| 1 | /* |
| 2 | * Core driver for ams AS3722 PMICs |
| 3 | * |
| 4 | * Copyright (C) 2013 AMS AG |
| 5 | * Copyright (c) 2013, NVIDIA Corporation. All rights reserved. |
| 6 | * |
| 7 | * Author: Florian Lobmaier <florian.lobmaier@ams.com> |
| 8 | * Author: Laxman Dewangan <ldewangan@nvidia.com> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 23 | */ |
| 24 | |
| 25 | #include <linux/err.h> |
| 26 | #include <linux/i2c.h> |
| 27 | #include <linux/interrupt.h> |
| 28 | #include <linux/irq.h> |
| 29 | #include <linux/kernel.h> |
| 30 | #include <linux/module.h> |
| 31 | #include <linux/mfd/core.h> |
| 32 | #include <linux/mfd/as3722.h> |
| 33 | #include <linux/of.h> |
| 34 | #include <linux/regmap.h> |
| 35 | #include <linux/slab.h> |
| 36 | |
| 37 | #define AS3722_DEVICE_ID 0x0C |
| 38 | |
| 39 | static const struct resource as3722_rtc_resource[] = { |
| 40 | { |
| 41 | .name = "as3722-rtc-alarm", |
| 42 | .start = AS3722_IRQ_RTC_ALARM, |
| 43 | .end = AS3722_IRQ_RTC_ALARM, |
| 44 | .flags = IORESOURCE_IRQ, |
| 45 | }, |
| 46 | }; |
| 47 | |
| 48 | static const struct resource as3722_adc_resource[] = { |
| 49 | { |
| 50 | .name = "as3722-adc", |
| 51 | .start = AS3722_IRQ_ADC, |
| 52 | .end = AS3722_IRQ_ADC, |
| 53 | .flags = IORESOURCE_IRQ, |
| 54 | }, |
| 55 | }; |
| 56 | |
| 57 | static const struct mfd_cell as3722_devs[] = { |
| 58 | { |
| 59 | .name = "as3722-pinctrl", |
| 60 | }, |
| 61 | { |
| 62 | .name = "as3722-regulator", |
| 63 | }, |
| 64 | { |
| 65 | .name = "as3722-rtc", |
| 66 | .num_resources = ARRAY_SIZE(as3722_rtc_resource), |
| 67 | .resources = as3722_rtc_resource, |
| 68 | }, |
| 69 | { |
| 70 | .name = "as3722-adc", |
| 71 | .num_resources = ARRAY_SIZE(as3722_adc_resource), |
| 72 | .resources = as3722_adc_resource, |
| 73 | }, |
| 74 | { |
| 75 | .name = "as3722-power-off", |
| 76 | }, |
| 77 | { |
| 78 | .name = "as3722-wdt", |
| 79 | }, |
| 80 | }; |
| 81 | |
| 82 | static const struct regmap_irq as3722_irqs[] = { |
| 83 | /* INT1 IRQs */ |
| 84 | [AS3722_IRQ_LID] = { |
| 85 | .mask = AS3722_INTERRUPT_MASK1_LID, |
| 86 | }, |
| 87 | [AS3722_IRQ_ACOK] = { |
| 88 | .mask = AS3722_INTERRUPT_MASK1_ACOK, |
| 89 | }, |
| 90 | [AS3722_IRQ_ENABLE1] = { |
| 91 | .mask = AS3722_INTERRUPT_MASK1_ENABLE1, |
| 92 | }, |
| 93 | [AS3722_IRQ_OCCUR_ALARM_SD0] = { |
| 94 | .mask = AS3722_INTERRUPT_MASK1_OCURR_ALARM_SD0, |
| 95 | }, |
| 96 | [AS3722_IRQ_ONKEY_LONG_PRESS] = { |
| 97 | .mask = AS3722_INTERRUPT_MASK1_ONKEY_LONG, |
| 98 | }, |
| 99 | [AS3722_IRQ_ONKEY] = { |
| 100 | .mask = AS3722_INTERRUPT_MASK1_ONKEY, |
| 101 | }, |
| 102 | [AS3722_IRQ_OVTMP] = { |
| 103 | .mask = AS3722_INTERRUPT_MASK1_OVTMP, |
