1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd. */
3
4 #include <linux/kfifo.h>
5 #include <media/v4l2-common.h>
6 #include <media/v4l2-ioctl.h>
7 #include <media/videobuf2-core.h>
8 #include <media/videobuf2-vmalloc.h> /* for ISP statistics */
9 #include "dev.h"
10 #include "regs.h"
11 #include "isp_mipi_luma.h"
12
13 #define RKISP_ISP_LUMA_REQ_BUFS_MIN 2
14 #define RKISP_ISP_LUMA_REQ_BUFS_MAX 8
15
rkisp_luma_enum_fmt_meta_cap(struct file * file,void * priv,struct v4l2_fmtdesc * f)16 static int rkisp_luma_enum_fmt_meta_cap(struct file *file, void *priv,
17 struct v4l2_fmtdesc *f)
18 {
19 struct video_device *video = video_devdata(file);
20 struct rkisp_luma_vdev *luma_vdev = video_get_drvdata(video);
21
22 if (f->index > 0 || f->type != video->queue->type)
23 return -EINVAL;
24
25 f->pixelformat = luma_vdev->vdev_fmt.fmt.meta.dataformat;
26 return 0;
27 }
28
rkisp_luma_g_fmt_meta_cap(struct file * file,void * priv,struct v4l2_format * f)29 static int rkisp_luma_g_fmt_meta_cap(struct file *file, void *priv,
30 struct v4l2_format *f)
31 {
32 struct video_device *video = video_devdata(file);
33 struct rkisp_luma_vdev *luma_vdev = video_get_drvdata(video);
34 struct v4l2_meta_format *meta = &f->fmt.meta;
35
36 if (f->type != video->queue->type)
37 return -EINVAL;
38
39 memset(meta, 0, sizeof(*meta));
40 meta->dataformat = luma_vdev->vdev_fmt.fmt.meta.dataformat;
41 meta->buffersize = luma_vdev->vdev_fmt.fmt.meta.buffersize;
42
43 return 0;
44 }
45
rkisp_luma_querycap(struct file * file,void * priv,struct v4l2_capability * cap)46 static int rkisp_luma_querycap(struct file *file,
47 void *priv, struct v4l2_capability *cap)
48 {
49 struct video_device *vdev = video_devdata(file);
50 struct rkisp_luma_vdev *luma_vdev = video_get_drvdata(vdev);
51
52 strcpy(cap->driver, DRIVER_NAME);
53 snprintf(cap->driver, sizeof(cap->driver),
54 "%s_v%d", DRIVER_NAME,
55 luma_vdev->dev->isp_ver >> 4);
56 strlcpy(cap->card, vdev->name, sizeof(cap->card));
57 strlcpy(cap->bus_info, "platform: " DRIVER_NAME, sizeof(cap->bus_info));
58
59 return 0;
60 }
61
62 /* ISP video device IOCTLs */
63 static const struct v4l2_ioctl_ops rkisp_luma_ioctl = {
64 .vidioc_reqbufs = vb2_ioctl_reqbufs,
65 .vidioc_querybuf = vb2_ioctl_querybuf,
66 .vidioc_create_bufs = vb2_ioctl_create_bufs,
67 .vidioc_qbuf = vb2_ioctl_qbuf,
68 .vidioc_dqbuf = vb2_ioctl_dqbuf,
69 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
70 .vidioc_expbuf = vb2_ioctl_expbuf,
71 .vidioc_streamon = vb2_ioctl_streamon,
72 .vidioc_streamoff = vb2_ioctl_streamoff,
73 .vidioc_enum_fmt_meta_cap = rkisp_luma_enum_fmt_meta_cap,
74 .vidioc_g_fmt_meta_cap = rkisp_luma_g_fmt_meta_cap,
75 .vidioc_s_fmt_meta_cap = rkisp_luma_g_fmt_meta_cap,
76 .vidioc_try_fmt_meta_cap = rkisp_luma_g_fmt_meta_cap,
77 .vidioc_querycap = rkisp_luma_querycap
78 };
79
