1/* 2 * Copyright (c) 2011 Samsung Electronics Co., Ltd. 3 * Authors: 4 * Inki Dae <inki.dae@samsung.com> 5 * Joonyoung Shim <jy0922.shim@samsung.com> 6 * Seung-Woo Kim <sw0312.kim@samsung.com> 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the 10 * Free Software Foundation; either version 2 of the License, or (at your 11 * option) any later version. 12 */ 13 14#include <linux/pm_runtime.h> 15#include <drm/drmP.h> 16#include <drm/drm_crtc_helper.h> 17 18#include <linux/component.h> 19 20#include <drm/exynos_drm.h> 21 22#include "exynos_drm_drv.h" 23#include "exynos_drm_crtc.h" 24#include "exynos_drm_encoder.h" 25#include "exynos_drm_fbdev.h" 26#include "exynos_drm_fb.h" 27#include "exynos_drm_gem.h" 28#include "exynos_drm_plane.h" 29#include "exynos_drm_vidi.h" 30#include "exynos_drm_dmabuf.h" 31#include "exynos_drm_g2d.h" 32#include "exynos_drm_ipp.h" 33#include "exynos_drm_iommu.h" 34 35#define DRIVER_NAME "exynos" 36#define DRIVER_DESC "Samsung SoC DRM" 37#define DRIVER_DATE "20110530" 38#define DRIVER_MAJOR 1 39#define DRIVER_MINOR 0 40 41static struct platform_device *exynos_drm_pdev; 42 43static DEFINE_MUTEX(drm_component_lock); 44static LIST_HEAD(drm_component_list); 45 46struct component_dev { 47 struct list_head list; 48 struct device *crtc_dev; 49 struct device *conn_dev; 50 enum exynos_drm_output_type out_type; 51 unsigned int dev_type_flag; 52}; 53 54static int exynos_drm_load(struct drm_device *dev, unsigned long flags) 55{ 56 struct exynos_drm_private *private; 57 int ret; 58 int nr; 59 60 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL); 61 if (!private) 62 return -ENOMEM; 63 64 INIT_LIST_HEAD(&private->pageflip_event_list); 65 dev_set_drvdata(dev->dev, dev); 66 dev->dev_private = (void *)private; 67 68 /* 69 * create mapping to manage iommu table and set a pointer to iommu 70 * mapping structure to iommu_mapping of private data. 71 * also this iommu_mapping can be used to check if iommu is supported 72 * or not. 73 */ 74 ret = drm_create_iommu_mapping(dev); 75 if (ret < 0) { 76 DRM_ERROR("failed to create iommu mapping.\n"); 77 goto err_free_private; 78 } 79 80 drm_mode_config_init(dev); 81 82 exynos_drm_mode_config_init(dev); 83 84 for (nr = 0; nr < MAX_PLANE; nr++) { 85 struct drm_plane *plane; 86 unsigned long possible_crtcs = (1 << MAX_CRTC) - 1; 87 88 plane = exynos_plane_init(dev, possible_crtcs, 89 DRM_PLANE_TYPE_OVERLAY); 90 if (!IS_ERR(plane)) 91 continue; 92 93 ret = PTR_ERR(plane); 94 goto err_mode_config_cleanup; 95 } 96 97 /* setup possible_clones. */ 98 exynos_drm_encoder_setup(dev); 99 100 platform_set_drvdata(dev->platformdev, dev); 101 102 /* Try to bind all sub drivers. */ 103 ret = component_bind_all(dev->dev, dev); 104 if (ret) 105 goto err_mode_config_cleanup; 106 107 ret = drm_vblank_init(dev, dev->mode_config.num_crtc); 108 if (ret) 109 goto err_unbind_all; 110 111 /* Probe non kms sub drivers and virtual display driver. */ 112 ret = exynos_drm_device_subdrv_probe(dev); 113 if (ret) 114 goto err_cleanup_vblank; 115 116 /* 117 * enable drm irq mode. 118 * - with irq_enabled = true, we can use the vblank feature. 119 * 120 * P.S. note that we wouldn't use drm irq handler but 121 * just specific driver own one instead because 122 * drm framework supports only one irq handler. 123 */ 124 dev->irq_enabled = true; 125 126 /* 127 * with vblank_disable_allowed = true, vblank interrupt will be disabled 128 * by drm timer once a current process gives up ownership of 129 * vblank event.