| 104 | }, |
| 105 | [AS3722_IRQ_LOWBAT] = { |
| 106 | .mask = AS3722_INTERRUPT_MASK1_LOWBAT, |
| 107 | }, |
| 108 | |
| 109 | /* INT2 IRQs */ |
| 110 | [AS3722_IRQ_SD0_LV] = { |
| 111 | .mask = AS3722_INTERRUPT_MASK2_SD0_LV, |
| 112 | .reg_offset = 1, |
| 113 | }, |
| 114 | [AS3722_IRQ_SD1_LV] = { |
| 115 | .mask = AS3722_INTERRUPT_MASK2_SD1_LV, |
| 116 | .reg_offset = 1, |
| 117 | }, |
| 118 | [AS3722_IRQ_SD2_LV] = { |
| 119 | .mask = AS3722_INTERRUPT_MASK2_SD2345_LV, |
| 120 | .reg_offset = 1, |
| 121 | }, |
| 122 | [AS3722_IRQ_PWM1_OV_PROT] = { |
| 123 | .mask = AS3722_INTERRUPT_MASK2_PWM1_OV_PROT, |
| 124 | .reg_offset = 1, |
| 125 | }, |
| 126 | [AS3722_IRQ_PWM2_OV_PROT] = { |
| 127 | .mask = AS3722_INTERRUPT_MASK2_PWM2_OV_PROT, |
| 128 | .reg_offset = 1, |
| 129 | }, |
| 130 | [AS3722_IRQ_ENABLE2] = { |
| 131 | .mask = AS3722_INTERRUPT_MASK2_ENABLE2, |
| 132 | .reg_offset = 1, |
| 133 | }, |
| 134 | [AS3722_IRQ_SD6_LV] = { |
| 135 | .mask = AS3722_INTERRUPT_MASK2_SD6_LV, |
| 136 | .reg_offset = 1, |
| 137 | }, |
| 138 | [AS3722_IRQ_RTC_REP] = { |
| 139 | .mask = AS3722_INTERRUPT_MASK2_RTC_REP, |
| 140 | .reg_offset = 1, |
| 141 | }, |
| 142 | |
| 143 | /* INT3 IRQs */ |
| 144 | [AS3722_IRQ_RTC_ALARM] = { |
| 145 | .mask = AS3722_INTERRUPT_MASK3_RTC_ALARM, |
| 146 | .reg_offset = 2, |
| 147 | }, |
| 148 | [AS3722_IRQ_GPIO1] = { |
| 149 | .mask = AS3722_INTERRUPT_MASK3_GPIO1, |
| 150 | .reg_offset = 2, |
| 151 | }, |
| 152 | [AS3722_IRQ_GPIO2] = { |
| 153 | .mask = AS3722_INTERRUPT_MASK3_GPIO2, |
| 154 | .reg_offset = 2, |
| 155 | }, |
| 156 | [AS3722_IRQ_GPIO3] = { |
| 157 | .mask = AS3722_INTERRUPT_MASK3_GPIO3, |
| 158 | .reg_offset = 2, |
| 159 | }, |
| 160 | [AS3722_IRQ_GPIO4] = { |
| 161 | .mask = AS3722_INTERRUPT_MASK3_GPIO4, |
| 162 | .reg_offset = 2, |
| 163 | }, |
| 164 | [AS3722_IRQ_GPIO5] = { |
| 165 | .mask = AS3722_INTERRUPT_MASK3_GPIO5, |
| 166 | .reg_offset = 2, |
| 167 | }, |
| 168 | [AS3722_IRQ_WATCHDOG] = { |
| 169 | .mask = AS3722_INTERRUPT_MASK3_WATCHDOG, |
| 170 | .reg_offset = 2, |
| 171 | }, |
| 172 | [AS3722_IRQ_ENABLE3] = { |
| 173 | .mask = AS3722_INTERRUPT_MASK3_ENABLE3, |
| 174 | .reg_offset = 2, |
| 175 | }, |
| 176 | |
| 177 | /* INT4 IRQs */ |
| 178 | [AS3722_IRQ_TEMP_SD0_SHUTDOWN] = { |
| 179 | .mask = AS3722_INTERRUPT_MASK4_TEMP_SD0_SHUTDOWN, |
| 180 | .reg_offset = 3, |
| 181 | }, |
| 182 | [AS3722_IRQ_TEMP_SD1_SHUTDOWN] = { |
| 183 | .mask = AS3722_INTERRUPT_MASK4_TEMP_SD1_SHUTDOWN, |
| 184 | .reg_offset = 3, |
| 185 | }, |
| 186 | [AS3722_IRQ_TEMP_SD2_SHUTDOWN] = { |
| 187 | .mask = AS3722_INTERRUPT_MASK4_TEMP_SD6_SHUTDOWN, |
| 188 | .reg_offset = 3, |
| 189 | }, |
