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 v5.9-rc3 next-20200828] [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-MHDP8546-DPI-DP-bridge-and-J721E-wrapper/20200831-162549 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from include/linux/err.h:5, from include/linux/clk.h:12, from drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c:22: include/linux/scatterlist.h: In function 'sg_set_buf': arch/m68k/include/asm/page_mm.h:169:49: warning: ordered comparison of pointer with null pointer [-Wextra] 169 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory) | ^~ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~ include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c: In function 'cdns_mhdp_fill_host_caps': >> drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c:1355:2: error: implicit declaration of function 'phy_get_attrs' [-Werror=implicit-function-declaration] 1355 | phy_get_attrs(mhdp->phy, &attrs); | ^~~~~~~~~~~~~ >> drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c:1361:19: error: 'struct phy_attrs' has no member named 'max_link_rate' 1361 | link_rate = attrs.max_link_rate; | ^ cc1: some warnings being treated as errors # https://github.com/0day-ci/linux/commit/f9a2fb8569e017b7eaba3a94afc9581179c2b62b git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Swapnil-Jakhade/drm-Add-support-for-Cadence-MHDP8546-DPI-DP-bridge-and-J721E-wrapper/20200831-162549 git checkout f9a2fb8569e017b7eaba3a94afc9581179c2b62b vim +/phy_get_attrs +1355 drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c 1348 1349 static void cdns_mhdp_fill_host_caps(struct cdns_mhdp_device *mhdp) 1350 { 1351 unsigned int link_rate; 1352 struct phy_attrs attrs; 1353 1354 /* Get source capabilities based on PHY attributes */ > 1355 phy_get_attrs(mhdp->phy, &attrs); 1356 1357 mhdp->host.lanes_cnt = attrs.bus_width; 1358 if (!mhdp->host.lanes_cnt) 1359 mhdp->host.lanes_cnt = 4; 1360 > 1361 link_rate = attrs.max_link_rate; 1362 if (!link_rate) 1363 link_rate = drm_dp_bw_code_to_link_rate(DP_LINK_BW_8_1); 1364 else 1365 /* PHY uses Mb/s, DRM uses tens of kb/s. */ 1366 link_rate *= 100; 1367 1368 mhdp->host.link_rate = link_rate; 1369 mhdp->host.volt_swing = CDNS_VOLT_SWING(3); 1370 mhdp->host.pre_emphasis = CDNS_PRE_EMPHASIS(3); 1371 mhdp->host.pattern_supp = CDNS_SUPPORT_TPS(1) | 1372 CDNS_SUPPORT_TPS(2) | CDNS_SUPPORT_TPS(3) | 1373 CDNS_SUPPORT_TPS(4); 1374 mhdp->host.lane_mapping = CDNS_LANE_MAPPING_NORMAL; 1375 mhdp->host.fast_link = false; 1376 mhdp->host.enhanced = true; 1377 mhdp->host.scrambler = true; 1378 mhdp->host.ssc = false; 1379 } 1380 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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