Hi Swapnil, Thank you for the patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on linus/master v5.8-rc6 next-20200722] [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/Swapnil-Jakhade/drm-Add-support-for-Cadence-MHDP-DPI-DP-bridge-and-J721E-wrapper/20200722-154322 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: x86_64-allyesconfig (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 3d9967039d4191b77f939ddc6c6ff4275df620c2) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # 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 error/warnings (new ones prefixed by >>): >> drivers/gpu/drm/bridge/cdns-mhdp-core.c:765:10: warning: implicit conversion from 'unsigned long' to 'unsigned int' changes value from 18446744073709551613 to 4294967293 [-Wconstant-conversion] writel(~CDNS_APB_INT_MASK_SW_EVENT_INT, ~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/gpu/drm/bridge/cdns-mhdp-core.c:1378:2: error: implicit declaration of function 'phy_get_attrs' [-Werror,-Wimplicit-function-declaration] phy_get_attrs(mhdp->phy, &attrs); ^ >> drivers/gpu/drm/bridge/cdns-mhdp-core.c:1384:20: error: no member named 'max_link_rate' in 'struct phy_attrs' link_rate = attrs.max_link_rate; ~~~~~ ^ drivers/gpu/drm/bridge/cdns-mhdp-core.c:1709:10: warning: implicit conversion from 'unsigned long' to 'unsigned int' changes value from 18446744073709551613 to 4294967293 [-Wconstant-conversion] writel(~CDNS_APB_INT_MASK_SW_EVENT_INT, ~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2 warnings and 2 errors generated. vim +/phy_get_attrs +1378 drivers/gpu/drm/bridge/cdns-mhdp-core.c 1371 1372 static void cdns_mhdp_fill_host_caps(struct cdns_mhdp_device *mhdp) 1373 { 1374 unsigned int link_rate; 1375 struct phy_attrs attrs; 1376 1377 /* Get source capabilities based on PHY attributes */ > 1378 phy_get_attrs(mhdp->phy, &attrs); 1379 1380 mhdp->host.lanes_cnt = attrs.bus_width; 1381 if (!mhdp->host.lanes_cnt) 1382 mhdp->host.lanes_cnt = 4; 1383 > 1384 link_rate = attrs.max_link_rate; 1385 if (!link_rate) 1386 link_rate = drm_dp_bw_code_to_link_rate(DP_LINK_BW_8_1); 1387 else 1388 /* PHY uses Mb/s, DRM uses tens of kb/s. */ 1389 link_rate *= 100; 1390 1391 mhdp->host.link_rate = link_rate; 1392 mhdp->host.volt_swing = CDNS_VOLT_SWING(3); 1393 mhdp->host.pre_emphasis = CDNS_PRE_EMPHASIS(3); 1394 mhdp->host.pattern_supp = CDNS_SUPPORT_TPS(1) | 1395 CDNS_SUPPORT_TPS(2) | CDNS_SUPPORT_TPS(3) | 1396 CDNS_SUPPORT_TPS(4); 1397 mhdp->host.lane_mapping = CDNS_LANE_MAPPING_NORMAL; 1398 mhdp->host.fast_link = false; 1399 mhdp->host.enhanced = true; 1400 mhdp->host.scrambler = true; 1401 mhdp->host.ssc = false; 1402 } 1403 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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