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9#include <linux/bug.h>
10#include <linux/clk.h>
11#include <linux/clk-provider.h>
12#include <linux/device.h>
13#include <linux/errno.h>
14#include <linux/i2c.h>
15#include <linux/kernel.h>
16#include <linux/list.h>
17#include <linux/module.h>
18#include <linux/of.h>
19#include <linux/of_platform.h>
20#include <linux/of_device.h>
21#include <linux/of_graph.h>
22#include <linux/pinctrl/consumer.h>
23#include <linux/platform_device.h>
24#include <linux/pm_runtime.h>
25#include <linux/types.h>
26#include <linux/slab.h>
27#include <media/v4l2-async.h>
28#include <media/v4l2-ctrls.h>
29#include <media/v4l2-fwnode.h>
30#include <media/media-device.h>
31#include <media/drv-intf/exynos-fimc.h>
32
33#include "media-dev.h"
34#include "fimc-core.h"
35#include "fimc-is.h"
36#include "fimc-lite.h"
37#include "mipi-csis.h"
38
39
40static void __setup_sensor_notification(struct fimc_md *fmd,
41 struct v4l2_subdev *sensor,
42 struct v4l2_subdev *fimc_sd)
43{
44 struct fimc_source_info *src_inf;
45 struct fimc_sensor_info *md_si;
46 unsigned long flags;
47
48 src_inf = v4l2_get_subdev_hostdata(sensor);
49 if (!src_inf || WARN_ON(fmd == NULL))
50 return;
51
52 md_si = source_to_sensor_info(src_inf);
53 spin_lock_irqsave(&fmd->slock, flags);
54 md_si->host = v4l2_get_subdevdata(fimc_sd);
55 spin_unlock_irqrestore(&fmd->slock, flags);
56}
57
58
59
60
61
62
63
64
65static void fimc_pipeline_prepare(struct fimc_pipeline *p,
66 struct media_entity *me)
67{
68 struct fimc_md *fmd = entity_to_fimc_mdev(me);
69 struct v4l2_subdev *sd;
70 struct v4l2_subdev *sensor = NULL;
71 int i;
72
73 for (i = 0; i < IDX_MAX; i++)
74 p->subdevs[i] = NULL;
75
76 while (1) {
77 struct media_pad *pad = NULL;
78
79
80 for (i = 0; i < me->num_pads; i++) {
81 struct media_pad *spad = &me->pads[i];
82 if (!(spad->flags & MEDIA_PAD_FL_SINK))
83 continue;
84 pad = media_entity_remote_pad(spad);
85 if (pad)
86 break;
87 }
88
89 if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
90 break;
91 sd = media_entity_to_v4l2_subdev(pad->entity);
92
93 switch (sd->grp_id) {
94 case GRP_ID_SENSOR:
95 sensor = sd;
96 fallthrough;
97 case GRP_ID_FIMC_IS_SENSOR:
98 p->subdevs[IDX_SENSOR] = sd;
99 break;
100 case GRP_ID_CSIS:
101 p->subdevs[IDX_CSIS] = sd;
102 break;
103 case GRP_ID_FLITE:
104 p->subdevs[IDX_FLITE] = sd;
105 break;
106 case GRP_ID_FIMC:
107 p->subdevs[IDX_FIMC] = sd;
108 break;
109 case GRP_ID_FIMC_IS:
110 p->subdevs[IDX_IS_ISP] = sd;
111 break;
112 default:
113 break;
114 }
115 me = &sd->entity;
116 if (me->num_pads == 1)
117 break;
118 }
119
120 if (sensor && p->subdevs[IDX_FIMC])
121 __setup_sensor_notification(fmd, sensor, p->subdevs[IDX_FIMC]);
122}
123
124
125
126
127
128
129
130
131
132static int __subdev_set_power(struct v4l2_subdev *sd, int on)
133{
134 int *use_count;
135 int ret;
136
137 if (sd == NULL)
138 return -ENXIO;
139
140 use_count = &sd->entity.use_count;
141 if (on && (*use_count)++ > 0)
142 return 0;
143 else if (!on && (*use_count == 0 || --(*use_count) > 0))
144 return 0;
145 ret = v4l2_subdev_call(sd, core, s_power, on);
146
147 return ret != -ENOIOCTLCMD ? ret : 0;
148}
149
150
151
152
153
154
155
156
157static int fimc_pipeline_s_power(struct fimc_pipeline *p, bool on)
158{
159 static const u8 seq[2][IDX_MAX - 1] = {
160 { IDX_IS_ISP, IDX_SENSOR, IDX_CSIS, IDX_FLITE },
161 { IDX_CSIS, IDX_FLITE, IDX_SENSOR, IDX_IS_ISP },
162 };
163 int i, ret = 0;
164
165 if (p->subdevs[IDX_SENSOR] == NULL)
166 return -ENXIO;
167
168 for (i = 0; i < IDX_MAX - 1; i++) {
169 unsigned int idx = seq[on][i];
170
171 ret = __subdev_set_power(p->subdevs[idx], on);
172
173
174 if (ret < 0 && ret != -ENXIO)
175 goto error;
176 }
177 return 0;
178error:
179 for (; i >= 0; i--) {
180 unsigned int idx = seq[on][i];
181 __subdev_set_power(p->subdevs[idx], !on);
182 }
183 return ret;
184}
185
186
187
188
189
190
191
192
193
194static int __fimc_pipeline_enable(struct exynos_media_pipeline *ep,
195 struct fimc_md *fmd)
196{
197 struct fimc_pipeline *p = to_fimc_pipeline(ep);
198 int ret;
199
200
201 if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) {
202 ret = clk_prepare_enable(fmd->wbclk[CLK_IDX_WB_B]);
203 if (ret < 0)
204 return ret;
205 }
206
207 ret = fimc_pipeline_s_power(p, 1);
208 if (!ret)
209 return 0;
210
211 if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP])
212 clk_disable_unprepare(fmd->wbclk[CLK_IDX_WB_B]);
213
214 return ret;
215}
216
217
218
219
220
221
222
223
224
225
226static int __fimc_pipeline_open(struct exynos_media_pipeline *ep,
227 struct media_entity *me, bool prepare)
228{
229 struct fimc_md *fmd = entity_to_fimc_mdev(me);
