1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2 /*
3 * Rockchip ISP1 Driver - Base driver
4 *
5 * Copyright (C) 2019 Collabora, Ltd.
6 *
7 * Based on Rockchip ISP1 driver by Rockchip Electronics Co., Ltd.
8 * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
9 */
10
11 #include <linux/clk.h>
12 #include <linux/interrupt.h>
13 #include <linux/mfd/syscon.h>
14 #include <linux/module.h>
15 #include <linux/of.h>
16 #include <linux/of_graph.h>
17 #include <linux/platform_device.h>
18 #include <linux/pinctrl/consumer.h>
19 #include <linux/pm_runtime.h>
20 #include <media/v4l2-fwnode.h>
21 #include <media/v4l2-mc.h>
22
23 #include "rkisp1-common.h"
24 #include "rkisp1-csi.h"
25
26 /*
27 * ISP Details
28 * -----------
29 *
30 * ISP Comprises with:
31 * MIPI serial camera interface
32 * Image Signal Processing
33 * Many Image Enhancement Blocks
34 * Crop
35 * Resizer
36 * RBG display ready image
37 * Image Rotation
38 *
39 * ISP Block Diagram
40 * -----------------
41 * rkisp1-resizer.c rkisp1-capture.c
42 * |====================| |=======================|
43 * rkisp1-isp.c Main Picture Path
44 * |==========================| |===============================================|
45 * +-----------+ +--+--+--+--+ +--------+ +--------+ +-----------+
46 * | | | | | | | | | | | | |
47 * +--------+ |\ | | | | | | | -->| Crop |->| RSZ |------------->| |
48 * | MIPI |--->| \ | | | | | | | | | | | | | |
49 * +--------+ | | | | |IE|IE|IE|IE| | +--------+ +--------+ | Memory |
50 * |MUX|--->| ISP |->|0 |1 |2 |3 |---+ | Interface |
51 * +--------+ | | | | | | | | | | +--------+ +--------+ +--------+ | |
52 * |Parallel|--->| / | | | | | | | | | | | | | | | |
53 * +--------+ |/ | | | | | | | -->| Crop |->| RSZ |->| RGB |->| |
54 * | | | | | | | | | | | | Rotate | | |
55 * +-----------+ +--+--+--+--+ +--------+ +--------+ +--------+ +-----------+
56 * ^
57 * +--------+ | |===============================================|
58 * | DMA |------------------------------------+ Self Picture Path
59 * +--------+
60 *
61 * rkisp1-stats.c rkisp1-params.c
62 * |===============| |===============|
63 * +---------------+ +---------------+
64 * | | | |
65 * | ISP | | ISP |
66 * | | | |
67 * +---------------+ +---------------+
68 *
69 *
70 * Media Topology
71 * --------------
72 *
73 * +----------+ +----------+
74 * | Sensor 1 | | Sensor X |
75 * ------------ ... ------------
76 * | 0 | | 0 |
77 * +----------+ +----------+
78 * | |
79 * \----\ /----/
80 * | |
81 * v v
82 * +-------------+
83 * | 0 |
84 * ---------------
85 * | CSI-2 RX |
86 * --------------- +-----------+
87 * | 1 | | params |
88 * +-------------+ | (output) |
89 * | +-----------+
90 * v |
91 * +------+------+ |
92 * | 0 | 1 |<---------+
93 * |------+------|
94 * | ISP |
95 * |------+------|
96 * +-------------| 2 | 3 |----------+
97 * | +------+------+ |
98 * | | |
99 * v v v
100 * +- ---------+ +-----------+ +-----------+
101 * | 0 | | 0 | | stats |
102 * ------------- ------------- | (capture) |
103 * | Resizer | | Resizer | +-----------+
104 * ------------| ------------|
105 * | 1 | | 1 |
106 * +-----------+ +-----------+
107 * | |
108 * v v
109 * +-----------+ +-----------+
110 * | selfpath | | mainpath |
111 * | (capture) | | (capture) |
112 * +-----------+ +-----------+
113 */
114
115 struct rkisp1_isr_data {
116 const char *name;
117 irqreturn_t (*isr)(int irq, void *ctx);
118 u32 line_mask;
119 };
120
