Hi Keerthy, url: https://github.com/intel-lab-lkp/linux/commits/Keerthy/thermal-k3_j72xx_bandgap-Add-the-bandgap-driver-support/20220427-144949 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm-randconfig-m031-20220501 (https://download.01.org/0day-ci/archive/20220503/202205030045.5GxgWkst-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 11.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> smatch warnings: drivers/thermal/k3_j72xx_bandgap.c:521 k3_j72xx_bandgap_probe() warn: possible memory leak of 'ref_table' vim +/ref_table +521 drivers/thermal/k3_j72xx_bandgap.c bb7f95a68cbaa1 Keerthy 2022-04-27 355 static int k3_j72xx_bandgap_probe(struct platform_device *pdev) bb7f95a68cbaa1 Keerthy 2022-04-27 356 { bb7f95a68cbaa1 Keerthy 2022-04-27 357 int ret = 0, cnt, val, id; bb7f95a68cbaa1 Keerthy 2022-04-27 358 int high_max, low_temp; bb7f95a68cbaa1 Keerthy 2022-04-27 359 struct resource *res; bb7f95a68cbaa1 Keerthy 2022-04-27 360 struct device *dev = &pdev->dev; bb7f95a68cbaa1 Keerthy 2022-04-27 361 struct k3_j72xx_bandgap *bgp; bb7f95a68cbaa1 Keerthy 2022-04-27 362 struct k3_thermal_data *data; bb7f95a68cbaa1 Keerthy 2022-04-27 363 int workaround_needed = 0; bb7f95a68cbaa1 Keerthy 2022-04-27 364 const struct k3_j72xx_bandgap_data *driver_data; bb7f95a68cbaa1 Keerthy 2022-04-27 365 struct thermal_zone_device *ti_thermal; bb7f95a68cbaa1 Keerthy 2022-04-27 366 int *ref_table; bb7f95a68cbaa1 Keerthy 2022-04-27 367 struct err_values err_vals; bb7f95a68cbaa1 Keerthy 2022-04-27 368 bb7f95a68cbaa1 Keerthy 2022-04-27 369 const s64 golden_factors[] = { bb7f95a68cbaa1 Keerthy 2022-04-27 370 -490019999999999936, bb7f95a68cbaa1 Keerthy 2022-04-27 371 3251200000000000, bb7f95a68cbaa1 Keerthy 2022-04-27 372 -1705800000000, bb7f95a68cbaa1 Keerthy 2022-04-27 373 603730000, bb7f95a68cbaa1 Keerthy 2022-04-27 374 -92627, bb7f95a68cbaa1 Keerthy 2022-04-27 375 }; bb7f95a68cbaa1 Keerthy 2022-04-27 376 bb7f95a68cbaa1 Keerthy 2022-04-27 377 const s64 pvt_wa_factors[] = { bb7f95a68cbaa1 Keerthy 2022-04-27 378 -415230000000000000, bb7f95a68cbaa1 Keerthy 2022-04-27 379 3126600000000000, bb7f95a68cbaa1 Keerthy 2022-04-27 380 -1157800000000, bb7f95a68cbaa1 Keerthy 2022-04-27 381 }; bb7f95a68cbaa1 Keerthy 2022-04-27 382 bb7f95a68cbaa1 Keerthy 2022-04-27 383 bgp = devm_kzalloc(&pdev->dev, sizeof(*bgp), GFP_KERNEL); bb7f95a68cbaa1 Keerthy 2022-04-27 384 if (!bgp) bb7f95a68cbaa1 Keerthy 2022-04-27 385 return -ENOMEM; bb7f95a68cbaa1 Keerthy 2022-04-27 386 bb7f95a68cbaa1 Keerthy 2022-04-27 387 bgp->dev = dev; bb7f95a68cbaa1 Keerthy 2022-04-27 388 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); bb7f95a68cbaa1 Keerthy 2022-04-27 389 bgp->base = devm_ioremap_resource(dev, res); bb7f95a68cbaa1 Keerthy 2022-04-27 390 if (IS_ERR(bgp->base)) bb7f95a68cbaa1 Keerthy 2022-04-27 391 return PTR_ERR(bgp->base); bb7f95a68cbaa1 