP_MASK, 117 }, 118 [DA9062_IRQ_LDO_LIM] = { 119 .reg_offset = DA9062_REG_EVENT_B_OFFSET, 120 .mask = DA9062AA_M_LDO_LIM_MASK, 121 }, 122 [DA9062_IRQ_DVC_RDY] = { 123 .reg_offset = DA9062_REG_EVENT_B_OFFSET, 124 .mask = DA9062AA_M_DVC_RDY_MASK, 125 }, 126 [DA9062_IRQ_VDD_WARN] = { 127 .reg_offset = DA9062_REG_EVENT_B_OFFSET, 128 .mask = DA9062AA_M_VDD_WARN_MASK, 129 }, 130 /* EVENT C */ 131 [DA9062_IRQ_GPI0] = { 132 .reg_offset = DA9062_REG_EVENT_C_OFFSET, 133 .mask = DA9062AA_M_GPI0_MASK, 134 }, 135 [DA9062_IRQ_GPI1] = { 136 .reg_offset = DA9062_REG_EVENT_C_OFFSET, 137 .mask = DA9062AA_M_GPI1_MASK, 138 }, 139 [DA9062_IRQ_GPI2] = { 140 .reg_offset = DA9062_REG_EVENT_C_OFFSET, 141 .mask = DA9062AA_M_GPI2_MASK, 142 }, 143 [DA9062_IRQ_GPI3] = { 144 .reg_offset = DA9062_REG_EVENT_C_OFFSET, 145 .mask = DA9062AA_M_GPI3_MASK, 146 }, 147 [DA9062_IRQ_GPI4] = { 148 .reg_offset = DA9062_REG_EVENT_C_OFFSET, 149 .mask = DA9062AA_M_GPI4_MASK, 150 }, 151 }; 152 153 static struct regmap_irq_chip da9062_irq_chip = { 154 .name = "da9062-irq", 155 .irqs = da9062_irqs, 156 .num_irqs = DA9062_NUM_IRQ, 157 .num_regs = 3, 158 .status_base = DA9062AA_EVENT_A, 159 .mask_base = DA9062AA_IRQ_MASK_A, 160 .ack_base = DA9062AA_EVENT_A, 161 }; 162 163 static struct resource da9061_core_resources[] = { 164 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_VDD_WARN, "VDD_WARN"), 165 }; 166 167 static struct resource da9061_regulators_resources[] = { 168 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_LDO_LIM, "LDO_LIM"), 169 }; 170 171 static struct resource da9061_thermal_resources[] = { 172 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_TEMP, "THERMAL"), 173 }; 174 175 static struct resource da9061_wdt_resources[] = { 176 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_WDG_WARN, "WD_WARN"), 177 }; 178 179 static struct resource da9061_onkey_resources[] = { 180 DEFINE_RES_IRQ_NAMED(DA9061_IRQ_ONKEY, "ONKEY"), 181 }; 182 183 static const struct mfd_cell da9061_devs[] = { 184 { 185 .name = "da9061-core", 186 .num_resources = ARRAY_SIZE(da9061_core_resources), 187 .resources = da9061_core_resources, 188 }, 189 { 190 .name = "da9062-regulators", 191 .num_resources = ARRAY_SIZE(da9061_regulators_resources), 192 .resources = da9061_regulators_resources, 193 }, 194 { 195 .name = "da9061-watchdog", 196 .num_resources = ARRAY_SIZE(da9061_wdt_resources), 197 .resources = da9061_wdt_resources, 198 .of_compatible = "dlg,da9061-watchdog", 199 }, 200 { 201 .name = "da9061-thermal", 202 .num_resources = ARRAY_SIZE(da9061_thermal_resources), 203 .resources = da9061_thermal_resources, 204 .of_compatible = "dlg,da9061-thermal", 205 }, 206 { 207 .name = "da9061-onkey", 208 .num_resources = ARRAY_SIZE(da9061_onkey_resources), 209 .resources = da9061_onkey_resources, 210 .of_compatible = "dlg,da9061-onkey", 211 }, 212 }; 213 214 static struct resource da9062_core_resources[] = { 215 DEFINE_RES_NAMED(DA9062_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ), 216 }; 217 218 static struct resource da9062_regulators_resources[] = { 219 DEFINE_RES_NAMED(DA9062_IRQ_LDO_LIM, 1, "LDO_LIM", IORESOURCE_IRQ), 220 }; 221 222 static struct resource da9062_thermal_resources[] = { 223 DEFINE_RES_NAMED(DA9062_IRQ_TEMP, 