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10#include <linux/clk.h>
11#include <linux/completion.h>
12#include <linux/interrupt.h>
13#include <linux/iommu.h>
14#include <linux/mutex.h>
15#include <linux/of.h>
16#include <linux/platform_device.h>
17#include <linux/pm_runtime.h>
18#include <linux/spinlock_types.h>
19#include <linux/spinlock.h>
20#include <media/media-entity.h>
21#include <media/v4l2-device.h>
22#include <media/v4l2-subdev.h>
23
24#include "camss-vfe.h"
25#include "camss.h"
26
27#define MSM_VFE_NAME "msm_vfe"
28
29
30#define VFE_RESET_TIMEOUT_MS 50
31
32#define SCALER_RATIO_MAX 16
33
34struct vfe_format {
35 u32 code;
36 u8 bpp;
37};
38
39static const struct vfe_format formats_rdi_8x16[] = {
40 { MEDIA_BUS_FMT_UYVY8_2X8, 8 },
41 { MEDIA_BUS_FMT_VYUY8_2X8, 8 },
42 { MEDIA_BUS_FMT_YUYV8_2X8, 8 },
43 { MEDIA_BUS_FMT_YVYU8_2X8, 8 },
44 { MEDIA_BUS_FMT_SBGGR8_1X8, 8 },
45 { MEDIA_BUS_FMT_SGBRG8_1X8, 8 },
46 { MEDIA_BUS_FMT_SGRBG8_1X8, 8 },
47 { MEDIA_BUS_FMT_SRGGB8_1X8, 8 },
48 { MEDIA_BUS_FMT_SBGGR10_1X10, 10 },
49 { MEDIA_BUS_FMT_SGBRG10_1X10, 10 },
50 { MEDIA_BUS_FMT_SGRBG10_1X10, 10 },
51 { MEDIA_BUS_FMT_SRGGB10_1X10, 10 },
52 { MEDIA_BUS_FMT_SBGGR12_1X12, 12 },
53 { MEDIA_BUS_FMT_SGBRG12_1X12, 12 },
54 { MEDIA_BUS_FMT_SGRBG12_1X12, 12 },
55 { MEDIA_BUS_FMT_SRGGB12_1X12, 12 },
56 { MEDIA_BUS_FMT_Y10_1X10, 10 },
57};
58
59static const struct vfe_format formats_pix_8x16[] = {
60 { MEDIA_BUS_FMT_UYVY8_2X8, 8 },
61 { MEDIA_BUS_FMT_VYUY8_2X8, 8 },
62 { MEDIA_BUS_FMT_YUYV8_2X8, 8 },
63 { MEDIA_BUS_FMT_YVYU8_2X8, 8 },
64};
65
66static const struct vfe_format formats_rdi_8x96[] = {
67 { MEDIA_BUS_FMT_UYVY8_2X8, 8 },
68 { MEDIA_BUS_FMT_VYUY8_2X8, 8 },
69 { MEDIA_BUS_FMT_YUYV8_2X8, 8 },
70 { MEDIA_BUS_FMT_YVYU8_2X8, 8 },
71 { MEDIA_BUS_FMT_SBGGR8_1X8, 8 },
72 { MEDIA_BUS_FMT_SGBRG8_1X8, 8 },
73 { MEDIA_BUS_FMT_SGRBG8_1X8, 8 },
74 { MEDIA_BUS_FMT_SRGGB8_1X8, 8 },
75 { MEDIA_BUS_FMT_SBGGR10_1X10, 10 },
76 { MEDIA_BUS_FMT_SGBRG10_1X10, 10 },
77 { MEDIA_BUS_FMT_SGRBG10_1X10, 10 },
78 { MEDIA_BUS_FMT_SRGGB10_1X10, 10 },
79 { MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, 16 },
80 { MEDIA_BUS_FMT_SBGGR12_1X12, 12 },
81 { MEDIA_BUS_FMT_SGBRG12_1X12, 12 },
82 { MEDIA_BUS_FMT_SGRBG12_1X12, 12 },
83 { MEDIA_BUS_FMT_SRGGB12_1X12, 12 },
84 { MEDIA_BUS_FMT_SBGGR14_1X14, 14 },
85 { MEDIA_BUS_FMT_SGBRG14_1X14, 14 },
86 { MEDIA_BUS_FMT_SGRBG14_1X14, 14 },
87 { MEDIA_BUS_FMT_SRGGB14_1X14, 14 },
88 { MEDIA_BUS_FMT_Y10_1X10, 10 },
89 { MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, 16 },
90};
91
92static const struct vfe_format formats_pix_8x96[] = {
93 { MEDIA_BUS_FMT_UYVY8_2X8, 8 },
94 { MEDIA_BUS_FMT_VYUY8_2X8, 8 },
95 { MEDIA_BUS_FMT_YUYV8_2X8, 8 },
96 { MEDIA_BUS_FMT_YVYU8_2X8, 8 },
97};
98
99static const struct vfe_format formats_rdi_845[] = {
100 { MEDIA_BUS_FMT_UYVY8_2X8, 8 },
101 { MEDIA_BUS_FMT_VYUY8_2X8, 8 },
102 { MEDIA_BUS_FMT_YUYV8_2X8, 8 },
103 { MEDIA_BUS_FMT_YVYU8_2X8, 8 },
104 { MEDIA_BUS_FMT_SBGGR8_1X8, 8 },
105 { MEDIA_BUS_FMT_SGBRG8_1X8, 8 },
106 { MEDIA_BUS_FMT_SGRBG8_1X8, 8 },
107 { MEDIA_BUS_FMT_SRGGB8_1X8, 8 },
108 { MEDIA_BUS_FMT_SBGGR10_1X10, 10 },
109 { MEDIA_BUS_FMT_SGBRG10_1X10, 10 },
110 { MEDIA_BUS_FMT_SGRBG10_1X10, 10 },
111 { MEDIA_BUS_FMT_SRGGB10_1X10, 10 },
112 { MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, 16 },
113 { MEDIA_BUS_FMT_SBGGR12_1X12, 12 },
114 { MEDIA_BUS_FMT_SGBRG12_1X12, 12 },
115 { MEDIA_BUS_FMT_SGRBG12_1X12, 12 },
116 { MEDIA_BUS_FMT_SRGGB12_1X12, 12 },
117 { MEDIA_BUS_FMT_SBGGR14_1X14, 14 },
118 { MEDIA_BUS_FMT_SGBRG14_1X14, 14 },
119 { MEDIA_BUS_FMT_SGRBG14_1X14, 14 },
120 { MEDIA_BUS_FMT_SRGGB14_1X14, 14 },
121 { MEDIA_BUS_FMT_Y10_1X10, 10 },
122 { MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, 16 },
123};
124
125
126
127
128
129
130
131
132
133static u8 vfe_get_bpp(const struct vfe_format *formats,
134 unsigned int nformats, u32 code)
135{
136 unsigned int i;
137
138 for (i = 0; i < nformats; i++)
139 if (code == formats[i].code)
140 return formats[i].bpp;
141
142 WARN(1, "Unknown format\n");
143
144 return formats[0].bpp;
145}
146
147static u32 vfe_find_code(u32 *code, unsigned int n_code,
148 unsigned int index, u32 req_code)
149{
150 int i;
151
152 if (!req_code && (index >= n_code))
153 return 0;
154
155 for (i = 0; i < n_code; i++)
156 if (req_code) {
157 if (req_code == code[i])
158 return req_code;
159 } else {
160 if (i == index)
161 return code[i];
162 }
163
164 return code[0];
165}
166
167static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
168 unsigned int index, u32 src_req_code)
169{
