Hi William, kernel test robot noticed the following build errors: [auto build test ERROR on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/William-Tseng/drm-i915-dsi-let-HW-maintain-HS-TRAIL-and-CLK_POST/20230901-175307 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip patch link: https://lore.kernel.org/r/20230901095100.3771188-1-william.tseng%40intel.com patch subject: [PATCH] drm/i915/dsi: let HW maintain HS-TRAIL and CLK_POST config: i386-randconfig-002-20230901 (https://download.01.org/0day-ci/archive/20230901/202309012009.7IXuIGBJ-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230901/202309012009.7IXuIGBJ-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309012009.7IXuIGBJ-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/gpu/drm/i915/display/icl_dsi.c:1829:2: error: use of undeclared identifier 'tclk_trail_ns' tclk_trail_ns = max(mipi_config->tclk_trail, mipi_config->ths_trail); ^ 1 error generated. vim +/tclk_trail_ns +1829 drivers/gpu/drm/i915/display/icl_dsi.c 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1814 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1815 static void icl_dphy_param_init(struct intel_dsi *intel_dsi) 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1816 { 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1817 struct drm_device *dev = intel_dsi->base.base.dev; 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1818 struct drm_i915_private *dev_priv = to_i915(dev); 3cf050762534cc drivers/gpu/drm/i915/display/icl_dsi.c Ville Syrjälä 2022-05-10 1819 struct intel_connector *connector = intel_dsi->attached_connector; 3cf050762534cc drivers/gpu/drm/i915/display/icl_dsi.c Ville Syrjälä 2022-05-10 1820 struct mipi_config *mipi_config = connector->panel.vbt.dsi.config; 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1821 u32 tlpx_ns; 78ef7b0ec18ccb drivers/gpu/drm/i915/display/icl_dsi.c William Tseng 2023-09-01 1822 u32 prepare_cnt, exit_zero_cnt, clk_zero_cnt; 78ef7b0ec18ccb drivers/gpu/drm/i915/display/icl_dsi.c William Tseng 2023-09-01 1823 u32 ths_prepare_ns; 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1824 u32 hs_zero_cnt; 78ef7b0ec18ccb drivers/gpu/drm/i915/display/icl_dsi.c William Tseng 2023-09-01 1825 u32 tclk_pre_cnt; 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1826 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1827 tlpx_ns = intel_dsi_tlpx_ns(intel_dsi); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1828 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 @1829 tclk_trail_ns = max(mipi_config->tclk_trail, mipi_config->ths_trail); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1830 ths_prepare_ns = max(mipi_config->ths_prepare, 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1831 mipi_config->tclk_prepare); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1832 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1833 /* 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1834 * prepare cnt in escape clocks 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1835 * this field represents a hexadecimal value with a precision 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1836 * of 1.2 – i.e. the most significant bit is the integer 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1837 * and the least significant 2 bits are fraction bits. 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1838 * so, the field can represent a range of 0.25 to 1.75 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1839 */ 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1840 prepare_cnt = DIV_ROUND_UP(ths_prepare_ns * 4, tlpx_ns); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1841 if (prepare_cnt > ICL_PREPARE_CNT_MAX) { b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1842 drm_dbg_kms(&dev_priv->drm, "prepare_cnt out of range (%d)\n", b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1843 prepare_cnt); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1844 prepare_cnt = ICL_PREPARE_CNT_MAX; 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1845 } 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1846 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1847 /* clk zero count in escape clocks */ 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1848 clk_zero_cnt = DIV_ROUND_UP(mipi_config->tclk_prepare_clkzero - 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1849 ths_prepare_ns, tlpx_ns); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1850 if (clk_zero_cnt > ICL_CLK_ZERO_CNT_MAX) { b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1851 drm_dbg_kms(&dev_priv->drm, b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1852 "clk_zero_cnt out of range (%d)\n", clk_zero_cnt); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1853 clk_zero_cnt = ICL_CLK_ZERO_CNT_MAX; 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1854 } 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1855 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1856 /* tclk pre count in escape clocks */ 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1857 tclk_pre_cnt = DIV_ROUND_UP(mipi_config->tclk_pre, tlpx_ns); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1858 if (tclk_pre_cnt > ICL_TCLK_PRE_CNT_MAX) { b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1859 drm_dbg_kms(&dev_priv->drm, b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1860 "tclk_pre_cnt out of range (%d)\n", tclk_pre_cnt); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1861 tclk_pre_cnt = ICL_TCLK_PRE_CNT_MAX; 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1862 } 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1863 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1864 /* hs zero cnt in escape clocks */ 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1865 hs_zero_cnt = DIV_ROUND_UP(mipi_config->ths_prepare_hszero - 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1866 ths_prepare_ns, tlpx_ns); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1867 if (hs_zero_cnt > ICL_HS_ZERO_CNT_MAX) { b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1868 drm_dbg_kms(&dev_priv->drm, "hs_zero_cnt out of range (%d)\n", b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1869 hs_zero_cnt); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1870 hs_zero_cnt = ICL_HS_ZERO_CNT_MAX; 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1871 } 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1872 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1873 /* hs exit zero cnt in escape clocks */ 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1874 exit_zero_cnt = DIV_ROUND_UP(mipi_config->ths_exit, tlpx_ns); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1875 if (exit_zero_cnt > ICL_EXIT_ZERO_CNT_MAX) { b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1876 drm_dbg_kms(&dev_priv->drm, b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1877 "exit_zero_cnt out of range (%d)\n", b5280cd0bd2d68 drivers/gpu/drm/i915/display/icl_dsi.c Wambui Karuga 2020-01-22 1878 exit_zero_cnt); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1879 exit_zero_cnt = ICL_EXIT_ZERO_CNT_MAX; 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1880 } 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1881 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1882 /* clock lane dphy timings */ 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1883 intel_dsi->dphy_reg = (CLK_PREPARE_OVERRIDE | 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1884 CLK_PREPARE(prepare_cnt) | 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1885 CLK_ZERO_OVERRIDE | 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1886 CLK_ZERO(clk_zero_cnt) | 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1887 CLK_PRE_OVERRIDE | 78ef7b0ec18ccb drivers/gpu/drm/i915/display/icl_dsi.c William Tseng 2023-09-01 1888 CLK_PRE(tclk_pre_cnt)); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1889 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1890 /* data lanes dphy timings */ 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1891 intel_dsi->dphy_data_lane_reg = (HS_PREPARE_OVERRIDE | 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1892 HS_PREPARE(prepare_cnt) | 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1893 HS_ZERO_OVERRIDE | 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1894 HS_ZERO(hs_zero_cnt) | 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1895 HS_EXIT_OVERRIDE | 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1896 HS_EXIT(exit_zero_cnt)); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1897 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1898 intel_dsi_log_params(intel_dsi); 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1899 } 2def5ae7d7fb85 drivers/gpu/drm/i915/icl_dsi.c Hans de Goede 2019-06-05 1900 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
