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

   1 /*
   2  * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
   3  * Copyright (C) 2017 Linaro Ltd.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 and
   7  * only version 2 as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  */
  15 #include <linux/clk.h>
  16 #include <linux/module.h>
  17 #include <linux/mod_devicetable.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/pm_runtime.h>
  20 #include <linux/slab.h>
  21 #include <media/v4l2-ioctl.h>
  22 #include <media/v4l2-event.h>
  23 #include <media/v4l2-ctrls.h>
  24 #include <media/v4l2-mem2mem.h>
  25 #include <media/videobuf2-dma-sg.h>
  26
  27 #include "hfi_venus_io.h"
  28 #include "hfi_parser.h"
  29 #include "core.h"
  30 #include "helpers.h"
  31 #include "vdec.h"
  32
  33 /*
  34  * Three resons to keep MPLANE formats (despite that the number of planes
  35  * currently is one):
  36  * - the MPLANE formats allow only one plane to be used
  37  * - the downstream driver use MPLANE formats too
  38  * - future firmware versions could add support for >1 planes
  39  */
  40 static const struct venus_format vdec_formats[] = {
  41         {
  42                 .pixfmt = V4L2_PIX_FMT_NV12,
  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         }, {
  50                 .pixfmt = V4L2_PIX_FMT_MPEG2,
  51                 .num_planes = 1,
  52                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  53         }, {
  54                 .pixfmt = V4L2_PIX_FMT_H263,
  55                 .num_planes = 1,
  56                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  57         }, {
  58                 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_G,
  59                 .num_planes = 1,
  60                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  61         }, {
  62                 .pixfmt = V4L2_PIX_FMT_VC1_ANNEX_L,
  63                 .num_planes = 1,
  64                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  65         }, {
  66                 .pixfmt = V4L2_PIX_FMT_H264,
  67                 .num_planes = 1,
  68                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  69         }, {
  70                 .pixfmt = V4L2_PIX_FMT_VP8,
  71                 .num_planes = 1,
  72                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  73         }, {
  74                 .pixfmt = V4L2_PIX_FMT_VP9,
  75                 .num_planes = 1,
  76                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  77         }, {
  78                 .pixfmt = V4L2_PIX_FMT_XVID,
  79                 .num_planes = 1,
  80                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  81         }, {
  82                 .pixfmt = V4L2_PIX_FMT_HEVC,
  83                 .num_planes = 1,
  84                 .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  85         },
  86 };
  87
  88 static const struct venus_format *
  89 find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
  90 {
  91         const struct venus_format *fmt = vdec_formats;
  92         unsigned int size = ARRAY_SIZE(vdec_formats);
  93         unsigned int i;
  94
  95         for (i = 0; i < size; i++) {
  96                 if (fmt[i].pixfmt == pixfmt)
  97                         break;
  98         }
  99
 100         if (i == size || fmt[i].type != type)
 101                 return NULL;
 102
 103         if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 104             !venus_helper_check_codec(inst, fmt[i].pixfmt))
 105                 return NULL;
 106
 107         return &fmt[i];
 108 }
 109
 110 static const struct venus_format *
 111 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
 112 {
 113         const struct venus_format *fmt = vdec_formats;
 114         unsigned int size = ARRAY_SIZE(vdec_formats);
 115         unsigned int i, k = 0;
 116
 117         if (index > size)
 118                 return NULL;
 119
 120         for (i = 0; i < size; i++) {
 121                 bool valid;
 122
 123                 if (fmt[i].type != type)
 124                         continue;
 125                 valid = type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE ||
 126                         venus_helper_check_codec(inst, fmt[i].pixfmt);
 127                 if (k == index && valid)
 128                         break;
 129                 if (valid)
 130                         k++;
 131         }
 132
 133         if (i == size)
 134                 return NULL;
 135
 136         return &fmt[i];
 137 }
 138
 139 static const struct venus_format *
 140 vdec_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
 141 {
 142         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 143         struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
 144         const struct venus_format *fmt;
 145
 146         memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
 147         memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
 148
 149         fmt = find_format(inst, pixmp->pixelformat, f->type);
 150         if (!fmt) {
 151                 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 152                         pixmp->pixelformat = V4L2_PIX_FMT_NV12;
 153                 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 154                         pixmp->pixelformat = V4L2_PIX_FMT_H264;
 155                 else
 156                         return NULL;
 157                 fmt = find_format(inst, pixmp->pixelformat, f->type);
 158         }
 159
 160         pixmp->width = clamp(pixmp->width, frame_width_min(inst),
 161                              frame_width_max(inst));
 162         pixmp->height = clamp(pixmp->height, frame_height_min(inst),
 163                               frame_height_max(inst));
 164