Keerthy 2022-04-27 392 bb7f95a68cbaa1 Keerthy 2022-04-27 393 res = platform_get_resource(pdev, IORESOURCE_MEM, 1); bb7f95a68cbaa1 Keerthy 2022-04-27 394 bgp->cfg2_base = devm_ioremap_resource(dev, res); bb7f95a68cbaa1 Keerthy 2022-04-27 395 if (IS_ERR(bgp->cfg2_base)) bb7f95a68cbaa1 Keerthy 2022-04-27 396 return PTR_ERR(bgp->cfg2_base); bb7f95a68cbaa1 Keerthy 2022-04-27 397 bb7f95a68cbaa1 Keerthy 2022-04-27 398 res = platform_get_resource(pdev, IORESOURCE_MEM, 2); bb7f95a68cbaa1 Keerthy 2022-04-27 399 bgp->fuse_base = devm_ioremap_resource(dev, res); bb7f95a68cbaa1 Keerthy 2022-04-27 400 if (IS_ERR(bgp->fuse_base)) bb7f95a68cbaa1 Keerthy 2022-04-27 401 return PTR_ERR(bgp->fuse_base); bb7f95a68cbaa1 Keerthy 2022-04-27 402 bb7f95a68cbaa1 Keerthy 2022-04-27 403 driver_data = of_device_get_match_data(dev); bb7f95a68cbaa1 Keerthy 2022-04-27 404 if (driver_data) bb7f95a68cbaa1 Keerthy 2022-04-27 405 workaround_needed = driver_data->has_errata_i2128; bb7f95a68cbaa1 Keerthy 2022-04-27 406 bb7f95a68cbaa1 Keerthy 2022-04-27 407 pm_runtime_enable(dev); bb7f95a68cbaa1 Keerthy 2022-04-27 408 ret = pm_runtime_get_sync(dev); bb7f95a68cbaa1 Keerthy 2022-04-27 409 if (ret < 0) { bb7f95a68cbaa1 Keerthy 2022-04-27 410 pm_runtime_put_noidle(dev); bb7f95a68cbaa1 Keerthy 2022-04-27 411 pm_runtime_disable(dev); bb7f95a68cbaa1 Keerthy 2022-04-27 412 return ret; bb7f95a68cbaa1 Keerthy 2022-04-27 413 } bb7f95a68cbaa1 Keerthy 2022-04-27 414 bb7f95a68cbaa1 Keerthy 2022-04-27 415 /* Get the sensor count in the VTM */ bb7f95a68cbaa1 Keerthy 2022-04-27 416 val = readl(bgp->base + K3_VTM_DEVINFO_PWR0_OFFSET); bb7f95a68cbaa1 Keerthy 2022-04-27 417 cnt = val & K3_VTM_DEVINFO_PWR0_TEMPSENS_CT_MASK; bb7f95a68cbaa1 Keerthy 2022-04-27 418 cnt >>= __ffs(K3_VTM_DEVINFO_PWR0_TEMPSENS_CT_MASK); bb7f95a68cbaa1 Keerthy 2022-04-27 419 bb7f95a68cbaa1 Keerthy 2022-04-27 420 data = devm_kcalloc(bgp->dev, cnt, sizeof(*data), GFP_KERNEL); bb7f95a68cbaa1 Keerthy 2022-04-27 421 if (!data) { bb7f95a68cbaa1 Keerthy 2022-04-27 422 ret = -ENOMEM; bb7f95a68cbaa1 Keerthy 2022-04-27 423 goto err_alloc; bb7f95a68cbaa1 Keerthy 2022-04-27 424 } bb7f95a68cbaa1 Keerthy 2022-04-27 425 bb7f95a68cbaa1 Keerthy 2022-04-27 426 ref_table = kzalloc(sizeof(*ref_table) * TABLE_SIZE, GFP_KERNEL); bb7f95a68cbaa1 Keerthy 2022-04-27 427 if (!ref_table) { bb7f95a68cbaa1 Keerthy 2022-04-27 428 ret = -ENOMEM; bb7f95a68cbaa1 Keerthy 2022-04-27 429 goto err_alloc; bb7f95a68cbaa1 Keerthy 2022-04-27 430 } bb7f95a68cbaa1 Keerthy 2022-04-27 431 bb7f95a68cbaa1 Keerthy 2022-04-27 432 derived_table = devm_kzalloc(bgp->dev, sizeof(*derived_table) * TABLE_SIZE, bb7f95a68cbaa1 Keerthy 2022-04-27 433 GFP_KERNEL); bb7f95a68cbaa1 Keerthy 2022-04-27 434 if (!derived_table) { bb7f95a68cbaa1 Keerthy 2022-04-27 435 ret = -ENOMEM; bb7f95a68cbaa1 Keerthy 2022-04-27 436 goto err_alloc; ref_table is