Version:  2.0.40 2.2.26 2.4.37 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16

Linux/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/anon_inodes.h>
 19 #include <linux/component.h>
 20 
 21 #include <drm/exynos_drm.h>
 22 
 23 #include "exynos_drm_drv.h"
 24 #include "exynos_drm_crtc.h"
 25 #include "exynos_drm_encoder.h"
 26 #include "exynos_drm_fbdev.h"
 27 #include "exynos_drm_fb.h"
 28 #include "exynos_drm_gem.h"
 29 #include "exynos_drm_plane.h"
 30 #include "exynos_drm_vidi.h"
 31 #include "exynos_drm_dmabuf.h"
 32 #include "exynos_drm_g2d.h"
 33 #include "exynos_drm_ipp.h"
 34 #include "exynos_drm_iommu.h"
 35 
 36 #define DRIVER_NAME     "exynos"
 37 #define DRIVER_DESC     "Samsung SoC DRM"
 38 #define DRIVER_DATE     "20110530"
 39 #define DRIVER_MAJOR    1
 40 #define DRIVER_MINOR    0
 41 
 42 #define VBLANK_OFF_DELAY        50000
 43 
 44 static struct platform_device *exynos_drm_pdev;
 45 
 46 static DEFINE_MUTEX(drm_component_lock);
 47 static LIST_HEAD(drm_component_list);
 48 
 49 struct component_dev {
 50         struct list_head list;
 51         struct device *crtc_dev;
 52         struct device *conn_dev;
 53         enum exynos_drm_output_type out_type;
 54         unsigned int dev_type_flag;
 55 };
 56 
 57 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 58 {
 59         struct exynos_drm_private *private;
 60         int ret;
 61         int nr;
 62 
 63         private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
 64         if (!private)
 65                 return -ENOMEM;
 66 
 67         INIT_LIST_HEAD(&private->pageflip_event_list);
 68         dev_set_drvdata(dev->dev, dev);
 69         dev->dev_private = (void *)private;
 70 
 71         /*
 72          * create mapping to manage iommu table and set a pointer to iommu
 73          * mapping structure to iommu_mapping of private data.
 74          * also this iommu_mapping can be used to check if iommu is supported
 75          * or not.
 76          */
 77         ret = drm_create_iommu_mapping(dev);
 78         if (ret < 0) {
 79                 DRM_ERROR("failed to create iommu mapping.\n");
 80                 goto err_free_private;
 81         }
 82 
 83         drm_mode_config_init(dev);
 84 
 85         exynos_drm_mode_config_init(dev);
 86 
 87         for (nr = 0; nr < MAX_PLANE; nr++) {
 88                 struct drm_plane *plane;
 89                 unsigned long possible_crtcs = (1 << MAX_CRTC) - 1;
 90 
 91                 plane = exynos_plane_init(dev, possible_crtcs, false);
 92                 if (!plane)
 93                         goto err_mode_config_cleanup;
 94         }
 95 
 96         /* init kms poll for handling hpd */
 97         drm_kms_helper_poll_init(dev);
 98 
 99         ret = drm_vblank_init(dev, MAX_CRTC);
100         if (ret)
101                 goto err_mode_config_cleanup;
102 
103         /* setup possible_clones. */
104         exynos_drm_encoder_setup(dev);
105 
106         drm_vblank_offdelay = VBLANK_OFF_DELAY;
107 
108         platform_set_drvdata(dev->platformdev, dev);
109 
110         /* Try to bind all sub drivers. */
111         ret = component_bind_all(dev->dev, dev);
112         if (ret)
113                 goto err_cleanup_vblank;
114 
115         /* Probe non kms sub drivers and virtual display driver. */
116         ret = exynos_drm_device_subdrv_probe(dev);
117         if (ret)
118                 goto err_unbind_all;
119 
120         /* force connectors detection */
121         drm_helper_hpd_irq_event(dev);
122 
123         return 0;
124 
125 err_unbind_all:
126         component_unbind_all(dev->dev, dev);
127 err_cleanup_vblank:
128         drm_vblank_cleanup(dev);
129 err_mode_config_cleanup:
130         drm_mode_config_cleanup(dev);
131         drm_release_iommu_mapping(dev);
132 err_free_private:
133         kfree(private);
134 
135         return ret;
136 }
137 
138 static int exynos_drm_unload(struct drm_device *dev)
139 {
140         exynos_drm_device_subdrv_remove(dev);
141 
142         exynos_drm_fbdev_fini(dev);
143         drm_vblank_cleanup(dev);
144         drm_kms_helper_poll_fini(dev);
145         drm_mode_config_cleanup(dev);
146 
147         drm_release_iommu_mapping(dev);
148         kfree(dev->dev_private);
149 
150         component_unbind_all(dev->dev, dev);
151         dev->dev_private = NULL;
152 
153         return 0;
154 }
155 
156 static const struct file_operations exynos_drm_gem_fops = {
157         .mmap = exynos_drm_gem_mmap_buffer,
158 };
159 
160 static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state)
161 {
162         struct drm_connector *connector;
163 
164         drm_modeset_lock_all(dev);
165         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