121 /* ----------------------------------------------------------------------------
122 * Sensor DT bindings
123 */
124
rkisp1_subdev_notifier_bound(struct v4l2_async_notifier * notifier,struct v4l2_subdev * sd,struct v4l2_async_connection * asc)125 static int rkisp1_subdev_notifier_bound(struct v4l2_async_notifier *notifier,
126 struct v4l2_subdev *sd,
127 struct v4l2_async_connection *asc)
128 {
129 struct rkisp1_device *rkisp1 =
130 container_of(notifier, struct rkisp1_device, notifier);
131 struct rkisp1_sensor_async *s_asd =
132 container_of(asc, struct rkisp1_sensor_async, asd);
133 int source_pad;
134 int ret;
135
136 s_asd->sd = sd;
137
138 source_pad = media_entity_get_fwnode_pad(&sd->entity, s_asd->source_ep,
139 MEDIA_PAD_FL_SOURCE);
140 if (source_pad < 0) {
141 dev_err(rkisp1->dev, "failed to find source pad for %s\n",
142 sd->name);
143 return source_pad;
144 }
145
146 if (s_asd->port == 0)
147 return rkisp1_csi_link_sensor(rkisp1, sd, s_asd, source_pad);
148
149 ret = media_create_pad_link(&sd->entity, source_pad,
150 &rkisp1->isp.sd.entity,
151 RKISP1_ISP_PAD_SINK_VIDEO,
152 !s_asd->index ? MEDIA_LNK_FL_ENABLED : 0);
153 if (ret) {
154 dev_err(rkisp1->dev, "failed to link source pad of %s\n",
155 sd->name);
156 return ret;
157 }
158
159 return 0;
160 }
161
rkisp1_subdev_notifier_complete(struct v4l2_async_notifier * notifier)162 static int rkisp1_subdev_notifier_complete(struct v4l2_async_notifier *notifier)
163 {
164 struct rkisp1_device *rkisp1 =
165 container_of(notifier, struct rkisp1_device, notifier);
166
167 return v4l2_device_register_subdev_nodes(&rkisp1->v4l2_dev);
168 }
169
rkisp1_subdev_notifier_destroy(struct v4l2_async_connection * asc)170 static void rkisp1_subdev_notifier_destroy(struct v4l2_async_connection *asc)
171 {
172 struct rkisp1_sensor_async *rk_asd =
173 container_of(asc, struct rkisp1_sensor_async, asd);
174
175 fwnode_handle_put(rk_asd->source_ep);
176 }
177
178 static const struct v4l2_async_notifier_operations rkisp1_subdev_notifier_ops = {
179 .bound = rkisp1_subdev_notifier_bound,
180 .complete = rkisp1_subdev_notifier_complete,
181 .destroy = rkisp1_subdev_notifier_destroy,
182 };
183
rkisp1_subdev_notifier_register(struct rkisp1_device * rkisp1)184 static int rkisp1_subdev_notifier_register(struct rkisp1_device *rkisp1)
185 {
186 struct v4l2_async_notifier *ntf = &rkisp1->notifier;
187 struct fwnode_handle *fwnode = dev_fwnode(rkisp1->dev);
188 struct fwnode_handle *ep;
189 unsigned int index = 0;
190 int ret = 0;
191
192 v4l2_async_nf_init(ntf, &rkisp1->v4l2_dev);
193
194 ntf->ops = &rkisp1_subdev_notifier_ops;
195
196 fwnode_graph_for_each_endpoint(fwnode, ep) {
197 struct fwnode_handle *port;
198 struct v4l2_fwnode_endpoint vep = { };
199 struct rkisp1_sensor_async *rk_asd;
200 struct fwnode_handle *source;
201 u32 reg = 0;
202
203 /* Select the bus type based on the port. */
204 port = fwnode_get_parent(ep);
205 fwnode_property_read_u32(port, "reg", ®);
206 fwnode_handle_put(port);
207
208 switch (reg) {
209 case 0:
210 /* MIPI CSI-2 port */
211 if (!rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
212 dev_err(rkisp1->dev,
213 "internal CSI must be available for port 0\n");
214 ret = -EINVAL;
215 break;
216 }
217
218 vep.bus_type = V4L2_MBUS_CSI2_DPHY;
219 break;
220
221 case 1:
222 /*
223 * Parallel port. The bus-type property in DT is
224 * mandatory for port 1, it will be used to determine if
225 * it's PARALLEL or BT656.