170 struct vfe_device *vfe = to_vfe(line);
171
172 if (vfe->camss->version == CAMSS_8x16)
173 switch (sink_code) {
174 case MEDIA_BUS_FMT_YUYV8_2X8:
175 {
176 u32 src_code[] = {
177 MEDIA_BUS_FMT_YUYV8_2X8,
178 MEDIA_BUS_FMT_YUYV8_1_5X8,
179 };
180
181 return vfe_find_code(src_code, ARRAY_SIZE(src_code),
182 index, src_req_code);
183 }
184 case MEDIA_BUS_FMT_YVYU8_2X8:
185 {
186 u32 src_code[] = {
187 MEDIA_BUS_FMT_YVYU8_2X8,
188 MEDIA_BUS_FMT_YVYU8_1_5X8,
189 };
190
191 return vfe_find_code(src_code, ARRAY_SIZE(src_code),
192 index, src_req_code);
193 }
194 case MEDIA_BUS_FMT_UYVY8_2X8:
195 {
196 u32 src_code[] = {
197 MEDIA_BUS_FMT_UYVY8_2X8,
198 MEDIA_BUS_FMT_UYVY8_1_5X8,
199 };
200
201 return vfe_find_code(src_code, ARRAY_SIZE(src_code),
202 index, src_req_code);
203 }
204 case MEDIA_BUS_FMT_VYUY8_2X8:
205 {
206 u32 src_code[] = {
207 MEDIA_BUS_FMT_VYUY8_2X8,
208 MEDIA_BUS_FMT_VYUY8_1_5X8,
209 };
210
211 return vfe_find_code(src_code, ARRAY_SIZE(src_code),
212 index, src_req_code);
213 }
214 default:
215 if (index > 0)
216 return 0;
217
218 return sink_code;
219 }
220 else if (vfe->camss->version == CAMSS_8x96 ||
221 vfe->camss->version == CAMSS_660 ||
222 vfe->camss->version == CAMSS_845)
223 switch (sink_code) {
224 case MEDIA_BUS_FMT_YUYV8_2X8:
225 {
226 u32 src_code[] = {
227 MEDIA_BUS_FMT_YUYV8_2X8,
228 MEDIA_BUS_FMT_YVYU8_2X8,
229 MEDIA_BUS_FMT_UYVY8_2X8,
230 MEDIA_BUS_FMT_VYUY8_2X8,
231 MEDIA_BUS_FMT_YUYV8_1_5X8,
232 };
233
234 return vfe_find_code(src_code, ARRAY_SIZE(src_code),
235 index, src_req_code);
236 }
237 case MEDIA_BUS_FMT_YVYU8_2X8:
238 {
239 u32 src_code[] = {
240 MEDIA_BUS_FMT_YVYU8_2X8,
241 MEDIA_BUS_FMT_YUYV8_2X8,
242 MEDIA_BUS_FMT_UYVY8_2X8,
243 MEDIA_BUS_FMT_VYUY8_2X8,
244 MEDIA_BUS_FMT_YVYU8_1_5X8,
245 };
246
247 return vfe_find_code(src_code, ARRAY_SIZE(src_code),
248 index, src_req_code);
249 }
250 case MEDIA_BUS_FMT_UYVY8_2X8:
251 {
252 u32 src_code[] = {
253 MEDIA_BUS_FMT_UYVY8_2X8,
254 MEDIA_BUS_FMT_YUYV8_2X8,
255 MEDIA_BUS_FMT_YVYU8_2X8,
256 MEDIA_BUS_FMT_VYUY8_2X8,
257 MEDIA_BUS_FMT_UYVY8_1_5X8,
258 };
259
260 return vfe_find_code(src_code, ARRAY_SIZE(src_code),
261 index, src_req_code);
262 }
263 case MEDIA_BUS_FMT_VYUY8_2X8:
264 {
265 u32 src_code[] = {
266 MEDIA_BUS_FMT_VYUY8_2X8,
267 MEDIA_BUS_FMT_YUYV8_2X8,
268 MEDIA_BUS_FMT_YVYU8_2X8,
269 MEDIA_BUS_FMT_UYVY8_2X8,
270 MEDIA_BUS_FMT_VYUY8_1_5X8,
271 };
272
273 return vfe_find_code(src_code, ARRAY_SIZE(src_code),
274 index, src_req_code);
275 }
276 default:
277 if (index > 0)
278 return 0;
279
280 return sink_code;
281 }
282 else
283 return 0;
284}
285
286int vfe_reset(struct vfe_device *vfe)
287{
288 unsigned long time;
289
290 reinit_completion(&vfe->reset_complete);
291
292 vfe->ops->global_reset(vfe);
293
294 time = wait_for_completion_timeout(&vfe->reset_complete,
295 msecs_to_jiffies(VFE_RESET_TIMEOUT_MS));
296 if (!time) {
297 dev_err(vfe->camss->dev, "VFE reset timeout\n");
298 return -EIO;
299 }
300
301 return 0;
302}
303
304static void vfe_init_outputs(struct vfe_device *vfe)
305{
306 int i;
307
308 for (i = 0; i < vfe->line_num; i++) {
309 struct vfe_output *output = &vfe->line[i].output;
310
311 output->state = VFE_OUTPUT_OFF;
312 output->buf[0] = NULL;
313 output->buf[1] = NULL;
314 INIT_LIST_HEAD(&output->pending_bufs);
315 }
316}
317
318static void vfe_reset_output_maps(struct vfe_device *vfe)
319{
320 int i;
321
322 for (i = 0; i < ARRAY_SIZE(vfe->wm_output_map); i++)
323 vfe->wm_output_map[i] = VFE_LINE_NONE;
324}
325
326int vfe_reserve_wm(struct vfe_device *vfe, enum vfe_line_id line_id)
327{
328 int ret = -EBUSY;
329 int i;
330
331 for (i = 0; i < ARRAY_SIZE(vfe->wm_output_map); i++) {
332 if (vfe->wm_output_map[i] == VFE_LINE_NONE) {
333 vfe->wm_output_map[i] = line_id;
334 ret = i;
335 break;
336 }
337 }
338
339 return ret;
340}
341
342int vfe_release_wm(struct vfe_device *vfe, u8 wm)
343{
344 if (wm >= ARRAY_SIZE(vfe->wm_output_map))
345 return -EINVAL;
346
347 vfe->wm_output_map[wm] = VFE_LINE_NONE;
348
349 return 0;
350}
351
352struct camss_buffer *vfe_buf_get_pending(struct vfe_output *output)
353{
354 struct camss_buffer *buffer = NULL;
355
356 if (!list_empty(&output->pending_bufs)) {
357 buffer = list_first_entry(&output->pending_bufs,
358 struct camss_buffer,
359 queue);
360 list_del(&buffer->queue);
361 }
362
363 return buffer;
364}
365
366void vfe_buf_add_pending(struct vfe_output *output,
367 struct camss_buffer *buffer)
368{
369 INIT_LIST_HEAD(&buffer->queue);
370 list_add_tail(&buffer->queue, &output->pending_bufs);
371}
372
373
374
375
376
377
378static void vfe_buf_flush_pending(struct vfe_output *output,
