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paulkocialkowskimchehab
paulkocialkowski
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mchehab
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media: sun6i-csi: Pass and store csi device directly in video code
The video structure is part of the main csi device structure, so pass pointers to that top-level structure directly. This makes it easier to navigate and access other elements. No functional change intended. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Reviewed-by: Maxime Ripard <maxime@cerno.tech> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
1 parent ab2e8d5 commit 92cc515

3 files changed

Lines changed: 57 additions & 51 deletions

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‎drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c‎

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -706,7 +706,7 @@ static int sun6i_csi_v4l2_setup(struct sun6i_csi_device *csi_dev)
706706

707707
/* Video */
708708

709-
ret = sun6i_video_setup(&csi_dev->video, csi_dev);
709+
ret = sun6i_video_setup(csi_dev);
710710
if (ret)
711711
goto error_v4l2_device;
712712

@@ -735,7 +735,7 @@ static int sun6i_csi_v4l2_setup(struct sun6i_csi_device *csi_dev)
735735
v4l2_async_nf_cleanup(notifier);
736736

737737
error_video:
738-
sun6i_video_cleanup(&csi_dev->video);
738+
sun6i_video_cleanup(csi_dev);
739739

740740
error_v4l2_device:
741741
v4l2_device_unregister(&v4l2->v4l2_dev);
@@ -756,7 +756,7 @@ static void sun6i_csi_v4l2_cleanup(struct sun6i_csi_device *csi_dev)
756756
media_device_unregister(&v4l2->media_dev);
757757
v4l2_async_nf_unregister(&v4l2->notifier);
758758
v4l2_async_nf_cleanup(&v4l2->notifier);
759-
sun6i_video_cleanup(&csi_dev->video);
759+
sun6i_video_cleanup(csi_dev);
760760
v4l2_device_unregister(&v4l2->v4l2_dev);
761761
v4l2_ctrl_handler_free(&v4l2->ctrl_handler);
762762
media_device_cleanup(&v4l2->media_dev);
@@ -787,7 +787,7 @@ static irqreturn_t sun6i_csi_interrupt(int irq, void *private)
787787
}
788788

789789
if (status & CSI_CH_INT_STA_FD_PD)
790-
sun6i_video_frame_done(&csi_dev->video);
790+
sun6i_video_frame_done(csi_dev);
791791

792792
regmap_write(regmap, CSI_CH_INT_STA_REG, status);
793793

‎drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c‎

Lines changed: 50 additions & 41 deletions
Original file line numberDiff line numberDiff line change
@@ -100,7 +100,8 @@ static int sun6i_video_queue_setup(struct vb2_queue *queue,
100100
unsigned int sizes[],
101101
struct device *alloc_devs[])
102102
{
103-
struct sun6i_video *video = vb2_get_drv_priv(queue);
103+
struct sun6i_csi_device *csi_dev = vb2_get_drv_priv(queue);
104+
struct sun6i_video *video = &csi_dev->video;
104105
unsigned int size = video->format.fmt.pix.sizeimage;
105106

106107
if (*planes_count)
@@ -114,8 +115,8 @@ static int sun6i_video_queue_setup(struct vb2_queue *queue,
114115

115116
static int sun6i_video_buffer_prepare(struct vb2_buffer *buffer)
116117
{
117-
struct sun6i_video *video = vb2_get_drv_priv(buffer->vb2_queue);
118-
struct sun6i_csi_device *csi_dev = video->csi_dev;
118+
struct sun6i_csi_device *csi_dev = vb2_get_drv_priv(buffer->vb2_queue);
119+
struct sun6i_video *video = &csi_dev->video;
119120
struct v4l2_device *v4l2_dev = &csi_dev->v4l2.v4l2_dev;
120121
struct vb2_v4l2_buffer *v4l2_buffer = to_vb2_v4l2_buffer(buffer);
121122
struct sun6i_csi_buffer *csi_buffer =
@@ -138,7 +139,8 @@ static int sun6i_video_buffer_prepare(struct vb2_buffer *buffer)
138139

