drivers/media/platform/qcom/venus/vdec.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
   4  * Copyright (C) 2017 Linaro Ltd.
   5  */
   6 #include <linux/clk.h>
   7 #include <linux/module.h>
   8 #include <linux/mod_devicetable.h>
   9 #include <linux/platform_device.h>
  10 #include <linux/pm_runtime.h>
  11 #include <linux/slab.h>
  12 #include <media/v4l2-ioctl.h>
  13 #include <media/v4l2-event.h>
  14 #include <media/v4l2-ctrls.h>
  15 #include <media/v4l2-mem2mem.h>
  16 #include <media/videobuf2-dma-contig.h>
  17
  18 #include "hfi_venus_io.h"
  19 #include "hfi_parser.h"
  20 #include "core.h"
  21 #include "helpers.h"
  22 #include "vdec.h"
  23 #include "pm_helpers.h"
  24
  25 /*
  26  * Three resons to keep MPLANE formats (despite that the number of planes
  27  * currently is one):
  28  * - the MPLANE formats allow only one plane to be used
  29  * - the downstream driver use MPLANE formats too
  30  * - future firmware versions could add support for >1 planes
  31  */
  32 static const struct venus_format vdec_formats[] = {
  33         [VENUS_FMT_NV12] = {
  34                 .pixfmt = V4L2_PIX_FMT_NV12,
  35                 .num_planes = 1,
  36                 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  37         },
  38         [VENUS_FMT_QC08C] = {
  39                 .pixfmt = V4L2_PIX_FMT_QC08C,
  40                 .num_planes = 1,
  41                 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  42         },
  43         [VENUS_FMT_QC10C] = {
  44                 .pixfmt = V4L2_PIX_FMT_QC10C,
  45                 .num_planes = 1,
  46                 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  47         },
  48         [VENUS_FMT_P010] = {
  49                 .pixfmt = V4L2_PIX_FMT_P010,
  50                 .num_planes = 1,
  51                 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  52         },
  53         [VENUS_FMT_H264] = {
  54                 .pixfmt = V4L2_PIX_FMT_H264,
  55                 .num_planes = 1,
  56                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  57                 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  58         },
  59         [VENUS_FMT_VP8] = {
  60                 .pixfmt = V4L2_PIX_FMT_VP8,
  61                 .num_planes = 1,
  62                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  63                 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  64         },
  65         [VENUS_FMT_VP9] = {
  66                 .pixfmt = V4L2_PIX_FMT_VP9,
  67                 .num_planes = 1,
  68                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  69                 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  70         },
  71         [VENUS_FMT_HEVC] = {
  72                 .pixfmt = V4L2_PIX_FMT_HEVC,
  73                 .num_planes = 1,
  74                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  75                 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  76         },
  77         [VENUS_FMT_VC1_ANNEX_G] = {
  78                 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_G,
  79                 .num_planes = 1,
  80                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  81                 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  82         },
  83         [VENUS_FMT_VC1_ANNEX_L] = {
  84                 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_L,
  85                 .num_planes = 1,
  86                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  87                 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  88         },
  89         [VENUS_FMT_MPEG4] = {
  90                 .pixfmt = V4L2_PIX_FMT_MPEG4,
  91                 .num_planes = 1,
  92                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  93                 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  94         },
  95         [VENUS_FMT_MPEG2] = {
  96                 .pixfmt = V4L2_PIX_FMT_MPEG2,
  97                 .num_planes = 1,
  98                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  99                 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
 100         },
 101         [VENUS_FMT_H263] = {
 102                 .pixfmt = V4L2_PIX_FMT_H263,
 103                 .num_planes = 1,
 104                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
 105                 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
 106         },
 107         [VENUS_FMT_XVID] = {
 108                 .pixfmt = V4L2_PIX_FMT_XVID,
 109                 .num_planes = 1,
 110                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
 111                 .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
 112         },
 113
 114 };
 115
 116 static const struct venus_format *
 117 find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
 118 {
 119         const struct venus_format *fmt = vdec_formats;
 120         unsigned int size = ARRAY_SIZE(vdec_formats);
 121         unsigned int i;
 122
 123         for (i = 0; i < size; i++) {
 124                 if (fmt[i].pixfmt == pixfmt)
 125                         break;
 126         }
 127
 128         if (i == size || fmt[i].type != type)
 129                 return NULL;
 130
 131         if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 132             !venus_helper_check_codec(inst, fmt[i].pixfmt))
 133                 return NULL;
 134
 135         if (V4L2_TYPE_IS_CAPTURE(type) &&
 136             !venus_helper_check_format(inst, fmt[i].pixfmt))
 137                 return NULL;
 138
 139         if (V4L2_TYPE_IS_CAPTURE(type) && fmt[i].pixfmt == V4L2_PIX_FMT_QC10C &&
 140             !(inst->bit_depth == VIDC_BITDEPTH_10))
 141                 return NULL;
 142
 143         return &fmt[i];
 144 }
 145
 146 static const struct venus_format *
 147 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
 148 {
 149         const struct venus_format *fmt = vdec_formats;
 150         unsigned int size = ARRAY_SIZE(vdec_formats);
 151         unsigned int i, k = 0;
 152
 153         if (index > size)
 154                 return NULL;
 155
 156         for (i = 0; i < size; i++) {
 157                 bool valid;
 158
 159                 if (fmt[i].type != type)
 160                         continue;
 161
 162                 if (V4L2_TYPE_IS_OUTPUT(type)) {
 163                         valid = venus_helper_check_codec(inst, fmt[i].pixfmt);
 164                 } else if (V4L2_TYPE_IS_CAPTURE(type)) {
 165                         valid = venus_helper_check_format(inst, fmt[i].pixfmt);
 166
 167                         if (fmt[i].pixfmt == V4L2_PIX_FMT_QC10C &&
 168                             !(inst->bit_depth == VIDC_BITDEPTH_10))
 169                                 valid = false;
 170                 }
 171
 172                 if (k == index && valid)
 173                         break;
 174                 if (valid)
 175                         k++;
 176         }
 177
 178         if (i == size)
 179                 return NULL;
 180
 181         return &fmt[i];
 182 }
 183
 184 static const struct venus_format *
 185 vdec_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
 186 {
 187         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 188         struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
 189         const struct venus_format *fmt;
 190         u32 szimage;
 191
 192         memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
 193         memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
 194
 195         fmt = find_format(inst, pixmp->pixelformat, f->type);
 196         if (!fmt) {
 197                 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 198                         pixmp->pixelformat = V4L2_PIX_FMT_NV12;
 199                 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 200                         pixmp->pixelformat = V4L2_PIX_FMT_H264;
 201                 else
 202                         return NULL;
 203                 fmt = find_format(inst, pixmp->pixelformat, f->type);
 204                 if (!fmt)
 205                         return NULL;
 206         }
 207
 208         pixmp->width = clamp(pixmp->width, frame_width_min(inst),
 209                              frame_width_max(inst));
 210         pixmp->height = clamp(pixmp->height, frame_height_min(inst),
 211                               frame_height_max(inst));
 212
 213         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 214                 pixmp->height = ALIGN(pixmp->height, 32);
 215
 216         if (pixmp->field == V4L2_FIELD_ANY)
 217                 pixmp->field = V4L2_FIELD_NONE;
 218         pixmp->num_planes = fmt->num_planes;
 219         pixmp->flags = 0;
 220
 221         szimage = venus_helper_get_framesz(pixmp->pixelformat, pixmp->width,
 222                                            pixmp->height);
 223
 224         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 225                 unsigned int stride = pixmp->width;
 226
 227                 if (pixmp->pixelformat == V4L2_PIX_FMT_P010)
 228                         stride *= 2;
 229
 230                 pfmt[0].sizeimage = szimage;
 231                 pfmt[0].bytesperline = ALIGN(stride, 128);
 232         } else {
 233                 pfmt[0].sizeimage = clamp_t(u32, pfmt[0].sizeimage, 0, SZ_8M);
 234                 pfmt[0].sizeimage = max(pfmt[0].sizeimage, szimage);
 235                 pfmt[0].bytesperline = 0;
 236         }
 237
 238         return fmt;
 239 }
 240
 241 static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
 242 {
 243         struct venus_inst *inst = to_inst(file);
 244
 245         vdec_try_fmt_common(inst, f);
 246
 247         return 0;
 248 }
 249
 250 static int vdec_check_src_change(struct venus_inst *inst)
 251 {
 252         int ret;
 253
 254         if (inst->subscriptions & V4L2_EVENT_SOURCE_CHANGE &&
 255             inst->codec_state == VENUS_DEC_STATE_INIT &&
 256             !inst->reconfig)
 257                 return -EINVAL;
 258
 259         if (inst->subscriptions & V4L2_EVENT_SOURCE_CHANGE)
 260                 return 0;
 261
 262         /*
 263          * The code snippet below is a workaround for backward compatibility
 264          * with applications which doesn't support V4L2 events. It will be
 265          * dropped in future once those applications are fixed.
