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-sg.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
  24 /*
  25  * Three resons to keep MPLANE formats (despite that the number of planes
  26  * currently is one):
  27  * - the MPLANE formats allow only one plane to be used
  28  * - the downstream driver use MPLANE formats too
  29  * - future firmware versions could add support for >1 planes
  30  */
  31 static const struct venus_format vdec_formats[] = {
  32         {
  33                 .pixfmt = V4L2_PIX_FMT_NV12,
  34                 .num_planes = 1,
  35                 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  36         }, {
  37                 .pixfmt = V4L2_PIX_FMT_MPEG4,
  38                 .num_planes = 1,
  39                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  40         }, {
  41                 .pixfmt = V4L2_PIX_FMT_MPEG2,
  42                 .num_planes = 1,
  43                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  44         }, {
  45                 .pixfmt = V4L2_PIX_FMT_H263,
  46                 .num_planes = 1,
  47                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  48         }, {
  49                 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_G,
  50                 .num_planes = 1,
  51                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  52         }, {
  53                 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_L,
  54                 .num_planes = 1,
  55                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  56         }, {
  57                 .pixfmt = V4L2_PIX_FMT_H264,
  58                 .num_planes = 1,
  59                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  60         }, {
  61                 .pixfmt = V4L2_PIX_FMT_VP8,
  62                 .num_planes = 1,
  63                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  64         }, {
  65                 .pixfmt = V4L2_PIX_FMT_VP9,
  66                 .num_planes = 1,
  67                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  68         }, {
  69                 .pixfmt = V4L2_PIX_FMT_XVID,
  70                 .num_planes = 1,
  71                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  72         }, {
  73                 .pixfmt = V4L2_PIX_FMT_HEVC,
  74                 .num_planes = 1,
  75                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  76         },
  77 };
  78
  79 static const struct venus_format *
  80 find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
  81 {
  82         const struct venus_format *fmt = vdec_formats;
  83         unsigned int size = ARRAY_SIZE(vdec_formats);
  84         unsigned int i;
  85
  86         for (i = 0; i < size; i++) {
  87                 if (fmt[i].pixfmt == pixfmt)
  88                         break;
  89         }
  90
  91         if (i == size || fmt[i].type != type)
  92                 return NULL;
  93
  94         if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
  95             !venus_helper_check_codec(inst, fmt[i].pixfmt))
  96                 return NULL;
  97
  98         return &fmt[i];
  99 }
 100
 101 static const struct venus_format *
 102 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
 103 {
 104         const struct venus_format *fmt = vdec_formats;
 105         unsigned int size = ARRAY_SIZE(vdec_formats);
 106         unsigned int i, k = 0;
 107
 108         if (index > size)
 109                 return NULL;
 110
 111         for (i = 0; i < size; i++) {
 112                 bool valid;
 113
 114                 if (fmt[i].type != type)
 115                         continue;
 116                 valid = type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE ||
 117                         venus_helper_check_codec(inst, fmt[i].pixfmt);
 118                 if (k == index && valid)
 119                         break;
 120                 if (valid)
 121                         k++;
 122         }
 123
 124         if (i == size)
 125                 return NULL;
 126
 127         return &fmt[i];
 128 }
 129
 130 static const struct venus_format *
 131 vdec_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
 132 {
 133         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 134         struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
 135         const struct venus_format *fmt;
 136
 137         memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
 138         memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
 139
 140         fmt = find_format(inst, pixmp->pixelformat, f->type);
 141         if (!fmt) {
 142                 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 143                         pixmp->pixelformat = V4L2_PIX_FMT_NV12;
 144                 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 145                         pixmp->pixelformat = V4L2_PIX_FMT_H264;
 146                 else
 147                         return NULL;
 148                 fmt = find_format(inst, pixmp->pixelformat, f->type);
 149         }
 150
 151         pixmp->width = clamp(pixmp->width, frame_width_min(inst),
 152                              frame_width_max(inst));
 153         pixmp->height = clamp(pixmp->height, frame_height_min(inst),
 154                               frame_height_max(inst));
 155
 156         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 157                 pixmp->height = ALIGN(pixmp->height, 32);
 158
 159         if (pixmp->field == V4L2_FIELD_ANY)
 160                 pixmp->field = V4L2_FIELD_NONE;
 161         pixmp->num_planes = fmt->num_planes;
 162         pixmp->flags = 0;
 163