139140
static void sun6i_video_buffer_queue(struct vb2_buffer *buffer)
140141
{
141-
struct sun6i_video *video = vb2_get_drv_priv(buffer->vb2_queue);
142+
struct sun6i_csi_device *csi_dev = vb2_get_drv_priv(buffer->vb2_queue);
143+
struct sun6i_video *video = &csi_dev->video;
142144
struct vb2_v4l2_buffer *v4l2_buffer = to_vb2_v4l2_buffer(buffer);
143145
struct sun6i_csi_buffer *csi_buffer =
144146
container_of(v4l2_buffer, struct sun6i_csi_buffer, v4l2_buffer);
@@ -153,7 +155,8 @@ static void sun6i_video_buffer_queue(struct vb2_buffer *buffer)
153155
static int sun6i_video_start_streaming(struct vb2_queue *queue,
154156
unsigned int count)
155157
{
156-
struct sun6i_video *video = vb2_get_drv_priv(queue);
158+
struct sun6i_csi_device *csi_dev = vb2_get_drv_priv(queue);
159+
struct sun6i_video *video = &csi_dev->video;
157160
struct video_device *video_dev = &video->video_dev;
158161
struct sun6i_csi_buffer *buf;
159162
struct sun6i_csi_buffer *next_buf;
@@ -185,7 +188,7 @@ static int sun6i_video_start_streaming(struct vb2_queue *queue,
185188
config.width = video->format.fmt.pix.width;
186189
config.height = video->format.fmt.pix.height;
187190

188-
ret = sun6i_csi_update_config(video->csi_dev, &config);
191+
ret = sun6i_csi_update_config(csi_dev, &config);
189192
if (ret < 0)
190193
goto error_media_pipeline;
191194

@@ -194,9 +197,9 @@ static int sun6i_video_start_streaming(struct vb2_queue *queue,
194197
buf = list_first_entry(&video->dma_queue,
195198
struct sun6i_csi_buffer, list);
196199
buf->queued_to_csi = true;
197-
sun6i_csi_update_buf_addr(video->csi_dev, buf->dma_addr);
200+
sun6i_csi_update_buf_addr(csi_dev, buf->dma_addr);
198201

199-
sun6i_csi_set_stream(video->csi_dev, true);
202+
sun6i_csi_set_stream(csi_dev, true);
200203

201204
/*
202205
* CSI will lookup the next dma buffer for next frame before the
@@ -217,7 +220,7 @@ static int sun6i_video_start_streaming(struct vb2_queue *queue,
217220
*/
218221
next_buf = list_next_entry(buf, list);
219222
next_buf->queued_to_csi = true;
220-
sun6i_csi_update_buf_addr(video->csi_dev, next_buf->dma_addr);
223+
sun6i_csi_update_buf_addr(csi_dev, next_buf->dma_addr);
221224

222225
spin_unlock_irqrestore(&video->dma_queue_lock, flags);
223226

@@ -228,7 +231,7 @@ static int sun6i_video_start_streaming(struct vb2_queue *queue,
228231
return 0;
229232

230233
error_stream:
231-
sun6i_csi_set_stream(video->csi_dev, false);
234+
sun6i_csi_set_stream(csi_dev, false);
232235

233236
error_media_pipeline:
234237
video_device_pipeline_stop(video_dev);
@@ -246,7 +249,8 @@ static int sun6i_video_start_streaming(struct vb2_queue *queue,
246249

247250
static void sun6i_video_stop_streaming(struct vb2_queue *queue)
248251
{
249-
struct sun6i_video *video = vb2_get_drv_priv(queue);
252+
struct sun6i_csi_device *csi_dev = vb2_get_drv_priv(queue);
253+
struct sun6i_video *video = &csi_dev->video;
250254
struct v4l2_subdev *subdev;
251255
unsigned long flags;
252256
struct sun6i_csi_buffer *buf;
@@ -255,7 +259,7 @@ static void sun6i_video_stop_streaming(struct vb2_queue *queue)
255259
if (subdev)
256260
v4l2_subdev_call(subdev, video, s_stream, 0);
257261

