2 * Copyright (C) 2012 Avionic Design GmbH
3 * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
10 #include <linux/host1x.h>
15 #define DRIVER_NAME "tegra"
16 #define DRIVER_DESC "NVIDIA Tegra graphics"
17 #define DRIVER_DATE "20120330"
18 #define DRIVER_MAJOR 0
19 #define DRIVER_MINOR 0
20 #define DRIVER_PATCHLEVEL 0
22 struct tegra_drm_file {
23 struct list_head contexts;
26 static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
28 struct host1x_device *device = to_host1x_device(drm->dev);
29 struct tegra_drm *tegra;
32 tegra = kzalloc(sizeof(*tegra), GFP_KERNEL);
36 mutex_init(&tegra->clients_lock);
37 INIT_LIST_HEAD(&tegra->clients);
38 drm->dev_private = tegra;
41 drm_mode_config_init(drm);
43 err = tegra_drm_fb_prepare(drm);
47 drm_kms_helper_poll_init(drm);
49 err = host1x_device_init(device);
54 * We don't use the drm_irq_install() helpers provided by the DRM
55 * core, so we need to set this manually in order to allow the
56 * DRM_IOCTL_WAIT_VBLANK to operate correctly.
58 drm->irq_enabled = true;
60 err = drm_vblank_init(drm, drm->mode_config.num_crtc);
64 err = tegra_drm_fb_init(drm);
71 static int tegra_drm_unload(struct drm_device *drm)
73 struct host1x_device *device = to_host1x_device(drm->dev);
76 drm_kms_helper_poll_fini(drm);
77 tegra_drm_fb_exit(drm);
78 drm_vblank_cleanup(drm);
79 drm_mode_config_cleanup(drm);
81 err = host1x_device_exit(device);
88 static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp)
90 struct tegra_drm_file *fpriv;
92 fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
96 INIT_LIST_HEAD(&fpriv->contexts);
97 filp->driver_priv = fpriv;
102 static void tegra_drm_context_free(struct tegra_drm_context *context)
104 context->client->ops->close_channel(context);
108 static void tegra_drm_lastclose(struct drm_device *drm)
110 #ifdef CONFIG_DRM_TEGRA_FBDEV
111 struct tegra_drm *tegra = drm->dev_private;
113 tegra_fbdev_restore_mode(tegra->fbdev);
117 static struct host1x_bo *
118 host1x_bo_lookup(struct drm_device *drm, struct drm_file *file, u32 handle)
120 struct drm_gem_object *gem;
123 gem = drm_gem_object_lookup(drm, file, handle);
127 mutex_lock(&drm->struct_mutex);
128 drm_gem_object_unreference(gem);
129 mutex_unlock(&drm->struct_mutex);
131 bo = to_tegra_bo(gem);
135 static int host1x_reloc_copy_from_user(struct host1x_reloc *dest,
136 struct drm_tegra_reloc __user *src,
137 struct drm_device *drm,
138 struct drm_file *file)
143 err = get_user(cmdbuf, &src->cmdbuf.handle);
147 err = get_user(dest->cmdbuf.offset, &src->cmdbuf.offset);
151 err = get_user(target, &src->target.handle);
155 err = get_user(dest->target.offset, &src->cmdbuf.offset);
159 err = get_user(dest->shift, &src->shift);
163 dest->cmdbuf.bo = host1x_bo_lookup(drm, file, cmdbuf);
164 if (!dest->cmdbuf.bo)
167 dest->target.bo = host1x_bo_lookup(drm, file, target);
168 if (!dest->target.bo)
174 int tegra_drm_submit(struct tegra_drm_context *context,
175 struct drm_tegra_submit *args, struct drm_device *drm,
176 struct drm_file *file)
178 unsigned int num_cmdbufs = args->num_cmdbufs;
179 unsigned int num_relocs = args->num_relocs;
180 unsigned int num_waitchks = args->num_waitchks;
181 struct drm_tegra_cmdbuf __user *cmdbufs =
182 (void __user *)(uintptr_t)args->cmdbufs;
183 struct drm_tegra_reloc __user *relocs =
184 (void __user *)(uintptr_t)args->relocs;