230 struct fimc_pipeline *p = to_fimc_pipeline(ep);
231 struct v4l2_subdev *sd;
232
233 if (WARN_ON(p == NULL || me == NULL))
234 return -EINVAL;
235
236 if (prepare)
237 fimc_pipeline_prepare(p, me);
238
239 sd = p->subdevs[IDX_SENSOR];
240 if (sd == NULL) {
241 pr_warn("%s(): No sensor subdev\n", __func__);
242
243
244
245
246 return 0;
247 }
248
249 return __fimc_pipeline_enable(ep, fmd);
250}
251
252
253
254
255
256
257
258static int __fimc_pipeline_close(struct exynos_media_pipeline *ep)
259{
260 struct fimc_pipeline *p = to_fimc_pipeline(ep);
261 struct v4l2_subdev *sd = p ? p->subdevs[IDX_SENSOR] : NULL;
262 struct fimc_md *fmd;
263 int ret;
264
265 if (sd == NULL) {
266 pr_warn("%s(): No sensor subdev\n", __func__);
267 return 0;
268 }
269
270 ret = fimc_pipeline_s_power(p, 0);
271
272 fmd = entity_to_fimc_mdev(&sd->entity);
273
274
275 if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP])
276 clk_disable_unprepare(fmd->wbclk[CLK_IDX_WB_B]);
277
278 return ret == -ENXIO ? 0 : ret;
279}
280
281
282
283
284
285
286static int __fimc_pipeline_s_stream(struct exynos_media_pipeline *ep, bool on)
287{
288 static const u8 seq[2][IDX_MAX] = {
289 { IDX_FIMC, IDX_SENSOR, IDX_IS_ISP, IDX_CSIS, IDX_FLITE },
290 { IDX_CSIS, IDX_FLITE, IDX_FIMC, IDX_SENSOR, IDX_IS_ISP },
291 };
292 struct fimc_pipeline *p = to_fimc_pipeline(ep);
293 enum fimc_subdev_index sd_id;
294 int i, ret = 0;
295
296 if (p->subdevs[IDX_SENSOR] == NULL) {
297 struct fimc_md *fmd;
298 struct v4l2_subdev *sd = p->subdevs[IDX_CSIS];
299
300 if (!sd)
301 sd = p->subdevs[IDX_FIMC];
302
303 if (!sd) {
304
305
306
307
308 return -ENODEV;
309 }
310
311 fmd = entity_to_fimc_mdev(&sd->entity);
312
313 if (!fmd->user_subdev_api) {
314
315
316
317
318 return -ENODEV;
319 }
320
321
322 if (p->subdevs[IDX_FIMC])
323 sd_id = IDX_FIMC;
324 else if (p->subdevs[IDX_IS_ISP])
325 sd_id = IDX_IS_ISP;
326 else if (p->subdevs[IDX_FLITE])
327 sd_id = IDX_FLITE;
328 else
329 return -ENODEV;
330
331
332
333
334
335 fimc_pipeline_prepare(p, &p->subdevs[sd_id]->entity);
336
337 if (p->subdevs[IDX_SENSOR] == NULL)
338 return -ENODEV;
339
340 ret = __fimc_pipeline_enable(ep, fmd);
341 if (ret < 0)
342 return ret;
343
344 }
345
346 for (i = 0; i < IDX_MAX; i++) {
347 unsigned int idx = seq[on][i];
348
349 ret = v4l2_subdev_call(p->subdevs[idx], video, s_stream, on);
350
351 if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
352 goto error;
353 }
354
355 return 0;
356error:
357 fimc_pipeline_s_power(p, !on);
358 for (; i >= 0; i--) {
359 unsigned int idx = seq[on][i];
360 v4l2_subdev_call(p->subdevs[idx], video, s_stream, !on);
361 }
362 return ret;
363}
364
365
366static const struct exynos_media_pipeline_ops fimc_pipeline_ops = {
367 .open = __fimc_pipeline_open,
368 .close = __fimc_pipeline_close,
369 .set_stream = __fimc_pipeline_s_stream,
370};
371
372static struct exynos_media_pipeline *fimc_md_pipeline_create(
373 struct fimc_md *fmd)
374{
375 struct fimc_pipeline *p;
376
377 p = kzalloc(sizeof(*p), GFP_KERNEL);
378 if (!p)
379 return NULL;
380
381 list_add_tail(&p->list, &fmd->pipelines);
382
383 p->ep.ops = &fimc_pipeline_ops;
384 return &p->ep;
385}
386
387static void fimc_md_pipelines_free(struct fimc_md *fmd)
388{
389 while (!list_empty(&fmd->pipelines)) {
390 struct fimc_pipeline *p;
391
392 p = list_entry(fmd->pipelines.next, typeof(*p), list);
393 list_del(&p->list);
394 kfree(p);
395 }
396}
397
398static int fimc_md_parse_one_endpoint(struct fimc_md *fmd,
399 struct device_node *ep)
400{
401 int index = fmd->num_sensors;
402 struct fimc_source_info *pd = &fmd->sensor[index].pdata;
403 struct device_node *rem, *np;
404 struct v4l2_async_subdev *asd;
405 struct v4l2_fwnode_endpoint endpoint = { .bus_type = 0 };
406 int ret;
407
408 ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &endpoint);
409 if (ret) {
410 of_node_put(ep);
411 return ret;
412 }
413
414 if (WARN_ON(endpoint.base.port == 0) || index >= FIMC_MAX_SENSORS) {
415 of_node_put(ep);
416 return -EINVAL;
417 }
418
419 pd->mux_id = (endpoint.base.port - 1) & 0x1;
420
421 rem = of_graph_get_remote_port_parent(ep);
422 if (rem == NULL) {
423 v4l2_info(&fmd->v4l2_dev, "Remote device at %pOF not found\n",
424 ep);
425 of_node_put(ep);
426 return 0;
427 }
428
429 if (fimc_input_is_parallel(endpoint.base.port)) {
430 if (endpoint.bus_type == V4L2_MBUS_PARALLEL)
431 pd->sensor_bus_type = FIMC_BUS_TYPE_ITU_601;
432 else
433 pd->sensor_bus_type = FIMC_BUS_TYPE_ITU_656;
434 pd->flags = endpoint.bus.parallel.flags;
435 } else if (fimc_input_is_mipi_csi(endpoint.base.port)) {
436
437
438
439
440 pd->sensor_bus_type = FIMC_BUS_TYPE_MIPI_CSI2;