(after drm_vblank_put function is called) 130 */ 131 dev->vblank_disable_allowed = true; 132 133 /* init kms poll for handling hpd */ 134 drm_kms_helper_poll_init(dev); 135 136 /* force connectors detection */ 137 drm_helper_hpd_irq_event(dev); 138 139 return 0; 140 141err_cleanup_vblank: 142 drm_vblank_cleanup(dev); 143err_unbind_all: 144 component_unbind_all(dev->dev, dev); 145err_mode_config_cleanup: 146 drm_mode_config_cleanup(dev); 147 drm_release_iommu_mapping(dev); 148err_free_private: 149 kfree(private); 150 151 return ret; 152} 153 154static int exynos_drm_unload(struct drm_device *dev) 155{ 156 exynos_drm_device_subdrv_remove(dev); 157 158 exynos_drm_fbdev_fini(dev); 159 drm_kms_helper_poll_fini(dev); 160 161 drm_vblank_cleanup(dev); 162 component_unbind_all(dev->dev, dev); 163 drm_mode_config_cleanup(dev); 164 drm_release_iommu_mapping(dev); 165 166 kfree(dev->dev_private); 167 dev->dev_private = NULL; 168 169 return 0; 170} 171 172static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state) 173{ 174 struct drm_connector *connector; 175 176 drm_modeset_lock_all(dev); 177 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 178 int old_dpms = connector->dpms; 179 180 if (connector->funcs->dpms) 181 connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF); 182 183 /* Set the old mode back to the connector for resume */ 184 connector->dpms = old_dpms; 185 } 186 drm_modeset_unlock_all(dev); 187 188 return 0; 189} 190 191static int exynos_drm_resume(struct drm_device *dev) 192{ 193 struct drm_connector *connector; 194 195 drm_modeset_lock_all(dev); 196 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 197 if (connector->funcs->dpms) { 198 int dpms = connector->dpms; 199 200 connector->dpms = DRM_MODE_DPMS_OFF; 201 connector->funcs->dpms(connector, dpms); 202 } 203 } 204 drm_modeset_unlock_all(dev); 205 206 drm_helper_resume_force_mode(dev); 207 208 return 0; 209} 210 211static int exynos_drm_open(struct drm_device *dev, struct drm_file *file) 212{ 213 struct drm_exynos_file_private *file_priv; 214 int ret; 215 216 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL); 217 if (!file_priv) 218 return -ENOMEM; 219 220 file->driver_priv = file_priv; 221 222 ret = exynos_drm_subdrv_open(dev, file); 223 if (ret) 224 goto err_file_priv_free; 225 226 return ret; 227 228err_file_priv_free: 229 kfree(file_priv); 230 file->driver_priv = NULL; 231 return ret; 232} 233 234static void exynos_drm_preclose(struct drm_device *dev, 235 struct drm_file *file) 236{ 237 exynos_drm_subdrv_close(dev, file); 238} 239 240static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file) 241{ 242 struct exynos_drm_private *private = dev->dev_private; 243 struct drm_pending_vblank_event *v, *vt; 244 struct drm_pending_event *e, *et; 245 unsigned long flags; 246 247 if (!file->driver_priv) 248 return; 249 250 /* Release all events not unhandled by page flip handler. */ 251 spin_lock_irqsave(&dev->event_lock, flags); 252 list_for_each_entry_safe(v, vt, &private->pageflip_event_list, 253 base.link) { 254 if (v->base.file_priv == file) { 255 list_del(&v->base.link); 256 drm_vblank_put(dev, v->pipe); 257 v->base.destroy(&v->base); 258 } 259 } 260 261 /* Release all events handled by page flip handler but not freed. */ 262 list_for_each_entry_safe(e, et, &file->event_list, link) { 263 list_del(&e->link); 264 e->destroy(e); 265 } 266 spin_unlock_irqrestore(&dev->event_lock, flags); 267 268 kfree(file->driver_priv); 269 file->driver_priv = NULL; 270} 271 272static void exynos_drm_lastclose(struct drm_device *dev) 273{ 274 exynos_drm_fbdev_restore_mode(dev); 275} 276 277static const struct vm_operations_struct exynos_drm_gem_vm_ops = { 278 .fault = exynos_drm_gem_fault, 279 .open = drm_gem_vm_open, 280 .close = drm_gem_vm_close, 281}; 282 283static const struct