tree: https://gitlab.freedesktop.org/drm/msm.git msm-next-staging head: 1a2896083ade8620d7e66ab1046c7efe744bcab4 commit: 1a2896083ade8620d7e66ab1046c7efe744bcab4 [32/32] drm/msm/dsi: add support for 7nm DSI PHY/PLL config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 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 git checkout 1a2896083ade8620d7e66ab1046c7efe744bcab4 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/gpu/drm/msm/dsi/pll/dsi_pll_7nm.c: In function 'msm_dsi_pll_7nm_init': 882 | pll->max_rate = 5000000000UL; | ^~~~~~~~~~~~ git remote add drm-msm https://gitlab.freedesktop.org/drm/msm.git git fetch --no-tags drm-msm msm-next-staging git checkout 1a2896083ade8620d7e66ab1046c7efe744bcab4 vim +882 drivers/gpu/drm/msm/dsi/pll/dsi_pll_7nm.c 846 847 struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev, int id) 848 { 849 struct dsi_pll_7nm *pll_7nm; 850 struct msm_dsi_pll *pll; 851 int ret; 852 853 pll_7nm = devm_kzalloc(&pdev->dev, sizeof(*pll_7nm), GFP_KERNEL); 854 if (!pll_7nm) 855 return ERR_PTR(-ENOMEM); 856 857 DBG("DSI PLL%d", id); 858 859 pll_7nm->pdev = pdev; 860 pll_7nm->id = id; 861 pll_7nm_list[id] = pll_7nm; 862 863 pll_7nm->phy_cmn_mmio = msm_ioremap(pdev, "dsi_phy", "DSI_PHY"); 864 if (IS_ERR_OR_NULL(pll_7nm->phy_cmn_mmio)) { 865 DRM_DEV_ERROR(&pdev->dev, "failed to map CMN PHY base\n"); 866 return ERR_PTR(-ENOMEM); 867 } 868 869 pll_7nm->mmio = msm_ioremap(pdev, "dsi_pll", "DSI_PLL"); 870 if (IS_ERR_OR_NULL(pll_7nm->mmio)) { 871 DRM_DEV_ERROR(&pdev->dev, "failed to map PLL base\n"); 872 return ERR_PTR(-ENOMEM); 873 } 874 875 spin_lock_init(&pll_7nm->postdiv_lock); 876 877 pll = &pll_7nm->base; 878 pll->min_rate = 1000000000UL; 879 pll->max_rate = 3500000000UL; 880 if (pll->type == MSM_DSI_PHY_7NM_V4_1) { 881 pll->min_rate = 600000000UL; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org