Hi Suraj, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip v6.13-rc3 next-20241220] [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/Suraj-Kandpal/drm-dp-Add-the-DPCD-register-required-for-Extended-wake-timeout/20241213-140525 base: linus/master patch link: https://lore.kernel.org/r/20241213060317.2674290-3-suraj.kandpal%40intel.com patch subject: [PATCH 2/2] drm/i915/lttpr: Enable Extended Wake Timeout config: x86_64-randconfig-r121-20241220 (https://download.01.org/0day-ci/archive/20241221/202412210956.FV7RWpOY-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241221/202412210956.FV7RWpOY-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/202412210956.FV7RWpOY-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/i915/display/intel_dp_link_training.c:146:26: sparse: sparse: Initializer entry defined twice drivers/gpu/drm/i915/display/intel_dp_link_training.c:148:26: sparse: also defined here vim +146 drivers/gpu/drm/i915/display/intel_dp_link_training.c 136 137 void intel_dp_lttpr_wake_timeout_setup(struct intel_dp *intel_dp) 138 { 139 struct intel_display *display = to_intel_display(intel_dp); 140 u8 val = 1; 141 int ret; 142 143 if (intel_dp_lttpr_transparent_mode_enabled(intel_dp)) { 144 static const u8 timeout_mapping[] = { 145 [DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_1_MS] = 1, > 146 [DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_20_MS] = 20, 147 [DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_40_MS] = 40, 148 [DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_20_MS] = 20, 149 [DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_80_MS] = 80, 150 [DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_100_MS] = 100, 151 }; 152 153 ret = drm_dp_dpcd_readb(&intel_dp->aux, 154 DP_EXTENDED_DPRX_SLEEP_WAKE_TIMEOUT_REQUEST, &val); 155 if (ret != 1) { 156 drm_dbg_kms(display->drm, 157 "Failed to read Extended sleep wake timeout request\n"); 158 return; 159 } 160 161 val = (val < sizeof(timeout_mapping) && timeout_mapping[val]) ? 162 timeout_mapping[val] : 1; 163 164 drm_dp_dpcd_writeb(&intel_dp->aux, DP_EXTENDED_DPRX_SLEEP_WAKE_TIMEOUT_GRANT, 165 DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_GRANTED); 166 } else { 167 ret = drm_dp_dpcd_readb(&intel_dp->aux, 168 DP_PHY_REPEATER_EXTENDED_WAIT_TIMEOUT, &val); 169 if (ret != 1) { 170 drm_dbg_kms(display->drm, 171 "Failed to read Extended sleep wake timeout request\n"); 172 return; 173 } 174 175 val = (val & DP_EXTENDED_WAKE_TIMEOUT_REQUEST_MASK) ? 176 (val & DP_EXTENDED_WAKE_TIMEOUT_REQUEST_MASK) * 10 : 1; 177 178 drm_dp_dpcd_writeb(&intel_dp->aux, DP_PHY_REPEATER_EXTENDED_WAIT_TIMEOUT, 179 DP_EXTENDED_WAKE_TIMEOUT_GRANT); 180 } 181 } 182 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
