Merge tag 'mvebu-fixes-4.14-1' of git://git.infradead.org/linux-mvebu into fixes
[linux-2.6-block.git] / drivers / gpu / drm / exynos / exynos_drm_drv.c
CommitLineData
1c248b7d
ID
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 *
d81aecb5
ID
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.
1c248b7d
ID
12 */
13
af65c804 14#include <linux/pm_runtime.h>
760285e7 15#include <drm/drmP.h>
a379df19
GP
16#include <drm/drm_atomic.h>
17#include <drm/drm_atomic_helper.h>
760285e7 18#include <drm/drm_crtc_helper.h>
1c248b7d 19
f37cd5e8 20#include <linux/component.h>
96f54215 21
1c248b7d
ID
22#include <drm/exynos_drm.h>
23
24#include "exynos_drm_drv.h"
1c248b7d
ID
25#include "exynos_drm_fbdev.h"
26#include "exynos_drm_fb.h"
27#include "exynos_drm_gem.h"
864ee9e6 28#include "exynos_drm_plane.h"
b73d1230 29#include "exynos_drm_vidi.h"
d7f1642c 30#include "exynos_drm_g2d.h"
cb471f14 31#include "exynos_drm_ipp.h"
0519f9a1 32#include "exynos_drm_iommu.h"
1c248b7d 33
0edf9936 34#define DRIVER_NAME "exynos"
1c248b7d
ID
35#define DRIVER_DESC "Samsung SoC DRM"
36#define DRIVER_DATE "20110530"
37#define DRIVER_MAJOR 1
38#define DRIVER_MINOR 0
39
f43c3596
MS
40static struct device *exynos_drm_get_dma_device(void);
41
38d868e4
VS
42int exynos_atomic_check(struct drm_device *dev,
43 struct drm_atomic_state *state)
44{
45 int ret;
46
47 ret = drm_atomic_helper_check_modeset(dev, state);
48 if (ret)
49 return ret;
50
51 ret = drm_atomic_normalize_zpos(dev, state);
52 if (ret)
53 return ret;
54
55 ret = drm_atomic_helper_check_planes(dev, state);
56 if (ret)
57 return ret;
58
59 return ret;
60}
61
9084f7b8
JS
62static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
63{
d7f1642c 64 struct drm_exynos_file_private *file_priv;
ba3706c0 65 int ret;
d7f1642c 66
d7f1642c
JS
67 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
68 if (!file_priv)
69 return -ENOMEM;
70
d7f1642c 71 file->driver_priv = file_priv;
b2df26c1 72
ba3706c0 73 ret = exynos_drm_subdrv_open(dev, file);
6ca605f7 74 if (ret)
307ceaff 75 goto err_file_priv_free;
ba3706c0 76
6ca605f7 77 return ret;
307ceaff 78
307ceaff 79err_file_priv_free:
6ca605f7
SK
80 kfree(file_priv);
81 file->driver_priv = NULL;
ba3706c0 82 return ret;
9084f7b8
JS
83}
84
0cbc330e 85static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
ccf4d883 86{
b13b4d1b 87 exynos_drm_subdrv_close(dev, file);
53ef299f
ID
88 kfree(file->driver_priv);
89 file->driver_priv = NULL;
90}
91
1c248b7d
ID
92static void exynos_drm_lastclose(struct drm_device *dev)
93{
1c248b7d
ID
94 exynos_drm_fbdev_restore_mode(dev);
95}
96
78b68556 97static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
1c248b7d
ID
98 .fault = exynos_drm_gem_fault,
99 .open = drm_gem_vm_open,
100 .close = drm_gem_vm_close,
101};
102
baa70943 103static const struct drm_ioctl_desc exynos_ioctls[] = {
1c248b7d 104 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
f8c47144 105 DRM_AUTH | DRM_RENDER_ALLOW),
6564c65f
JS
106 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP, exynos_drm_gem_map_ioctl,
107 DRM_AUTH | DRM_RENDER_ALLOW),
74f230d2 108 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, exynos_drm_gem_get_ioctl,