 165         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 166                 pixmp->height = ALIGN(pixmp->height, 32);
 167
 168         if (pixmp->field == V4L2_FIELD_ANY)
 169                 pixmp->field = V4L2_FIELD_NONE;
 170         pixmp->num_planes = fmt->num_planes;
 171         pixmp->flags = 0;
 172
 173         pfmt[0].sizeimage = venus_helper_get_framesz(pixmp->pixelformat,
 174                                                      pixmp->width,
 175                                                      pixmp->height);
 176
 177         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 178                 pfmt[0].bytesperline = ALIGN(pixmp->width, 128);
 179         else
 180                 pfmt[0].bytesperline = 0;
 181
 182         return fmt;
 183 }
 184
 185 static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
 186 {
 187         struct venus_inst *inst = to_inst(file);
 188
 189         vdec_try_fmt_common(inst, f);
 190
 191         return 0;
 192 }
 193
 194 static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
 195 {
 196         struct venus_inst *inst = to_inst(file);
 197         const struct venus_format *fmt = NULL;
 198         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 199
 200         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 201                 fmt = inst->fmt_cap;
 202         else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 203                 fmt = inst->fmt_out;
 204
 205         if (inst->reconfig) {
 206                 struct v4l2_format format = {};
 207
 208                 inst->out_width = inst->reconfig_width;
 209                 inst->out_height = inst->reconfig_height;
 210                 inst->reconfig = false;
 211
 212                 format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
 213                 format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt;
 214                 format.fmt.pix_mp.width = inst->out_width;
 215                 format.fmt.pix_mp.height = inst->out_height;
 216
 217                 vdec_try_fmt_common(inst, &format);
 218
 219                 inst->width = format.fmt.pix_mp.width;
 220                 inst->height = format.fmt.pix_mp.height;
 221         }
 222
 223         pixmp->pixelformat = fmt->pixfmt;
 224
 225         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 226                 pixmp->width = inst->width;
 227                 pixmp->height = inst->height;
 228                 pixmp->colorspace = inst->colorspace;
 229                 pixmp->ycbcr_enc = inst->ycbcr_enc;
 230                 pixmp->quantization = inst->quantization;
 231                 pixmp->xfer_func = inst->xfer_func;
 232         } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 233                 pixmp->width = inst->out_width;
 234                 pixmp->height = inst->out_height;
 235         }
 236
 237         vdec_try_fmt_common(inst, f);
 238
 239         return 0;
 240 }
 241
 242 static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
 243 {
 244         struct venus_inst *inst = to_inst(file);
 245         struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 246         struct v4l2_pix_format_mplane orig_pixmp;
 247         const struct venus_format *fmt;
 248         struct v4l2_format format;
 249         u32 pixfmt_out = 0, pixfmt_cap = 0;
 250
 251         orig_pixmp = *pixmp;
 252
 253         fmt = vdec_try_fmt_common(inst, f);
 254
 255         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 256                 pixfmt_out = pixmp->pixelformat;
 257                 pixfmt_cap = inst->fmt_cap->pixfmt;
 258         } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 259                 pixfmt_cap = pixmp->pixelformat;
 260                 pixfmt_out = inst->fmt_out->pixfmt;
 261         }
 262
 263         memset(&format, 0, sizeof(format));
 264
 265         format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 266         format.fmt.pix_mp.pixelformat = pixfmt_out;
 267         format.fmt.pix_mp.width = orig_pixmp.width;
 268         format.fmt.pix_mp.height = orig_pixmp.height;
 269         vdec_try_fmt_common(inst, &format);
 270
 271         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 272                 inst->out_width = format.fmt.pix_mp.width;
 273                 inst->out_height = format.fmt.pix_mp.height;
 274                 inst->colorspace = pixmp->colorspace;
 275                 inst->ycbcr_enc = pixmp->ycbcr_enc;
 276                 inst->quantization = pixmp->quantization;
 277                 inst->xfer_func = pixmp->xfer_func;
 278         }
 279
 280         memset(&format, 0, sizeof(format));
 281
 282         format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
 283         format.fmt.pix_mp.pixelformat = pixfmt_cap;
 284         format.fmt.pix_mp.width = orig_pixmp.width;
 285         format.fmt.pix_mp.height = orig_pixmp.height;
 286         vdec_try_fmt_common(inst, &format);
 287
 288         inst->width = format.fmt.pix_mp.width;
 289         inst->height = format.fmt.pix_mp.height;
 290
 291         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 292                 inst->fmt_out = fmt;
 293         else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 294                 inst->fmt_cap = fmt;
 295
 296         return 0;
 297 }
 298
 299 static int
 300 vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
 301 {
 302         struct venus_inst *inst = to_inst(file);
 303
 304         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
 305             s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 306                 return -EINVAL;
 307
 308         switch (s->target) {
 309         case V4L2_SEL_TGT_CROP_BOUNDS:
 310         case V4L2_SEL_TGT_CROP_DEFAULT:
 311         case V4L2_SEL_TGT_CROP:
 312                 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 313                         return -EINVAL;
