2 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * Inki Dae <inki.dae@samsung.com>
5 * Joonyoung Shim <jy0922.shim@samsung.com>
6 * Seung-Woo Kim <sw0312.kim@samsung.com>
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.
14 #include <linux/pm_runtime.h>
16 #include <drm/drm_crtc_helper.h>
18 #include <linux/component.h>
20 #include <drm/exynos_drm.h>
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"
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
41 static struct platform_device
*exynos_drm_pdev
;
43 static DEFINE_MUTEX(drm_component_lock
);
44 static LIST_HEAD(drm_component_list
);
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
;
54 static int exynos_drm_load(struct drm_device
*dev
, unsigned long flags
)
56 struct exynos_drm_private
*private;
60 private = kzalloc(sizeof(struct exynos_drm_private
), GFP_KERNEL
);
64 INIT_LIST_HEAD(&private->pageflip_event_list
);
65 dev_set_drvdata(dev
->dev
, dev
);
66 dev
->dev_private
= (void *)private;
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
74 ret
= drm_create_iommu_mapping(dev
);
76 DRM_ERROR("failed to create iommu mapping.\n");
77 goto err_free_private
;
80 drm_mode_config_init(dev
);
82 exynos_drm_mode_config_init(dev
);
84 for (nr
= 0; nr
< MAX_PLANE
; nr
++) {
85 struct drm_plane
*plane
;
86 unsigned long possible_crtcs
= (1 << MAX_CRTC
) - 1;
88 plane
= exynos_plane_init(dev
, possible_crtcs
,
89 DRM_PLANE_TYPE_OVERLAY
);
94 goto err_mode_config_cleanup
;
97 /* setup possible_clones. */
98 exynos_drm_encoder_setup(dev
);
100 platform_set_drvdata(dev
->platformdev
, dev
);
102 /* Try to bind all sub drivers. */
103 ret
= component_bind_all(dev
->dev
, dev
);
105 goto err_mode_config_cleanup
;
107 ret
= drm_vblank_init(dev
, dev
->mode_config
.num_crtc
);
111 /* Probe non kms sub drivers and virtual display driver. */
112 ret
= exynos_drm_device_subdrv_probe(dev
);
114 goto err_cleanup_vblank
;
117 * enable drm irq mode.
118 * - with irq_enabled = true, we can use the vblank feature.
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.
124 dev
->irq_enabled
= true;
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)
131 dev
->vblank_disable_allowed
= true;
133 /* init kms poll for handling hpd */
134 drm_kms_helper_poll_init(dev
);
136 /* force connectors detection */
137 drm_helper_hpd_irq_event(dev
);
142 drm_vblank_cleanup(dev
);
144 component_unbind_all(dev
->dev
, dev
);
145 err_mode_config_cleanup
:
146 drm_mode_config_cleanup(dev
);
147 drm_release_iommu_mapping(dev
);
154 static int exynos_drm_unload(struct drm_device
*dev
)
156 exynos_drm_device_subdrv_remove(dev
);
158 exynos_drm_fbdev_fini(dev
);
159 drm_kms_helper_poll_fini(dev
);
161 drm_vblank_cleanup(dev
);
162 component_unbind_all(dev
->dev
, dev
);
163 drm_mode_config_cleanup(dev
);
164 drm_release_iommu_mapping(dev
);
166 kfree(dev
->dev_private
);
167 dev
->dev_private
= NULL
;
172 static int exynos_drm_suspend(struct drm_device
*dev
, pm_message_t state
)
174 struct drm_connector
*connector
;
176 drm_modeset_lock_all(dev
);
177 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
178 int old_dpms
= connector
->dpms
;
180 if (connector
->funcs
->dpms
)
181 connector
->funcs
->dpms(connector
, DRM_MODE_DPMS_OFF
);
183 /* Set the old mode back to the connector for resume */
184 connector
->dpms
= old_dpms
;
186 drm_modeset_unlock_all(dev
);
191 static int exynos_drm_resume(struct drm_device
*dev
)
193 struct drm_connector
*connector
;
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
;
200 connector
->dpms
= DRM_MODE_DPMS_OFF
;
201 connector
->funcs
->dpms(connector
, dpms
);
204 drm_modeset_unlock_all(dev
);
206 drm_helper_resume_force_mode(dev
);
211 static int exynos_drm_open(struct drm_device
*dev
, struct drm_file
*file
)
213 struct drm_exynos_file_private
*file_priv
;
216 file_priv
= kzalloc(sizeof(*file_priv
), GFP_KERNEL
);
220 file
->driver_priv
