linux-kernel - Re: [PATCH v4,07/11] media: mediatek: vcodec: separate struct 'mtk_vcodec

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Message-ID: <ec27c83f336d4688a12dcf714c388518c12b44dc.camel@mediatek.com>
Date:   Tue, 4 Jul 2023 11:11:49 +0000
From:   Yunfei Dong (董云飞) 
        <Yunfei.Dong@...iatek.com>
To:     "nhebert@...omium.org" <nhebert@...omium.org>,
        "benjamin.gaignard@...labora.com" <benjamin.gaignard@...labora.com>,
        "nfraprado@...labora.com" <nfraprado@...labora.com>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "nicolas.dufresne@...labora.com" <nicolas.dufresne@...labora.com>,
        "hverkuil-cisco@...all.nl" <hverkuil-cisco@...all.nl>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "frkoenig@...omium.org" <frkoenig@...omium.org>,
        "stevecho@...omium.org" <stevecho@...omium.org>,
        "wenst@...omium.org" <wenst@...omium.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "daniel@...ll.ch" <daniel@...ll.ch>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        "hsinyi@...omium.org" <hsinyi@...omium.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4,07/11] media: mediatek: vcodec: separate struct
 'mtk_vcodec_ctx'

Hi Nicolas,

Thanks for your suggestion.
On Mon, 2023-07-03 at 16:02 -0400, Nicolas Dufresne wrote:
>  	 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
>  Le lundi 26 juin 2023 à 11:53 +0800, Yunfei Dong a écrit :
> > Adding different context struct for encoder and decoder and
> removing
> > struct 'mtk_vcodec_ctx'.
> > 
> > Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>
> > ---
> >  .../mediatek/vcodec/mtk_vcodec_com_drv.h      |  76 +++++
> >  .../mediatek/vcodec/mtk_vcodec_dbgfs.c        |   6 +-
> >  .../mediatek/vcodec/mtk_vcodec_dbgfs.h        |  10 +-
> >  .../platform/mediatek/vcodec/mtk_vcodec_dec.c |  60 ++--
> >  .../platform/mediatek/vcodec/mtk_vcodec_dec.h |  10 +-
> >  .../mediatek/vcodec/mtk_vcodec_dec_drv.c      |  10 +-
> >  .../mediatek/vcodec/mtk_vcodec_dec_drv.h      | 158 ++++++++++
> >  .../mediatek/vcodec/mtk_vcodec_dec_hw.c       |   4 +-
> >  .../mediatek/vcodec/mtk_vcodec_dec_hw.h       |   2 +-
> >  .../mediatek/vcodec/mtk_vcodec_dec_pm.c       |   8 +-
> >  .../mediatek/vcodec/mtk_vcodec_dec_pm.h       |   4 +-
> >  .../mediatek/vcodec/mtk_vcodec_dec_stateful.c |  28 +-
> >  .../vcodec/mtk_vcodec_dec_stateless.c         |  22 +-
> >  .../platform/mediatek/vcodec/mtk_vcodec_drv.h | 269 +-------------
> ----
> >  .../platform/mediatek/vcodec/mtk_vcodec_enc.c |  78 ++---
> >  .../platform/mediatek/vcodec/mtk_vcodec_enc.h |  12 +-
> >  .../mediatek/vcodec/mtk_vcodec_enc_drv.c      |  10 +-
> >  .../mediatek/vcodec/mtk_vcodec_enc_drv.h      | 158 ++++++++++
> >  .../mediatek/vcodec/mtk_vcodec_fw_vpu.c       |  35 ++-
> >  .../mediatek/vcodec/mtk_vcodec_intr.c         |  33 ++-
> >  .../mediatek/vcodec/mtk_vcodec_intr.h         |   3 +-
> >  .../mediatek/vcodec/mtk_vcodec_util.c         |  12 +-
> >  .../mediatek/vcodec/mtk_vcodec_util.h         |   8 +-
> >  .../vcodec/vdec/vdec_av1_req_lat_if.c         |  22 +-
> >  .../mediatek/vcodec/vdec/vdec_h264_if.c       |   6 +-
> >  .../vcodec/vdec/vdec_h264_req_common.c        |   4 +-
> >  .../vcodec/vdec/vdec_h264_req_common.h        |   4 +-
> >  .../mediatek/vcodec/vdec/vdec_h264_req_if.c   |   8 +-
> >  .../vcodec/vdec/vdec_h264_req_multi_if.c      |  10 +-
> >  .../vcodec/vdec/vdec_hevc_req_multi_if.c      |  16 +-
> >  .../mediatek/vcodec/vdec/vdec_vp8_if.c        |   4 +-