| 190 | [AS3722_IRQ_TEMP_SD0_ALARM] = { |
| 191 | .mask = AS3722_INTERRUPT_MASK4_TEMP_SD0_ALARM, |
| 192 | .reg_offset = 3, |
| 193 | }, |
| 194 | [AS3722_IRQ_TEMP_SD1_ALARM] = { |
| 195 | .mask = AS3722_INTERRUPT_MASK4_TEMP_SD1_ALARM, |
| 196 | .reg_offset = 3, |
| 197 | }, |
| 198 | [AS3722_IRQ_TEMP_SD6_ALARM] = { |
| 199 | .mask = AS3722_INTERRUPT_MASK4_TEMP_SD6_ALARM, |
| 200 | .reg_offset = 3, |
| 201 | }, |
| 202 | [AS3722_IRQ_OCCUR_ALARM_SD6] = { |
| 203 | .mask = AS3722_INTERRUPT_MASK4_OCCUR_ALARM_SD6, |
| 204 | .reg_offset = 3, |
| 205 | }, |
| 206 | [AS3722_IRQ_ADC] = { |
| 207 | .mask = AS3722_INTERRUPT_MASK4_ADC, |
| 208 | .reg_offset = 3, |
| 209 | }, |
| 210 | }; |
| 211 | |
| 212 | static const struct regmap_irq_chip as3722_irq_chip = { |
| 213 | .name = "as3722", |
| 214 | .irqs = as3722_irqs, |
| 215 | .num_irqs = ARRAY_SIZE(as3722_irqs), |
| 216 | .num_regs = 4, |
| 217 | .status_base = AS3722_INTERRUPT_STATUS1_REG, |
| 218 | .mask_base = AS3722_INTERRUPT_MASK1_REG, |
| 219 | }; |
| 220 | |
| 221 | static int as3722_check_device_id(struct as3722 *as3722) |
| 222 | { |
| 223 | u32 val; |
| 224 | int ret; |
| 225 | |
| 226 | /* Check that this is actually a AS3722 */ |
| 227 | ret = as3722_read(as3722, AS3722_ASIC_ID1_REG, &val); |
| 228 | if (ret < 0) { |
| 229 | dev_err(as3722->dev, "ASIC_ID1 read failed: %d\n", ret); |
| 230 | return ret; |
| 231 | } |
| 232 | |
| 233 | if (val != AS3722_DEVICE_ID) { |
| 234 | dev_err(as3722->dev, "Device is not AS3722, ID is 0x%x\n", val); |
| 235 | return -ENODEV; |
| 236 | } |
| 237 | |
| 238 | ret = as3722_read(as3722, AS3722_ASIC_ID2_REG, &val); |
| 239 | if (ret < 0) { |
| 240 | dev_err(as3722->dev, "ASIC_ID2 read failed: %d\n", ret); |
| 241 | return ret; |
| 242 | } |
| 243 | |
| 244 | dev_info(as3722->dev, "AS3722 with revision 0x%x found\n", val); |
| 245 | return 0; |
| 246 | } |
| 247 | |
| 248 | static int as3722_configure_pullups(struct as3722 *as3722) |
| 249 | { |
| 250 | int ret; |
| 251 | u32 val = 0; |
| 252 | |
| 253 | if (as3722->en_intern_int_pullup) |
| 254 | val |= AS3722_INT_PULL_UP; |
| 255 | if (as3722->en_intern_i2c_pullup) |
| 256 | val |= AS3722_I2C_PULL_UP; |
| 257 | |
| 258 | ret = as3722_update_bits(as3722, AS3722_IOVOLTAGE_REG, |
| 259 | AS3722_INT_PULL_UP | AS3722_I2C_PULL_UP, val); |
| 260 | if (ret < 0) |
| 261 | dev_err(as3722->dev, "IOVOLTAGE_REG update failed: %d\n", ret); |
| 262 | return ret; |
| 263 | } |
| 264 | |
| 265 | static const struct regmap_range as3722_readable_ranges[] = { |
| 266 | regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_SD6_VOLTAGE_REG), |
| 267 | regmap_reg_range(AS3722_GPIO0_CONTROL_REG, AS3722_LDO7_VOLTAGE_REG), |