= file_priv
;
222 ret
= exynos_drm_subdrv_open(dev
, file
);
224 goto err_file_priv_free
;
230 file
->driver_priv
= NULL
;
234 static void exynos_drm_preclose(struct drm_device
*dev
,
235 struct drm_file
*file
)
237 exynos_drm_subdrv_close(dev
, file
);
240 static void exynos_drm_postclose(struct drm_device
*dev
, struct drm_file
*file
)
242 struct exynos_drm_private
*private = dev
->dev_private
;
243 struct drm_pending_vblank_event
*v
, *vt
;
244 struct drm_pending_event
*e
, *et
;
247 if (!file
->driver_priv
)
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
,
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
);
261 /* Release all events handled by page flip handler but not freed. */
262 list_for_each_entry_safe(e
, et
, &file
->event_list
, link
) {
266 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
268 kfree(file
->driver_priv
);
269 file
->driver_priv
= NULL
;
272 static void exynos_drm_lastclose(struct drm_device
*dev
)
274 exynos_drm_fbdev_restore_mode(dev
);
277 static 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
,
283 static 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
),
306 static const struct file_operations exynos_drm_driver_fops
= {
307 .owner
= THIS_MODULE
,
309 .mmap
= exynos_drm_gem_mmap
,
312 .unlocked_ioctl
= drm_ioctl
,
314 .compat_ioctl
= drm_compat_ioctl
,
316 .release
= drm_release
,
319 static 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
,
348 .major
= DRIVER_MAJOR
,
349 .minor
= DRIVER_MINOR
,
352 #ifdef CONFIG_PM_SLEEP
353 static int exynos_drm_sys_suspend(struct device
*dev
)
355 struct drm_device
*drm_dev
= dev_get_drvdata(dev
);
356 pm_message_t message
;
358 if (pm_runtime_suspended(dev
) || !drm_dev
)
361 message
.event
= PM_EVENT_SUSPEND
;
362 return exynos_drm_suspend(drm_dev
, message
);
365 static int exynos_drm_sys_resume(struct device
*dev
)
367 struct drm_device
*drm_dev
= dev_get_drvdata(dev
);
369 if (pm_runtime_suspended(dev
) || !drm_dev
)
372 return exynos_drm_resume(drm_dev
);
376 static const struct dev_pm_ops exynos_drm_pm_ops
= {
377 SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend
, exynos_drm_sys_resume
)
380 int exynos_drm_component_add(struct device
*dev
,
381 enum exynos_drm_device_type dev_type
,
382 enum exynos_drm_output_type out_type
)
384 struct component_dev
*cdev
;
386 if (dev_type
!= EXYNOS_DEVICE_TYPE_CRTC
&&
387 dev_type
!= EXYNOS_DEVICE_TYPE_CONNECTOR
) {
388 DRM_ERROR("invalid device type.\n");
392 mutex_lock(&drm_component_lock
);
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.
400 list_for_each_entry(cdev
, &drm_component_list
, list
) {
401 if (cdev
->out_type
== out_type
) {
403 * If crtc and encoder/connector device objects are
404 * added already just return.
406 if (cdev
->dev_type_flag
== (EXYNOS_DEVICE_TYPE_CRTC
|
407 EXYNOS_DEVICE_TYPE_CONNECTOR
)) {
408 mutex_unlock(&drm_component_lock
);
412 if (dev_type
== EXYNOS_DEVICE_TYPE_CRTC
) {
413 cdev
->crtc_dev
= dev
;
414 cdev
->dev_type_flag
|= dev_type
;
417 if (dev_type
== EXYNOS_DEVICE_TYPE_CONNECTOR
) {
418 cdev
->conn_dev
= dev
;
419 cdev
->dev_type_flag
|= dev_type
;
422 mutex_unlock(&drm_component_lock
);
427 mutex_unlock(&drm_component_lock
);
429 cdev
= kzalloc(sizeof(*cdev
), GFP_KERNEL
);
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
;
438 cdev
->out_type
= out_type
;
439 cdev
->dev_type_flag
= dev_type
;
441 mutex_lock(&drm_component_lock
);
442 list_add_tail(&cdev
->list
, &drm_component_list
);
443 mutex_unlock(&drm_component_lock
);
448 void exynos_drm_component_del(struct device
*dev
,
449 enum exynos_drm_device_type dev_type
)
451 struct component_dev
*cdev
, *next
;
453 mutex_lock(&drm_component_lock
);
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
;
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
;
471 * Release cdev object only in case that both of crtc and
472 * encoder/connector device objects are NULL.
