blob: 88dae6b012b3a25829f723e6ad1343b9c8c01338 [file] [log] [blame]
Inki Daeb73d1232012-03-21 10:55:26 +09001/* exynos_drm_vidi.c
2 *
3 * Copyright (C) 2012 Samsung Electronics Co.Ltd
4 * Authors:
5 * Inki Dae <inki.dae@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 */
13#include "drmP.h"
14
15#include <linux/kernel.h>
16#include <linux/module.h>
17#include <linux/platform_device.h>
18
19#include <drm/exynos_drm.h>
20
21#include "drm_edid.h"
22#include "drm_crtc_helper.h"
23
24#include "exynos_drm_drv.h"
25#include "exynos_drm_crtc.h"
26#include "exynos_drm_encoder.h"
27
28/* vidi has totally three virtual windows. */
29#define WINDOWS_NR 3
30
31#define get_vidi_context(dev) platform_get_drvdata(to_platform_device(dev))
32
33struct vidi_win_data {
34 unsigned int offset_x;
35 unsigned int offset_y;
36 unsigned int ovl_width;
37 unsigned int ovl_height;
38 unsigned int fb_width;
39 unsigned int fb_height;
40 unsigned int bpp;
41 dma_addr_t dma_addr;
42 void __iomem *vaddr;
43 unsigned int buf_offsize;
44 unsigned int line_size; /* bytes */
45 bool enabled;
46};
47
48struct vidi_context {
49 struct exynos_drm_subdrv subdrv;
50 struct drm_crtc *crtc;
51 struct vidi_win_data win_data[WINDOWS_NR];
52 struct edid *raw_edid;
53 unsigned int clkdiv;
54 unsigned int default_win;
55 unsigned long irq_flags;
56 unsigned int connected;
57 bool vblank_on;
58 bool suspended;
59 struct work_struct work;
60 struct mutex lock;
61};
62
63static const char fake_edid_info[] = {
64 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x4c, 0x2d, 0x05, 0x05,
65 0x00, 0x00, 0x00, 0x00, 0x30, 0x12, 0x01, 0x03, 0x80, 0x10, 0x09, 0x78,
66 0x0a, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0xbd,
67 0xee, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
68 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xb0, 0x51, 0x00,
69 0x1b, 0x30, 0x40, 0x70, 0x36, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e,
70 0x01, 0x1d, 0x00, 0x72, 0x51, 0xd0, 0x1e, 0x20, 0x6e, 0x28, 0x55, 0x00,
71 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18,
72 0x4b, 0x1a, 0x44, 0x17, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
73 0x00, 0x00, 0x00, 0xfc, 0x00, 0x53, 0x41, 0x4d, 0x53, 0x55, 0x4e, 0x47,
74 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xbc, 0x02, 0x03, 0x1e, 0xf1,
75 0x46, 0x84, 0x05, 0x03, 0x10, 0x20, 0x22, 0x23, 0x09, 0x07, 0x07, 0x83,
76 0x01, 0x00, 0x00, 0xe2, 0x00, 0x0f, 0x67, 0x03, 0x0c, 0x00, 0x10, 0x00,
77 0xb8, 0x2d, 0x01, 0x1d, 0x80, 0x18, 0x71, 0x1c, 0x16, 0x20, 0x58, 0x2c,
78 0x25, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x9e, 0x8c, 0x0a, 0xd0, 0x8a,
79 0x20, 0xe0, 0x2d, 0x10, 0x10, 0x3e, 0x96, 0x00, 0xa0, 0x5a, 0x00, 0x00,
80 0x00, 0x18, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c,
81 0x45, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00,
82 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
83 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
84 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
85 0x00, 0x00, 0x00, 0x06
86};
87
Inki Daeb73d1232012-03-21 10:55:26 +090088static bool vidi_display_is_connected(struct device *dev)
89{
90 struct vidi_context *ctx = get_vidi_context(dev);
91
92 DRM_DEBUG_KMS("%s\n", __FILE__);
93
94 /*
95 * connection request would come from user side
96 * to do hotplug through specific ioctl.