| 268 | regmap_reg_range(AS3722_LDO9_VOLTAGE_REG, AS3722_REG_SEQU_MOD3_REG), |
| 269 | regmap_reg_range(AS3722_SD_PHSW_CTRL_REG, AS3722_PWM_CONTROL_H_REG), |
| 270 | regmap_reg_range(AS3722_WATCHDOG_TIMER_REG, AS3722_WATCHDOG_TIMER_REG), |
| 271 | regmap_reg_range(AS3722_WATCHDOG_SOFTWARE_SIGNAL_REG, |
| 272 | AS3722_BATTERY_VOLTAGE_MONITOR2_REG), |
| 273 | regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_PWM_VCONTROL4_REG), |
| 274 | regmap_reg_range(AS3722_BB_CHARGER_REG, AS3722_SRAM_REG), |
| 275 | regmap_reg_range(AS3722_RTC_ACCESS_REG, AS3722_RTC_ACCESS_REG), |
| 276 | regmap_reg_range(AS3722_RTC_STATUS_REG, AS3722_TEMP_STATUS_REG), |
| 277 | regmap_reg_range(AS3722_ADC0_CONTROL_REG, AS3722_ADC_CONFIGURATION_REG), |
| 278 | regmap_reg_range(AS3722_ASIC_ID1_REG, AS3722_ASIC_ID2_REG), |
| 279 | regmap_reg_range(AS3722_LOCK_REG, AS3722_LOCK_REG), |
| 280 | regmap_reg_range(AS3722_FUSE7_REG, AS3722_FUSE7_REG), |
| 281 | }; |
| 282 | |
| 283 | static const struct regmap_access_table as3722_readable_table = { |
| 284 | .yes_ranges = as3722_readable_ranges, |
| 285 | .n_yes_ranges = ARRAY_SIZE(as3722_readable_ranges), |
| 286 | }; |
| 287 | |
| 288 | static const struct regmap_range as3722_writable_ranges[] = { |
| 289 | regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_SD6_VOLTAGE_REG), |
| 290 | regmap_reg_range(AS3722_GPIO0_CONTROL_REG, AS3722_LDO7_VOLTAGE_REG), |
| 291 | regmap_reg_range(AS3722_LDO9_VOLTAGE_REG, AS3722_GPIO_SIGNAL_OUT_REG), |
| 292 | regmap_reg_range(AS3722_REG_SEQU_MOD1_REG, AS3722_REG_SEQU_MOD3_REG), |
| 293 | regmap_reg_range(AS3722_SD_PHSW_CTRL_REG, AS3722_PWM_CONTROL_H_REG), |
| 294 | regmap_reg_range(AS3722_WATCHDOG_TIMER_REG, AS3722_WATCHDOG_TIMER_REG), |
| 295 | regmap_reg_range(AS3722_WATCHDOG_SOFTWARE_SIGNAL_REG, |
| 296 | AS3722_BATTERY_VOLTAGE_MONITOR2_REG), |
| 297 | regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_PWM_VCONTROL4_REG), |
| 298 | regmap_reg_range(AS3722_BB_CHARGER_REG, AS3722_SRAM_REG), |
| 299 | regmap_reg_range(AS3722_INTERRUPT_MASK1_REG, AS3722_TEMP_STATUS_REG), |
| 300 | regmap_reg_range(AS3722_ADC0_CONTROL_REG, AS3722_ADC1_CONTROL_REG), |
| 301 | regmap_reg_range(AS3722_ADC1_THRESHOLD_HI_MSB_REG, |
| 302 | AS3722_ADC_CONFIGURATION_REG), |
| 303 | regmap_reg_range(AS3722_LOCK_REG, AS3722_LOCK_REG), |
| 304 | }; |
| 305 | |
| 306 | static const struct regmap_access_table as3722_writable_table = { |
| 307 | .yes_ranges = as3722_writable_ranges, |
| 308 | .n_yes_ranges = ARRAY_SIZE(as3722_writable_ranges), |
| 309 | }; |
| 310 | |
| 311 | static const struct regmap_range as3722_cacheable_ranges[] = { |
| 312 | regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_LDO11_VOLTAGE_REG), |
