vdec.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
   4 * Copyright (C) 2017 Linaro Ltd.
   5 */
   6#include <linux/clk.h>
   7#include <linux/module.h>
   8#include <linux/mod_devicetable.h>
   9#include <linux/platform_device.h>
  10#include <linux/pm_runtime.h>
  11#include <linux/slab.h>
  12#include <media/v4l2-ioctl.h>
  13#include <media/v4l2-event.h>
  14#include <media/v4l2-ctrls.h>
  15#include <media/v4l2-mem2mem.h>
  16#include <media/videobuf2-dma-contig.h>
  17
  18#include "hfi_venus_io.h"
  19#include "hfi_parser.h"
  20#include "core.h"
  21#include "helpers.h"
  22#include "vdec.h"
  23#include "pm_helpers.h"
  24
  25/*
  26 * Three resons to keep MPLANE formats (despite that the number of planes
  27 * currently is one):
  28 * - the MPLANE formats allow only one plane to be used
  29 * - the downstream driver use MPLANE formats too
  30 * - future firmware versions could add support for >1 planes
  31 */
  32static const struct venus_format vdec_formats[] = {
  33	[VENUS_FMT_NV12] = {
  34		.pixfmt = V4L2_PIX_FMT_NV12,
  35		.num_planes = 1,
  36		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  37	},
  38	[VENUS_FMT_QC08C] = {
  39		.pixfmt = V4L2_PIX_FMT_QC08C,
  40		.num_planes = 1,
  41		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  42	},
  43	[VENUS_FMT_QC10C] = {
  44		.pixfmt = V4L2_PIX_FMT_QC10C,
  45		.num_planes = 1,
  46		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  47	},
  48	[VENUS_FMT_P010] = {
  49		.pixfmt = V4L2_PIX_FMT_P010,
  50		.num_planes = 1,
  51		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
  52	},
  53	[VENUS_FMT_H264] = {
  54		.pixfmt = V4L2_PIX_FMT_H264,
  55		.num_planes = 1,
  56		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  57		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  58	},
  59	[VENUS_FMT_VP8] = {
  60		.pixfmt = V4L2_PIX_FMT_VP8,
  61		.num_planes = 1,
  62		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  63		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  64	},
  65	[VENUS_FMT_VP9] = {
  66		.pixfmt = V4L2_PIX_FMT_VP9,
  67		.num_planes = 1,
  68		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  69		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  70	},
  71	[VENUS_FMT_HEVC] = {
  72		.pixfmt = V4L2_PIX_FMT_HEVC,
  73		.num_planes = 1,
  74		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  75		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  76	},
  77	[VENUS_FMT_VC1_ANNEX_G] = {
  78		.pixfmt = V4L2_PIX_FMT_VC1_ANNEX_G,
  79		.num_planes = 1,
  80		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  81		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  82	},
  83	[VENUS_FMT_VC1_ANNEX_L] = {
  84		.pixfmt = V4L2_PIX_FMT_VC1_ANNEX_L,
  85		.num_planes = 1,
  86		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  87		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  88	},
  89	[VENUS_FMT_MPEG4] = {
  90		.pixfmt = V4L2_PIX_FMT_MPEG4,
  91		.num_planes = 1,
  92		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  93		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
  94	},
  95	[VENUS_FMT_MPEG2] = {
  96		.pixfmt = V4L2_PIX_FMT_MPEG2,
  97		.num_planes = 1,
  98		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
  99		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
 100	},
 101	[VENUS_FMT_H263] = {
 102		.pixfmt = V4L2_PIX_FMT_H263,
 103		.num_planes = 1,
 104		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
 105		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
 106	},
 107	[VENUS_FMT_XVID] = {
 108		.pixfmt = V4L2_PIX_FMT_XVID,
 109		.num_planes = 1,
 110		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
 111		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
 112	},
 113
 114};
 115
 116static const struct venus_format *
 117find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
 118{
 119	const struct venus_format *fmt = vdec_formats;
 120	unsigned int size = ARRAY_SIZE(vdec_formats);
 121	unsigned int i;
 122
 123	for (i = 0; i < size; i++) {
 124		if (fmt[i].pixfmt == pixfmt)
 125			break;
 126	}
 127
 128	if (i == size || fmt[i].type != type)
 129		return NULL;
 130
 131	if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 132	    !venus_helper_check_codec(inst, fmt[i].pixfmt))
 133		return NULL;
 134
 135	if (V4L2_TYPE_IS_CAPTURE(type) &&
 136	    !venus_helper_check_format(inst, fmt[i].pixfmt))
 137		return NULL;
 138
 139	if (V4L2_TYPE_IS_CAPTURE(type) && fmt[i].pixfmt == V4L2_PIX_FMT_QC10C &&
 140	    !(inst->bit_depth == VIDC_BITDEPTH_10))
 141		return NULL;
 142
 143	return &fmt[i];
 144}
 145
 146static const struct venus_format *
 147find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
 148{
 149	const struct venus_format *fmt = vdec_formats;
 150	unsigned int size = ARRAY_SIZE(vdec_formats);
 151	unsigned int i, k = 0;
 152
 153	if (index > size)
 154		return NULL;
 155
 156	for (i = 0; i < size; i++) {
 157		bool valid = false;
 158
 159		if (fmt[i].type != type)
 160			continue;
 161
 162		if (V4L2_TYPE_IS_OUTPUT(type)) {
 163			valid = venus_helper_check_codec(inst, fmt[i].pixfmt);
 164		} else {
 165			valid = venus_helper_check_format(inst, fmt[i].pixfmt);
 166
 167			if (fmt[i].pixfmt == V4L2_PIX_FMT_QC10C &&
 168			    !(inst->bit_depth == VIDC_BITDEPTH_10))
 169				valid = false;
 170		}
 171
 172		if (k == index && valid)
 173			break;
 174		if (valid)
 175			k++;
 176	}
 177
 178	if (i == size)
 179		return NULL;
 180
 181	return &fmt[i];
 182}
 183
 184static const struct venus_format *
 185vdec_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
 186{
 187	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 188	struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
 189	const struct venus_format *fmt;
 190	u32 szimage;
 191
 192	memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
 193	memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
 194
 195	fmt = find_format(inst, pixmp->pixelformat, f->type);
 196	if (!fmt) {
 197		if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 198			pixmp->pixelformat = V4L2_PIX_FMT_NV12;
 199		else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 200			pixmp->pixelformat = V4L2_PIX_FMT_H264;
 201		else
 202			return NULL;
 203		fmt = find_format(inst, pixmp->pixelformat, f->type);
 204		if (!fmt)
 205			return NULL;
 206	}
 207
 208	pixmp->width = clamp(pixmp->width, frame_width_min(inst),
 209			     frame_width_max(inst));
 210	pixmp->height = clamp(pixmp->height, frame_height_min(inst),
 211			      frame_height_max(inst));
 212
 213	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 214		pixmp->height = ALIGN(pixmp->height, 32);
 215
 216	if (pixmp->field == V4L2_FIELD_ANY)
 217		pixmp->field = V4L2_FIELD_NONE;
 218	pixmp->num_planes = fmt->num_planes;
 219	pixmp->flags = 0;
 220
 221	szimage = venus_helper_get_framesz(pixmp->pixelformat, pixmp->width,
 222					   pixmp->height);
 223
 224	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 225		unsigned int stride = pixmp->width;
 226
 227		if (pixmp->pixelformat == V4L2_PIX_FMT_P010)
 228			stride *= 2;
 229
 230		pfmt[0].sizeimage = szimage;
 231		pfmt[0].bytesperline = ALIGN(stride, 128);
 232	} else {
 233		pfmt[0].sizeimage = clamp_t(u32, pfmt[0].sizeimage, 0, SZ_8M);
 234		pfmt[0].sizeimage = max(pfmt[0].sizeimage, szimage);
 235		pfmt[0].bytesperline = 0;
 236	}
 237
 238	return fmt;
 239}
 240
 241static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
 242{
 243	struct venus_inst *inst = to_inst(file);
 244
 245	vdec_try_fmt_common(inst, f);
 246
 247	return 0;
 248}
 249
 250static int vdec_check_src_change(struct venus_inst *inst)
 251{
 252	int ret;
 253
 254	if (inst->subscriptions & V4L2_EVENT_SOURCE_CHANGE &&
 255	    inst->codec_state == VENUS_DEC_STATE_INIT &&
 256	    !inst->reconfig)
 257		return -EINVAL;
 258
 259	if (inst->subscriptions & V4L2_EVENT_SOURCE_CHANGE)
 260		return 0;
 261
 262	/*
 263	 * The code snippet below is a workaround for backward compatibility
 264	 * with applications which doesn't support V4L2 events. It will be
 265	 * dropped in future once those applications are fixed.