rkisp_luma_fh_open(struct file * filp)80 static int rkisp_luma_fh_open(struct file *filp)
81 {
82 struct rkisp_luma_vdev *params = video_drvdata(filp);
83 int ret;
84
85 if (!params->dev->is_probe_end)
86 return -EINVAL;
87
88 ret = v4l2_fh_open(filp);
89 if (!ret) {
90 ret = v4l2_pipeline_pm_get(¶ms->vnode.vdev.entity);
91 if (ret < 0)
92 vb2_fop_release(filp);
93 }
94
95 return ret;
96 }
97
rkisp_luma_fop_release(struct file * file)98 static int rkisp_luma_fop_release(struct file *file)
99 {
100 struct rkisp_luma_vdev *luma = video_drvdata(file);
101 int ret;
102
103 ret = vb2_fop_release(file);
104 if (!ret)
105 v4l2_pipeline_pm_put(&luma->vnode.vdev.entity);
106 return ret;
107 }
108
109 struct v4l2_file_operations rkisp_luma_fops = {
110 .mmap = vb2_fop_mmap,
111 .unlocked_ioctl = video_ioctl2,
112 .poll = vb2_fop_poll,
113 .open = rkisp_luma_fh_open,
114 .release = rkisp_luma_fop_release
115 };
116
rkisp_luma_vb2_queue_setup(struct vb2_queue * vq,unsigned int * num_buffers,unsigned int * num_planes,unsigned int sizes[],struct device * alloc_ctxs[])117 static int rkisp_luma_vb2_queue_setup(struct vb2_queue *vq,
118 unsigned int *num_buffers,
119 unsigned int *num_planes,
120 unsigned int sizes[],
121 struct device *alloc_ctxs[])
122 {
123 struct rkisp_luma_vdev *luma_vdev = vq->drv_priv;
124
125 *num_planes = 1;
126
127 *num_buffers = clamp_t(u32, *num_buffers, RKISP_ISP_LUMA_REQ_BUFS_MIN,
128 RKISP_ISP_LUMA_REQ_BUFS_MAX);
129
130 sizes[0] = sizeof(struct rkisp_isp2x_luma_buffer);
131
132 INIT_LIST_HEAD(&luma_vdev->stat);
133
134 return 0;
135 }
136
rkisp_luma_vb2_buf_queue(struct vb2_buffer * vb)137 static void rkisp_luma_vb2_buf_queue(struct vb2_buffer *vb)
138 {
139 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
140 struct rkisp_buffer *luma_buf = to_rkisp_buffer(vbuf);
141 struct vb2_queue *vq = vb->vb2_queue;
142 struct rkisp_luma_vdev *luma_dev = vq->drv_priv;
143
144 luma_buf->vaddr[0] = vb2_plane_vaddr(vb, 0);
145
146 spin_lock_bh(&luma_dev->rd_lock);
147 list_add_tail(&luma_buf->queue, &luma_dev->stat);
148 spin_unlock_bh(&luma_dev->rd_lock);
149 }
150
rkisp_luma_vb2_stop_streaming(struct vb2_queue * vq)151 static void rkisp_luma_vb2_stop_streaming(struct vb2_queue *vq)
152 {
153 struct rkisp_luma_vdev *luma_vdev = vq->drv_priv;
154 struct rkisp_buffer *buf;
155 unsigned long flags;
156 int i;
157
158 /* Make sure no new work queued in isr before draining wq */
159 spin_lock_irqsave(&luma_vdev->irq_lock, flags);
160 luma_vdev->streamon = false;
161 spin_unlock_irqrestore(&luma_vdev->irq_lock, flags);
162
163 tasklet_disable(&luma_vdev->rd_tasklet);
164
165 spin_lock_bh(&luma_vdev->rd_lock);
166 for (i = 0; i < RKISP_ISP_LUMA_REQ_BUFS_MAX; i++) {
167 if (list_empty(&luma_vdev->stat))
168 break;
169 buf = list_first_entry(&luma_vdev->stat,
170 struct rkisp_buffer, queue);
171 list_del(&buf->queue);
172 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