379 enum vb2_buffer_state state)
380{
381 struct camss_buffer *buf;
382 struct camss_buffer *t;
383
384 list_for_each_entry_safe(buf, t, &output->pending_bufs, queue) {
385 vb2_buffer_done(&buf->vb.vb2_buf, state);
386 list_del(&buf->queue);
387 }
388}
389
390int vfe_put_output(struct vfe_line *line)
391{
392 struct vfe_device *vfe = to_vfe(line);
393 struct vfe_output *output = &line->output;
394 unsigned long flags;
395 unsigned int i;
396
397 spin_lock_irqsave(&vfe->output_lock, flags);
398
399 for (i = 0; i < output->wm_num; i++)
400 vfe_release_wm(vfe, output->wm_idx[i]);
401
402 output->state = VFE_OUTPUT_OFF;
403
404 spin_unlock_irqrestore(&vfe->output_lock, flags);
405 return 0;
406}
407
408
409
410
411
412
413void vfe_isr_comp_done(struct vfe_device *vfe, u8 comp)
414{
415 unsigned int i;
416
417 for (i = 0; i < ARRAY_SIZE(vfe->wm_output_map); i++)
418 if (vfe->wm_output_map[i] == VFE_LINE_PIX) {
419 vfe->isr_ops.wm_done(vfe, i);
420 break;
421 }
422}
423
424void vfe_isr_reset_ack(struct vfe_device *vfe)
425{
426 complete(&vfe->reset_complete);
427}
428
429
430
431
432
433
434
435static int vfe_set_clock_rates(struct vfe_device *vfe)
436{
437 struct device *dev = vfe->camss->dev;
438 u64 pixel_clock[VFE_LINE_NUM_MAX];
439 int i, j;
440 int ret;
441
442 for (i = VFE_LINE_RDI0; i < vfe->line_num; i++) {
443 ret = camss_get_pixel_clock(&vfe->line[i].subdev.entity,
444 &pixel_clock[i]);
445 if (ret)
446 pixel_clock[i] = 0;
447 }
448
449 for (i = 0; i < vfe->nclocks; i++) {
450 struct camss_clock *clock = &vfe->clock[i];
451
452 if (!strcmp(clock->name, "vfe0") ||
453 !strcmp(clock->name, "vfe1") ||
454 !strcmp(clock->name, "vfe_lite")) {
455 u64 min_rate = 0;
456 long rate;
457
458 for (j = VFE_LINE_RDI0; j < vfe->line_num; j++) {
459 u32 tmp;
460 u8 bpp;
461
462 if (j == VFE_LINE_PIX) {
463 tmp = pixel_clock[j];
464 } else {
465 struct vfe_line *l = &vfe->line[j];
466
467 bpp = vfe_get_bpp(l->formats,
468 l->nformats,
469 l->fmt[MSM_VFE_PAD_SINK].code);
470 tmp = pixel_clock[j] * bpp / 64;
471 }
472
473 if (min_rate < tmp)
474 min_rate = tmp;
475 }
476
477 camss_add_clock_margin(&min_rate);
478
479 for (j = 0; j < clock->nfreqs; j++)
480 if (min_rate < clock->freq[j])
481 break;
482
483 if (j == clock->nfreqs) {
484 dev_err(dev,
485 "Pixel clock is too high for VFE");
486 return -EINVAL;
487 }
488
489
490
491 if (min_rate == 0)
492 j = clock->nfreqs - 1;
493
494 rate = clk_round_rate(clock->clk, clock->freq[j]);
495 if (rate < 0) {
496 dev_err(dev, "clk round rate failed: %ld\n",
497 rate);
498 return -EINVAL;
499 }
500
501 ret = clk_set_rate(clock->clk, rate);
502 if (ret < 0) {
503 dev_err(dev, "clk set rate failed: %d\n", ret);
504 return ret;
505 }
506 }
507 }
508
509 return 0;
510}
511
512
513
514
515
516
517
518
519static int vfe_check_clock_rates(struct vfe_device *vfe)
520{
521 u64 pixel_clock[VFE_LINE_NUM_MAX];
522 int i, j;
523 int ret;
524
525 for (i = VFE_LINE_RDI0; i < vfe->line_num; i++) {
526 ret = camss_get_pixel_clock(&vfe->line[i].subdev.entity,
527 &pixel_clock[i]);
528 if (ret)
529 pixel_clock[i] = 0;
530 }
531
532 for (i = 0; i < vfe->nclocks; i++) {
533 struct camss_clock *clock = &vfe->clock[i];
534
535 if (!strcmp(clock->name, "vfe0") ||
536 !strcmp(clock->name, "vfe1")) {
537 u64 min_rate = 0;
538 unsigned long rate;
539
540 for (j = VFE_LINE_RDI0; j < vfe->line_num; j++) {
541 u32 tmp;
542 u8 bpp;
543
544 if (j == VFE_LINE_PIX) {
545 tmp = pixel_clock[j];
546 } else {
547 struct vfe_line *l = &vfe->line[j];
548
549 bpp = vfe_get_bpp(l->formats,
550 l->nformats,
551 l->fmt[MSM_VFE_PAD_SINK].code);
552 tmp = pixel_clock[j] * bpp / 64;
553 }
554
555 if (min_rate < tmp)
556 min_rate = tmp;
557 }
558
559 camss_add_clock_margin(&min_rate);
560
561 rate = clk_get_rate(clock->clk);
562 if (rate < min_rate)
563 return -EBUSY;
564 }
565 }
566
567 return 0;
568}
569
570
571
572
573
574
575
576static int vfe_get(struct vfe_device *vfe)
577{
578 int ret;
579
580 mutex_lock(&vfe->power_lock);
581
582 if (vfe->power_count == 0) {
583 ret = vfe->ops->pm_domain_on(vfe);
584 if (ret < 0)
585 goto error_pm_domain;
586
587 ret = pm_runtime_resume_and_get(vfe->camss->dev);
588 if (ret < 0)
589 goto error_domain_off;
590
591 ret = vfe_set_clock_rates(vfe);
592 if (ret < 0)
593 goto error_pm_runtime_get;
594
595 ret = camss_enable_clocks(vfe->nclocks, vfe->clock,
596 vfe->camss->dev);
597 if (ret < 0)
598 goto error_pm_runtime_get;
599
600 ret = vfe_reset(vfe);
601 if (ret < 0)
602 goto error_reset;
603
604 vfe_reset_output_maps(vfe);
605
606 vfe_init_outputs(vfe);
607 } else {
