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