Hi Binbin, Thank you for the patch! Yet something to improve: [auto build test ERROR on wsa/i2c/for-next] [also build test ERROR on linus/master v6.0-rc6 next-20220921] [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/Binbin-Zhou/i2c-ls2x-Add-support-for-the-Loongson-2K-LS7A-I2C/20220922-194252 base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next config: arc-randconfig-r043-20220922 (https://download.01.org/0day-ci/archive/20220923/202209230422.se6Sxqnq-lkp@xxxxxxxxx/config) compiler: arceb-elf-gcc (GCC) 12.1.0 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 # https://github.com/intel-lab-lkp/linux/commit/90590b2a30c8afa5bb200812ffa52a3c5bb9da6a git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Binbin-Zhou/i2c-ls2x-Add-support-for-the-Loongson-2K-LS7A-I2C/20220922-194252 git checkout 90590b2a30c8afa5bb200812ffa52a3c5bb9da6a # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/i2c/busses/i2c-gpio.c: In function 'i2c_gpio_probe': >> drivers/i2c/busses/i2c-gpio.c:472:26: error: implicit declaration of function 'acpi_evaluate_integer'; did you mean 'acpi_evaluate_object'? [-Werror=implicit-function-declaration] 472 | status = acpi_evaluate_integer(ACPI_HANDLE(dev), | ^~~~~~~~~~~~~~~~~~~~~ | acpi_evaluate_object cc1: some warnings being treated as errors vim +472 drivers/i2c/busses/i2c-gpio.c 375 376 static int i2c_gpio_probe(struct platform_device *pdev) 377 { 378 struct i2c_gpio_private_data *priv; 379 struct i2c_gpio_platform_data *pdata; 380 struct i2c_algo_bit_data *bit_data; 381 struct i2c_adapter *adap; 382 struct device *dev = &pdev->dev; 383 struct device_node *np = dev->of_node; 384 enum gpiod_flags gflags; 385 acpi_status status; 386 unsigned long long id; 387 int ret; 388 389 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 390 if (!priv) 391 return -ENOMEM; 392 393 adap = &priv->adap; 394 bit_data = &priv->bit_data; 395 pdata = &priv->pdata; 396 397 if (np) { 398 of_i2c_gpio_get_props(np, pdata); 399 } else if (ACPI_COMPANION(dev)) { 400 acpi_i2c_gpio_get_props(dev, pdata); 401 } else { 402 /* 403 * If all platform data settings are zero it is OK 404 * to not provide any platform data from the board. 405 */ 406 if (dev_get_platdata(dev)) 407 memcpy(pdata, dev_get_platdata(dev), sizeof(*pdata)); 408 } 409 410 /* 411 * First get the GPIO pins; if it fails, we'll defer the probe. 412 * If the SCL/SDA lines are marked "open drain" by platform data or 413 * device tree then this means that something outside of our control is 414 * marking these lines to be handled as open drain, and we should just 415 * handle them as we handle any other output. Else we enforce open 416 * drain as this is required for an I2C bus. 417 */ 418 if (pdata->sda_is_open_drain) 419 gflags = GPIOD_OUT_HIGH; 420 else 421 gflags = GPIOD_OUT_HIGH_OPEN_DRAIN; 422 priv->sda = i2c_gpio_get_desc(dev, "sda", 0, gflags); 423 if (IS_ERR(priv->sda)) 424 return PTR_ERR(priv->sda); 425 426 if (pdata->scl_is_open_drain) 427 gflags = GPIOD_OUT_HIGH; 428 else 429 gflags = GPIOD_OUT_HIGH_OPEN_DRAIN; 430 priv->scl = i2c_gpio_get_desc(dev, "scl", 1, gflags); 431 if (IS_ERR(priv->scl)) 432 return PTR_ERR(priv->scl); 433 434 if (gpiod_cansleep(priv->sda) || gpiod_cansleep(priv->scl)) 435 dev_warn(dev, "Slow GPIO pins might wreak havoc into I2C/SMBus bus timing"); 436 else 437 bit_data->can_do_atomic = true; 438 439 bit_data->setsda = i2c_gpio_setsda_val; 440 bit_data->setscl = i2c_gpio_setscl_val; 441 442 if (!pdata->scl_is_output_only) 443 bit_data->getscl = i2c_gpio_getscl; 444 bit_data->getsda = i2c_gpio_getsda; 445 446 if (pdata->udelay) 447 bit_data->udelay = pdata->udelay; 448 else if (pdata->scl_is_output_only) 449 bit_data->udelay = 50; /* 10 kHz */ 450 else 451 bit_data->udelay = 5; /* 100 kHz */ 452 453 if (pdata->timeout) 454 bit_data->timeout = pdata->timeout; 455 else 456 bit_data->timeout = HZ / 10; /* 100 ms */ 457 458 bit_data->data = priv; 459 460 adap->owner = THIS_MODULE; 461 if (np) 462 strscpy(adap->name, dev_name(dev), sizeof(adap->name)); 463 else 464 snprintf(adap->name, sizeof(adap->name), "i2c-gpio%d", pdev->id); 465 466 adap->algo_data = bit_data; 467 adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD; 468 adap->dev.parent = dev; 469 adap->dev.of_node = np; 470 471 if (ACPI_COMPANION(dev)) { > 472 status = acpi_evaluate_integer(ACPI_HANDLE(dev), 473 "_UID", NULL, &id); 474 if (ACPI_SUCCESS(status) && (id >= 0)) 475 adap->nr = id; 476 } else 477 adap->nr = pdev->id; 478 479 ret = i2c_bit_add_numbered_bus(adap); 480 if (ret) 481 return ret; 482 483 platform_set_drvdata(pdev, priv); 484 485 /* 486 * FIXME: using global GPIO numbers is not helpful. If/when we 487 * get accessors to get the actual name of the GPIO line, 488 * from the descriptor, then provide that instead. 489 */ 490 dev_info(dev, "using lines %u (SDA) and %u (SCL%s)\n", 491 desc_to_gpio(priv->sda), desc_to_gpio(priv->scl), 492 pdata->scl_is_output_only 493 ? ", no clock stretching" : ""); 494 495 i2c_gpio_fault_injector_init(pdev); 496 497 return 0; 498 } 499 -- 0-DAY CI Kernel Test Service https://01.org/lkp