 164         pfmt[0].sizeimage = venus_helper_get_framesz(pixmp->pixelformat,
 165                                                      pixmp->width,
 166                                                      pixmp->height);
 167
 168         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 169                 pfmt[0].bytesperline = ALIGN(pixmp->width, 128);
 170         else
 171                 pfmt[0].bytesperline = 0;
 172
 173         return fmt;
 174 }
 175
 176 static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
 177 {
 178         struct venus_inst *inst = to_inst(file);
 179
 180         vdec_try_fmt_common(inst, f);
 181
 182         return 0;
 183 }
 184
 185 static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
 186 {
 187         struct venus_inst *inst = to_inst(file);
 188         const struct venus_format *fmt = NULL;
 189         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 190
 191         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 192                 fmt = inst->fmt_cap;
 193         else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 194                 fmt = inst->fmt_out;
 195
 196         if (inst->reconfig) {
 197                 struct v4l2_format format = {};
 198
 199                 inst->out_width = inst->reconfig_width;
 200                 inst->out_height = inst->reconfig_height;
 201                 inst->reconfig = false;
 202
 203                 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
 204                 format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt;
 205                 format.fmt.pix_mp.width = inst->out_width;
 206                 format.fmt.pix_mp.height = inst->out_height;
 207
 208                 vdec_try_fmt_common(inst, &format);
 209
 210                 inst->width = format.fmt.pix_mp.width;
 211                 inst->height = format.fmt.pix_mp.height;
 212         }
 213
 214         pixmp->pixelformat = fmt->pixfmt;
 215
 216         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 217                 pixmp->width = inst->width;
 218                 pixmp->height = inst->height;
 219                 pixmp->colorspace = inst->colorspace;
 220                 pixmp->ycbcr_enc = inst->ycbcr_enc;
 221                 pixmp->quantization = inst->quantization;
 222                 pixmp->xfer_func = inst->xfer_func;
 223         } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 224                 pixmp->width = inst->out_width;
 225                 pixmp->height = inst->out_height;
 226         }
 227
 228         vdec_try_fmt_common(inst, f);
 229
 230         return 0;
 231 }
 232
 233 static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
 234 {
 235         struct venus_inst *inst = to_inst(file);
 236         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 237         struct v4l2_pix_format_mplane orig_pixmp;
 238         const struct venus_format *fmt;
 239         struct v4l2_format format;
 240         u32 pixfmt_out = 0, pixfmt_cap = 0;
 241
 242         orig_pixmp = *pixmp;
 243
 244         fmt = vdec_try_fmt_common(inst, f);
 245
 246         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 247                 pixfmt_out = pixmp->pixelformat;
 248                 pixfmt_cap = inst->fmt_cap->pixfmt;
 249         } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 250                 pixfmt_cap = pixmp->pixelformat;
 251                 pixfmt_out = inst->fmt_out->pixfmt;
 252         }
 253
 254         memset(&format, 0, sizeof(format));
 255
 256         format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 257         format.fmt.pix_mp.pixelformat = pixfmt_out;
 258         format.fmt.pix_mp.width = orig_pixmp.width;
 259         format.fmt.pix_mp.height = orig_pixmp.height;
 260         vdec_try_fmt_common(inst, &format);
 261
 262         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 263                 inst->out_width = format.fmt.pix_mp.width;
 264                 inst->out_height = format.fmt.pix_mp.height;
 265                 inst->colorspace = pixmp->colorspace;
 266                 inst->ycbcr_enc = pixmp->ycbcr_enc;
 267                 inst->quantization = pixmp->quantization;
 268                 inst->xfer_func = pixmp->xfer_func;
 269         }
 270
 271         memset(&format, 0, sizeof(format));
 272
 273         format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
 274         format.fmt.pix_mp.pixelformat = pixfmt_cap;
 275         format.fmt.pix_mp.width = orig_pixmp.width;
 276         format.fmt.pix_mp.height = orig_pixmp.height;
 277         vdec_try_fmt_common(inst, &format);
 278
 279         inst->width = format.fmt.pix_mp.width;
 280         inst->height = format.fmt.pix_mp.height;
 281
 282         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 283                 inst->fmt_out = fmt;
 284         else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 285                 inst->fmt_cap = fmt;
 286
 287         return 0;
 288 }
 289
 290 static int
 291 vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
 292 {
 293         struct venus_inst *inst = to_inst(file);
 294
 295         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
 296             s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 297                 return -EINVAL;
 298
 299         switch (s->target) {
 300         case V4L2_SEL_TGT_CROP_BOUNDS:
 301         case V4L2_SEL_TGT_CROP_DEFAULT:
 302         case V4L2_SEL_TGT_CROP:
 303                 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 304                         return -EINVAL;
 305                 s->r.width = inst->out_width;
 306                 s->r.height = inst->out_height;
 307                 break;