 266          */
 267
 268         if (inst->codec_state != VENUS_DEC_STATE_INIT)
 269                 goto done;
 270
 271         ret = wait_event_timeout(inst->reconf_wait, inst->reconfig,
 272                                  msecs_to_jiffies(100));
 273         if (!ret)
 274                 return -EINVAL;
 275
 276         if (!(inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) ||
 277             !inst->reconfig)
 278                 dev_dbg(inst->core->dev, VDBGH "wrong state\n");
 279
 280 done:
 281         return 0;
 282 }
 283
 284 static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
 285 {
 286         struct venus_inst *inst = to_inst(file);
 287         const struct venus_format *fmt = NULL;
 288         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 289         int ret;
 290
 291         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 292                 fmt = inst->fmt_cap;
 293         else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 294                 fmt = inst->fmt_out;
 295
 296         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 297                 ret = vdec_check_src_change(inst);
 298                 if (ret)
 299                         return ret;
 300         }
 301
 302         pixmp->pixelformat = fmt->pixfmt;
 303
 304         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 305                 pixmp->width = inst->width;
 306                 pixmp->height = inst->height;
 307                 pixmp->colorspace = inst->colorspace;
 308                 pixmp->ycbcr_enc = inst->ycbcr_enc;
 309                 pixmp->quantization = inst->quantization;
 310                 pixmp->xfer_func = inst->xfer_func;
 311         } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 312                 pixmp->width = inst->out_width;
 313                 pixmp->height = inst->out_height;
 314         }
 315
 316         vdec_try_fmt_common(inst, f);
 317
 318         return 0;
 319 }
 320
 321 static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
 322 {
 323         struct venus_inst *inst = to_inst(file);
 324         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 325         struct v4l2_pix_format_mplane orig_pixmp;
 326         const struct venus_format *fmt;
 327         struct v4l2_format format;
 328         u32 pixfmt_out = 0, pixfmt_cap = 0;
 329         struct vb2_queue *q;
 330
 331         q = v4l2_m2m_get_vq(inst->m2m_ctx, f->type);
 332         if (!q)
 333                 return -EINVAL;
 334
 335         if (vb2_is_busy(q))
 336                 return -EBUSY;
 337
 338         orig_pixmp = *pixmp;
 339
 340         fmt = vdec_try_fmt_common(inst, f);
 341
 342         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 343                 pixfmt_out = pixmp->pixelformat;
 344                 pixfmt_cap = inst->fmt_cap->pixfmt;
 345         } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 346                 pixfmt_cap = pixmp->pixelformat;
 347                 pixfmt_out = inst->fmt_out->pixfmt;
 348         }
 349
 350         memset(&format, 0, sizeof(format));
 351
 352         format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 353         format.fmt.pix_mp.pixelformat = pixfmt_out;
 354         format.fmt.pix_mp.width = orig_pixmp.width;
 355         format.fmt.pix_mp.height = orig_pixmp.height;
 356         vdec_try_fmt_common(inst, &format);
 357
 358         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 359                 inst->out_width = format.fmt.pix_mp.width;
 360                 inst->out_height = format.fmt.pix_mp.height;
 361                 inst->colorspace = pixmp->colorspace;
 362                 inst->ycbcr_enc = pixmp->ycbcr_enc;
 363                 inst->quantization = pixmp->quantization;
 364                 inst->xfer_func = pixmp->xfer_func;
 365                 inst->input_buf_size = pixmp->plane_fmt[0].sizeimage;
 366         }
 367
 368         memset(&format, 0, sizeof(format));
 369
 370         format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
 371         format.fmt.pix_mp.pixelformat = pixfmt_cap;
 372         format.fmt.pix_mp.width = orig_pixmp.width;
 373         format.fmt.pix_mp.height = orig_pixmp.height;
 374         vdec_try_fmt_common(inst, &format);
 375
 376         inst->width = format.fmt.pix_mp.width;
 377         inst->height = format.fmt.pix_mp.height;
 378         inst->crop.top = 0;
 379         inst->crop.left = 0;
 380         inst->crop.width = inst->width;
 381         inst->crop.height = inst->height;
 382
 383         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 384                 inst->fmt_out = fmt;
 385         else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 386                 inst->fmt_cap = fmt;
 387                 inst->output2_buf_size =
 388                         venus_helper_get_framesz(pixfmt_cap, orig_pixmp.width, orig_pixmp.height);
 389         }
 390
 391         return 0;
 392 }
 393
 394 static int
 395 vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
 396 {
 397         struct venus_inst *inst = to_inst(file);
 398
 399         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
 400             s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 401                 return -EINVAL;
 402
 403         s->r.top = 0;
 404         s->r.left = 0;
 405
 406         switch (s->target) {
 407         case V4L2_SEL_TGT_CROP_BOUNDS:
 408         case V4L2_SEL_TGT_CROP_DEFAULT:
 409         case V4L2_SEL_TGT_CROP:
 410                 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 411                         return -EINVAL;
 412                 s->r.width = inst->out_width;
 413                 s->r.height = inst->out_height;
 414                 break;
 415         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 416         case V4L2_SEL_TGT_COMPOSE_PADDED:
 417                 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 418                         return -EINVAL;
 419                 s->r.width = inst->width;
 420                 s->r.height = inst->height;
 421                 break;
 422         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 423         case V4L2_SEL_TGT_COMPOSE:
 424                 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 425                         return -EINVAL;
 426                 s->r = inst->crop;
 427                 break;
 428         default:
 429                 return -EINVAL;
 430         }
 431
 432         return 0;
 433 }
 434
 435 static int
 436 vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
 437 {
 438         strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
 439         strscpy(cap->card, "Qualcomm Venus video decoder", sizeof(cap->card));
 440         strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
 441
 442         return 0;
 443 }
 444
 445 static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
 446 {
 447         struct venus_inst *inst = to_inst(file);
 448         const struct venus_format *fmt;
 449
 450         memset(f->reserved, 0, sizeof(f->reserved));
 451
 452         fmt = find_format_by_index(inst, f->index, f->type);
 453         if (!fmt)
 454                 return -EINVAL;
 455
 456         f->pixelformat = fmt->pixfmt;
 457         f->flags = fmt->flags;
 458
 459         return 0;
 460 }
 461
 462 static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
 463 {
 464         struct venus_inst *inst = to_inst(file);
 465         struct v4l2_captureparm *cap = &a->parm.capture;
 466         struct v4l2_fract *timeperframe = &cap->timeperframe;
 467         u64 us_per_frame, fps;
 468
 469         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 470             a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 471                 return -EINVAL;
 472
 473         memset(cap->reserved, 0, sizeof(cap->reserved));
 474         if (!timeperframe->denominator)
 475                 timeperframe->denominator = inst->timeperframe.denominator;
 476         if (!timeperframe->numerator)
 477                 timeperframe->numerator = inst->timeperframe.numerator;
 478         cap->readbuffers = 0;
 479         cap->extendedmode = 0;
 480         cap->capability = V4L2_CAP_TIMEPERFRAME;
 481         us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
 482         do_div(us_per_frame, timeperframe->denominator);
 483
 484         if (!us_per_frame)
 485                 return -EINVAL;
 486
 487         fps = (u64)USEC_PER_SEC;
 488         do_div(fps, us_per_frame);
 489
 490         inst->fps = fps;
 491         inst->timeperframe = *timeperframe;
 492
 493         return 0;
 494 }
 495
 496 static int vdec_enum_framesizes(struct file *file, void *fh,
 497                                 struct v4l2_frmsizeenum *fsize)
 498 {
 499         struct venus_inst *inst = to_inst(file);
 500         const struct venus_format *fmt;
 501
 502         fmt = find_format(inst, fsize->pixel_format,