 314                 s->r.width = inst->out_width;
 315                 s->r.height = inst->out_height;
 316                 break;
 317         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 318         case V4L2_SEL_TGT_COMPOSE_PADDED:
 319                 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 320                         return -EINVAL;
 321                 s->r.width = inst->width;
 322                 s->r.height = inst->height;
 323                 break;
 324         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 325         case V4L2_SEL_TGT_COMPOSE:
 326                 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 327                         return -EINVAL;
 328                 s->r.width = inst->out_width;
 329                 s->r.height = inst->out_height;
 330                 break;
 331         default:
 332                 return -EINVAL;
 333         }
 334
 335         s->r.top = 0;
 336         s->r.left = 0;
 337
 338         return 0;
 339 }
 340
 341 static int
 342 vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
 343 {
 344         strlcpy(cap->driver, "qcom-venus", sizeof(cap->driver));
 345         strlcpy(cap->card, "Qualcomm Venus video decoder", sizeof(cap->card));
 346         strlcpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
 347
 348         return 0;
 349 }
 350
 351 static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
 352 {
 353         struct venus_inst *inst = to_inst(file);
 354         const struct venus_format *fmt;
 355
 356         memset(f->reserved, 0, sizeof(f->reserved));
 357
 358         fmt = find_format_by_index(inst, f->index, f->type);
 359         if (!fmt)
 360                 return -EINVAL;
 361
 362         f->pixelformat = fmt->pixfmt;
 363
 364         return 0;
 365 }
 366
 367 static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
 368 {
 369         struct venus_inst *inst = to_inst(file);
 370         struct v4l2_captureparm *cap = &a->parm.capture;
 371         struct v4l2_fract *timeperframe = &cap->timeperframe;
 372         u64 us_per_frame, fps;
 373
 374         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 375             a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 376                 return -EINVAL;
 377
 378         memset(cap->reserved, 0, sizeof(cap->reserved));
 379         if (!timeperframe->denominator)
 380                 timeperframe->denominator = inst->timeperframe.denominator;
 381         if (!timeperframe->numerator)
 382                 timeperframe->numerator = inst->timeperframe.numerator;
 383         cap->readbuffers = 0;
 384         cap->extendedmode = 0;
 385         cap->capability = V4L2_CAP_TIMEPERFRAME;
 386         us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
 387         do_div(us_per_frame, timeperframe->denominator);
 388
 389         if (!us_per_frame)
 390                 return -EINVAL;
 391
 392         fps = (u64)USEC_PER_SEC;
 393         do_div(fps, us_per_frame);
 394
 395         inst->fps = fps;
 396         inst->timeperframe = *timeperframe;
 397
 398         return 0;
 399 }
 400
 401 static int vdec_enum_framesizes(struct file *file, void *fh,
 402                                 struct v4l2_frmsizeenum *fsize)
 403 {
 404         struct venus_inst *inst = to_inst(file);
 405         const struct venus_format *fmt;
 406
 407         fmt = find_format(inst, fsize->pixel_format,
 408                           V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 409         if (!fmt) {
 410                 fmt = find_format(inst, fsize->pixel_format,
 411                                   V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
 412                 if (!fmt)
 413                         return -EINVAL;
 414         }
 415
 416         if (fsize->index)
 417                 return -EINVAL;
 418
 419         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
 420
 421         fsize->stepwise.min_width = frame_width_min(inst);
 422         fsize->stepwise.max_width = frame_width_max(inst);
 423         fsize->stepwise.step_width = frame_width_step(inst);
 424         fsize->stepwise.min_height = frame_height_min(inst);
 425         fsize->stepwise.max_height = frame_height_max(inst);
 426         fsize->stepwise.step_height = frame_height_step(inst);
 427
 428         return 0;
 429 }
 430
 431 static int vdec_subscribe_event(struct v4l2_fh *fh,
 432                                 const struct v4l2_event_subscription *sub)
 433 {
 434         switch (sub->type) {
 435         case V4L2_EVENT_EOS:
 436                 return v4l2_event_subscribe(fh, sub, 2, NULL);
 437         case V4L2_EVENT_SOURCE_CHANGE:
 438                 return v4l2_src_change_event_subscribe(fh, sub);
 439         case V4L2_EVENT_CTRL:
 440                 return v4l2_ctrl_subscribe_event(fh, sub);
 441         default:
 442                 return -EINVAL;
 443         }
 444 }
 445
 446 static int
 447 vdec_try_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
 448 {
 449         switch (cmd->cmd) {
 450         case V4L2_DEC_CMD_STOP:
 451                 if (cmd->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
 452                         return -EINVAL;
 453                 break;
 454         default:
 455                 return -EINVAL;
 456         }
 457
 458         return 0;
 459 }
 460
 461 static int
 462 vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
 463 {
 464         struct venus_inst *inst = to_inst(file);
 465         struct hfi_frame_data fdata = {0};
 466         int ret;
 467
 468         ret = vdec_try_decoder_cmd(file, fh, cmd);
 469         if (ret)
 470                 return ret;
 471
 472         mutex_lock(&inst->lock);
 473
 474         /*
 475          * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on decoder
 476          * input to signal EOS.