 266	 */
 267
 268	if (inst->codec_state != VENUS_DEC_STATE_INIT)
 269		goto done;
 270
 271	ret = wait_event_timeout(inst->reconf_wait, inst->reconfig,
 272				 msecs_to_jiffies(100));
 273	if (!ret)
 274		return -EINVAL;
 275
 276	if (!(inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) ||
 277	    !inst->reconfig)
 278		dev_dbg(inst->core->dev, VDBGH "wrong state\n");
 279
 280done:
 281	return 0;
 282}
 283
 284static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
 285{
 286	struct venus_inst *inst = to_inst(file);
 287	const struct venus_format *fmt = NULL;
 288	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 289	int ret;
 290
 291	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 292		fmt = inst->fmt_cap;
 293	else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 294		fmt = inst->fmt_out;
 295
 296	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 297		ret = vdec_check_src_change(inst);
 298		if (ret)
 299			return ret;
 300	}
 301
 302	pixmp->pixelformat = fmt->pixfmt;
 303
 304	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 305		pixmp->width = inst->width;
 306		pixmp->height = inst->height;
 307		pixmp->colorspace = inst->colorspace;
 308		pixmp->ycbcr_enc = inst->ycbcr_enc;
 309		pixmp->quantization = inst->quantization;
 310		pixmp->xfer_func = inst->xfer_func;
 311	} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 312		pixmp->width = inst->out_width;
 313		pixmp->height = inst->out_height;
 314	}
 315
 316	vdec_try_fmt_common(inst, f);
 317
 318	return 0;
 319}
 320
 321static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
 322{
 323	struct venus_inst *inst = to_inst(file);
 324	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
 325	struct v4l2_pix_format_mplane orig_pixmp;
 326	const struct venus_format *fmt;
 327	struct v4l2_format format;
 328	u32 pixfmt_out = 0, pixfmt_cap = 0;
 329	struct vb2_queue *q;
 330
 331	q = v4l2_m2m_get_vq(inst->m2m_ctx, f->type);
 332
 333	if (vb2_is_busy(q))
 334		return -EBUSY;
 335
 336	orig_pixmp = *pixmp;
 337
 338	fmt = vdec_try_fmt_common(inst, f);
 339
 340	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 341		pixfmt_out = pixmp->pixelformat;
 342		pixfmt_cap = inst->fmt_cap->pixfmt;
 343	} else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 344		pixfmt_cap = pixmp->pixelformat;
 345		pixfmt_out = inst->fmt_out->pixfmt;
 346	}
 347
 348	memset(&format, 0, sizeof(format));
 349
 350	format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 351	format.fmt.pix_mp.pixelformat = pixfmt_out;
 352	format.fmt.pix_mp.width = orig_pixmp.width;
 353	format.fmt.pix_mp.height = orig_pixmp.height;
 354	vdec_try_fmt_common(inst, &format);
 355
 356	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 357		inst->out_width = format.fmt.pix_mp.width;
 358		inst->out_height = format.fmt.pix_mp.height;
 359		inst->colorspace = pixmp->colorspace;
 360		inst->ycbcr_enc = pixmp->ycbcr_enc;
 361		inst->quantization = pixmp->quantization;
 362		inst->xfer_func = pixmp->xfer_func;
 363		inst->input_buf_size = pixmp->plane_fmt[0].sizeimage;
 364	}
 365
 366	memset(&format, 0, sizeof(format));
 367
 368	format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
 369	format.fmt.pix_mp.pixelformat = pixfmt_cap;
 370	format.fmt.pix_mp.width = orig_pixmp.width;
 371	format.fmt.pix_mp.height = orig_pixmp.height;
 372	vdec_try_fmt_common(inst, &format);
 373
 374	inst->width = format.fmt.pix_mp.width;
 375	inst->height = format.fmt.pix_mp.height;
 376	inst->crop.top = 0;
 377	inst->crop.left = 0;
 378	inst->crop.width = inst->width;
 379	inst->crop.height = inst->height;
 380
 381	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 382		inst->fmt_out = fmt;
 383	else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 384		inst->fmt_cap = fmt;
 385		inst->output2_buf_size =
 386			venus_helper_get_framesz(pixfmt_cap, orig_pixmp.width, orig_pixmp.height);
 387	}
 388
 389	return 0;
 390}
 391
 392static int
 393vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
 394{
 395	struct venus_inst *inst = to_inst(file);
 396
 397	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
 398	    s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 399		return -EINVAL;
 400
 401	s->r.top = 0;
 402	s->r.left = 0;
 403
 404	switch (s->target) {
 405	case V4L2_SEL_TGT_CROP_BOUNDS:
 406	case V4L2_SEL_TGT_CROP_DEFAULT:
 407	case V4L2_SEL_TGT_CROP:
 408		if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 409			return -EINVAL;
 410		s->r.width = inst->out_width;
 411		s->r.height = inst->out_height;
 412		break;
 413	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 414	case V4L2_SEL_TGT_COMPOSE_PADDED:
 415		if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 416			return -EINVAL;
 417		s->r.width = inst->width;
 418		s->r.height = inst->height;
 419		break;
 420	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 421	case V4L2_SEL_TGT_COMPOSE:
 422		if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 423			return -EINVAL;
 424		s->r = inst->crop;
 425		break;
 426	default:
 427		return -EINVAL;
 428	}
 429
 430	return 0;
 431}
 432
 433static int
 434vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
 435{
 436	strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
 437	strscpy(cap->card, "Qualcomm Venus video decoder", sizeof(cap->card));
 438	strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
 439
 440	return 0;
 441}
 442
 443static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
 444{
 445	struct venus_inst *inst = to_inst(file);
 446	const struct venus_format *fmt;
 447
 448	memset(f->reserved, 0, sizeof(f->reserved));
 449
 450	fmt = find_format_by_index(inst, f->index, f->type);
 451	if (!fmt)
 452		return -EINVAL;
 453
 454	f->pixelformat = fmt->pixfmt;
 455	f->flags = fmt->flags;
 456
 457	return 0;
 458}
 459
 460static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
 461{
 462	struct venus_inst *inst = to_inst(file);
 463	struct v4l2_captureparm *cap = &a->parm.capture;
 464	struct v4l2_fract *timeperframe = &cap->timeperframe;
 465	u64 us_per_frame, fps;
 466
 467	if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 468	    a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 469		return -EINVAL;
 470
 471	memset(cap->reserved, 0, sizeof(cap->reserved));
 472	if (!timeperframe->denominator)
 473		timeperframe->denominator = inst->timeperframe.denominator;
 474	if (!timeperframe->numerator)
 475		timeperframe->numerator = inst->timeperframe.numerator;
 476	cap->readbuffers = 0;
 477	cap->extendedmode = 0;
 478	cap->capability = V4L2_CAP_TIMEPERFRAME;
 479	us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
 480	do_div(us_per_frame, timeperframe->denominator);
 481
 482	us_per_frame = clamp(us_per_frame, 1, USEC_PER_SEC);
 483	fps = USEC_PER_SEC / (u32)us_per_frame;
 484	fps = min(VENUS_MAX_FPS, fps);
 485
 486	inst->fps = fps;
 487	inst->timeperframe = *timeperframe;
 488
 489	return 0;
 490}
 491
 492static int vdec_enum_framesizes(struct file *file, void *fh,
 493				struct v4l2_frmsizeenum *fsize)
 494{