f8c47144 109 DRM_RENDER_ALLOW),
74f230d2 110 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, vidi_connection_ioctl,
f8c47144 111 DRM_AUTH),
74f230d2 112 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER, exynos_g2d_get_ver_ioctl,
f8c47144 113 DRM_AUTH | DRM_RENDER_ALLOW),
74f230d2 114 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST, exynos_g2d_set_cmdlist_ioctl,
f8c47144 115 DRM_AUTH | DRM_RENDER_ALLOW),
74f230d2 116 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, exynos_g2d_exec_ioctl,
f8c47144 117 DRM_AUTH | DRM_RENDER_ALLOW),
74f230d2 118 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY, exynos_drm_ipp_get_property,
f8c47144 119 DRM_AUTH | DRM_RENDER_ALLOW),
74f230d2 120 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY, exynos_drm_ipp_set_property,
f8c47144 121 DRM_AUTH | DRM_RENDER_ALLOW),
74f230d2 122 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF, exynos_drm_ipp_queue_buf,
f8c47144 123 DRM_AUTH | DRM_RENDER_ALLOW),
74f230d2 124 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL, exynos_drm_ipp_cmd_ctrl,
f8c47144 125 DRM_AUTH | DRM_RENDER_ALLOW),
1c248b7d
ID
126};
127
ac2bdf73
JS
128static const struct file_operations exynos_drm_driver_fops = {
129 .owner = THIS_MODULE,
130 .open = drm_open,
131 .mmap = exynos_drm_gem_mmap,
132 .poll = drm_poll,
133 .read = drm_read,
134 .unlocked_ioctl = drm_ioctl,
804d74ab 135 .compat_ioctl = drm_compat_ioctl,
ac2bdf73
JS
136 .release = drm_release,
137};
138
1c248b7d 139static struct drm_driver exynos_drm_driver = {
c8c38ccf 140 .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME
74f230d2 141 | DRIVER_ATOMIC | DRIVER_RENDER,
9084f7b8 142 .open = exynos_drm_open,
1c248b7d 143 .lastclose = exynos_drm_lastclose,
53ef299f 144 .postclose = exynos_drm_postclose,
201f9b97 145 .gem_free_object_unlocked = exynos_drm_gem_free_object,
1c248b7d
ID
146 .gem_vm_ops = &exynos_drm_gem_vm_ops,
147 .dumb_create = exynos_drm_gem_dumb_create,
b2df26c1
ID
148 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
149 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
01ed50dd
JS
150 .gem_prime_export = drm_gem_prime_export,
151 .gem_prime_import = drm_gem_prime_import,
152 .gem_prime_get_sg_table = exynos_drm_gem_prime_get_sg_table,
153 .gem_prime_import_sg_table = exynos_drm_gem_prime_import_sg_table,
154 .gem_prime_vmap = exynos_drm_gem_prime_vmap,
155 .gem_prime_vunmap = exynos_drm_gem_prime_vunmap,
5a0202f7 156 .gem_prime_mmap = exynos_drm_gem_prime_mmap,
1c248b7d 157 .ioctls = exynos_ioctls,
baa70943 158 .num_ioctls = ARRAY_SIZE(exynos_ioctls),
ac2bdf73 159 .fops = &exynos_drm_driver_fops,
1c248b7d
ID
160 .name = DRIVER_NAME,
161 .desc = DRIVER_DESC,
162 .date = DRIVER_DATE,
163 .major = DRIVER_MAJOR,
164 .minor = DRIVER_MINOR,
165};
166
af65c804 167#ifdef CONFIG_PM_SLEEP
082ca313 168static int exynos_drm_suspend(struct device *dev)
af65c804
SP
169{
170 struct drm_device *drm_dev = dev_get_drvdata(dev);
6e8edf8a 171 struct exynos_drm_private *private = drm_dev->dev_private;
af65c804 172
d50a1907 173 if (pm_runtime_suspended(dev) || !drm_dev)
af65c804
SP
174 return 0;
175
6e8edf8a
MS