441 } else {
442 v4l2_err(&fmd->v4l2_dev, "Wrong port id (%u) at node %pOF\n",
443 endpoint.base.port, rem);
444 }
445
446
447
448
449
450
451
452
453 np = of_get_parent(rem);
454 of_node_put(rem);
455
456 if (of_node_name_eq(np, "i2c-isp"))
457 pd->fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK;
458 else
459 pd->fimc_bus_type = pd->sensor_bus_type;
460 of_node_put(np);
461
462 if (WARN_ON(index >= ARRAY_SIZE(fmd->sensor))) {
463 of_node_put(ep);
464 return -EINVAL;
465 }
466
467 asd = v4l2_async_notifier_add_fwnode_remote_subdev(
468 &fmd->subdev_notifier, of_fwnode_handle(ep),
469 struct v4l2_async_subdev);
470
471 of_node_put(ep);
472
473 if (IS_ERR(asd))
474 return PTR_ERR(asd);
475
476 fmd->sensor[index].asd = asd;
477 fmd->num_sensors++;
478
479 return 0;
480}
481
482
483static int fimc_md_parse_port_node(struct fimc_md *fmd,
484 struct device_node *port)
485{
486 struct device_node *ep;
487 int ret;
488
489 for_each_child_of_node(port, ep) {
490 ret = fimc_md_parse_one_endpoint(fmd, ep);
491 if (ret < 0) {
492 of_node_put(ep);
493 return ret;
494 }
495 }
496
497 return 0;
498}
499
500
501static int fimc_md_register_sensor_entities(struct fimc_md *fmd)
502{
503 struct device_node *parent = fmd->pdev->dev.of_node;
504 struct device_node *ports = NULL;
505 struct device_node *node;
506 int ret;
507
508
509
510
511
512 if (!fmd->pmf)
513 return -ENXIO;
514
515 ret = pm_runtime_resume_and_get(fmd->pmf);
516 if (ret < 0)
517 return ret;
518
519 fmd->num_sensors = 0;
520
521
522 for_each_available_child_of_node(parent, node) {
523 struct device_node *port;
524
525 if (!of_node_name_eq(node, "csis"))
526 continue;
527
528 port = of_get_next_child(node, NULL);
529 if (!port)
530 continue;
531
532 ret = fimc_md_parse_port_node(fmd, port);
533 of_node_put(port);
534 if (ret < 0) {
535 of_node_put(node);
536 goto cleanup;
537 }
538 }
539
540
541 ports = of_get_child_by_name(parent, "parallel-ports");
542 if (!ports)
543 goto rpm_put;
544
545 for_each_child_of_node(ports, node) {
546 ret = fimc_md_parse_port_node(fmd, node);
547 if (ret < 0) {
548 of_node_put(node);
549 goto cleanup;
550 }
551 }
552 of_node_put(ports);
553
554rpm_put:
555 pm_runtime_put(fmd->pmf);
556 return 0;
557
558cleanup:
559 of_node_put(ports);
560 v4l2_async_notifier_cleanup(&fmd->subdev_notifier);
561 pm_runtime_put(fmd->pmf);
562 return ret;
563}
564
565static int __of_get_csis_id(struct device_node *np)
566{
567 u32 reg = 0;
568
569 np = of_get_child_by_name(np, "port");
570 if (!np)
571 return -EINVAL;
572 of_property_read_u32(np, "reg", ®);
573 of_node_put(np);
574 return reg - FIMC_INPUT_MIPI_CSI2_0;
575}
576
577
578
579
580static int register_fimc_lite_entity(struct fimc_md *fmd,
581 struct fimc_lite *fimc_lite)
582{
583 struct v4l2_subdev *sd;
584 struct exynos_media_pipeline *ep;
585 int ret;
586
587 if (WARN_ON(fimc_lite->index >= FIMC_LITE_MAX_DEVS ||
588 fmd->fimc_lite[fimc_lite->index]))
589 return -EBUSY;
590
591 sd = &fimc_lite->subdev;
592 sd->grp_id = GRP_ID_FLITE;
593
594 ep = fimc_md_pipeline_create(fmd);
595 if (!ep)
596 return -ENOMEM;
597
598 v4l2_set_subdev_hostdata(sd, ep);
599
600 ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
601 if (!ret)
602 fmd->fimc_lite[fimc_lite->index] = fimc_lite;
603 else
604 v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.LITE%d\n",
605 fimc_lite->index);
606 return ret;
607}
608
609static int register_fimc_entity(struct fimc_md *fmd, struct fimc_dev *fimc)
610{
611 struct v4l2_subdev *sd;
612 struct exynos_media_pipeline *ep;
613 int ret;
614
615 if (WARN_ON(fimc->id >= FIMC_MAX_DEVS || fmd->fimc[fimc->id]))
616 return -EBUSY;
617
618 sd = &fimc->vid_cap.subdev;
619 sd->grp_id = GRP_ID_FIMC;
620
621 ep = fimc_md_pipeline_create(fmd);
622 if (!ep)
623 return -ENOMEM;
624
625 v4l2_set_subdev_hostdata(sd, ep);
626
627 ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
628 if (!ret) {
629 if (!fmd->pmf && fimc->pdev)
630 fmd->pmf = &fimc->pdev->dev;
631 fmd->fimc[fimc->id] = fimc;
632 fimc->vid_cap.user_subdev_api = fmd->user_subdev_api;
633 } else {
634 v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n",
635 fimc->id, ret);
636 }
637 return ret;
638}
639
640static int register_csis_entity(struct fimc_md *fmd,
641 struct platform_device *pdev,
642 struct v4l2_subdev *sd)
643{
644 struct device_node *node = pdev->dev.of_node;
645 int id, ret;
646
647 id = node ? __of_get_csis_id(node) : max(0, pdev->id);
648
649 if (WARN_ON(id < 0 || id >= CSIS_MAX_ENTITIES))
650 return -ENOENT;
651
652 if (WARN_ON(fmd->csis[id].sd))
653 return -EBUSY;
654
655 sd->grp_id = GRP_ID_CSIS;
656 ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