| 313 | regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_LDOCONTROL1_REG), |
| 314 | }; |
| 315 | |
| 316 | static const struct regmap_access_table as3722_volatile_table = { |
| 317 | .no_ranges = as3722_cacheable_ranges, |
| 318 | .n_no_ranges = ARRAY_SIZE(as3722_cacheable_ranges), |
| 319 | }; |
| 320 | |
| 321 | static const struct regmap_config as3722_regmap_config = { |
| 322 | .reg_bits = 8, |
| 323 | .val_bits = 8, |
| 324 | .max_register = AS3722_MAX_REGISTER, |
| 325 | .cache_type = REGCACHE_RBTREE, |
| 326 | .rd_table = &as3722_readable_table, |
| 327 | .wr_table = &as3722_writable_table, |
| 328 | .volatile_table = &as3722_volatile_table, |
| 329 | }; |
| 330 | |
| 331 | static int as3722_i2c_of_probe(struct i2c_client *i2c, |
| 332 | struct as3722 *as3722) |
| 333 | { |
| 334 | struct device_node *np = i2c->dev.of_node; |
| 335 | struct irq_data *irq_data; |
| 336 | |
| 337 | if (!np) { |
| 338 | dev_err(&i2c->dev, "Device Tree not found\n"); |
| 339 | return -EINVAL; |
| 340 | } |
| 341 | |
| 342 | irq_data = irq_get_irq_data(i2c->irq); |
| 343 | if (!irq_data) { |
| 344 | dev_err(&i2c->dev, "Invalid IRQ: %d\n", i2c->irq); |
| 345 | return -EINVAL; |
| 346 | } |
| 347 | |
| 348 | as3722->en_intern_int_pullup = of_property_read_bool(np, |
| 349 | "ams,enable-internal-int-pullup"); |
| 350 | as3722->en_intern_i2c_pullup = of_property_read_bool(np, |
| 351 | "ams,enable-internal-i2c-pullup"); |
| 352 | as3722->irq_flags = irqd_get_trigger_type(irq_data); |
| 353 | dev_dbg(&i2c->dev, "IRQ flags are 0x%08lx\n", as3722->irq_flags); |
| 354 | return 0; |
| 355 | } |
| 356 | |
| 357 | static int as3722_i2c_probe(struct i2c_client *i2c, |
| 358 | const struct i2c_device_id *id) |
| 359 | { |
| 360 | struct as3722 *as3722; |
| 361 | unsigned long irq_flags; |
| 362 | int ret; |
| 363 | |
| 364 | as3722 = devm_kzalloc(&i2c->dev, sizeof(struct as3722), GFP_KERNEL); |
| 365 | if (!as3722) |
| 366 | return -ENOMEM; |
| 367 | |
| 368 | as3722->dev = &i2c->dev; |
| 369 | as3722->chip_irq = i2c->irq; |
| 370 | i2c_set_clientdata(i2c, as3722); |
| 371 | |
| 372 | ret = as3722_i2c_of_probe(i2c, as3722); |
| 373 | if (ret < 0) |
| 374 | return ret; |
| 375 | |
| 376 | as3722->regmap = devm_regmap_init_i2c(i2c, &as3722_regmap_config); |
| 377 | if (IS_ERR(as3722->regmap)) { |
| 378 | ret = PTR_ERR(as3722->regmap); |
| 379 | dev_err(&i2c->dev, "regmap init failed: %d\n", ret); |
| 380 | return ret; |
| 381 | } |
| 382 | |
| 383 | ret = as3722_check_device_id(as3722); |
| 384 | if (ret < 0) |
| 385 | return ret; |
| 386 | |
| 387 | irq_flags = as3722->irq_flags | IRQF_ONESHOT; |