 503                           V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 504         if (!fmt) {
 505                 fmt = find_format(inst, fsize->pixel_format,
 506                                   V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
 507                 if (!fmt)
 508                         return -EINVAL;
 509         }
 510
 511         if (fsize->index)
 512                 return -EINVAL;
 513
 514         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
 515
 516         fsize->stepwise.min_width = frame_width_min(inst);
 517         fsize->stepwise.max_width = frame_width_max(inst);
 518         fsize->stepwise.step_width = frame_width_step(inst);
 519         fsize->stepwise.min_height = frame_height_min(inst);
 520         fsize->stepwise.max_height = frame_height_max(inst);
 521         fsize->stepwise.step_height = frame_height_step(inst);
 522
 523         return 0;
 524 }
 525
 526 static int vdec_subscribe_event(struct v4l2_fh *fh,
 527                                 const struct v4l2_event_subscription *sub)
 528 {
 529         struct venus_inst *inst = container_of(fh, struct venus_inst, fh);
 530         int ret;
 531
 532         switch (sub->type) {
 533         case V4L2_EVENT_EOS:
 534                 return v4l2_event_subscribe(fh, sub, 2, NULL);
 535         case V4L2_EVENT_SOURCE_CHANGE:
 536                 ret = v4l2_src_change_event_subscribe(fh, sub);
 537                 if (ret)
 538                         return ret;
 539                 inst->subscriptions |= V4L2_EVENT_SOURCE_CHANGE;
 540                 return 0;
 541         case V4L2_EVENT_CTRL:
 542                 return v4l2_ctrl_subscribe_event(fh, sub);
 543         default:
 544                 return -EINVAL;
 545         }
 546 }
 547
 548 static int
 549 vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
 550 {
 551         struct venus_inst *inst = to_inst(file);
 552         struct vb2_queue *dst_vq;
 553         struct hfi_frame_data fdata = {0};
 554         int ret;
 555
 556         ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, cmd);
 557         if (ret)
 558                 return ret;
 559
 560         mutex_lock(&inst->lock);
 561
 562         if (cmd->cmd == V4L2_DEC_CMD_STOP) {
 563                 /*
 564                  * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on
 565                  * decoder input to signal EOS.
 566                  */
 567                 if (!(inst->streamon_out && inst->streamon_cap))
 568                         goto unlock;
 569
 570                 fdata.buffer_type = HFI_BUFFER_INPUT;
 571                 fdata.flags |= HFI_BUFFERFLAG_EOS;
 572                 if (IS_V6(inst->core) && is_fw_rev_or_older(inst->core, 1, 0, 87))
 573                         fdata.device_addr = 0;
 574                 else
 575                         fdata.device_addr = 0xdeadb000;
 576
 577                 ret = hfi_session_process_buf(inst, &fdata);
 578
 579                 if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING) {
 580                         inst->codec_state = VENUS_DEC_STATE_DRAIN;
 581                         inst->drain_active = true;
 582                 }
 583         } else if (cmd->cmd == V4L2_DEC_CMD_START &&
 584                    inst->codec_state == VENUS_DEC_STATE_STOPPED) {
 585                 dst_vq = v4l2_m2m_get_vq(inst->fh.m2m_ctx,
 586                                          V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 587                 vb2_clear_last_buffer_dequeued(dst_vq);
 588
 589                 inst->codec_state = VENUS_DEC_STATE_DECODING;
 590         }
 591
 592 unlock:
 593         mutex_unlock(&inst->lock);
 594         return ret;
 595 }
 596
 597 static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
 598         .vidioc_querycap = vdec_querycap,
 599         .vidioc_enum_fmt_vid_cap = vdec_enum_fmt,
 600         .vidioc_enum_fmt_vid_out = vdec_enum_fmt,
 601         .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
 602         .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
 603         .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
 604         .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
 605         .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
 606         .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
 607         .vidioc_g_selection = vdec_g_selection,
 608         .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
 609         .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
 610         .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
 611         .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
 612         .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
 613         .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
 614         .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
 615         .vidioc_streamon = v4l2_m2m_ioctl_streamon,
 616         .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
 617         .vidioc_s_parm = vdec_s_parm,
 618         .vidioc_enum_framesizes = vdec_enum_framesizes,
 619         .vidioc_subscribe_event = vdec_subscribe_event,
 620         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 621         .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
 622         .vidioc_decoder_cmd = vdec_decoder_cmd,
 623 };
 624
 625 static int vdec_pm_get(struct venus_inst *inst)
 626 {
 627         struct venus_core *core = inst->core;
 628         struct device *dev = core->dev_dec;
 629         int ret;
 630
 631         mutex_lock(&core->pm_lock);
 632         ret = pm_runtime_resume_and_get(dev);
 633         mutex_unlock(&core->pm_lock);
 634
 635         return ret;
 636 }
 637
 638 static int vdec_pm_put(struct venus_inst *inst, bool autosuspend)
 639 {
 640         struct venus_core *core = inst->core;
 641         struct device *dev = core->dev_dec;
 642         int ret;
 643
 644         mutex_lock(&core->pm_lock);
 645
 646         if (autosuspend)
 647                 ret = pm_runtime_put_autosuspend(dev);
 648         else
 649                 ret = pm_runtime_put_sync(dev);
 650
 651         mutex_unlock(&core->pm_lock);
 652
 653         return ret < 0 ? ret : 0;
 654 }
 655
 656 static int vdec_pm_get_put(struct venus_inst *inst)
 657 {
 658         struct venus_core *core = inst->core;
 659         struct device *dev = core->dev_dec;
 660         int ret = 0;
 661
 662         mutex_lock(&core->pm_lock);
 663
 664         if (pm_runtime_suspended(dev)) {
 665                 ret = pm_runtime_resume_and_get(dev);
 666                 if (ret < 0)
 667                         goto error;
 668
 669                 ret = pm_runtime_put_autosuspend(dev);
 670         }
 671
 672 error:
 673         mutex_unlock(&core->pm_lock);
 674
 675         return ret < 0 ? ret : 0;
 676 }
 677
 678 static void vdec_pm_touch(struct venus_inst *inst)
 679 {
 680         pm_runtime_mark_last_busy(inst->core->dev_dec);
 681 }
 682
 683 static int vdec_set_properties(struct venus_inst *inst)
 684 {
 685         struct vdec_controls *ctr = &inst->controls.dec;
 686         struct hfi_enable en = { .enable = 1 };
 687         u32 ptype, decode_order, conceal;
 688         int ret;
 689
 690         if (ctr->post_loop_deb_mode) {
 691                 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
 692                 ret = hfi_session_set_property(inst, ptype, &en);
 693                 if (ret)
 694                         return ret;
 695         }
 696
 697         if (ctr->display_delay_enable && ctr->display_delay == 0) {
 698                 ptype = HFI_PROPERTY_PARAM_VDEC_OUTPUT_ORDER;
 699                 decode_order = HFI_OUTPUT_ORDER_DECODE;
 700                 ret = hfi_session_set_property(inst, ptype, &decode_order);
 701                 if (ret)
 702                         return ret;
 703         }
 704
 705         /* Enabling sufficient sequence change support for VP9 */
 706         if (is_fw_rev_or_newer(inst->core, 5, 4, 51)) {
 707                 ptype = HFI_PROPERTY_PARAM_VDEC_ENABLE_SUFFICIENT_SEQCHANGE_EVENT;
 708                 ret = hfi_session_set_property(inst, ptype, &en);
 709                 if (ret)
 710                         return ret;
 711         }
 712
 713         ptype = HFI_PROPERTY_PARAM_VDEC_CONCEAL_COLOR;
 714         conceal = ctr->conceal_color & 0xffff;
 715         conceal |= ((ctr->conceal_color >> 16) & 0xffff) << 10;
 716         conceal |= ((ctr->conceal_color >> 32) & 0xffff) << 20;
 717
 718         ret = hfi_session_set_property(inst, ptype, &conceal);
 719         if (ret)
 720                 return ret;
 721
 722         return 0;
 723 }
 724
 725 static int vdec_set_work_route(struct venus_inst *inst)
 726 {
 727         u32 ptype = HFI_PROPERTY_PARAM_WORK_ROUTE;
 728         struct hfi_video_work_route wr;
 729
 730         if (!(IS_IRIS2(inst->core) || IS_IRIS2_1(inst->core)))
 731                 return 0;
 732
 733         wr.video_work_route = inst->core->res->num_vpp_pipes;
 734