185 struct drm_tegra_waitchk __user *waitchks =
186 (void __user *)(uintptr_t)args->waitchks;
187 struct drm_tegra_syncpt syncpt;
188 struct host1x_job *job;
191 /* We don't yet support other than one syncpt_incr struct per submit */
192 if (args->num_syncpts != 1)
195 job = host1x_job_alloc(context->channel, args->num_cmdbufs,
196 args->num_relocs, args->num_waitchks);
200 job->num_relocs = args->num_relocs;
201 job->num_waitchk = args->num_waitchks;
202 job->client = (u32)args->context;
203 job->class = context->client->base.class;
204 job->serialize = true;
206 while (num_cmdbufs) {
207 struct drm_tegra_cmdbuf cmdbuf;
208 struct host1x_bo *bo;
210 if (copy_from_user(&cmdbuf, cmdbufs, sizeof(cmdbuf))) {
215 bo = host1x_bo_lookup(drm, file, cmdbuf.handle);
221 host1x_job_add_gather(job, bo, cmdbuf.words, cmdbuf.offset);
226 /* copy and resolve relocations from submit */
227 while (num_relocs--) {
228 err = host1x_reloc_copy_from_user(&job->relocarray[num_relocs],
229 &relocs[num_relocs], drm,
235 if (copy_from_user(job->waitchk, waitchks,
236 sizeof(*waitchks) * num_waitchks)) {
241 if (copy_from_user(&syncpt, (void __user *)(uintptr_t)args->syncpts,
247 job->is_addr_reg = context->client->ops->is_addr_reg;
248 job->syncpt_incrs = syncpt.incrs;
249 job->syncpt_id = syncpt.id;
250 job->timeout = 10000;
252 if (args->timeout && args->timeout < 10000)
253 job->timeout = args->timeout;
255 err = host1x_job_pin(job, context->client->base.dev);
259 err = host1x_job_submit(job);
263 args->fence = job->syncpt_end;
269 host1x_job_unpin(job);
276 #ifdef CONFIG_DRM_TEGRA_STAGING
277 static struct tegra_drm_context *tegra_drm_get_context(__u64 context)
279 return (struct tegra_drm_context *)(uintptr_t)context;
282 static bool tegra_drm_file_owns_context(struct tegra_drm_file *file,
283 struct tegra_drm_context *context)
285 struct tegra_drm_context *ctx;
287 list_for_each_entry(ctx, &file->contexts, list)
294 static int tegra_gem_create(struct drm_device *drm, void *data,
295 struct drm_file *file)
297 struct drm_tegra_gem_create *args = data;
300 bo = tegra_bo_create_with_handle(file, drm, args->size, args->flags,
308 static int tegra_gem_mmap(struct drm_device *drm, void *data,
309 struct drm_file *file)
311 struct drm_tegra_gem_mmap *args = data;
312 struct drm_gem_object *gem;
315 gem = drm_gem_object_lookup(drm, file, args->handle);
319 bo = to_tegra_bo(gem);
321 args->offset = drm_vma_node_offset_addr(&bo->gem.vma_node);
323 drm_gem_object_unreference(gem);
328 static int tegra_syncpt_read(struct drm_device *drm, void *data,
329 struct drm_file *file)
331 struct host1x *host = dev_get_drvdata(drm->dev->parent);
332 struct drm_tegra_syncpt_read *args = data;
333 struct host1x_syncpt *sp;
335 sp = host1x_syncpt_get(host, args->id);
339 args->value = host1x_syncpt_read_min(sp);
343 static int tegra_syncpt_incr(struct drm_device *drm, void *data,
344 struct drm_file *file)
346 struct host1x *host1x = dev_get_drvdata(drm->dev->parent);
347 struct drm_tegra_syncpt_incr *args = data;
348 struct host1x_syncpt *sp;
350 sp = host1x_syncpt_get(host1x, args->id);
354 return host1x_syncpt_incr(sp);
357 static int tegra_syncpt_wait(struct drm_device *drm, void *data,
358 struct drm_file *file)
360 struct host1x *host1x = dev_get_drvdata(drm->dev->parent);
361 struct drm_tegra_syncpt_wait *args = data;