> >  .../mediatek/vcodec/vdec/vdec_vp8_req_if.c    |  10 +-
> >  .../mediatek/vcodec/vdec/vdec_vp9_if.c        |   8 +-
> >  .../vcodec/vdec/vdec_vp9_req_lat_if.c         |  18 +-
> >  .../platform/mediatek/vcodec/vdec_drv_base.h  |   2 +-
> >  .../platform/mediatek/vcodec/vdec_drv_if.c    |   8 +-
> >  .../platform/mediatek/vcodec/vdec_drv_if.h    |   8 +-
> >  .../platform/mediatek/vcodec/vdec_msg_queue.c |   8 +-
> >  .../platform/mediatek/vcodec/vdec_msg_queue.h |  10 +-
> >  .../platform/mediatek/vcodec/vdec_vpu_if.h    |   4 +-
> >  .../mediatek/vcodec/venc/venc_h264_if.c       |  12 +-
> >  .../mediatek/vcodec/venc/venc_vp8_if.c        |   8 +-
> >  .../platform/mediatek/vcodec/venc_drv_base.h  |   2 +-
> >  .../platform/mediatek/vcodec/venc_drv_if.c    |  14 +-
> >  .../platform/mediatek/vcodec/venc_drv_if.h    |   8 +-
> >  .../platform/mediatek/vcodec/venc_vpu_if.h    |   2 +-
> >  46 files changed, 698 insertions(+), 514 deletions(-)
> >  create mode 100644
> drivers/media/platform/mediatek/vcodec/mtk_vcodec_com_drv.h
> >  create mode 100644
> drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.h
> >  create mode 100644
> drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.h
> > 
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_com_drv.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_com_drv.h
> > new file mode 100644
> > index 000000000000..3b6e1faf60ce
> > --- /dev/null
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_com_drv.h
> > @@ -0,0 +1,76 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Copyright (c) 2023 MediaTek Inc.
> > + * Author: Yunfei Dong <yunfei.dong@...iatek.com>
> > + */
> > +
> > +#ifndef _MTK_VCODEC_COM_DRV_H_
> > +#define _MTK_VCODEC_COM_DRV_H_
> > +
> > +#include <linux/platform_device.h>
> > +#include <linux/videodev2.h>
> > +#include <media/v4l2-ctrls.h>
> > +#include <media/v4l2-device.h>
> > +#include <media/v4l2-ioctl.h>
> > +#include <media/v4l2-mem2mem.h>
> > +#include <media/videobuf2-core.h>
> > +
> > +#define MTK_VCODEC_MAX_PLANES3
> > +
> > +/**
> > + * enum mtk_instance_state - The state of an MTK Vcodec instance.
> > + * @MTK_STATE_FREE: default state when instance is created
> > + * @MTK_STATE_INIT: vcodec instance is initialized
> > + * @MTK_STATE_HEADER: vdec had sps/pps header parsed or venc
> > + *had sps/pps header encoded
> > + * @MTK_STATE_FLUSH: vdec is flushing. Only used by decoder
> > + * @MTK_STATE_ABORT: vcodec should be aborted
> > + */
> > +enum mtk_instance_state {
> > +MTK_STATE_FREE = 0,
> > +MTK_STATE_INIT = 1,
> > +MTK_STATE_HEADER = 2,
> > +MTK_STATE_FLUSH = 3,
> > +MTK_STATE_ABORT = 4,
> > +};
> > +
> > +enum mtk_fmt_type {
> > +MTK_FMT_DEC = 0,
> > +MTK_FMT_ENC = 1,
> > +MTK_FMT_FRAME = 2,
> > +};
> > +
> > +/*
> > + * struct mtk_video_fmt - Structure used to store information
> about pixelformats
> > + */
> > +struct mtk_video_fmt {
> > +u32fourcc;
> > +enum mtk_fmt_typetype;
> > +u32num_planes;
> > +u32flags;
> > +struct v4l2_frmsize_stepwise frmsize;
> > +};
> > +
> > +/*
> > + * struct mtk_q_data - Structure used to store information about
> queue
> > + */
> > +struct mtk_q_data {
> > +unsigned intvisible_width;
> > +unsigned intvisible_height;
> > +unsigned intcoded_width;
> > +unsigned intcoded_height;
> > +enum v4l2_fieldfield;
> > +unsigned intbytesperline[MTK_VCODEC_MAX_PLANES];
> > +unsigned intsizeimage[MTK_VCODEC_MAX_PLANES];
> > +const struct mtk_video_fmt*fmt;
> > +};
> > +
> > +/*
> > + * enum mtk_instance_type - The type of an MTK Vcodec instance.