173 }
174 spin_unlock_bh(&luma_vdev->rd_lock);
175 }
176
177 static int
rkisp_luma_vb2_start_streaming(struct vb2_queue * queue,unsigned int count)178 rkisp_luma_vb2_start_streaming(struct vb2_queue *queue,
179 unsigned int count)
180 {
181 struct rkisp_luma_vdev *luma_vdev = queue->drv_priv;
182 u32 i;
183
184 for (i = 0; i < ISP2X_MIPI_RAW_MAX; i++) {
185 luma_vdev->ystat_isrcnt[i] = 0;
186 luma_vdev->ystat_rdflg[i] = false;
187 }
188
189 luma_vdev->streamon = true;
190 kfifo_reset(&luma_vdev->rd_kfifo);
191 tasklet_enable(&luma_vdev->rd_tasklet);
192
193 return 0;
194 }
195
196 static struct vb2_ops rkisp_luma_vb2_ops = {
197 .queue_setup = rkisp_luma_vb2_queue_setup,
198 .buf_queue = rkisp_luma_vb2_buf_queue,
199 .wait_prepare = vb2_ops_wait_prepare,
200 .wait_finish = vb2_ops_wait_finish,
201 .stop_streaming = rkisp_luma_vb2_stop_streaming,
202 .start_streaming = rkisp_luma_vb2_start_streaming,
203 };
204
rkisp_luma_init_vb2_queue(struct vb2_queue * q,struct rkisp_luma_vdev * luma_vdev)205 static int rkisp_luma_init_vb2_queue(struct vb2_queue *q,
206 struct rkisp_luma_vdev *luma_vdev)
207 {
208 q->type = V4L2_BUF_TYPE_META_CAPTURE;
209 q->io_modes = VB2_MMAP | VB2_USERPTR;
210 q->drv_priv = luma_vdev;
211 q->ops = &rkisp_luma_vb2_ops;
212 q->mem_ops = &vb2_vmalloc_memops;
213 q->buf_struct_size = sizeof(struct rkisp_buffer);
214 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
215 q->lock = &luma_vdev->dev->iqlock;
216 q->dev = luma_vdev->dev->dev;
217
218 return vb2_queue_init(q);
219 }
220
221 static void
rkisp_stats_send_luma(struct rkisp_luma_vdev * vdev,struct rkisp_luma_readout_work * work)222 rkisp_stats_send_luma(struct rkisp_luma_vdev *vdev,
223 struct rkisp_luma_readout_work *work)
224 {
225 unsigned int cur_frame_id;
226 struct rkisp_isp2x_luma_buffer *cur_stat_buf;
227 struct rkisp_buffer *cur_buf = NULL;
228 u32 i, j;
229
230 spin_lock(&vdev->rd_lock);
231 /* get one empty buffer */
232 if (!list_empty(&vdev->stat)) {
233 cur_buf = list_first_entry(&vdev->stat,
234 struct rkisp_buffer, queue);
235 list_del(&cur_buf->queue);
236 }
237 spin_unlock(&vdev->rd_lock);
238
239 if (!cur_buf) {
240 v4l2_warn(vdev->vnode.vdev.v4l2_dev,
241 "no luma buffer available\n");
242 return;
243 }
244
245 cur_stat_buf =
246 (struct rkisp_isp2x_luma_buffer *)(cur_buf->vaddr[0]);
247 if (!cur_stat_buf) {
248 v4l2_err(vdev->vnode.vdev.v4l2_dev,
249 "cur_stat_buf is NULL\n");
250 return;
251 }
252
253 cur_stat_buf->frame_id = work->frame_id;
254 cur_stat_buf->meas_type = work->meas_type;
255 for (i = 0; i < ISP2X_MIPI_RAW_MAX; i++) {
256 for (j = 0; j < ISP2X_MIPI_LUMA_MEAN_MAX; j++) {
257 cur_stat_buf->luma[i].exp_mean[j] =
258 work->luma[i].exp_mean[j];
259 }
260 }
261
262 cur_frame_id = cur_stat_buf->frame_id;
263 vb2_set_plane_payload(&cur_buf->vb.vb2_buf, 0,
