Hi Dmitry, I love your patch! Perhaps something to improve: [auto build test WARNING on drm/drm-next] [also build test WARNING on robh/for-next linus/master v5.19-rc1 next-20220608] [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] url: https://github.com/intel-lab-lkp/linux/commits/Dmitry-Baryshkov/drm-msm-hdmi-YAML-ify-schema-and-cleanup-some-platform-properties/20220608-200925 base: git://anongit.freedesktop.org/drm/drm drm-next config: hexagon-randconfig-r045-20220608 (https://download.01.org/0day-ci/archive/20220608/202206082312.XB745jWy-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b92436efcb7813fc481b30f2593a4907568d917a) 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/c3e263fe0a077b382c2a76911c8ace385bd59a4c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Dmitry-Baryshkov/drm-msm-hdmi-YAML-ify-schema-and-cleanup-some-platform-properties/20220608-200925 git checkout c3e263fe0a077b382c2a76911c8ace385bd59a4c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/gpu/drm/msm/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/msm/hdmi/hdmi.c:532:2: warning: variable 'hdmi' is uninitialized when used here [-Wuninitialized] hdmi->hpd_gpiod = devm_gpiod_get_optional(dev, "hpd", GPIOD_IN); ^~~~ drivers/gpu/drm/msm/hdmi/hdmi.c:518:19: note: initialize the variable 'hdmi' to silence this warning struct hdmi *hdmi; ^ = NULL 1 warning generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for DRM_DP_AUX_BUS Depends on HAS_IOMEM && DRM && OF Selected by - DRM_MSM && HAS_IOMEM && DRM && (ARCH_QCOM || SOC_IMX5 || COMPILE_TEST && COMMON_CLK && IOMMU_SUPPORT && (QCOM_OCMEM || QCOM_OCMEM && (QCOM_LLCC || QCOM_LLCC && (QCOM_COMMAND_DB || QCOM_COMMAND_DB vim +/hdmi +532 drivers/gpu/drm/msm/hdmi/hdmi.c 513 514 static int msm_hdmi_bind(struct device *dev, struct device *master, void *data) 515 { 516 struct msm_drm_private *priv = dev_get_drvdata(master); 517 struct hdmi_platform_config *hdmi_cfg; 518 struct hdmi *hdmi; 519 struct device_node *of_node = dev->of_node; 520 int err; 521 522 hdmi_cfg = (struct hdmi_platform_config *) 523 of_device_get_match_data(dev); 524 if (!hdmi_cfg) { 525 DRM_DEV_ERROR(dev, "unknown hdmi_cfg: %pOFn\n", of_node); 526 return -ENXIO; 527 } 528 529 hdmi_cfg->mmio_name = "core_physical"; 530 hdmi_cfg->qfprom_mmio_name = "qfprom_physical"; 531 > 532 hdmi->hpd_gpiod = devm_gpiod_get_optional(dev, "hpd", GPIOD_IN); 533 /* This will catch e.g. -PROBE_DEFER */ 534 if (IS_ERR(hdmi->hpd_gpiod)) 535 return PTR_ERR(hdmi->hpd_gpiod); 536 537 if (!hdmi->hpd_gpiod) 538 DBG("failed to get HPD gpio"); 539 540 if (hdmi->hpd_gpiod) 541 gpiod_set_consumer_name(hdmi->hpd_gpiod, "HDMI_HPD"); 542 543 dev->platform_data = hdmi_cfg; 544 545 hdmi = msm_hdmi_init(to_platform_device(dev)); 546 if (IS_ERR(hdmi)) 547 return PTR_ERR(hdmi); 548 priv->hdmi = hdmi; 549 550 err = msm_hdmi_register_audio_driver(hdmi, dev); 551 if (err) { 552 DRM_ERROR("Failed to attach an audio codec %d\n", err); 553 hdmi->audio_pdev = NULL; 554 } 555 556 return 0; 557 } 558 -- 0-DAY CI Kernel Test Service https://01.org/lkp