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Message-ID: <92cbdf26-7205-40bb-8863-b35b6fabd32b@suswa.mountain>
Date: Sat, 28 Jun 2025 06:06:21 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: oe-kbuild@...ts.linux.dev,
Anjelique Melendez <anjelique.melendez@....qualcomm.com>,
andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
krzk+dt@...nel.org, conor+dt@...nel.org
Cc: lkp@...el.com, oe-kbuild-all@...ts.linux.dev,
dmitry.baryshkov@....qualcomm.com, linux-arm-msm@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] soc: qcom: pmic_glink: Add support for subsystem
restart (SSR)
Hi Anjelique,
kernel test robot noticed the following build warnings:
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Anjelique-Melendez/dt-bindings-soc-qcom-qcom-pmic-glink-Add-qcom-subsys-name-property/20250625-070209
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link: https://lore.kernel.org/r/20250624225535.2013141-3-anjelique.melendez%40oss.qualcomm.com
patch subject: [PATCH 2/2] soc: qcom: pmic_glink: Add support for subsystem restart (SSR)
config: x86_64-randconfig-161-20250627 (https://download.01.org/0day-ci/archive/20250628/202506280819.vRUvImej-lkp@intel.com/config)
compiler: clang version 20.1.7 (https://github.com/llvm/llvm-project 6146a88f60492b520a36f8f8f3231e15f3cc6082)
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@...el.com>
| Reported-by: Dan Carpenter <dan.carpenter@...aro.org>
| Closes: https://lore.kernel.org/r/202506280819.vRUvImej-lkp@intel.com/
smatch warnings:
drivers/soc/qcom/pmic_glink.c:360 pmic_glink_probe() warn: passing zero to 'PTR_ERR'
vim +/PTR_ERR +360 drivers/soc/qcom/pmic_glink.c
58ef4ece1e41ac Bjorn Andersson 2023-01-31 301 static int pmic_glink_probe(struct platform_device *pdev)
58ef4ece1e41ac Bjorn Andersson 2023-01-31 302 {
ff642773b6b5b8 Neil Armstrong 2023-03-21 303 const unsigned long *match_data;
56e992f9beb5f6 Anjelique Melendez 2025-06-24 304 const char *subsys_name = NULL;
58ef4ece1e41ac Bjorn Andersson 2023-01-31 305 struct pdr_service *service;
58ef4ece1e41ac Bjorn Andersson 2023-01-31 306 struct pmic_glink *pg;
58ef4ece1e41ac Bjorn Andersson 2023-01-31 307 int ret;
58ef4ece1e41ac Bjorn Andersson 2023-01-31 308
58ef4ece1e41ac Bjorn Andersson 2023-01-31 309 pg = devm_kzalloc(&pdev->dev, sizeof(*pg), GFP_KERNEL);
58ef4ece1e41ac Bjorn Andersson 2023-01-31 310 if (!pg)
58ef4ece1e41ac Bjorn Andersson 2023-01-31 311 return -ENOMEM;
58ef4ece1e41ac Bjorn Andersson 2023-01-31 312
58ef4ece1e41ac Bjorn Andersson 2023-01-31 313 dev_set_drvdata(&pdev->dev, pg);
58ef4ece1e41ac Bjorn Andersson 2023-01-31 314
58ef4ece1e41ac Bjorn Andersson 2023-01-31 315 pg->dev = &pdev->dev;
58ef4ece1e41ac Bjorn Andersson 2023-01-31 316
58ef4ece1e41ac Bjorn Andersson 2023-01-31 317 INIT_LIST_HEAD(&pg->clients);
9329933699b32d Bjorn Andersson 2024-04-30 318 spin_lock_init(&pg->client_lock);