 308         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 309         case V4L2_SEL_TGT_COMPOSE_PADDED:
 310                 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 311                         return -EINVAL;
 312                 s->r.width = inst->width;
 313                 s->r.height = inst->height;
 314                 break;
 315         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 316         case V4L2_SEL_TGT_COMPOSE:
 317                 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 318                         return -EINVAL;
 319                 s->r.width = inst->out_width;
 320                 s->r.height = inst->out_height;
 321                 break;
 322         default:
 323                 return -EINVAL;
 324         }
 325
 326         s->r.top = 0;
 327         s->r.left = 0;
 328
 329         return 0;
 330 }
 331
 332 static int
 333 vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
 334 {
 335         strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
 336         strscpy(cap->card, "Qualcomm Venus video decoder", sizeof(cap->card));
 337         strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
 338
 339         return 0;
 340 }
 341
 342 static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
 343 {
 344         struct venus_inst *inst = to_inst(file);
 345         const struct venus_format *fmt;
 346
 347         memset(f->reserved, 0, sizeof(f->reserved));
 348
 349         fmt = find_format_by_index(inst, f->index, f->type);
 350         if (!fmt)
 351                 return -EINVAL;
 352
 353         f->pixelformat = fmt->pixfmt;
 354
 355         return 0;
 356 }
 357
 358 static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
 359 {
 360         struct venus_inst *inst = to_inst(file);
 361         struct v4l2_captureparm *cap = &a->parm.capture;
 362         struct v4l2_fract *timeperframe = &cap->timeperframe;
 363         u64 us_per_frame, fps;
 364
 365         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 366             a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 367                 return -EINVAL;
 368
 369         memset(cap->reserved, 0, sizeof(cap->reserved));
 370         if (!timeperframe->denominator)
 371                 timeperframe->denominator = inst->timeperframe.denominator;
 372         if (!timeperframe->numerator)
 373                 timeperframe->numerator = inst->timeperframe.numerator;
 374         cap->readbuffers = 0;
 375         cap->extendedmode = 0;
 376         cap->capability = V4L2_CAP_TIMEPERFRAME;
 377         us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
 378         do_div(us_per_frame, timeperframe->denominator);
 379
 380         if (!us_per_frame)
 381                 return -EINVAL;
 382
 383         fps = (u64)USEC_PER_SEC;
 384         do_div(fps, us_per_frame);
 385
 386         inst->fps = fps;
 387         inst->timeperframe = *timeperframe;
 388
 389         return 0;
 390 }
 391
 392 static int vdec_enum_framesizes(struct file *file, void *fh,
 393                                 struct v4l2_frmsizeenum *fsize)
 394 {
 395         struct venus_inst *inst = to_inst(file);
 396         const struct venus_format *fmt;
 397
 398         fmt = find_format(inst, fsize->pixel_format,
 399                           V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 400         if (!fmt) {
 401                 fmt = find_format(inst, fsize->pixel_format,
 402                                   V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
 403                 if (!fmt)
 404                         return -EINVAL;
 405         }
 406
 407         if (fsize->index)
 408                 return -EINVAL;
 409
 410         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
 411
 412         fsize->stepwise.min_width = frame_width_min(inst);
 413         fsize->stepwise.max_width = frame_width_max(inst);
 414         fsize->stepwise.step_width = frame_width_step(inst);
 415         fsize->stepwise.min_height = frame_height_min(inst);
 416         fsize->stepwise.max_height = frame_height_max(inst);
 417         fsize->stepwise.step_height = frame_height_step(inst);
 418
 419         return 0;
 420 }
 421
 422 static int vdec_subscribe_event(struct v4l2_fh *fh,
 423                                 const struct v4l2_event_subscription *sub)
 424 {
 425         switch (sub->type) {
 426         case V4L2_EVENT_EOS:
 427                 return v4l2_event_subscribe(fh, sub, 2, NULL);
 428         case V4L2_EVENT_SOURCE_CHANGE:
 429                 return v4l2_src_change_event_subscribe(fh, sub);
 430         case V4L2_EVENT_CTRL:
 431                 return v4l2_ctrl_subscribe_event(fh, sub);
 432         default:
 433                 return -EINVAL;
 434         }
 435 }
 436
 437 static int
 438 vdec_try_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
 439 {
 440         switch (cmd->cmd) {
 441         case V4L2_DEC_CMD_STOP:
 442                 if (cmd->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
 443                         return -EINVAL;
 444                 break;
 445         default:
 446                 return -EINVAL;
 447         }
 448
 449         return 0;
 450 }
 451
 452 static int
 453 vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
 454 {
 455         struct venus_inst *inst = to_inst(file);
 456         struct hfi_frame_data fdata = {0};
 457         int ret;
 458
 459         ret = vdec_try_decoder_cmd(file, fh, cmd);
 460         if (ret)
 461                 return ret;
 462
 463         mutex_lock(&inst->lock);
 464
 465         /*
 466          * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on decoder
 467          * input to signal EOS.