264 sizeof(struct rkisp_isp2x_luma_buffer));
265 cur_buf->vb.sequence = cur_frame_id;
266 cur_buf->vb.vb2_buf.timestamp = work->timestamp;
267 vb2_buffer_done(&cur_buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
268 }
269
rkisp_luma_readout_task(unsigned long data)270 static void rkisp_luma_readout_task(unsigned long data)
271 {
272 unsigned int out = 0;
273 struct rkisp_luma_readout_work work;
274 struct rkisp_luma_vdev *vdev =
275 (struct rkisp_luma_vdev *)data;
276
277 while (!kfifo_is_empty(&vdev->rd_kfifo)) {
278 out = kfifo_out(&vdev->rd_kfifo,
279 &work, sizeof(work));
280 if (!out)
281 break;
282
283 if (work.readout == RKISP_ISP_READOUT_LUMA)
284 rkisp_stats_send_luma(vdev, &work);
285 }
286 }
287
rkisp_luma_isr(struct rkisp_luma_vdev * luma_vdev,u32 isp_stat)288 void rkisp_luma_isr(struct rkisp_luma_vdev *luma_vdev, u32 isp_stat)
289 {
290 void __iomem *base = luma_vdev->dev->base_addr;
291 u8 op_mode = luma_vdev->dev->hdr.op_mode;
292 unsigned int cur_frame_id =
293 atomic_read(&luma_vdev->dev->isp_sdev.frm_sync_seq) - 1;
294 enum rkisp_luma_frm_mode frm_mode;
295 bool send_task;
296 u32 i, value;
297
298 spin_lock(&luma_vdev->irq_lock);
299 if (!luma_vdev->streamon)
300 goto unlock;
301
302 switch (op_mode) {
303 case HDR_RDBK_FRAME2:
304 frm_mode = RKISP_LUMA_TWOFRM;
305 break;
306 case HDR_RDBK_FRAME3:
307 frm_mode = RKISP_LUMA_THREEFRM;
308 break;
309 case HDR_RDBK_FRAME1:
310 frm_mode = RKISP_LUMA_ONEFRM;
311 break;
312 default:
313 goto unlock;
314 }
315
316 if (isp_stat & RAW0_Y_STATE)
317 luma_vdev->ystat_isrcnt[0]++;
318
319 if (isp_stat & RAW1_Y_STATE)
320 luma_vdev->ystat_isrcnt[1]++;
321
322 if (isp_stat & RAW2_Y_STATE)
323 luma_vdev->ystat_isrcnt[2]++;
324
325 if (isp_stat & RAW0_WR_FRAME) {
326 if (luma_vdev->ystat_isrcnt[0] != RKISP_LUMA_YSTAT_ISR_NUM) {
327 v4l2_dbg(1, rkisp_debug, luma_vdev->vnode.vdev.v4l2_dev,
328 "missing raw0 y state isr, %d\n",
329 luma_vdev->ystat_isrcnt[0]);
330 luma_vdev->ystat_isrcnt[0] = RKISP_LUMA_YSTAT_ISR_NUM;
331 }
332 }
333 if (isp_stat & RAW1_WR_FRAME) {
334 if (luma_vdev->ystat_isrcnt[1] != RKISP_LUMA_YSTAT_ISR_NUM) {
335 v4l2_dbg(1, rkisp_debug, luma_vdev->vnode.vdev.v4l2_dev,
336 "missing raw1 y state isr, %d\n",
337 luma_vdev->ystat_isrcnt[1]);
338 luma_vdev->ystat_isrcnt[1] = RKISP_LUMA_YSTAT_ISR_NUM;
339 }
340 }
341 if (isp_stat & RAW2_WR_FRAME) {
342 if (luma_vdev->ystat_isrcnt[2] != RKISP_LUMA_YSTAT_ISR_NUM) {
343 v4l2_dbg(1, rkisp_debug, luma_vdev->vnode.vdev.v4l2_dev,
344 "missing raw2 y state isr, %d\n",
345 luma_vdev->ystat_isrcnt[2]);
346 luma_vdev->ystat_isrcnt[2] = RKISP_LUMA_YSTAT_ISR_NUM;
347 }
348 }
349
350 if (luma_vdev->ystat_isrcnt[0] == RKISP_LUMA_YSTAT_ISR_NUM && !luma_vdev->ystat_rdflg[0]) {
351 value = readl(base + CSI2RX_Y_STAT_CTRL);
352 value &= ~(SW_Y_STAT_RD_FRM_ID(0x3));
353 value |= (SW_Y_STAT_RD_FRM_ID(0x0) | SW_Y_STAT_RD_EN);
