Hi "Guido, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [cannot apply to v5.4-rc4 next-20191018] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Guido-G-nther/dt-bindings-display-bridge-Add-binding-for-NWL-mipi-dsi-host-controller/20191021-180825 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7d194c2100ad2a6dded545887d02754948ca5241 config: mips-allmodconfig (attached as .config) compiler: mips-linux-gcc (GCC) 7.4.0 reproduce: 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 GCC_VERSION=7.4.0 make.cross ARCH=mips If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/gpu/drm/bridge/nwl-dsi.c: In function 'nwl_dsi_host_attach': >> drivers/gpu/drm/bridge/nwl-dsi.c:384:12: error: too few arguments to function 'drm_panel_bridge_add' bridge = drm_panel_bridge_add(panel); ^~~~~~~~~~~~~~~~~~~~ In file included from include/drm/drm_crtc.h:44:0, from include/drm/drm_atomic_helper.h:31, from drivers/gpu/drm/bridge/nwl-dsi.c:24: include/drm/drm_bridge.h:432:20: note: declared here struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel, ^~~~~~~~~~~~~~~~~~~~ vim +/drm_panel_bridge_add +384 drivers/gpu/drm/bridge/nwl-dsi.c 358 359 static int nwl_dsi_host_attach(struct mipi_dsi_host *dsi_host, 360 struct mipi_dsi_device *device) 361 { 362 struct nwl_dsi *dsi = container_of(dsi_host, struct nwl_dsi, dsi_host); 363 struct device *dev = dsi->dev; 364 struct drm_bridge *bridge; 365 struct drm_panel *panel; 366 int ret; 367 368 DRM_DEV_INFO(dev, "lanes=%u, format=0x%x flags=0x%lx\n", device->lanes, 369 device->format, device->mode_flags); 370 371 if (device->lanes < 1 || device->lanes > 4) 372 return -EINVAL; 373 374 dsi->lanes = device->lanes; 375 dsi->format = device->format; 376 dsi->dsi_mode_flags = device->mode_flags; 377 378 ret = drm_of_find_panel_or_bridge(dsi->dev->of_node, 1, 0, &panel, 379 &bridge); 380 if (ret) 381 return ret; 382 383 if (panel) { > 384 bridge = drm_panel_bridge_add(panel); 385 if (IS_ERR(bridge)) 386 return PTR_ERR(bridge); 387 } 388 389 dsi->panel_bridge = bridge; 390 drm_bridge_add(&dsi->bridge); 391 392 return 0; 393 } 394 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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