 495	struct venus_inst *inst = to_inst(file);
 496	const struct venus_format *fmt;
 497
 498	fmt = find_format(inst, fsize->pixel_format,
 499			  V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 500	if (!fmt) {
 501		fmt = find_format(inst, fsize->pixel_format,
 502				  V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
 503		if (!fmt)
 504			return -EINVAL;
 505	}
 506
 507	if (fsize->index)
 508		return -EINVAL;
 509
 510	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
 511
 512	fsize->stepwise.min_width = frame_width_min(inst);
 513	fsize->stepwise.max_width = frame_width_max(inst);
 514	fsize->stepwise.step_width = frame_width_step(inst);
 515	fsize->stepwise.min_height = frame_height_min(inst);
 516	fsize->stepwise.max_height = frame_height_max(inst);
 517	fsize->stepwise.step_height = frame_height_step(inst);
 518
 519	return 0;
 520}
 521
 522static int vdec_subscribe_event(struct v4l2_fh *fh,
 523				const struct v4l2_event_subscription *sub)
 524{
 525	struct venus_inst *inst = container_of(fh, struct venus_inst, fh);
 526	int ret;
 527
 528	switch (sub->type) {
 529	case V4L2_EVENT_EOS:
 530		return v4l2_event_subscribe(fh, sub, 2, NULL);
 531	case V4L2_EVENT_SOURCE_CHANGE:
 532		ret = v4l2_src_change_event_subscribe(fh, sub);
 533		if (ret)
 534			return ret;
 535		inst->subscriptions |= V4L2_EVENT_SOURCE_CHANGE;
 536		return 0;
 537	case V4L2_EVENT_CTRL:
 538		return v4l2_ctrl_subscribe_event(fh, sub);
 539	default:
 540		return -EINVAL;
 541	}
 542}
 543
 544static int
 545vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
 546{
 547	struct venus_inst *inst = to_inst(file);
 548	struct vb2_queue *dst_vq;
 549	struct hfi_frame_data fdata = {0};
 550	int ret;
 551
 552	ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, cmd);
 553	if (ret)
 554		return ret;
 555
 556	mutex_lock(&inst->lock);
 557
 558	if (cmd->cmd == V4L2_DEC_CMD_STOP) {
 559		/*
 560		 * Implement V4L2_DEC_CMD_STOP by enqueue an empty buffer on
 561		 * decoder input to signal EOS.
 562		 */
 563		if (!(inst->streamon_out && inst->streamon_cap))
 564			goto unlock;
 565
 566		fdata.buffer_type = HFI_BUFFER_INPUT;
 567		fdata.flags |= HFI_BUFFERFLAG_EOS;
 568
 569		/* Send NULL EOS addr for only IRIS2 (SM8250),for firmware <= 1.0.87.
 570		 * SC7280 also reports "1.0.<hash>" parsed as 1.0.0; restricting to IRIS2
 571		 * avoids misapplying this quirk and breaking VP9 decode on SC7280.
 572		 */
 573
 574		if (IS_IRIS2(inst->core) && is_fw_rev_or_older(inst->core, 1, 0, 87))
 575			fdata.device_addr = 0;
 576		else
 577			fdata.device_addr = 0xdeadb000;
 578
 579		ret = hfi_session_process_buf(inst, &fdata);
 580
 581		if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING) {
 582			inst->codec_state = VENUS_DEC_STATE_DRAIN;
 583			inst->drain_active = true;
 584		}
 585	} else if (cmd->cmd == V4L2_DEC_CMD_START &&
 586		   inst->codec_state == VENUS_DEC_STATE_STOPPED) {
 587		dst_vq = v4l2_m2m_get_vq(inst->fh.m2m_ctx,
 588					 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 589		vb2_clear_last_buffer_dequeued(dst_vq);
 590
 591		inst->codec_state = VENUS_DEC_STATE_DECODING;
 592	}
 593
 594unlock:
 595	mutex_unlock(&inst->lock);
 596	return ret;
 597}
 598
 599static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
 600	.vidioc_querycap = vdec_querycap,
 601	.vidioc_enum_fmt_vid_cap = vdec_enum_fmt,
 602	.vidioc_enum_fmt_vid_out = vdec_enum_fmt,
 603	.vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
 604	.vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
 605	.vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
 606	.vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
 607	.vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
 608	.vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
 609	.vidioc_g_selection = vdec_g_selection,
 610	.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
 611	.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
 612	.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
 613	.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
 614	.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
 615	.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
 616	.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
 617	.vidioc_streamon = v4l2_m2m_ioctl_streamon,
 618	.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
 619	.vidioc_s_parm = vdec_s_parm,
 620	.vidioc_enum_framesizes = vdec_enum_framesizes,
 621	.vidioc_subscribe_event = vdec_subscribe_event,
 622	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 623	.vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
 624	.vidioc_decoder_cmd = vdec_decoder_cmd,
 625};
 626
 627static int vdec_pm_get(struct venus_inst *inst)
 628{
 629	struct venus_core *core = inst->core;
 630	struct device *dev = core->dev_dec;
 631	int ret;
 632
 633	mutex_lock(&core->pm_lock);
 634	ret = pm_runtime_resume_and_get(dev);
 635	mutex_unlock(&core->pm_lock);
 636
 637	return ret;
 638}
 639
 640static int vdec_pm_put(struct venus_inst *inst, bool autosuspend)
 641{
 642	struct venus_core *core = inst->core;
 643	struct device *dev = core->dev_dec;
 644	int ret;
 645
 646	mutex_lock(&core->pm_lock);
 647
 648	if (autosuspend)
 649		ret = pm_runtime_put_autosuspend(dev);
 650	else
 651		ret = pm_runtime_put_sync(dev);
 652
 653	mutex_unlock(&core->pm_lock);
 654
 655	return ret < 0 ? ret : 0;
 656}
 657
 658static int vdec_pm_get_put(struct venus_inst *inst)
 659{
 660	struct venus_core *core = inst->core;
 661	struct device *dev = core->dev_dec;
 662	int ret = 0;
 663
 664	mutex_lock(&core->pm_lock);
 665
 666	if (pm_runtime_suspended(dev)) {
 667		ret = pm_runtime_resume_and_get(dev);
 668		if (ret < 0)
 669			goto error;
 670
 671		ret = pm_runtime_put_autosuspend(dev);
 672	}
 673
 674error:
 675	mutex_unlock(&core->pm_lock);
 676
 677	return ret < 0 ? ret : 0;
 678}
 679
 680static void vdec_pm_touch(struct venus_inst *inst)
 681{
 682	pm_runtime_mark_last_busy(inst->core->dev_dec);
 683}
 684
 685static int vdec_set_properties(struct venus_inst *inst)
 686{
 687	struct vdec_controls *ctr = &inst->controls.dec;
 688	struct hfi_enable en = { .enable = 1 };
 689	u32 ptype, decode_order, conceal;
 690	int ret;
 691
 692	if (ctr->post_loop_deb_mode) {
 693		ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
 694		ret = hfi_session_set_property(inst, ptype, &en);
 695		if (ret)
 696			return ret;
 697	}
 698
 699	if (ctr->display_delay_enable && ctr->display_delay == 0) {
 700		ptype = HFI_PROPERTY_PARAM_VDEC_OUTPUT_ORDER;
 701		decode_order = HFI_OUTPUT_ORDER_DECODE;
 702		ret = hfi_session_set_property(inst, ptype, &decode_order);
 703		if (ret)
 704			return ret;
 705	}
 706
 707	/* Enabling sufficient sequence change support for VP9 */
 708	if (is_fw_rev_or_newer(inst->core, 5, 4, 51)) {
 709		ptype = HFI_PROPERTY_PARAM_VDEC_ENABLE_SUFFICIENT_SEQCHANGE_EVENT;
 710		ret = hfi_session_set_property(inst, ptype, &en);
 711		if (ret)
 712			return ret;
 713	}
 714
 715	ptype = HFI_PROPERTY_PARAM_VDEC_CONCEAL_COLOR;
 716	conceal = ctr->conceal_color & 0xffff;