 468          */
 469         if (!(inst->streamon_out & inst->streamon_cap))
 470                 goto unlock;
 471
 472         fdata.buffer_type = HFI_BUFFER_INPUT;
 473         fdata.flags |= HFI_BUFFERFLAG_EOS;
 474         fdata.device_addr = 0xdeadbeef;
 475
 476         ret = hfi_session_process_buf(inst, &fdata);
 477
 478 unlock:
 479         mutex_unlock(&inst->lock);
 480         return ret;
 481 }
 482
 483 static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
 484         .vidioc_querycap = vdec_querycap,
 485         .vidioc_enum_fmt_vid_cap = vdec_enum_fmt,
 486         .vidioc_enum_fmt_vid_out = vdec_enum_fmt,
 487         .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
 488         .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
 489         .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
 490         .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
 491         .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
 492         .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
 493         .vidioc_g_selection = vdec_g_selection,
 494         .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
 495         .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
 496         .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
 497         .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
 498         .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
 499         .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
 500         .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
 501         .vidioc_streamon = v4l2_m2m_ioctl_streamon,
 502         .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
 503         .vidioc_s_parm = vdec_s_parm,
 504         .vidioc_enum_framesizes = vdec_enum_framesizes,
 505         .vidioc_subscribe_event = vdec_subscribe_event,
 506         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 507         .vidioc_try_decoder_cmd = vdec_try_decoder_cmd,
 508         .vidioc_decoder_cmd = vdec_decoder_cmd,
 509 };
 510
 511 static int vdec_set_properties(struct venus_inst *inst)
 512 {
 513         struct vdec_controls *ctr = &inst->controls.dec;
 514         struct hfi_enable en = { .enable = 1 };
 515         u32 ptype;
 516         int ret;
 517
 518         if (ctr->post_loop_deb_mode) {
 519                 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
 520                 ret = hfi_session_set_property(inst, ptype, &en);
 521                 if (ret)
 522                         return ret;
 523         }
 524
 525         return 0;
 526 }
 527
 528 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
 529
 530 static int vdec_output_conf(struct venus_inst *inst)
 531 {
 532         struct venus_core *core = inst->core;
 533         struct hfi_enable en = { .enable = 1 };
 534         u32 width = inst->out_width;
 535         u32 height = inst->out_height;
 536         u32 out_fmt, out2_fmt;
 537         bool ubwc = false;
 538         u32 ptype;
 539         int ret;
 540
 541         ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
 542         if (ret)
 543                 return ret;
 544
 545         ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_1);
 546         if (ret)
 547                 return ret;
 548
 549         if (core->res->hfi_version == HFI_VERSION_1XX) {
 550                 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
 551                 ret = hfi_session_set_property(inst, ptype, &en);
 552                 if (ret)
 553                         return ret;
 554         }
 555
 556         /* Force searching UBWC formats for bigger then HD resolutions */
 557         if (width > 1920 && height > ALIGN(1080, 32))
 558                 ubwc = true;
 559
 560         /* For Venus v4 UBWC format is mandatory */
 561         if (IS_V4(core))
 562                 ubwc = true;
 563
 564         ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
 565                                         &out2_fmt, ubwc);
 566         if (ret)
 567                 return ret;
 568
 569         inst->output_buf_size =
 570                         venus_helper_get_framesz_raw(out_fmt, width, height);
 571         inst->output2_buf_size =
 572                         venus_helper_get_framesz_raw(out2_fmt, width, height);
 573
 574         if (is_ubwc_fmt(out_fmt)) {
 575                 inst->opb_buftype = HFI_BUFFER_OUTPUT2;
 576                 inst->opb_fmt = out2_fmt;
 577                 inst->dpb_buftype = HFI_BUFFER_OUTPUT;
 578                 inst->dpb_fmt = out_fmt;
 579         } else if (is_ubwc_fmt(out2_fmt)) {
 580                 inst->opb_buftype = HFI_BUFFER_OUTPUT;
 581                 inst->opb_fmt = out_fmt;
 582                 inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
 583                 inst->dpb_fmt = out2_fmt;
 584         } else {
 585                 inst->opb_buftype = HFI_BUFFER_OUTPUT;
 586                 inst->opb_fmt = out_fmt;
 587                 inst->dpb_buftype = 0;
 588                 inst->dpb_fmt = 0;
 589         }
 590
 591         ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
 592                                           inst->opb_buftype);
 593         if (ret)
 594                 return ret;
 595
 596         if (inst->dpb_fmt) {
 597                 ret = venus_helper_set_multistream(inst, false, true);
 598                 if (ret)
 599                         return ret;
 600
 601                 ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
 602                                                   inst->dpb_buftype);
 603                 if (ret)
 604                         return ret;
 605
 606                 ret = venus_helper_set_output_resolution(inst, width, height,