 477          */
 478         if (!(inst->streamon_out & inst->streamon_cap))
 479                 goto unlock;
 480
 481         fdata.buffer_type = HFI_BUFFER_INPUT;
 482         fdata.flags |= HFI_BUFFERFLAG_EOS;
 483         fdata.device_addr = 0xdeadbeef;
 484
 485         ret = hfi_session_process_buf(inst, &fdata);
 486
 487 unlock:
 488         mutex_unlock(&inst->lock);
 489         return ret;
 490 }
 491
 492 static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
 493         .vidioc_querycap = vdec_querycap,
 494         .vidioc_enum_fmt_vid_cap_mplane = vdec_enum_fmt,
 495         .vidioc_enum_fmt_vid_out_mplane = vdec_enum_fmt,
 496         .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
 497         .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
 498         .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
 499         .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
 500         .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
 501         .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
 502         .vidioc_g_selection = vdec_g_selection,
 503         .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
 504         .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
 505         .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
 506         .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
 507         .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
 508         .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
 509         .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
 510         .vidioc_streamon = v4l2_m2m_ioctl_streamon,
 511         .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
 512         .vidioc_s_parm = vdec_s_parm,
 513         .vidioc_enum_framesizes = vdec_enum_framesizes,
 514         .vidioc_subscribe_event = vdec_subscribe_event,
 515         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 516         .vidioc_try_decoder_cmd = vdec_try_decoder_cmd,
 517         .vidioc_decoder_cmd = vdec_decoder_cmd,
 518 };
 519
 520 static int vdec_set_properties(struct venus_inst *inst)
 521 {
 522         struct vdec_controls *ctr = &inst->controls.dec;
 523         struct hfi_enable en = { .enable = 1 };
 524         u32 ptype;
 525         int ret;
 526
 527         if (ctr->post_loop_deb_mode) {
 528                 ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
 529                 ret = hfi_session_set_property(inst, ptype, &en);
 530                 if (ret)
 531                         return ret;
 532         }
 533
 534         return 0;
 535 }
 536
 537 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
 538
 539 static int vdec_output_conf(struct venus_inst *inst)
 540 {
 541         struct venus_core *core = inst->core;
 542         struct hfi_enable en = { .enable = 1 };
 543         u32 width = inst->out_width;
 544         u32 height = inst->out_height;
 545         u32 out_fmt, out2_fmt;
 546         bool ubwc = false;
 547         u32 ptype;
 548         int ret;
 549
 550         ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
 551         if (ret)
 552                 return ret;
 553
 554         ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_1);
 555         if (ret)
 556                 return ret;
 557
 558         if (core->res->hfi_version == HFI_VERSION_1XX) {
 559                 ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
 560                 ret = hfi_session_set_property(inst, ptype, &en);
 561                 if (ret)
 562                         return ret;
 563         }
 564
 565         /* Force searching UBWC formats for bigger then HD resolutions */
 566         if (width > 1920 && height > ALIGN(1080, 32))
 567                 ubwc = true;
 568
 569         /* For Venus v4 UBWC format is mandatory */
 570         if (IS_V4(core))
 571                 ubwc = true;
 572
 573         ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
 574                                         &out2_fmt, ubwc);
 575         if (ret)
 576                 return ret;
 577
 578         inst->output_buf_size =
 579                         venus_helper_get_framesz_raw(out_fmt, width, height);
 580         inst->output2_buf_size =
 581                         venus_helper_get_framesz_raw(out2_fmt, width, height);
 582
 583         if (is_ubwc_fmt(out_fmt)) {
 584                 inst->opb_buftype = HFI_BUFFER_OUTPUT2;
 585                 inst->opb_fmt = out2_fmt;
 586                 inst->dpb_buftype = HFI_BUFFER_OUTPUT;
 587                 inst->dpb_fmt = out_fmt;
 588         } else if (is_ubwc_fmt(out2_fmt)) {
 589                 inst->opb_buftype = HFI_BUFFER_OUTPUT;
 590                 inst->opb_fmt = out_fmt;
 591                 inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
 592                 inst->dpb_fmt = out2_fmt;
 593         } else {
 594                 inst->opb_buftype = HFI_BUFFER_OUTPUT;
 595                 inst->opb_fmt = out_fmt;
 596                 inst->dpb_buftype = 0;
 597                 inst->dpb_fmt = 0;
 598         }
 599
 600         ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
 601                                           inst->opb_buftype);
 602         if (ret)
 603                 return ret;
 604
 605         if (inst->dpb_fmt) {
 606                 ret = venus_helper_set_multistream(inst, false, true);
 607                 if (ret)
 608                         return ret;
 609
 610                 ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
 611                                                   inst->dpb_buftype);
 612                 if (ret)
 613                         return ret;
 614
 615                 ret = venus_helper_set_output_resolution(inst, width, height,
 616                                                          HFI_BUFFER_OUTPUT2);
 617                 if (ret)
 618                         return ret;
 619         }
 620
 621         if (IS_V3(core) || IS_V4(core)) {
 622                 if (inst->output2_buf_size) {
 623                         ret = venus_helper_set_bufsize(inst,
 624                                                        inst->output2_buf_size,
 625                                                        HFI_BUFFER_OUTPUT2);
 626                         if (ret)
 627                                 return ret;
 628                 }
 629
 630                 if (inst->output_buf_size) {
 631                         ret = venus_helper_set_bufsize(inst,
 632                                                        inst->output_buf_size,
 633                                                        HFI_BUFFER_OUTPUT);
 634                         if (ret)
 635                                 return ret;
 636                 }
 637         }
 638
 639         ret = venus_helper_set_dyn_bufmode(inst);
 640         if (ret)
 641                 return ret;
 642
 643         return 0;
 644 }
 645
 646 static int vdec_init_session(struct venus_inst *inst)
 647 {
 648         int ret;
 649
 650         ret = hfi_session_init(inst, inst->fmt_out->pixfmt);
 651         if (ret)
 652                 return ret;
 653
 654         ret = venus_helper_set_input_resolution(inst, inst->out_width,
 655                                                 inst->out_height);
 656         if (ret)
 657                 goto deinit;
 658
 659         ret = venus_helper_set_color_format(inst, inst->fmt_cap->pixfmt);
 660         if (ret)
 661                 goto deinit;
 662
 663         return 0;
 664 deinit:
 665         hfi_session_deinit(inst);
 666         return ret;
 667 }
 668
 669 static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num,
 670                             unsigned int *out_num)
 671 {
 672         enum hfi_version ver = inst->core->res->hfi_version;
 673         struct hfi_buffer_requirements bufreq;
 674         int ret;
 675
 676         *in_num = *out_num = 0;
 677
 678         ret = vdec_init_session(inst);
 679         if (ret)
 680                 return ret;
 681
 682         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
 683         if (ret)
 684                 goto deinit;
 685
 686         *in_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
 687
 688         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
 689         if (ret)
 690                 goto deinit;
 691
 692         *out_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
 693
 694 deinit:
 695         hfi_session_deinit(inst);
 696
 697         return ret;
 698 }
 699
 700 static int vdec_queue_setup(struct vb2_queue *q,
 701                             unsigned int *num_buffers, unsigned int *num_planes,
 702                             unsigned int sizes[], struct device *alloc_devs[])
 703 {
 704         struct venus_inst *inst = vb2_get_drv_priv(q);
 705         unsigned int in_num, out_num;
 706         int ret = 0;
 707
 708         if (*num_planes) {
 709                 unsigned int output_buf_size = venus_helper_get_opb_size(inst);
 710
 711                 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 712                     *num_planes != inst->fmt_out->num_planes)
 713                         return -EINVAL;
 714
 715                 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 716                     *num_planes != inst->fmt_cap->num_planes)
 717                         return -EINVAL;
 718
 719                 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 720                     sizes[0] < inst->input_buf_size)
 721                         return -EINVAL;
 722
 723                 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 724                     sizes[0] < output_buf_size)
 725                         return -EINVAL;
 726
 727                 return 0;
 728         }
 729
 730         ret = vdec_num_buffers(inst, &in_num, &out_num);
 731         if (ret)
 732                 return ret;
 733
 734         switch (q->type) {
 735         case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
 736                 *num_planes = inst->fmt_out->num_planes;
 737                 sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
 738                                                     inst->out_width,
 739                                                     inst->out_height);
 740                 inst->input_buf_size = sizes[0];
 741                 *num_buffers = max(*num_buffers, in_num);
 742                 inst->num_input_bufs = *num_buffers;
 743                 inst->num_output_bufs = out_num;
 744                 break;
 745         case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
 746                 *num_planes = inst->fmt_cap->num_planes;
 747                 sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
 748                                                     inst->width,
 749                                                     inst->height);
 750                 inst->output_buf_size = sizes[0];
 751                 *num_buffers = max(*num_buffers, out_num);
 752                 inst->num_output_bufs = *num_buffers;
 753                 break;
 754         default:
 755                 ret = -EINVAL;
 756                 break;
 757         }
 758
 759         return ret;
 760 }
 761
 762 static int vdec_verify_conf(struct venus_inst *inst)
 763 {
 764         enum hfi_version ver = inst->core->res->hfi_version;
 765         struct hfi_buffer_requirements bufreq;
 766         int ret;
 767
 768         if (!inst->num_input_bufs || !inst->num_output_bufs)