176 drm_kms_helper_poll_disable(drm_dev);
177 exynos_drm_fbdev_suspend(drm_dev);
178 private->suspend_state = drm_atomic_helper_suspend(drm_dev);
179 if (IS_ERR(private->suspend_state)) {
180 exynos_drm_fbdev_resume(drm_dev);
181 drm_kms_helper_poll_enable(drm_dev);
182 return PTR_ERR(private->suspend_state);
082ca313 183 }
082ca313
AH
184
185 return 0;
af65c804
SP
186}
187
082ca313 188static int exynos_drm_resume(struct device *dev)
af65c804
SP
189{
190 struct drm_device *drm_dev = dev_get_drvdata(dev);
6e8edf8a 191 struct exynos_drm_private *private = drm_dev->dev_private;
af65c804 192
d50a1907 193 if (pm_runtime_suspended(dev) || !drm_dev)
af65c804
SP
194 return 0;
195
6e8edf8a
MS
196 drm_atomic_helper_resume(drm_dev, private->suspend_state);
197 exynos_drm_fbdev_resume(drm_dev);
198 drm_kms_helper_poll_enable(drm_dev);
082ca313
AH
199
200 return 0;
af65c804
SP
201}
202#endif
203
af65c804 204static const struct dev_pm_ops exynos_drm_pm_ops = {
082ca313 205 SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_suspend, exynos_drm_resume)
af65c804
SP
206};
207
86650408
AH
208/* forward declaration */
209static struct platform_driver exynos_drm_platform_driver;
f37cd5e8 210
a5fb26cd
MS
211struct exynos_drm_driver_info {
212 struct platform_driver *driver;
213 unsigned int flags;
214};
215
216#define DRM_COMPONENT_DRIVER BIT(0) /* supports component framework */
217#define DRM_VIRTUAL_DEVICE BIT(1) /* create virtual platform device */
f43c3596 218#define DRM_DMA_DEVICE BIT(2) /* can be used for dma allocations */
a5fb26cd
MS
219
220#define DRV_PTR(drv, cond) (IS_ENABLED(cond) ? &drv : NULL)
221
86650408
AH
222/*
223 * Connector drivers should not be placed before associated crtc drivers,
224 * because connector requires pipe number of its crtc during initialization.
225 */
a5fb26cd
MS
226static struct exynos_drm_driver_info exynos_drm_drivers[] = {
227 {
228 DRV_PTR(fimd_driver, CONFIG_DRM_EXYNOS_FIMD),
f43c3596 229 DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE
a5fb26cd
MS
230 }, {
231 DRV_PTR(exynos5433_decon_driver, CONFIG_DRM_EXYNOS5433_DECON),
f43c3596 232 DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE
a5fb26cd
MS
233 }, {
234 DRV_PTR(decon_driver, CONFIG_DRM_EXYNOS7_DECON),
f43c3596 235 DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE
a5fb26cd
MS
236 }, {
237 DRV_PTR(mixer_driver, CONFIG_DRM_EXYNOS_MIXER),
f43c3596 238 DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE
a5fb26cd
MS
239 }, {
240 DRV_PTR(mic_driver, CONFIG_DRM_EXYNOS_MIC),
241 DRM_COMPONENT_DRIVER
242 }, {
243 DRV_PTR(dp_driver, CONFIG_DRM_EXYNOS_DP),
244 DRM_COMPONENT_DRIVER
245 }, {
246 DRV_PTR(dsi_driver, CONFIG_DRM_EXYNOS_DSI),
247 DRM_COMPONENT_DRIVER
248 }, {
249 DRV_PTR(hdmi_driver, CONFIG_DRM_EXYNOS_HDMI),
250 DRM_COMPONENT_DRIVER
251 }, {
252 DRV_PTR(vidi_driver, CONFIG_DRM_EXYNOS_VIDI),
253 DRM_COMPONENT_DRIVER | DRM_VIRTUAL_DEVICE
254 }, {
255 DRV_PTR(g2d_driver, CONFIG_DRM_EXYNOS_G2D),
256 }, {
257 DRV_PTR(fimc_driver, CONFIG_DRM_EXYNOS_FIMC),
258 }, {
259 DRV_PTR(rotator_driver, CONFIG_DRM_EXYNOS_ROTATOR),
260 }, {
261 DRV_PTR(gsc_driver, CONFIG_DRM_EXYNOS_GSC),
262 }, {
263 DRV_PTR(ipp_driver, CONFIG_DRM_EXYNOS_IPP),