362 struct host1x_syncpt *sp;
364 sp = host1x_syncpt_get(host1x, args->id);
368 return host1x_syncpt_wait(sp, args->thresh, args->timeout,
372 static int tegra_open_channel(struct drm_device *drm, void *data,
373 struct drm_file *file)
375 struct tegra_drm_file *fpriv = file->driver_priv;
376 struct tegra_drm *tegra = drm->dev_private;
377 struct drm_tegra_open_channel *args = data;
378 struct tegra_drm_context *context;
379 struct tegra_drm_client *client;
382 context = kzalloc(sizeof(*context), GFP_KERNEL);
386 list_for_each_entry(client, &tegra->clients, list)
387 if (client->base.class == args->client) {
388 err = client->ops->open_channel(client, context);
392 list_add(&context->list, &fpriv->contexts);
393 args->context = (uintptr_t)context;
394 context->client = client;
402 static int tegra_close_channel(struct drm_device *drm, void *data,
403 struct drm_file *file)
405 struct tegra_drm_file *fpriv = file->driver_priv;
406 struct drm_tegra_close_channel *args = data;
407 struct tegra_drm_context *context;
409 context = tegra_drm_get_context(args->context);
411 if (!tegra_drm_file_owns_context(fpriv, context))
414 list_del(&context->list);
415 tegra_drm_context_free(context);
420 static int tegra_get_syncpt(struct drm_device *drm, void *data,
421 struct drm_file *file)
423 struct tegra_drm_file *fpriv = file->driver_priv;
424 struct drm_tegra_get_syncpt *args = data;
425 struct tegra_drm_context *context;
426 struct host1x_syncpt *syncpt;
428 context = tegra_drm_get_context(args->context);
430 if (!tegra_drm_file_owns_context(fpriv, context))
433 if (args->index >= context->client->base.num_syncpts)
436 syncpt = context->client->base.syncpts[args->index];
437 args->id = host1x_syncpt_id(syncpt);
442 static int tegra_submit(struct drm_device *drm, void *data,
443 struct drm_file *file)
445 struct tegra_drm_file *fpriv = file->driver_priv;
446 struct drm_tegra_submit *args = data;
447 struct tegra_drm_context *context;
449 context = tegra_drm_get_context(args->context);
451 if (!tegra_drm_file_owns_context(fpriv, context))
454 return context->client->ops->submit(context, args, drm, file);
457 static int tegra_get_syncpt_base(struct drm_device *drm, void *data,
458 struct drm_file *file)
460 struct tegra_drm_file *fpriv = file->driver_priv;
461 struct drm_tegra_get_syncpt_base *args = data;
462 struct tegra_drm_context *context;
463 struct host1x_syncpt_base *base;
464 struct host1x_syncpt *syncpt;
466 context = tegra_drm_get_context(args->context);
468 if (!tegra_drm_file_owns_context(fpriv, context))
471 if (args->syncpt >= context->client->base.num_syncpts)
474 syncpt = context->client->base.syncpts[args->syncpt];
476 base = host1x_syncpt_get_base(syncpt);
480 args->id = host1x_syncpt_base_id(base);
485 static int tegra_gem_set_tiling(struct drm_device *drm, void *data,
486 struct drm_file *file)
488 struct drm_tegra_gem_set_tiling *args = data;
489 enum tegra_bo_tiling_mode mode;
490 struct drm_gem_object *gem;
491 unsigned long value = 0;
494 switch (args->mode) {
495 case DRM_TEGRA_GEM_TILING_MODE_PITCH:
496 mode = TEGRA_BO_TILING_MODE_PITCH;
498 if (args->value != 0)
503 case DRM_TEGRA_GEM_TILING_MODE_TILED:
504 mode = TEGRA_BO_TILING_MODE_TILED;
506 if (args->value != 0)
511 case DRM_TEGRA_GEM_TILING_MODE_BLOCK:
512 mode = TEGRA_BO_TILING_MODE_BLOCK;