 769                 return -EINVAL;
 770
 771         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
 772         if (ret)
 773                 return ret;
 774
 775         if (inst->num_output_bufs < bufreq.count_actual ||
 776             inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
 777                 return -EINVAL;
 778
 779         ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
 780         if (ret)
 781                 return ret;
 782
 783         if (inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
 784                 return -EINVAL;
 785
 786         return 0;
 787 }
 788
 789 static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
 790 {
 791         struct venus_inst *inst = vb2_get_drv_priv(q);
 792         int ret;
 793
 794         mutex_lock(&inst->lock);
 795
 796         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 797                 inst->streamon_out = 1;
 798         else
 799                 inst->streamon_cap = 1;
 800
 801         if (!(inst->streamon_out & inst->streamon_cap)) {
 802                 mutex_unlock(&inst->lock);
 803                 return 0;
 804         }
 805
 806         venus_helper_init_instance(inst);
 807
 808         inst->reconfig = false;
 809         inst->sequence_cap = 0;
 810         inst->sequence_out = 0;
 811
 812         ret = vdec_init_session(inst);
 813         if (ret)
 814                 goto bufs_done;
 815
 816         ret = vdec_set_properties(inst);
 817         if (ret)
 818                 goto deinit_sess;
 819
 820         ret = vdec_output_conf(inst);
 821         if (ret)
 822                 goto deinit_sess;
 823
 824         ret = vdec_verify_conf(inst);
 825         if (ret)
 826                 goto deinit_sess;
 827
 828         ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
 829                                         VB2_MAX_FRAME, VB2_MAX_FRAME);
 830         if (ret)
 831                 goto deinit_sess;
 832
 833         ret = venus_helper_alloc_dpb_bufs(inst);
 834         if (ret)
 835                 goto deinit_sess;
 836
 837         ret = venus_helper_vb2_start_streaming(inst);
 838         if (ret)
 839                 goto deinit_sess;
 840
 841         mutex_unlock(&inst->lock);
 842
 843         return 0;
 844
 845 deinit_sess:
 846         hfi_session_deinit(inst);
 847 bufs_done:
 848         venus_helper_buffers_done(inst, VB2_BUF_STATE_QUEUED);
 849         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 850                 inst->streamon_out = 0;
 851         else
 852                 inst->streamon_cap = 0;
 853         mutex_unlock(&inst->lock);
 854         return ret;
 855 }
 856
 857 static const struct vb2_ops vdec_vb2_ops = {
 858         .queue_setup = vdec_queue_setup,
 859         .buf_init = venus_helper_vb2_buf_init,
 860         .buf_prepare = venus_helper_vb2_buf_prepare,
 861         .start_streaming = vdec_start_streaming,
 862         .stop_streaming = venus_helper_vb2_stop_streaming,
 863         .buf_queue = venus_helper_vb2_buf_queue,
 864 };
 865
 866 static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
 867                           u32 tag, u32 bytesused, u32 data_offset, u32 flags,
 868                           u32 hfi_flags, u64 timestamp_us)
 869 {
 870         enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
 871         struct vb2_v4l2_buffer *vbuf;
 872         struct vb2_buffer *vb;
 873         unsigned int type;
 874
 875         if (buf_type == HFI_BUFFER_INPUT)
 876                 type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 877         else
 878                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
 879
 880         vbuf = venus_helper_find_buf(inst, type, tag);
 881         if (!vbuf)
 882                 return;
 883
 884         vbuf->flags = flags;
 885         vbuf->field = V4L2_FIELD_NONE;
 886
 887         if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 888                 unsigned int opb_sz = venus_helper_get_opb_size(inst);
 889
 890                 vb = &vbuf->vb2_buf;
 891                 vb->planes[0].bytesused =
 892                         max_t(unsigned int, opb_sz, bytesused);
 893                 vb->planes[0].data_offset = data_offset;
 894                 vb->timestamp = timestamp_us * NSEC_PER_USEC;
 895                 vbuf->sequence = inst->sequence_cap++;
 896
 897                 if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
 898                         const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
 899
 900                         v4l2_event_queue_fh(&inst->fh, &ev);
 901                 }
 902         } else {
 903                 vbuf->sequence = inst->sequence_out++;
 904         }
 905
 906         if (hfi_flags & HFI_BUFFERFLAG_READONLY)
 907                 venus_helper_acquire_buf_ref(vbuf);
 908
 909         if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
 910                 state = VB2_BUF_STATE_ERROR;
 911
 912         v4l2_m2m_buf_done(vbuf, state);
 913 }
 914
 915 static void vdec_event_notify(struct venus_inst *inst, u32 event,
 916                               struct hfi_event_data *data)
 917 {
 918         struct venus_core *core = inst->core;
 919         struct device *dev = core->dev_dec;
 920         static const struct v4l2_event ev = {
 921                 .type = V4L2_EVENT_SOURCE_CHANGE,
 922                 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION };
 923
 924         switch (event) {
 925         case EVT_SESSION_ERROR:
 926                 inst->session_error = true;
 927                 dev_err(dev, "dec: event session error %x\n", inst->error);
 928                 break;
 929         case EVT_SYS_EVENT_CHANGE:
 930                 switch (data->event_type) {
 931                 case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
 932                         hfi_session_continue(inst);
 933                         dev_dbg(dev, "event sufficient resources\n");
 934                         break;
 935                 case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
 936                         inst->reconfig_height = data->height;
 937                         inst->reconfig_width = data->width;
 938                         inst->reconfig = true;
 939
 940                         v4l2_event_queue_fh(&inst->fh, &ev);
 941
 942                         dev_dbg(dev, "event not sufficient resources (%ux%u)\n",
 943                                 data->width, data->height);
 944                         break;
 945                 case HFI_EVENT_RELEASE_BUFFER_REFERENCE:
 946                         venus_helper_release_buf_ref(inst, data->tag);
 947                         break;
 948                 default:
 949                         break;
 950                 }
 951                 break;
 952         default:
 953                 break;
 954         }
 955 }
 956
 957 static const struct hfi_inst_ops vdec_hfi_ops = {
 958         .buf_done = vdec_buf_done,
 959         .event_notify = vdec_event_notify,
 960 };
 961
 962 static void vdec_inst_init(struct venus_inst *inst)
 963 {
 964         inst->fmt_out = &vdec_formats[6];
 965         inst->fmt_cap = &vdec_formats[0];
 966         inst->width = 1280;
 967         inst->height = ALIGN(720, 32);
 968         inst->out_width = 1280;
 969         inst->out_height = 720;
 970         inst->fps = 30;
 971         inst->timeperframe.numerator = 1;
 972         inst->timeperframe.denominator = 30;
 973         inst->hfi_codec = HFI_VIDEO_CODEC_H264;
 974 }
 975
 976 static const struct v4l2_m2m_ops vdec_m2m_ops = {
 977         .device_run = venus_helper_m2m_device_run,
 978         .job_abort = venus_helper_m2m_job_abort,
 979 };
 980
 981 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
 982                           struct vb2_queue *dst_vq)
 983 {
 984         struct venus_inst *inst = priv;
 985         int ret;
 986
 987         src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 988         src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
 989         src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
 990         src_vq->ops = &vdec_vb2_ops;
 991         src_vq->mem_ops = &vb2_dma_sg_memops;
 992         src_vq->drv_priv = inst;
 993         src_vq->buf_struct_size = sizeof(struct venus_buffer);
 994         src_vq->allow_zero_bytesused = 1;
 995         src_vq->min_buffers_needed = 1;
 996         src_vq->dev = inst->core->dev;
 997         ret = vb2_queue_init(src_vq);
 998         if (ret)
 999                 return ret;
1000
1001         dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1002         dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1003         dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1004         dst_vq->ops = &vdec_vb2_ops;
1005         dst_vq->mem_ops = &vb2_dma_sg_memops;
1006         dst_vq->drv_priv = inst;
1007         dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1008         dst_vq->allow_zero_bytesused = 1;
1009         dst_vq->min_buffers_needed = 1;
1010         dst_vq->dev = inst->core->dev;
1011         ret = vb2_queue_init(dst_vq);
1012         if (ret) {
1013                 vb2_queue_release(src_vq);
1014                 return ret;
1015         }
1016
1017         return 0;
1018 }
1019
1020 static int vdec_open(struct file *file)
1021 {
1022         struct venus_core *core = video_drvdata(file);
1023         struct venus_inst *inst;
1024         int ret;
1025
1026         inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1027         if (!inst)
1028                 return -ENOMEM;
1029
1030         INIT_LIST_HEAD(&inst->dpbbufs);
1031         INIT_LIST_HEAD(&inst->registeredbufs);
1032         INIT_LIST_HEAD(&inst->internalbufs);
1033         INIT_LIST_HEAD(&inst->list);
1034         mutex_init(&inst->lock);
1035
1036         inst->core = core;
1037         inst->session_type = VIDC_SESSION_TYPE_DEC;
1038         inst->num_output_bufs = 1;
1039
1040         venus_helper_init_instance(inst);
1041
1042         ret = pm_runtime_get_sync(core->dev_dec);
1043         if (ret < 0)
1044                 goto err_free_inst;
1045
1046         ret = vdec_ctrl_init(inst);
1047         if (ret)
1048                 goto err_put_sync;
1049
1050         ret = hfi_session_create(inst, &vdec_hfi_ops);
1051         if (ret)
1052                 goto err_ctrl_deinit;
1053
1054         vdec_inst_init(inst);
1055
1056         /*
1057          * create m2m device for every instance, the m2m context scheduling
1058          * is made by firmware side so we do not need to care about.
1059          */
1060         inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops);
1061         if (IS_ERR(inst->m2m_dev)) {
1062                 ret = PTR_ERR(inst->m2m_dev);
1063                 goto err_session_destroy;
1064         }
1065
1066         inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1067         if (IS_ERR(inst->m2m_ctx)) {
1068                 ret = PTR_ERR(inst->m2m_ctx);
1069                 goto err_m2m_release;
1070         }
1071
1072         v4l2_fh_init(&inst->fh, core->vdev_dec);
1073
1074         inst->fh.ctrl_handler = &inst->ctrl_handler;
1075         v4l2_fh_add(&inst->fh);
1076         inst->fh.m2m_ctx = inst->m2m_ctx;
1077         file->private_data = &inst->fh;
1078
1079         return 0;
1080
1081 err_m2m_release:
1082         v4l2_m2m_release(inst->m2m_dev);
1083 err_session_destroy:
1084         hfi_session_destroy(inst);
1085 err_ctrl_deinit:
1086         vdec_ctrl_deinit(inst);
1087 err_put_sync:
1088         pm_runtime_put_sync(core->dev_dec);
1089 err_free_inst:
1090         kfree(inst);
1091         return ret;
1092 }
1093
1094 static int vdec_close(struct file *file)
1095 {
1096         struct venus_inst *inst = to_inst(file);
1097
1098         v4l2_m2m_ctx_release(inst->m2m_ctx);
1099         v4l2_m2m_release(inst->m2m_dev);
1100         vdec_ctrl_deinit(inst);
1101         hfi_session_destroy(inst);
1102         mutex_destroy(&inst->lock);
1103         v4l2_fh_del(&inst->fh);
1104         v4l2_fh_exit(&inst->fh);
1105
1106         pm_runtime_put_sync(inst->core->dev_dec);
1107
1108         kfree(inst);
1109         return 0;
1110 }
1111
1112 static const struct v4l2_file_operations vdec_fops = {
1113         .owner = THIS_MODULE,
1114         .open = vdec_open,
1115         .release = vdec_close,
1116         .unlocked_ioctl = video_ioctl2,
1117         .poll = v4l2_m2m_fop_poll,
1118         .mmap = v4l2_m2m_fop_mmap,
1119 #ifdef CONFIG_COMPAT
1120         .compat_ioctl32 = v4l2_compat_ioctl32,
1121 #endif
1122 };
1123
1124 static int vdec_probe(struct platform_device *pdev)
1125 {
1126         struct device *dev = &pdev->dev;
1127         struct video_device *vdev;
1128         struct venus_core *core;
1129         int ret;
1130
1131         if (!dev->parent)
1132                 return -EPROBE_DEFER;
1133
1134         core = dev_get_drvdata(dev->parent);
1135         if (!core)
1136                 return -EPROBE_DEFER;
1137
1138         if (IS_V3(core) || IS_V4(core)) {
1139                 core->core0_clk = devm_clk_get(dev, "core");
1140                 if (IS_ERR(core->core0_clk))
1141                         return PTR_ERR(core->core0_clk);
1142         }
1143
1144         if (IS_V4(core)) {
1145                 core->core0_bus_clk = devm_clk_get(dev, "bus");
1146                 if (IS_ERR(core->core0_bus_clk))
1147                         return PTR_ERR(core->core0_bus_clk);
1148         }
1149
1150         platform_set_drvdata(pdev, core);
1151
1152         vdev = video_device_alloc();
1153         if (!vdev)
1154                 return -ENOMEM;
1155
1156         strlcpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name));
1157         vdev->release = video_device_release;
1158         vdev->fops = &vdec_fops;
1159         vdev->ioctl_ops = &vdec_ioctl_ops;
1160         vdev->vfl_dir = VFL_DIR_M2M;
1161         vdev->v4l2_dev = &core->v4l2_dev;
1162         vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1163
1164         ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
1165         if (ret)
1166                 goto err_vdev_release;
1167
1168         core->vdev_dec = vdev;
1169         core->dev_dec = dev;
1170
1171         video_set_drvdata(vdev, core);
1172         pm_runtime_enable(dev);
1173
1174         return 0;
1175
1176 err_vdev_release:
1177         video_device_release(vdev);
1178         return ret;
1179 }
1180
1181 static int vdec_remove(struct platform_device *pdev)
1182 {
1183         struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1184
1185         video_unregister_device(core->vdev_dec);
1186         pm_runtime_disable(core->dev_dec);
1187
1188         return 0;
1189 }
1190
1191 static __maybe_unused int vdec_runtime_suspend(struct device *dev)
1192 {
1193         struct venus_core *core = dev_get_drvdata(dev);
1194         int ret;
1195
1196         if (IS_V1(core))
1197                 return 0;
1198
1199         ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, true);
1200         if (ret)
1201                 return ret;
1202
1203         if (IS_V4(core))
1204                 clk_disable_unprepare(core->core0_bus_clk);
1205
1206         clk_disable_unprepare(core->core0_clk);
1207
1208         return venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false);
1209 }
1210
1211 static __maybe_unused int vdec_runtime_resume(struct device *dev)
1212 {
1213         struct venus_core *core = dev_get_drvdata(dev);
1214         int ret;
1215
1216         if (IS_V1(core))
1217                 return 0;
1218
1219         ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, true);
1220         if (ret)
1221                 return ret;
1222
1223         ret = clk_prepare_enable(core->core0_clk);
1224         if (ret)
1225                 goto err_power_disable;
1226
1227         if (IS_V4(core))
1228                 ret = clk_prepare_enable(core->core0_bus_clk);
1229
1230         if (ret)
1231                 goto err_unprepare_core0;
1232
1233         return venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false);
1234
1235 err_unprepare_core0:
1236         clk_disable_unprepare(core->core0_clk);
1237 err_power_disable:
1238         venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false);
1239         return ret;
1240 }
1241
1242 static const struct dev_pm_ops vdec_pm_ops = {
1243         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1244                                 pm_runtime_force_resume)
1245         SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL)
1246 };
1247
1248 static const struct of_device_id vdec_dt_match[] = {
1249         { .compatible = "venus-decoder" },
1250         { }
1251 };
1252 MODULE_DEVICE_TABLE(of, vdec_dt_match);
1253
1254 static struct platform_driver qcom_venus_dec_driver = {
1255         .probe = vdec_probe,
1256         .remove = vdec_remove,
1257         .driver = {
1258                 .name = "qcom-venus-decoder",
1259                 .of_match_table = vdec_dt_match,
1260                 .pm = &vdec_pm_ops,
1261         },
1262 };
1263 module_platform_driver(qcom_venus_dec_driver);
1264
1265 MODULE_ALIAS("platform:qcom-venus-decoder");
1266 MODULE_DESCRIPTION("Qualcomm Venus video decoder driver");
1267 MODULE_LICENSE("GPL v2");