166                 int old_dpms = connector->dpms;
167 
168                 if (connector->funcs->dpms)
169                         connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
170 
171                 /* Set the old mode back to the connector for resume */
172                 connector->dpms = old_dpms;
173         }
174         drm_modeset_unlock_all(dev);
175 
176         return 0;
177 }
178 
179 static int exynos_drm_resume(struct drm_device *dev)
180 {
181         struct drm_connector *connector;
182 
183         drm_modeset_lock_all(dev);
184         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
185                 if (connector->funcs->dpms)
186                         connector->funcs->dpms(connector, connector->dpms);
187         }
188         drm_modeset_unlock_all(dev);
189 
190         drm_helper_resume_force_mode(dev);
191 
192         return 0;
193 }
194 
195 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
196 {
197         struct drm_exynos_file_private *file_priv;
198         struct file *anon_filp;
199         int ret;
200 
201         file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
202         if (!file_priv)
203                 return -ENOMEM;
204 
205         file->driver_priv = file_priv;
206 
207         ret = exynos_drm_subdrv_open(dev, file);
208         if (ret)
209                 goto err_file_priv_free;
210 
211         anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops,
212                                         NULL, 0);
213         if (IS_ERR(anon_filp)) {
214                 ret = PTR_ERR(anon_filp);
215                 goto err_subdrv_close;
216         }
217 
218         anon_filp->f_mode = FMODE_READ | FMODE_WRITE;
219         file_priv->anon_filp = anon_filp;
220 
221         return ret;
222 
223 err_subdrv_close:
224         exynos_drm_subdrv_close(dev, file);
225 
226 err_file_priv_free:
227         kfree(file_priv);
228         file->driver_priv = NULL;
229         return ret;
230 }
231 
232 static void exynos_drm_preclose(struct drm_device *dev,
233                                         struct drm_file *file)
234 {
235         exynos_drm_subdrv_close(dev, file);
236 }
237 
238 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
239 {
240         struct exynos_drm_private *private = dev->dev_private;
241         struct drm_exynos_file_private *file_priv;
242         struct drm_pending_vblank_event *v, *vt;
243         struct drm_pending_event *e, *et;
244         unsigned long flags;
245 
246         if (!file->driver_priv)
247                 return;
248 
249         /* Release all events not unhandled by page flip handler. */
250         spin_lock_irqsave(&dev->event_lock, flags);
251         list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
252                         base.link) {
253                 if (v->base.file_priv == file) {
254                         list_del(&v->base.link);
255                         drm_vblank_put(dev, v->pipe);
256                         v->base.destroy(&v->base);
257                 }
258         }
259 
260         /* Release all events handled by page flip handler but not freed. */
261         list_for_each_entry_safe(e, et, &file->event_list, link) {
262                 list_del(&e->link);
263                 e->destroy(e);
264         }
265         spin_unlock_irqrestore(&dev->event_lock, flags);
266 
267         file_priv = file->driver_priv;
268         if (file_priv->anon_filp)
269                 fput(file_priv->anon_filp);
270 
271         kfree(file->driver_priv);
272         file->driver_priv = NULL;
273 }
274 
275 static void exynos_drm_lastclose(struct drm_device *dev)
276 {
277         exynos_drm_fbdev_restore_mode(dev);
278 }
279 
280 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
281         .fault = exynos_drm_gem_fault,
282         .open = drm_gem_vm_open,
283         .close = drm_gem_vm_close,
284 };
285 
286 static const struct drm_ioctl_desc exynos_ioctls[] = {
287         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
288                         DRM_UNLOCKED | DRM_AUTH),
289         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
290                         exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
291                         DRM_AUTH),
292         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
293                         exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
294         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
295                         exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
296         DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
297                         vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