drm_ioctl_desc exynos_ioctls[] = { 284 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl, 285 DRM_UNLOCKED | DRM_AUTH), 286 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, 287 exynos_drm_gem_get_ioctl, DRM_UNLOCKED), 288 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, 289 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH), 290 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER, 291 exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH), 292 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST, 293 exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH), 294 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, 295 exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH), 296 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY, 297 exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH), 298 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY, 299 exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH), 300 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF, 301 exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH), 302 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL, 303 exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH), 304}; 305 306static const struct file_operations exynos_drm_driver_fops = { 307 .owner = THIS_MODULE, 308 .open = drm_open, 309 .mmap = exynos_drm_gem_mmap, 310 .poll = drm_poll, 311 .read = drm_read, 312 .unlocked_ioctl = drm_ioctl, 313#ifdef CONFIG_COMPAT 314 .compat_ioctl = drm_compat_ioctl, 315#endif 316 .release = drm_release, 317}; 318 319static struct drm_driver exynos_drm_driver = { 320 .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, 321 .load = exynos_drm_load, 322 .unload = exynos_drm_unload, 323 .suspend = exynos_drm_suspend, 324 .resume = exynos_drm_resume, 325 .open = exynos_drm_open, 326 .preclose = exynos_drm_preclose, 327 .lastclose = exynos_drm_lastclose, 328 .postclose = exynos_drm_postclose, 329 .set_busid = drm_platform_set_busid, 330 .get_vblank_counter = drm_vblank_count, 331 .enable_vblank = exynos_drm_crtc_enable_vblank, 332 .disable_vblank = exynos_drm_crtc_disable_vblank, 333 .gem_free_object = exynos_drm_gem_free_object, 334 .gem_vm_ops = &exynos_drm_gem_vm_ops, 335 .dumb_create = exynos_drm_gem_dumb_create, 336 .dumb_map_offset = exynos_drm_gem_dumb_map_offset, 337 .dumb_destroy = drm_gem_dumb_destroy, 338 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 339 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 340 .gem_prime_export = exynos_dmabuf_prime_export, 341 .gem_prime_import = exynos_dmabuf_prime_import, 342 .ioctls = exynos_ioctls, 343 .num_ioctls = ARRAY_SIZE(exynos_ioctls), 344 .fops = &exynos_drm_driver_fops, 345 .name = DRIVER_NAME, 346 .desc = DRIVER_DESC, 347 .date = DRIVER_DATE, 348 .major = DRIVER_MAJOR, 349 .minor = DRIVER_MINOR, 350}; 351 352#ifdef CONFIG_PM_SLEEP 353static int exynos_drm_sys_suspend(struct device *dev) 354{ 355 struct drm_device *drm_dev = dev_get_drvdata(dev); 356 pm_message_t message; 357 358 if (pm_runtime_suspended(dev) || !drm_dev) 359 return 0; 360 361 message.event = PM_EVENT_SUSPEND; 362 return exynos_drm_suspend(drm_dev, message); 363} 364 365static int exynos_drm_sys_resume(struct device *dev) 366{ 367 struct drm_device *drm_dev = dev_get_drvdata(dev); 368 369 if (pm_runtime_suspended(dev) || !drm_dev) 370 return 0; 371 372 return exynos_drm_resume(drm_dev); 373} 374#endif 375 376static const struct dev_pm_ops exynos_drm_pm_ops = { 377 SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume) 378}; 379 380int exynos_drm_component_add(struct device *dev, 381 enum exynos_drm_device_type dev_type, 382 enum exynos_drm_output_type out_type) 383{ 384 struct component_dev *cdev; 385 386 if (dev_type != EXYNOS_DEVICE_TYPE_CRTC && 387 dev_type != EXYNOS_DEVICE_TYPE_CONNECTOR) { 388 DRM_ERROR("invalid device type.