474 if (!cdev
->crtc_dev
&& !cdev
->conn_dev
) {
475 list_del(&cdev
->list
);
482 mutex_unlock(&drm_component_lock
);
485 static int compare_dev(struct device
*dev
, void *data
)
487 return dev
== (struct device
*)data
;
490 static struct component_match
*exynos_drm_match_add(struct device
*dev
)
492 struct component_match
*match
= NULL
;
493 struct component_dev
*cdev
;
494 unsigned int attach_cnt
= 0;
496 mutex_lock(&drm_component_lock
);
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
);
504 list_for_each_entry(cdev
, &drm_component_list
, list
) {
506 * Add components to master only in case that crtc and
507 * encoder/connector device objects exist.
509 if (!cdev
->crtc_dev
|| !cdev
->conn_dev
)
514 mutex_unlock(&drm_component_lock
);
517 * fimd and dpi modules have same device object so add
518 * only crtc device object in this case.
520 if (cdev
->crtc_dev
== cdev
->conn_dev
) {
521 component_match_add(dev
, &match
, compare_dev
,
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
532 component_match_add(dev
, &match
, compare_dev
, cdev
->crtc_dev
);
533 component_match_add(dev
, &match
, compare_dev
, cdev
->conn_dev
);
536 mutex_lock(&drm_component_lock
);
539 mutex_unlock(&drm_component_lock
);
541 return attach_cnt
? match
: ERR_PTR(-EPROBE_DEFER
);
544 static int exynos_drm_bind(struct device
*dev
)
546 return drm_platform_init(&exynos_drm_driver
, to_platform_device(dev
));
549 static void exynos_drm_unbind(struct device
*dev
)
551 drm_put_dev(dev_get_drvdata(dev
));
554 static const struct component_master_ops exynos_drm_ops
= {
555 .bind
= exynos_drm_bind
,
556 .unbind
= exynos_drm_unbind
,
559 static int exynos_drm_platform_probe(struct platform_device
*pdev
)
561 struct component_match
*match
;
564 pdev
->dev
.coherent_dma_mask
= DMA_BIT_MASK(32);
565 exynos_drm_driver
.num_ioctls
= ARRAY_SIZE(exynos_ioctls
);
567 #ifdef CONFIG_DRM_EXYNOS_FIMD
568 ret
= platform_driver_register(&fimd_driver
);
573 #ifdef CONFIG_DRM_EXYNOS_DP
574 ret
= platform_driver_register(&dp_driver
);
576 goto err_unregister_fimd_drv
;
579 #ifdef CONFIG_DRM_EXYNOS_DSI
580 ret
= platform_driver_register(&dsi_driver
);
582 goto err_unregister_dp_drv
;
585 #ifdef CONFIG_DRM_EXYNOS_HDMI
586 ret
= platform_driver_register(&mixer_driver
);
588 goto err_unregister_dsi_drv
;
589 ret
= platform_driver_register(&hdmi_driver
);
591 goto err_unregister_mixer_drv
;
594 match
= exynos_drm_match_add(&pdev
->dev
);
596 ret
= PTR_ERR(match
);
597 goto err_unregister_hdmi_drv
;
600 ret
= component_master_add_with_match(&pdev
->dev
, &exynos_drm_ops
,
603 goto err_unregister_hdmi_drv
;
605 #ifdef CONFIG_DRM_EXYNOS_G2D
606 ret
= platform_driver_register(&g2d_driver
);
608 goto err_del_component_master
;
611 #ifdef CONFIG_DRM_EXYNOS_FIMC
612 ret
= platform_driver_register(&fimc_driver
);
614 goto err_unregister_g2d_drv
;
617 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
618 ret
= platform_driver_register(&rotator_driver
);
620 goto err_unregister_fimc_drv
;
623 #ifdef CONFIG_DRM_EXYNOS_GSC
624 ret
= platform_driver_register(&gsc_driver
);
626 goto err_unregister_rotator_drv
;
629 #ifdef CONFIG_DRM_EXYNOS_IPP
630 ret
= platform_driver_register(&ipp_driver
);
632 goto err_unregister_gsc_drv
;
634 ret
= exynos_platform_device_ipp_register();
636 goto err_unregister_ipp_drv
;
641 #ifdef CONFIG_DRM_EXYNOS_IPP
642 err_unregister_ipp_drv
:
643 platform_driver_unregister(&ipp_driver
);
644 err_unregister_gsc_drv
:
647 #ifdef CONFIG_DRM_EXYNOS_GSC
648 platform_driver_unregister(&gsc_driver
);
649 err_unregister_rotator_drv