 607                                                          HFI_BUFFER_OUTPUT2);
 608                 if (ret)
 609                         return ret;
 610         }
 611
 612         if (IS_V3(core) || IS_V4(core)) {
 613                 if (inst->output2_buf_size) {
 614                         ret = venus_helper_set_bufsize(inst,
 615                                                        inst->output2_buf_size,
 616                                                        HFI_BUFFER_OUTPUT2);
 617                         if (ret)
 618                                 return ret;
 619                 }
 620
 621                 if (inst->output_buf_size) {
 622                         ret = venus_helper_set_bufsize(inst,
 623                                                        inst->output_buf_size,
 624                                                        HFI_BUFFER_OUTPUT);
 625                         if (ret)
 626                                 return ret;
 627                 }
 628         }
 629
 630         ret = venus_helper_set_dyn_bufmode(inst);
 631         if (ret)
 632                 return ret;
 633
 634         return 0;
 635 }
 636
 637 static int vdec_init_session(struct venus_inst *inst)
 638 {
 639         int ret;
 640
 641         ret = hfi_session_init(inst, inst->fmt_out->pixfmt);
 642         if (ret)
 643                 return ret;
 644
 645         ret = venus_helper_set_input_resolution(inst, inst->out_width,
 646                                                 inst->out_height);
 647         if (ret)
 648                 goto deinit;
 649
 650         ret = venus_helper_set_color_format(inst, inst->fmt_cap->pixfmt);
 651         if (ret)
 652                 goto deinit;
 653
 654         return 0;
 655 deinit:
 656         hfi_session_deinit(inst);
 657         return ret;
 658 }
 659
 660 static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num,
 661                             unsigned int *out_num)
 662 {
 663         enum hfi_version ver = inst->core->res->hfi_version;
 664         struct hfi_buffer_requirements bufreq;
 665         int ret;
 666
 667         *in_num = *out_num = 0;
 668
 669         ret = vdec_init_session(inst);
 670         if (ret)
 671                 return ret;
 672
 673         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
 674         if (ret)
 675                 goto deinit;
 676
 677         *in_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
 678
 679         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
 680         if (ret)
 681                 goto deinit;
 682
 683         *out_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
 684
 685 deinit:
 686         hfi_session_deinit(inst);
 687
 688         return ret;
 689 }
 690
 691 static int vdec_queue_setup(struct vb2_queue *q,
 692                             unsigned int *num_buffers, unsigned int *num_planes,
 693                             unsigned int sizes[], struct device *alloc_devs[])
 694 {
 695         struct venus_inst *inst = vb2_get_drv_priv(q);
 696         unsigned int in_num, out_num;
 697         int ret = 0;
 698
 699         if (*num_planes) {
 700                 unsigned int output_buf_size = venus_helper_get_opb_size(inst);
 701
 702                 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 703                     *num_planes != inst->fmt_out->num_planes)
 704                         return -EINVAL;
 705
 706                 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 707                     *num_planes != inst->fmt_cap->num_planes)
 708                         return -EINVAL;
 709
 710                 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 711                     sizes[0] < inst->input_buf_size)
 712                         return -EINVAL;
 713
 714                 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 715                     sizes[0] < output_buf_size)
 716                         return -EINVAL;
 717
 718                 return 0;
 719         }
 720
 721         ret = vdec_num_buffers(inst, &in_num, &out_num);
 722         if (ret)
 723                 return ret;
 724
 725         switch (q->type) {
 726         case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
 727                 *num_planes = inst->fmt_out->num_planes;
 728                 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
 729                                                     inst->out_width,
 730                                                     inst->out_height);
 731                 inst->input_buf_size = sizes[0];
 732                 *num_buffers = max(*num_buffers, in_num);
 733                 inst->num_input_bufs = *num_buffers;
 734                 inst->num_output_bufs = out_num;
 735                 break;
 736         case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
 737                 *num_planes = inst->fmt_cap->num_planes;
 738                 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
 739                                                     inst->width,
 740                                                     inst->height);
 741                 inst->output_buf_size = sizes[0];
 742                 *num_buffers = max(*num_buffers, out_num);
 743                 inst->num_output_bufs = *num_buffers;
 744                 break;
 745         default:
 746                 ret = -EINVAL;
 747                 break;
 748         }
 749
 750         return ret;
 751 }
 752
 753 static int vdec_verify_conf(struct venus_inst *inst)
 754 {
 755         enum hfi_version ver = inst->core->res->hfi_version;
 756         struct hfi_buffer_requirements bufreq;
 757         int ret;
 758