258-
sun6i_csi_set_stream(video->csi_dev, false);
262+
sun6i_csi_set_stream(csi_dev, false);
259263

260264
video_device_pipeline_stop(&video->video_dev);
261265

@@ -267,8 +271,9 @@ static void sun6i_video_stop_streaming(struct vb2_queue *queue)
267271
spin_unlock_irqrestore(&video->dma_queue_lock, flags);
268272
}
269273

270-
void sun6i_video_frame_done(struct sun6i_video *video)
274+
void sun6i_video_frame_done(struct sun6i_csi_device *csi_dev)
271275
{
276+
struct sun6i_video *video = &csi_dev->video;
272277
struct sun6i_csi_buffer *buf;
273278
struct sun6i_csi_buffer *next_buf;
274279
struct vb2_v4l2_buffer *v4l2_buffer;
@@ -278,7 +283,7 @@ void sun6i_video_frame_done(struct sun6i_video *video)
278283
buf = list_first_entry(&video->dma_queue,
279284
struct sun6i_csi_buffer, list);
280285
if (list_is_last(&buf->list, &video->dma_queue)) {
281-
dev_dbg(video->csi_dev->dev, "Frame dropped!\n");
286+
dev_dbg(csi_dev->dev, "Frame dropped!\n");
282287
goto complete;
283288
}
284289

@@ -290,8 +295,8 @@ void sun6i_video_frame_done(struct sun6i_video *video)
290295
*/
291296
if (!next_buf->queued_to_csi) {
292297
next_buf->queued_to_csi = true;
293-
sun6i_csi_update_buf_addr(video->csi_dev, next_buf->dma_addr);
294-
dev_dbg(video->csi_dev->dev, "Frame dropped!\n");
298+
sun6i_csi_update_buf_addr(csi_dev, next_buf->dma_addr);
299+
dev_dbg(csi_dev->dev, "Frame dropped!\n");
295300
goto complete;
296301
}
297302

@@ -305,9 +310,9 @@ void sun6i_video_frame_done(struct sun6i_video *video)
305310
if (!list_is_last(&next_buf->list, &video->dma_queue)) {
306311
next_buf = list_next_entry(next_buf, list);
307312
next_buf->queued_to_csi = true;
308-
sun6i_csi_update_buf_addr(video->csi_dev, next_buf->dma_addr);
313+
sun6i_csi_update_buf_addr(csi_dev, next_buf->dma_addr);
309314
} else {
310-
dev_dbg(video->csi_dev->dev, "Next frame will be dropped!\n");
315+
dev_dbg(csi_dev->dev, "Next frame will be dropped!\n");
311316
}
312317

313318
complete:
@@ -330,9 +335,8 @@ static const struct vb2_ops sun6i_video_queue_ops = {
330335
static int sun6i_video_querycap(struct file *file, void *private,
331336
struct v4l2_capability *capability)
332337
{
333-
struct sun6i_video *video = video_drvdata(file);
334-
struct sun6i_csi_device *csi_dev = video->csi_dev;
335-
struct video_device *video_dev = &video->video_dev;
338+
struct sun6i_csi_device *csi_dev = video_drvdata(file);
339+
struct video_device *video_dev = &csi_dev->video.video_dev;
336340

337341
strscpy(capability->driver, SUN6I_CSI_NAME, sizeof(capability->driver));
338342
strscpy(capability->card, video_dev->name, sizeof(capability->card));
@@ -358,7 +362,8 @@ static int sun6i_video_enum_fmt(struct file *file, void *private,
358362
static int sun6i_video_g_fmt(struct file *file, void *private,
359363
struct v4l2_format *format)
360364
{
361-
struct sun6i_video *video = video_drvdata(file);
365+
struct sun6i_csi_device *csi_dev = video_drvdata(file);
366+
struct sun6i_video *video = &csi_dev->video;
362367