298         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
299                         exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
300         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
301                         exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
302         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
303                         exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
304         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
305                         exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
306         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
307                         exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
308         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
309                         exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
310         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
311                         exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
312 };
313 
314 static const struct file_operations exynos_drm_driver_fops = {
315         .owner          = THIS_MODULE,
316         .open           = drm_open,
317         .mmap           = exynos_drm_gem_mmap,
318         .poll           = drm_poll,
319         .read           = drm_read,
320         .unlocked_ioctl = drm_ioctl,
321 #ifdef CONFIG_COMPAT
322         .compat_ioctl = drm_compat_ioctl,
323 #endif
324         .release        = drm_release,
325 };
326 
327 static struct drm_driver exynos_drm_driver = {
328         .driver_features        = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
329         .load                   = exynos_drm_load,
330         .unload                 = exynos_drm_unload,
331         .suspend                = exynos_drm_suspend,
332         .resume                 = exynos_drm_resume,
333         .open                   = exynos_drm_open,
334         .preclose               = exynos_drm_preclose,
335         .lastclose              = exynos_drm_lastclose,
336         .postclose              = exynos_drm_postclose,
337         .get_vblank_counter     = drm_vblank_count,
338         .enable_vblank          = exynos_drm_crtc_enable_vblank,
339         .disable_vblank         = exynos_drm_crtc_disable_vblank,
340         .gem_free_object        = exynos_drm_gem_free_object,
341         .gem_vm_ops             = &exynos_drm_gem_vm_ops,
342         .dumb_create            = exynos_drm_gem_dumb_create,
343         .dumb_map_offset        = exynos_drm_gem_dumb_map_offset,
344         .dumb_destroy           = drm_gem_dumb_destroy,
345         .prime_handle_to_fd     = drm_gem_prime_handle_to_fd,
346         .prime_fd_to_handle     = drm_gem_prime_fd_to_handle,
347         .gem_prime_export       = exynos_dmabuf_prime_export,
348         .gem_prime_import       = exynos_dmabuf_prime_import,
349         .ioctls                 = exynos_ioctls,
350         .num_ioctls             = ARRAY_SIZE(exynos_ioctls),
351         .fops                   = &exynos_drm_driver_fops,
352         .name   = DRIVER_NAME,
353         .desc   = DRIVER_DESC,
354         .date   = DRIVER_DATE,
355         .major  = DRIVER_MAJOR,
356         .minor  = DRIVER_MINOR,
357 };
358 
359 #ifdef CONFIG_PM_SLEEP
360 static int exynos_drm_sys_suspend(struct device *dev)
361 {
362         struct drm_device *drm_dev = dev_get_drvdata(dev);
363         pm_message_t message;
364 
365         if (pm_runtime_suspended(dev))
366                 return 0;
367 
368         message.event = PM_EVENT_SUSPEND;
369         return exynos_drm_suspend(drm_dev, message);
370 }
371 
372 static int exynos_drm_sys_resume(struct device *dev)
373 {
374         struct drm_device *drm_dev = dev_get_drvdata(dev);
375 
376         if (pm_runtime_suspended(dev))
377                 return 0;
378 
379         return exynos_drm_resume(drm_dev);
380 }
381 #endif
382 
383 static const struct dev_pm_ops exynos_drm_pm_ops = {
384         SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume)
385 };
386 
387 int exynos_drm_component_add(struct device *dev,
388                                 enum exynos_drm_device_type dev_type,
389                                 enum exynos_drm_output_type out_type)
390 {
391         struct component_dev *cdev;
392 
393         if (dev_type != EXYNOS_DEVICE_TYPE_CRTC &&
394                         dev_type != EXYNOS_DEVICE_TYPE_CONNECTOR) {
395                 DRM_ERROR("invalid device type.\n");
396                 return -EINVAL;
397         }
398 
399         mutex_lock(&drm_component_lock);
400 
401         /*
402          * Make sure to check if there is a component which has two device
403          * objects, for connector and for encoder/connector.