264 DRM_VIRTUAL_DEVICE
265 }, {
266 &exynos_drm_platform_driver,
267 DRM_VIRTUAL_DEVICE
268 }
86650408 269};
f37cd5e8 270
53c5558d 271static int compare_dev(struct device *dev, void *data)
f37cd5e8
ID
272{
273 return dev == (struct device *)data;
274}
275
53c5558d 276static struct component_match *exynos_drm_match_add(struct device *dev)
f37cd5e8 277{
53c5558d 278 struct component_match *match = NULL;
86650408 279 int i;
f37cd5e8 280
a5fb26cd
MS
281 for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
282 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
86650408 283 struct device *p = NULL, *d;
f7c2f36f 284
a5fb26cd
MS
285 if (!info->driver || !(info->flags & DRM_COMPONENT_DRIVER))
286 continue;
287
288 while ((d = bus_find_device(&platform_bus_type, p,
289 &info->driver->driver,
86650408
AH
290 (void *)platform_bus_type.match))) {
291 put_device(p);
292 component_match_add(dev, &match, compare_dev, d);
293 p = d;
df5225bc 294 }
86650408 295 put_device(p);
f37cd5e8
ID
296 }
297
86650408 298 return match ?: ERR_PTR(-ENODEV);
f37cd5e8
ID
299}
300
301static int exynos_drm_bind(struct device *dev)
302{
896bbc3e
LP
303 struct exynos_drm_private *private;
304 struct drm_encoder *encoder;
305 struct drm_device *drm;
306 unsigned int clone_mask;
307 int cnt, ret;
308
309 drm = drm_dev_alloc(&exynos_drm_driver, dev);
310 if (IS_ERR(drm))
311 return PTR_ERR(drm);
312
313 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
314 if (!private) {
315 ret = -ENOMEM;
316 goto err_free_drm;
317 }
318
319 init_waitqueue_head(&private->wait);
320 spin_lock_init(&private->lock);
321
322 dev_set_drvdata(dev, drm);
323 drm->dev_private = (void *)private;
324
325 /* the first real CRTC device is used for all dma mapping operations */
326 private->dma_dev = exynos_drm_get_dma_device();
327 if (!private->dma_dev) {
328 DRM_ERROR("no device found for DMA mapping operations.\n");
329 ret = -ENODEV;
330 goto err_free_private;
331 }
332 DRM_INFO("Exynos DRM: using %s device for DMA mapping operations\n",
333 dev_name(private->dma_dev));
334
335 /* create common IOMMU mapping for all devices attached to Exynos DRM */
336 ret = drm_create_iommu_mapping(drm);
337 if (ret < 0) {
338 DRM_ERROR("failed to create iommu mapping.\n");
339 goto err_free_private;
340 }
341
342 drm_mode_config_init(drm);
343
344 exynos_drm_mode_config_init(drm);
345
346 /* setup possible_clones. */
347 cnt = 0;
348 clone_mask = 0;
349 list_for_each_entry(encoder, &drm->mode_config.encoder_list, head)
350 clone_mask |= (1 << (cnt++));
351
352 list_for_each_entry(encoder, &drm->mode_config.encoder_list, head)
353 encoder->possible_clones = clone_mask;
354
355 /* Try to bind all sub drivers. */
356 ret = component_bind_all(drm->dev, drm);
357 if (ret)
358 goto err_mode_config_cleanup;
359
360 ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
361 if (ret)
362 goto err_unbind_all;
363
364 /* Probe non kms sub drivers and virtual display driver. */
365 ret = exynos_drm_device_subdrv_probe(drm);
366 if (ret)
991dca01 367 goto err_unbind_all;
896bbc3e
LP
368
369 drm_mode_config_reset(drm);
370
371 /*
372 * enable drm irq mode.
