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 next-20200806] [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/dt-bindings-drm-bridge-Document-Cadence-MHDP-bridge-bindings/20200807-011620 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: mips-randconfig-r005-20200807 (attached as .config) compiler: mipsel-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=mips 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/bits.h:23, from include/linux/bitops.h:5, from include/linux/kernel.h:12, from include/linux/clk.h:13, from drivers/gpu/drm/bridge/cdns-mhdp-core.c:14: drivers/gpu/drm/bridge/cdns-mhdp-core.c: In function 'cdns_mhdp_link_training_init': include/linux/bits.h:26:28: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] 26 | __builtin_constant_p((l) > (h)), (l) > (h), 0))) | ^ include/linux/build_bug.h:16:62: note: in definition of macro 'BUILD_BUG_ON_ZERO' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/cdns-mhdp-core.h:116:35: note: in expansion of macro 'GENMASK' 116 | #define CDNS_DP_LANE_EN_LANES(x) GENMASK((x) - 1, 0) | ^~~~~~~ drivers/gpu/drm/bridge/cdns-mhdp-core.c:892:8: note: in expansion of macro 'CDNS_DP_LANE_EN_LANES' 892 | CDNS_DP_LANE_EN_LANES(mhdp->link.num_lanes)); | ^~~~~~~~~~~~~~~~~~~~~ include/linux/bits.h:26:40: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] 26 | __builtin_constant_p((l) > (h)), (l) > (h), 0))) | ^ include/linux/build_bug.h:16:62: note: in definition of macro 'BUILD_BUG_ON_ZERO' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/cdns-mhdp-core.h:116:35: note: in expansion of macro 'GENMASK' 116 | #define CDNS_DP_LANE_EN_LANES(x) GENMASK((x) - 1, 0) | ^~~~~~~ drivers/gpu/drm/bridge/cdns-mhdp-core.c:892:8: note: in expansion of macro 'CDNS_DP_LANE_EN_LANES' 892 | CDNS_DP_LANE_EN_LANES(mhdp->link.num_lanes)); | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/cdns-mhdp-core.c: In function 'cdns_mhdp_fill_host_caps': >> drivers/gpu/drm/bridge/cdns-mhdp-core.c:1382:2: error: implicit declaration of function 'phy_get_attrs' [-Werror=implicit-function-declaration] 1382 | phy_get_attrs(mhdp->phy, &attrs); | ^~~~~~~~~~~~~ >> drivers/gpu/drm/bridge/cdns-mhdp-core.c:1388:19: error: 'struct phy_attrs' has no member named 'max_link_rate' 1388 | link_rate = attrs.max_link_rate; | ^ cc1: some warnings being treated as errors vim +/phy_get_attrs +1382 drivers/gpu/drm/bridge/cdns-mhdp-core.c 1375 1376 static void cdns_mhdp_fill_host_caps(struct cdns_mhdp_device *mhdp) 1377 { 1378 unsigned int link_rate; 1379 struct phy_attrs attrs; 1380 1381 /* Get source capabilities based on PHY attributes */ > 1382 phy_get_attrs(mhdp->phy, &attrs); 1383 1384 mhdp->host.lanes_cnt = attrs.bus_width; 1385 if (!mhdp->host.lanes_cnt) 1386 mhdp->host.lanes_cnt = 4; 1387 > 1388 link_rate = attrs.max_link_rate; 1389 if (!link_rate) 1390 link_rate = drm_dp_bw_code_to_link_rate(DP_LINK_BW_8_1); 1391 else 1392 /* PHY uses Mb/s, DRM uses tens of kb/s. */ 1393 link_rate *= 100; 1394 1395 mhdp->host.link_rate = link_rate; 1396 mhdp->host.volt_swing = CDNS_VOLT_SWING(3); 1397 mhdp->host.pre_emphasis = CDNS_PRE_EMPHASIS(3); 1398 mhdp->host.pattern_supp = CDNS_SUPPORT_TPS(1) | 1399 CDNS_SUPPORT_TPS(2) | CDNS_SUPPORT_TPS(3) | 1400 CDNS_SUPPORT_TPS(4); 1401 mhdp->host.lane_mapping = CDNS_LANE_MAPPING_NORMAL; 1402 mhdp->host.fast_link = false; 1403 mhdp->host.enhanced = true; 1404 mhdp->host.scrambler = true; 1405 mhdp->host.ssc = false; 1406 } 1407 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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