Hi Iskren, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on power-supply/for-next] [also build test WARNING on next-20200608] [cannot apply to v5.7] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Iskren-Chernev/dt-bindints-power-supply-Document-max17040-extensions/20200609-022950 base: https://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git for-next config: x86_64-allyesconfig (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project e429cffd4f228f70c1d9df0e5d77c08590dd9766) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>, old ones prefixed by <<): >> drivers/power/supply/max17040_battery.c:456:13: warning: cast to smaller integer type 'enum chip_id' from 'const void *' [-Wvoid-pointer-to-enum-cast] chip_id = (enum chip_id) of_device_get_match_data(&client->dev); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +456 drivers/power/supply/max17040_battery.c 430 431 static int max17040_probe(struct i2c_client *client, 432 const struct i2c_device_id *id) 433 { 434 struct i2c_adapter *adapter = client->adapter; 435 struct power_supply_config psy_cfg = {}; 436 struct max17040_chip *chip; 437 enum chip_id chip_id; 438 bool enable_irq = false; 439 int ret; 440 441 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE)) 442 return -EIO; 443 444 chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); 445 if (!chip) 446 return -ENOMEM; 447 448 chip->client = client; 449 chip->regmap = devm_regmap_init_i2c(client, &max17040_regmap); 450 chip->pdata = client->dev.platform_data; 451 chip_id = (enum chip_id) id->driver_data; 452 if (client->dev.of_node) { 453 ret = max17040_get_of_data(chip); 454 if (ret) 455 return ret; > 456 chip_id = (enum chip_id) of_device_get_match_data(&client->dev); 457 } 458 chip->data = max17040_family[chip_id]; 459 460 i2c_set_clientdata(client, chip); 461 psy_cfg.drv_data = chip; 462 463 chip->battery = devm_power_supply_register(&client->dev, 464 &max17040_battery_desc, &psy_cfg); 465 if (IS_ERR(chip->battery)) { 466 dev_err(&client->dev, "failed: power supply register\n"); 467 return PTR_ERR(chip->battery); 468 } 469 470 max17040_reset(chip); 471 max17040_get_version(chip); 472 max17040_set_rcomp(chip, chip->rcomp); 473 474 /* check interrupt */ 475 if (client->irq && chip->data.has_low_soc_alert) { 476 ret = max17040_set_low_soc_alert(chip, chip->low_soc_alert); 477 if (ret) { 478 dev_err(&client->dev, 479 "Failed to set low SOC alert: err %d\n", ret); 480 return ret; 481 } 482 enable_irq = true; 483 } 484 485 if (client->irq && chip->data.has_soc_alert) { 486 ret = max17040_set_soc_alert(chip, 1); 487 if (ret) { 488 dev_err(&client->dev, 489 "Failed to set SOC alert: err %d\n", ret); 490 return ret; 491 } 492 enable_irq = true; 493 } else { 494 /* soc alerts negate the need for polling */ 495 INIT_DEFERRABLE_WORK(&chip->work, max17040_work); 496 ret = devm_add_action(&client->dev, max17040_stop_work, chip); 497 if (ret) 498 return ret; 499 max17040_queue_work(chip); 500 } 501 502 if (enable_irq) { 503 ret = max17040_setup_irq(chip); 504 if (ret) { 505 client->irq = 0; 506 dev_warn(&client->dev, 507 "Failed to get IRQ err %d\n", ret); 508 } 509 } 510 511 return 0; 512 } 513 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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