1, "THERMAL", IORESOURCE_IRQ), 224 }; 225 226 static struct resource da9062_wdt_resources[] = { 227 DEFINE_RES_NAMED(DA9062_IRQ_WDG_WARN, 1, "WD_WARN", IORESOURCE_IRQ), 228 }; 229 230 static struct resource da9062_rtc_resources[] = { 231 DEFINE_RES_NAMED(DA9062_IRQ_ALARM, 1, "ALARM", IORESOURCE_IRQ), 232 DEFINE_RES_NAMED(DA9062_IRQ_TICK, 1, "TICK", IORESOURCE_IRQ), 233 }; 234 235 static struct resource da9062_onkey_resources[] = { 236 DEFINE_RES_NAMED(DA9062_IRQ_ONKEY, 1, "ONKEY", IORESOURCE_IRQ), 237 }; 238 239 static struct resource da9062_gpio_resources[] = { 240 DEFINE_RES_NAMED(DA9062_IRQ_GPI0, 1, "GPI0", IORESOURCE_IRQ), 241 DEFINE_RES_NAMED(DA9062_IRQ_GPI1, 1, "GPI1", IORESOURCE_IRQ), 242 DEFINE_RES_NAMED(DA9062_IRQ_GPI2, 1, "GPI2", IORESOURCE_IRQ), 243 DEFINE_RES_NAMED(DA9062_IRQ_GPI3, 1, "GPI3", IORESOURCE_IRQ), 244 DEFINE_RES_NAMED(DA9062_IRQ_GPI4, 1, "GPI4", IORESOURCE_IRQ), 245 }; 246 247 static const struct mfd_cell da9062_devs[] = { 248 { 249 .name = "da9062-core", 250 .num_resources = ARRAY_SIZE(da9062_core_resources), 251 .resources = da9062_core_resources, 252 }, 253 { 254 .name = "da9062-regulators", 255 .num_resources = ARRAY_SIZE(da9062_regulators_resources), 256 .resources = da9062_regulators_resources, 257 }, 258 { 259 .name = "da9062-watchdog", 260 .num_resources = ARRAY_SIZE(da9062_wdt_resources), 261 .resources = da9062_wdt_resources, 262 .of_compatible = "dlg,da9062-watchdog", 263 }, 264 { 265 .name = "da9062-thermal", 266 .num_resources = ARRAY_SIZE(da9062_thermal_resources), 267 .resources = da9062_thermal_resources, 268 .of_compatible = "dlg,da9062-thermal", 269 }, 270 { 271 .name = "da9062-rtc", 272 .num_resources = ARRAY_SIZE(da9062_rtc_resources), 273 .resources = da9062_rtc_resources, 274 .of_compatible = "dlg,da9062-rtc", 275 }, 276 { 277 .name = "da9062-onkey", 278 .num_resources = ARRAY_SIZE(da9062_onkey_resources), 279 .resources = da9062_onkey_resources, 280 .of_compatible = "dlg,da9062-onkey", 281 }, 282 { 283 .name = "da9062-gpio", 284 .num_resources = ARRAY_SIZE(da9062_gpio_resources), 285 .resources = da9062_gpio_resources, 286 .of_compatible = "dlg,da9062-gpio", 287 }, 288 }; 289 290 static int da9062_clear_fault_log(struct da9062 *chip) 291 { 292 int ret; 293 int fault_log; 294 295 ret = regmap_read(chip->regmap, DA9062AA_FAULT_LOG, &fault_log); 296 if (ret < 0) 297 return ret; 298 299 if (fault_log) { 300 if (fault_log & DA9062AA_TWD_ERROR_MASK) 301 dev_dbg(chip->dev, "Fault log entry detected: TWD_ERROR\n"); 302 if (fault_log & DA9062AA_POR_MASK) 303 dev_dbg(chip->dev, "Fault log entry detected: POR\n"); 304 if (fault_log & DA9062AA_VDD_FAULT_MASK) 305 dev_dbg(chip->dev, "Fault log entry detected: VDD_FAULT\n"); 306 if (fault_log & DA9062AA_VDD_START_MASK) 307 dev_dbg(chip->dev, "Fault log entry detected: VDD_START\n"); 308 if (fault_log & DA9062AA_TEMP_CRIT_MASK) 309 dev_dbg(chip->dev, "Fault log entry detected: TEMP_CRIT\n"); 310 if (fault_log & DA9062AA_KEY_RESET_MASK) 311 dev_dbg(chip->dev, "Fault log entry detected: KEY_RESET\n"); 312 if (fault_log & DA9062AA_NSHUTDOWN_MASK) 313 dev_dbg(chip->dev, "Fault log entry detected: NSHUTDOWN\n"); 314 if (fault_log & DA9062AA_WAIT_SHUT_MASK) 315 dev_dbg(chip->dev, "Fault log entry detected: WAIT_SHUT\n"); 316 317 ret = regmap_write(chip->regmap, DA9062AA_FAULT_LOG, 318 fault_log); 319 } 320 321 return ret; 322 } 323 324 static int da9062_get_device_type(struct da9062 *chip) 325 { 326 int device_id, variant_id, variant_mrc, variant_vrc; 327 char *type; 328 int ret; 329 330 ret = regmap_read(chip->regmap, DA9062AA_DEVICE_ID, &device_id); 331 if (ret < 0) { 332 dev_err(chip->dev, "Cannot read chip ID.