373 * - with irq_enabled = true, we can use the vblank feature.
374 *
375 * P.S. note that we wouldn't use drm irq handler but
376 * just specific driver own one instead because
377 * drm framework supports only one irq handler.
378 */
379 drm->irq_enabled = true;
380
381 /* init kms poll for handling hpd */
382 drm_kms_helper_poll_init(drm);
383
812fc6f2
TR
384 ret = exynos_drm_fbdev_init(drm);
385 if (ret)
386 goto err_cleanup_poll;
896bbc3e
LP
387
388 /* register the DRM device */
389 ret = drm_dev_register(drm, 0);
390 if (ret < 0)
391 goto err_cleanup_fbdev;
392
393 return 0;
394
395err_cleanup_fbdev:
396 exynos_drm_fbdev_fini(drm);
812fc6f2 397err_cleanup_poll:
896bbc3e
LP
398 drm_kms_helper_poll_fini(drm);
399 exynos_drm_device_subdrv_remove(drm);
896bbc3e
LP
400err_unbind_all:
401 component_unbind_all(drm->dev, drm);
402err_mode_config_cleanup:
403 drm_mode_config_cleanup(drm);
404 drm_release_iommu_mapping(drm);
405err_free_private:
406 kfree(private);
407err_free_drm:
408 drm_dev_unref(drm);
409
410 return ret;
f37cd5e8
ID
411}
412
413static void exynos_drm_unbind(struct device *dev)
414{
896bbc3e
LP
415 struct drm_device *drm = dev_get_drvdata(dev);
416
417 drm_dev_unregister(drm);
418
419 exynos_drm_device_subdrv_remove(drm);
420
421 exynos_drm_fbdev_fini(drm);
422 drm_kms_helper_poll_fini(drm);
423
424 component_unbind_all(drm->dev, drm);
425 drm_mode_config_cleanup(drm);
426 drm_release_iommu_mapping(drm);
427
428 kfree(drm->dev_private);
429 drm->dev_private = NULL;
430
431 drm_dev_unref(drm);
f37cd5e8
ID
432}
433
434static const struct component_master_ops exynos_drm_ops = {
f37cd5e8
ID
435 .bind = exynos_drm_bind,
436 .unbind = exynos_drm_unbind,
1c248b7d
ID
437};
438
417133e4
AH
439static int exynos_drm_platform_probe(struct platform_device *pdev)
440{
441 struct component_match *match;
442
443 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
417133e4
AH
444
445 match = exynos_drm_match_add(&pdev->dev);
446 if (IS_ERR(match))
447 return PTR_ERR(match);
448
449 return component_master_add_with_match(&pdev->dev, &exynos_drm_ops,
450 match);
451}
452
453static int exynos_drm_platform_remove(struct platform_device *pdev)
454{
455 component_master_del(&pdev->dev, &exynos_drm_ops);
456 return 0;
457}
458
459static struct platform_driver exynos_drm_platform_driver = {
460 .probe = exynos_drm_platform_probe,
461 .remove = exynos_drm_platform_remove,
462 .driver = {
463 .name = "exynos-drm",
464 .pm = &exynos_drm_pm_ops,
465 },
466};
467
f43c3596
MS
468static struct device *exynos_drm_get_dma_device(void)
469{
470 int i;
471
472 for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
473 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
474 struct device *dev;
475
476 if (!info->driver || !(info->flags & DRM_DMA_DEVICE))
477 continue;
478
479 while ((dev = bus_find_device(&platform_bus_type, NULL,
480 &info->driver->driver,
481 (void *)platform_bus_type.match))) {
482 put_device(dev);
483 return dev;
484 }
485 }
486 return NULL;
487}
488
417133e4 489static void exynos_drm_unregister_devices(void)