\n"); 389 return -EINVAL; 390 } 391 392 mutex_lock(&drm_component_lock); 393 394 /* 395 * Make sure to check if there is a component which has two device 396 * objects, for connector and for encoder/connector. 397 * It should make sure that crtc and encoder/connector drivers are 398 * ready before exynos drm core binds them. 399 */ 400 list_for_each_entry(cdev, &drm_component_list, list) { 401 if (cdev->out_type == out_type) { 402 /* 403 * If crtc and encoder/connector device objects are 404 * added already just return. 405 */ 406 if (cdev->dev_type_flag == (EXYNOS_DEVICE_TYPE_CRTC | 407 EXYNOS_DEVICE_TYPE_CONNECTOR)) { 408 mutex_unlock(&drm_component_lock); 409 return 0; 410 } 411 412 if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) { 413 cdev->crtc_dev = dev; 414 cdev->dev_type_flag |= dev_type; 415 } 416 417 if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) { 418 cdev->conn_dev = dev; 419 cdev->dev_type_flag |= dev_type; 420 } 421 422 mutex_unlock(&drm_component_lock); 423 return 0; 424 } 425 } 426 427 mutex_unlock(&drm_component_lock); 428 429 cdev = kzalloc(sizeof(*cdev), GFP_KERNEL); 430 if (!cdev) 431 return -ENOMEM; 432 433 if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) 434 cdev->crtc_dev = dev; 435 if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) 436 cdev->conn_dev = dev; 437 438 cdev->out_type = out_type; 439 cdev->dev_type_flag = dev_type; 440 441 mutex_lock(&drm_component_lock); 442 list_add_tail(&cdev->list, &drm_component_list); 443 mutex_unlock(&drm_component_lock); 444 445 return 0; 446} 447 448void exynos_drm_component_del(struct device *dev, 449 enum exynos_drm_device_type dev_type) 450{ 451 struct component_dev *cdev, *next; 452 453 mutex_lock(&drm_component_lock); 454 455 list_for_each_entry_safe(cdev, next, &drm_component_list, list) { 456 if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) { 457 if (cdev->crtc_dev == dev) { 458 cdev->crtc_dev = NULL; 459 cdev->dev_type_flag &= ~dev_type; 460 } 461 } 462 463 if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) { 464 if (cdev->conn_dev == dev) { 465 cdev->conn_dev = NULL; 466 cdev->dev_type_flag &= ~dev_type; 467 } 468 } 469 470 /* 471 * Release cdev object only in case that both of crtc and 472 * encoder/connector device objects are NULL. 473 */ 474 if (!cdev->crtc_dev && !cdev->conn_dev) { 475 list_del(&cdev->list); 476 kfree(cdev); 477 } 478 479 break; 480 } 481 482 mutex_unlock(&drm_component_lock); 483} 484 485static int compare_dev(struct device *dev, void *data) 486{ 487 return dev == (struct device *)data; 488} 489 490static struct component_match *exynos_drm_match_add(struct device *dev) 491{ 492 struct component_match *match = NULL; 493 struct component_dev *cdev; 494 unsigned int attach_cnt = 0; 495 496 mutex_lock(&drm_component_lock); 497 498 /* Do not retry to probe if there is no any kms driver regitered. */ 499 if (list_empty(&drm_component_list)) { 500 mutex_unlock(&drm_component_lock); 501 return ERR_PTR(-ENODEV); 502 } 503 504 list_for_each_entry(cdev, &drm_component_list, list) { 505 /* 506 * Add components to master only in case that crtc and 507 * encoder/connector device objects exist. 508 */ 509 if (!cdev->crtc_dev || !cdev->conn_dev) 510 continue; 511 512 attach_cnt++; 513 514 mutex_unlock(&drm_component_lock); 515 516 /* 517 * fimd and dpi modules have same device object so add 518 * only crtc device object in this case. 519 */ 520 if (cdev->crtc_dev == cdev->conn_dev) { 521 component_match_add(dev, &match, compare_dev, 522 cdev->crtc_dev); 523 goto out_lock; 524 } 525 526 /* 527 * Do not chage below call order. 