608 ret = vfe_check_clock_rates(vfe);
609 if (ret < 0)
610 goto error_pm_runtime_get;
611 }
612 vfe->power_count++;
613
614 mutex_unlock(&vfe->power_lock);
615
616 return 0;
617
618error_reset:
619 camss_disable_clocks(vfe->nclocks, vfe->clock);
620
621error_pm_runtime_get:
622 pm_runtime_put_sync(vfe->camss->dev);
623error_domain_off:
624 vfe->ops->pm_domain_off(vfe);
625
626error_pm_domain:
627 mutex_unlock(&vfe->power_lock);
628
629 return ret;
630}
631
632
633
634
635
636static void vfe_put(struct vfe_device *vfe)
637{
638 mutex_lock(&vfe->power_lock);
639
640 if (vfe->power_count == 0) {
641 dev_err(vfe->camss->dev, "vfe power off on power_count == 0\n");
642 goto exit;
643 } else if (vfe->power_count == 1) {
644 if (vfe->was_streaming) {
645 vfe->was_streaming = 0;
646 vfe->ops->vfe_halt(vfe);
647 }
648 camss_disable_clocks(vfe->nclocks, vfe->clock);
649 pm_runtime_put_sync(vfe->camss->dev);
650 vfe->ops->pm_domain_off(vfe);
651 }
652
653 vfe->power_count--;
654
655exit:
656 mutex_unlock(&vfe->power_lock);
657}
658
659
660
661
662
663
664
665
666
667
668
669int vfe_flush_buffers(struct camss_video *vid,
670 enum vb2_buffer_state state)
671{
672 struct vfe_line *line = container_of(vid, struct vfe_line, video_out);
673 struct vfe_device *vfe = to_vfe(line);
674 struct vfe_output *output;
675 unsigned long flags;
676
677 output = &line->output;
678
679 spin_lock_irqsave(&vfe->output_lock, flags);
680
681 vfe_buf_flush_pending(output, state);
682
683 if (output->buf[0])
684 vb2_buffer_done(&output->buf[0]->vb.vb2_buf, state);
685
686 if (output->buf[1])
687 vb2_buffer_done(&output->buf[1]->vb.vb2_buf, state);
688
689 if (output->last_buffer) {
690 vb2_buffer_done(&output->last_buffer->vb.vb2_buf, state);
691 output->last_buffer = NULL;
692 }
693
694 spin_unlock_irqrestore(&vfe->output_lock, flags);
695
696 return 0;
697}
698
699
700
701
702
703
704
705
706static int vfe_set_power(struct v4l2_subdev *sd, int on)
707{
708 struct vfe_line *line = v4l2_get_subdevdata(sd);
709 struct vfe_device *vfe = to_vfe(line);
710 int ret;
711
712 if (on) {
713 ret = vfe_get(vfe);
714 if (ret < 0)
715 return ret;
716
717 vfe->ops->hw_version_read(vfe, vfe->camss->dev);
718 } else {
719 vfe_put(vfe);
720 }
721
722 return 0;
723}
724
725
726
727
728
729
730
731
732
733
734static int vfe_set_stream(struct v4l2_subdev *sd, int enable)
735{
736 struct vfe_line *line = v4l2_get_subdevdata(sd);
737 struct vfe_device *vfe = to_vfe(line);
738 int ret;
739
740 if (enable) {
741 ret = vfe->ops->vfe_enable(line);
742 if (ret < 0)
743 dev_err(vfe->camss->dev,
744 "Failed to enable vfe outputs\n");
745 } else {
746 ret = vfe->ops->vfe_disable(line);
747 if (ret < 0)
748 dev_err(vfe->camss->dev,
749 "Failed to disable vfe outputs\n");
750 }
751
752 return ret;
753}
754
755
756
757
758
759
760
761
762
763
764static struct v4l2_mbus_framefmt *
765__vfe_get_format(struct vfe_line *line,
766 struct v4l2_subdev_state *sd_state,
767 unsigned int pad,
768 enum v4l2_subdev_format_whence which)
769{
770 if (which == V4L2_SUBDEV_FORMAT_TRY)
771 return v4l2_subdev_get_try_format(&line->subdev, sd_state,
772 pad);
773
774 return &line->fmt[pad];
775}
776
777
778
779
780
781
782
783
784
785static struct v4l2_rect *
786__vfe_get_compose(struct vfe_line *line,
787 struct v4l2_subdev_state *sd_state,
788 enum v4l2_subdev_format_whence which)
789{
790 if (which == V4L2_SUBDEV_FORMAT_TRY)
791 return v4l2_subdev_get_try_compose(&line->subdev, sd_state,
792 MSM_VFE_PAD_SINK);
793
794 return &line->compose;
795}
796
797
798
799
800
801
802
803
804
805static struct v4l2_rect *
806__vfe_get_crop(struct vfe_line *line,
807 struct v4l2_subdev_state *sd_state,
808 enum v4l2_subdev_format_whence which)
809{
810 if (which == V4L2_SUBDEV_FORMAT_TRY)
811 return v4l2_subdev_get_try_crop(&line->subdev, sd_state,
812 MSM_VFE_PAD_SRC);
813
814 return &line->crop;
815}
816
817
818
819
820
821
822
823
824
825static void vfe_try_format(struct vfe_line *line,
826 struct v4l2_subdev_state *sd_state,
827 unsigned int pad,
828 struct v4l2_mbus_framefmt *fmt,
829 enum v4l2_subdev_format_whence which)
830{
831 unsigned int i;
832 u32 code;
833
834 switch (pad) {
835 case MSM_VFE_PAD_SINK:
836
837
838 for (i = 0; i < line->nformats; i++)
839 if (fmt->code == line->formats[i].code)
840 break;
841
842
843 if (i >= line->nformats)
844 fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
845
846 fmt->width = clamp_t(u32, fmt->width, 1, 8191);
847 fmt->height = clamp_t(u32, fmt->height, 1, 8191);
848
849 fmt->field = V4L2_FIELD_NONE;
850 fmt->colorspace = V4L2_COLORSPACE_SRGB;
851