72390677 490{
a5fb26cd
MS
491 int i;
492
493 for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) {
494 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
495 struct device *dev;
25928a39 496
a5fb26cd
MS
497 if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE))
498 continue;
499
500 while ((dev = bus_find_device(&platform_bus_type, NULL,
501 &info->driver->driver,
502 (void *)platform_bus_type.match))) {
503 put_device(dev);
504 platform_device_unregister(to_platform_device(dev));
505 }
417133e4
AH
506 }
507}
7eb8f069 508
417133e4
AH
509static int exynos_drm_register_devices(void)
510{
a5fb26cd 511 struct platform_device *pdev;
417133e4
AH
512 int i;
513
a5fb26cd
MS
514 for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
515 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
417133e4 516
a5fb26cd 517 if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE))
417133e4 518 continue;
417133e4 519
a5fb26cd
MS
520 pdev = platform_device_register_simple(
521 info->driver->driver.name, -1, NULL, 0);
522 if (IS_ERR(pdev))
523 goto fail;
72390677 524 }
f37cd5e8 525
417133e4 526 return 0;
a5fb26cd
MS
527fail:
528 exynos_drm_unregister_devices();
529 return PTR_ERR(pdev);
1c248b7d
ID
530}
531
a5fb26cd 532static void exynos_drm_unregister_drivers(void)
1c248b7d 533{
a5fb26cd 534 int i;
417133e4 535
a5fb26cd
MS
536 for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) {
537 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
417133e4 538
a5fb26cd 539 if (!info->driver)
417133e4
AH
540 continue;
541
a5fb26cd 542 platform_driver_unregister(info->driver);
417133e4 543 }
f37cd5e8
ID
544}
545
a5fb26cd 546static int exynos_drm_register_drivers(void)
417133e4 547{
a5fb26cd 548 int i, ret;
417133e4 549
a5fb26cd
MS
550 for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
551 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
417133e4 552
a5fb26cd
MS
553 if (!info->driver)
554 continue;
417133e4 555
a5fb26cd
MS
556 ret = platform_driver_register(info->driver);
557 if (ret)
558 goto fail;
559 }
560 return 0;
561fail:
562 exynos_drm_unregister_drivers();
563 return ret;
417133e4
AH
564}
565
f37cd5e8
ID
566static int exynos_drm_init(void)
567{
e3b9e460 568 int ret;
f37cd5e8 569
417133e4
AH
570 ret = exynos_drm_register_devices();
571 if (ret)
572 return ret;
820687be 573
a5fb26cd 574 ret = exynos_drm_register_drivers();
417133e4
AH
575 if (ret)
576 goto err_unregister_pdevs;
f37cd5e8 577
f37cd5e8
ID
578 return 0;
579
417133e4
AH
580err_unregister_pdevs:
581 exynos_drm_unregister_devices();
f37cd5e8
ID
582
583 return ret;
584}
585
586static void exynos_drm_exit(void)
587{
a5fb26cd 588 exynos_drm_unregister_drivers();
417133e4 589 exynos_drm_unregister_devices();
1c248b7d
ID
590}
591
592module_init(exynos_drm_init);
593module_exit(exynos_drm_exit);
594
595MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
596MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
597MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
598MODULE_DESCRIPTION("Samsung SoC DRM Driver");
599MODULE_LICENSE("GPL");