657 if (!ret)
658 fmd->csis[id].sd = sd;
659 else
660 v4l2_err(&fmd->v4l2_dev,
661 "Failed to register MIPI-CSIS.%d (%d)\n", id, ret);
662 return ret;
663}
664
665static int register_fimc_is_entity(struct fimc_md *fmd, struct fimc_is *is)
666{
667 struct v4l2_subdev *sd = &is->isp.subdev;
668 struct exynos_media_pipeline *ep;
669 int ret;
670
671
672 ep = fimc_md_pipeline_create(fmd);
673 if (!ep)
674 return -ENOMEM;
675
676 v4l2_set_subdev_hostdata(sd, ep);
677
678 ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
679 if (ret) {
680 v4l2_err(&fmd->v4l2_dev,
681 "Failed to register FIMC-ISP (%d)\n", ret);
682 return ret;
683 }
684
685 fmd->fimc_is = is;
686 return 0;
687}
688
689static int fimc_md_register_platform_entity(struct fimc_md *fmd,
690 struct platform_device *pdev,
691 int plat_entity)
692{
693 struct device *dev = &pdev->dev;
694 int ret = -EPROBE_DEFER;
695 void *drvdata;
696
697
698 device_lock(dev);
699
700 if (!dev->driver || !try_module_get(dev->driver->owner))
701 goto dev_unlock;
702
703 drvdata = dev_get_drvdata(dev);
704
705 if (drvdata) {
706 switch (plat_entity) {
707 case IDX_FIMC:
708 ret = register_fimc_entity(fmd, drvdata);
709 break;
710 case IDX_FLITE:
711 ret = register_fimc_lite_entity(fmd, drvdata);
712 break;
713 case IDX_CSIS:
714 ret = register_csis_entity(fmd, pdev, drvdata);
715 break;
716 case IDX_IS_ISP:
717 ret = register_fimc_is_entity(fmd, drvdata);
718 break;
719 default:
720 ret = -ENODEV;
721 }
722 }
723
724 module_put(dev->driver->owner);
725dev_unlock:
726 device_unlock(dev);
727 if (ret == -EPROBE_DEFER)
728 dev_info(&fmd->pdev->dev, "deferring %s device registration\n",
729 dev_name(dev));
730 else if (ret < 0)
731 dev_err(&fmd->pdev->dev, "%s device registration failed (%d)\n",
732 dev_name(dev), ret);
733 return ret;
734}
735
736
737static int fimc_md_register_platform_entities(struct fimc_md *fmd,
738 struct device_node *parent)
739{
740 struct device_node *node;
741 int ret = 0;
742
743 for_each_available_child_of_node(parent, node) {
744 struct platform_device *pdev;
745 int plat_entity = -1;
746
747 pdev = of_find_device_by_node(node);
748 if (!pdev)
749 continue;
750
751
752 if (of_node_name_eq(node, CSIS_OF_NODE_NAME))
753 plat_entity = IDX_CSIS;
754 else if (of_node_name_eq(node, FIMC_IS_OF_NODE_NAME))
755 plat_entity = IDX_IS_ISP;
756 else if (of_node_name_eq(node, FIMC_LITE_OF_NODE_NAME))
757 plat_entity = IDX_FLITE;
758 else if (of_node_name_eq(node, FIMC_OF_NODE_NAME) &&
759 !of_property_read_bool(node, "samsung,lcd-wb"))
760 plat_entity = IDX_FIMC;
761
762 if (plat_entity >= 0)
763 ret = fimc_md_register_platform_entity(fmd, pdev,
764 plat_entity);
765 put_device(&pdev->dev);
766 if (ret < 0) {
767 of_node_put(node);
768 break;
769 }
770 }
771
772 return ret;
773}
774
775static void fimc_md_unregister_entities(struct fimc_md *fmd)
776{
777 int i;
778
779 for (i = 0; i < FIMC_MAX_DEVS; i++) {
780 struct fimc_dev *dev = fmd->fimc[i];
781 if (dev == NULL)
782 continue;
783 v4l2_device_unregister_subdev(&dev->vid_cap.subdev);
784 dev->vid_cap.ve.pipe = NULL;
785 fmd->fimc[i] = NULL;
786 }
787 for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) {
788 struct fimc_lite *dev = fmd->fimc_lite[i];
789 if (dev == NULL)
790 continue;
791 v4l2_device_unregister_subdev(&dev->subdev);
792 dev->ve.pipe = NULL;
793 fmd->fimc_lite[i] = NULL;
794 }
795 for (i = 0; i < CSIS_MAX_ENTITIES; i++) {
796 if (fmd->csis[i].sd == NULL)
797 continue;
798 v4l2_device_unregister_subdev(fmd->csis[i].sd);
799 fmd->csis[i].sd = NULL;
800 }
801
802 if (fmd->fimc_is)
803 v4l2_device_unregister_subdev(&fmd->fimc_is->isp.subdev);
804
805 v4l2_info(&fmd->v4l2_dev, "Unregistered all entities\n");
806}
807
808
809
810
811
812
813
814
815
816static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd,
817 struct media_entity *source,
818 struct v4l2_subdev *sensor,
819 int pad, int link_mask)
820{
821 struct fimc_source_info *si = NULL;
822 struct media_entity *sink;
823 unsigned int flags = 0;
824 int i, ret = 0;
825
826 if (sensor) {
827 si = v4l2_get_subdev_hostdata(sensor);
828
829 if (si && si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK)
830 ret = 1;
831 }
832
833 for (i = 0; !ret && i < FIMC_MAX_DEVS; i++) {
834 if (!fmd->fimc[i])
835 continue;
836
837
838
839
840 if (!fmd->fimc[i]->variant->has_cam_if)
841 continue;
842
843 flags = ((1 << i) & link_mask) ? MEDIA_LNK_FL_ENABLED : 0;
844
845 sink = &fmd->fimc[i]->vid_cap.subdev.entity;
846 ret = media_create_pad_link(source, pad, sink,
847 FIMC_SD_PAD_SINK_CAM, flags);
848 if (ret)
849 return ret;
850
851
852 ret = media_entity_call(sink, link_setup, &sink->pads[0],