354 writel(value, base + CSI2RX_Y_STAT_CTRL);
355 for (i = 0; i < ISP2X_MIPI_LUMA_MEAN_MAX; i++)
356 luma_vdev->work.luma[0].exp_mean[i] =
357 readl(base + CSI2RX_Y_STAT_RO);
358
359 luma_vdev->ystat_rdflg[0] = true;
360 }
361 if (luma_vdev->ystat_isrcnt[1] == RKISP_LUMA_YSTAT_ISR_NUM && !luma_vdev->ystat_rdflg[1]) {
362 value = readl(base + CSI2RX_Y_STAT_CTRL);
363 value &= ~(SW_Y_STAT_RD_FRM_ID(0x3));
364 value |= (SW_Y_STAT_RD_FRM_ID(0x1) | SW_Y_STAT_RD_EN);
365 writel(value, base + CSI2RX_Y_STAT_CTRL);
366 for (i = 0; i < ISP2X_MIPI_LUMA_MEAN_MAX; i++)
367 luma_vdev->work.luma[1].exp_mean[i] =
368 readl(base + CSI2RX_Y_STAT_RO);
369
370 luma_vdev->ystat_rdflg[1] = true;
371 }
372 if (luma_vdev->ystat_isrcnt[2] == RKISP_LUMA_YSTAT_ISR_NUM && !luma_vdev->ystat_rdflg[2]) {
373 value = readl(base + CSI2RX_Y_STAT_CTRL);
374 value &= ~(SW_Y_STAT_RD_FRM_ID(0x3));
375 value |= (SW_Y_STAT_RD_FRM_ID(0x2) | SW_Y_STAT_RD_EN);
376 writel(value, base + CSI2RX_Y_STAT_CTRL);
377 for (i = 0; i < ISP2X_MIPI_LUMA_MEAN_MAX; i++)
378 luma_vdev->work.luma[2].exp_mean[i] =
379 readl(base + CSI2RX_Y_STAT_RO);
380
381 luma_vdev->ystat_rdflg[2] = true;
382 }
383
384 send_task = false;
385 if (frm_mode == RKISP_LUMA_THREEFRM) {
386 if (luma_vdev->ystat_rdflg[0] && luma_vdev->ystat_rdflg[1] &&
387 luma_vdev->ystat_rdflg[2])
388 send_task = true;
389 } else if (frm_mode == RKISP_LUMA_TWOFRM) {
390 if (luma_vdev->ystat_rdflg[0] && luma_vdev->ystat_rdflg[2])
391 send_task = true;
392 } else {
393 if (luma_vdev->ystat_rdflg[2])
394 send_task = true;
395 }
396
397 if (send_task) {
398 luma_vdev->work.readout = RKISP_ISP_READOUT_LUMA;
399 luma_vdev->work.timestamp = ktime_get_ns();
400 luma_vdev->work.frame_id = cur_frame_id;
401
402 if (frm_mode == RKISP_LUMA_THREEFRM)
403 luma_vdev->work.meas_type = ISP2X_RAW0_Y_STATE | ISP2X_RAW1_Y_STATE |
404 ISP2X_RAW2_Y_STATE;
405 else if (frm_mode == RKISP_LUMA_TWOFRM)
406 luma_vdev->work.meas_type = ISP2X_RAW0_Y_STATE | ISP2X_RAW2_Y_STATE;
407 else
408 luma_vdev->work.meas_type = ISP2X_RAW2_Y_STATE;
409
410 if (!kfifo_is_full(&luma_vdev->rd_kfifo))
411 kfifo_in(&luma_vdev->rd_kfifo,
412 &luma_vdev->work, sizeof(luma_vdev->work));
413 else
414 v4l2_err(luma_vdev->vnode.vdev.v4l2_dev,
415 "stats kfifo is full\n");
416
417 tasklet_schedule(&luma_vdev->rd_tasklet);
418
419 for (i = 0; i < ISP2X_MIPI_RAW_MAX; i++) {
420 luma_vdev->ystat_isrcnt[i] = 0;
421 luma_vdev->ystat_rdflg[i] = false;
422 }
423
424 memset(&luma_vdev->work, 0, sizeof(luma_vdev->work));
425 }
426
427 unlock:
428 spin_unlock(&luma_vdev->irq_lock);
429 }
430
rkisp_init_luma_vdev(struct rkisp_luma_vdev * luma_vdev)431 static void rkisp_init_luma_vdev(struct rkisp_luma_vdev *luma_vdev)
432 {
433 luma_vdev->vdev_fmt.fmt.meta.dataformat =
434 V4L2_META_FMT_RK_ISP1_STAT_LUMA;
435 luma_vdev->vdev_fmt.fmt.meta.buffersize =
436 sizeof(struct rkisp_isp2x_luma_buffer);