\n"); 333 return -EIO; 334 } 335 if (device_id != DA9062_PMIC_DEVICE_ID) { 336 dev_err(chip->dev, "Invalid device ID: 0x%02x\n", device_id); 337 return -ENODEV; 338 } 339 340 ret = regmap_read(chip->regmap, DA9062AA_VARIANT_ID, &variant_id); 341 if (ret < 0) { 342 dev_err(chip->dev, "Cannot read chip variant id.\n"); 343 return -EIO; 344 } 345 346 variant_vrc = (variant_id & DA9062AA_VRC_MASK) >> DA9062AA_VRC_SHIFT; 347 348 switch (variant_vrc) { 349 case DA9062_PMIC_VARIANT_VRC_DA9061: 350 type = "DA9061"; 351 break; 352 case DA9062_PMIC_VARIANT_VRC_DA9062: 353 type = "DA9062"; 354 break; 355 default: 356 type = "Unknown"; 357 break; 358 } 359 360 dev_info(chip->dev, 361 "Device detected (device-ID: 0x%02X, var-ID: 0x%02X, %s)\n", 362 device_id, variant_id, type); 363 364 variant_mrc = (variant_id & DA9062AA_MRC_MASK) >> DA9062AA_MRC_SHIFT; 365 366 if (variant_mrc < DA9062_PMIC_VARIANT_MRC_AA) { 367 dev_err(chip->dev, 368 "Cannot support variant MRC: 0x%02X\n", variant_mrc); 369 return -ENODEV; 370 } 371 372 return ret; 373 } 374 375 static u32 da9062_configure_irq_type(struct da9062 *chip, int irq, u32 *trigger) 376 { 377 u32 irq_type = 0; 378 struct irq_data *irq_data = irq_get_irq_data(irq); 379 380 if (!irq_data) { 381 dev_err(chip->dev, "Invalid IRQ: %d\n", irq); 382 return -EINVAL; 383 } 384 *trigger = irqd_get_trigger_type(irq_data); 385 386 switch (*trigger) { 387 case IRQ_TYPE_LEVEL_HIGH: 388 irq_type = DA9062_IRQ_HIGH; 389 break; 390 case IRQ_TYPE_LEVEL_LOW: 391 irq_type = DA9062_IRQ_LOW; 392 break; 393 default: 394 dev_warn(chip->dev, "Unsupported IRQ type: %d\n", *trigger); 395 return -EINVAL; 396 } 397 return regmap_update_bits(chip->regmap, DA9062AA_CONFIG_A, 398 DA9062AA_IRQ_TYPE_MASK, 399 irq_type << DA9062AA_IRQ_TYPE_SHIFT); 400 } 401 402 static const struct regmap_range da9061_aa_readable_ranges[] = { 403 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B), 404 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C), 405 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C), 406 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4), 407 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_GPIO_OUT3_4), 408 regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT), 409 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT), 410 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT), 411 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1), 412 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3), 413 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15), 414 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31), 415 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_WAIT), 416 regmap_reg_range(DA9062AA_RESET, DA9062AA_BUCK_ILIM_C), 417 regmap_reg_range(DA9062AA_BUCK1_CFG, DA9062AA_BUCK3_CFG), 418 regmap_reg_range(DA9062AA_VBUCK1_A, DA9062AA_VBUCK4_A), 