Hi Alexander, kernel test robot noticed the following build warnings:
[auto build test WARNING on shawnguo/for-next] [also build test WARNING on linus/master v6.10-rc1 next-20240528] [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/Alexander-Stein/drm-bridge-imx93-mipi-dsi-Use-dev_err_probe/20240528-174332 base: https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git for-next patch link: https://lore.kernel.org/r/20240528093922.194684-1-alexander.stein%40ew.tq-group.com patch subject: [PATCH 1/1] drm/bridge: imx93-mipi-dsi: Use dev_err_probe config: arm-randconfig-001-20240528 (https://download.01.org/0day-ci/archive/20240528/[email protected]/config) compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240528/[email protected]/reproduce) 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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>): drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c: In function 'imx93_dsi_probe': >> drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c:837:13: warning: unused variable >> 'ret' [-Wunused-variable] 837 | int ret; | ^~~ vim +/ret +837 drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c ce62f8ea7e3f8a8 Liu Ying 2023-08-21 831 ce62f8ea7e3f8a8 Liu Ying 2023-08-21 832 static int imx93_dsi_probe(struct platform_device *pdev) ce62f8ea7e3f8a8 Liu Ying 2023-08-21 833 { ce62f8ea7e3f8a8 Liu Ying 2023-08-21 834 struct device *dev = &pdev->dev; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 835 struct device_node *np = dev->of_node; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 836 struct imx93_dsi *dsi; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 @837 int ret; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 838 ce62f8ea7e3f8a8 Liu Ying 2023-08-21 839 dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 840 if (!dsi) ce62f8ea7e3f8a8 Liu Ying 2023-08-21 841 return -ENOMEM; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 842 ce62f8ea7e3f8a8 Liu Ying 2023-08-21 843 dsi->regmap = syscon_regmap_lookup_by_phandle(np, "fsl,media-blk-ctrl"); b407e810c9a5b87 Alexander Stein 2024-05-28 844 if (IS_ERR(dsi->regmap)) b407e810c9a5b87 Alexander Stein 2024-05-28 845 return dev_err_probe(dev, PTR_ERR(dsi->regmap), b407e810c9a5b87 Alexander Stein 2024-05-28 846 "failed to get block ctrl regmap"); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 847 ce62f8ea7e3f8a8 Liu Ying 2023-08-21 848 dsi->clk_pixel = devm_clk_get(dev, "pix"); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 849 if (IS_ERR(dsi->clk_pixel)) ce62f8ea7e3f8a8 Liu Ying 2023-08-21 850 return dev_err_probe(dev, PTR_ERR(dsi->clk_pixel), ce62f8ea7e3f8a8 Liu Ying 2023-08-21 851 "failed to get pixel clock\n"); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 852 ce62f8ea7e3f8a8 Liu Ying 2023-08-21 853 dsi->clk_cfg = devm_clk_get(dev, "phy_cfg"); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 854 if (IS_ERR(dsi->clk_cfg)) ce62f8ea7e3f8a8 Liu Ying 2023-08-21 855 return dev_err_probe(dev, PTR_ERR(dsi->clk_cfg), ce62f8ea7e3f8a8 Liu Ying 2023-08-21 856 "failed to get phy cfg clock\n"); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 857 ce62f8ea7e3f8a8 Liu Ying 2023-08-21 858 dsi->clk_ref = devm_clk_get(dev, "phy_ref"); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 859 if (IS_ERR(dsi->clk_ref)) ce62f8ea7e3f8a8 Liu Ying 2023-08-21 860 return dev_err_probe(dev, PTR_ERR(dsi->clk_ref), ce62f8ea7e3f8a8 Liu Ying 2023-08-21 861 "failed to get phy ref clock\n"); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 862 ce62f8ea7e3f8a8 Liu Ying 2023-08-21 863 dsi->ref_clk_rate = clk_get_rate(dsi->clk_ref); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 864 if (dsi->ref_clk_rate < REF_CLK_RATE_MIN || ce62f8ea7e3f8a8 Liu Ying 2023-08-21 865 dsi->ref_clk_rate > REF_CLK_RATE_MAX) { ce62f8ea7e3f8a8 Liu Ying 2023-08-21 866 dev_err(dev, "invalid phy ref clock rate %lu\n", ce62f8ea7e3f8a8 Liu Ying 2023-08-21 867 dsi->ref_clk_rate); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 868 return -EINVAL; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 869 } ce62f8ea7e3f8a8 Liu Ying 2023-08-21 870 dev_dbg(dev, "phy ref clock rate: %lu\n", dsi->ref_clk_rate); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 871 ce62f8ea7e3f8a8 Liu Ying 2023-08-21 872 dsi->dev = dev; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 873 dsi->pdata.max_data_lanes = 4; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 874 dsi->pdata.mode_valid = imx93_dsi_mode_valid; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 875 dsi->pdata.mode_fixup = imx93_dsi_mode_fixup; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 876 dsi->pdata.get_input_bus_fmts = imx93_dsi_get_input_bus_fmts; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 877 dsi->pdata.phy_ops = &imx93_dsi_phy_ops; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 878 dsi->pdata.host_ops = &imx93_dsi_host_ops; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 879 dsi->pdata.priv_data = dsi; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 880 platform_set_drvdata(pdev, dsi); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 881 ce62f8ea7e3f8a8 Liu Ying 2023-08-21 882 dsi->dmd = dw_mipi_dsi_probe(pdev, &dsi->pdata); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 883 if (IS_ERR(dsi->dmd)) ce62f8ea7e3f8a8 Liu Ying 2023-08-21 884 return dev_err_probe(dev, PTR_ERR(dsi->dmd), ce62f8ea7e3f8a8 Liu Ying 2023-08-21 885 "failed to probe dw_mipi_dsi\n"); ce62f8ea7e3f8a8 Liu Ying 2023-08-21 886 ce62f8ea7e3f8a8 Liu Ying 2023-08-21 887 return 0; ce62f8ea7e3f8a8 Liu Ying 2023-08-21 888 } ce62f8ea7e3f8a8 Liu Ying 2023-08-21 889 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