524 gem = drm_gem_object_lookup(drm, file, args->handle);
528 bo = to_tegra_bo(gem);
530 bo->tiling.mode = mode;
531 bo->tiling.value = value;
533 drm_gem_object_unreference(gem);
538 static int tegra_gem_get_tiling(struct drm_device *drm, void *data,
539 struct drm_file *file)
541 struct drm_tegra_gem_get_tiling *args = data;
542 struct drm_gem_object *gem;
546 gem = drm_gem_object_lookup(drm, file, args->handle);
550 bo = to_tegra_bo(gem);
552 switch (bo->tiling.mode) {
553 case TEGRA_BO_TILING_MODE_PITCH:
554 args->mode = DRM_TEGRA_GEM_TILING_MODE_PITCH;
558 case TEGRA_BO_TILING_MODE_TILED:
559 args->mode = DRM_TEGRA_GEM_TILING_MODE_TILED;
563 case TEGRA_BO_TILING_MODE_BLOCK:
564 args->mode = DRM_TEGRA_GEM_TILING_MODE_BLOCK;
565 args->value = bo->tiling.value;
573 drm_gem_object_unreference(gem);
578 static int tegra_gem_set_flags(struct drm_device *drm, void *data,
579 struct drm_file *file)
581 struct drm_tegra_gem_set_flags *args = data;
582 struct drm_gem_object *gem;
585 if (args->flags & ~DRM_TEGRA_GEM_FLAGS)
588 gem = drm_gem_object_lookup(drm, file, args->handle);
592 bo = to_tegra_bo(gem);
595 if (args->flags & DRM_TEGRA_GEM_BOTTOM_UP)
596 bo->flags |= TEGRA_BO_BOTTOM_UP;
598 drm_gem_object_unreference(gem);
603 static int tegra_gem_get_flags(struct drm_device *drm, void *data,
604 struct drm_file *file)
606 struct drm_tegra_gem_get_flags *args = data;
607 struct drm_gem_object *gem;
610 gem = drm_gem_object_lookup(drm, file, args->handle);
614 bo = to_tegra_bo(gem);
617 if (bo->flags & TEGRA_BO_BOTTOM_UP)
618 args->flags |= DRM_TEGRA_GEM_BOTTOM_UP;
620 drm_gem_object_unreference(gem);
626 static const struct drm_ioctl_desc tegra_drm_ioctls[] = {
627 #ifdef CONFIG_DRM_TEGRA_STAGING
628 DRM_IOCTL_DEF_DRV(TEGRA_GEM_CREATE, tegra_gem_create, DRM_UNLOCKED),
629 DRM_IOCTL_DEF_DRV(TEGRA_GEM_MMAP, tegra_gem_mmap, DRM_UNLOCKED),
630 DRM_IOCTL_DEF_DRV(TEGRA_SYNCPT_READ, tegra_syncpt_read, DRM_UNLOCKED),
631 DRM_IOCTL_DEF_DRV(TEGRA_SYNCPT_INCR, tegra_syncpt_incr, DRM_UNLOCKED),
632 DRM_IOCTL_DEF_DRV(TEGRA_SYNCPT_WAIT, tegra_syncpt_wait, DRM_UNLOCKED),
633 DRM_IOCTL_DEF_DRV(TEGRA_OPEN_CHANNEL, tegra_open_channel, DRM_UNLOCKED),
634 DRM_IOCTL_DEF_DRV(TEGRA_CLOSE_CHANNEL, tegra_close_channel, DRM_UNLOCKED),
635 DRM_IOCTL_DEF_DRV(TEGRA_GET_SYNCPT, tegra_get_syncpt, DRM_UNLOCKED),
636 DRM_IOCTL_DEF_DRV(TEGRA_SUBMIT, tegra_submit, DRM_UNLOCKED),
637 DRM_IOCTL_DEF_DRV(TEGRA_GET_SYNCPT_BASE, tegra_get_syncpt_base, DRM_UNLOCKED),
638 DRM_IOCTL_DEF_DRV(TEGRA_GEM_SET_TILING, tegra_gem_set_tiling, DRM_UNLOCKED),
639 DRM_IOCTL_DEF_DRV(TEGRA_GEM_GET_TILING, tegra_gem_get_tiling, DRM_UNLOCKED),
640 DRM_IOCTL_DEF_DRV(TEGRA_GEM_SET_FLAGS, tegra_gem_set_flags, DRM_UNLOCKED),
641 DRM_IOCTL_DEF_DRV(TEGRA_GEM_GET_FLAGS, tegra_gem_get_flags, DRM_UNLOCKED),
645 static const struct file_operations tegra_drm_fops = {
646 .owner = THIS_MODULE,
648 .release = drm_release,
649 .unlocked_ioctl = drm_ioctl,
650 .mmap = tegra_drm_mmap,
654 .compat_ioctl = drm_compat_ioctl,
656 .llseek = noop_llseek,
659 static struct drm_crtc *tegra_crtc_from_pipe(struct drm_device *drm, int pipe)
661 struct drm_crtc *crtc;
663 list_for_each_entry(crtc, &drm->mode_config.crtc_list, head) {
664 struct tegra_dc *dc = to_tegra_dc(crtc);
666 if (dc->pipe == pipe)
673 static u32 tegra_drm_get_vblank_counter(struct drm_device *dev, int crtc)