853 &source->pads[pad], flags);
854 if (ret)
855 break;
856
857 v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]\n",
858 source->name, flags ? '=' : '-', sink->name);
859 }
860
861 for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) {
862 if (!fmd->fimc_lite[i])
863 continue;
864
865 sink = &fmd->fimc_lite[i]->subdev.entity;
866 ret = media_create_pad_link(source, pad, sink,
867 FLITE_SD_PAD_SINK, 0);
868 if (ret)
869 return ret;
870
871
872 ret = media_entity_call(sink, link_setup, &sink->pads[0],
873 &source->pads[pad], 0);
874 if (ret)
875 break;
876
877 v4l2_info(&fmd->v4l2_dev, "created link [%s] -> [%s]\n",
878 source->name, sink->name);
879 }
880 return 0;
881}
882
883
884static int __fimc_md_create_flite_source_links(struct fimc_md *fmd)
885{
886 struct media_entity *source, *sink;
887 int i, ret = 0;
888
889 for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) {
890 struct fimc_lite *fimc = fmd->fimc_lite[i];
891
892 if (fimc == NULL)
893 continue;
894
895 source = &fimc->subdev.entity;
896 sink = &fimc->ve.vdev.entity;
897
898 ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_DMA,
899 sink, 0, 0);
900 if (ret)
901 break;
902
903 sink = &fmd->fimc_is->isp.subdev.entity;
904 ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_ISP,
905 sink, 0, 0);
906 if (ret)
907 break;
908 }
909
910 return ret;
911}
912
913
914static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd)
915{
916 struct fimc_isp *isp = &fmd->fimc_is->isp;
917 struct media_entity *source, *sink;
918 int i, ret;
919
920 source = &isp->subdev.entity;
921
922 for (i = 0; i < FIMC_MAX_DEVS; i++) {
923 if (fmd->fimc[i] == NULL)
924 continue;
925
926
927 sink = &fmd->fimc[i]->vid_cap.subdev.entity;
928 ret = media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_FIFO,
929 sink, FIMC_SD_PAD_SINK_FIFO, 0);
930 if (ret)
931 return ret;
932 }
933
934
935 sink = &isp->video_capture.ve.vdev.entity;
936
937
938 if (sink->num_pads == 0)
939 return 0;
940
941 return media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_DMA,
942 sink, 0, 0);
943}
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958static int fimc_md_create_links(struct fimc_md *fmd)
959{
960 struct v4l2_subdev *csi_sensors[CSIS_MAX_ENTITIES] = { NULL };
961 struct v4l2_subdev *sensor, *csis;
962 struct fimc_source_info *pdata;
963 struct media_entity *source, *sink;
964 int i, pad, fimc_id = 0, ret = 0;
965 u32 flags, link_mask = 0;
966
967 for (i = 0; i < fmd->num_sensors; i++) {
968 if (fmd->sensor[i].subdev == NULL)
969 continue;
970
971 sensor = fmd->sensor[i].subdev;
972 pdata = v4l2_get_subdev_hostdata(sensor);
973 if (!pdata)
974 continue;
975
976 source = NULL;
977
978 switch (pdata->sensor_bus_type) {
979 case FIMC_BUS_TYPE_MIPI_CSI2:
980 if (WARN(pdata->mux_id >= CSIS_MAX_ENTITIES,
981 "Wrong CSI channel id: %d\n", pdata->mux_id))
982 return -EINVAL;
983
984 csis = fmd->csis[pdata->mux_id].sd;
985 if (WARN(csis == NULL,
986 "MIPI-CSI interface specified but s5p-csis module is not loaded!\n"))
987 return -EINVAL;
988
989 pad = sensor->entity.num_pads - 1;
990 ret = media_create_pad_link(&sensor->entity, pad,
991 &csis->entity, CSIS_PAD_SINK,
992 MEDIA_LNK_FL_IMMUTABLE |
993 MEDIA_LNK_FL_ENABLED);
994 if (ret)
995 return ret;
996
997 v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]\n",
998 sensor->entity.name, csis->entity.name);
999
1000 source = NULL;
1001 csi_sensors[pdata->mux_id] = sensor;
1002 break;
1003
1004 case FIMC_BUS_TYPE_ITU_601...FIMC_BUS_TYPE_ITU_656:
1005 source = &sensor->entity;
1006 pad = 0;
1007 break;
1008
1009 default:
1010 v4l2_err(&fmd->v4l2_dev, "Wrong bus_type: %x\n",
1011 pdata->sensor_bus_type);
1012 return -EINVAL;
1013 }
1014 if (source == NULL)
1015 continue;
1016
1017 link_mask = 1 << fimc_id++;
1018 ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor,
1019 pad, link_mask);
1020 }
1021
1022 for (i = 0; i < CSIS_MAX_ENTITIES; i++) {
1023 if (fmd->csis[i].sd == NULL)
1024 continue;
1025
1026 source = &fmd->csis[i].sd->entity;
1027 pad = CSIS_PAD_SOURCE;
1028 sensor = csi_sensors[i];
1029
1030 link_mask = 1 << fimc_id++;
1031 ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor,
1032 pad, link_mask);
1033 }
1034
1035
1036 flags = MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED;
1037 for (i = 0; i < FIMC_MAX_DEVS; i++) {
1038 if (!fmd->fimc[i])
1039 continue;
1040
1041 source = &fmd->fimc[i]->vid_cap.subdev.entity;
1042 sink = &fmd->fimc[i]->vid_cap.ve.vdev.entity;
1043
1044 ret = media_create_pad_link(source, FIMC_SD_PAD_SOURCE,
1045 sink, 0, flags);
1046 if (ret)
1047 break;
1048 }
1049
1050 ret = __fimc_md_create_flite_source_links(fmd);
