Hi Vandita, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip next-20210820] [cannot apply to v5.14-rc7] [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/0day-ci/linux/commits/Vandita-Kulkarni/Enable-mipi-dsi-on-XELPD/20210823-112313 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-randconfig-a015-20210822 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 79b55e5038324e61a3abf4e6a9a949c473edd858) 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/0day-ci/linux/commit/d75ce0657c5bed32b206ab0461ea42eea7514436 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Vandita-Kulkarni/Enable-mipi-dsi-on-XELPD/20210823-112313 git checkout d75ce0657c5bed32b206ab0461ea42eea7514436 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/gpu/drm/i915/display/icl_dsi.c:1290:27: error: use of undeclared identifier '_TGL_DSI_CHKN_REG_0' intel_de_rmw(dev_priv, TGL_DSI_CHKN_REG(port), ^ drivers/gpu/drm/i915/i915_reg.h:11619:11: note: expanded from macro 'TGL_DSI_CHKN_REG' _TGL_DSI_CHKN_REG_0, \ ^ drivers/gpu/drm/i915/display/icl_dsi.c:1290:27: error: use of undeclared identifier '_TGL_DSI_CHKN_REG_1' drivers/gpu/drm/i915/i915_reg.h:11620:11: note: expanded from macro 'TGL_DSI_CHKN_REG' _TGL_DSI_CHKN_REG_1) ^ drivers/gpu/drm/i915/display/icl_dsi.c:1290:27: error: use of undeclared identifier '_TGL_DSI_CHKN_REG_0' drivers/gpu/drm/i915/i915_reg.h:11619:11: note: expanded from macro 'TGL_DSI_CHKN_REG' _TGL_DSI_CHKN_REG_0, \ ^ >> drivers/gpu/drm/i915/display/icl_dsi.c:1289:3: warning: add explicit braces to avoid dangling else [-Wdangling-else] for_each_dsi_port(port, intel_dsi->ports) ^ drivers/gpu/drm/i915/display/intel_dsi.h:145:2: note: expanded from macro 'for_each_dsi_port' for_each_port_masked(__port, __ports_mask) ^ drivers/gpu/drm/i915/display/intel_display.h:374:3: note: expanded from macro 'for_each_port_masked' for_each_if((__ports_mask) & BIT(__port)) ^ include/drm/drm_util.h:63:53: note: expanded from macro 'for_each_if' #define for_each_if(condition) if (!(condition)) {} else ^ 1 warning and 3 errors generated. vim +1289 drivers/gpu/drm/i915/display/icl_dsi.c 1273 1274 /* 1275 * Wa_16012360555:ADLP 1276 * SW will have to program the "LP to HS Wakeup Guardband" 1277 * field (bits 15:12) of register offset 0x6B0C0 (DSI0) 1278 * and 0x6B8C0 (DSI1) to a value of 4 to account for the repeaters 1279 * on the HS Request/Ready PPI signaling between 1280 * the Display engine and the DPHY. 1281 */ 1282 static void adlp_set_lp_hs_wakeup_gb(struct intel_encoder *encoder) 1283 { 1284 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); 1285 struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); 1286 enum port port; 1287 1288 if (DISPLAY_VER(dev_priv) == 13) > 1289 for_each_dsi_port(port, intel_dsi->ports) 1290 intel_de_rmw(dev_priv, TGL_DSI_CHKN_REG(port), 1291 TGL_DSI_CHKN_LSHS_GB, 0x4); 1292 } 1293 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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