437 }
438
rkisp_register_luma_vdev(struct rkisp_luma_vdev * luma_vdev,struct v4l2_device * v4l2_dev,struct rkisp_device * dev)439 int rkisp_register_luma_vdev(struct rkisp_luma_vdev *luma_vdev,
440 struct v4l2_device *v4l2_dev,
441 struct rkisp_device *dev)
442 {
443 int ret;
444 struct rkisp_vdev_node *node = &luma_vdev->vnode;
445 struct video_device *vdev = &node->vdev;
446 struct media_entity *source, *sink;
447
448 luma_vdev->dev = dev;
449 if (dev->isp_ver != ISP_V20)
450 return 0;
451
452 INIT_LIST_HEAD(&luma_vdev->stat);
453 spin_lock_init(&luma_vdev->irq_lock);
454 spin_lock_init(&luma_vdev->rd_lock);
455
456 strlcpy(vdev->name, "rkisp-mipi-luma", sizeof(vdev->name));
457
458 vdev->ioctl_ops = &rkisp_luma_ioctl;
459 vdev->fops = &rkisp_luma_fops;
460 vdev->release = video_device_release_empty;
461 vdev->lock = &dev->iqlock;
462 vdev->v4l2_dev = v4l2_dev;
463 vdev->queue = &node->buf_queue;
464 vdev->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING;
465 vdev->vfl_dir = VFL_DIR_RX;
466 rkisp_luma_init_vb2_queue(vdev->queue, luma_vdev);
467 rkisp_init_luma_vdev(luma_vdev);
468 video_set_drvdata(vdev, luma_vdev);
469
470 node->pad.flags = MEDIA_PAD_FL_SINK;
471 ret = media_entity_pads_init(&vdev->entity, 1, &node->pad);
472 if (ret < 0)
473 goto err_release_queue;
474
475 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
476 if (ret < 0) {
477 dev_err(&vdev->dev,
478 "could not register Video for Linux device\n");
479 goto err_cleanup_media_entity;
480 }
481
482 source = &dev->isp_sdev.sd.entity;
483 sink = &luma_vdev->vnode.vdev.entity;
484 ret = media_create_pad_link(source, RKISP_ISP_PAD_SOURCE_STATS,
485 sink, 0, MEDIA_LNK_FL_ENABLED);
486 if (ret < 0)
487 goto err_unregister_video;
488
489 ret = kfifo_alloc(&luma_vdev->rd_kfifo,
490 RKISP_LUMA_READOUT_WORK_SIZE,
491 GFP_KERNEL);
492 if (ret) {
493 dev_err(&vdev->dev,
494 "kfifo_alloc failed with error %d\n",
495 ret);
496 goto err_unregister_video;
497 }
498
499 tasklet_init(&luma_vdev->rd_tasklet,
500 rkisp_luma_readout_task,
501 (unsigned long)luma_vdev);
502 tasklet_disable(&luma_vdev->rd_tasklet);
503
504 return 0;
505
506 err_unregister_video:
507 video_unregister_device(vdev);
508 err_cleanup_media_entity:
509 media_entity_cleanup(&vdev->entity);
510 err_release_queue:
511 vb2_queue_release(vdev->queue);
512 return ret;
513 }
514
rkisp_unregister_luma_vdev(struct rkisp_luma_vdev * luma_vdev)515 void rkisp_unregister_luma_vdev(struct rkisp_luma_vdev *luma_vdev)
516 {
517 struct rkisp_vdev_node *node = &luma_vdev->vnode;
518 struct video_device *vdev = &node->vdev;
519
520 if (luma_vdev->dev->isp_ver != ISP_V20)
521 return;
522 kfifo_free(&luma_vdev->rd_kfifo);
523 tasklet_kill(&luma_vdev->rd_tasklet);
524 video_unregister_device(vdev);
525 media_entity_cleanup(&vdev->entity);
526 vb2_queue_release(vdev->queue);
527 }
528