1051 if (ret < 0)
1052 return ret;
1053
1054 if (fmd->use_isp)
1055 ret = __fimc_md_create_fimc_is_links(fmd);
1056
1057 return ret;
1058}
1059
1060
1061
1062
1063static void fimc_md_put_clocks(struct fimc_md *fmd)
1064{
1065 int i = FIMC_MAX_CAMCLKS;
1066
1067 while (--i >= 0) {
1068 if (IS_ERR(fmd->camclk[i].clock))
1069 continue;
1070 clk_put(fmd->camclk[i].clock);
1071 fmd->camclk[i].clock = ERR_PTR(-EINVAL);
1072 }
1073
1074
1075 for (i = 0; i < FIMC_MAX_WBCLKS; i++) {
1076 if (IS_ERR(fmd->wbclk[i]))
1077 continue;
1078 clk_put(fmd->wbclk[i]);
1079 fmd->wbclk[i] = ERR_PTR(-EINVAL);
1080 }
1081}
1082
1083static int fimc_md_get_clocks(struct fimc_md *fmd)
1084{
1085 struct device *dev = &fmd->pdev->dev;
1086 char clk_name[32];
1087 struct clk *clock;
1088 int i, ret = 0;
1089
1090 for (i = 0; i < FIMC_MAX_CAMCLKS; i++)
1091 fmd->camclk[i].clock = ERR_PTR(-EINVAL);
1092
1093 for (i = 0; i < FIMC_MAX_CAMCLKS; i++) {
1094 snprintf(clk_name, sizeof(clk_name), "sclk_cam%u", i);
1095 clock = clk_get(dev, clk_name);
1096
1097 if (IS_ERR(clock)) {
1098 dev_err(dev, "Failed to get clock: %s\n", clk_name);
1099 ret = PTR_ERR(clock);
1100 break;
1101 }
1102 fmd->camclk[i].clock = clock;
1103 }
1104 if (ret)
1105 fimc_md_put_clocks(fmd);
1106
1107 if (!fmd->use_isp)
1108 return 0;
1109
1110
1111
1112
1113 fmd->wbclk[CLK_IDX_WB_A] = ERR_PTR(-EINVAL);
1114
1115 for (i = CLK_IDX_WB_B; i < FIMC_MAX_WBCLKS; i++) {
1116 snprintf(clk_name, sizeof(clk_name), "pxl_async%u", i);
1117 clock = clk_get(dev, clk_name);
1118 if (IS_ERR(clock)) {
1119 v4l2_err(&fmd->v4l2_dev, "Failed to get clock: %s\n",
1120 clk_name);
1121 ret = PTR_ERR(clock);
1122 break;
1123 }
1124 fmd->wbclk[i] = clock;
1125 }
1126 if (ret)
1127 fimc_md_put_clocks(fmd);
1128
1129 return ret;
1130}
1131
1132static int __fimc_md_modify_pipeline(struct media_entity *entity, bool enable)
1133{
1134 struct exynos_video_entity *ve;
1135 struct fimc_pipeline *p;
1136 struct video_device *vdev;
1137 int ret;
1138
1139 vdev = media_entity_to_video_device(entity);
1140 if (vdev->entity.use_count == 0)
1141 return 0;
1142
1143 ve = vdev_to_exynos_video_entity(vdev);
1144 p = to_fimc_pipeline(ve->pipe);
1145
1146
1147
1148
1149 if (!enable && p->subdevs[IDX_SENSOR] == NULL)
1150 return 0;
1151
1152 if (enable)
1153 ret = __fimc_pipeline_open(ve->pipe, entity, true);
1154 else
1155 ret = __fimc_pipeline_close(ve->pipe);
1156
1157 if (ret == 0 && !enable)
1158 memset(p->subdevs, 0, sizeof(p->subdevs));
1159
1160 return ret;
1161}
1162
1163
1164static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable,
1165 struct media_graph *graph)
1166{
1167 struct media_entity *entity_err = entity;
1168 int ret;
1169
1170
1171
1172
1173
1174
1175
1176 media_graph_walk_start(graph, entity);
1177
1178 while ((entity = media_graph_walk_next(graph))) {
1179 if (!is_media_entity_v4l2_video_device(entity))
1180 continue;
1181
1182 ret = __fimc_md_modify_pipeline(entity, enable);
1183
1184 if (ret < 0)
1185 goto err;
1186 }
1187
1188 return 0;
1189
1190err:
1191 media_graph_walk_start(graph, entity_err);
1192
1193 while ((entity_err = media_graph_walk_next(graph))) {
1194 if (!is_media_entity_v4l2_video_device(entity_err))
1195 continue;
1196
1197 __fimc_md_modify_pipeline(entity_err, !enable);
1198
1199 if (entity_err == entity)
1200 break;
1201 }
1202
1203 return ret;
1204}
1205
1206static int fimc_md_link_notify(struct media_link *link, unsigned int flags,
1207 unsigned int notification)
1208{
1209 struct media_graph *graph =
1210 &container_of(link->graph_obj.mdev, struct fimc_md,
1211 media_dev)->link_setup_graph;
1212 struct media_entity *sink = link->sink->entity;
1213 int ret = 0;
1214
1215
1216 if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) {
1217 ret = media_graph_walk_init(graph,
1218 link->graph_obj.mdev);
1219 if (ret)
1220 return ret;
1221 if (!(flags & MEDIA_LNK_FL_ENABLED))
1222 ret = __fimc_md_modify_pipelines(sink, false, graph);
1223#if 0
1224 else
1225
1226#endif
1227
1228 } else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH) {
1229 if (link->flags & MEDIA_LNK_FL_ENABLED)
1230 ret = __fimc_md_modify_pipelines(sink, true, graph);
1231 media_graph_walk_cleanup(graph);
1232 }
1233
1234 return ret ? -EPIPE : 0;
1235}
1236
1237static const struct media_device_ops fimc_md_ops = {
1238 .link_notify = fimc_md_link_notify,
1239};
1240
1241static ssize_t subdev_conf_mode_show(struct device *dev,
1242 struct device_attribute *attr, char *buf)
1243{
1244 struct fimc_md *fmd = dev_get_drvdata(dev);
1245
1246 if (fmd->user_subdev_api)
1247 return strscpy(buf, "Sub-device API (sub-dev)\n", PAGE_SIZE);