419 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A), 420 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A), 421 regmap_reg_range(DA9062AA_CONFIG_A, DA9062AA_CONFIG_A), 422 regmap_reg_range(DA9062AA_VBUCK1_B, DA9062AA_VBUCK4_B), 423 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B), 424 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B), 425 regmap_reg_range(DA9062AA_INTERFACE, DA9062AA_CONFIG_E), 426 regmap_reg_range(DA9062AA_CONFIG_G, DA9062AA_CONFIG_K), 427 regmap_reg_range(DA9062AA_CONFIG_M, DA9062AA_CONFIG_M), 428 regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19), 429 regmap_reg_range(DA9062AA_DEVICE_ID, DA9062AA_CONFIG_ID), 430 }; 431 432 static const struct regmap_range da9061_aa_writeable_ranges[] = { 433 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_PAGE_CON), 434 regmap_reg_range(DA9062AA_FAULT_LOG, DA9062AA_EVENT_C), 435 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C), 436 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4), 437 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_GPIO_OUT3_4), 438 regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT), 439 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT), 440 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT), 441 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1), 442 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3), 443 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15), 444 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31), 445 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_WAIT), 446 regmap_reg_range(DA9062AA_RESET, DA9062AA_BUCK_ILIM_C), 447 regmap_reg_range(DA9062AA_BUCK1_CFG, DA9062AA_BUCK3_CFG), 448 regmap_reg_range(DA9062AA_VBUCK1_A, DA9062AA_VBUCK4_A), 449 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A), 450 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A), 451 regmap_reg_range(DA9062AA_CONFIG_A, DA9062AA_CONFIG_A), 452 regmap_reg_range(DA9062AA_VBUCK1_B, DA9062AA_VBUCK4_B), 453 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B), 454 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B), 455 regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19), 456 }; 457 458 static const struct regmap_range da9061_aa_volatile_ranges[] = { 459 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B), 460 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C), 461 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_CONTROL_B), 462 regmap_reg_range(DA9062AA_CONTROL_E, DA9062AA_CONTROL_F), 463 regmap_reg_range(DA9062AA_BUCK1_CONT, DA9062AA_BUCK4_CONT), 464 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT), 465 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT), 466 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1), 467 regmap_reg_range(DA9062AA_SEQ, DA9062AA_SEQ), 468 }; 469 470 static const struct regmap_access_table da9061_aa_readable_table = { 471 .yes_ranges = da9061_aa_readable_ranges, 472 .n_yes_ranges = ARRAY_SIZE(da9061_aa_readable_ranges), 473 }; 474 475 static const struct regmap_access_table da9061_aa_writeable_table = { 476 .yes_ranges = da9061_aa_writeable_ranges, 477 .n_yes_ranges = ARRAY_SIZE(da9061_aa_writeable_ranges), 478 }; 479 480 static