97 */
98 return ctx->connected ? true : false;
99}
100
101static int vidi_get_edid(struct device *dev, struct drm_connector *connector,
102 u8 *edid, int len)
103{
104 struct vidi_context *ctx = get_vidi_context(dev);
105 struct edid *raw_edid;
106
107 DRM_DEBUG_KMS("%s\n", __FILE__);
108
109 /*
110 * the edid data comes from user side and it would be set
111 * to ctx->raw_edid through specific ioctl.
112 */
113 if (!ctx->raw_edid) {
114 DRM_DEBUG_KMS("raw_edid is null.\n");
115 return -EFAULT;
116 }
117
118 raw_edid = kzalloc(len, GFP_KERNEL);
119 if (!raw_edid) {
120 DRM_DEBUG_KMS("failed to allocate raw_edid.\n");
121 return -ENOMEM;
122 }
123
124 memcpy(raw_edid, ctx->raw_edid, min((1 + ctx->raw_edid->extensions)
125 * EDID_LENGTH, len));
126
127 /* attach the edid data to connector. */
128 connector->display_info.raw_edid = (char *)raw_edid;
129
130 memcpy(edid, ctx->raw_edid, min((1 + ctx->raw_edid->extensions)
131 * EDID_LENGTH, len));
132
133 return 0;
134}
135
136static void *vidi_get_panel(struct device *dev)
137{
138 DRM_DEBUG_KMS("%s\n", __FILE__);
139
140 /* TODO. */
141
142 return NULL;
143}
144
145static int vidi_check_timing(struct device *dev, void *timing)
146{
147 DRM_DEBUG_KMS("%s\n", __FILE__);
148
149 /* TODO. */
150
151 return 0;
152}
153
154static int vidi_display_power_on(struct device *dev, int mode)
155{
156 DRM_DEBUG_KMS("%s\n", __FILE__);
157
158 /* TODO */
159
160 return 0;
161}
162
163static struct exynos_drm_display_ops vidi_display_ops = {
164 .type = EXYNOS_DISPLAY_TYPE_VIDI,
165 .is_connected = vidi_display_is_connected,
166 .get_edid = vidi_get_edid,
167 .get_panel = vidi_get_panel,
168 .check_timing = vidi_check_timing,
169 .power_on = vidi_display_power_on,
170};
171
172static void vidi_dpms(struct device *subdrv_dev, int mode)
173{
174 struct vidi_context *ctx = get_vidi_context(subdrv_dev);
175
176 DRM_DEBUG_KMS("%s, %d\n", __FILE__, mode);
177
178 mutex_lock(&ctx->lock);
179
180 switch (mode) {
181 case DRM_MODE_DPMS_ON:
182 /* TODO. */
183 break;
184 case DRM_MODE_DPMS_STANDBY:
185 case DRM_MODE_DPMS_SUSPEND:
186 case DRM_MODE_DPMS_OFF:
187 /* TODO. */
188 break;
189 default:
190 DRM_DEBUG_KMS("unspecified mode %d\n", mode);
191 break;
192 }
193
194 mutex_unlock(&ctx->lock);
195}
196
197static void vidi_apply(struct device *subdrv_dev)
198{
199 struct vidi_context *ctx = get_vidi_context(subdrv_dev);
Joonyoung Shim677e84c2012-04-05 20:49:27 +0900200 struct exynos_drm_manager *mgr = ctx->subdrv.manager;
Inki Daeb73d1232012-03-21 10:55:26 +0900201 struct exynos_drm_manager_ops *mgr_ops = mgr->ops;
202 struct exynos_drm_overlay_ops *ovl_ops = mgr->overlay_ops;
203 struct vidi_win_data *win_data;
204 int i;
205