:
652 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
653 platform_driver_unregister(&rotator_driver
);
654 err_unregister_fimc_drv
:
657 #ifdef CONFIG_DRM_EXYNOS_FIMC
658 platform_driver_unregister(&fimc_driver
);
659 err_unregister_g2d_drv
:
662 #ifdef CONFIG_DRM_EXYNOS_G2D
663 platform_driver_unregister(&g2d_driver
);
664 err_del_component_master
:
666 component_master_del(&pdev
->dev
, &exynos_drm_ops
);
668 err_unregister_hdmi_drv
:
669 #ifdef CONFIG_DRM_EXYNOS_HDMI
670 platform_driver_unregister(&hdmi_driver
);
671 err_unregister_mixer_drv
:
672 platform_driver_unregister(&mixer_driver
);
673 err_unregister_dsi_drv
:
676 #ifdef CONFIG_DRM_EXYNOS_DSI
677 platform_driver_unregister(&dsi_driver
);
678 err_unregister_dp_drv
:
681 #ifdef CONFIG_DRM_EXYNOS_DP
682 platform_driver_unregister(&dp_driver
);
683 err_unregister_fimd_drv
:
686 #ifdef CONFIG_DRM_EXYNOS_FIMD
687 platform_driver_unregister(&fimd_driver
);
692 static int exynos_drm_platform_remove(struct platform_device
*pdev
)
694 #ifdef CONFIG_DRM_EXYNOS_IPP
695 exynos_platform_device_ipp_unregister();
696 platform_driver_unregister(&ipp_driver
);
699 #ifdef CONFIG_DRM_EXYNOS_GSC
700 platform_driver_unregister(&gsc_driver
);
703 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
704 platform_driver_unregister(&rotator_driver
);
707 #ifdef CONFIG_DRM_EXYNOS_FIMC
708 platform_driver_unregister(&fimc_driver
);
711 #ifdef CONFIG_DRM_EXYNOS_G2D
712 platform_driver_unregister(&g2d_driver
);
715 #ifdef CONFIG_DRM_EXYNOS_HDMI
716 platform_driver_unregister(&mixer_driver
);
717 platform_driver_unregister(&hdmi_driver
);
720 #ifdef CONFIG_DRM_EXYNOS_FIMD
721 platform_driver_unregister(&fimd_driver
);
724 #ifdef CONFIG_DRM_EXYNOS_DSI
725 platform_driver_unregister(&dsi_driver
);
728 #ifdef CONFIG_DRM_EXYNOS_DP
729 platform_driver_unregister(&dp_driver
);
731 component_master_del(&pdev
->dev
, &exynos_drm_ops
);
735 static struct platform_driver exynos_drm_platform_driver
= {
736 .probe
= exynos_drm_platform_probe
,
737 .remove
= exynos_drm_platform_remove
,
739 .name
= "exynos-drm",
740 .pm
= &exynos_drm_pm_ops
,
744 static int exynos_drm_init(void)
749 * Register device object only in case of Exynos SoC.
751 * Below codes resolves temporarily infinite loop issue incurred
752 * by Exynos drm driver when using multi-platform kernel.
753 * So these codes will be replaced with more generic way later.
755 if (!of_machine_is_compatible("samsung,exynos3") &&
756 !of_machine_is_compatible("samsung,exynos4") &&
757 !of_machine_is_compatible("samsung,exynos5"))
760 exynos_drm_pdev
= platform_device_register_simple("exynos-drm", -1,
762 if (IS_ERR(exynos_drm_pdev
))
763 return PTR_ERR(exynos_drm_pdev
);
765 #ifdef CONFIG_DRM_EXYNOS_VIDI
766 ret
= exynos_drm_probe_vidi();
768 goto err_unregister_pd
;
771 ret
= platform_driver_register(&exynos_drm_platform_driver
);
773 goto err_remove_vidi
;
778 #ifdef CONFIG_DRM_EXYNOS_VIDI
779 exynos_drm_remove_vidi();
783 platform_device_unregister(exynos_drm_pdev
);
788 static void exynos_drm_exit(void)
790 platform_driver_unregister(&exynos_drm_platform_driver
);
791 #ifdef CONFIG_DRM_EXYNOS_VIDI
792 exynos_drm_remove_vidi();
794 platform_device_unregister(exynos_drm_pdev
);
797 module_init(exynos_drm_init
);
798 module_exit(exynos_drm_exit
);
800 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
801 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
802 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
803 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
804 MODULE_LICENSE("GPL");