1248
1249 return strscpy(buf, "V4L2 video node only API (vid-dev)\n", PAGE_SIZE);
1250}
1251
1252static ssize_t subdev_conf_mode_store(struct device *dev,
1253 struct device_attribute *attr,
1254 const char *buf, size_t count)
1255{
1256 struct fimc_md *fmd = dev_get_drvdata(dev);
1257 bool subdev_api;
1258 int i;
1259
1260 if (!strcmp(buf, "vid-dev\n"))
1261 subdev_api = false;
1262 else if (!strcmp(buf, "sub-dev\n"))
1263 subdev_api = true;
1264 else
1265 return count;
1266
1267 fmd->user_subdev_api = subdev_api;
1268 for (i = 0; i < FIMC_MAX_DEVS; i++)
1269 if (fmd->fimc[i])
1270 fmd->fimc[i]->vid_cap.user_subdev_api = subdev_api;
1271 return count;
1272}
1273
1274
1275
1276
1277
1278
1279
1280
1281static DEVICE_ATTR_RW(subdev_conf_mode);
1282
1283static int cam_clk_prepare(struct clk_hw *hw)
1284{
1285 struct cam_clk *camclk = to_cam_clk(hw);
1286
1287 if (camclk->fmd->pmf == NULL)
1288 return -ENODEV;
1289
1290 return pm_runtime_resume_and_get(camclk->fmd->pmf);
1291}
1292
1293static void cam_clk_unprepare(struct clk_hw *hw)
1294{
1295 struct cam_clk *camclk = to_cam_clk(hw);
1296
1297 if (camclk->fmd->pmf == NULL)
1298 return;
1299
1300 pm_runtime_put_sync(camclk->fmd->pmf);
1301}
1302
1303static const struct clk_ops cam_clk_ops = {
1304 .prepare = cam_clk_prepare,
1305 .unprepare = cam_clk_unprepare,
1306};
1307
1308static void fimc_md_unregister_clk_provider(struct fimc_md *fmd)
1309{
1310 struct cam_clk_provider *cp = &fmd->clk_provider;
1311 unsigned int i;
1312
1313 if (cp->of_node)
1314 of_clk_del_provider(cp->of_node);
1315
1316 for (i = 0; i < cp->num_clocks; i++)
1317 clk_unregister(cp->clks[i]);
1318}
1319
1320static int fimc_md_register_clk_provider(struct fimc_md *fmd)
1321{
1322 struct cam_clk_provider *cp = &fmd->clk_provider;
1323 struct device *dev = &fmd->pdev->dev;
1324 int i, ret;
1325
1326 for (i = 0; i < FIMC_MAX_CAMCLKS; i++) {
1327 struct cam_clk *camclk = &cp->camclk[i];
1328 struct clk_init_data init;
1329 const char *p_name;
1330
1331 ret = of_property_read_string_index(dev->of_node,
1332 "clock-output-names", i, &init.name);
1333 if (ret < 0)
1334 break;
1335
1336 p_name = __clk_get_name(fmd->camclk[i].clock);
1337
1338
1339 init.parent_names = &p_name;
1340 init.num_parents = 1;
1341 init.ops = &cam_clk_ops;
1342 init.flags = CLK_SET_RATE_PARENT;
1343 camclk->hw.init = &init;
1344 camclk->fmd = fmd;
1345
1346 cp->clks[i] = clk_register(NULL, &camclk->hw);
1347 if (IS_ERR(cp->clks[i])) {
1348 dev_err(dev, "failed to register clock: %s (%ld)\n",
1349 init.name, PTR_ERR(cp->clks[i]));
1350 ret = PTR_ERR(cp->clks[i]);
1351 goto err;
1352 }
1353 cp->num_clocks++;
1354 }
1355
1356 if (cp->num_clocks == 0) {
1357 dev_warn(dev, "clk provider not registered\n");
1358 return 0;
1359 }
1360
1361 cp->clk_data.clks = cp->clks;
1362 cp->clk_data.clk_num = cp->num_clocks;
1363 cp->of_node = dev->of_node;
1364 ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get,
1365 &cp->clk_data);
1366 if (ret == 0)
1367 return 0;
1368err:
1369 fimc_md_unregister_clk_provider(fmd);
1370 return ret;
1371}
1372
1373static int subdev_notifier_bound(struct v4l2_async_notifier *notifier,
1374 struct v4l2_subdev *subdev,
1375 struct v4l2_async_subdev *asd)
1376{
1377 struct fimc_md *fmd = notifier_to_fimc_md(notifier);
1378 struct fimc_sensor_info *si = NULL;
1379 int i;
1380
1381
1382 for (i = 0; i < ARRAY_SIZE(fmd->sensor); i++)
1383 if (fmd->sensor[i].asd &&
1384 fmd->sensor[i].asd->match.fwnode ==
1385 of_fwnode_handle(subdev->dev->of_node))
1386 si = &fmd->sensor[i];
1387
1388 if (si == NULL)
1389 return -EINVAL;
1390
1391 v4l2_set_subdev_hostdata(subdev, &si->pdata);
1392
1393 if (si->pdata.fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK)
1394 subdev->grp_id = GRP_ID_FIMC_IS_SENSOR;
1395 else
1396 subdev->grp_id = GRP_ID_SENSOR;
1397
1398 si->subdev = subdev;
1399
1400 v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice: %s (%d)\n",
1401 subdev->name, fmd->num_sensors);
1402
1403 fmd->num_sensors++;
1404
1405 return 0;
1406}
1407
1408static int subdev_notifier_complete(struct v4l2_async_notifier *notifier)
1409{
1410 struct fimc_md *fmd = notifier_to_fimc_md(notifier);
1411 int ret;
1412
1413 mutex_lock(&fmd->media_dev.graph_mutex);
1414
1415 ret = fimc_md_create_links(fmd);
1416 if (ret < 0)
1417 goto unlock;
1418
1419 ret = v4l2_device_register_subdev_nodes(&fmd->v4l2_dev);
1420unlock:
1421 mutex_unlock(&fmd->media_dev.graph_mutex);
1422 if (ret < 0)
1423 return ret;
1424
1425 return media_device_register(&fmd->media_dev);
1426}
1427
1428static const struct v4l2_async_notifier_operations subdev_notifier_ops = {
1429 .bound = subdev_notifier_bound,