206 DRM_DEBUG_KMS("%s\n", __FILE__);
207
208 for (i = 0; i < WINDOWS_NR; i++) {
209 win_data = &ctx->win_data[i];
210 if (win_data->enabled && (ovl_ops && ovl_ops->commit))
211 ovl_ops->commit(subdrv_dev, i);
212 }
213
214 if (mgr_ops && mgr_ops->commit)
215 mgr_ops->commit(subdrv_dev);
216}
217
218static void vidi_commit(struct device *dev)
219{
220 struct vidi_context *ctx = get_vidi_context(dev);
221
222 DRM_DEBUG_KMS("%s\n", __FILE__);
223
224 if (ctx->suspended)
225 return;
226}
227
228static int vidi_enable_vblank(struct device *dev)
229{
230 struct vidi_context *ctx = get_vidi_context(dev);
231
232 DRM_DEBUG_KMS("%s\n", __FILE__);
233
234 if (ctx->suspended)
235 return -EPERM;
236
237 if (!test_and_set_bit(0, &ctx->irq_flags))
238 ctx->vblank_on = true;
239
240 return 0;
241}
242
243static void vidi_disable_vblank(struct device *dev)
244{
245 struct vidi_context *ctx = get_vidi_context(dev);
246
247 DRM_DEBUG_KMS("%s\n", __FILE__);
248
249 if (ctx->suspended)
250 return;
251
252 if (test_and_clear_bit(0, &ctx->irq_flags))
253 ctx->vblank_on = false;
254}
255
256static struct exynos_drm_manager_ops vidi_manager_ops = {
257 .dpms = vidi_dpms,
258 .apply = vidi_apply,
259 .commit = vidi_commit,
260 .enable_vblank = vidi_enable_vblank,
261 .disable_vblank = vidi_disable_vblank,
262};
263
264static void vidi_win_mode_set(struct device *dev,
265 struct exynos_drm_overlay *overlay)
266{
267 struct vidi_context *ctx = get_vidi_context(dev);
268 struct vidi_win_data *win_data;
269 int win;
270 unsigned long offset;
271
272 DRM_DEBUG_KMS("%s\n", __FILE__);
273
274 if (!overlay) {
275 dev_err(dev, "overlay is NULL\n");
276 return;
277 }
278
279 win = overlay->zpos;
280 if (win == DEFAULT_ZPOS)
281 win = ctx->default_win;
282
283 if (win < 0 || win > WINDOWS_NR)
284 return;
285
286 offset = overlay->fb_x * (overlay->bpp >> 3);
287 offset += overlay->fb_y * overlay->pitch;
288
289 DRM_DEBUG_KMS("offset = 0x%lx, pitch = %x\n", offset, overlay->pitch);
290
291 win_data = &ctx->win_data[win];
292
293 win_data->offset_x = overlay->crtc_x;
294 win_data->offset_y = overlay->crtc_y;
295 win_data->ovl_width = overlay->crtc_width;
296 win_data->ovl_height = overlay->crtc_height;
297 win_data->fb_width = overlay->fb_width;
298 win_data->fb_height = overlay->fb_height;
299 win_data->dma_addr = overlay->dma_addr[0] + offset;
300 win_data->vaddr = overlay->vaddr[0] + offset;
301 win_data->bpp = overlay->bpp;
302 win_data->buf_offsize = (overlay->fb_width - overlay->crtc_width) *
303 (overlay->bpp >> 3);
304 win_data->line_size = overlay->crtc_width * (overlay->bpp >> 3);
305
306 /*
307 * some parts of win_data should be transferred to user side
308 * through specific ioctl.