const struct regmap_access_table da9061_aa_volatile_table = { 481 .yes_ranges = da9061_aa_volatile_ranges, 482 .n_yes_ranges = ARRAY_SIZE(da9061_aa_volatile_ranges), 483 }; 484 485 static const struct regmap_range_cfg da9061_range_cfg[] = { 486 { 487 .range_min = DA9062AA_PAGE_CON, 488 .range_max = DA9062AA_CONFIG_ID, 489 .selector_reg = DA9062AA_PAGE_CON, 490 .selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT, 491 .selector_shift = DA9062_I2C_PAGE_SEL_SHIFT, 492 .window_start = 0, 493 .window_len = 256, 494 } 495 }; 496 497 static struct regmap_config da9061_regmap_config = { 498 .reg_bits = 8, 499 .val_bits = 8, 500 .ranges = da9061_range_cfg, 501 .num_ranges = ARRAY_SIZE(da9061_range_cfg), 502 .max_register = DA9062AA_CONFIG_ID, 503 .cache_type = REGCACHE_RBTREE, 504 .rd_table = &da9061_aa_readable_table, 505 .wr_table = &da9061_aa_writeable_table, 506 .volatile_table = &da9061_aa_volatile_table, 507 }; 508 509 static const struct regmap_range da9062_aa_readable_ranges[] = { 510 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B), 511 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C), 512 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C), 513 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4), 514 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_BUCK4_CONT), 515 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT), 516 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT), 517 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1), 518 regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_SECOND_D), 519 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3), 520 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15), 521 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31), 522 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_BUCK3_CFG), 523 regmap_reg_range(DA9062AA_VBUCK2_A, DA9062AA_VBUCK4_A), 524 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A), 525 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A), 526 regmap_reg_range(DA9062AA_VBUCK2_B, DA9062AA_VBUCK4_B), 527 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B), 528 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B), 529 regmap_reg_range(DA9062AA_BBAT_CONT, DA9062AA_BBAT_CONT), 530 regmap_reg_range(DA9062AA_INTERFACE, DA9062AA_CONFIG_E), 531 regmap_reg_range(DA9062AA_CONFIG_G, DA9062AA_CONFIG_K), 532 regmap_reg_range(DA9062AA_CONFIG_M, DA9062AA_CONFIG_M), 533 regmap_reg_range(DA9062AA_TRIM_CLDR, DA9062AA_GP_ID_19), 534 regmap_reg_range(DA9062AA_DEVICE_ID, DA9062AA_CONFIG_ID), 535 }; 536 537 static const struct regmap_range da9062_aa_writeable_ranges[] = { 538 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_PAGE_CON), 539 regmap_reg_range(DA9062AA_FAULT_LOG, DA9062AA_EVENT_C), 540 regmap_reg_range(DA9062AA_IRQ_MASK_A, DA9062AA_IRQ_MASK_C), 541 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_GPIO_4), 542 regmap_reg_range(DA9062AA_GPIO_WKUP_MODE, DA9062AA_BUCK4_CONT), 543 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT), 544 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT), 545 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1), 546 regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_ALARM_Y), 547 