 759         if (!inst->num_input_bufs || !inst->num_output_bufs)
 760                 return -EINVAL;
 761
 762         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
 763         if (ret)
 764                 return ret;
 765
 766         if (inst->num_output_bufs < bufreq.count_actual ||
 767             inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
 768                 return -EINVAL;
 769
 770         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
 771         if (ret)
 772                 return ret;
 773
 774         if (inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
 775                 return -EINVAL;
 776
 777         return 0;
 778 }
 779
 780 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
 781 {
 782         struct venus_inst *inst = vb2_get_drv_priv(q);
 783         int ret;
 784
 785         mutex_lock(&inst->lock);
 786
 787         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 788                 inst->streamon_out = 1;
 789         else
 790                 inst->streamon_cap = 1;
 791
 792         if (!(inst->streamon_out & inst->streamon_cap)) {
 793                 mutex_unlock(&inst->lock);
 794                 return 0;
 795         }
 796
 797         venus_helper_init_instance(inst);
 798
 799         inst->reconfig = false;
 800         inst->sequence_cap = 0;
 801         inst->sequence_out = 0;
 802
 803         ret = vdec_init_session(inst);
 804         if (ret)
 805                 goto bufs_done;
 806
 807         ret = vdec_set_properties(inst);
 808         if (ret)
 809                 goto deinit_sess;
 810
 811         ret = vdec_output_conf(inst);
 812         if (ret)
 813                 goto deinit_sess;
 814
 815         ret = vdec_verify_conf(inst);
 816         if (ret)
 817                 goto deinit_sess;
 818
 819         ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
 820                                         VB2_MAX_FRAME, VB2_MAX_FRAME);
 821         if (ret)
 822                 goto deinit_sess;
 823
 824         ret = venus_helper_alloc_dpb_bufs(inst);
 825         if (ret)
 826                 goto deinit_sess;
 827
 828         ret = venus_helper_vb2_start_streaming(inst);
 829         if (ret)
 830                 goto deinit_sess;
 831
 832         mutex_unlock(&inst->lock);
 833
 834         return 0;
 835
 836 deinit_sess:
 837         hfi_session_deinit(inst);
 838 bufs_done:
 839         venus_helper_buffers_done(inst, VB2_BUF_STATE_QUEUED);
 840         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 841                 inst->streamon_out = 0;
 842         else
 843                 inst->streamon_cap = 0;
 844         mutex_unlock(&inst->lock);
 845         return ret;
 846 }
 847
 848 static const struct vb2_ops vdec_vb2_ops = {
 849         .queue_setup = vdec_queue_setup,
 850         .buf_init = venus_helper_vb2_buf_init,
 851         .buf_prepare = venus_helper_vb2_buf_prepare,
 852         .start_streaming = vdec_start_streaming,
 853         .stop_streaming = venus_helper_vb2_stop_streaming,
 854         .buf_queue = venus_helper_vb2_buf_queue,
 855 };
 856
 857 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
 858                           u32 tag, u32 bytesused, u32 data_offset, u32 flags,
 859                           u32 hfi_flags, u64 timestamp_us)
 860 {
 861         enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
 862         struct vb2_v4l2_buffer *vbuf;
 863         struct vb2_buffer *vb;
 864         unsigned int type;
 865
 866         if (buf_type == HFI_BUFFER_INPUT)
 867                 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 868         else
 869                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
 870
 871         vbuf = venus_helper_find_buf(inst, type, tag);
 872         if (!vbuf)
 873                 return;
 874
 875         vbuf->flags = flags;
 876         vbuf->field = V4L2_FIELD_NONE;
 877
 878         if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 879                 vb = &vbuf->vb2_buf;
 880                 vb2_set_plane_payload(vb, 0, bytesused);
 881                 vb->planes[0].data_offset = data_offset;
 882                 vb->timestamp = timestamp_us * NSEC_PER_USEC;
 883                 vbuf->sequence = inst->sequence_cap++;
 884
 885                 if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
 886                         const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
 887
 888                         v4l2_event_queue_fh(&inst->fh, &ev);
 889                 }
 890         } else {
 891                 vbuf->sequence = inst->sequence_out++;
 892         }
 893
 894         if (hfi_flags & HFI_BUFFERFLAG_READONLY)
 895                 venus_helper_acquire_buf_ref(vbuf);
 896
 897         if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
 898                 state = VB2_BUF_STATE_ERROR;
 899
 900         v4l2_m2m_buf_done(vbuf, state);
 901 }
 902
 903 static void vdec_event_notify(struct venus_inst *inst, u32 event,
 904                               struct hfi_event_data *data)
 905 {
 906         struct venus_core *core = inst->core;
 907         struct device *dev = core->dev_dec;
 908         static const struct v4l2_event ev = {
 909                 .type = V4L2_EVENT_SOURCE_CHANGE,
 910                 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION };
 911
 912         switch (event) {
 913         case EVT_SESSION_ERROR:
 914                 inst->session_error = true;
 915                 dev_err(dev, "dec: event session error %x\n", inst->error);
 916                 break;
 917         case EVT_SYS_EVENT_CHANGE:
 918                 switch (data->event_type) {
 919                 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