363368
*format = video->format;
364369

@@ -413,7 +418,8 @@ static int sun6i_video_format_set(struct sun6i_video *video,
413418
static int sun6i_video_s_fmt(struct file *file, void *private,
414419
struct v4l2_format *format)
415420
{
416-
struct sun6i_video *video = video_drvdata(file);
421+
struct sun6i_csi_device *csi_dev = video_drvdata(file);
422+
struct sun6i_video *video = &csi_dev->video;
417423

418424
if (vb2_is_busy(&video->queue))
419425
return -EBUSY;
@@ -424,7 +430,8 @@ static int sun6i_video_s_fmt(struct file *file, void *private,
424430
static int sun6i_video_try_fmt(struct file *file, void *private,
425431
struct v4l2_format *format)
426432
{
427-
struct sun6i_video *video = video_drvdata(file);
433+
struct sun6i_csi_device *csi_dev = video_drvdata(file);
434+
struct sun6i_video *video = &csi_dev->video;
428435

429436
return sun6i_video_format_try(video, format);
430437
}
@@ -489,7 +496,8 @@ static const struct v4l2_ioctl_ops sun6i_video_ioctl_ops = {
489496

490497
static int sun6i_video_open(struct file *file)
491498
{
492-
struct sun6i_video *video = video_drvdata(file);
499+
struct sun6i_csi_device *csi_dev = video_drvdata(file);
500+
struct sun6i_video *video = &csi_dev->video;
493501
int ret = 0;
494502

495503
if (mutex_lock_interruptible(&video->lock))
@@ -505,7 +513,7 @@ static int sun6i_video_open(struct file *file)
505513

506514
/* Power on at first open. */
507515
if (v4l2_fh_is_singular_file(file)) {
508-
ret = sun6i_csi_set_power(video->csi_dev, true);
516+
ret = sun6i_csi_set_power(csi_dev, true);
509517
if (ret < 0)
510518
goto error_v4l2_fh;
511519
}
@@ -525,7 +533,8 @@ static int sun6i_video_open(struct file *file)
525533

526534
static int sun6i_video_close(struct file *file)
527535
{
528-
struct sun6i_video *video = video_drvdata(file);
536+
struct sun6i_csi_device *csi_dev = video_drvdata(file);
537+
struct sun6i_video *video = &csi_dev->video;
529538
bool last_close;
530539

531540
mutex_lock(&video->lock);
@@ -537,7 +546,7 @@ static int sun6i_video_close(struct file *file)
537546

538547
/* Power off at last close. */
539548
if (last_close)
540-
sun6i_csi_set_power(video->csi_dev, false);
549+
sun6i_csi_set_power(csi_dev, false);
541550

542551
mutex_unlock(&video->lock);
543552

@@ -574,26 +583,27 @@ static int sun6i_video_link_validate(struct media_link *link)
574583
{
575584
struct video_device *vdev = container_of(link->sink->entity,
576585
struct video_device, entity);
577-
struct sun6i_video *video = video_get_drvdata(vdev);
586+
struct sun6i_csi_device *csi_dev = video_get_drvdata(vdev);
587+
struct sun6i_video *video = &csi_dev->video;
578588
struct v4l2_subdev_format source_fmt;
579589
int ret;
580590

581591
video->mbus_code = 0;
582592

583593
if (!media_pad_remote_pad_first(link->sink->entity->pads)) {
584-
dev_info(video->csi_dev->dev,
585-
"video node %s pad not connected\n", vdev->name);
594+
dev_info(csi_dev->dev, "video node %s pad not connected\n",
595+
vdev->name);
586596
return -ENOLINK;
587597
}
588598

589599
ret = sun6i_video_link_validate_get_format(link->source, &source_fmt);
590600
if (ret < 0)
591601
return ret;
592602

593-
if (!sun6i_csi_is_format_supported(video->csi_dev,
603+
if (!sun6i_csi_is_format_supported(csi_dev,
594604
video->format.fmt.pix.pixelformat,
595605
source_fmt.format.code)) {
596-
dev_err(video->csi_dev->dev,
606+
dev_err(csi_dev->dev,
597607
"Unsupported pixformat: 0x%x with mbus code: 0x%x!\n",
598608
video->format.fmt.pix.pixelformat,
599609
source_fmt.format.code);
@@ -602,7 +612,7 @@ static int sun6i_video_link_validate(struct media_link *link)
602612