675 /* TODO: implement real hardware counter using syncpoints */
676 return drm_vblank_count(dev, crtc);
679 static int tegra_drm_enable_vblank(struct drm_device *drm, int pipe)
681 struct drm_crtc *crtc = tegra_crtc_from_pipe(drm, pipe);
682 struct tegra_dc *dc = to_tegra_dc(crtc);
687 tegra_dc_enable_vblank(dc);
692 static void tegra_drm_disable_vblank(struct drm_device *drm, int pipe)
694 struct drm_crtc *crtc = tegra_crtc_from_pipe(drm, pipe);
695 struct tegra_dc *dc = to_tegra_dc(crtc);
698 tegra_dc_disable_vblank(dc);
701 static void tegra_drm_preclose(struct drm_device *drm, struct drm_file *file)
703 struct tegra_drm_file *fpriv = file->driver_priv;
704 struct tegra_drm_context *context, *tmp;
705 struct drm_crtc *crtc;
707 list_for_each_entry(crtc, &drm->mode_config.crtc_list, head)
708 tegra_dc_cancel_page_flip(crtc, file);
710 list_for_each_entry_safe(context, tmp, &fpriv->contexts, list)
711 tegra_drm_context_free(context);
716 #ifdef CONFIG_DEBUG_FS
717 static int tegra_debugfs_framebuffers(struct seq_file *s, void *data)
719 struct drm_info_node *node = (struct drm_info_node *)s->private;
720 struct drm_device *drm = node->minor->dev;
721 struct drm_framebuffer *fb;
723 mutex_lock(&drm->mode_config.fb_lock);
725 list_for_each_entry(fb, &drm->mode_config.fb_list, head) {
726 seq_printf(s, "%3d: user size: %d x %d, depth %d, %d bpp, refcount %d\n",
727 fb->base.id, fb->width, fb->height, fb->depth,
729 atomic_read(&fb->refcount.refcount));
732 mutex_unlock(&drm->mode_config.fb_lock);
737 static struct drm_info_list tegra_debugfs_list[] = {
738 { "framebuffers", tegra_debugfs_framebuffers, 0 },
741 static int tegra_debugfs_init(struct drm_minor *minor)
743 return drm_debugfs_create_files(tegra_debugfs_list,
744 ARRAY_SIZE(tegra_debugfs_list),
745 minor->debugfs_root, minor);
748 static void tegra_debugfs_cleanup(struct drm_minor *minor)
750 drm_debugfs_remove_files(tegra_debugfs_list,
751 ARRAY_SIZE(tegra_debugfs_list), minor);
755 static struct drm_driver tegra_drm_driver = {
756 .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
757 .load = tegra_drm_load,
758 .unload = tegra_drm_unload,
759 .open = tegra_drm_open,
760 .preclose = tegra_drm_preclose,
761 .lastclose = tegra_drm_lastclose,
763 .get_vblank_counter = tegra_drm_get_vblank_counter,
764 .enable_vblank = tegra_drm_enable_vblank,
765 .disable_vblank = tegra_drm_disable_vblank,
767 #if defined(CONFIG_DEBUG_FS)
768 .debugfs_init = tegra_debugfs_init,
769 .debugfs_cleanup = tegra_debugfs_cleanup,
772 .gem_free_object = tegra_bo_free_object,
773 .gem_vm_ops = &tegra_bo_vm_ops,
775 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
776 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
777 .gem_prime_export = tegra_gem_prime_export,
778 .gem_prime_import = tegra_gem_prime_import,
780 .dumb_create = tegra_bo_dumb_create,
781 .dumb_map_offset = tegra_bo_dumb_map_offset,
782 .dumb_destroy = drm_gem_dumb_destroy,
784 .ioctls = tegra_drm_ioctls,
785 .num_ioctls = ARRAY_SIZE(tegra_drm_ioctls),
786 .fops = &tegra_drm_fops,
791 .major = DRIVER_MAJOR,
792 .minor = DRIVER_MINOR,
793 .patchlevel = DRIVER_PATCHLEVEL,
796 int tegra_drm_register_client(struct tegra_drm *tegra,
797 struct tegra_drm_client *client)
799 mutex_lock(&tegra->clients_lock);
800 list_add_tail(&client->list, &tegra->clients);