not freed on error. bb7f95a68cbaa1 Keerthy 2022-04-27 437 } bb7f95a68cbaa1 Keerthy 2022-04-27 438 bb7f95a68cbaa1 Keerthy 2022-04-27 439 /* Workaround not needed if bit30/bit31 is set even for J721e */ bb7f95a68cbaa1 Keerthy 2022-04-27 440 if (workaround_needed && (readl(bgp->fuse_base + 0x0) & 0xc0000000) == 0xc0000000) bb7f95a68cbaa1 Keerthy 2022-04-27 441 workaround_needed = false; bb7f95a68cbaa1 Keerthy 2022-04-27 442 bb7f95a68cbaa1 Keerthy 2022-04-27 443 dev_dbg(bgp->dev, "Work around %sneeded\n", bb7f95a68cbaa1 Keerthy 2022-04-27 444 workaround_needed ? "not " : ""); bb7f95a68cbaa1 Keerthy 2022-04-27 445 bb7f95a68cbaa1 Keerthy 2022-04-27 446 if (!workaround_needed) bb7f95a68cbaa1 Keerthy 2022-04-27 447 init_table(5, ref_table, golden_factors); bb7f95a68cbaa1 Keerthy 2022-04-27 448 else bb7f95a68cbaa1 Keerthy 2022-04-27 449 init_table(3, ref_table, pvt_wa_factors); bb7f95a68cbaa1 Keerthy 2022-04-27 450 bb7f95a68cbaa1 Keerthy 2022-04-27 451 /* Register the thermal sensors */ bb7f95a68cbaa1 Keerthy 2022-04-27 452 for (id = 0; id < cnt; id++) { bb7f95a68cbaa1 Keerthy 2022-04-27 453 data[id].bgp = bgp; bb7f95a68cbaa1 Keerthy 2022-04-27 454 data[id].ctrl_offset = K3_VTM_TMPSENS0_CTRL_OFFSET + id * 0x20; bb7f95a68cbaa1 Keerthy 2022-04-27 455 data[id].stat_offset = data[id].ctrl_offset + bb7f95a68cbaa1 Keerthy 2022-04-27 456 K3_VTM_TMPSENS_STAT_OFFSET; bb7f95a68cbaa1 Keerthy 2022-04-27 457 bb7f95a68cbaa1 Keerthy 2022-04-27 458 if (workaround_needed) { bb7f95a68cbaa1 Keerthy 2022-04-27 459 /* ref adc values for -40C, 30C & 125C respectively */ bb7f95a68cbaa1 Keerthy 2022-04-27 460 err_vals.refs[0] = MINUS40CREF; bb7f95a68cbaa1 Keerthy 2022-04-27 461 err_vals.refs[1] = PLUS30CREF; bb7f95a68cbaa1 Keerthy 2022-04-27 462 err_vals.refs[2] = PLUS125CREF; bb7f95a68cbaa1 Keerthy 2022-04-27 463 err_vals.refs[3] = PLUS150CREF; bb7f95a68cbaa1 Keerthy 2022-04-27 464 get_efuse_values(id, &data[id], err_vals.errs, bgp); bb7f95a68cbaa1 Keerthy 2022-04-27 465 } bb7f95a68cbaa1 Keerthy 2022-04-27 466 bb7f95a68cbaa1 Keerthy 2022-04-27 467 if (id == 0 && workaround_needed) bb7f95a68cbaa1 Keerthy 2022-04-27 468 prep_lookup_table(&err_vals, ref_table); bb7f95a68cbaa1 Keerthy 2022-04-27 469 else if (id == 0 && !workaround_needed) bb7f95a68cbaa1 Keerthy 2022-04-27 470 memcpy(derived_table, ref_table, TABLE_SIZE * 4); bb7f95a68cbaa1 Keerthy 2022-04-27 471 bb7f95a68cbaa1 Keerthy 2022-04-27 472 val = readl(data[id].bgp->cfg2_base + data[id].ctrl_offset); bb7f95a68cbaa1 Keerthy 2022-04-27 473 val |= (K3_VTM_TMPSENS_CTRL_MAXT_OUTRG_EN | bb7f95a68cbaa1 Keerthy 2022-04-27 474 K3_VTM_TMPSENS_CTRL_SOC | bb7f95a68cbaa1 Keerthy 2022-04-27 475 K3_VTM_TMPSENS_CTRL_CLRZ | BIT(4)); bb7f95a68cbaa1 Keerthy 2022-04-27 476 writel(val, data[id].bgp->cfg2_base + data[id].ctrl_offset); bb7f95a68cbaa1 Keerthy 2022-04-27 477 bb7f95a68cbaa1 Keerthy 