1430 .complete = subdev_notifier_complete,
1431};
1432
1433static int fimc_md_probe(struct platform_device *pdev)
1434{
1435 struct device *dev = &pdev->dev;
1436 struct v4l2_device *v4l2_dev;
1437 struct pinctrl *pinctrl;
1438 struct fimc_md *fmd;
1439 int ret;
1440
1441 fmd = devm_kzalloc(dev, sizeof(*fmd), GFP_KERNEL);
1442 if (!fmd)
1443 return -ENOMEM;
1444
1445 spin_lock_init(&fmd->slock);
1446 INIT_LIST_HEAD(&fmd->pipelines);
1447 fmd->pdev = pdev;
1448
1449 strscpy(fmd->media_dev.model, "Samsung S5P FIMC",
1450 sizeof(fmd->media_dev.model));
1451 fmd->media_dev.ops = &fimc_md_ops;
1452 fmd->media_dev.dev = dev;
1453
1454 v4l2_dev = &fmd->v4l2_dev;
1455 v4l2_dev->mdev = &fmd->media_dev;
1456 v4l2_dev->notify = fimc_sensor_notify;
1457 strscpy(v4l2_dev->name, "s5p-fimc-md", sizeof(v4l2_dev->name));
1458
1459 fmd->use_isp = fimc_md_is_isp_available(dev->of_node);
1460 fmd->user_subdev_api = true;
1461
1462 media_device_init(&fmd->media_dev);
1463
1464 ret = v4l2_device_register(dev, &fmd->v4l2_dev);
1465 if (ret < 0) {
1466 v4l2_err(v4l2_dev, "Failed to register v4l2_device: %d\n", ret);
1467 goto err_md;
1468 }
1469
1470 ret = fimc_md_get_clocks(fmd);
1471 if (ret)
1472 goto err_v4l2dev;
1473
1474 pinctrl = devm_pinctrl_get(dev);
1475 if (IS_ERR(pinctrl)) {
1476 ret = PTR_ERR(pinctrl);
1477 if (ret != EPROBE_DEFER)
1478 dev_err(dev, "Failed to get pinctrl: %d\n", ret);
1479 goto err_clk;
1480 }
1481
1482 platform_set_drvdata(pdev, fmd);
1483
1484 v4l2_async_notifier_init(&fmd->subdev_notifier);
1485
1486 ret = fimc_md_register_platform_entities(fmd, dev->of_node);
1487 if (ret)
1488 goto err_clk;
1489
1490 ret = fimc_md_register_sensor_entities(fmd);
1491 if (ret)
1492 goto err_m_ent;
1493
1494 ret = device_create_file(&pdev->dev, &dev_attr_subdev_conf_mode);
1495 if (ret)
1496 goto err_cleanup;
1497
1498
1499
1500
1501
1502 ret = fimc_md_register_clk_provider(fmd);
1503 if (ret < 0) {
1504 v4l2_err(v4l2_dev, "clock provider registration failed\n");
1505 goto err_attr;
1506 }
1507
1508 if (fmd->num_sensors > 0) {
1509 fmd->subdev_notifier.ops = &subdev_notifier_ops;
1510 fmd->num_sensors = 0;
1511
1512 ret = v4l2_async_notifier_register(&fmd->v4l2_dev,
1513 &fmd->subdev_notifier);
1514 if (ret)
1515 goto err_clk_p;
1516 }
1517
1518 return 0;
1519
1520err_clk_p:
1521 fimc_md_unregister_clk_provider(fmd);
1522err_attr:
1523 device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode);
1524err_cleanup:
1525 v4l2_async_notifier_cleanup(&fmd->subdev_notifier);
1526err_m_ent:
1527 fimc_md_unregister_entities(fmd);
1528err_clk:
1529 fimc_md_put_clocks(fmd);
1530err_v4l2dev:
1531 v4l2_device_unregister(&fmd->v4l2_dev);
1532err_md:
1533 media_device_cleanup(&fmd->media_dev);
1534 return ret;
1535}
1536
1537static int fimc_md_remove(struct platform_device *pdev)
1538{
1539 struct fimc_md *fmd = platform_get_drvdata(pdev);
1540
1541 if (!fmd)
1542 return 0;
1543
1544 fimc_md_unregister_clk_provider(fmd);
1545 v4l2_async_notifier_unregister(&fmd->subdev_notifier);
1546 v4l2_async_notifier_cleanup(&fmd->subdev_notifier);
1547
1548 v4l2_device_unregister(&fmd->v4l2_dev);
1549 device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode);
1550 fimc_md_unregister_entities(fmd);
1551 fimc_md_pipelines_free(fmd);
1552 media_device_unregister(&fmd->media_dev);
1553 media_device_cleanup(&fmd->media_dev);
1554 fimc_md_put_clocks(fmd);
1555
1556 return 0;
1557}
1558
1559static const struct platform_device_id fimc_driver_ids[] __always_unused = {
1560 { .name = "s5p-fimc-md" },
1561 { },
1562};
1563MODULE_DEVICE_TABLE(platform, fimc_driver_ids);
1564
1565static const struct of_device_id fimc_md_of_match[] = {
1566 { .compatible = "samsung,fimc" },
1567 { },
1568};
1569MODULE_DEVICE_TABLE(of, fimc_md_of_match);
1570
1571static struct platform_driver fimc_md_driver = {
1572 .probe = fimc_md_probe,
1573 .remove = fimc_md_remove,
1574 .driver = {
1575 .of_match_table = of_match_ptr(fimc_md_of_match),
1576 .name = "s5p-fimc-md",
1577 }
1578};
1579
1580static int __init fimc_md_init(void)
1581{
1582 int ret;
1583
1584 request_module("s5p-csis");
1585 ret = fimc_register_driver();
1586 if (ret)
1587 return ret;
1588
1589 return platform_driver_register(&fimc_md_driver);
1590}
1591
1592static void __exit fimc_md_exit(void)
1593{
1594 platform_driver_unregister(&fimc_md_driver);
1595 fimc_unregister_driver();
1596}
1597
1598module_init(fimc_md_init);
1599module_exit(fimc_md_exit);
1600
1601MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
1602MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver");
1603MODULE_LICENSE("GPL");
1604MODULE_VERSION("2.0.1");
1605