309 */
310
311 DRM_DEBUG_KMS("offset_x = %d, offset_y = %d\n",
312 win_data->offset_x, win_data->offset_y);
313 DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n",
314 win_data->ovl_width, win_data->ovl_height);
315 DRM_DEBUG_KMS("paddr = 0x%lx, vaddr = 0x%lx\n",
316 (unsigned long)win_data->dma_addr,
317 (unsigned long)win_data->vaddr);
318 DRM_DEBUG_KMS("fb_width = %d, crtc_width = %d\n",
319 overlay->fb_width, overlay->crtc_width);
320}
321
322static void vidi_win_commit(struct device *dev, int zpos)
323{
324 struct vidi_context *ctx = get_vidi_context(dev);
325 struct vidi_win_data *win_data;
326 int win = zpos;
327
328 DRM_DEBUG_KMS("%s\n", __FILE__);
329
330 if (ctx->suspended)
331 return;
332
333 if (win == DEFAULT_ZPOS)
334 win = ctx->default_win;
335
336 if (win < 0 || win > WINDOWS_NR)
337 return;
338
339 win_data = &ctx->win_data[win];
340
341 win_data->enabled = true;
342
343 DRM_DEBUG_KMS("dma_addr = 0x%x\n", win_data->dma_addr);
344
345 if (ctx->vblank_on)
346 schedule_work(&ctx->work);
347}
348
349static void vidi_win_disable(struct device *dev, int zpos)
350{
351 struct vidi_context *ctx = get_vidi_context(dev);
352 struct vidi_win_data *win_data;
353 int win = zpos;
354
355 DRM_DEBUG_KMS("%s\n", __FILE__);
356
357 if (win == DEFAULT_ZPOS)
358 win = ctx->default_win;
359
360 if (win < 0 || win > WINDOWS_NR)
361 return;
362
363 win_data = &ctx->win_data[win];
364 win_data->enabled = false;
365
366 /* TODO. */
367}
368
369static struct exynos_drm_overlay_ops vidi_overlay_ops = {
370 .mode_set = vidi_win_mode_set,
371 .commit = vidi_win_commit,
372 .disable = vidi_win_disable,
373};
374
Joonyoung Shim677e84c2012-04-05 20:49:27 +0900375static struct exynos_drm_manager vidi_manager = {
376 .pipe = -1,
377 .ops = &vidi_manager_ops,
378 .overlay_ops = &vidi_overlay_ops,
379 .display_ops = &vidi_display_ops,
380};
381
Inki Daeb73d1232012-03-21 10:55:26 +0900382static void vidi_finish_pageflip(struct drm_device *drm_dev, int crtc)
383{
384 struct exynos_drm_private *dev_priv = drm_dev->dev_private;
385 struct drm_pending_vblank_event *e, *t;
386 struct timeval now;
387 unsigned long flags;
388 bool is_checked = false;
389
390 spin_lock_irqsave(&drm_dev->event_lock, flags);
391
392 list_for_each_entry_safe(e, t, &dev_priv->pageflip_event_list,
393 base.link) {
394 /* if event's pipe isn't same as crtc then ignore it. */
395 if (crtc != e->pipe)
396 continue;
397
398 is_checked = true;
399
400 do_gettimeofday(&now);
401 e->event.sequence = 0;
402 e->event.tv_sec = now.tv_sec;
403 e->event.tv_usec = now.tv_usec;
404
405 list_move_tail(&e->base.link, &e->base.file_priv->event_list);
406 wake_up_interruptible(&e->base.file_priv->event_wait);
407 }
408
409 if (is_checked) {
410 /*
411 * call drm_vblank_put only in case that drm_vblank_get was
412 * called.
413 */
414 if (atomic_read(&drm_dev->vblank_refcount[crtc]) > 0)
415 drm_vblank_put(drm_dev, crtc);
416
417 /*
418 * don't off vblank if vblank_disable_allowed is 1,
419 * because vblank would be off by timer handler.
420 */
421 if (!drm_dev->vblank_disable_allowed)
422 drm_vblank_off(drm_dev, crtc);
423 }
424
425 spin_unlock_irqrestore(&drm_dev->event_lock, flags);
426}
427
428static void vidi_fake_vblank_handler(struct work_struct *work)
429{
430 struct vidi_context *ctx = container_of(work, struct vidi_context,
431 work);
432 struct exynos_drm_subdrv *subdrv = &ctx->subdrv;
Joonyoung Shim677e84c2012-04-05 20:49:27 +0900433 struct exynos_drm_manager *manager = subdrv->manager;
Inki Daeb73d1232012-03-21 10:55:26 +0900434
435 if (manager->pipe < 0)
436 return;
437
438 /* refresh rate is about 50Hz. */
439 usleep_range(16000, 20000);
440
441 drm_handle_vblank(subdrv->drm_dev, manager->pipe);
442 vidi_finish_pageflip(subdrv->drm_dev, manager->pipe);
443}
444
445static int vidi_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
446{
447 DRM_DEBUG_KMS("%s\n", __FILE__);
448
449 /*
450 * enable drm irq mode.