 735         return hfi_session_set_property(inst, ptype, &wr);
 736 }
 737
 738 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
 739 #define is_10bit_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_10_BIT_BASE & \
 740                                  HFI_COLOR_FORMAT_UBWC_BASE))
 741
 742
 743 static int vdec_output_conf(struct venus_inst *inst)
 744 {
 745         struct venus_core *core = inst->core;
 746         struct hfi_enable en = { .enable = 1 };
 747         struct hfi_buffer_requirements bufreq;
 748         u32 width = inst->width;
 749         u32 height = inst->height;
 750         u32 out_fmt, out2_fmt;
 751         bool ubwc = false;
 752         u32 ptype;
 753         int ret;
 754
 755         ret = venus_helper_set_work_mode(inst);
 756         if (ret)
 757                 return ret;
 758
 759         if (core->res->hfi_version == HFI_VERSION_1XX) {
 760                 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
 761                 ret = hfi_session_set_property(inst, ptype, &en);
 762                 if (ret)
 763                         return ret;
 764         }
 765
 766         /* Force searching UBWC formats for bigger then HD resolutions */
 767         if (width > 1920 && height > ALIGN(1080, 32))
 768                 ubwc = true;
 769
 770         /* For Venus v4/v6 UBWC format is mandatory */
 771         if (IS_V4(core) || IS_V6(core))
 772                 ubwc = true;
 773
 774         ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
 775                                         &out2_fmt, ubwc);
 776         if (ret)
 777                 return ret;
 778
 779         inst->output_buf_size =
 780                         venus_helper_get_framesz_raw(out_fmt, width, height);
 781         inst->output2_buf_size =
 782                         venus_helper_get_framesz_raw(out2_fmt, width, height);
 783
 784         if (is_ubwc_fmt(out_fmt)) {
 785                 inst->opb_buftype = HFI_BUFFER_OUTPUT2;
 786                 inst->opb_fmt = out2_fmt;
 787                 inst->dpb_buftype = HFI_BUFFER_OUTPUT;
 788                 inst->dpb_fmt = out_fmt;
 789         } else if (is_ubwc_fmt(out2_fmt) || is_10bit_ubwc_fmt(out_fmt)) {
 790                 inst->opb_buftype = HFI_BUFFER_OUTPUT;
 791                 inst->opb_fmt = out_fmt;
 792                 inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
 793                 inst->dpb_fmt = out2_fmt;
 794         } else {
 795                 inst->opb_buftype = HFI_BUFFER_OUTPUT;
 796                 inst->opb_fmt = out_fmt;
 797                 inst->dpb_buftype = 0;
 798                 inst->dpb_fmt = 0;
 799         }
 800
 801         ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
 802                                           inst->opb_buftype);
 803         if (ret)
 804                 return ret;
 805
 806         ret = venus_helper_set_format_constraints(inst);
 807         if (ret)
 808                 return ret;
 809
 810         if (inst->dpb_fmt) {
 811                 ret = venus_helper_set_multistream(inst, false, true);
 812                 if (ret)
 813                         return ret;
 814
 815                 ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
 816                                                   inst->dpb_buftype);
 817                 if (ret)
 818                         return ret;
 819
 820                 ret = venus_helper_set_output_resolution(inst, width, height,
 821                                                          HFI_BUFFER_OUTPUT2);
 822                 if (ret)
 823                         return ret;
 824         }
 825
 826         if (IS_V3(core) || IS_V4(core) || IS_V6(core)) {
 827                 ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
 828                 if (ret)
 829                         return ret;
 830
 831                 if (bufreq.size > inst->output_buf_size)
 832                         return -EINVAL;
 833
 834                 if (inst->dpb_fmt) {
 835                         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT2,
 836                                                       &bufreq);
 837                         if (ret)
 838                                 return ret;
 839
 840                         if (bufreq.size > inst->output2_buf_size)
 841                                 return -EINVAL;
 842                 }
 843
 844                 if (inst->output2_buf_size) {
 845                         ret = venus_helper_set_bufsize(inst,
 846                                                        inst->output2_buf_size,
 847                                                        HFI_BUFFER_OUTPUT2);
 848                         if (ret)
 849                                 return ret;
 850                 }
 851
 852                 if (inst->output_buf_size) {
 853                         ret = venus_helper_set_bufsize(inst,
 854                                                        inst->output_buf_size,
 855                                                        HFI_BUFFER_OUTPUT);
 856                         if (ret)
 857                                 return ret;
 858                 }
 859         }
 860
 861         ret = venus_helper_set_dyn_bufmode(inst);
 862         if (ret)
 863                 return ret;
 864
 865         return 0;
 866 }
 867
 868 static int vdec_session_init(struct venus_inst *inst)
 869 {
 870         int ret;
 871
 872         ret = venus_helper_session_init(inst);
 873         if (ret == -EALREADY)
 874                 return 0;
 875         else if (ret)
 876                 return ret;
 877
 878         ret = venus_helper_set_input_resolution(inst, frame_width_min(inst),
 879                                                 frame_height_min(inst));
 880         if (ret)
 881                 goto deinit;
 882
 883         return 0;
 884 deinit:
 885         hfi_session_deinit(inst);
 886         return ret;
 887 }
 888
 889 static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num,
 890                             unsigned int *out_num)
 891 {
 892         enum hfi_version ver = inst->core->res->hfi_version;
 893         struct hfi_buffer_requirements bufreq;
 894         int ret;
 895
 896         *in_num = *out_num = 0;
 897
 898         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
 899         if (ret)
 900                 return ret;
 901
 902         *in_num = hfi_bufreq_get_count_min(&bufreq, ver);
 903
 904         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
 905         if (ret)
 906                 return ret;
 907
 908         *out_num = hfi_bufreq_get_count_min(&bufreq, ver);
 909
 910         return 0;
 911 }
 912
 913 static int vdec_queue_setup(struct vb2_queue *q,
 914                             unsigned int *num_buffers, unsigned int *num_planes,
 915                             unsigned int sizes[], struct device *alloc_devs[])
 916 {
 917         struct venus_inst *inst = vb2_get_drv_priv(q);
 918         struct venus_core *core = inst->core;
 919         unsigned int in_num, out_num;
 920         int ret = 0;
 921
 922         if (*num_planes) {
 923                 unsigned int output_buf_size = venus_helper_get_opb_size(inst);
 924
 925                 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 926                     *num_planes != inst->fmt_out->num_planes)
 927                         return -EINVAL;
 928
 929                 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 930                     *num_planes != inst->fmt_cap->num_planes)
 931                         return -EINVAL;
 932
 933                 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 934                     sizes[0] < inst->input_buf_size)
 935                         return -EINVAL;
 936
 937                 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 938                     sizes[0] < output_buf_size)
 939                         return -EINVAL;
 940
 941                 return 0;
 942         }
 943
 944         if (test_bit(0, &core->sys_error)) {
 945                 if (inst->nonblock)
 946                         return -EAGAIN;
 947
 948                 ret = wait_event_interruptible(core->sys_err_done,
 949                                                !test_bit(0, &core->sys_error));
 950                 if (ret)
 951                         return ret;
 952         }
 953
 954         ret = vdec_pm_get(inst);
 955         if (ret)
 956                 return ret;
 957
 958         ret = vdec_session_init(inst);
 959         if (ret)
 960                 goto put_power;
 961
 962         ret = vdec_num_buffers(inst, &in_num, &out_num);
 963         if (ret)
 964                 goto put_power;
 965
 966         ret = vdec_pm_put(inst, false);
 967         if (ret)
 968                 return ret;
 969
 970         switch (q->type) {
 971         case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
 972                 *num_planes = inst->fmt_out->num_planes;