regmap_reg_range(DA9062AA_SEQ, DA9062AA_ID_4_3), 548 regmap_reg_range(DA9062AA_ID_12_11, DA9062AA_ID_16_15), 549 regmap_reg_range(DA9062AA_ID_22_21, DA9062AA_ID_32_31), 550 regmap_reg_range(DA9062AA_SEQ_A, DA9062AA_BUCK3_CFG), 551 regmap_reg_range(DA9062AA_VBUCK2_A, DA9062AA_VBUCK4_A), 552 regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A), 553 regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A), 554 regmap_reg_range(DA9062AA_VBUCK2_B, DA9062AA_VBUCK4_B), 555 regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B), 556 regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B), 557 regmap_reg_range(DA9062AA_BBAT_CONT, DA9062AA_BBAT_CONT), 558 regmap_reg_range(DA9062AA_GP_ID_0, DA9062AA_GP_ID_19), 559 }; 560 561 static const struct regmap_range da9062_aa_volatile_ranges[] = { 562 regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B), 563 regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C), 564 regmap_reg_range(DA9062AA_CONTROL_A, DA9062AA_CONTROL_B), 565 regmap_reg_range(DA9062AA_CONTROL_E, DA9062AA_CONTROL_F), 566 regmap_reg_range(DA9062AA_BUCK2_CONT, DA9062AA_BUCK4_CONT), 567 regmap_reg_range(DA9062AA_BUCK3_CONT, DA9062AA_BUCK3_CONT), 568 regmap_reg_range(DA9062AA_LDO1_CONT, DA9062AA_LDO4_CONT), 569 regmap_reg_range(DA9062AA_DVC_1, DA9062AA_DVC_1), 570 regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_SECOND_D), 571 regmap_reg_range(DA9062AA_SEQ, DA9062AA_SEQ), 572 regmap_reg_range(DA9062AA_EN_32K, DA9062AA_EN_32K), 573 }; 574 575 static const struct regmap_access_table da9062_aa_readable_table = { 576 .yes_ranges = da9062_aa_readable_ranges, 577 .n_yes_ranges = ARRAY_SIZE(da9062_aa_readable_ranges), 578 }; 579 580 static const struct regmap_access_table da9062_aa_writeable_table = { 581 .yes_ranges = da9062_aa_writeable_ranges, 582 .n_yes_ranges = ARRAY_SIZE(da9062_aa_writeable_ranges), 583 }; 584 585 static const struct regmap_access_table da9062_aa_volatile_table = { 586 .yes_ranges = da9062_aa_volatile_ranges, 587 .n_yes_ranges = ARRAY_SIZE(da9062_aa_volatile_ranges), 588 }; 589 590 static const struct regmap_range_cfg da9062_range_cfg[] = { 591 { 592 .range_min = DA9062AA_PAGE_CON, 593 .range_max = DA9062AA_CONFIG_ID, 594 .selector_reg = DA9062AA_PAGE_CON, 595 .selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT, 596 .selector_shift = DA9062_I2C_PAGE_SEL_SHIFT, 597 .window_start = 0, 598 .window_len = 256, 599 } 600 }; 601 602 static struct regmap_config da9062_regmap_config = { 603 .reg_bits = 8, 604 .val_bits = 8, 605 .ranges = da9062_range_cfg, 606 .num_ranges = ARRAY_SIZE(da9062_range_cfg), 607 .max_register = DA9062AA_CONFIG_ID, 608 .cache_type = REGCACHE_RBTREE, 609 .rd_table = &da9062_aa_readable_table, 610 .wr_table = &da9062_aa_writeable_table, 611 .volatile_table = &da9062_aa_volatile_table, 612 }; 613 614 static const struct of_device_id da9062_dt_ids[] = { 615 { .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061, }, 616 { .