451 * - with irq_enabled = 1, we can use the vblank feature.
452 *
453 * P.S. note that we wouldn't use drm irq handler but
454 * just specific driver own one instead because
455 * drm framework supports only one irq handler.
456 */
457 drm_dev->irq_enabled = 1;
458
459 /*
460 * with vblank_disable_allowed = 1, vblank interrupt will be disabled
461 * by drm timer once a current process gives up ownership of
462 * vblank event.(after drm_vblank_put function is called)
463 */
464 drm_dev->vblank_disable_allowed = 1;
465
466 return 0;
467}
468
469static void vidi_subdrv_remove(struct drm_device *drm_dev)
470{
471 DRM_DEBUG_KMS("%s\n", __FILE__);
472
473 /* TODO. */
474}
475
476static int vidi_power_on(struct vidi_context *ctx, bool enable)
477{
478 struct exynos_drm_subdrv *subdrv = &ctx->subdrv;
Joonyoung Shim677e84c2012-04-05 20:49:27 +0900479 struct device *dev = subdrv->dev;
Inki Daeb73d1232012-03-21 10:55:26 +0900480
481 DRM_DEBUG_KMS("%s\n", __FILE__);
482
483 if (enable != false && enable != true)
484 return -EINVAL;
485
486 if (enable) {
487 ctx->suspended = false;
488
489 /* if vblank was enabled status, enable it again. */
490 if (test_and_clear_bit(0, &ctx->irq_flags))
491 vidi_enable_vblank(dev);
492
493 vidi_apply(dev);
494 } else {
495 ctx->suspended = true;
496 }
497
498 return 0;
499}
500
501static int vidi_show_connection(struct device *dev,
502 struct device_attribute *attr, char *buf)
503{
504 int rc;
505 struct vidi_context *ctx = get_vidi_context(dev);
506
507 mutex_lock(&ctx->lock);
508
509 rc = sprintf(buf, "%d\n", ctx->connected);
510
511 mutex_unlock(&ctx->lock);
512
513 return rc;
514}
515
516static int vidi_store_connection(struct device *dev,
517 struct device_attribute *attr,
518 const char *buf, size_t len)
519{
520 struct vidi_context *ctx = get_vidi_context(dev);
521 int ret;
522
523 DRM_DEBUG_KMS("%s\n", __FILE__);
524
525 ret = kstrtoint(buf, 0, &ctx->connected);
526 if (ret)
527 return ret;
528
529 if (ctx->connected > 1)
530 return -EINVAL;
531
Inki Daed07d39d2012-06-27 16:00:56 +0900532 /* use fake edid data for test. */
533 if (!ctx->raw_edid)
534 ctx->raw_edid = (struct edid *)fake_edid_info;
535
Inki Daeb73d1232012-03-21 10:55:26 +0900536 DRM_DEBUG_KMS("requested connection.\n");
537
538 drm_helper_hpd_irq_event(ctx->subdrv.drm_dev);
539
540 return len;
541}
542
543static DEVICE_ATTR(connection, 0644, vidi_show_connection,
544 vidi_store_connection);
545
546int vidi_connection_ioctl(struct drm_device *drm_dev, void *data,
547 struct drm_file *file_priv)
548{
549 struct vidi_context *ctx = NULL;
550 struct drm_encoder *encoder;
551 struct exynos_drm_manager *manager;
552 struct exynos_drm_display_ops *display_ops;
553 struct drm_exynos_vidi_connection *vidi = data;
554
555 DRM_DEBUG_KMS("%s\n", __FILE__);
556
557 if (!vidi) {
558 DRM_DEBUG_KMS("user data for vidi is null.\n");
559 return -EINVAL;
560 }
561
562 if (!vidi->edid) {