528 * crtc device first should be added to master because 529 * connector/encoder need pipe number of crtc when they 530 * are created. 531 */ 532 component_match_add(dev, &match, compare_dev, cdev->crtc_dev); 533 component_match_add(dev, &match, compare_dev, cdev->conn_dev); 534 535out_lock: 536 mutex_lock(&drm_component_lock); 537 } 538 539 mutex_unlock(&drm_component_lock); 540 541 return attach_cnt ? match : ERR_PTR(-EPROBE_DEFER); 542} 543 544static int exynos_drm_bind(struct device *dev) 545{ 546 return drm_platform_init(&exynos_drm_driver, to_platform_device(dev)); 547} 548 549static void exynos_drm_unbind(struct device *dev) 550{ 551 drm_put_dev(dev_get_drvdata(dev)); 552} 553 554static const struct component_master_ops exynos_drm_ops = { 555 .bind = exynos_drm_bind, 556 .unbind = exynos_drm_unbind, 557}; 558 559static int exynos_drm_platform_probe(struct platform_device *pdev) 560{ 561 struct component_match *match; 562 int ret; 563 564 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); 565 exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls); 566 567#ifdef CONFIG_DRM_EXYNOS_FIMD 568 ret = platform_driver_register(&fimd_driver); 569 if (ret < 0) 570 return ret; 571#endif 572 573#ifdef CONFIG_DRM_EXYNOS_DP 574 ret = platform_driver_register(&dp_driver); 575 if (ret < 0) 576 goto err_unregister_fimd_drv; 577#endif 578 579#ifdef CONFIG_DRM_EXYNOS_DSI 580 ret = platform_driver_register(&dsi_driver); 581 if (ret < 0) 582 goto err_unregister_dp_drv; 583#endif 584 585#ifdef CONFIG_DRM_EXYNOS_HDMI 586 ret = platform_driver_register(&mixer_driver); 587 if (ret < 0) 588 goto err_unregister_dsi_drv; 589 ret = platform_driver_register(&hdmi_driver); 590 if (ret < 0) 591 goto err_unregister_mixer_drv; 592#endif 593 594 match = exynos_drm_match_add(&pdev->dev); 595 if (IS_ERR(match)) { 596 ret = PTR_ERR(match); 597 goto err_unregister_hdmi_drv; 598 } 599 600 ret = component_master_add_with_match(&pdev->dev, &exynos_drm_ops, 601 match); 602 if (ret < 0) 603 goto err_unregister_hdmi_drv; 604 605#ifdef CONFIG_DRM_EXYNOS_G2D 606 ret = platform_driver_register(&g2d_driver); 607 if (ret < 0) 608 goto err_del_component_master; 609#endif 610 611#ifdef CONFIG_DRM_EXYNOS_FIMC 612 ret = platform_driver_register(&fimc_driver); 613 if (ret < 0) 614 goto err_unregister_g2d_drv; 615#endif 616 617#ifdef CONFIG_DRM_EXYNOS_ROTATOR 618 ret = platform_driver_register(&rotator_driver); 619 if (ret < 0) 620 goto err_unregister_fimc_drv; 621#endif 622 623#ifdef CONFIG_DRM_EXYNOS_GSC 624 ret = platform_driver_register(&gsc_driver); 625 if (ret < 0) 626 goto err_unregister_rotator_drv; 627#endif 628 629#ifdef CONFIG_DRM_EXYNOS_IPP 630 ret = platform_driver_register(&ipp_driver); 631 if (ret < 0) 632 goto err_unregister_gsc_drv; 633 634 ret = exynos_platform_device_ipp_register(); 635 if (ret < 0) 636 goto err_unregister_ipp_drv; 637#endif 638 639 return ret; 640 641#ifdef CONFIG_DRM_EXYNOS_IPP 642err_unregister_ipp_drv: 643 platform_driver_unregister(&ipp_driver); 644err_unregister_gsc_drv: 645#endif 646 647#ifdef CONFIG_DRM_EXYNOS_GSC 648 platform_driver_unregister(&gsc_driver); 649err_unregister_rotator_drv: 650#endif 651 652#ifdef CONFIG_DRM_EXYNOS_ROTATOR 653 platform_driver_unregister(&rotator_driver); 654err_unregister_fimc_drv: 655#endif 656 657#ifdef CONFIG_DRM_EXYNOS_FIMC 658 platform_driver_unregister(&fimc_driver); 659err_unregister_g2d_drv: 660#endif 661 662#ifdef CONFIG_DRM_EXYNOS_G2D 663 platform_driver_unregister(&g2d_driver); 664err_del_component_master: 