 973                 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
 974                                                     inst->out_width,
 975                                                     inst->out_height);
 976                 sizes[0] = max(sizes[0], inst->input_buf_size);
 977                 inst->input_buf_size = sizes[0];
 978                 *num_buffers = max(*num_buffers, in_num);
 979                 inst->num_input_bufs = *num_buffers;
 980                 inst->num_output_bufs = out_num;
 981                 break;
 982         case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
 983                 *num_planes = inst->fmt_cap->num_planes;
 984                 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
 985                                                     inst->width,
 986                                                     inst->height);
 987                 inst->output_buf_size = sizes[0];
 988                 *num_buffers = max(*num_buffers, out_num);
 989                 inst->num_output_bufs = *num_buffers;
 990
 991                 mutex_lock(&inst->lock);
 992                 if (inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP)
 993                         inst->codec_state = VENUS_DEC_STATE_STOPPED;
 994                 mutex_unlock(&inst->lock);
 995                 break;
 996         default:
 997                 ret = -EINVAL;
 998                 break;
 999         }
1000
1001         return ret;
1002
1003 put_power:
1004         vdec_pm_put(inst, false);
1005         return ret;
1006 }
1007
1008 static int vdec_verify_conf(struct venus_inst *inst)
1009 {
1010         enum hfi_version ver = inst->core->res->hfi_version;
1011         struct hfi_buffer_requirements bufreq;
1012         int ret;
1013
1014         if (!inst->num_input_bufs || !inst->num_output_bufs)
1015                 return -EINVAL;
1016
1017         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
1018         if (ret)
1019                 return ret;
1020
1021         if (inst->num_output_bufs < bufreq.count_actual ||
1022             inst->num_output_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1023                 return -EINVAL;
1024
1025         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
1026         if (ret)
1027                 return ret;
1028
1029         if (inst->num_input_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1030                 return -EINVAL;
1031
1032         return 0;
1033 }
1034
1035 static int vdec_start_capture(struct venus_inst *inst)
1036 {
1037         int ret;
1038
1039         if (!inst->streamon_out)
1040                 return 0;
1041
1042         if (inst->codec_state == VENUS_DEC_STATE_DECODING) {
1043                 if (inst->reconfig)
1044                         goto reconfigure;
1045
1046                 venus_helper_queue_dpb_bufs(inst);
1047                 venus_helper_process_initial_cap_bufs(inst);
1048                 inst->streamon_cap = 1;
1049                 return 0;
1050         }
1051
1052         if (inst->codec_state != VENUS_DEC_STATE_STOPPED)
1053                 return 0;
1054
1055 reconfigure:
1056         ret = vdec_output_conf(inst);
1057         if (ret)
1058                 return ret;
1059
1060         ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1061                                         VB2_MAX_FRAME, VB2_MAX_FRAME);
1062         if (ret)
1063                 return ret;
1064
1065         ret = venus_helper_intbufs_realloc(inst);
1066         if (ret)
1067                 goto err;
1068
1069         venus_pm_load_scale(inst);
1070
1071         inst->next_buf_last = false;
1072
1073         ret = venus_helper_alloc_dpb_bufs(inst);
1074         if (ret)
1075                 goto err;
1076
1077         ret = hfi_session_continue(inst);
1078         if (ret)
1079                 goto free_dpb_bufs;
1080
1081         ret = venus_helper_queue_dpb_bufs(inst);
1082         if (ret)
1083                 goto free_dpb_bufs;
1084
1085         ret = venus_helper_process_initial_cap_bufs(inst);
1086         if (ret)
1087                 goto free_dpb_bufs;
1088
1089         inst->codec_state = VENUS_DEC_STATE_DECODING;
1090
1091         if (inst->drain_active)
1092                 inst->codec_state = VENUS_DEC_STATE_DRAIN;
1093
1094         inst->streamon_cap = 1;
1095         inst->sequence_cap = 0;
1096         inst->reconfig = false;
1097         inst->drain_active = false;
1098
1099         return 0;
1100
1101 free_dpb_bufs:
1102         venus_helper_free_dpb_bufs(inst);
1103 err:
1104         return ret;
1105 }
1106
1107 static int vdec_start_output(struct venus_inst *inst)
1108 {
1109         int ret;
1110
1111         if (inst->codec_state == VENUS_DEC_STATE_SEEK) {
1112                 ret = venus_helper_process_initial_out_bufs(inst);
1113                 if (inst->next_buf_last)
1114                         inst->codec_state = VENUS_DEC_STATE_DRC;
1115                 else
1116                         inst->codec_state = VENUS_DEC_STATE_DECODING;
1117                 goto done;
1118         }
1119
1120         if (inst->codec_state == VENUS_DEC_STATE_INIT ||
1121             inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) {
1122                 ret = venus_helper_process_initial_out_bufs(inst);
1123                 goto done;
1124         }
1125
1126         if (inst->codec_state != VENUS_DEC_STATE_DEINIT)
1127                 return -EINVAL;
1128
1129         venus_helper_init_instance(inst);
1130         inst->sequence_out = 0;
1131         inst->reconfig = false;
1132         inst->next_buf_last = false;
1133
1134         ret = vdec_set_properties(inst);
1135         if (ret)
1136                 return ret;
1137
1138         ret = vdec_set_work_route(inst);
1139         if (ret)
1140                 return ret;
1141
1142         ret = vdec_output_conf(inst);
1143         if (ret)
1144                 return ret;
1145
1146         ret = vdec_verify_conf(inst);
1147         if (ret)
1148                 return ret;
1149
1150         ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1151                                         VB2_MAX_FRAME, VB2_MAX_FRAME);
1152         if (ret)
1153                 return ret;
1154
1155         ret = venus_helper_vb2_start_streaming(inst);
1156         if (ret)
1157                 return ret;
1158
1159         ret = venus_helper_process_initial_out_bufs(inst);
1160         if (ret)
1161                 return ret;
1162
1163         inst->codec_state = VENUS_DEC_STATE_INIT;
1164
1165 done:
1166         inst->streamon_out = 1;
1167         return ret;
1168 }
1169
1170 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
1171 {
1172         struct venus_inst *inst = vb2_get_drv_priv(q);
1173         int ret;
1174
1175         mutex_lock(&inst->lock);
1176
1177         if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1178                 ret = vdec_start_capture(inst);
1179         } else {
1180                 ret = vdec_pm_get(inst);
1181                 if (ret)
1182                         goto error;
1183
1184                 ret = venus_pm_acquire_core(inst);
1185                 if (ret)
1186                         goto put_power;
1187
1188                 ret = vdec_pm_put(inst, true);
1189                 if (ret)
1190                         goto error;
1191
1192                 ret = vdec_start_output(inst);
1193         }
1194
1195         if (ret)
1196                 goto error;
1197
1198         mutex_unlock(&inst->lock);
1199         return 0;
1200
1201 put_power:
1202         vdec_pm_put(inst, false);
1203 error:
1204         venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1205         mutex_unlock(&inst->lock);
1206         return ret;
1207 }
1208
1209 static void vdec_cancel_dst_buffers(struct venus_inst *inst)
1210 {
1211         struct vb2_v4l2_buffer *buf;
1212
1213         while ((buf = v4l2_m2m_dst_buf_remove(inst->m2m_ctx)))
1214                 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1215 }
1216
1217 static int vdec_stop_capture(struct venus_inst *inst)
1218 {
1219         int ret = 0;
1220
1221         switch (inst->codec_state) {
1222         case VENUS_DEC_STATE_DECODING:
1223                 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1224                 fallthrough;
1225         case VENUS_DEC_STATE_DRAIN:
1226                 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1227                 inst->drain_active = false;
1228                 fallthrough;
1229         case VENUS_DEC_STATE_SEEK:
1230                 vdec_cancel_dst_buffers(inst);
1231                 break;
1232         case VENUS_DEC_STATE_DRC:
1233                 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, true);
1234                 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1235                 venus_helper_free_dpb_bufs(inst);
1236                 break;
1237         default:
1238                 break;
1239         }
1240
1241         return ret;
1242 }
1243
