drivers/gpu/drm/exynos/exynos_drm_drv.c

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