Hi Peter, I love your patch! Yet something to improve: [auto build test ERROR on v4.17-rc2] [also build test ERROR on next-20180426] [cannot apply to drm/drm-next robclark/msm-next drm-exynos/exynos-drm/for-next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Peter-Rosin/device-link-bridge-supplier-drm-device/20180428-135229 config: arm-allmodconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 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 make.cross ARCH=arm All errors (new ones prefixed by >>): drivers/gpu//drm/rockchip/rockchip_lvds.c: In function 'rockchip_lvds_bind': >> drivers/gpu//drm/rockchip/rockchip_lvds.c:381:24: error: 'struct drm_bridge' has no member named 'of_node' remote = lvds->bridge->of_node; ^~ vim +381 drivers/gpu//drm/rockchip/rockchip_lvds.c 34cc0aa25 Sandy Huang 2017-09-02 340 34cc0aa25 Sandy Huang 2017-09-02 341 static int rockchip_lvds_bind(struct device *dev, struct device *master, 34cc0aa25 Sandy Huang 2017-09-02 342 void *data) 34cc0aa25 Sandy Huang 2017-09-02 343 { 34cc0aa25 Sandy Huang 2017-09-02 344 struct rockchip_lvds *lvds = dev_get_drvdata(dev); 34cc0aa25 Sandy Huang 2017-09-02 345 struct drm_device *drm_dev = data; 34cc0aa25 Sandy Huang 2017-09-02 346 struct drm_encoder *encoder; 34cc0aa25 Sandy Huang 2017-09-02 347 struct drm_connector *connector; 34cc0aa25 Sandy Huang 2017-09-02 348 struct device_node *remote = NULL; 34cc0aa25 Sandy Huang 2017-09-02 349 struct device_node *port, *endpoint; 6bf2e0324 Sean Paul 2017-09-20 350 int ret = 0, child_count = 0; 34cc0aa25 Sandy Huang 2017-09-02 351 const char *name; 34cc0aa25 Sandy Huang 2017-09-02 352 u32 endpoint_id; 34cc0aa25 Sandy Huang 2017-09-02 353 34cc0aa25 Sandy Huang 2017-09-02 354 lvds->drm_dev = drm_dev; 34cc0aa25 Sandy Huang 2017-09-02 355 port = of_graph_get_port_by_id(dev->of_node, 1); 34cc0aa25 Sandy Huang 2017-09-02 356 if (!port) { 34cc0aa25 Sandy Huang 2017-09-02 357 DRM_DEV_ERROR(dev, 34cc0aa25 Sandy Huang 2017-09-02 358 "can't found port point, please init lvds panel port!\n"); 34cc0aa25 Sandy Huang 2017-09-02 359 return -EINVAL; 34cc0aa25 Sandy Huang 2017-09-02 360 } 34cc0aa25 Sandy Huang 2017-09-02 361 for_each_child_of_node(port, endpoint) { 6bf2e0324 Sean Paul 2017-09-20 362 child_count++; 34cc0aa25 Sandy Huang 2017-09-02 363 of_property_read_u32(endpoint, "reg", &endpoint_id); 34cc0aa25 Sandy Huang 2017-09-02 364 ret = drm_of_find_panel_or_bridge(dev->of_node, 1, endpoint_id, 34cc0aa25 Sandy Huang 2017-09-02 365 &lvds->panel, &lvds->bridge); 34cc0aa25 Sandy Huang 2017-09-02 366 if (!ret) 34cc0aa25 Sandy Huang 2017-09-02 367 break; 34cc0aa25 Sandy Huang 2017-09-02 368 } 6bf2e0324 Sean Paul 2017-09-20 369 if (!child_count) { 6bf2e0324 Sean Paul 2017-09-20 370 DRM_DEV_ERROR(dev, "lvds port does not have any children\n"); 6bf2e0324 Sean Paul 2017-09-20 371 ret = -EINVAL; 6bf2e0324 Sean Paul 2017-09-20 372 goto err_put_port; 6bf2e0324 Sean Paul 2017-09-20 373 } else if (ret) { 34cc0aa25 Sandy Huang 2017-09-02 374 DRM_DEV_ERROR(dev, "failed to find panel and bridge node\n"); 34cc0aa25 Sandy Huang 2017-09-02 375 ret = -EPROBE_DEFER; 34cc0aa25 Sandy Huang 2017-09-02 376 goto err_put_port; 