 920                         hfi_session_continue(inst);
 921                         dev_dbg(dev, "event sufficient resources\n");
 922                         break;
 923                 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
 924                         inst->reconfig_height = data->height;
 925                         inst->reconfig_width = data->width;
 926                         inst->reconfig = true;
 927
 928                         v4l2_event_queue_fh(&inst->fh, &ev);
 929
 930                         dev_dbg(dev, "event not sufficient resources (%ux%u)\n",
 931                                 data->width, data->height);
 932                         break;
 933                 case HFI_EVENT_RELEASE_BUFFER_REFERENCE:
 934                         venus_helper_release_buf_ref(inst, data->tag);
 935                         break;
 936                 default:
 937                         break;
 938                 }
 939                 break;
 940         default:
 941                 break;
 942         }
 943 }
 944
 945 static const struct hfi_inst_ops vdec_hfi_ops = {
 946         .buf_done = vdec_buf_done,
 947         .event_notify = vdec_event_notify,
 948 };
 949
 950 static void vdec_inst_init(struct venus_inst *inst)
 951 {
 952         inst->fmt_out = &vdec_formats[6];
 953         inst->fmt_cap = &vdec_formats[0];
 954         inst->width = 1280;
 955         inst->height = ALIGN(720, 32);
 956         inst->out_width = 1280;
 957         inst->out_height = 720;
 958         inst->fps = 30;
 959         inst->timeperframe.numerator = 1;
 960         inst->timeperframe.denominator = 30;
 961         inst->hfi_codec = HFI_VIDEO_CODEC_H264;
 962 }
 963
 964 static const struct v4l2_m2m_ops vdec_m2m_ops = {
 965         .device_run = venus_helper_m2m_device_run,
 966         .job_abort = venus_helper_m2m_job_abort,
 967 };
 968
 969 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
 970                           struct vb2_queue *dst_vq)
 971 {
 972         struct venus_inst *inst = priv;
 973         int ret;
 974
 975         src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 976         src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
 977         src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
 978         src_vq->ops = &vdec_vb2_ops;
 979         src_vq->mem_ops = &vb2_dma_sg_memops;
 980         src_vq->drv_priv = inst;
 981         src_vq->buf_struct_size = sizeof(struct venus_buffer);
 982         src_vq->allow_zero_bytesused = 1;
 983         src_vq->min_buffers_needed = 1;
 984         src_vq->dev = inst->core->dev;
 985         ret = vb2_queue_init(src_vq);
 986         if (ret)
 987                 return ret;
 988
 989         dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
 990         dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
 991         dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
 992         dst_vq->ops = &vdec_vb2_ops;
 993         dst_vq->mem_ops = &vb2_dma_sg_memops;
 994         dst_vq->drv_priv = inst;
 995         dst_vq->buf_struct_size = sizeof(struct venus_buffer);
 996         dst_vq->allow_zero_bytesused = 1;
 997         dst_vq->min_buffers_needed = 1;
 998         dst_vq->dev = inst->core->dev;
 999         ret = vb2_queue_init(dst_vq);
1000         if (ret) {
1001                 vb2_queue_release(src_vq);
1002                 return ret;
1003         }
1004
1005         return 0;
1006 }
1007
1008 static int vdec_open(struct file *file)
1009 {
1010         struct venus_core *core = video_drvdata(file);
1011         struct venus_inst *inst;
1012         int ret;
1013
1014         inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1015         if (!inst)
1016                 return -ENOMEM;
1017
1018         INIT_LIST_HEAD(&inst->dpbbufs);
1019         INIT_LIST_HEAD(&inst->registeredbufs);
1020         INIT_LIST_HEAD(&inst->internalbufs);
1021         INIT_LIST_HEAD(&inst->list);
1022         mutex_init(&inst->lock);
1023
1024         inst->core = core;
1025         inst->session_type = VIDC_SESSION_TYPE_DEC;
1026         inst->num_output_bufs = 1;
1027
1028         venus_helper_init_instance(inst);
1029
1030         ret = pm_runtime_get_sync(core->dev_dec);
1031         if (ret < 0)
1032                 goto err_free_inst;
1033
1034         ret = vdec_ctrl_init(inst);
1035         if (ret)
1036                 goto err_put_sync;
1037
1038         ret = hfi_session_create(inst, &vdec_hfi_ops);
1039         if (ret)
1040                 goto err_ctrl_deinit;
1041
1042         vdec_inst_init(inst);
1043
1044         /*
1045          * create m2m device for every instance, the m2m context scheduling
1046          * is made by firmware side so we do not need to care about.
1047          */
1048         inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops);
1049         if (IS_ERR(inst->m2m_dev)) {
1050                 ret = PTR_ERR(inst->m2m_dev);
1051                 goto err_session_destroy;
1052         }
1053
1054         inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1055         if (IS_ERR(inst->m2m_ctx)) {
1056                 ret = PTR_ERR(inst->m2m_ctx);
1057                 goto err_m2m_release;
1058         }
1059
1060         v4l2_fh_init(&inst->fh, core->vdev_dec);
1061
1062         inst->fh.ctrl_handler = &inst->ctrl_handler;
1063         v4l2_fh_add(&inst->fh);
1064         inst->fh.m2m_ctx = inst->m2m_ctx;
1065         file->private_data = &inst->fh;
1066
1067         return 0;
1068
1069 err_m2m_release:
1070         v4l2_m2m_release(inst->m2m_dev);
1071 err_session_destroy:
1072         hfi_session_destroy(inst);
1073 err_ctrl_deinit:
1074         vdec_ctrl_deinit(inst);
1075 err_put_sync:
1076         pm_runtime_put_sync(core->dev_dec);
1077 err_free_inst:
1078         kfree(inst);
1079         return ret;
1080 }
1081
1082 static int vdec_close(struct file *file)
1083 {
1084         struct venus_inst *inst = to_inst(file);
1085
1086         v4l2_m2m_ctx_release(inst->m2m_ctx);
1087         v4l2_m2m_release(inst->m2m_dev);
1088         vdec_ctrl_deinit(inst);
1089         hfi_session_destroy(inst);
1090         mutex_destroy(&inst->lock);
1091         v4l2_fh_del(&inst->fh);
1092         v4l2_fh_exit(&inst->fh);
1093
1094         pm_runtime_put_sync(inst->core->dev_dec);
1095
1096         kfree(inst);
1097         return 0;
1098 }
1099
1100 static const struct v4l2_file_operations vdec_fops = {
1101         .owner = THIS_MODULE,
1102         .open = vdec_open,
1103         .release = vdec_close,
1104         .unlocked_ioctl = video_ioctl2,
1105         .poll = v4l2_m2m_fop_poll,
1106         .mmap = v4l2_m2m_fop_mmap,
1107 #ifdef CONFIG_COMPAT
1108         .compat_ioctl32 = v4l2_compat_ioctl32,
1109 #endif
1110 };
1111
1112 static int vdec_probe(struct platform_device *pdev)
1113 {
1114         struct device *dev = &pdev->dev;
1115         struct video_device *vdev;
1116         struct venus_core *core;
1117         int ret;
1118
1119         if (!dev->parent)
1120                 return -EPROBE_DEFER;
1121
1122         core = dev_get_drvdata(dev->parent);
1123         if (!core)
1124                 return -EPROBE_DEFER;
1125
1126         if (IS_V3(core) || IS_V4(core)) {
1127                 core->core0_clk = devm_clk_get(dev, "core");
1128                 if (IS_ERR(core->core0_clk))
1129                         return PTR_ERR(core->core0_clk);
1130         }
1131
1132         if (IS_V4(core)) {
1133                 core->core0_bus_clk = devm_clk_get(dev, "bus");
1134                 if (IS_ERR(core->core0_bus_clk))
1135                         return PTR_ERR(core->core0_bus_clk);
1136         }
1137
1138         platform_set_drvdata(pdev, core);
1139
1140         vdev = video_device_alloc();
1141         if (!vdev)
1142                 return -ENOMEM;
1143
1144         strscpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name));
1145         vdev->release = video_device_release;
1146         vdev->fops = &vdec_fops;
1147         vdev->ioctl_ops = &vdec_ioctl_ops;
1148         vdev->vfl_dir = VFL_DIR_M2M;
1149         vdev->v4l2_dev = &core->v4l2_dev;
1150         vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1151
1152         ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
1153         if (ret)
1154                 goto err_vdev_release;
1155
1156         core->vdev_dec = vdev;
1157         core->dev_dec = dev;
1158
1159         video_set_drvdata(vdev, core);
1160         pm_runtime_enable(dev);
1161
1162         return 0;
1163
1164 err_vdev_release:
1165         video_device_release(vdev);
1166         return ret;
1167 }
1168
1169 static int vdec_remove(struct platform_device *pdev)
1170 {
1171         struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1172
1173         video_unregister_device(core->vdev_dec);
1174         pm_runtime_disable(core->dev_dec);
1175
1176         return 0;
1177 }
1178
1179 static __maybe_unused int vdec_runtime_suspend(struct device *dev)
1180 {
1181         struct venus_core *core = dev_get_drvdata(dev);
1182         int ret;
1183
1184         if (IS_V1(core))
1185                 return 0;
1186
1187         ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, true);
1188         if (ret)
1189                 return ret;
1190
1191         if (IS_V4(core))
1192                 clk_disable_unprepare(core->core0_bus_clk);
1193
1194         clk_disable_unprepare(core->core0_clk);
1195
1196         return venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false);
1197 }
1198
1199 static __maybe_unused int vdec_runtime_resume(struct device *dev)
1200 {
1201         struct venus_core *core = dev_get_drvdata(dev);
1202         int ret;
1203
1204         if (IS_V1(core))
1205                 return 0;
1206
1207         ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, true);
1208         if (ret)
1209                 return ret;
1210
1211         ret = clk_prepare_enable(core->core0_clk);
1212         if (ret)
1213                 goto err_power_disable;
1214
1215         if (IS_V4(core))
1216                 ret = clk_prepare_enable(core->core0_bus_clk);
1217
1218         if (ret)
1219                 goto err_unprepare_core0;
1220
1221         return venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false);
1222
1223 err_unprepare_core0:
1224         clk_disable_unprepare(core->core0_clk);
1225 err_power_disable:
1226         venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false);
1227         return ret;
1228 }
1229
1230 static const struct dev_pm_ops vdec_pm_ops = {
1231         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1232                                 pm_runtime_force_resume)
1233         SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL)
1234 };
1235
1236 static const struct of_device_id vdec_dt_match[] = {
1237         { .compatible = "venus-decoder" },
1238         { }
1239 };
1240 MODULE_DEVICE_TABLE(of, vdec_dt_match);
1241
1242 static struct platform_driver qcom_venus_dec_driver = {
1243         .probe = vdec_probe,
1244         .remove = vdec_remove,
1245         .driver = {
1246                 .name = "qcom-venus-decoder",
1247                 .of_match_table = vdec_dt_match,
1248                 .pm = &vdec_pm_ops,
1249         },
1250 };
1251 module_platform_driver(qcom_venus_dec_driver);
1252
1253 MODULE_ALIAS("platform:qcom-venus-decoder");
1254 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver");
1255 MODULE_LICENSE("GPL v2");