852 break;
853
854 case MSM_VFE_PAD_SRC:
855
856 code = fmt->code;
857
858 *fmt = *__vfe_get_format(line, sd_state, MSM_VFE_PAD_SINK,
859 which);
860
861 fmt->code = vfe_src_pad_code(line, fmt->code, 0, code);
862
863 if (line->id == VFE_LINE_PIX) {
864 struct v4l2_rect *rect;
865
866 rect = __vfe_get_crop(line, sd_state, which);
867
868 fmt->width = rect->width;
869 fmt->height = rect->height;
870 }
871
872 break;
873 }
874
875 fmt->colorspace = V4L2_COLORSPACE_SRGB;
876}
877
878
879
880
881
882
883
884
885static void vfe_try_compose(struct vfe_line *line,
886 struct v4l2_subdev_state *sd_state,
887 struct v4l2_rect *rect,
888 enum v4l2_subdev_format_whence which)
889{
890 struct v4l2_mbus_framefmt *fmt;
891
892 fmt = __vfe_get_format(line, sd_state, MSM_VFE_PAD_SINK, which);
893
894 if (rect->width > fmt->width)
895 rect->width = fmt->width;
896
897 if (rect->height > fmt->height)
898 rect->height = fmt->height;
899
900 if (fmt->width > rect->width * SCALER_RATIO_MAX)
901 rect->width = (fmt->width + SCALER_RATIO_MAX - 1) /
902 SCALER_RATIO_MAX;
903
904 rect->width &= ~0x1;
905
906 if (fmt->height > rect->height * SCALER_RATIO_MAX)
907 rect->height = (fmt->height + SCALER_RATIO_MAX - 1) /
908 SCALER_RATIO_MAX;
909
910 if (rect->width < 16)
911 rect->width = 16;
912
913 if (rect->height < 4)
914 rect->height = 4;
915}
916
917
918
919
920
921
922
923
924static void vfe_try_crop(struct vfe_line *line,
925 struct v4l2_subdev_state *sd_state,
926 struct v4l2_rect *rect,
927 enum v4l2_subdev_format_whence which)
928{
929 struct v4l2_rect *compose;
930
931 compose = __vfe_get_compose(line, sd_state, which);
932
933 if (rect->width > compose->width)
934 rect->width = compose->width;
935
936 if (rect->width + rect->left > compose->width)
937 rect->left = compose->width - rect->width;
938
939 if (rect->height > compose->height)
940 rect->height = compose->height;
941
942 if (rect->height + rect->top > compose->height)
943 rect->top = compose->height - rect->height;
944
945
946 rect->left += (rect->width & 0xf) >> 1;
947 rect->width &= ~0xf;
948
949 if (rect->width < 16) {
950 rect->left = 0;
951 rect->width = 16;
952 }
953
954 if (rect->height < 4) {
955 rect->top = 0;
956 rect->height = 4;
957 }
958}
959
960
961
962
963
964
965
966
967
968static int vfe_enum_mbus_code(struct v4l2_subdev *sd,
969 struct v4l2_subdev_state *sd_state,
970 struct v4l2_subdev_mbus_code_enum *code)
971{
972 struct vfe_line *line = v4l2_get_subdevdata(sd);
973
974 if (code->pad == MSM_VFE_PAD_SINK) {
975 if (code->index >= line->nformats)
976 return -EINVAL;
977
978 code->code = line->formats[code->index].code;
979 } else {
980 struct v4l2_mbus_framefmt *sink_fmt;
981
982 sink_fmt = __vfe_get_format(line, sd_state, MSM_VFE_PAD_SINK,
983 code->which);
984
985 code->code = vfe_src_pad_code(line, sink_fmt->code,
986 code->index, 0);
987 if (!code->code)
988 return -EINVAL;
989 }
990
991 return 0;
992}
993
994
995
996
997
998
999
1000
1001
1002static int vfe_enum_frame_size(struct v4l2_subdev *sd,
1003 struct v4l2_subdev_state *sd_state,
1004 struct v4l2_subdev_frame_size_enum *fse)
1005{
1006 struct vfe_line *line = v4l2_get_subdevdata(sd);
1007 struct v4l2_mbus_framefmt format;
1008
1009 if (fse->index != 0)
1010 return -EINVAL;
1011
1012 format.code = fse->code;
1013 format.width = 1;
1014 format.height = 1;
1015 vfe_try_format(line, sd_state, fse->pad, &format, fse->which);
1016 fse->min_width = format.width;
1017 fse->min_height = format.height;
1018
1019 if (format.code != fse->code)
1020 return -EINVAL;
1021
1022 format.code = fse->code;
1023 format.width = -1;
1024 format.height = -1;
1025 vfe_try_format(line, sd_state, fse->pad, &format, fse->which);
1026 fse->max_width = format.width;
1027 fse->max_height = format.height;
1028
1029 return 0;
1030}
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040static int vfe_get_format(struct v4l2_subdev *sd,
1041 struct v4l2_subdev_state *sd_state,
1042 struct v4l2_subdev_format *fmt)
1043{
1044 struct vfe_line *line = v4l2_get_subdevdata(sd);
1045 struct v4l2_mbus_framefmt *format;
1046
1047 format = __vfe_get_format(line, sd_state, fmt->pad, fmt->which);
1048 if (format == NULL)
1049 return -EINVAL;
1050
1051 fmt->format = *format;
1052
1053 return 0;
1054}
1055
1056static int vfe_set_selection(struct v4l2_subdev *sd,
1057 struct v4l2_subdev_state *sd_state,
1058 struct v4l2_subdev_selection *sel);
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068static int vfe_set_format(struct v4l2_subdev *sd,
1069 struct v4l2_subdev_state *sd_state,
1070 struct v4l2_subdev_format *fmt)
1071{