1244 static int vdec_stop_output(struct venus_inst *inst)
1245 {
1246         int ret = 0;
1247
1248         switch (inst->codec_state) {
1249         case VENUS_DEC_STATE_DECODING:
1250         case VENUS_DEC_STATE_DRAIN:
1251         case VENUS_DEC_STATE_STOPPED:
1252         case VENUS_DEC_STATE_DRC:
1253                 ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1254                 inst->codec_state = VENUS_DEC_STATE_SEEK;
1255                 break;
1256         case VENUS_DEC_STATE_INIT:
1257         case VENUS_DEC_STATE_CAPTURE_SETUP:
1258                 ret = hfi_session_flush(inst, HFI_FLUSH_INPUT, true);
1259                 break;
1260         default:
1261                 break;
1262         }
1263
1264         return ret;
1265 }
1266
1267 static void vdec_stop_streaming(struct vb2_queue *q)
1268 {
1269         struct venus_inst *inst = vb2_get_drv_priv(q);
1270         int ret = -EINVAL;
1271
1272         vdec_pm_get_put(inst);
1273
1274         mutex_lock(&inst->lock);
1275
1276         if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1277                 ret = vdec_stop_capture(inst);
1278         else
1279                 ret = vdec_stop_output(inst);
1280
1281         venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR);
1282
1283         inst->session_error = 0;
1284
1285         if (ret)
1286                 goto unlock;
1287
1288         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1289                 inst->streamon_out = 0;
1290         else
1291                 inst->streamon_cap = 0;
1292
1293 unlock:
1294         mutex_unlock(&inst->lock);
1295 }
1296
1297 static void vdec_session_release(struct venus_inst *inst)
1298 {
1299         struct venus_core *core = inst->core;
1300         int ret, abort = 0;
1301
1302         vdec_pm_get(inst);
1303
1304         mutex_lock(&inst->lock);
1305         inst->codec_state = VENUS_DEC_STATE_DEINIT;
1306
1307         ret = hfi_session_stop(inst);
1308         abort = (ret && ret != -EINVAL) ? 1 : 0;
1309         ret = hfi_session_unload_res(inst);
1310         abort = (ret && ret != -EINVAL) ? 1 : 0;
1311         ret = venus_helper_unregister_bufs(inst);
1312         abort = (ret && ret != -EINVAL) ? 1 : 0;
1313         ret = venus_helper_intbufs_free(inst);
1314         abort = (ret && ret != -EINVAL) ? 1 : 0;
1315         ret = hfi_session_deinit(inst);
1316         abort = (ret && ret != -EINVAL) ? 1 : 0;
1317
1318         if (inst->session_error || test_bit(0, &core->sys_error))
1319                 abort = 1;
1320
1321         if (abort)
1322                 hfi_session_abort(inst);
1323
1324         venus_helper_free_dpb_bufs(inst);
1325         venus_pm_load_scale(inst);
1326         INIT_LIST_HEAD(&inst->registeredbufs);
1327         mutex_unlock(&inst->lock);
1328
1329         venus_pm_release_core(inst);
1330         vdec_pm_put(inst, false);
1331 }
1332
1333 static int vdec_buf_init(struct vb2_buffer *vb)
1334 {
1335         struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1336
1337         inst->buf_count++;
1338
1339         return venus_helper_vb2_buf_init(vb);
1340 }
1341
1342 static void vdec_buf_cleanup(struct vb2_buffer *vb)
1343 {
1344         struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1345         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1346         struct venus_buffer *buf = to_venus_buffer(vbuf);
1347
1348         mutex_lock(&inst->lock);
1349         if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1350                 if (!list_empty(&inst->registeredbufs))
1351                         list_del_init(&buf->reg_list);
1352         mutex_unlock(&inst->lock);
1353
1354         inst->buf_count--;
1355         if (!inst->buf_count)
1356                 vdec_session_release(inst);
1357 }
1358
1359 static void vdec_vb2_buf_queue(struct vb2_buffer *vb)
1360 {
1361         struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1362         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1363         static const struct v4l2_event eos = { .type = V4L2_EVENT_EOS };
1364
1365         vdec_pm_get_put(inst);
1366
1367         mutex_lock(&inst->lock);
1368
1369         if (inst->next_buf_last && V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type) &&
1370             inst->codec_state == VENUS_DEC_STATE_DRC) {
1371                 vbuf->flags |= V4L2_BUF_FLAG_LAST;
1372                 vbuf->sequence = inst->sequence_cap++;
1373                 vbuf->field = V4L2_FIELD_NONE;
1374                 vb2_set_plane_payload(vb, 0, 0);
1375                 v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1376                 v4l2_event_queue_fh(&inst->fh, &eos);
1377                 inst->next_buf_last = false;
1378                 mutex_unlock(&inst->lock);
1379                 return;
1380         }
1381
1382         venus_helper_vb2_buf_queue(vb);
1383         mutex_unlock(&inst->lock);
1384 }
1385
1386 static const struct vb2_ops vdec_vb2_ops = {
1387         .queue_setup = vdec_queue_setup,
1388         .buf_init = vdec_buf_init,
1389         .buf_cleanup = vdec_buf_cleanup,
1390         .buf_prepare = venus_helper_vb2_buf_prepare,
1391         .start_streaming = vdec_start_streaming,
1392         .stop_streaming = vdec_stop_streaming,
1393         .buf_queue = vdec_vb2_buf_queue,
1394 };
1395
1396 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
1397                           u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1398                           u32 hfi_flags, u64 timestamp_us)
1399 {
1400         enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
1401         struct vb2_v4l2_buffer *vbuf;
1402         struct vb2_buffer *vb;
1403         unsigned int type;
1404
1405         vdec_pm_touch(inst);
1406
1407         if (buf_type == HFI_BUFFER_INPUT)
1408                 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1409         else
1410                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1411
1412         vbuf = venus_helper_find_buf(inst, type, tag);
1413         if (!vbuf) {
1414                 venus_helper_change_dpb_owner(inst, vbuf, type, buf_type, tag);
1415                 return;
1416         }
1417
1418         vbuf->flags = flags;
1419         vbuf->field = V4L2_FIELD_NONE;
1420         vb = &vbuf->vb2_buf;
1421
1422         if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1423                 vb2_set_plane_payload(vb, 0, bytesused);
1424                 vb->planes[0].data_offset = data_offset;
1425                 vb->timestamp = timestamp_us * NSEC_PER_USEC;
1426                 vbuf->sequence = inst->sequence_cap++;
1427
1428                 if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
1429                         const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
1430
1431                         v4l2_event_queue_fh(&inst->fh, &ev);
1432
1433                         if (inst->codec_state == VENUS_DEC_STATE_DRAIN) {
1434                                 inst->drain_active = false;
1435                                 inst->codec_state = VENUS_DEC_STATE_STOPPED;
1436                         }
1437                 }
1438
1439                 if (!bytesused)
1440                         state = VB2_BUF_STATE_ERROR;
1441         } else {
1442                 vbuf->sequence = inst->sequence_out++;
1443         }
1444
1445         venus_helper_get_ts_metadata(inst, timestamp_us, vbuf);
1446
1447         if (hfi_flags & HFI_BUFFERFLAG_READONLY)
1448                 venus_helper_acquire_buf_ref(vbuf);
1449
1450         if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
1451                 state = VB2_BUF_STATE_ERROR;
1452
1453         if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME) {
1454                 state = VB2_BUF_STATE_ERROR;
1455                 vb2_set_plane_payload(vb, 0, 0);
1456                 vb->timestamp = 0;
1457         }
1458
1459         v4l2_m2m_buf_done(vbuf, state);
1460 }
1461
1462 static void vdec_event_change(struct venus_inst *inst,
1463                               struct hfi_event_data *ev_data, bool sufficient)
1464 {
1465         static const struct v4l2_event ev = {
1466                 .type = V4L2_EVENT_SOURCE_CHANGE,
1467                 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION };
1468         struct device *dev = inst->core->dev_dec;
1469         struct v4l2_format format = {};
1470
1471         mutex_lock(&inst->lock);
1472
1473         format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1474         format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt;
1475         format.fmt.pix_mp.width = ev_data->width;
1476         format.fmt.pix_mp.height = ev_data->height;
1477
1478         vdec_try_fmt_common(inst, &format);
1479
1480         inst->width = format.fmt.pix_mp.width;
1481         inst->height = format.fmt.pix_mp.height;
1482         /*
1483          * Some versions of the firmware do not report crop information for
1484          * all codecs. For these cases, set the crop to the coded resolution.