226 */
227 vep.bus_type = V4L2_MBUS_UNKNOWN;
228 break;
229 }
230
231 /* Parse the endpoint and validate the bus type. */
232 ret = v4l2_fwnode_endpoint_parse(ep, &vep);
233 if (ret) {
234 dev_err(rkisp1->dev, "failed to parse endpoint %pfw\n",
235 ep);
236 break;
237 }
238
239 if (vep.base.port == 1) {
240 if (vep.bus_type != V4L2_MBUS_PARALLEL &&
241 vep.bus_type != V4L2_MBUS_BT656) {
242 dev_err(rkisp1->dev,
243 "port 1 must be parallel or BT656\n");
244 ret = -EINVAL;
245 break;
246 }
247 }
248
249 /* Add the async subdev to the notifier. */
250 source = fwnode_graph_get_remote_endpoint(ep);
251 if (!source) {
252 dev_err(rkisp1->dev,
253 "endpoint %pfw has no remote endpoint\n",
254 ep);
255 ret = -ENODEV;
256 break;
257 }
258
259 rk_asd = v4l2_async_nf_add_fwnode(ntf, source,
260 struct rkisp1_sensor_async);
261 if (IS_ERR(rk_asd)) {
262 fwnode_handle_put(source);
263 ret = PTR_ERR(rk_asd);
264 break;
265 }
266
267 rk_asd->index = index++;
268 rk_asd->source_ep = source;
269 rk_asd->mbus_type = vep.bus_type;
270 rk_asd->port = vep.base.port;
271
272 if (vep.bus_type == V4L2_MBUS_CSI2_DPHY) {
273 rk_asd->mbus_flags = vep.bus.mipi_csi2.flags;
274 rk_asd->lanes = vep.bus.mipi_csi2.num_data_lanes;
275 } else {
276 rk_asd->mbus_flags = vep.bus.parallel.flags;
277 }
278
279 dev_dbg(rkisp1->dev, "registered ep id %d, bus type %u, %u lanes\n",
280 vep.base.id, rk_asd->mbus_type, rk_asd->lanes);
281 }
282
283 if (ret) {
284 fwnode_handle_put(ep);
285 v4l2_async_nf_cleanup(ntf);
286 return ret;
287 }
288
289 if (!index)
290 dev_dbg(rkisp1->dev, "no remote subdevice found\n");
291
292 ret = v4l2_async_nf_register(ntf);
293 if (ret) {
294 v4l2_async_nf_cleanup(ntf);
295 return ret;
296 }
297
298 return 0;
299 }
300
301 /* ----------------------------------------------------------------------------
302 * Power
303 */
304
rkisp1_runtime_suspend(struct device * dev)305 static int __maybe_unused rkisp1_runtime_suspend(struct device *dev)
306 {
307 struct rkisp1_device *rkisp1 = dev_get_drvdata(dev);
308
309 rkisp1->irqs_enabled = false;
310 /* Make sure the IRQ handler will see the above */
311 mb();
312
313 /*
314 * Wait until any running IRQ handler has returned. The IRQ handler
315 * may get called even after this (as it's a shared interrupt line)
316 * but the 'irqs_enabled' flag will make the handler return immediately.
317 */
318 for (unsigned int il = 0; il < ARRAY_SIZE(rkisp1->irqs); ++il) {
319 if (rkisp1->irqs[il] == -1)
320 continue;
321
322 /* Skip if the irq line is the same as previous */
323 if (il == 0 || rkisp1->irqs[il - 1] != rkisp1->irqs[il])
324 synchronize_irq(rkisp1->irqs[il]);
325 }
326
327 clk_bulk_disable_unprepare(rkisp1->clk_size, rkisp1->clks);
328 return pinctrl_pm_select_sleep_state(dev);
329 }
330
rkisp1_runtime_resume(struct device * dev)331 static int __maybe_unused rkisp1_runtime_resume(struct device *dev)
332 {
333 struct rkisp1_device *rkisp1 = dev_get_drvdata(dev);
334 int ret;
335
336 ret = pinctrl_pm_select_default_state(dev);
337 if (ret)
338 return ret;
339 ret = clk_bulk_prepare_enable(rkisp1->clk_size, rkisp1->clks);
340 if (ret)
341 return ret;
342
343 rkisp1->irqs_enabled = true;
344 /* Make sure the IRQ handler will see the above */
345 mb();
346
347 return 0;
348 }
349
350 static const struct dev_pm_ops rkisp1_pm_ops = {
351 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
352 pm_runtime_force_resume)
353 SET_RUNTIME_PM_OPS(rkisp1_runtime_suspend, rkisp1_runtime_resume, NULL)
354 };
355
356 /* ----------------------------------------------------------------------------
357 * Core
358 */
359
rkisp1_create_links(struct rkisp1_device * rkisp1)360 static int rkisp1_create_links(struct rkisp1_device *rkisp1)
361 {
362 unsigned int dev_count = rkisp1_path_count(rkisp1);
363 unsigned int i;
364 int ret;
365
366 if (rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
367 /* Link the CSI receiver to the ISP. */
368 ret = media_create_pad_link(&rkisp1->csi.sd.entity,
369 RKISP1_CSI_PAD_SRC,
370 &rkisp1->isp.sd.entity,
371 RKISP1_ISP_PAD_SINK_VIDEO,
372 MEDIA_LNK_FL_ENABLED);
373 if (ret)
374 return ret;
375 }
376
377 /* create ISP->RSZ->CAP links */
378 for (i = 0; i < dev_count; i++) {
379 struct media_entity *resizer =
380 &rkisp1->resizer_devs[i].sd.entity;
381 struct media_entity *capture =
382 &rkisp1->capture_devs[i].vnode.vdev.entity;
383
384 ret = media_create_pad_link(&rkisp1->isp.sd.entity,
385 RKISP1_ISP_PAD_SOURCE_VIDEO,
386 resizer, RKISP1_RSZ_PAD_SINK,
387 MEDIA_LNK_FL_ENABLED);
388 if (ret)
389 return ret;
390
391 ret = media_create_pad_link(resizer, RKISP1_RSZ_PAD_SRC,
392 capture, 0,
393 MEDIA_LNK_FL_ENABLED |
394 MEDIA_LNK_FL_IMMUTABLE);
395 if (ret)
396 return ret;
397 }
398
399 /* params links */
400 ret = media_create_pad_link(&rkisp1->params.vnode.vdev.entity, 0,
401 &rkisp1->isp.sd.entity,
402 RKISP1_ISP_PAD_SINK_PARAMS,
403 MEDIA_LNK_FL_ENABLED |
404 MEDIA_LNK_FL_IMMUTABLE);
405 if (ret)
406 return ret;
407
408 /* 3A stats links */
409 return media_create_pad_link(&rkisp1->isp.sd.entity,
410 RKISP1_ISP_PAD_SOURCE_STATS,
411 &rkisp1->stats.vnode.vdev.entity, 0,
412 MEDIA_LNK_FL_ENABLED |
413 MEDIA_LNK_FL_IMMUTABLE);
414 }
415
rkisp1_entities_unregister(struct rkisp1_device * rkisp1)416 static void rkisp1_entities_unregister(struct rkisp1_device *rkisp1)
417 {
418 if (rkisp1_has_feature(rkisp1, MIPI_CSI2))
419 rkisp1_csi_unregister(rkisp1);
420 rkisp1_params_unregister(rkisp1);
421 rkisp1_stats_unregister(rkisp1);
422 rkisp1_capture_devs_unregister(rkisp1);
423 rkisp1_resizer_devs_unregister(rkisp1);
424 rkisp1_isp_unregister(rkisp1);
425 }
426
rkisp1_entities_register(struct rkisp1_device * rkisp1)427 static int rkisp1_entities_register(struct rkisp1_device *rkisp1)
428 {
429 int ret;
430
431 ret = rkisp1_isp_register(rkisp1);
432 if (ret)
433 goto error;
434
435 ret = rkisp1_resizer_devs_register(rkisp1);
436 if (ret)
437 goto error;
438
439 ret = rkisp1_capture_devs_register(rkisp1);
440 if (ret)
441 goto error;
442
443 ret = rkisp1_stats_register(rkisp1);
444 if (ret)
445 goto error;
446
447 ret = rkisp1_params_register(rkisp1);
448 if (ret)
449 goto error;
450
451 if (rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
452 ret = rkisp1_csi_register(rkisp1);
453 if (ret)
454 goto error;
455 }
456
457 ret = rkisp1_create_links(rkisp1);
458 if (ret)
459 goto error;
460
461 return 0;
462
463 error:
464 rkisp1_entities_unregister(rkisp1);
465 return ret;
466 }
467
rkisp1_isr(int irq,void * ctx)468 static irqreturn_t rkisp1_isr(int irq, void *ctx)
469 {
470 irqreturn_t ret = IRQ_NONE;
471
472 /*
473 * Call rkisp1_capture_isr() first to handle the frame that
474 * potentially completed using the current frame_sequence number before
475 * it is potentially incremented by rkisp1_isp_isr() in the vertical
476 * sync.
477 */
478
479 if (rkisp1_capture_isr(irq, ctx) == IRQ_HANDLED)
480 ret = IRQ_HANDLED;
481
482 if (rkisp1_isp_isr(irq, ctx) == IRQ_HANDLED)
483 ret = IRQ_HANDLED;
484
485 if (rkisp1_csi_isr(irq, ctx) == IRQ_HANDLED)
486 ret = IRQ_HANDLED;
487
488 return ret;
489 }
490
491 static const char * const px30_isp_clks[] = {
492 "isp",
493 "aclk",
494 "hclk",
495 "pclk",
496 };
497
498 static const struct rkisp1_isr_data px30_isp_isrs[] = {
499 { "isp", rkisp1_isp_isr, BIT(RKISP1_IRQ_ISP) },
500 { "mi", rkisp1_capture_isr, BIT(RKISP1_IRQ_MI) },
501 { "mipi", rkisp1_csi_isr, BIT(RKISP1_IRQ_MIPI) },
502 };
503
504 static const struct rkisp1_info px30_isp_info = {
505 .clks = px30_isp_clks,
506 .clk_size = ARRAY_SIZE(px30_isp_clks),
507 .isrs = px30_isp_isrs,
508 .isr_size = ARRAY_SIZE(px30_isp_isrs),
509 .isp_ver = RKISP1_V12,
510 .features = RKISP1_FEATURE_MIPI_CSI2
511 | RKISP1_FEATURE_SELF_PATH
512 | RKISP1_FEATURE_DUAL_CROP,
513 };
514
515 static const char * const rk3399_isp_clks[] = {
516 "isp",
517 "aclk",
518 "hclk",
519 };
520
521 static const struct rkisp1_isr_data rk3399_isp_isrs[] = {
522 { NULL, rkisp1_isr, BIT(RKISP1_IRQ_ISP) | BIT(RKISP1_IRQ_MI) | BIT(RKISP1_IRQ_MIPI) },
523 };
524
525 static const struct rkisp1_info rk3399_isp_info = {
526 .clks = rk3399_isp_clks,
527 .clk_size = ARRAY_SIZE(rk3399_isp_clks),
528 .isrs = rk3399_isp_isrs,
529 .isr_size = ARRAY_SIZE(rk3399_isp_isrs),
530 .isp_ver = RKISP1_V10,
531 .features = RKISP1_FEATURE_MIPI_CSI2
532 | RKISP1_FEATURE_SELF_PATH
533 | RKISP1_FEATURE_DUAL_CROP,
534 };
535
536 static const char * const imx8mp_isp_clks[] = {
537 "isp",
538 "hclk",
539 "aclk",
540 };
541
542 static const struct rkisp1_isr_data imx8mp_isp_isrs[] = {
543 { NULL, rkisp1_isr, BIT(RKISP1_IRQ_ISP) | BIT(RKISP1_IRQ_MI) },
544 };
545
546 static const struct rkisp1_info imx8mp_isp_info = {
547 .clks = imx8mp_isp_clks,
548 .clk_size = ARRAY_SIZE(imx8mp_isp_clks),
549 .isrs = imx8mp_isp_isrs,
550 .isr_size = ARRAY_SIZE(imx8mp_isp_isrs),
551 .isp_ver = RKISP1_V_IMX8MP,
552 .features = RKISP1_FEATURE_MAIN_STRIDE
553 | RKISP1_FEATURE_DMA_34BIT,
554 };
555
556 static const struct of_device_id rkisp1_of_match[] = {
557 {
558 .compatible = "rockchip,px30-cif-isp",
559 .data = &px30_isp_info,
560 },
561 {
562 .compatible = "rockchip,rk3399-cif-isp",
563 .data = &rk3399_isp_info,
564 },
565 {
566 .compatible = "fsl,imx8mp-isp",
567 .data = &imx8mp_isp_info,
568 },
569 {},
570 };
571 MODULE_DEVICE_TABLE(of, rkisp1_of_match);
572