404          * It should make sure that crtc and encoder/connector drivers are
405          * ready before exynos drm core binds them.
406          */
407         list_for_each_entry(cdev, &drm_component_list, list) {
408                 if (cdev->out_type == out_type) {
409                         /*
410                          * If crtc and encoder/connector device objects are
411                          * added already just return.
412                          */
413                         if (cdev->dev_type_flag == (EXYNOS_DEVICE_TYPE_CRTC |
414                                                 EXYNOS_DEVICE_TYPE_CONNECTOR)) {
415                                 mutex_unlock(&drm_component_lock);
416                                 return 0;
417                         }
418 
419                         if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) {
420                                 cdev->crtc_dev = dev;
421                                 cdev->dev_type_flag |= dev_type;
422                         }
423 
424                         if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) {
425                                 cdev->conn_dev = dev;
426                                 cdev->dev_type_flag |= dev_type;
427                         }
428 
429                         mutex_unlock(&drm_component_lock);
430                         return 0;
431                 }
432         }
433 
434         mutex_unlock(&drm_component_lock);
435 
436         cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
437         if (!cdev)
438                 return -ENOMEM;
439 
440         if (dev_type == EXYNOS_DEVICE_TYPE_CRTC)
441                 cdev->crtc_dev = dev;
442         if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR)
443                 cdev->conn_dev = dev;
444 
445         cdev->out_type = out_type;
446         cdev->dev_type_flag = dev_type;
447 
448         mutex_lock(&drm_component_lock);
449         list_add_tail(&cdev->list, &drm_component_list);
450         mutex_unlock(&drm_component_lock);
451 
452         return 0;
453 }
454 
455 void exynos_drm_component_del(struct device *dev,
456                                 enum exynos_drm_device_type dev_type)
457 {
458         struct component_dev *cdev, *next;
459 
460         mutex_lock(&drm_component_lock);
461 
462         list_for_each_entry_safe(cdev, next, &drm_component_list, list) {
463                 if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) {
464                         if (cdev->crtc_dev == dev) {
465                                 cdev->crtc_dev = NULL;
466                                 cdev->dev_type_flag &= ~dev_type;
467                         }
468                 }
469 
470                 if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) {
471                         if (cdev->conn_dev == dev) {
472                                 cdev->conn_dev = NULL;
473                                 cdev->dev_type_flag &= ~dev_type;
474                         }
475                 }
476 
477                 /*
478                  * Release cdev object only in case that both of crtc and
479                  * encoder/connector device objects are NULL.
480                  */
481                 if (!cdev->crtc_dev && !cdev->conn_dev) {
482                         list_del(&cdev->list);
483                         kfree(cdev);
484                 }
485 
486                 break;
487         }
488 
489         mutex_unlock(&drm_component_lock);
490 }
491 
492 static int compare_of(struct device *dev, void *data)
493 {
494         return dev == (struct device *)data;
495 }
496 
497 static int exynos_drm_add_components(struct device *dev, struct master *m)
498 {
499         struct component_dev *cdev;
500         unsigned int attach_cnt = 0;
501 
502         mutex_lock(&drm_component_lock);
503 
504         list_for_each_entry(cdev, &drm_component_list, list) {
505                 int ret;
506 
507                 /*
508                  * Add components to master only in case that crtc and
509                  * encoder/connector device objects exist.
510                  */
511                 if (!cdev->crtc_dev || !cdev->conn_dev)
512                         continue;
513 
514                 attach_cnt++;
515 
516                 mutex_unlock(&drm_component_lock);
517 
518                 /*
519                  * fimd and dpi modules have same device object so add
520                  * only crtc device object in this case.
