Hi Svyatoslav, kernel test robot noticed the following build errors: [auto build test ERROR on krzk-dt/for-next] [also build test ERROR on linus/master v6.5-rc3 next-20230728] [cannot apply to sre-power-supply/for-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Svyatoslav-Ryhel/dt-bindings-power-supply-maxim-max17040-update-properties/20230731-012920 base: https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt.git for-next patch link: https://lore.kernel.org/r/20230730172648.71578-4-clamor95%40gmail.com patch subject: [PATCH v2 3/3] power: max17040: get thermal data from adc if available config: s390-randconfig-r044-20230731 (https://download.01.org/0day-ci/archive/20230731/202307310322.iEuhtMME-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230731/202307310322.iEuhtMME-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202307310322.iEuhtMME-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): s390x-linux-ld: drivers/power/supply/max17040_battery.o: in function `max17040_probe': >> drivers/power/supply/max17040_battery.c:483: undefined reference to `devm_iio_channel_get' s390x-linux-ld: drivers/power/supply/max17040_battery.o: in function `max17040_get_property': >> drivers/power/supply/max17040_battery.c:413: undefined reference to `iio_read_channel_processed_scale' vim +483 drivers/power/supply/max17040_battery.c 385 386 static int max17040_get_property(struct power_supply *psy, 387 enum power_supply_property psp, 388 union power_supply_propval *val) 389 { 390 struct max17040_chip *chip = power_supply_get_drvdata(psy); 391 392 switch (psp) { 393 case POWER_SUPPLY_PROP_ONLINE: 394 case POWER_SUPPLY_PROP_PRESENT: 395 val->intval = max17040_get_online(chip); 396 break; 397 case POWER_SUPPLY_PROP_VOLTAGE_NOW: 398 val->intval = max17040_get_vcell(chip); 399 break; 400 case POWER_SUPPLY_PROP_CAPACITY: 401 val->intval = max17040_get_soc(chip); 402 break; 403 case POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN: 404 val->intval = chip->low_soc_alert; 405 break; 406 case POWER_SUPPLY_PROP_STATUS: 407 power_supply_get_property_from_supplier(psy, psp, val); 408 break; 409 case POWER_SUPPLY_PROP_TEMP: 410 if (!chip->channel_temp) 411 return -ENODATA; 412 > 413 iio_read_channel_processed_scale(chip->channel_temp, 414 &val->intval, 10); 415 break; 416 default: 417 return -EINVAL; 418 } 419 return 0; 420 } 421 422 static const struct regmap_config max17040_regmap = { 423 .reg_bits = 8, 424 .reg_stride = 2, 425 .val_bits = 16, 426 .val_format_endian = REGMAP_ENDIAN_BIG, 427 }; 428 429 static enum power_supply_property max17040_battery_props[] = { 430 POWER_SUPPLY_PROP_ONLINE, 431 POWER_SUPPLY_PROP_PRESENT, 432 POWER_SUPPLY_PROP_VOLTAGE_NOW, 433 POWER_SUPPLY_PROP_CAPACITY, 434 POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN, 435 POWER_SUPPLY_PROP_STATUS, 436 POWER_SUPPLY_PROP_TEMP, 437 }; 438 439 static const struct power_supply_desc max17040_battery_desc = { 440 .name = "battery", 441 .type = POWER_SUPPLY_TYPE_BATTERY, 442 .get_property = max17040_get_property, 443 .set_property = max17040_set_property, 444 .property_is_writeable = max17040_prop_writeable, 445 .properties = max17040_battery_props, 446 .num_properties = ARRAY_SIZE(max17040_battery_props), 447 }; 448 449 static int max17040_probe(struct i2c_client *client) 450 { 451 const struct i2c_device_id *id = i2c_client_get_device_id(client); 452 struct i2c_adapter *adapter = client->adapter; 453 struct power_supply_config psy_cfg = {}; 454 struct max17040_chip *chip; 455 enum chip_id chip_id; 456 bool enable_irq = false; 457 int ret; 458 459 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE)) 460 return -EIO; 461 462 chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); 463 if (!chip) 464 return -ENOMEM; 465 466 chip->client = client; 467 chip->regmap = devm_regmap_init_i2c(client, &max17040_regmap); 468 if (IS_ERR(chip->regmap)) 469 return PTR_ERR(chip->regmap); 470 chip_id = (enum chip_id) id->driver_data; 471 if (client->dev.of_node) { 472 ret = max17040_get_of_data(chip); 473 if (ret) 474 return ret; 475 chip_id = (uintptr_t)of_device_get_match_data(&client->dev); 476 } 477 chip->data = max17040_family[chip_id]; 478 479 i2c_set_clientdata(client, chip); 480 psy_cfg.drv_data = chip; 481 482 /* Switch to devm_iio_channel_get_optional when available */ > 483 chip->channel_temp = devm_iio_channel_get(&client->dev, "temp"); 484 if (IS_ERR(chip->channel_temp)) { 485 ret = PTR_ERR(chip->channel_temp); 486 if (ret != -ENODEV) 487 return dev_err_probe(&client->dev, PTR_ERR(chip->channel_temp), 488 "failed to get temp\n"); 489 else 490 chip->channel_temp = NULL; 491 } 492 493 chip->battery = devm_power_supply_register(&client->dev, 494 &max17040_battery_desc, &psy_cfg); 495 if (IS_ERR(chip->battery)) { 496 dev_err(&client->dev, "failed: power supply register\n"); 497 return PTR_ERR(chip->battery); 498 } 499 500 ret = max17040_get_version(chip); 501 if (ret < 0) 502 return ret; 503 dev_dbg(&chip->client->dev, "MAX17040 Fuel-Gauge Ver 0x%x\n", ret); 504 505 if (chip_id == ID_MAX17040 || chip_id == ID_MAX17041) 506 max17040_reset(chip); 507 508 max17040_set_rcomp(chip, chip->rcomp); 509 510 /* check interrupt */ 511 if (client->irq && chip->data.has_low_soc_alert) { 512 ret = max17040_set_low_soc_alert(chip, chip->low_soc_alert); 513 if (ret) { 514 dev_err(&client->dev, 515 "Failed to set low SOC alert: err %d\n", ret); 516 return ret; 517 } 518 519 enable_irq = true; 520 } 521 522 if (client->irq && chip->data.has_soc_alert) { 523 ret = max17040_set_soc_alert(chip, 1); 524 if (ret) { 525 dev_err(&client->dev, 526 "Failed to set SOC alert: err %d\n", ret); 527 return ret; 528 } 529 enable_irq = true; 530 } else { 531 /* soc alerts negate the need for polling */ 532 INIT_DEFERRABLE_WORK(&chip->work, max17040_work); 533 ret = devm_add_action(&client->dev, max17040_stop_work, chip); 534 if (ret) 535 return ret; 536 max17040_queue_work(chip); 537 } 538 539 if (enable_irq) { 540 ret = max17040_enable_alert_irq(chip); 541 if (ret) { 542 client->irq = 0; 543 dev_warn(&client->dev, 544 "Failed to get IRQ err %d\n", ret); 545 } 546 } 547 548 return 0; 549 } 550 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki