1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * vsp1_entity.c -- R-Car VSP1 Base Entity 4 * 5 * Copyright (C) 2013-2014 Renesas Electronics Corporation 6 * 7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) 8 */ 9 10 #include <linux/device.h> 11 #include <linux/gfp.h> 12 13 #include <media/media-entity.h> 14 #include <media/v4l2-ctrls.h> 15 #include <media/v4l2-subdev.h> 16 17 #include "vsp1.h" 18 #include "vsp1_dl.h" 19 #include "vsp1_entity.h" 20 #include "vsp1_pipe.h" 21 #include "vsp1_rwpf.h" 22 23 void vsp1_entity_route_setup(struct vsp1_entity *entity, 24 struct vsp1_pipeline *pipe, 25 struct vsp1_dl_body *dlb) 26 { 27 struct vsp1_entity *source; 28 u32 route; 29 30 if (entity->type == VSP1_ENTITY_HGO) { 31 u32 smppt; 32 33 /* 34 * The HGO is a special case, its routing is configured on the 35 * sink pad. 36 */ 37 source = entity->sources[0]; 38 smppt = (pipe->output->entity.index << VI6_DPR_SMPPT_TGW_SHIFT) 39 | (source->route->output << VI6_DPR_SMPPT_PT_SHIFT); 40 41 vsp1_dl_body_write(dlb, VI6_DPR_HGO_SMPPT, smppt); 42 return; 43 } else if (entity->type == VSP1_ENTITY_HGT) { 44 u32 smppt; 45 46 /* 47 * The HGT is a special case, its routing is configured on the 48 * sink pad. 49 */ 50 source = entity->sources[0]; 51 smppt = (pipe->output->entity.index << VI6_DPR_SMPPT_TGW_SHIFT) 52 | (source->route->output << VI6_DPR_SMPPT_PT_SHIFT); 53 54 vsp1_dl_body_write(dlb, VI6_DPR_HGT_SMPPT, smppt); 55 return; 56 } 57 58 source = entity; 59 if (source->route->reg == 0) 60 return; 61 62 route = source->sink->route->inputs[source->sink_pad]; 63 /* 64 * The ILV and BRS share the same data path route. The extra BRSSEL bit 65 * selects between the ILV and BRS. 66 */ 67 if (source->type == VSP1_ENTITY_BRS) 68 route |= VI6_DPR_ROUTE_BRSSEL; 69 vsp1_dl_body_write(dlb, source->route->reg, route); 70 } 71 72 void vsp1_entity_configure_stream(struct vsp1_entity *entity, 73 struct vsp1_pipeline *pipe, 74 struct vsp1_dl_list *dl, 75 struct vsp1_dl_body *dlb) 76 { 77 if (entity->ops->configure_stream) 78 entity->ops->configure_stream(entity, pipe, dl, dlb); 79 } 80 81 void vsp1_entity_configure_frame(struct vsp1_entity *entity, 82 struct vsp1_pipeline *pipe, 83 struct vsp1_dl_list *dl, 84 struct vsp1_dl_body *dlb) 85 { 86 if (entity->ops->configure_frame) 87 entity->ops->configure_frame(entity, pipe, dl, dlb); 88 } 89 90 void vsp1_entity_configure_partition(struct vsp1_entity *entity, 91 struct vsp1_pipeline *pipe, 92 struct vsp1_dl_list *dl, 93 struct vsp1_dl_body *dlb) 94 { 95 if (entity->ops->configure_partition) 96 entity->ops->configure_partition(entity, pipe, dl, dlb); 97 } 98 99 /* ----------------------------------------------------------------------------- 100 * V4L2 Subdevice Operations 101 */ 102 103 /** 104 * vsp1_entity_get_pad_config - Get the pad configuration for an entity 105 * @entity: the entity 106 * @sd_state: the TRY state 107 * @which: configuration selector (ACTIVE or TRY) 108 * 109 * When called with which set to V4L2_SUBDEV_FORMAT_ACTIVE the caller must hold 110 * the entity lock to access the returned configuration. 111 * 112 * Return the pad configuration requested by the which argument. The TRY 113 * configuration is passed explicitly to the function through the cfg argument 114 * and simply returned when requested. The ACTIVE configuration comes from the 115 * entity structure. 116 */ 117 struct v4l2_subdev_state * 118 vsp1_entity_get_pad_config(struct vsp1_entity *entity, 119 struct v4l2_subdev_state *sd_state, 120 enum v4l2_subdev_format_whence which) 121 { 122 switch (which) { 123 case V4L2_SUBDEV_FORMAT_ACTIVE: 124 return entity->config; 125 case V4L2_SUBDEV_FORMAT_TRY: 126 default: 127 return sd_state; 128 } 129 } 130 131 /** 132 * vsp1_entity_get_pad_format - Get a pad format from storage for an entity 133 * @entity: the entity 134 * @sd_state: the state storage 135 * @pad: the pad number 136 * 137 * Return the format stored in the given configuration for an entity's pad. The 138 * configuration can be an ACTIVE or TRY configuration. 139 */ 140 struct v4l2_mbus_framefmt * 141 vsp1_entity_get_pad_format(struct vsp1_entity *entity, 142 struct v4l2_subdev_state *sd_state, 143 unsigned int pad) 144 { 145 return v4l2_subdev_get_try_format(&entity->subdev, sd_state, pad); 146 } 147 148 /** 149 * vsp1_entity_get_pad_selection - Get a pad selection from storage for entity 150 * @entity: the entity 151 * @sd_state: the state storage 152 * @pad: the pad number 153 * @target: the selection target 154 * 155 * Return the selection rectangle stored in the given configuration for an 156 * entity's pad. The configuration can be an ACTIVE or TRY configuration. The 157 * selection target can be COMPOSE or CROP. 158 */ 159 struct v4l2_rect * 160 vsp1_entity_get_pad_selection(struct vsp1_entity *entity, 161 struct v4l2_subdev_state *sd_state, 162 unsigned int pad, unsigned int target) 163 { 164 switch (target) { 165 case V4L2_SEL_TGT_COMPOSE: 166 return v4l2_subdev_get_try_compose(&entity->subdev, sd_state, 167 pad); 168 case V4L2_SEL_TGT_CROP: 169 return v4l2_subdev_get_try_crop(&entity->subdev, sd_state, 170 pad); 171 default: 172 return NULL; 173 } 174 } 175 176 /* 177 * vsp1_entity_init_cfg - Initialize formats on all pads 178 * @subdev: V4L2 subdevice 179 * @cfg: V4L2 subdev pad configuration 180 * 181 * Initialize all pad formats with default values in the given pad config. This 182 * function can be used as a handler for the subdev pad::init_cfg operation. 183 */ 184 int vsp1_entity_init_cfg(struct v4l2_subdev *subdev, 185 struct v4l2_subdev_state *sd_state) 186 { 187 unsigned int pad; 188 189 for (pad = 0; pad < subdev->entity.num_pads - 1; ++pad) { 190 struct v4l2_subdev_format format = { 191 .pad = pad, 192 .which = sd_state ? V4L2_SUBDEV_FORMAT_TRY 193 : V4L2_SUBDEV_FORMAT_ACTIVE, 194 }; 195 196 v4l2_subdev_call(subdev, pad, set_fmt, sd_state, &format); 197 } 198 199 return 0; 200 } 201 202 /* 203 * vsp1_subdev_get_pad_format - Subdev pad get_fmt handler 204 * @subdev: V4L2 subdevice 205 * @cfg: V4L2 subdev pad configuration 206 * @fmt: V4L2 subdev format 207 * 208 * This function implements the subdev get_fmt pad operation. It can be used as 209 * a direct drop-in for the operation handler. 210 */ 211 int vsp1_subdev_get_pad_format(struct v4l2_subdev *subdev, 212 struct v4l2_subdev_state *sd_state, 213 struct v4l2_subdev_format *fmt) 214 { 215 struct vsp1_entity *entity = to_vsp1_entity(subdev); 216 struct v4l2_subdev_state *config; 217 218 config = vsp1_entity_get_pad_config(entity, sd_state, fmt->which); 219 if (!config) 220 return -EINVAL; 221 222 mutex_lock(&entity->lock); 223 fmt->format = *vsp1_entity_get_pad_format(entity, config, fmt->pad); 224 mutex_unlock(&entity->lock); 225 226 return 0; 227 } 228 229 /* 230 * vsp1_subdev_enum_mbus_code - Subdev pad enum_mbus_code handler 231 * @subdev: V4L2 subdevice 232 * @cfg: V4L2 subdev pad configuration 233 * @code: Media bus code enumeration 234 * @codes: Array of supported media bus codes 235 * @ncodes: Number of supported media bus codes 236 * 237 * This function implements the subdev enum_mbus_code pad operation for entities 238 * that do not support format conversion. It enumerates the given supported 239 * media bus codes on the sink pad and reports a source pad format identical to 240 * the sink pad. 241 */ 242 int vsp1_subdev_enum_mbus_code(struct v4l2_subdev *subdev, 243 struct v4l2_subdev_state *sd_state, 244 struct v4l2_subdev_mbus_code_enum *code, 245 const unsigned int *codes, unsigned int ncodes) 246 { 247 struct vsp1_entity *entity = to_vsp1_entity(subdev); 248 249 if (code->pad == 0) { 250 if (code->index >= ncodes) 251 return -EINVAL; 252 253 code->code = codes[code->index]; 254 } else { 255 struct v4l2_subdev_state *config; 256 struct v4l2_mbus_framefmt *format; 257 258 /* 259 * The entity can't perform format conversion, the sink format 260 * is always identical to the source format. 261 */ 262 if (code->index) 263 return -EINVAL; 264 265 config = vsp1_entity_get_pad_config(entity, sd_state, 266 code->which); 267 if (!config) 268 return -EINVAL; 269 270 mutex_lock(&entity->lock); 271 format = vsp1_entity_get_pad_format(entity, config, 0); 272 code->code = format->code; 273 mutex_unlock(&entity->lock); 274 } 275 276 return 0; 277 } 278 279 /* 280 * vsp1_subdev_enum_frame_size - Subdev pad enum_frame_size handler 281 * @subdev: V4L2 subdevice 282 * @cfg: V4L2 subdev pad configuration 283 * @fse: Frame size enumeration 284 * @min_width: Minimum image width 285 * @min_height: Minimum image height 286 * @max_width: Maximum image width 287 * @max_height: Maximum image height 288 * 289 * This function implements the subdev enum_frame_size pad operation for 290 * entities that do not support scaling or cropping. It reports the given 291 * minimum and maximum frame width and height on the sink pad, and a fixed 292 * source pad size identical to the sink pad. 293 */ 294 int vsp1_subdev_enum_frame_size(struct v4l2_subdev *subdev, 295 struct v4l2_subdev_state *sd_state, 296 struct v4l2_subdev_frame_size_enum *fse, 297 unsigned int min_width, unsigned int min_height, 298 unsigned int max_width, unsigned int max_height) 299 { 300 struct vsp1_entity *entity = to_vsp1_entity(subdev); 301 struct v4l2_subdev_state *config; 302 struct v4l2_mbus_framefmt *format; 303 int ret = 0; 304 305 config = vsp1_entity_get_pad_config(entity, sd_state, fse->which); 306 if (!config) 307 return -EINVAL; 308 309 format = vsp1_entity_get_pad_format(entity, config, fse->pad); 310 311 mutex_lock(&entity->lock); 312 313 if (fse->index || fse->code != format->code) { 314 ret = -EINVAL; 315 goto done; 316 } 317 318 if (fse->pad == 0) { 319 fse->min_width = min_width; 320 fse->max_width = max_width; 321 fse->min_height = min_height; 322 fse->max_height = max_height; 323 } else { 324 /* 325 * The size on the source pad are fixed and always identical to 326 * the size on the sink pad. 327 */ 328 fse->min_width = format->width; 329 fse->max_width = format->width; 330 fse->min_height = format->height; 331 fse->max_height = format->height; 332 } 333 334 done: 335 mutex_unlock(&entity->lock); 336 return ret; 337 } 338 339 /* 340 * vsp1_subdev_set_pad_format - Subdev pad set_fmt handler 341 * @subdev: V4L2 subdevice 342 * @cfg: V4L2 subdev pad configuration 343 * @fmt: V4L2 subdev format 344 * @codes: Array of supported media bus codes 345 * @ncodes: Number of supported media bus codes 346 * @min_width: Minimum image width 347 * @min_height: Minimum image height 348 * @max_width: Maximum image width 349 * @max_height: Maximum image height 350 * 351 * This function implements the subdev set_fmt pad operation for entities that 352 * do not support scaling or cropping. It defaults to the first supplied media 353 * bus code if the requested code isn't supported, clamps the size to the 354 * supplied minimum and maximum, and propagates the sink pad format to the 355 * source pad. 356 */ 357 int vsp1_subdev_set_pad_format(struct v4l2_subdev *subdev, 358 struct v4l2_subdev_state *sd_state, 359 struct v4l2_subdev_format *fmt, 360 const unsigned int *codes, unsigned int ncodes, 361 unsigned int min_width, unsigned int min_height, 362 unsigned int max_width, unsigned int max_height) 363 { 364 struct vsp1_entity *entity = to_vsp1_entity(subdev); 365 struct v4l2_subdev_state *config; 366 struct v4l2_mbus_framefmt *format; 367 struct v4l2_rect *selection; 368 unsigned int i; 369 int ret = 0; 370 371 mutex_lock(&entity->lock); 372 373 config = vsp1_entity_get_pad_config(entity, sd_state, fmt->which); 374 if (!config) { 375 ret = -EINVAL; 376 goto done; 377 } 378 379 format = vsp1_entity_get_pad_format(entity, config, fmt->pad); 380 381 if (fmt->pad == entity->source_pad) { 382 /* The output format can't be modified. */ 383 fmt->format = *format; 384 goto done; 385 } 386 387 /* 388 * Default to the first media bus code if the requested format is not 389 * supported. 390 */ 391 for (i = 0; i < ncodes; ++i) { 392 if (fmt->format.code == codes[i]) 393 break; 394 } 395 396 format->code = i < ncodes ? codes[i] : codes[0]; 397 format->width = clamp_t(unsigned int, fmt->format.width, 398 min_width, max_width); 399 format->height = clamp_t(unsigned int, fmt->format.height, 400 min_height, max_height); 401 format->field = V4L2_FIELD_NONE; 402 format->colorspace = V4L2_COLORSPACE_SRGB; 403 404 fmt->format = *format; 405 406 /* Propagate the format to the source pad. */ 407 format = vsp1_entity_get_pad_format(entity, config, entity->source_pad); 408 *format = fmt->format; 409 410 /* Reset the crop and compose rectangles. */ 411 selection = vsp1_entity_get_pad_selection(entity, config, fmt->pad, 412 V4L2_SEL_TGT_CROP); 413 selection->left = 0; 414 selection->top = 0; 415 selection->width = format->width; 416 selection->height = format->height; 417 418 selection = vsp1_entity_get_pad_selection(entity, config, fmt->pad, 419 V4L2_SEL_TGT_COMPOSE); 420 selection->left = 0; 421 selection->top = 0; 422 selection->width = format->width; 423 selection->height = format->height; 424 425 done: 426 mutex_unlock(&entity->lock); 427 return ret; 428 } 429 430 /* ----------------------------------------------------------------------------- 431 * Media Operations 432 */ 433 434 static inline struct vsp1_entity * 435 media_entity_to_vsp1_entity(struct media_entity *entity) 436 { 437 return container_of(entity, struct vsp1_entity, subdev.entity); 438 } 439 440 static int vsp1_entity_link_setup_source(const struct media_pad *source_pad, 441 const struct media_pad *sink_pad, 442 u32 flags) 443 { 444 struct vsp1_entity *source; 445 446 source = media_entity_to_vsp1_entity(source_pad->entity); 447 448 if (!source->route) 449 return 0; 450 451 if (flags & MEDIA_LNK_FL_ENABLED) { 452 struct vsp1_entity *sink 453 = media_entity_to_vsp1_entity(sink_pad->entity); 454 455 /* 456 * Fan-out is limited to one for the normal data path plus 457 * optional HGO and HGT. We ignore the HGO and HGT here. 458 */ 459 if (sink->type != VSP1_ENTITY_HGO && 460 sink->type != VSP1_ENTITY_HGT) { 461 if (source->sink) 462 return -EBUSY; 463 source->sink = sink; 464 source->sink_pad = sink_pad->index; 465 } 466 } else { 467 source->sink = NULL; 468 source->sink_pad = 0; 469 } 470 471 return 0; 472 } 473 474 static int vsp1_entity_link_setup_sink(const struct media_pad *source_pad, 475 const struct media_pad *sink_pad, 476 u32 flags) 477 { 478 struct vsp1_entity *sink; 479 struct vsp1_entity *source; 480 481 sink = media_entity_to_vsp1_entity(sink_pad->entity); 482 source = media_entity_to_vsp1_entity(source_pad->entity); 483 484 if (flags & MEDIA_LNK_FL_ENABLED) { 485 /* Fan-in is limited to one. */ 486 if (sink->sources[sink_pad->index]) 487 return -EBUSY; 488 489 sink->sources[sink_pad->index] = source; 490 } else { 491 sink->sources[sink_pad->index] = NULL; 492 } 493 494 return 0; 495 } 496 497 int vsp1_entity_link_setup(struct media_entity *entity, 498 const struct media_pad *local, 499 const struct media_pad *remote, u32 flags) 500 { 501 if (local->flags & MEDIA_PAD_FL_SOURCE) 502 return vsp1_entity_link_setup_source(local, remote, flags); 503 else 504 return vsp1_entity_link_setup_sink(remote, local, flags); 505 } 506 507 /** 508 * vsp1_entity_remote_pad - Find the pad at the remote end of a link 509 * @pad: Pad at the local end of the link 510 * 511 * Search for a remote pad connected to the given pad by iterating over all 512 * links originating or terminating at that pad until an enabled link is found. 513 * 514 * Our link setup implementation guarantees that the output fan-out will not be 515 * higher than one for the data pipelines, except for the links to the HGO and 516 * HGT that can be enabled in addition to a regular data link. When traversing 517 * outgoing links this function ignores HGO and HGT entities and should thus be 518 * used in place of the generic media_pad_remote_pad_first() function to 519 * traverse data pipelines. 520 * 521 * Return a pointer to the pad at the remote end of the first found enabled 522 * link, or NULL if no enabled link has been found. 523 */ 524 struct media_pad *vsp1_entity_remote_pad(struct media_pad *pad) 525 { 526 struct media_link *link; 527 528 list_for_each_entry(link, &pad->entity->links, list) { 529 struct vsp1_entity *entity; 530 531 if (!(link->flags & MEDIA_LNK_FL_ENABLED)) 532 continue; 533 534 /* If we're the sink the source will never be an HGO or HGT. */ 535 if (link->sink == pad) 536 return link->source; 537 538 if (link->source != pad) 539 continue; 540 541 /* If the sink isn't a subdevice it can't be an HGO or HGT. */ 542 if (!is_media_entity_v4l2_subdev(link->sink->entity)) 543 return link->sink; 544 545 entity = media_entity_to_vsp1_entity(link->sink->entity); 546 if (entity->type != VSP1_ENTITY_HGO && 547 entity->type != VSP1_ENTITY_HGT) 548 return link->sink; 549 } 550 551 return NULL; 552 553 } 554 555 /* ----------------------------------------------------------------------------- 556 * Initialization 557 */ 558 559 #define VSP1_ENTITY_ROUTE(ent) \ 560 { VSP1_ENTITY_##ent, 0, VI6_DPR_##ent##_ROUTE, \ 561 { VI6_DPR_NODE_##ent }, VI6_DPR_NODE_##ent } 562 563 #define VSP1_ENTITY_ROUTE_RPF(idx) \ 564 { VSP1_ENTITY_RPF, idx, VI6_DPR_RPF_ROUTE(idx), \ 565 { 0, }, VI6_DPR_NODE_RPF(idx) } 566 567 #define VSP1_ENTITY_ROUTE_UDS(idx) \ 568 { VSP1_ENTITY_UDS, idx, VI6_DPR_UDS_ROUTE(idx), \ 569 { VI6_DPR_NODE_UDS(idx) }, VI6_DPR_NODE_UDS(idx) } 570 571 #define VSP1_ENTITY_ROUTE_UIF(idx) \ 572 { VSP1_ENTITY_UIF, idx, VI6_DPR_UIF_ROUTE(idx), \ 573 { VI6_DPR_NODE_UIF(idx) }, VI6_DPR_NODE_UIF(idx) } 574 575 #define VSP1_ENTITY_ROUTE_WPF(idx) \ 576 { VSP1_ENTITY_WPF, idx, 0, \ 577 { VI6_DPR_NODE_WPF(idx) }, VI6_DPR_NODE_WPF(idx) } 578 579 static const struct vsp1_route vsp1_routes[] = { 580 { VSP1_ENTITY_BRS, 0, VI6_DPR_ILV_BRS_ROUTE, 581 { VI6_DPR_NODE_BRS_IN(0), VI6_DPR_NODE_BRS_IN(1) }, 0 }, 582 { VSP1_ENTITY_BRU, 0, VI6_DPR_BRU_ROUTE, 583 { VI6_DPR_NODE_BRU_IN(0), VI6_DPR_NODE_BRU_IN(1), 584 VI6_DPR_NODE_BRU_IN(2), VI6_DPR_NODE_BRU_IN(3), 585 VI6_DPR_NODE_BRU_IN(4) }, VI6_DPR_NODE_BRU_OUT }, 586 VSP1_ENTITY_ROUTE(CLU), 587 { VSP1_ENTITY_HGO, 0, 0, { 0, }, 0 }, 588 { VSP1_ENTITY_HGT, 0, 0, { 0, }, 0 }, 589 VSP1_ENTITY_ROUTE(HSI), 590 VSP1_ENTITY_ROUTE(HST), 591 { VSP1_ENTITY_LIF, 0, 0, { 0, }, 0 }, 592 { VSP1_ENTITY_LIF, 1, 0, { 0, }, 0 }, 593 VSP1_ENTITY_ROUTE(LUT), 594 VSP1_ENTITY_ROUTE_RPF(0), 595 VSP1_ENTITY_ROUTE_RPF(1), 596 