58ef4ece1e41ac Bjorn Andersson 2023-01-31 319 mutex_init(&pg->state_lock);
58ef4ece1e41ac Bjorn Andersson 2023-01-31 320
ff642773b6b5b8 Neil Armstrong 2023-03-21 321 match_data = (unsigned long *)of_device_get_match_data(&pdev->dev);
4db09e7b967b90 Dmitry Baryshkov 2023-10-25 322 if (!match_data)
4db09e7b967b90 Dmitry Baryshkov 2023-10-25 323 return -EINVAL;
4db09e7b967b90 Dmitry Baryshkov 2023-10-25 324
ff642773b6b5b8 Neil Armstrong 2023-03-21 325 pg->client_mask = *match_data;
ff642773b6b5b8 Neil Armstrong 2023-03-21 326
f79ee78767ca60 Rob Clark 2024-02-17 327 pg->pdr = pdr_handle_alloc(pmic_glink_pdr_callback, pg);
f79ee78767ca60 Rob Clark 2024-02-17 328 if (IS_ERR(pg->pdr)) {
f79ee78767ca60 Rob Clark 2024-02-17 329 ret = dev_err_probe(&pdev->dev, PTR_ERR(pg->pdr),
f79ee78767ca60 Rob Clark 2024-02-17 330 "failed to initialize pdr\n");
f79ee78767ca60 Rob Clark 2024-02-17 331 return ret;
f79ee78767ca60 Rob Clark 2024-02-17 332 }
f79ee78767ca60 Rob Clark 2024-02-17 333
ff642773b6b5b8 Neil Armstrong 2023-03-21 334 if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_UCSI)) {
ff642773b6b5b8 Neil Armstrong 2023-03-21 335 ret = pmic_glink_add_aux_device(pg, &pg->ucsi_aux, "ucsi");
58ef4ece1e41ac Bjorn Andersson 2023-01-31 336 if (ret)
f79ee78767ca60 Rob Clark 2024-02-17 337 goto out_release_pdr_handle;
ff642773b6b5b8 Neil Armstrong 2023-03-21 338 }
ff642773b6b5b8 Neil Armstrong 2023-03-21 339 if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_ALTMODE)) {
ff642773b6b5b8 Neil Armstrong 2023-03-21 340 ret = pmic_glink_add_aux_device(pg, &pg->altmode_aux, "altmode");
ff642773b6b5b8 Neil Armstrong 2023-03-21 341 if (ret)
ff642773b6b5b8 Neil Armstrong 2023-03-21 342 goto out_release_ucsi_aux;
ff642773b6b5b8 Neil Armstrong 2023-03-21 343 }
ff642773b6b5b8 Neil Armstrong 2023-03-21 344 if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_BATT)) {
58ef4ece1e41ac Bjorn Andersson 2023-01-31 345 ret = pmic_glink_add_aux_device(pg, &pg->ps_aux, "power-supply");
58ef4ece1e41ac Bjorn Andersson 2023-01-31 346 if (ret)
58ef4ece1e41ac Bjorn Andersson 2023-01-31 347 goto out_release_altmode_aux;
ff642773b6b5b8 Neil Armstrong 2023-03-21 348 }
58ef4ece1e41ac Bjorn Andersson 2023-01-31 349
58ef4ece1e41ac Bjorn Andersson 2023-01-31 350 service = pdr_add_lookup(pg->pdr, "tms/servreg", "msm/adsp/charger_pd");
58ef4ece1e41ac Bjorn Andersson 2023-01-31 351 if (IS_ERR(service)) {
58ef4ece1e41ac Bjorn Andersson 2023-01-31 352 ret = dev_err_probe(&pdev->dev, PTR_ERR(service),
58ef4ece1e41ac Bjorn Andersson 2023-01-31 353 "failed adding pdr lookup for charger_pd\n");
f79ee78767ca60 Rob Clark 2024-02-17 354 goto out_release_aux_devices;
58ef4ece1e41ac Bjorn Andersson 2023-01-31 355 }
58ef4ece1e41ac Bjorn Andersson 2023-01-31 356
56e992f9beb5f6 Anjelique Melendez 2025-06-24 357 if (device_property_present(&pdev->dev, "qcom,subsys-name")) {