 717	conceal |= ((ctr->conceal_color >> 16) & 0xffff) << 10;
 718	conceal |= ((ctr->conceal_color >> 32) & 0xffff) << 20;
 719
 720	ret = hfi_session_set_property(inst, ptype, &conceal);
 721	if (ret)
 722		return ret;
 723
 724	return 0;
 725}
 726
 727static int vdec_set_work_route(struct venus_inst *inst)
 728{
 729	u32 ptype = HFI_PROPERTY_PARAM_WORK_ROUTE;
 730	struct hfi_video_work_route wr;
 731
 732	if (!(IS_IRIS2(inst->core) || IS_IRIS2_1(inst->core)))
 733		return 0;
 734
 735	wr.video_work_route = inst->core->res->num_vpp_pipes;
 736
 737	return hfi_session_set_property(inst, ptype, &wr);
 738}
 739
 740#define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
 741#define is_10bit_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_10_BIT_BASE & \
 742				 HFI_COLOR_FORMAT_UBWC_BASE))
 743
 744
 745static int vdec_output_conf(struct venus_inst *inst)
 746{
 747	struct venus_core *core = inst->core;
 748	struct hfi_enable en = { .enable = 1 };
 749	struct hfi_buffer_requirements bufreq;
 750	u32 width = inst->width;
 751	u32 height = inst->height;
 752	u32 out_fmt, out2_fmt;
 753	bool ubwc = false;
 754	u32 ptype;
 755	int ret;
 756
 757	ret = venus_helper_set_work_mode(inst);
 758	if (ret)
 759		return ret;
 760
 761	if (core->res->hfi_version == HFI_VERSION_1XX) {
 762		ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
 763		ret = hfi_session_set_property(inst, ptype, &en);
 764		if (ret)
 765			return ret;
 766	}
 767
 768	/* Force searching UBWC formats for bigger then HD resolutions */
 769	if (width > 1920 && height > ALIGN(1080, 32))
 770		ubwc = true;
 771
 772	/* For Venus v4/v6 UBWC format is mandatory */
 773	if (IS_V4(core) || IS_V6(core))
 774		ubwc = true;
 775
 776	ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
 777					&out2_fmt, ubwc);
 778	if (ret)
 779		return ret;
 780
 781	inst->output_buf_size =
 782			venus_helper_get_framesz_raw(out_fmt, width, height);
 783	inst->output2_buf_size =
 784			venus_helper_get_framesz_raw(out2_fmt, width, height);
 785
 786	if (is_ubwc_fmt(out_fmt)) {
 787		inst->opb_buftype = HFI_BUFFER_OUTPUT2;
 788		inst->opb_fmt = out2_fmt;
 789		inst->dpb_buftype = HFI_BUFFER_OUTPUT;
 790		inst->dpb_fmt = out_fmt;
 791	} else if (is_ubwc_fmt(out2_fmt) || is_10bit_ubwc_fmt(out_fmt)) {
 792		inst->opb_buftype = HFI_BUFFER_OUTPUT;
 793		inst->opb_fmt = out_fmt;
 794		inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
 795		inst->dpb_fmt = out2_fmt;
 796	} else {
 797		inst->opb_buftype = HFI_BUFFER_OUTPUT;
 798		inst->opb_fmt = out_fmt;
 799		inst->dpb_buftype = 0;
 800		inst->dpb_fmt = 0;
 801	}
 802
 803	ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
 804					  inst->opb_buftype);
 805	if (ret)
 806		return ret;
 807
 808	ret = venus_helper_set_format_constraints(inst);
 809	if (ret)
 810		return ret;
 811
 812	if (inst->dpb_fmt) {
 813		ret = venus_helper_set_multistream(inst, false, true);
 814		if (ret)
 815			return ret;
 816
 817		ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
 818						  inst->dpb_buftype);
 819		if (ret)
 820			return ret;
 821
 822		ret = venus_helper_set_output_resolution(inst, width, height,
 823							 HFI_BUFFER_OUTPUT2);
 824		if (ret)
 825			return ret;
 826	}
 827
 828	if (IS_V3(core) || IS_V4(core) || IS_V6(core)) {
 829		ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
 830		if (ret)
 831			return ret;
 832
 833		if (bufreq.size > inst->output_buf_size)
 834			return -EINVAL;
 835
 836		if (inst->dpb_fmt) {
 837			ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT2,
 838						      &bufreq);
 839			if (ret)
 840				return ret;
 841
 842			if (bufreq.size > inst->output2_buf_size)
 843				return -EINVAL;
 844		}
 845
 846		if (inst->output2_buf_size) {
 847			ret = venus_helper_set_bufsize(inst,
 848						       inst->output2_buf_size,
 849						       HFI_BUFFER_OUTPUT2);
 850			if (ret)
 851				return ret;
 852		}
 853
 854		if (inst->output_buf_size) {
 855			ret = venus_helper_set_bufsize(inst,
 856						       inst->output_buf_size,
 857						       HFI_BUFFER_OUTPUT);
 858			if (ret)
 859				return ret;
 860		}
 861	}
 862
 863	ret = venus_helper_set_dyn_bufmode(inst);
 864	if (ret)
 865		return ret;
 866
 867	return 0;
 868}
 869
 870static int vdec_session_init(struct venus_inst *inst)
 871{
 872	int ret;
 873
 874	ret = venus_helper_session_init(inst);
 875	if (ret == -EALREADY)
 876		return 0;
 877	else if (ret)
 878		return ret;
 879
 880	ret = venus_helper_set_input_resolution(inst, frame_width_min(inst),
 881						frame_height_min(inst));
 882	if (ret)
 883		goto deinit;
 884
 885	return 0;
 886deinit:
 887	hfi_session_deinit(inst);
 888	return ret;
 889}
 890
 891static int vdec_num_buffers(struct venus_inst *inst, unsigned int *in_num,
 892			    unsigned int *out_num)
 893{
 894	enum hfi_version ver = inst->core->res->hfi_version;
 895	struct hfi_buffer_requirements bufreq;
 896	int ret;
 897
 898	*in_num = *out_num = 0;
 899
 900	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
 901	if (ret)
 902		return ret;
 903
 904	*in_num = hfi_bufreq_get_count_min(&bufreq, ver);
 905
 906	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
 907	if (ret)
 908		return ret;
 909
 910	*out_num = hfi_bufreq_get_count_min(&bufreq, ver);
 911
 912	return 0;
 913}
 914
 915static int vdec_queue_setup(struct vb2_queue *q,
 916			    unsigned int *num_buffers, unsigned int *num_planes,
 917			    unsigned int sizes[], struct device *alloc_devs[])
 918{
 919	struct venus_inst *inst = vb2_get_drv_priv(q);
 920	struct venus_core *core = inst->core;
 921	unsigned int in_num, out_num;
 922	int ret = 0;
 923
 924	if (*num_planes) {
 925		unsigned int output_buf_size = venus_helper_get_opb_size(inst);
 926
 927		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 928		    *num_planes != inst->fmt_out->num_planes)
 929			return -EINVAL;
 930
 931		if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 932		    *num_planes != inst->fmt_cap->num_planes)
 933			return -EINVAL;
 934
 935		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 936		    sizes[0] < inst->input_buf_size)
 937			return -EINVAL;
 938
 939		if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 940		    sizes[0] < output_buf_size)
 941			return -EINVAL;
 942
 943		return 0;
 944	}
 945
 946	if (test_bit(0, &core->sys_error)) {
 947		if (inst->nonblock)
 948			return -EAGAIN;
 949
 950		ret = wait_event_interruptible(core->sys_err_done,
 951					       !test_bit(0, &core->sys_error));
 952		if (ret)
 953			return ret;
 954	}
 955
 956	ret = vdec_pm_get(inst);
 957	if (ret)
 958		return ret;
 959
 960	ret = vdec_session_init(inst);
 961	if (ret)
 962		goto put_power;
 963
 964	ret = vdec_num_buffers(inst, &in_num, &out_num);
 965	if (ret)
 966		goto put_power;
 967
 968	ret = vdec_pm_put(inst, false);
 969	if (ret)
 970		return ret;
 971
 972	switch (q->type) {
 973	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
 974		*num_planes = inst->fmt_out->num_planes;
 975		sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