rkisp1_probe(struct platform_device * pdev)573 static int rkisp1_probe(struct platform_device *pdev)
574 {
575 const struct rkisp1_info *info;
576 struct device *dev = &pdev->dev;
577 struct rkisp1_device *rkisp1;
578 struct v4l2_device *v4l2_dev;
579 unsigned int i;
580 u64 dma_mask;
581 int ret, irq;
582 u32 cif_id;
583
584 rkisp1 = devm_kzalloc(dev, sizeof(*rkisp1), GFP_KERNEL);
585 if (!rkisp1)
586 return -ENOMEM;
587
588 info = of_device_get_match_data(dev);
589 rkisp1->info = info;
590
591 dev_set_drvdata(dev, rkisp1);
592 rkisp1->dev = dev;
593
594 dma_mask = rkisp1_has_feature(rkisp1, DMA_34BIT) ? DMA_BIT_MASK(34) :
595 DMA_BIT_MASK(32);
596
597 ret = dma_set_mask_and_coherent(dev, dma_mask);
598 if (ret)
599 return ret;
600
601 mutex_init(&rkisp1->stream_lock);
602
603 rkisp1->base_addr = devm_platform_ioremap_resource(pdev, 0);
604 if (IS_ERR(rkisp1->base_addr))
605 return PTR_ERR(rkisp1->base_addr);
606
607 for (unsigned int il = 0; il < ARRAY_SIZE(rkisp1->irqs); ++il)
608 rkisp1->irqs[il] = -1;
609
610 for (i = 0; i < info->isr_size; i++) {
611 irq = info->isrs[i].name
612 ? platform_get_irq_byname(pdev, info->isrs[i].name)
613 : platform_get_irq(pdev, i);
614 if (irq < 0)
615 return irq;
616
617 for (unsigned int il = 0; il < ARRAY_SIZE(rkisp1->irqs); ++il) {
618 if (info->isrs[i].line_mask & BIT(il))
619 rkisp1->irqs[il] = irq;
620 }
621
622 ret = devm_request_irq(dev, irq, info->isrs[i].isr, IRQF_SHARED,
623 dev_driver_string(dev), dev);
624 if (ret) {
625 dev_err(dev, "request irq failed: %d\n", ret);
626 return ret;
627 }
628 }
629
630 for (i = 0; i < info->clk_size; i++)
631 rkisp1->clks[i].id = info->clks[i];
632 ret = devm_clk_bulk_get(dev, info->clk_size, rkisp1->clks);
633 if (ret)
634 return ret;
635 rkisp1->clk_size = info->clk_size;
636
637 if (info->isp_ver == RKISP1_V_IMX8MP) {
638 unsigned int id;
639
640 rkisp1->gasket = syscon_regmap_lookup_by_phandle_args(dev->of_node,
641 "fsl,blk-ctrl",
642 1, &id);
643 if (IS_ERR(rkisp1->gasket)) {
644 ret = PTR_ERR(rkisp1->gasket);
645 dev_err(dev, "failed to get gasket: %d\n", ret);
646 return ret;
647 }
648
649 rkisp1->gasket_id = id;
650 }
651
652 pm_runtime_enable(&pdev->dev);
653
654 ret = pm_runtime_resume_and_get(&pdev->dev);
655 if (ret)
656 goto err_pm_runtime_disable;
657
658 cif_id = rkisp1_read(rkisp1, RKISP1_CIF_VI_ID);
659 dev_dbg(rkisp1->dev, "CIF_ID 0x%08x\n", cif_id);
660
661 pm_runtime_put(&pdev->dev);
662
663 rkisp1->media_dev.hw_revision = info->isp_ver;
664 strscpy(rkisp1->media_dev.model, RKISP1_DRIVER_NAME,
665 sizeof(rkisp1->media_dev.model));
666 rkisp1->media_dev.dev = &pdev->dev;
667 strscpy(rkisp1->media_dev.bus_info, RKISP1_BUS_INFO,
668 sizeof(rkisp1->media_dev.bus_info));
669 media_device_init(&rkisp1->media_dev);
670
671 v4l2_dev = &rkisp1->v4l2_dev;
672 v4l2_dev->mdev = &rkisp1->media_dev;
673 strscpy(v4l2_dev->name, RKISP1_DRIVER_NAME, sizeof(v4l2_dev->name));
674
675 ret = v4l2_device_register(rkisp1->dev, &rkisp1->v4l2_dev);
676 if (ret)
677 goto err_media_dev_cleanup;
678
679 ret = media_device_register(&rkisp1->media_dev);
680 if (ret) {
681 dev_err(dev, "Failed to register media device: %d\n", ret);
682 goto err_unreg_v4l2_dev;
683 }
684
685 if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2) {
686 ret = rkisp1_csi_init(rkisp1);
687 if (ret)
688 goto err_unreg_media_dev;
689 }
690
691 ret = rkisp1_entities_register(rkisp1);
692 if (ret)
693 goto err_cleanup_csi;
694
695 ret = rkisp1_subdev_notifier_register(rkisp1);
696 if (ret)
697 goto err_unreg_entities;
698
699 rkisp1_debug_init(rkisp1);
700
701 return 0;
702
703 err_unreg_entities:
704 rkisp1_entities_unregister(rkisp1);
705 err_cleanup_csi:
706 if (rkisp1_has_feature(rkisp1, MIPI_CSI2))
707 rkisp1_csi_cleanup(rkisp1);
708 err_unreg_media_dev:
709 media_device_unregister(&rkisp1->media_dev);
710 err_unreg_v4l2_dev:
711 v4l2_device_unregister(&rkisp1->v4l2_dev);
712 err_media_dev_cleanup:
713 media_device_cleanup(&rkisp1->media_dev);
714 err_pm_runtime_disable:
715 pm_runtime_disable(&pdev->dev);
716 return ret;
717 }
718
rkisp1_remove(struct platform_device * pdev)719 static void rkisp1_remove(struct platform_device *pdev)
720 {
721 struct rkisp1_device *rkisp1 = platform_get_drvdata(pdev);
722
723 v4l2_async_nf_unregister(&rkisp1->notifier);
724 v4l2_async_nf_cleanup(&rkisp1->notifier);
725
726 rkisp1_entities_unregister(rkisp1);
727 if (rkisp1_has_feature(rkisp1, MIPI_CSI2))
728 rkisp1_csi_cleanup(rkisp1);
729 rkisp1_debug_cleanup(rkisp1);
730
731 media_device_unregister(&rkisp1->media_dev);
732 v4l2_device_unregister(&rkisp1->v4l2_dev);
733
734 media_device_cleanup(&rkisp1->media_dev);
735
736 pm_runtime_disable(&pdev->dev);
737 }
738
739 static struct platform_driver rkisp1_drv = {
740 .driver = {
741 .name = RKISP1_DRIVER_NAME,
742 .of_match_table = of_match_ptr(rkisp1_of_match),
743 .pm = &rkisp1_pm_ops,
744 },
745 .probe = rkisp1_probe,
746 .remove_new = rkisp1_remove,
747 };
748
749 module_platform_driver(rkisp1_drv);
750 MODULE_DESCRIPTION("Rockchip ISP1 platform driver");
751 MODULE_LICENSE("Dual MIT/GPL");
752