56e992f9beb5f6 Anjelique Melendez 2025-06-24 358 device_property_read_string(&pdev->dev, "qcom,subsys-name", &subsys_name);
56e992f9beb5f6 Anjelique Melendez 2025-06-24 359 if (!subsys_name) {
56e992f9beb5f6 Anjelique Melendez 2025-06-24 @360 ret = dev_err_probe(&pdev->dev, PTR_ERR(pg->ssr_handle),
s/PTR_ERR(pg->ssr_handle)/-EINVAL/;
56e992f9beb5f6 Anjelique Melendez 2025-06-24 361 "failed to read subsys_name string from dt\n");
56e992f9beb5f6 Anjelique Melendez 2025-06-24 362 goto out_release_aux_devices;
56e992f9beb5f6 Anjelique Melendez 2025-06-24 363 }
56e992f9beb5f6 Anjelique Melendez 2025-06-24 364 pg->ssr_nb.notifier_call = pmic_glink_ssr_callback;
56e992f9beb5f6 Anjelique Melendez 2025-06-24 365 pg->ssr_handle = qcom_register_ssr_notifier(subsys_name, &pg->ssr_nb);
56e992f9beb5f6 Anjelique Melendez 2025-06-24 366 if (IS_ERR(pg->ssr_handle)) {
56e992f9beb5f6 Anjelique Melendez 2025-06-24 367 ret = dev_err_probe(&pdev->dev, PTR_ERR(pg->ssr_handle),
56e992f9beb5f6 Anjelique Melendez 2025-06-24 368 "failed adding ssr notifier\n");
56e992f9beb5f6 Anjelique Melendez 2025-06-24 369 goto out_release_aux_devices;
56e992f9beb5f6 Anjelique Melendez 2025-06-24 370 }
56e992f9beb5f6 Anjelique Melendez 2025-06-24 371 }
56e992f9beb5f6 Anjelique Melendez 2025-06-24 372
58ef4ece1e41ac Bjorn Andersson 2023-01-31 373 mutex_lock(&__pmic_glink_lock);
58ef4ece1e41ac Bjorn Andersson 2023-01-31 374 __pmic_glink = pg;
58ef4ece1e41ac Bjorn Andersson 2023-01-31 375 mutex_unlock(&__pmic_glink_lock);
58ef4ece1e41ac Bjorn Andersson 2023-01-31 376
58ef4ece1e41ac Bjorn Andersson 2023-01-31 377 return 0;
58ef4ece1e41ac Bjorn Andersson 2023-01-31 378
58ef4ece1e41ac Bjorn Andersson 2023-01-31 379 out_release_aux_devices:
ff642773b6b5b8 Neil Armstrong 2023-03-21 380 if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_BATT))
58ef4ece1e41ac Bjorn Andersson 2023-01-31 381 pmic_glink_del_aux_device(pg, &pg->ps_aux);
58ef4ece1e41ac Bjorn Andersson 2023-01-31 382 out_release_altmode_aux:
ff642773b6b5b8 Neil Armstrong 2023-03-21 383 if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_ALTMODE))
58ef4ece1e41ac Bjorn Andersson 2023-01-31 384 pmic_glink_del_aux_device(pg, &pg->altmode_aux);
ff642773b6b5b8 Neil Armstrong 2023-03-21 385 out_release_ucsi_aux:
ff642773b6b5b8 Neil Armstrong 2023-03-21 386 if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_UCSI))
ff642773b6b5b8 Neil Armstrong 2023-03-21 387 pmic_glink_del_aux_device(pg, &pg->ucsi_aux);
f79ee78767ca60 Rob Clark 2024-02-17 388 out_release_pdr_handle:
f79ee78767ca60 Rob Clark 2024-02-17 389 pdr_handle_release(pg->pdr);
58ef4ece1e41ac Bjorn Andersson 2023-01-31 390
58ef4ece1e41ac Bjorn Andersson 2023-01-31 391 return ret;
58ef4ece1e41ac Bjorn Andersson 2023-01-31 392 }
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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