34cc0aa25 Sandy Huang 2017-09-02 377 } 34cc0aa25 Sandy Huang 2017-09-02 378 if (lvds->panel) 34cc0aa25 Sandy Huang 2017-09-02 379 remote = lvds->panel->dev->of_node; 34cc0aa25 Sandy Huang 2017-09-02 380 else 34cc0aa25 Sandy Huang 2017-09-02 @381 remote = lvds->bridge->of_node; 34cc0aa25 Sandy Huang 2017-09-02 382 if (of_property_read_string(dev->of_node, "rockchip,output", &name)) 34cc0aa25 Sandy Huang 2017-09-02 383 /* default set it as output rgb */ 34cc0aa25 Sandy Huang 2017-09-02 384 lvds->output = DISPLAY_OUTPUT_RGB; 34cc0aa25 Sandy Huang 2017-09-02 385 else 34cc0aa25 Sandy Huang 2017-09-02 386 lvds->output = lvds_name_to_output(name); 34cc0aa25 Sandy Huang 2017-09-02 387 34cc0aa25 Sandy Huang 2017-09-02 388 if (lvds->output < 0) { 34cc0aa25 Sandy Huang 2017-09-02 389 DRM_DEV_ERROR(dev, "invalid output type [%s]\n", name); 34cc0aa25 Sandy Huang 2017-09-02 390 ret = lvds->output; 34cc0aa25 Sandy Huang 2017-09-02 391 goto err_put_remote; 34cc0aa25 Sandy Huang 2017-09-02 392 } 34cc0aa25 Sandy Huang 2017-09-02 393 34cc0aa25 Sandy Huang 2017-09-02 394 if (of_property_read_string(remote, "data-mapping", &name)) 34cc0aa25 Sandy Huang 2017-09-02 395 /* default set it as format vesa 18 */ 34cc0aa25 Sandy Huang 2017-09-02 396 lvds->format = LVDS_VESA_18; 34cc0aa25 Sandy Huang 2017-09-02 397 else 34cc0aa25 Sandy Huang 2017-09-02 398 lvds->format = lvds_name_to_format(name); 34cc0aa25 Sandy Huang 2017-09-02 399 34cc0aa25 Sandy Huang 2017-09-02 400 if (lvds->format < 0) { 34cc0aa25 Sandy Huang 2017-09-02 401 DRM_DEV_ERROR(dev, "invalid data-mapping format [%s]\n", name); 34cc0aa25 Sandy Huang 2017-09-02 402 ret = lvds->format; 34cc0aa25 Sandy Huang 2017-09-02 403 goto err_put_remote; 34cc0aa25 Sandy Huang 2017-09-02 404 } 34cc0aa25 Sandy Huang 2017-09-02 405 34cc0aa25 Sandy Huang 2017-09-02 406 encoder = &lvds->encoder; 34cc0aa25 Sandy Huang 2017-09-02 407 encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev, 34cc0aa25 Sandy Huang 2017-09-02 408 dev->of_node); 34cc0aa25 Sandy Huang 2017-09-02 409 34cc0aa25 Sandy Huang 2017-09-02 410 ret = drm_encoder_init(drm_dev, encoder, &rockchip_lvds_encoder_funcs, 34cc0aa25 Sandy Huang 2017-09-02 411 DRM_MODE_ENCODER_LVDS, NULL); 34cc0aa25 Sandy Huang 2017-09-02 412 if (ret < 0) { 34cc0aa25 Sandy Huang 2017-09-02 413 DRM_DEV_ERROR(drm_dev->dev, 34cc0aa25 Sandy Huang 2017-09-02 414 "failed to initialize encoder: %d\n", ret); 34cc0aa25 Sandy Huang 2017-09-02 415 goto err_put_remote; 34cc0aa25 Sandy Huang 2017-09-02 416 } 34cc0aa25 Sandy Huang 2017-09-02 417 34cc0aa25 Sandy Huang 2017-09-02 418 drm_encoder_helper_add(encoder, &rockchip_lvds_encoder_helper_funcs); 34cc0aa25 Sandy Huang 2017-09-02 419 34cc0aa25 Sandy Huang 2017-09-02 420 if (lvds->panel) { 34cc0aa25 Sandy Huang 2017-09-02 421 connector = &lvds->connector; 34cc0aa25 Sandy Huang 2017-09-02 422 connector->dpms = DRM_MODE_DPMS_OFF; 34cc0aa25 Sandy Huang 2017-09-02 423 ret = drm_connector_init(drm_dev, connector, 34cc0aa25 Sandy Huang 2017-09-02 424 &rockchip_lvds_connector_funcs, 34cc0aa25 Sandy Huang 2017-09-02 425 DRM_MODE_CONNECTOR_LVDS); 34cc0aa25 Sandy Huang 2017-09-02 426 if (ret < 0) { 34cc0aa25 Sandy Huang 