1072 struct vfe_line *line = v4l2_get_subdevdata(sd);
1073 struct v4l2_mbus_framefmt *format;
1074
1075 format = __vfe_get_format(line, sd_state, fmt->pad, fmt->which);
1076 if (format == NULL)
1077 return -EINVAL;
1078
1079 vfe_try_format(line, sd_state, fmt->pad, &fmt->format, fmt->which);
1080 *format = fmt->format;
1081
1082 if (fmt->pad == MSM_VFE_PAD_SINK) {
1083 struct v4l2_subdev_selection sel = { 0 };
1084 int ret;
1085
1086
1087 format = __vfe_get_format(line, sd_state, MSM_VFE_PAD_SRC,
1088 fmt->which);
1089
1090 *format = fmt->format;
1091 vfe_try_format(line, sd_state, MSM_VFE_PAD_SRC, format,
1092 fmt->which);
1093
1094 if (line->id != VFE_LINE_PIX)
1095 return 0;
1096
1097
1098 sel.which = fmt->which;
1099 sel.pad = MSM_VFE_PAD_SINK;
1100 sel.target = V4L2_SEL_TGT_COMPOSE;
1101 sel.r.width = fmt->format.width;
1102 sel.r.height = fmt->format.height;
1103 ret = vfe_set_selection(sd, sd_state, &sel);
1104 if (ret < 0)
1105 return ret;
1106 }
1107
1108 return 0;
1109}
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119static int vfe_get_selection(struct v4l2_subdev *sd,
1120 struct v4l2_subdev_state *sd_state,
1121 struct v4l2_subdev_selection *sel)
1122{
1123 struct vfe_line *line = v4l2_get_subdevdata(sd);
1124 struct v4l2_subdev_format fmt = { 0 };
1125 struct v4l2_rect *rect;
1126 int ret;
1127
1128 if (line->id != VFE_LINE_PIX)
1129 return -EINVAL;
1130
1131 if (sel->pad == MSM_VFE_PAD_SINK)
1132 switch (sel->target) {
1133 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
1134 fmt.pad = sel->pad;
1135 fmt.which = sel->which;
1136 ret = vfe_get_format(sd, sd_state, &fmt);
1137 if (ret < 0)
1138 return ret;
1139
1140 sel->r.left = 0;
1141 sel->r.top = 0;
1142 sel->r.width = fmt.format.width;
1143 sel->r.height = fmt.format.height;
1144 break;
1145 case V4L2_SEL_TGT_COMPOSE:
1146 rect = __vfe_get_compose(line, sd_state, sel->which);
1147 if (rect == NULL)
1148 return -EINVAL;
1149
1150 sel->r = *rect;
1151 break;
1152 default:
1153 return -EINVAL;
1154 }
1155 else if (sel->pad == MSM_VFE_PAD_SRC)
1156 switch (sel->target) {
1157 case V4L2_SEL_TGT_CROP_BOUNDS:
1158 rect = __vfe_get_compose(line, sd_state, sel->which);
1159 if (rect == NULL)
1160 return -EINVAL;
1161
1162 sel->r.left = rect->left;
1163 sel->r.top = rect->top;
1164 sel->r.width = rect->width;
1165 sel->r.height = rect->height;
1166 break;
1167 case V4L2_SEL_TGT_CROP:
1168 rect = __vfe_get_crop(line, sd_state, sel->which);
1169 if (rect == NULL)
1170 return -EINVAL;
1171
1172 sel->r = *rect;
1173 break;
1174 default:
1175 return -EINVAL;
1176 }
1177
1178 return 0;
1179}
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189static int vfe_set_selection(struct v4l2_subdev *sd,
1190 struct v4l2_subdev_state *sd_state,
1191 struct v4l2_subdev_selection *sel)
1192{
1193 struct vfe_line *line = v4l2_get_subdevdata(sd);
1194 struct v4l2_rect *rect;
1195 int ret;
1196
1197 if (line->id != VFE_LINE_PIX)
1198 return -EINVAL;
1199
1200 if (sel->target == V4L2_SEL_TGT_COMPOSE &&
1201 sel->pad == MSM_VFE_PAD_SINK) {
1202 struct v4l2_subdev_selection crop = { 0 };
1203
1204 rect = __vfe_get_compose(line, sd_state, sel->which);
1205 if (rect == NULL)
1206 return -EINVAL;
1207
1208 vfe_try_compose(line, sd_state, &sel->r, sel->which);
1209 *rect = sel->r;
1210
1211
1212 crop.which = sel->which;
1213 crop.pad = MSM_VFE_PAD_SRC;
1214 crop.target = V4L2_SEL_TGT_CROP;
1215 crop.r = *rect;
1216 ret = vfe_set_selection(sd, sd_state, &crop);
1217 } else if (sel->target == V4L2_SEL_TGT_CROP &&
1218 sel->pad == MSM_VFE_PAD_SRC) {
1219 struct v4l2_subdev_format fmt = { 0 };
1220
1221 rect = __vfe_get_crop(line, sd_state, sel->which);
1222 if (rect == NULL)
1223 return -EINVAL;
1224
1225 vfe_try_crop(line, sd_state, &sel->r, sel->which);
1226 *rect = sel->r;
1227
1228
1229 fmt.which = sel->which;
1230 fmt.pad = MSM_VFE_PAD_SRC;
1231 ret = vfe_get_format(sd, sd_state, &fmt);
1232 if (ret < 0)
1233 return ret;
1234
1235 fmt.format.width = rect->width;
1236 fmt.format.height = rect->height;
1237 ret = vfe_set_format(sd, sd_state, &fmt);
1238 } else {
1239 ret = -EINVAL;
1240 }
1241
1242 return ret;
1243}
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254static int vfe_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1255{
1256 struct v4l2_subdev_format format = {
1257 .pad = MSM_VFE_PAD_SINK,
1258 .which = fh ? V4L2_SUBDEV_FORMAT_TRY :
1259 V4L2_SUBDEV_FORMAT_ACTIVE,
1260 .format = {
1261 .code = MEDIA_BUS_FMT_UYVY8_2X8,
1262 .width = 1920,
1263 .height = 1080
1264 }
1265 };
1266
1267 return vfe_set_format(sd, fh ? fh->state : NULL, &format);