2022-04-27 478 bgp->ts_data[id] = &data[id]; bb7f95a68cbaa1 Keerthy 2022-04-27 479 ti_thermal = bb7f95a68cbaa1 Keerthy 2022-04-27 480 devm_thermal_zone_of_sensor_register(bgp->dev, id, bb7f95a68cbaa1 Keerthy 2022-04-27 481 &data[id], bb7f95a68cbaa1 Keerthy 2022-04-27 482 &k3_of_thermal_ops); bb7f95a68cbaa1 Keerthy 2022-04-27 483 if (IS_ERR(ti_thermal)) { bb7f95a68cbaa1 Keerthy 2022-04-27 484 dev_err(bgp->dev, "thermal zone device is NULL\n"); bb7f95a68cbaa1 Keerthy 2022-04-27 485 ret = PTR_ERR(ti_thermal); bb7f95a68cbaa1 Keerthy 2022-04-27 486 goto err_alloc; bb7f95a68cbaa1 Keerthy 2022-04-27 487 } bb7f95a68cbaa1 Keerthy 2022-04-27 488 } bb7f95a68cbaa1 Keerthy 2022-04-27 489 bb7f95a68cbaa1 Keerthy 2022-04-27 490 /* bb7f95a68cbaa1 Keerthy 2022-04-27 491 * Program TSHUT thresholds bb7f95a68cbaa1 Keerthy 2022-04-27 492 * Step 1: set the thresholds to ~123C and 105C WKUP_VTM_MISC_CTRL2 bb7f95a68cbaa1 Keerthy 2022-04-27 493 * Step 2: WKUP_VTM_TMPSENS_CTRL_j set the MAXT_OUTRG_EN bit bb7f95a68cbaa1 Keerthy 2022-04-27 494 * This is already taken care as per of init bb7f95a68cbaa1 Keerthy 2022-04-27 495 * Step 3: WKUP_VTM_MISC_CTRL set the ANYMAXT_OUTRG_ALERT_EN bit bb7f95a68cbaa1 Keerthy 2022-04-27 496 */ bb7f95a68cbaa1 Keerthy 2022-04-27 497 high_max = k3_j72xx_bandgap_temp_to_adc_code(MAX_TEMP); bb7f95a68cbaa1 Keerthy 2022-04-27 498 low_temp = k3_j72xx_bandgap_temp_to_adc_code(COOL_DOWN_TEMP); bb7f95a68cbaa1 Keerthy 2022-04-27 499 bb7f95a68cbaa1 Keerthy 2022-04-27 500 writel((low_temp << 16) | high_max, data[0].bgp->cfg2_base + bb7f95a68cbaa1 Keerthy 2022-04-27 501 K3_VTM_MISC_CTRL2_OFFSET); bb7f95a68cbaa1 Keerthy 2022-04-27 502 mdelay(100); bb7f95a68cbaa1 Keerthy 2022-04-27 503 writel(K3_VTM_ANYMAXT_OUTRG_ALERT_EN, data[0].bgp->cfg2_base + bb7f95a68cbaa1 Keerthy 2022-04-27 504 K3_VTM_MISC_CTRL_OFFSET); bb7f95a68cbaa1 Keerthy 2022-04-27 505 bb7f95a68cbaa1 Keerthy 2022-04-27 506 platform_set_drvdata(pdev, bgp); bb7f95a68cbaa1 Keerthy 2022-04-27 507 bb7f95a68cbaa1 Keerthy 2022-04-27 508 print_look_up_table(dev, ref_table); bb7f95a68cbaa1 Keerthy 2022-04-27 509 /* bb7f95a68cbaa1 Keerthy 2022-04-27 510 * Now that the derived_table has the appropriate look up values bb7f95a68cbaa1 Keerthy 2022-04-27 511 * Free up the ref_table bb7f95a68cbaa1 Keerthy 2022-04-27 512 */ bb7f95a68cbaa1 Keerthy 2022-04-27 513 kfree(ref_table); bb7f95a68cbaa1 Keerthy 2022-04-27 514 bb7f95a68cbaa1 Keerthy 2022-04-27 515 return 0; bb7f95a68cbaa1 Keerthy 2022-04-27 516 bb7f95a68cbaa1 Keerthy 2022-04-27 517 err_alloc: bb7f95a68cbaa1 Keerthy 2022-04-27 518 pm_runtime_put_sync(&pdev->dev); bb7f95a68cbaa1 Keerthy 2022-04-27 519 pm_runtime_disable(&pdev->dev); bb7f95a68cbaa1 Keerthy 2022-04-27 520 bb7f95a68cbaa1 Keerthy 2022-04-27 @521 return ret; bb7f95a68cbaa1 Keerthy 2022-04-27 522 } -- 0-DAY CI Kernel Test Service https://01.org/lkp