2017-09-02 427 DRM_DEV_ERROR(drm_dev->dev, 34cc0aa25 Sandy Huang 2017-09-02 428 "failed to initialize connector: %d\n", ret); 34cc0aa25 Sandy Huang 2017-09-02 429 goto err_free_encoder; 34cc0aa25 Sandy Huang 2017-09-02 430 } 34cc0aa25 Sandy Huang 2017-09-02 431 34cc0aa25 Sandy Huang 2017-09-02 432 drm_connector_helper_add(connector, 34cc0aa25 Sandy Huang 2017-09-02 433 &rockchip_lvds_connector_helper_funcs); 34cc0aa25 Sandy Huang 2017-09-02 434 34cc0aa25 Sandy Huang 2017-09-02 435 ret = drm_mode_connector_attach_encoder(connector, encoder); 34cc0aa25 Sandy Huang 2017-09-02 436 if (ret < 0) { 34cc0aa25 Sandy Huang 2017-09-02 437 DRM_DEV_ERROR(drm_dev->dev, 34cc0aa25 Sandy Huang 2017-09-02 438 "failed to attach encoder: %d\n", ret); 34cc0aa25 Sandy Huang 2017-09-02 439 goto err_free_connector; 34cc0aa25 Sandy Huang 2017-09-02 440 } 34cc0aa25 Sandy Huang 2017-09-02 441 34cc0aa25 Sandy Huang 2017-09-02 442 ret = drm_panel_attach(lvds->panel, connector); 34cc0aa25 Sandy Huang 2017-09-02 443 if (ret < 0) { 34cc0aa25 Sandy Huang 2017-09-02 444 DRM_DEV_ERROR(drm_dev->dev, 34cc0aa25 Sandy Huang 2017-09-02 445 "failed to attach panel: %d\n", ret); 34cc0aa25 Sandy Huang 2017-09-02 446 goto err_free_connector; 34cc0aa25 Sandy Huang 2017-09-02 447 } 34cc0aa25 Sandy Huang 2017-09-02 448 } else { 34cc0aa25 Sandy Huang 2017-09-02 449 lvds->bridge->encoder = encoder; 34cc0aa25 Sandy Huang 2017-09-02 450 ret = drm_bridge_attach(encoder, lvds->bridge, NULL); 34cc0aa25 Sandy Huang 2017-09-02 451 if (ret) { 34cc0aa25 Sandy Huang 2017-09-02 452 DRM_DEV_ERROR(drm_dev->dev, 34cc0aa25 Sandy Huang 2017-09-02 453 "failed to attach bridge: %d\n", ret); 34cc0aa25 Sandy Huang 2017-09-02 454 goto err_free_encoder; 34cc0aa25 Sandy Huang 2017-09-02 455 } 34cc0aa25 Sandy Huang 2017-09-02 456 encoder->bridge = lvds->bridge; 34cc0aa25 Sandy Huang 2017-09-02 457 } 34cc0aa25 Sandy Huang 2017-09-02 458 34cc0aa25 Sandy Huang 2017-09-02 459 pm_runtime_enable(dev); 34cc0aa25 Sandy Huang 2017-09-02 460 of_node_put(remote); 34cc0aa25 Sandy Huang 2017-09-02 461 of_node_put(port); 34cc0aa25 Sandy Huang 2017-09-02 462 34cc0aa25 Sandy Huang 2017-09-02 463 return 0; 34cc0aa25 Sandy Huang 2017-09-02 464 34cc0aa25 Sandy Huang 2017-09-02 465 err_free_connector: 34cc0aa25 Sandy Huang 2017-09-02 466 drm_connector_cleanup(connector); 34cc0aa25 Sandy Huang 2017-09-02 467 err_free_encoder: 34cc0aa25 Sandy Huang 2017-09-02 468 drm_encoder_cleanup(encoder); 34cc0aa25 Sandy Huang 2017-09-02 469 err_put_remote: 34cc0aa25 Sandy Huang 2017-09-02 470 of_node_put(remote); 34cc0aa25 Sandy Huang 2017-09-02 471 err_put_port: 34cc0aa25 Sandy Huang 2017-09-02 472 of_node_put(port); 34cc0aa25 Sandy Huang 2017-09-02 473 34cc0aa25 Sandy Huang 2017-09-02 474 return ret; 34cc0aa25 Sandy Huang 2017-09-02 475 } 34cc0aa25 Sandy Huang 2017-09-02 476 :::::: The code at line 381 was first introduced by commit :::::: 34cc0aa2545603560c79aaea3340d8ff3a71bd10 drm/rockchip: Add support for Rockchip Soc LVDS :::::: TO: Sandy Huang <hjc@xxxxxxxxxxxxxx> :::::: CC: Mark Yao <mark.yao@xxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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