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062, }, 617 { } 618 }; 619 MODULE_DEVICE_TABLE(of, da9062_dt_ids); 620 621 static int da9062_i2c_probe(struct i2c_client *i2c, 622 const struct i2c_device_id *id) 623 { 624 struct da9062 *chip; 625 const struct of_device_id *match; 626 unsigned int irq_base; 627 const struct mfd_cell *cell; 628 const struct regmap_irq_chip *irq_chip; 629 const struct regmap_config *config; 630 int cell_num; 631 u32 trigger_type = 0; 632 int ret; 633 634 chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL); 635 if (!chip) 636 return -ENOMEM; 637 638 if (i2c->dev.of_node) { 639 match = of_match_node(da9062_dt_ids, i2c->dev.of_node); 640 if (!match) 641 return -EINVAL; 642 643 chip->chip_type = (uintptr_t)match->data; 644 } else { 645 chip->chip_type = id->driver_data; 646 } 647 648 i2c_set_clientdata(i2c, chip); 649 chip->dev = &i2c->dev; 650 651 if (!i2c->irq) { 652 dev_err(chip->dev, "No IRQ configured\n"); 653 return -EINVAL; 654 } 655 656 switch (chip->chip_type) { 657 case COMPAT_TYPE_DA9061: 658 cell = da9061_devs; 659 cell_num = ARRAY_SIZE(da9061_devs); 660 irq_chip = &da9061_irq_chip; 661 config = &da9061_regmap_config; 662 break; 663 case COMPAT_TYPE_DA9062: 664 cell = da9062_devs; 665 cell_num = ARRAY_SIZE(da9062_devs); 666 irq_chip = &da9062_irq_chip; 667 config = &da9062_regmap_config; 668 break; 669 default: 670 dev_err(chip->dev, "Unrecognised chip type\n"); 671 return -ENODEV; 672 } 673 674 chip->regmap = devm_regmap_init_i2c(i2c, config); 675 if (IS_ERR(chip->regmap)) { 676 ret = PTR_ERR(chip->regmap); 677 dev_err(chip->dev, "Failed to allocate register map: %d\n", 678 ret); 679 return ret; 680 } 681 682 ret = da9062_clear_fault_log(chip); 683 if (ret < 0) 684 dev_warn(chip->dev, "Cannot clear fault log\n"); 685 686 ret = da9062_get_device_type(chip); 687 if (ret) 688 return ret; 689 690 ret = da9062_configure_irq_type(chip, i2c->irq, &trigger_type); 691 if (ret < 0) { 692 dev_err(chip->dev, "Failed to configure IRQ type\n"); 693 return ret; 694 } 695 696 ret = regmap_add_irq_chip(chip->regmap, i2c->irq, 697 trigger_type | IRQF_SHARED | IRQF_ONESHOT, 698 -1, irq_chip, &chip->regmap_irq); 699 if (ret) { 700 dev_err(chip->dev, "Failed to request IRQ %d: %d\n", 701 i2c->irq, ret); 702 return ret; 703 } 704 705 irq_base = regmap_irq_chip_get_base(chip->regmap_irq); 706 707 ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, cell, 708 cell_num, NULL, irq_base, 709 NULL); 710 if (ret) { 711 dev_err(chip->dev, "Cannot register child devices\n"); 712 regmap_del_irq_chip(i2c->irq, chip->regmap_irq); 713 return ret; 714 } 715 716 return ret; 717 } 718 719 static int da9062_i2c_remove(struct i2c_client *i2c) 720 { 721 struct da9062 *chip = i2c_get_clientdata(i2c); 722 723 mfd_remove_devices(chip->dev); 724 regmap_del_irq_chip(i2c->irq, chip->regmap_irq); 725 726 return 0; 727 } 728 729 static const struct i2c_device_id da9062_i2c_id[] = { 730 { "da9061", COMPAT_TYPE_DA9061 }, 731 { "da9062", COMPAT_TYPE_DA9062 }, 732 { }, 733 }; 734 MODULE_DEVICE_TABLE(i2c, da9062_i2c_id); 735 736 static struct i2c_driver da9062_i2c_driver = { 737 .driver = { 738 .name = "da9062", 739 .of_match_table = of_match_ptr(da9062_dt_ids), 740 }, 741 .probe = da9062_i2c_probe, 742 .remove = da9062_i2c_remove, 743 .id_table = da9062_i2c_id, 744 }; 745 746 module_i2c_driver(da9062_i2c_driver); 747 748 MODULE_DESCRIPTION("Core device driver for Dialog DA9061 and DA9062"); 749 MODULE_AUTHOR("Steve Twiss <stwiss.opensource@diasemi.com>"); 750 MODULE_LICENSE("GPL"); 751