1485          */
1486         if (ev_data->input_crop.width > 0 && ev_data->input_crop.height > 0) {
1487                 inst->crop.left = ev_data->input_crop.left;
1488                 inst->crop.top = ev_data->input_crop.top;
1489                 inst->crop.width = ev_data->input_crop.width;
1490                 inst->crop.height = ev_data->input_crop.height;
1491         } else {
1492                 inst->crop.left = 0;
1493                 inst->crop.top = 0;
1494                 inst->crop.width = ev_data->width;
1495                 inst->crop.height = ev_data->height;
1496         }
1497
1498         inst->fw_min_cnt = ev_data->buf_count;
1499         /* overwriting this to 11 for vp9 due to fw bug */
1500         if (inst->hfi_codec == HFI_VIDEO_CODEC_VP9)
1501                 inst->fw_min_cnt = 11;
1502
1503         inst->out_width = ev_data->width;
1504         inst->out_height = ev_data->height;
1505
1506         if (inst->bit_depth != ev_data->bit_depth) {
1507                 inst->bit_depth = ev_data->bit_depth;
1508                 if (inst->bit_depth == VIDC_BITDEPTH_10)
1509                         inst->fmt_cap = &vdec_formats[VENUS_FMT_P010];
1510                 else
1511                         inst->fmt_cap = &vdec_formats[VENUS_FMT_NV12];
1512         }
1513
1514         if (inst->pic_struct != ev_data->pic_struct)
1515                 inst->pic_struct = ev_data->pic_struct;
1516
1517         dev_dbg(dev, VDBGM "event %s sufficient resources (%ux%u)\n",
1518                 sufficient ? "" : "not", ev_data->width, ev_data->height);
1519
1520         switch (inst->codec_state) {
1521         case VENUS_DEC_STATE_INIT:
1522                 inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1523                 break;
1524         case VENUS_DEC_STATE_DECODING:
1525         case VENUS_DEC_STATE_DRAIN:
1526                 inst->codec_state = VENUS_DEC_STATE_DRC;
1527                 break;
1528         default:
1529                 break;
1530         }
1531
1532         /*
1533          * The assumption is that the firmware have to return the last buffer
1534          * before this event is received in the v4l2 driver. Also the firmware
1535          * itself doesn't mark the last decoder output buffer with HFI EOS flag.
1536          */
1537
1538         if (inst->codec_state == VENUS_DEC_STATE_DRC) {
1539                 int ret;
1540
1541                 inst->next_buf_last = true;
1542
1543                 ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, false);
1544                 if (ret)
1545                         dev_dbg(dev, VDBGH "flush output error %d\n", ret);
1546         }
1547
1548         inst->next_buf_last = true;
1549         inst->reconfig = true;
1550         v4l2_event_queue_fh(&inst->fh, &ev);
1551         wake_up(&inst->reconf_wait);
1552
1553         mutex_unlock(&inst->lock);
1554 }
1555
1556 static void vdec_event_notify(struct venus_inst *inst, u32 event,
1557                               struct hfi_event_data *data)
1558 {
1559         struct venus_core *core = inst->core;
1560         struct device *dev = core->dev_dec;
1561
1562         vdec_pm_touch(inst);
1563
1564         switch (event) {
1565         case EVT_SESSION_ERROR:
1566                 inst->session_error = true;
1567                 venus_helper_vb2_queue_error(inst);
1568                 dev_err(dev, "dec: event session error %x\n", inst->error);
1569                 break;
1570         case EVT_SYS_EVENT_CHANGE:
1571                 switch (data->event_type) {
1572                 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
1573                         vdec_event_change(inst, data, true);
1574                         break;
1575                 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
1576                         vdec_event_change(inst, data, false);
1577                         break;
1578                 case HFI_EVENT_RELEASE_BUFFER_REFERENCE:
1579                         venus_helper_release_buf_ref(inst, data->tag);
1580                         break;
1581                 default:
1582                         break;
1583                 }
1584                 break;
1585         default:
1586                 break;
1587         }
1588 }
1589
1590 static void vdec_flush_done(struct venus_inst *inst)
1591 {
1592         dev_dbg(inst->core->dev_dec, VDBGH "flush done\n");
1593 }
1594
1595 static const struct hfi_inst_ops vdec_hfi_ops = {
1596         .buf_done = vdec_buf_done,
1597         .event_notify = vdec_event_notify,
1598         .flush_done = vdec_flush_done,
1599 };
1600
1601 static void vdec_inst_init(struct venus_inst *inst)
1602 {
1603         inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1604         inst->fmt_out = &vdec_formats[VENUS_FMT_H264];
1605         inst->fmt_cap = &vdec_formats[VENUS_FMT_NV12];
1606         inst->width = frame_width_min(inst);
1607         inst->height = ALIGN(frame_height_min(inst), 32);
1608         inst->crop.left = 0;
1609         inst->crop.top = 0;
1610         inst->crop.width = inst->width;
1611         inst->crop.height = inst->height;
1612         inst->fw_min_cnt = 8;
1613         inst->out_width = frame_width_min(inst);
1614         inst->out_height = frame_height_min(inst);
1615         inst->fps = 30;
1616         inst->timeperframe.numerator = 1;
1617         inst->timeperframe.denominator = 30;
1618         inst->opb_buftype = HFI_BUFFER_OUTPUT;
1619 }
1620
1621 static void vdec_m2m_device_run(void *priv)
1622 {
1623 }
1624
1625 static const struct v4l2_m2m_ops vdec_m2m_ops = {
1626         .device_run = vdec_m2m_device_run,
1627         .job_abort = venus_helper_m2m_job_abort,
1628 };
1629
1630 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1631                           struct vb2_queue *dst_vq)
1632 {
1633         struct venus_inst *inst = priv;
1634         int ret;
1635
1636         src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1637         src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1638         src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1639         src_vq->ops = &vdec_vb2_ops;
1640         src_vq->mem_ops = &vb2_dma_contig_memops;
1641         src_vq->drv_priv = inst;
1642         src_vq->buf_struct_size = sizeof(struct venus_buffer);
1643         src_vq->allow_zero_bytesused = 1;
1644         src_vq->min_buffers_needed = 0;
1645         src_vq->dev = inst->core->dev;
1646         src_vq->lock = &inst->ctx_q_lock;
1647         ret = vb2_queue_init(src_vq);
1648         if (ret)
1649                 return ret;
1650
1651         dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1652         dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1653         dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1654         dst_vq->ops = &vdec_vb2_ops;
1655         dst_vq->mem_ops = &vb2_dma_contig_memops;
1656         dst_vq->drv_priv = inst;
1657         dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1658         dst_vq->allow_zero_bytesused = 1;
1659         dst_vq->min_buffers_needed = 0;
1660         dst_vq->dev = inst->core->dev;
1661         dst_vq->lock = &inst->ctx_q_lock;
1662         return vb2_queue_init(dst_vq);
1663 }
1664
1665 static int vdec_open(struct file *file)
1666 {
1667         struct venus_core *core = video_drvdata(file);
1668         struct venus_inst *inst;
1669         int ret;
1670
1671         inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1672         if (!inst)
1673                 return -ENOMEM;
1674
1675         INIT_LIST_HEAD(&inst->dpbbufs);
1676         INIT_LIST_HEAD(&inst->registeredbufs);
1677         INIT_LIST_HEAD(&inst->internalbufs);
1678         INIT_LIST_HEAD(&inst->list);
1679         mutex_init(&inst->lock);
1680         mutex_init(&inst->ctx_q_lock);
1681
1682         inst->core = core;
1683         inst->session_type = VIDC_SESSION_TYPE_DEC;
1684         inst->num_output_bufs = 1;
1685         inst->codec_state = VENUS_DEC_STATE_DEINIT;
1686         inst->buf_count = 0;
1687         inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1688         inst->core_acquired = false;
1689         inst->bit_depth = VIDC_BITDEPTH_8;
1690         inst->pic_struct = HFI_INTERLACE_FRAME_PROGRESSIVE;
1691         init_waitqueue_head(&inst->reconf_wait);
1692         inst->nonblock = file->f_flags & O_NONBLOCK;
1693
1694         venus_helper_init_instance(inst);
1695
1696         ret = vdec_ctrl_init(inst);
1697         if (ret)
1698                 goto err_free;
1699
1700         ret = hfi_session_create(inst, &vdec_hfi_ops);
1701         if (ret)
1702                 goto err_ctrl_deinit;
1703
1704         vdec_inst_init(inst);
1705
1706         ida_init(&inst->dpb_ids);
1707
1708         /*
1709          * create m2m device for every instance, the m2m context scheduling
1710          * is made by firmware side so we do not need to care about.