603613
if (source_fmt.format.width != video->format.fmt.pix.width ||
604614
source_fmt.format.height != video->format.fmt.pix.height) {
605-
dev_err(video->csi_dev->dev,
615+
dev_err(csi_dev->dev,
606616
"Wrong width or height %ux%u (%ux%u expected)\n",
607617
video->format.fmt.pix.width, video->format.fmt.pix.height,
608618
source_fmt.format.width, source_fmt.format.height);
@@ -620,9 +630,9 @@ static const struct media_entity_operations sun6i_video_media_ops = {
620630

621631
/* Video */
622632

623-
int sun6i_video_setup(struct sun6i_video *video,
624-
struct sun6i_csi_device *csi_dev)
633+
int sun6i_video_setup(struct sun6i_csi_device *csi_dev)
625634
{
635+
struct sun6i_video *video = &csi_dev->video;
626636
struct v4l2_device *v4l2_dev = &csi_dev->v4l2.v4l2_dev;
627637
struct video_device *video_dev = &video->video_dev;
628638
struct vb2_queue *queue = &video->queue;
@@ -631,8 +641,6 @@ int sun6i_video_setup(struct sun6i_video *video,
631641
struct v4l2_pix_format *pix_format = &format.fmt.pix;
632642
int ret;
633643

634-
video->csi_dev = csi_dev;
635-
636644
/* Media Entity */
637645

638646
video_dev->entity.ops = &sun6i_video_media_ops;
@@ -664,7 +672,7 @@ int sun6i_video_setup(struct sun6i_video *video,
664672
queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
665673
queue->lock = &video->lock;
666674
queue->dev = csi_dev->dev;
667-
queue->drv_priv = video;
675+
queue->drv_priv = csi_dev;
668676

669677
/* Make sure non-dropped frame. */
670678
queue->min_buffers_needed = 3;
@@ -697,7 +705,7 @@ int sun6i_video_setup(struct sun6i_video *video,
697705
video_dev->queue = queue;
698706
video_dev->lock = &video->lock;
699707

700-
video_set_drvdata(video_dev, video);
708+
video_set_drvdata(video_dev, csi_dev);
701709

702710
ret = video_register_device(video_dev, VFL_TYPE_VIDEO, -1);
703711
if (ret < 0) {
@@ -716,8 +724,9 @@ int sun6i_video_setup(struct sun6i_video *video,
716724
return ret;
717725
}
718726

719-
void sun6i_video_cleanup(struct sun6i_video *video)
727+
void sun6i_video_cleanup(struct sun6i_csi_device *csi_dev)
720728
{
729+
struct sun6i_video *video = &csi_dev->video;
721730
struct video_device *video_dev = &video->video_dev;
722731

723732
vb2_video_unregister_device(video_dev);

‎drivers/media/platform/sunxi/sun6i-csi/sun6i_video.h‎

Lines changed: 3 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -14,8 +14,6 @@
1414
struct sun6i_csi_device;
1515

1616
struct sun6i_video {
17-
struct sun6i_csi_device *csi_dev;
18-
1917
struct video_device video_dev;
2018
struct vb2_queue queue;
2119
struct mutex lock; /* Queue lock. */
@@ -29,10 +27,9 @@ struct sun6i_video {
2927
unsigned int sequence;
3028
};
3129

32-
int sun6i_video_setup(struct sun6i_video *video,
33-
struct sun6i_csi_device *csi_dev);
34-
void sun6i_video_cleanup(struct sun6i_video *video);
30+
int sun6i_video_setup(struct sun6i_csi_device *csi_dev);
31+
void sun6i_video_cleanup(struct sun6i_csi_device *csi_dev);
3532

36-
void sun6i_video_frame_done(struct sun6i_video *video);
33+
void sun6i_video_frame_done(struct sun6i_csi_device *csi_dev);
3734

3835
#endif /* __SUN6I_VIDEO_H__ */

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