1268}
1269
1270
1271
1272
1273
1274
1275
1276
1277int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
1278 const struct resources *res, u8 id)
1279{
1280 struct device *dev = camss->dev;
1281 struct platform_device *pdev = to_platform_device(dev);
1282 struct resource *r;
1283 int i, j;
1284 int ret;
1285
1286 switch (camss->version) {
1287 case CAMSS_8x16:
1288 vfe->ops = &vfe_ops_4_1;
1289 break;
1290 case CAMSS_8x96:
1291 vfe->ops = &vfe_ops_4_7;
1292 break;
1293 case CAMSS_660:
1294 vfe->ops = &vfe_ops_4_8;
1295 break;
1296
1297 case CAMSS_845:
1298 vfe->ops = &vfe_ops_170;
1299 break;
1300 default:
1301 return -EINVAL;
1302 }
1303 vfe->ops->subdev_init(dev, vfe);
1304
1305
1306
1307 vfe->base = devm_platform_ioremap_resource_byname(pdev, res->reg[0]);
1308 if (IS_ERR(vfe->base)) {
1309 dev_err(dev, "could not map memory\n");
1310 return PTR_ERR(vfe->base);
1311 }
1312
1313
1314
1315 r = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
1316 res->interrupt[0]);
1317 if (!r) {
1318 dev_err(dev, "missing IRQ\n");
1319 return -EINVAL;
1320 }
1321
1322 vfe->irq = r->start;
1323 snprintf(vfe->irq_name, sizeof(vfe->irq_name), "%s_%s%d",
1324 dev_name(dev), MSM_VFE_NAME, vfe->id);
1325 ret = devm_request_irq(dev, vfe->irq, vfe->ops->isr,
1326 IRQF_TRIGGER_RISING, vfe->irq_name, vfe);
1327 if (ret < 0) {
1328 dev_err(dev, "request_irq failed: %d\n", ret);
1329 return ret;
1330 }
1331
1332
1333
1334 vfe->nclocks = 0;
1335 while (res->clock[vfe->nclocks])
1336 vfe->nclocks++;
1337
1338 vfe->clock = devm_kcalloc(dev, vfe->nclocks, sizeof(*vfe->clock),
1339 GFP_KERNEL);
1340 if (!vfe->clock)
1341 return -ENOMEM;
1342
1343 for (i = 0; i < vfe->nclocks; i++) {
1344 struct camss_clock *clock = &vfe->clock[i];
1345
1346 clock->clk = devm_clk_get(dev, res->clock[i]);
1347 if (IS_ERR(clock->clk))
1348 return PTR_ERR(clock->clk);
1349
1350 clock->name = res->clock[i];
1351
1352 clock->nfreqs = 0;
1353 while (res->clock_rate[i][clock->nfreqs])
1354 clock->nfreqs++;
1355
1356 if (!clock->nfreqs) {
1357 clock->freq = NULL;
1358 continue;
1359 }
1360
1361 clock->freq = devm_kcalloc(dev,
1362 clock->nfreqs,
1363 sizeof(*clock->freq),
1364 GFP_KERNEL);
1365 if (!clock->freq)
1366 return -ENOMEM;
1367
1368 for (j = 0; j < clock->nfreqs; j++)
1369 clock->freq[j] = res->clock_rate[i][j];
1370 }
1371
1372 mutex_init(&vfe->power_lock);
1373 vfe->power_count = 0;
1374
1375 mutex_init(&vfe->stream_lock);
1376 vfe->stream_count = 0;
1377
1378 spin_lock_init(&vfe->output_lock);
1379
1380 vfe->camss = camss;
1381 vfe->id = id;
1382 vfe->reg_update = 0;
1383
1384 for (i = VFE_LINE_RDI0; i < vfe->line_num; i++) {
1385 struct vfe_line *l = &vfe->line[i];
1386
1387 l->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1388 l->video_out.camss = camss;
1389 l->id = i;
1390 init_completion(&l->output.sof);
1391 init_completion(&l->output.reg_update);
1392
1393 if (camss->version == CAMSS_8x16) {
1394 if (i == VFE_LINE_PIX) {
1395 l->formats = formats_pix_8x16;
1396 l->nformats = ARRAY_SIZE(formats_pix_8x16);
1397 } else {
1398 l->formats = formats_rdi_8x16;
1399 l->nformats = ARRAY_SIZE(formats_rdi_8x16);
1400 }
1401 } else if (camss->version == CAMSS_8x96 ||
1402 camss->version == CAMSS_660) {
1403 if (i == VFE_LINE_PIX) {
1404 l->formats = formats_pix_8x96;
1405 l->nformats = ARRAY_SIZE(formats_pix_8x96);
1406 } else {
1407 l->formats = formats_rdi_8x96;
1408 l->nformats = ARRAY_SIZE(formats_rdi_8x96);
1409 }
1410 } else if (camss->version == CAMSS_845) {
1411 l->formats = formats_rdi_845;
1412 l->nformats = ARRAY_SIZE(formats_rdi_845);
1413 } else {
1414 return -EINVAL;
1415 }
1416 }
1417
1418 init_completion(&vfe->reset_complete);
1419 init_completion(&vfe->halt_complete);
1420
1421 return 0;
1422}
1423
1424
1425
1426
1427
1428
1429void msm_vfe_get_vfe_id(struct media_entity *entity, u8 *id)
1430{
1431 struct v4l2_subdev *sd;
1432 struct vfe_line *line;
1433 struct vfe_device *vfe;
1434
1435 sd = media_entity_to_v4l2_subdev(entity);
1436 line = v4l2_get_subdevdata(sd);
1437 vfe = to_vfe(line);
1438
1439 *id = vfe->id;
1440}
1441
1442
1443
1444
1445
1446
1447void msm_vfe_get_vfe_line_id(struct media_entity *entity, enum vfe_line_id *id)
1448{
1449 struct v4l2_subdev *sd;
1450 struct vfe_line *line;
1451
1452 sd = media_entity_to_v4l2_subdev(entity);
1453 line = v4l2_get_subdevdata(sd);
1454
1455 *id = line->id;
1456}
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467static int vfe_link_setup(struct media_entity *entity,
1468 const struct media_pad *local,
1469 const struct media_pad *remote, u32 flags)
1470{
1471 if (flags & MEDIA_LNK_FL_ENABLED)
1472 if (media_entity_remote_pad(local))
1473 return -EBUSY;
1474
1475 return 0;
1476}
1477
1478static const struct v4l2_subdev_core_ops vfe_core_ops = {
1479 .s_power = vfe_set_power,
1480};
1481
1482static const struct v4l2_subdev_video_ops vfe_video_ops = {
1483 .s_stream = vfe_set_stream,
1484};
1485
1486static const struct v4l2_subdev_pad_ops vfe_pad_ops = {
1487 .enum_mbus_code = vfe_enum_mbus_code,
1488 .enum_frame_size = vfe_enum_frame_size,
1489 .get_fmt = vfe_get_format,
1490 .set_fmt = vfe_set_format,
1491 .get_selection = vfe_get_selection,
1492 .set_selection = vfe_set_selection,
1493};
1494
1495static const struct v4l2_subdev_ops vfe_v4l2_ops = {
1496 .core = &vfe_core_ops,
1497 .video = &vfe_video_ops,
1498 .pad = &vfe_pad_ops,
1499};
1500
1501static const struct v4l2_subdev_internal_ops vfe_v4l2_internal_ops = {
1502 .open = vfe_init_formats,
1503};
1504
1505static const struct media_entity_operations vfe_media_ops = {
1506 .link_setup = vfe_link_setup,
1507 .link_validate = v4l2_subdev_link_validate,
1508};
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522int msm_vfe_register_entities(struct vfe_device *vfe,
1523 struct v4l2_device *v4l2_dev)
1524{
1525 struct device *dev = vfe->camss->dev;
1526 struct v4l2_subdev *sd;
1527 struct media_pad *pads;
1528 struct camss_video *video_out;
1529 int ret;
1530 int i;
1531
1532 for (i = 0; i < vfe->line_num; i++) {
1533 char name[32];
1534
1535 sd = &vfe->line[i].subdev;
1536 pads = vfe->line[i].pads;
1537 video_out = &vfe->line[i].video_out;
1538
1539 v4l2_subdev_init(sd, &vfe_v4l2_ops);
1540 sd->internal_ops = &vfe_v4l2_internal_ops;
1541 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1542 if (i == VFE_LINE_PIX)
1543 snprintf(sd->name, ARRAY_SIZE(sd->name), "%s%d_%s",
1544 MSM_VFE_NAME, vfe->id, "pix");
1545 else
1546 snprintf(sd->name, ARRAY_SIZE(sd->name), "%s%d_%s%d",
1547 MSM_VFE_NAME, vfe->id, "rdi", i);
1548
1549 v4l2_set_subdevdata(sd, &vfe->line[i]);
1550
1551 ret = vfe_init_formats(sd, NULL);
1552 if (ret < 0) {
1553 dev_err(dev, "Failed to init format: %d\n", ret);
1554 goto error_init;
1555 }
1556
1557 pads[MSM_VFE_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
1558 pads[MSM_VFE_PAD_SRC].flags = MEDIA_PAD_FL_SOURCE;
1559
1560 sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
1561 sd->entity.ops = &vfe_media_ops;
1562 ret = media_entity_pads_init(&sd->entity, MSM_VFE_PADS_NUM,
1563 pads);
1564 if (ret < 0) {
1565 dev_err(dev, "Failed to init media entity: %d\n", ret);
1566 goto error_init;
1567 }
1568
1569 ret = v4l2_device_register_subdev(v4l2_dev, sd);
1570 if (ret < 0) {
1571 dev_err(dev, "Failed to register subdev: %d\n", ret);
1572 goto error_reg_subdev;
1573 }
1574
1575 video_out->ops = &vfe->video_ops;
1576 video_out->bpl_alignment = 8;
1577 video_out->line_based = 0;
1578 if (i == VFE_LINE_PIX) {
1579 video_out->bpl_alignment = 16;
1580 video_out->line_based = 1;
1581 }
1582 snprintf(name, ARRAY_SIZE(name), "%s%d_%s%d",
1583 MSM_VFE_NAME, vfe->id, "video", i);
1584 ret = msm_video_register(video_out, v4l2_dev, name,
1585 i == VFE_LINE_PIX ? 1 : 0);
1586 if (ret < 0) {
1587 dev_err(dev, "Failed to register video node: %d\n",
1588 ret);
1589 goto error_reg_video;
1590 }
1591
1592 ret = media_create_pad_link(
1593 &sd->entity, MSM_VFE_PAD_SRC,
1594 &video_out->vdev.entity, 0,
1595 MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED);
1596 if (ret < 0) {
1597 dev_err(dev, "Failed to link %s->%s entities: %d\n",
1598 sd->entity.name, video_out->vdev.entity.name,
1599 ret);
1600 goto error_link;
1601 }
1602 }
1603
1604 return 0;
1605
1606error_link:
1607 msm_video_unregister(video_out);
1608
1609error_reg_video:
1610 v4l2_device_unregister_subdev(sd);
1611
1612error_reg_subdev:
1613 media_entity_cleanup(&sd->entity);
1614
1615error_init:
1616 for (i--; i >= 0; i--) {
1617 sd = &vfe->line[i].subdev;
1618 video_out = &vfe->line[i].video_out;
1619
1620 msm_video_unregister(video_out);
1621 v4l2_device_unregister_subdev(sd);
1622 media_entity_cleanup(&sd->entity);
1623 }
1624
1625 return ret;
1626}
1627
1628
1629
1630
1631
1632void msm_vfe_unregister_entities(struct vfe_device *vfe)
1633{
1634 int i;
1635
1636 mutex_destroy(&vfe->power_lock);
1637 mutex_destroy(&vfe->stream_lock);
1638
1639 for (i = 0; i < vfe->line_num; i++) {
1640 struct v4l2_subdev *sd = &vfe->line[i].subdev;
1641 struct camss_video *video_out = &vfe->line[i].video_out;
1642
1643 msm_video_unregister(video_out);
1644 v4l2_device_unregister_subdev(sd);
1645 media_entity_cleanup(&sd->entity);
1646 }
1647}
1648