665#endif 666 component_master_del(&pdev->dev, &exynos_drm_ops); 667 668err_unregister_hdmi_drv: 669#ifdef CONFIG_DRM_EXYNOS_HDMI 670 platform_driver_unregister(&hdmi_driver); 671err_unregister_mixer_drv: 672 platform_driver_unregister(&mixer_driver); 673err_unregister_dsi_drv: 674#endif 675 676#ifdef CONFIG_DRM_EXYNOS_DSI 677 platform_driver_unregister(&dsi_driver); 678err_unregister_dp_drv: 679#endif 680 681#ifdef CONFIG_DRM_EXYNOS_DP 682 platform_driver_unregister(&dp_driver); 683err_unregister_fimd_drv: 684#endif 685 686#ifdef CONFIG_DRM_EXYNOS_FIMD 687 platform_driver_unregister(&fimd_driver); 688#endif 689 return ret; 690} 691 692static int exynos_drm_platform_remove(struct platform_device *pdev) 693{ 694#ifdef CONFIG_DRM_EXYNOS_IPP 695 exynos_platform_device_ipp_unregister(); 696 platform_driver_unregister(&ipp_driver); 697#endif 698 699#ifdef CONFIG_DRM_EXYNOS_GSC 700 platform_driver_unregister(&gsc_driver); 701#endif 702 703#ifdef CONFIG_DRM_EXYNOS_ROTATOR 704 platform_driver_unregister(&rotator_driver); 705#endif 706 707#ifdef CONFIG_DRM_EXYNOS_FIMC 708 platform_driver_unregister(&fimc_driver); 709#endif 710 711#ifdef CONFIG_DRM_EXYNOS_G2D 712 platform_driver_unregister(&g2d_driver); 713#endif 714 715#ifdef CONFIG_DRM_EXYNOS_HDMI 716 platform_driver_unregister(&mixer_driver); 717 platform_driver_unregister(&hdmi_driver); 718#endif 719 720#ifdef CONFIG_DRM_EXYNOS_FIMD 721 platform_driver_unregister(&fimd_driver); 722#endif 723 724#ifdef CONFIG_DRM_EXYNOS_DSI 725 platform_driver_unregister(&dsi_driver); 726#endif 727 728#ifdef CONFIG_DRM_EXYNOS_DP 729 platform_driver_unregister(&dp_driver); 730#endif 731 component_master_del(&pdev->dev, &exynos_drm_ops); 732 return 0; 733} 734 735static struct platform_driver exynos_drm_platform_driver = { 736 .probe = exynos_drm_platform_probe, 737 .remove = exynos_drm_platform_remove, 738 .driver = { 739 .owner = THIS_MODULE, 740 .name = "exynos-drm", 741 .pm = &exynos_drm_pm_ops, 742 }, 743}; 744 745static int exynos_drm_init(void) 746{ 747 int ret; 748 749 /* 750 * Register device object only in case of Exynos SoC. 751 * 752 * Below codes resolves temporarily infinite loop issue incurred 753 * by Exynos drm driver when using multi-platform kernel. 754 * So these codes will be replaced with more generic way later. 755 */ 756 if (!of_machine_is_compatible("samsung,exynos3") && 757 !of_machine_is_compatible("samsung,exynos4") && 758 !of_machine_is_compatible("samsung,exynos5")) 759 return -ENODEV; 760 761 exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1, 762 NULL, 0); 763 if (IS_ERR(exynos_drm_pdev)) 764 return PTR_ERR(exynos_drm_pdev); 765 766#ifdef CONFIG_DRM_EXYNOS_VIDI 767 ret = exynos_drm_probe_vidi(); 768 if (ret < 0) 769 goto err_unregister_pd; 770#endif 771 772 ret = platform_driver_register(&exynos_drm_platform_driver); 773 if (ret) 774 goto err_remove_vidi; 775 776 return 0; 777 778err_remove_vidi: 779#ifdef CONFIG_DRM_EXYNOS_VIDI 780 exynos_drm_remove_vidi(); 781 782err_unregister_pd: 783#endif 784 platform_device_unregister(exynos_drm_pdev); 785 786 return ret; 787} 788 789static void exynos_drm_exit(void) 790{ 791 platform_driver_unregister(&exynos_drm_platform_driver); 792#ifdef CONFIG_DRM_EXYNOS_VIDI 793 exynos_drm_remove_vidi(); 794#endif 795 platform_device_unregister(exynos_drm_pdev); 796} 797 798module_init(exynos_drm_init); 799module_exit(exynos_drm_exit); 800 801MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); 802MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); 803MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>"); 804MODULE_DESCRIPTION("Samsung SoC DRM Driver"); 805MODULE_LICENSE("GPL"); 806