801 mutex_unlock(&tegra->clients_lock);
806 int tegra_drm_unregister_client(struct tegra_drm *tegra,
807 struct tegra_drm_client *client)
809 mutex_lock(&tegra->clients_lock);
810 list_del_init(&client->list);
811 mutex_unlock(&tegra->clients_lock);
816 static int host1x_drm_probe(struct host1x_device *dev)
818 struct drm_driver *driver = &tegra_drm_driver;
819 struct drm_device *drm;
822 drm = drm_dev_alloc(driver, &dev->dev);
826 drm_dev_set_unique(drm, dev_name(&dev->dev));
827 dev_set_drvdata(&dev->dev, drm);
829 err = drm_dev_register(drm, 0);
833 DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", driver->name,
834 driver->major, driver->minor, driver->patchlevel,
835 driver->date, drm->primary->index);
844 static int host1x_drm_remove(struct host1x_device *dev)
846 struct drm_device *drm = dev_get_drvdata(&dev->dev);
848 drm_dev_unregister(drm);
854 static const struct of_device_id host1x_drm_subdevs[] = {
855 { .compatible = "nvidia,tegra20-dc", },
856 { .compatible = "nvidia,tegra20-hdmi", },
857 { .compatible = "nvidia,tegra20-gr2d", },
858 { .compatible = "nvidia,tegra20-gr3d", },
859 { .compatible = "nvidia,tegra30-dc", },
860 { .compatible = "nvidia,tegra30-hdmi", },
861 { .compatible = "nvidia,tegra30-gr2d", },
862 { .compatible = "nvidia,tegra30-gr3d", },
863 { .compatible = "nvidia,tegra114-dsi", },
864 { .compatible = "nvidia,tegra114-hdmi", },
865 { .compatible = "nvidia,tegra114-gr3d", },
866 { .compatible = "nvidia,tegra124-dc", },
867 { .compatible = "nvidia,tegra124-sor", },
868 { .compatible = "nvidia,tegra124-hdmi", },
872 static struct host1x_driver host1x_drm_driver = {
874 .probe = host1x_drm_probe,
875 .remove = host1x_drm_remove,
876 .subdevs = host1x_drm_subdevs,
879 static int __init host1x_drm_init(void)
883 err = host1x_driver_register(&host1x_drm_driver);
887 err = platform_driver_register(&tegra_dc_driver);
889 goto unregister_host1x;
891 err = platform_driver_register(&tegra_dsi_driver);
895 err = platform_driver_register(&tegra_sor_driver);
899 err = platform_driver_register(&tegra_hdmi_driver);
903 err = platform_driver_register(&tegra_dpaux_driver);
905 goto unregister_hdmi;
907 err = platform_driver_register(&tegra_gr2d_driver);
909 goto unregister_dpaux;
911 err = platform_driver_register(&tegra_gr3d_driver);
913 goto unregister_gr2d;
918 platform_driver_unregister(&tegra_gr2d_driver);
920 platform_driver_unregister(&tegra_dpaux_driver);
922 platform_driver_unregister(&tegra_hdmi_driver);
924 platform_driver_unregister(&tegra_sor_driver);
926 platform_driver_unregister(&tegra_dsi_driver);
928 platform_driver_unregister(&tegra_dc_driver);
930 host1x_driver_unregister(&host1x_drm_driver);
933 module_init(host1x_drm_init);
935 static void __exit host1x_drm_exit(void)
937 platform_driver_unregister(&tegra_gr3d_driver);
938 platform_driver_unregister(&tegra_gr2d_driver);
939 platform_driver_unregister(&tegra_dpaux_driver);
940 platform_driver_unregister(&tegra_hdmi_driver);
941 platform_driver_unregister(&tegra_sor_driver);
942 platform_driver_unregister(&tegra_dsi_driver);
943 platform_driver_unregister(&tegra_dc_driver);
944 host1x_driver_unregister(&host1x_drm_driver);
946 module_exit(host1x_drm_exit);
948 MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>");
949 MODULE_DESCRIPTION("NVIDIA Tegra DRM driver");
950 MODULE_LICENSE("GPL v2");