VSP1_ENTITY_ROUTE_RPF(2), 597 VSP1_ENTITY_ROUTE_RPF(3), 598 VSP1_ENTITY_ROUTE_RPF(4), 599 VSP1_ENTITY_ROUTE(SRU), 600 VSP1_ENTITY_ROUTE_UDS(0), 601 VSP1_ENTITY_ROUTE_UDS(1), 602 VSP1_ENTITY_ROUTE_UDS(2), 603 VSP1_ENTITY_ROUTE_UIF(0), /* Named UIF4 in the documentation */ 604 VSP1_ENTITY_ROUTE_UIF(1), /* Named UIF5 in the documentation */ 605 VSP1_ENTITY_ROUTE_WPF(0), 606 VSP1_ENTITY_ROUTE_WPF(1), 607 VSP1_ENTITY_ROUTE_WPF(2), 608 VSP1_ENTITY_ROUTE_WPF(3), 609 }; 610 611 int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity, 612 const char *name, unsigned int num_pads, 613 const struct v4l2_subdev_ops *ops, u32 function) 614 { 615 static struct lock_class_key key; 616 struct v4l2_subdev *subdev; 617 unsigned int i; 618 int ret; 619 620 for (i = 0; i < ARRAY_SIZE(vsp1_routes); ++i) { 621 if (vsp1_routes[i].type == entity->type && 622 vsp1_routes[i].index == entity->index) { 623 entity->route = &vsp1_routes[i]; 624 break; 625 } 626 } 627 628 if (i == ARRAY_SIZE(vsp1_routes)) 629 return -EINVAL; 630 631 mutex_init(&entity->lock); 632 633 entity->vsp1 = vsp1; 634 entity->source_pad = num_pads - 1; 635 636 /* Allocate and initialize pads. */ 637 entity->pads = devm_kcalloc(vsp1->dev, 638 num_pads, sizeof(*entity->pads), 639 GFP_KERNEL); 640 if (entity->pads == NULL) 641 return -ENOMEM; 642 643 for (i = 0; i < num_pads - 1; ++i) 644 entity->pads[i].flags = MEDIA_PAD_FL_SINK; 645 646 entity->sources = devm_kcalloc(vsp1->dev, max(num_pads - 1, 1U), 647 sizeof(*entity->sources), GFP_KERNEL); 648 if (entity->sources == NULL) 649 return -ENOMEM; 650 651 /* Single-pad entities only have a sink. */ 652 entity->pads[num_pads - 1].flags = num_pads > 1 ? MEDIA_PAD_FL_SOURCE 653 : MEDIA_PAD_FL_SINK; 654 655 /* Initialize the media entity. */ 656 ret = media_entity_pads_init(&entity->subdev.entity, num_pads, 657 entity->pads); 658 if (ret < 0) 659 return ret; 660 661 /* Initialize the V4L2 subdev. */ 662 subdev = &entity->subdev; 663 v4l2_subdev_init(subdev, ops); 664 665 subdev->entity.function = function; 666 subdev->entity.ops = &vsp1->media_ops; 667 subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; 668 669 snprintf(subdev->name, sizeof(subdev->name), "%s %s", 670 dev_name(vsp1->dev), name); 671 672 vsp1_entity_init_cfg(subdev, NULL); 673 674 /* 675 * Allocate the pad configuration to store formats and selection 676 * rectangles. 677 */ 678 /* 679 * FIXME: Drop this call, drivers are not supposed to use 680 * __v4l2_subdev_state_alloc(). 681 */ 682 entity->config = __v4l2_subdev_state_alloc(&entity->subdev, 683 "vsp1:config->lock", &key); 684 if (IS_ERR(entity->config)) { 685 media_entity_cleanup(&entity->subdev.entity); 686 return PTR_ERR(entity->config); 687 } 688 689 return 0; 690 } 691 692 void vsp1_entity_destroy(struct vsp1_entity *entity) 693 { 694 if (entity->ops && entity->ops->destroy) 695 entity->ops->destroy(entity); 696 if (entity->subdev.ctrl_handler) 697 v4l2_ctrl_handler_free(entity->subdev.ctrl_handler); 698 __v4l2_subdev_state_free(entity->config); 699 media_entity_cleanup(&entity->subdev.entity); 700 } 701