 976						    inst->out_width,
 977						    inst->out_height);
 978		sizes[0] = max(sizes[0], inst->input_buf_size);
 979		inst->input_buf_size = sizes[0];
 980		*num_buffers = max(*num_buffers, in_num);
 981		inst->num_input_bufs = *num_buffers;
 982		inst->num_output_bufs = out_num;
 983		break;
 984	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
 985		*num_planes = inst->fmt_cap->num_planes;
 986		sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
 987						    inst->width,
 988						    inst->height);
 989		inst->output_buf_size = sizes[0];
 990		*num_buffers = max(*num_buffers, out_num);
 991		inst->num_output_bufs = *num_buffers;
 992
 993		mutex_lock(&inst->lock);
 994		if (inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP)
 995			inst->codec_state = VENUS_DEC_STATE_STOPPED;
 996		mutex_unlock(&inst->lock);
 997		break;
 998	default:
 999		ret = -EINVAL;
1000		break;
1001	}
1002
1003	return ret;
1004
1005put_power:
1006	vdec_pm_put(inst, false);
1007	return ret;
1008}
1009
1010static int vdec_verify_conf(struct venus_inst *inst)
1011{
1012	enum hfi_version ver = inst->core->res->hfi_version;
1013	struct hfi_buffer_requirements bufreq;
1014	int ret;
1015
1016	if (!inst->num_input_bufs || !inst->num_output_bufs)
1017		return -EINVAL;
1018
1019	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
1020	if (ret)
1021		return ret;
1022
1023	if (inst->num_output_bufs < bufreq.count_actual ||
1024	    inst->num_output_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1025		return -EINVAL;
1026
1027	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
1028	if (ret)
1029		return ret;
1030
1031	if (inst->num_input_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1032		return -EINVAL;
1033
1034	return 0;
1035}
1036
1037static int vdec_start_capture(struct venus_inst *inst)
1038{
1039	int ret;
1040
1041	if (!inst->streamon_out)
1042		return 0;
1043
1044	if (inst->codec_state == VENUS_DEC_STATE_DECODING) {
1045		if (inst->reconfig)
1046			goto reconfigure;
1047
1048		venus_helper_queue_dpb_bufs(inst);
1049		venus_helper_process_initial_cap_bufs(inst);
1050		inst->streamon_cap = 1;
1051		return 0;
1052	}
1053
1054	if (inst->codec_state != VENUS_DEC_STATE_STOPPED)
1055		return 0;
1056
1057reconfigure:
1058	ret = vdec_output_conf(inst);
1059	if (ret)
1060		return ret;
1061
1062	ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1063					VB2_MAX_FRAME, VB2_MAX_FRAME);
1064	if (ret)
1065		return ret;
1066
1067	ret = venus_helper_intbufs_realloc(inst);
1068	if (ret)
1069		goto err;
1070
1071	venus_pm_load_scale(inst);
1072
1073	inst->next_buf_last = false;
1074
1075	ret = venus_helper_alloc_dpb_bufs(inst);
1076	if (ret)
1077		goto err;
1078
1079	ret = hfi_session_continue(inst);
1080	if (ret)
1081		goto free_dpb_bufs;
1082
1083	ret = venus_helper_queue_dpb_bufs(inst);
1084	if (ret)
1085		goto free_dpb_bufs;
1086
1087	ret = venus_helper_process_initial_cap_bufs(inst);
1088	if (ret)
1089		goto free_dpb_bufs;
1090
1091	inst->codec_state = VENUS_DEC_STATE_DECODING;
1092
1093	if (inst->drain_active)
1094		inst->codec_state = VENUS_DEC_STATE_DRAIN;
1095
1096	inst->streamon_cap = 1;
1097	inst->sequence_cap = 0;
1098	inst->reconfig = false;
1099	inst->drain_active = false;
1100
1101	return 0;
1102
1103free_dpb_bufs:
1104	venus_helper_free_dpb_bufs(inst);
1105err:
1106	return ret;
1107}
1108
1109static int vdec_start_output(struct venus_inst *inst)
1110{
1111	int ret;
1112
1113	if (inst->codec_state == VENUS_DEC_STATE_SEEK) {
1114		ret = venus_helper_process_initial_out_bufs(inst);
1115		if (ret)
1116			return ret;
1117
1118		if (inst->next_buf_last) {
1119			inst->codec_state = VENUS_DEC_STATE_DRC;
1120		} else {
1121			inst->codec_state = VENUS_DEC_STATE_DECODING;
1122
1123			if (inst->streamon_cap) {
1124				ret = venus_helper_queue_dpb_bufs(inst);
1125				if (ret)
1126					return ret;
1127			}
1128		}
1129		goto done;
1130	}
1131
1132	if (inst->codec_state == VENUS_DEC_STATE_INIT ||
1133	    inst->codec_state == VENUS_DEC_STATE_CAPTURE_SETUP) {
1134		ret = venus_helper_process_initial_out_bufs(inst);
1135		goto done;
1136	}
1137
1138	if (inst->codec_state != VENUS_DEC_STATE_DEINIT)
1139		return -EINVAL;
1140
1141	venus_helper_init_instance(inst);
1142	inst->sequence_out = 0;
1143	inst->reconfig = false;
1144	inst->next_buf_last = false;
1145
1146	ret = vdec_set_properties(inst);
1147	if (ret)
1148		return ret;
1149
1150	ret = vdec_set_work_route(inst);
1151	if (ret)
1152		return ret;
1153
1154	ret = vdec_output_conf(inst);
1155	if (ret)
1156		return ret;
1157
1158	ret = vdec_verify_conf(inst);
1159	if (ret)
1160		return ret;
1161
1162	ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1163					VB2_MAX_FRAME, VB2_MAX_FRAME);
1164	if (ret)
1165		return ret;
1166
1167	ret = venus_helper_vb2_start_streaming(inst);
1168	if (ret)
1169		return ret;
1170
1171	ret = venus_helper_process_initial_out_bufs(inst);
1172	if (ret)
1173		return ret;
1174
1175	inst->codec_state = VENUS_DEC_STATE_INIT;
1176
1177done:
1178	inst->streamon_out = 1;
1179	return ret;
1180}
1181
1182static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
1183{
1184	struct venus_inst *inst = vb2_get_drv_priv(q);
1185	int ret;
1186
1187	mutex_lock(&inst->lock);
1188
1189	if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1190		ret = vdec_start_capture(inst);
1191	} else {
1192		ret = vdec_pm_get(inst);
1193		if (ret)
1194			goto error;
1195
1196		ret = venus_pm_acquire_core(inst);
1197		if (ret)
1198			goto put_power;
1199
1200		ret = vdec_pm_put(inst, true);
1201		if (ret)
1202			goto error;
1203
1204		ret = vdec_start_output(inst);
1205	}
1206
1207	if (ret)
1208		goto error;
1209
1210	mutex_unlock(&inst->lock);
1211	return 0;
1212
1213put_power:
1214	vdec_pm_put(inst, false);
1215error:
1216	venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1217	mutex_unlock(&inst->lock);
1218	return ret;
1219}
1220
1221static void vdec_cancel_dst_buffers(struct venus_inst *inst)
1222{
1223	struct vb2_v4l2_buffer *buf;
1224
1225	while ((buf = v4l2_m2m_dst_buf_remove(inst->m2m_ctx)))
1226		v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1227}
1228
1229static int vdec_stop_capture(struct venus_inst *inst)
1230{
1231	int ret = 0;
1232
1233	switch (inst->codec_state) {
1234	case VENUS_DEC_STATE_DECODING:
1235		ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1236		fallthrough;
1237	case VENUS_DEC_STATE_DRAIN:
1238		inst->codec_state = VENUS_DEC_STATE_STOPPED;
1239		inst->drain_active = false;
1240		fallthrough;
1241	case VENUS_DEC_STATE_SEEK:
1242		vdec_cancel_dst_buffers(inst);
1243		break;
1244	case VENUS_DEC_STATE_DRC:
1245		ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, true);
1246		inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1247		venus_helper_free_dpb_bufs(inst);
1248		break;
1249	default:
1250		break;
1251	}
1252
1253	return ret;
1254}
1255
1256static int vdec_stop_output(struct venus_inst *inst)
1257{
1258	int ret = 0;
1259
1260	switch (inst->codec_state) {
1261	case VENUS_DEC_STATE_DECODING:
1262	case VENUS_DEC_STATE_DRAIN:
1263	case VENUS_DEC_STATE_STOPPED:
1264	case VENUS_DEC_STATE_DRC:
1265		ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1266		inst->codec_state = VENUS_DEC_STATE_SEEK;
1267		break;
1268	case VENUS_DEC_STATE_INIT:
1269	case VENUS_DEC_STATE_CAPTURE_SETUP:
1270		ret = hfi_session_flush(inst, HFI_FLUSH_ALL, true);
1271		break;
1272	default:
1273		break;
1274	}
1275
1276	return ret;
1277}
1278
1279static void vdec_stop_streaming(struct vb2_queue *q)
1280{
1281	struct venus_inst *inst = vb2_get_drv_priv(q);
1282	int ret = -EINVAL;
1283
1284	vdec_pm_get_put(inst);
1285
1286	mutex_lock(&inst->lock);
1287
1288	if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1289		ret = vdec_stop_capture(inst);
1290	else
1291		ret = vdec_stop_output(inst);
1292
1293	venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR);
1294
1295	inst->session_error = 0;
1296
1297	if (ret)
1298		goto unlock;
1299
1300	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1301		inst->streamon_out = 0;
1302	else
1303		inst->streamon_cap = 0;
1304
1305unlock:
1306	mutex_unlock(&inst->lock);
1307}
1308
1309static void vdec_session_release(struct venus_inst *inst)
1310{
1311	struct venus_core *core = inst->core;
1312	int ret, abort = 0;
1313
1314	vdec_pm_get(inst);
1315
1316	mutex_lock(&inst->lock);
1317	inst->codec_state = VENUS_DEC_STATE_DEINIT;
1318
1319	ret = hfi_session_stop(inst);
1320	abort = (ret && ret != -EINVAL) ? 1 : 0;
1321	ret = hfi_session_unload_res(inst);
1322	abort = (ret && ret != -EINVAL) ? 1 : 0;
1323	ret = venus_helper_unregister_bufs(inst);
1324	abort = (ret && ret != -EINVAL) ? 1 : 0;
1325	ret = venus_helper_intbufs_free(inst);
1326	abort = (ret && ret != -EINVAL) ? 1 : 0;
1327	ret = hfi_session_deinit(inst);
1328	abort = (ret && ret != -EINVAL) ? 1 : 0;
1329
1330	if (inst->session_error || test_bit(0, &core->sys_error))
1331		abort = 1;
1332
1333	if (abort)
1334		hfi_session_abort(inst);
1335
1336	venus_helper_free_dpb_bufs(inst);
1337	venus_pm_load_scale(inst);
1338	INIT_LIST_HEAD(&inst->registeredbufs);
1339	mutex_unlock(&inst->lock);
1340
1341	venus_pm_release_core(inst);
1342	vdec_pm_put(inst, false);
1343}
1344
1345static int vdec_buf_init(struct vb2_buffer *vb)
1346{
1347	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1348
1349	inst->buf_count++;
1350
1351	return venus_helper_vb2_buf_init(vb);
1352}
1353
1354static void vdec_buf_cleanup(struct vb2_buffer *vb)
1355{
1356	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1357	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1358	struct venus_buffer *buf = to_venus_buffer(vbuf);
1359
1360	mutex_lock(&inst->lock);
1361	if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1362		if (!list_empty(&inst->registeredbufs))
1363			list_del_init(&buf->reg_list);
1364	mutex_unlock(&inst->lock);
1365
1366	inst->buf_count--;
1367	if (!inst->buf_count)
1368		vdec_session_release(inst);
1369}
1370
1371static void vdec_vb2_buf_queue(struct vb2_buffer *vb)
1372{
1373	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1374	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1375	static const struct v4l2_event eos = { .type = V4L2_EVENT_EOS };
1376
1377	vdec_pm_get_put(inst);
1378
1379	mutex_lock(&inst->lock);
1380
1381	if (inst->next_buf_last && V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type) &&
1382	    inst->codec_state == VENUS_DEC_STATE_DRC) {
1383		vbuf->flags |= V4L2_BUF_FLAG_LAST;
1384		vbuf->sequence = inst->sequence_cap++;
1385		vbuf->field = V4L2_FIELD_NONE;
1386		vb2_set_plane_payload(vb, 0, 0);
1387		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1388		v4l2_event_queue_fh(&inst->fh, &eos);
1389		inst->next_buf_last = false;
1390		mutex_unlock(&inst->lock);
1391		return;
1392	}
1393
1394	venus_helper_vb2_buf_queue(vb);
1395	mutex_unlock(&inst->lock);
1396}
1397
1398static const struct vb2_ops vdec_vb2_ops = {
1399	.queue_setup = vdec_queue_setup,
1400	.buf_init = vdec_buf_init,
1401	.buf_cleanup = vdec_buf_cleanup,
1402	.buf_prepare = venus_helper_vb2_buf_prepare,
1403	.start_streaming = vdec_start_streaming,
1404	.stop_streaming = vdec_stop_streaming,
1405	.buf_queue = vdec_vb2_buf_queue,
1406};
1407
1408static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
1409			  u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1410			  u32 hfi_flags, u64 timestamp_us)
1411{
1412	enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
1413	struct vb2_v4l2_buffer *vbuf;
1414	struct vb2_buffer *vb;
1415	unsigned int type;
1416
1417	vdec_pm_touch(inst);
1418
1419	if (buf_type == HFI_BUFFER_INPUT)
1420		type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1421	else
1422		type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1423
1424	vbuf = venus_helper_find_buf(inst, type, tag);
1425	if (!vbuf) {
1426		venus_helper_change_dpb_owner(inst, vbuf, type, buf_type, tag);
1427		return;
1428	}
1429
1430	vbuf->flags = flags;
1431	vbuf->field = V4L2_FIELD_NONE;
1432	vb = &vbuf->vb2_buf;
1433
1434	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1435		vb2_set_plane_payload(vb, 0, bytesused);
1436		vb->planes[0].data_offset = data_offset;
1437		vb->timestamp = timestamp_us * NSEC_PER_USEC;
1438		vbuf->sequence = inst->sequence_cap++;
1439
1440		if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
1441			const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
1442
1443			v4l2_event_queue_fh(&inst->fh, &ev);
1444
1445			if (inst->codec_state == VENUS_DEC_STATE_DRAIN) {
1446				inst->drain_active = false;
1447				inst->codec_state = VENUS_DEC_STATE_STOPPED;
1448			}
1449		} else {
1450			if (!bytesused)
1451				state = VB2_BUF_STATE_ERROR;
1452		}
1453	} else {
1454		vbuf->sequence = inst->sequence_out++;
1455	}
1456
1457	venus_helper_get_ts_metadata(inst, timestamp_us, vbuf);
1458
1459	if (hfi_flags & HFI_BUFFERFLAG_READONLY)
1460		venus_helper_acquire_buf_ref(vbuf);
1461
1462	if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
1463		state = VB2_BUF_STATE_ERROR;
1464
1465	if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME) {
1466		state = VB2_BUF_STATE_ERROR;
1467		vb2_set_plane_payload(vb, 0, 0);
1468		vb->timestamp = 0;
1469	}
1470
1471	v4l2_m2m_buf_done(vbuf, state);
1472}
1473
1474static void vdec_event_change(struct venus_inst *inst,
1475			      struct hfi_event_data *ev_data, bool sufficient)
1476{
1477	static const struct v4l2_event ev = {
1478		.type = V4L2_EVENT_SOURCE_CHANGE,
1479		.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION };
1480	struct device *dev = inst->core->dev_dec;
1481	struct v4l2_format format = {};
1482
1483	mutex_lock(&inst->lock);
1484
1485	format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1486	format.fmt.pix_mp.pixelformat = inst->fmt_cap->pixfmt;
1487	format.fmt.pix_mp.width = ev_data->width;
1488	format.fmt.pix_mp.height = ev_data->height;
1489
1490	vdec_try_fmt_common(inst, &format);
1491
1492	inst->width = format.fmt.pix_mp.width;
1493	inst->height = format.fmt.pix_mp.height;
1494	/*
1495	 * Some versions of the firmware do not report crop information for
1496	 * all codecs. For these cases, set the crop to the coded resolution.