521                  *
522                  * TODO. if dpi module follows driver-model driver then
523                  * below codes can be removed.
524                  */
525                 if (cdev->crtc_dev == cdev->conn_dev) {
526                         ret = component_master_add_child(m, compare_of,
527                                         cdev->crtc_dev);
528                         if (ret < 0)
529                                 return ret;
530 
531                         goto out_lock;
532                 }
533 
534                 /*
535                  * Do not chage below call order.
536                  * crtc device first should be added to master because
537                  * connector/encoder need pipe number of crtc when they
538                  * are created.
539                  */
540                 ret = component_master_add_child(m, compare_of, cdev->crtc_dev);
541                 ret |= component_master_add_child(m, compare_of,
542                                                         cdev->conn_dev);
543                 if (ret < 0)
544                         return ret;
545 
546 out_lock:
547                 mutex_lock(&drm_component_lock);
548         }
549 
550         mutex_unlock(&drm_component_lock);
551 
552         return attach_cnt ? 0 : -ENODEV;
553 }
554 
555 static int exynos_drm_bind(struct device *dev)
556 {
557         return drm_platform_init(&exynos_drm_driver, to_platform_device(dev));
558 }
559 
560 static void exynos_drm_unbind(struct device *dev)
561 {
562         drm_put_dev(dev_get_drvdata(dev));
563 }
564 
565 static const struct component_master_ops exynos_drm_ops = {
566         .add_components = exynos_drm_add_components,
567         .bind           = exynos_drm_bind,
568         .unbind         = exynos_drm_unbind,
569 };
570 
571 static int exynos_drm_platform_probe(struct platform_device *pdev)
572 {
573         int ret;
574 
575         pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
576         exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls);
577 
578 #ifdef CONFIG_DRM_EXYNOS_FIMD
579         ret = platform_driver_register(&fimd_driver);
580         if (ret < 0)
581                 return ret;
582 #endif
583 
584 #ifdef CONFIG_DRM_EXYNOS_DP
585         ret = platform_driver_register(&dp_driver);
586         if (ret < 0)
587                 goto err_unregister_fimd_drv;
588 #endif
589 
590 #ifdef CONFIG_DRM_EXYNOS_DSI
591         ret = platform_driver_register(&dsi_driver);
592         if (ret < 0)
593                 goto err_unregister_dp_drv;
594 #endif
595 
596 #ifdef CONFIG_DRM_EXYNOS_HDMI
597         ret = platform_driver_register(&mixer_driver);
598         if (ret < 0)
599                 goto err_unregister_dsi_drv;
600         ret = platform_driver_register(&hdmi_driver);
601         if (ret < 0)
602                 goto err_unregister_mixer_drv;
603 #endif
604 
605 #ifdef CONFIG_DRM_EXYNOS_G2D
606         ret = platform_driver_register(&g2d_driver);
607         if (ret < 0)
608                 goto err_unregister_hdmi_drv;
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         ret = component_master_add(&pdev->dev, &exynos_drm_ops);
640         if (ret < 0)
641                 DRM_DEBUG_KMS("re-tried by last sub driver probed later.\n");
642 
643         return 0;
644 
645 #ifdef CONFIG_DRM_EXYNOS_IPP
646 err_unregister_ipp_drv:
647         platform_driver_unregister(&ipp_driver);
648 err_unregister_gsc_drv:
649 #endif
650 
651 #ifdef CONFIG_DRM_EXYNOS_GSC
652         platform_driver_unregister(&gsc_driver);
653 err_unregister_rotator_drv:
654 #endif
655 
656 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
657         platform_driver_unregister(&rotator_driver);
658 err_unregister_fimc_drv:
659 #endif
660 
661 #ifdef CONFIG_DRM_EXYNOS_FIMC
662         platform_driver_unregister(&fimc_driver);