| 388 | ret = devm_regmap_add_irq_chip(as3722->dev, as3722->regmap, |
| 389 | as3722->chip_irq, |
| 390 | irq_flags, -1, &as3722_irq_chip, |
| 391 | &as3722->irq_data); |
| 392 | if (ret < 0) { |
| 393 | dev_err(as3722->dev, "Failed to add regmap irq: %d\n", ret); |
| 394 | return ret; |
| 395 | } |
| 396 | |
| 397 | ret = as3722_configure_pullups(as3722); |
| 398 | if (ret < 0) |
| 399 | return ret; |
| 400 | |
| 401 | ret = devm_mfd_add_devices(&i2c->dev, -1, as3722_devs, |
| 402 | ARRAY_SIZE(as3722_devs), NULL, 0, |
| 403 | regmap_irq_get_domain(as3722->irq_data)); |
| 404 | if (ret) { |
| 405 | dev_err(as3722->dev, "Failed to add MFD devices: %d\n", ret); |
| 406 | return ret; |
| 407 | } |
| 408 | |
| 409 | device_init_wakeup(as3722->dev, true); |
| 410 | |
| 411 | dev_dbg(as3722->dev, "AS3722 core driver initialized successfully\n"); |
| 412 | return 0; |
| 413 | } |
| 414 | |
| 415 | static int __maybe_unused as3722_i2c_suspend(struct device *dev) |
| 416 | { |
| 417 | struct as3722 *as3722 = dev_get_drvdata(dev); |
| 418 | |
| 419 | if (device_may_wakeup(dev)) |
| 420 | enable_irq_wake(as3722->chip_irq); |
| 421 | disable_irq(as3722->chip_irq); |
| 422 | |
| 423 | return 0; |
| 424 | } |
| 425 | |
| 426 | static int __maybe_unused as3722_i2c_resume(struct device *dev) |
| 427 | { |
| 428 | struct as3722 *as3722 = dev_get_drvdata(dev); |
| 429 | |
| 430 | enable_irq(as3722->chip_irq); |
| 431 | |
| 432 | if (device_may_wakeup(dev)) |
| 433 | disable_irq_wake(as3722->chip_irq); |
| 434 | |
| 435 | return 0; |
| 436 | } |
| 437 | |
| 438 | static const struct of_device_id as3722_of_match[] = { |
| 439 | { .compatible = "ams,as3722", }, |
| 440 | {}, |
| 441 | }; |
| 442 | MODULE_DEVICE_TABLE(of, as3722_of_match); |
| 443 | |
| 444 | static const struct i2c_device_id as3722_i2c_id[] = { |
| 445 | { "as3722", 0 }, |
| 446 | {}, |
| 447 | }; |
| 448 | MODULE_DEVICE_TABLE(i2c, as3722_i2c_id); |
| 449 | |
| 450 | static const struct dev_pm_ops as3722_pm_ops = { |
| 451 | SET_SYSTEM_SLEEP_PM_OPS(as3722_i2c_suspend, as3722_i2c_resume) |
| 452 | }; |
| 453 | |
| 454 | static struct i2c_driver as3722_i2c_driver = { |
| 455 | .driver = { |
| 456 | .name = "as3722", |
| 457 | .of_match_table = as3722_of_match, |
| 458 | .pm = &as3722_pm_ops, |
| 459 | }, |
| 460 | .probe = as3722_i2c_probe, |
| 461 | .id_table = as3722_i2c_id, |
| 462 | }; |
| 463 | |
| 464 | module_i2c_driver(as3722_i2c_driver); |
| 465 | |
| 466 | MODULE_DESCRIPTION("I2C support for AS3722 PMICs"); |
| 467 | MODULE_AUTHOR("Florian Lobmaier <florian.lobmaier@ams.com>"); |
| 468 | MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>"); |
| 469 | MODULE_LICENSE("GPL"); |