1497	 */
1498	if (ev_data->input_crop.width > 0 && ev_data->input_crop.height > 0) {
1499		inst->crop.left = ev_data->input_crop.left;
1500		inst->crop.top = ev_data->input_crop.top;
1501		inst->crop.width = ev_data->input_crop.width;
1502		inst->crop.height = ev_data->input_crop.height;
1503	} else {
1504		inst->crop.left = 0;
1505		inst->crop.top = 0;
1506		inst->crop.width = ev_data->width;
1507		inst->crop.height = ev_data->height;
1508	}
1509
1510	inst->fw_min_cnt = ev_data->buf_count;
1511	/* overwriting this to 11 for vp9 due to fw bug */
1512	if (inst->hfi_codec == HFI_VIDEO_CODEC_VP9)
1513		inst->fw_min_cnt = 11;
1514
1515	inst->out_width = ev_data->width;
1516	inst->out_height = ev_data->height;
1517
1518	if (inst->bit_depth != ev_data->bit_depth) {
1519		inst->bit_depth = ev_data->bit_depth;
1520		if (inst->bit_depth == VIDC_BITDEPTH_10)
1521			inst->fmt_cap = &vdec_formats[VENUS_FMT_P010];
1522		else
1523			inst->fmt_cap = &vdec_formats[VENUS_FMT_NV12];
1524	}
1525
1526	if (inst->pic_struct != ev_data->pic_struct)
1527		inst->pic_struct = ev_data->pic_struct;
1528
1529	dev_dbg(dev, VDBGM "event %s sufficient resources (%ux%u)\n",
1530		sufficient ? "" : "not", ev_data->width, ev_data->height);
1531
1532	switch (inst->codec_state) {
1533	case VENUS_DEC_STATE_INIT:
1534		inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
1535		break;
1536	case VENUS_DEC_STATE_DECODING:
1537	case VENUS_DEC_STATE_DRAIN:
1538		inst->codec_state = VENUS_DEC_STATE_DRC;
1539		break;
1540	default:
1541		break;
1542	}
1543
1544	/*
1545	 * The assumption is that the firmware have to return the last buffer
1546	 * before this event is received in the v4l2 driver. Also the firmware
1547	 * itself doesn't mark the last decoder output buffer with HFI EOS flag.
1548	 */
1549
1550	if (inst->codec_state == VENUS_DEC_STATE_DRC) {
1551		int ret;
1552
1553		inst->next_buf_last = true;
1554
1555		ret = hfi_session_flush(inst, HFI_FLUSH_OUTPUT, false);
1556		if (ret)
1557			dev_dbg(dev, VDBGH "flush output error %d\n", ret);
1558	}
1559
1560	inst->next_buf_last = true;
1561	inst->reconfig = true;
1562	v4l2_event_queue_fh(&inst->fh, &ev);
1563	wake_up(&inst->reconf_wait);
1564
1565	mutex_unlock(&inst->lock);
1566}
1567
1568static void vdec_event_notify(struct venus_inst *inst, u32 event,
1569			      struct hfi_event_data *data)
1570{
1571	struct venus_core *core = inst->core;
1572	struct device *dev = core->dev_dec;
1573
1574	vdec_pm_touch(inst);
1575
1576	switch (event) {
1577	case EVT_SESSION_ERROR:
1578		inst->session_error = true;
1579		venus_helper_vb2_queue_error(inst);
1580		dev_err(dev, "dec: event session error %x\n", inst->error);
1581		break;
1582	case EVT_SYS_EVENT_CHANGE:
1583		switch (data->event_type) {
1584		case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
1585			vdec_event_change(inst, data, true);
1586			break;
1587		case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
1588			vdec_event_change(inst, data, false);
1589			break;
1590		case HFI_EVENT_RELEASE_BUFFER_REFERENCE:
1591			venus_helper_release_buf_ref(inst, data->tag);
1592			break;
1593		default:
1594			break;
1595		}
1596		break;
1597	default:
1598		break;
1599	}
1600}
1601
1602static void vdec_flush_done(struct venus_inst *inst)
1603{
1604	dev_dbg(inst->core->dev_dec, VDBGH "flush done\n");
1605}
1606
1607static const struct hfi_inst_ops vdec_hfi_ops = {
1608	.buf_done = vdec_buf_done,
1609	.event_notify = vdec_event_notify,
1610	.flush_done = vdec_flush_done,
1611};
1612
1613static void vdec_inst_init(struct venus_inst *inst)
1614{
1615	inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1616	inst->fmt_out = &vdec_formats[VENUS_FMT_H264];
1617	inst->fmt_cap = &vdec_formats[VENUS_FMT_NV12];
1618	inst->width = frame_width_min(inst);
1619	inst->height = ALIGN(frame_height_min(inst), 32);
1620	inst->crop.left = 0;
1621	inst->crop.top = 0;
1622	inst->crop.width = inst->width;
1623	inst->crop.height = inst->height;
1624	inst->fw_min_cnt = 8;
1625	inst->out_width = frame_width_min(inst);
1626	inst->out_height = frame_height_min(inst);
1627	inst->fps = 30;
1628	inst->timeperframe.numerator = 1;
1629	inst->timeperframe.denominator = 30;
1630	inst->opb_buftype = HFI_BUFFER_OUTPUT;
1631}
1632
1633static void vdec_m2m_device_run(void *priv)
1634{
1635}
1636
1637static const struct v4l2_m2m_ops vdec_m2m_ops = {
1638	.device_run = vdec_m2m_device_run,
1639	.job_abort = venus_helper_m2m_job_abort,
1640};
1641
1642static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1643			  struct vb2_queue *dst_vq)
1644{
1645	struct venus_inst *inst = priv;
1646	int ret;
1647
1648	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1649	src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1650	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1651	src_vq->ops = &vdec_vb2_ops;
1652	src_vq->mem_ops = &vb2_dma_contig_memops;
1653	src_vq->drv_priv = inst;
1654	src_vq->buf_struct_size = sizeof(struct venus_buffer);
1655	src_vq->allow_zero_bytesused = 1;
1656	src_vq->min_queued_buffers = 0;
1657	src_vq->dev = inst->core->dev;
1658	src_vq->lock = &inst->ctx_q_lock;
1659	ret = vb2_queue_init(src_vq);
1660	if (ret)
1661		return ret;
1662
1663	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1664	dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
1665	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1666	dst_vq->ops = &vdec_vb2_ops;
1667	dst_vq->mem_ops = &vb2_dma_contig_memops;
1668	dst_vq->drv_priv = inst;
1669	dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1670	dst_vq->allow_zero_bytesused = 1;
1671	dst_vq->min_queued_buffers = 0;
1672	dst_vq->dev = inst->core->dev;
1673	dst_vq->lock = &inst->ctx_q_lock;
1674	return vb2_queue_init(dst_vq);
1675}
1676
1677static int vdec_open(struct file *file)
1678{
1679	struct venus_core *core = video_drvdata(file);
1680	struct venus_inst *inst;
1681	int ret;
1682
1683	inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1684	if (!inst)
1685		return -ENOMEM;
1686
1687	INIT_LIST_HEAD(&inst->dpbbufs);
1688	INIT_LIST_HEAD(&inst->registeredbufs);
1689	INIT_LIST_HEAD(&inst->internalbufs);
1690	INIT_LIST_HEAD(&inst->list);
1691	mutex_init(&inst->lock);
1692	mutex_init(&inst->ctx_q_lock);
1693
1694	inst->core = core;
1695	inst->session_type = VIDC_SESSION_TYPE_DEC;
1696	inst->num_output_bufs = 1;
1697	inst->codec_state = VENUS_DEC_STATE_DEINIT;
1698	inst->buf_count = 0;
1699	inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1700	inst->core_acquired = false;
1701	inst->bit_depth = VIDC_BITDEPTH_8;
1702	inst->pic_struct = HFI_INTERLACE_FRAME_PROGRESSIVE;
1703	init_waitqueue_head(&inst->reconf_wait);
1704	inst->nonblock = file->f_flags & O_NONBLOCK;
1705
1706	venus_helper_init_instance(inst);
1707
1708	ret = vdec_ctrl_init(inst);
1709	if (ret)
1710		goto err_free;
1711
1712	vdec_inst_init(inst);
1713
1714	ida_init(&inst->dpb_ids);
1715
1716	/*
1717	 * create m2m device for every instance, the m2m context scheduling
1718	 * is made by firmware side so we do not need to care about.