663 err_unregister_g2d_drv:
664 #endif
665 
666 #ifdef CONFIG_DRM_EXYNOS_G2D
667         platform_driver_unregister(&g2d_driver);
668 err_unregister_hdmi_drv:
669 #endif
670 
671 #ifdef CONFIG_DRM_EXYNOS_HDMI
672         platform_driver_unregister(&hdmi_driver);
673 err_unregister_mixer_drv:
674         platform_driver_unregister(&mixer_driver);
675 err_unregister_dsi_drv:
676 #endif
677 
678 #ifdef CONFIG_DRM_EXYNOS_DSI
679         platform_driver_unregister(&dsi_driver);
680 err_unregister_dp_drv:
681 #endif
682 
683 #ifdef CONFIG_DRM_EXYNOS_DP
684         platform_driver_unregister(&dp_driver);
685 err_unregister_fimd_drv:
686 #endif
687 
688 #ifdef CONFIG_DRM_EXYNOS_FIMD
689         platform_driver_unregister(&fimd_driver);
690 #endif
691         return ret;
692 }
693 
694 static int exynos_drm_platform_remove(struct platform_device *pdev)
695 {
696 #ifdef CONFIG_DRM_EXYNOS_IPP
697         exynos_platform_device_ipp_unregister();
698         platform_driver_unregister(&ipp_driver);
699 #endif
700 
701 #ifdef CONFIG_DRM_EXYNOS_GSC
702         platform_driver_unregister(&gsc_driver);
703 #endif
704 
705 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
706         platform_driver_unregister(&rotator_driver);
707 #endif
708 
709 #ifdef CONFIG_DRM_EXYNOS_FIMC
710         platform_driver_unregister(&fimc_driver);
711 #endif
712 
713 #ifdef CONFIG_DRM_EXYNOS_G2D
714         platform_driver_unregister(&g2d_driver);
715 #endif
716 
717 #ifdef CONFIG_DRM_EXYNOS_HDMI
718         platform_driver_unregister(&mixer_driver);
719         platform_driver_unregister(&hdmi_driver);
720 #endif
721 
722 #ifdef CONFIG_DRM_EXYNOS_FIMD
723         platform_driver_unregister(&fimd_driver);
724 #endif
725 
726 #ifdef CONFIG_DRM_EXYNOS_DSI
727         platform_driver_unregister(&dsi_driver);
728 #endif
729 
730 #ifdef CONFIG_DRM_EXYNOS_DP
731         platform_driver_unregister(&dp_driver);
732 #endif
733         component_master_del(&pdev->dev, &exynos_drm_ops);
734         return 0;
735 }
736 
737 static struct platform_driver exynos_drm_platform_driver = {
738         .probe  = exynos_drm_platform_probe,
739         .remove = exynos_drm_platform_remove,
740         .driver = {
741                 .owner  = THIS_MODULE,
742                 .name   = "exynos-drm",
743                 .pm     = &exynos_drm_pm_ops,
744         },
745 };
746 
747 static int exynos_drm_init(void)
748 {
749         int ret;
750 
751         exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
752                                                                 NULL, 0);
753         if (IS_ERR(exynos_drm_pdev))
754                 return PTR_ERR(exynos_drm_pdev);
755 
756 #ifdef CONFIG_DRM_EXYNOS_VIDI
757         ret = exynos_drm_probe_vidi();
758         if (ret < 0)
759                 goto err_unregister_pd;
760 #endif
761 
762         ret = platform_driver_register(&exynos_drm_platform_driver);
763         if (ret)
764                 goto err_remove_vidi;
765 
766         return 0;
767 
768 err_remove_vidi:
769 #ifdef CONFIG_DRM_EXYNOS_VIDI
770         exynos_drm_remove_vidi();
771 
772 err_unregister_pd:
773 #endif
774         platform_device_unregister(exynos_drm_pdev);
775 
776         return ret;
777 }
778 
779 static void exynos_drm_exit(void)
780 {
781         platform_driver_unregister(&exynos_drm_platform_driver);
782 #ifdef CONFIG_DRM_EXYNOS_VIDI
783         exynos_drm_remove_vidi();
784 #endif
785         platform_device_unregister(exynos_drm_pdev);
786 }
787 
788 module_init(exynos_drm_init);
789 module_exit(exynos_drm_exit);
790 
791 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
792 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
793 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
794 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
795 MODULE_LICENSE("GPL");
796 

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