563 DRM_DEBUG_KMS("edid data is null.\n");
564 return -EINVAL;
565 }
566
567 if (vidi->connection > 1) {
568 DRM_DEBUG_KMS("connection should be 0 or 1.\n");
569 return -EINVAL;
570 }
571
572 list_for_each_entry(encoder, &drm_dev->mode_config.encoder_list,
573 head) {
574 manager = exynos_drm_get_manager(encoder);
575 display_ops = manager->display_ops;
576
577 if (display_ops->type == EXYNOS_DISPLAY_TYPE_VIDI) {
578 ctx = get_vidi_context(manager->dev);
579 break;
580 }
581 }
582
583 if (!ctx) {
584 DRM_DEBUG_KMS("not found virtual device type encoder.\n");
585 return -EINVAL;
586 }
587
588 if (ctx->connected == vidi->connection) {
589 DRM_DEBUG_KMS("same connection request.\n");
590 return -EINVAL;
591 }
592
593 if (vidi->connection)
594 ctx->raw_edid = (struct edid *)vidi->edid;
595
596 ctx->connected = vidi->connection;
597 drm_helper_hpd_irq_event(ctx->subdrv.drm_dev);
598
599 return 0;
600}
601
602static int __devinit vidi_probe(struct platform_device *pdev)
603{
604 struct device *dev = &pdev->dev;
605 struct vidi_context *ctx;
606 struct exynos_drm_subdrv *subdrv;
607 int ret;
608
609 DRM_DEBUG_KMS("%s\n", __FILE__);
610
611 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
612 if (!ctx)
613 return -ENOMEM;
614
615 ctx->default_win = 0;
616
617 INIT_WORK(&ctx->work, vidi_fake_vblank_handler);
618
Inki Daeb73d1232012-03-21 10:55:26 +0900619 subdrv = &ctx->subdrv;
Joonyoung Shim677e84c2012-04-05 20:49:27 +0900620 subdrv->dev = dev;
621 subdrv->manager = &vidi_manager;
Inki Daeb73d1232012-03-21 10:55:26 +0900622 subdrv->probe = vidi_subdrv_probe;
623 subdrv->remove = vidi_subdrv_remove;
Inki Daeb73d1232012-03-21 10:55:26 +0900624
625 mutex_init(&ctx->lock);
626
627 platform_set_drvdata(pdev, ctx);
628
629 ret = device_create_file(&pdev->dev, &dev_attr_connection);
630 if (ret < 0)
631 DRM_INFO("failed to create connection sysfs.\n");
632
633 exynos_drm_subdrv_register(subdrv);
634
635 return 0;
636}
637
638static int __devexit vidi_remove(struct platform_device *pdev)
639{
640 struct vidi_context *ctx = platform_get_drvdata(pdev);
641
642 DRM_DEBUG_KMS("%s\n", __FILE__);
643
644 exynos_drm_subdrv_unregister(&ctx->subdrv);
645
646 kfree(ctx);
647
648 return 0;
649}
650
651#ifdef CONFIG_PM_SLEEP
652static int vidi_suspend(struct device *dev)
653{
654 struct vidi_context *ctx = get_vidi_context(dev);
655
656 return vidi_power_on(ctx, false);
657}
658
659static int vidi_resume(struct device *dev)
660{
661 struct vidi_context *ctx = get_vidi_context(dev);
662
663 return vidi_power_on(ctx, true);
664}
665#endif
666
667static const struct dev_pm_ops vidi_pm_ops = {
668 SET_SYSTEM_SLEEP_PM_OPS(vidi_suspend, vidi_resume)
669};
670
671struct platform_driver vidi_driver = {
672 .probe = vidi_probe,
673 .remove = __devexit_p(vidi_remove),
674 .driver = {
675 .name = "exynos-drm-vidi",
676 .owner = THIS_MODULE,
677 .pm = &vidi_pm_ops,
678 },
679};