1719	 */
1720	inst->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops);
1721	if (IS_ERR(inst->m2m_dev)) {
1722		ret = PTR_ERR(inst->m2m_dev);
1723		goto err_ctrl_deinit;
1724	}
1725
1726	inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1727	if (IS_ERR(inst->m2m_ctx)) {
1728		ret = PTR_ERR(inst->m2m_ctx);
1729		goto err_m2m_dev_release;
1730	}
1731
1732	ret = hfi_session_create(inst, &vdec_hfi_ops);
1733	if (ret)
1734		goto err_m2m_ctx_release;
1735
1736	v4l2_fh_init(&inst->fh, core->vdev_dec);
1737
1738	inst->fh.ctrl_handler = &inst->ctrl_handler;
1739	v4l2_fh_add(&inst->fh, file);
1740	inst->fh.m2m_ctx = inst->m2m_ctx;
1741
1742	return 0;
1743
1744err_m2m_ctx_release:
1745	v4l2_m2m_ctx_release(inst->m2m_ctx);
1746err_m2m_dev_release:
1747	v4l2_m2m_release(inst->m2m_dev);
1748err_ctrl_deinit:
1749	v4l2_ctrl_handler_free(&inst->ctrl_handler);
1750err_free:
1751	kfree(inst);
1752	return ret;
1753}
1754
1755static int vdec_close(struct file *file)
1756{
1757	struct venus_inst *inst = to_inst(file);
1758
1759	vdec_pm_get(inst);
1760	cancel_work_sync(&inst->delayed_process_work);
1761	venus_close_common(inst, file);
1762	ida_destroy(&inst->dpb_ids);
1763	vdec_pm_put(inst, false);
1764
1765	kfree(inst);
1766	return 0;
1767}
1768
1769static const struct v4l2_file_operations vdec_fops = {
1770	.owner = THIS_MODULE,
1771	.open = vdec_open,
1772	.release = vdec_close,
1773	.unlocked_ioctl = video_ioctl2,
1774	.poll = v4l2_m2m_fop_poll,
1775	.mmap = v4l2_m2m_fop_mmap,
1776};
1777
1778static int vdec_probe(struct platform_device *pdev)
1779{
1780	struct device *dev = &pdev->dev;
1781	struct video_device *vdev;
1782	struct venus_core *core;
1783	int ret;
1784
1785	core = dev_get_drvdata(dev->parent);
1786	if (!core)
1787		return -EINVAL;
1788
1789	platform_set_drvdata(pdev, core);
1790
1791	if (core->pm_ops->vdec_get) {
1792		ret = core->pm_ops->vdec_get(dev);
1793		if (ret)
1794			return ret;
1795	}
1796
1797	vdev = video_device_alloc();
1798	if (!vdev)
1799		return -ENOMEM;
1800
1801	strscpy(vdev->name, "qcom-venus-decoder", sizeof(vdev->name));
1802	vdev->release = video_device_release;
1803	vdev->fops = &vdec_fops;
1804	vdev->ioctl_ops = &vdec_ioctl_ops;
1805	vdev->vfl_dir = VFL_DIR_M2M;
1806	vdev->v4l2_dev = &core->v4l2_dev;
1807	vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1808
1809	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1810	if (ret)
1811		goto err_vdev_release;
1812
1813	core->vdev_dec = vdev;
1814	core->dev_dec = dev;
1815
1816	video_set_drvdata(vdev, core);
1817	pm_runtime_set_autosuspend_delay(dev, 2000);
1818	pm_runtime_use_autosuspend(dev);
1819	pm_runtime_enable(dev);
1820
1821	return 0;
1822
1823err_vdev_release:
1824	video_device_release(vdev);
1825	return ret;
1826}
1827
1828static void vdec_remove(struct platform_device *pdev)
1829{
1830	struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1831
1832	video_unregister_device(core->vdev_dec);
1833	pm_runtime_disable(core->dev_dec);
1834
1835	if (core->pm_ops->vdec_put)
1836		core->pm_ops->vdec_put(core->dev_dec);
1837}
1838
1839static __maybe_unused int vdec_runtime_suspend(struct device *dev)
1840{
1841	struct venus_core *core = dev_get_drvdata(dev);
1842	const struct venus_pm_ops *pm_ops = core->pm_ops;
1843	int ret = 0;
1844
1845	if (pm_ops->vdec_power)
1846		ret = pm_ops->vdec_power(dev, POWER_OFF);
1847
1848	return ret;
1849}
1850
1851static __maybe_unused int vdec_runtime_resume(struct device *dev)
1852{
1853	struct venus_core *core = dev_get_drvdata(dev);
1854	const struct venus_pm_ops *pm_ops = core->pm_ops;
1855	int ret = 0;
1856
1857	if (pm_ops->vdec_power)
1858		ret = pm_ops->vdec_power(dev, POWER_ON);
1859
1860	return ret;
1861}
1862
1863static const struct dev_pm_ops vdec_pm_ops = {
1864	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1865				pm_runtime_force_resume)
1866	SET_RUNTIME_PM_OPS(vdec_runtime_suspend, vdec_runtime_resume, NULL)
1867};
1868
1869static const struct of_device_id vdec_dt_match[] = {
1870	{ .compatible = "venus-decoder" },
1871	{ }
1872};
1873MODULE_DEVICE_TABLE(of, vdec_dt_match);
1874
1875static struct platform_driver qcom_venus_dec_driver = {
1876	.probe = vdec_probe,
1877	.remove = vdec_remove,
1878	.driver = {
1879		.name = "qcom-venus-decoder",
1880		.of_match_table = vdec_dt_match,
1881		.pm = &vdec_pm_ops,
1882	},
1883};
1884module_platform_driver(qcom_venus_dec_driver);
1885
1886MODULE_DESCRIPTION("Qualcomm Venus video decoder driver");
1887MODULE_LICENSE("GPL v2");