1711          */
1712         inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops);
1713         if (IS_ERR(inst->m2m_dev)) {
1714                 ret = PTR_ERR(inst->m2m_dev);
1715                 goto err_session_destroy;
1716         }
1717
1718         inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1719         if (IS_ERR(inst->m2m_ctx)) {
1720                 ret = PTR_ERR(inst->m2m_ctx);
1721                 goto err_m2m_release;
1722         }
1723
1724         v4l2_fh_init(&inst->fh, core->vdev_dec);
1725
1726         inst->fh.ctrl_handler = &inst->ctrl_handler;
1727         v4l2_fh_add(&inst->fh);
1728         inst->fh.m2m_ctx = inst->m2m_ctx;
1729         file->private_data = &inst->fh;
1730
1731         return 0;
1732
1733 err_m2m_release:
1734         v4l2_m2m_release(inst->m2m_dev);
1735 err_session_destroy:
1736         hfi_session_destroy(inst);
1737 err_ctrl_deinit:
1738         vdec_ctrl_deinit(inst);
1739 err_free:
1740         kfree(inst);
1741         return ret;
1742 }
1743
1744 static int vdec_close(struct file *file)
1745 {
1746         struct venus_inst *inst = to_inst(file);
1747
1748         vdec_pm_get(inst);
1749
1750         v4l2_m2m_ctx_release(inst->m2m_ctx);
1751         v4l2_m2m_release(inst->m2m_dev);
1752         vdec_ctrl_deinit(inst);
1753         ida_destroy(&inst->dpb_ids);
1754         hfi_session_destroy(inst);
1755         mutex_destroy(&inst->lock);
1756         mutex_destroy(&inst->ctx_q_lock);
1757         v4l2_fh_del(&inst->fh);
1758         v4l2_fh_exit(&inst->fh);
1759
1760         vdec_pm_put(inst, false);
1761
1762         kfree(inst);
1763         return 0;
1764 }
1765
1766 static const struct v4l2_file_operations vdec_fops = {
1767         .owner = THIS_MODULE,
1768         .open = vdec_open,
1769         .release = vdec_close,
1770         .unlocked_ioctl = video_ioctl2,
1771         .poll = v4l2_m2m_fop_poll,
1772         .mmap = v4l2_m2m_fop_mmap,
1773 };
1774
1775 static int vdec_probe(struct platform_device *pdev)
1776 {
1777         struct device *dev = &pdev->dev;
1778         struct video_device *vdev;
1779         struct venus_core *core;
1780         int ret;
1781
1782         if (!dev->parent)
1783                 return -EPROBE_DEFER;
1784
1785         core = dev_get_drvdata(dev->parent);
1786         if (!core)
1787                 return -EPROBE_DEFER;
1788
1789         platform_set_drvdata(pdev, core);
1790
1791         if (core->pm_ops->vdec_get) {
1792                 ret = core->pm_ops->vdec_get(dev);
1793                 if (ret)
1794                         return ret;
1795         }
1796
1797         vdev = video_device_alloc();
1798         if (!vdev)
1799                 return -ENOMEM;
1800
1801         strscpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name));
1802         vdev->release = video_device_release;
1803         vdev->fops = &vdec_fops;
1804         vdev->ioctl_ops = &vdec_ioctl_ops;
1805         vdev->vfl_dir = VFL_DIR_M2M;
1806         vdev->v4l2_dev = &core->v4l2_dev;
1807         vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1808
1809         ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1810         if (ret)
1811                 goto err_vdev_release;
1812
1813         core->vdev_dec = vdev;
1814         core->dev_dec = dev;
1815
1816         video_set_drvdata(vdev, core);
1817         pm_runtime_set_autosuspend_delay(dev, 2000);
1818         pm_runtime_use_autosuspend(dev);
1819         pm_runtime_enable(dev);
1820
1821         return 0;
1822
1823 err_vdev_release:
1824         video_device_release(vdev);
1825         return ret;
1826 }
1827
1828 static void vdec_remove(struct platform_device *pdev)
1829 {
1830         struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1831
1832         video_unregister_device(core->vdev_dec);
1833         pm_runtime_disable(core->dev_dec);
1834
1835         if (core->pm_ops->vdec_put)
1836                 core->pm_ops->vdec_put(core->dev_dec);
1837 }
1838
1839 static __maybe_unused int vdec_runtime_suspend(struct device *dev)
1840 {
1841         struct venus_core *core = dev_get_drvdata(dev);
1842         const struct venus_pm_ops *pm_ops = core->pm_ops;
1843         int ret = 0;
1844
1845         if (pm_ops->vdec_power)
1846                 ret = pm_ops->vdec_power(dev, POWER_OFF);
1847
1848         return ret;
1849 }
1850
1851 static __maybe_unused int vdec_runtime_resume(struct device *dev)
1852 {
1853         struct venus_core *core = dev_get_drvdata(dev);
1854         const struct venus_pm_ops *pm_ops = core->pm_ops;
1855         int ret = 0;
1856
1857         if (pm_ops->vdec_power)
1858                 ret = pm_ops->vdec_power(dev, POWER_ON);
1859
1860         return ret;
1861 }
1862
1863 static const struct dev_pm_ops vdec_pm_ops = {
1864         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1865                                 pm_runtime_force_resume)
1866         SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL)
1867 };
1868
1869 static const struct of_device_id vdec_dt_match[] = {
1870         { .compatible = "venus-decoder" },
1871         { }
1872 };
1873 MODULE_DEVICE_TABLE(of, vdec_dt_match);
1874
1875 static struct platform_driver qcom_venus_dec_driver = {
1876         .probe = vdec_probe,
1877         .remove_new = vdec_remove,
1878         .driver = {
1879                 .name = "qcom-venus-decoder",
1880                 .of_match_table = vdec_dt_match,
1881                 .pm = &vdec_pm_ops,
1882         },
1883 };
1884 module_platform_driver(qcom_venus_dec_driver);
1885
1886 MODULE_ALIAS("platform:qcom-venus-decoder");
1887 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver");
1888 MODULE_LICENSE("GPL v2");