> > + */
> > +enum mtk_instance_type {
> > +MTK_INST_DECODER= 0,
> > +MTK_INST_ENCODER= 1,
> > +};
> > +
> > +#endif /* _MTK_VCODEC_COM_DRV_H_ */
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c
> > index b5cdbbfcc388..0f4bbfb3bba5 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c
> > @@ -10,7 +10,7 @@
> >  #include "mtk_vcodec_drv.h"
> >  #include "mtk_vcodec_util.h"
> >  
> > -static void mtk_vdec_dbgfs_get_format_type(struct mtk_vcodec_ctx
> *ctx, char *buf,
> > +static void mtk_vdec_dbgfs_get_format_type(struct
> mtk_vcodec_dec_ctx *ctx, char *buf,
> >     int *used, int total)
> >  {
> >  int curr_len;
> > @@ -91,7 +91,7 @@ static ssize_t mtk_vdec_dbgfs_read(struct file
> *filp, char __user *ubuf,
> >  struct mtk_vcodec_dev *vcodec_dev = filp->private_data;
> >  struct mtk_vcodec_dbgfs *dbgfs = &vcodec_dev->dbgfs;
> >  struct mtk_vcodec_dbgfs_inst *dbgfs_inst;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  int total_len = 200 * (dbgfs->inst_count == 0 ? 1 : dbgfs-
> >inst_count);
> >  int used_len = 0, curr_len, ret;
> >  bool dbgfs_index[MTK_VDEC_DBGFS_MAX] = {0};
> > @@ -143,7 +143,7 @@ static const struct file_operations vdec_fops =
> {
> >  .read = mtk_vdec_dbgfs_read,
> >  };
> >  
> > -void mtk_vcodec_dbgfs_create(struct mtk_vcodec_ctx *ctx)
> > +void mtk_vcodec_dbgfs_create(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct mtk_vcodec_dbgfs_inst *dbgfs_inst;
> >  struct mtk_vcodec_dev *vcodec_dev = ctx->dev;
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h
> > index 241ff8197e73..372413d590c5 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h
> > @@ -8,7 +8,7 @@
> >  #define __MTK_VCODEC_DBGFS_H__
> >  
> >  struct mtk_vcodec_dev;
> > -struct mtk_vcodec_ctx;
> > +struct mtk_vcodec_dec_ctx;
> >  
> >  /*
> >   * enum mtk_vdec_dbgfs_log_index  - used to get different debug
> information
> > @@ -22,12 +22,12 @@ enum mtk_vdec_dbgfs_log_index {
> >  /**
> >   * struct mtk_vcodec_dbgfs_inst  - debugfs information for each
> inst
> >   * @node:       list node for each inst
> > - * @vcodec_ctx: struct mtk_vcodec_ctx
> > + * @vcodec_ctx: struct mtk_vcodec_dec_ctx
> >   * @inst_id:    index of the context that the same with ctx->id
> >   */
> >  struct mtk_vcodec_dbgfs_inst {
> >  struct list_head node;
> > -struct mtk_vcodec_ctx *vcodec_ctx;
> > +struct mtk_vcodec_dec_ctx *vcodec_ctx;
> >  int inst_id;
> >  };
> >  
> > @@ -50,12 +50,12 @@ struct mtk_vcodec_dbgfs {
> >  };
> >  
> >  #if defined(CONFIG_DEBUG_FS)
> > -void mtk_vcodec_dbgfs_create(struct mtk_vcodec_ctx *ctx);
> > +void mtk_vcodec_dbgfs_create(struct mtk_vcodec_dec_ctx *ctx);
> >  void mtk_vcodec_dbgfs_remove(struct mtk_vcodec_dev *vcodec_dev,
> int ctx_id);
> >  void mtk_vcodec_dbgfs_init(struct mtk_vcodec_dev *vcodec_dev, bool
> is_encode);
> >  void mtk_vcodec_dbgfs_deinit(struct mtk_vcodec_dev *vcodec_dev);
> >  #else
> > -static inline void mtk_vcodec_dbgfs_create(struct mtk_vcodec_ctx
> *ctx)
> > +static inline void mtk_vcodec_dbgfs_create(struct
> mtk_vcodec_dec_ctx *ctx)
> >  {
> >  }
> >  
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
> > index 269f90fe0a1a..619ff3dd8d50 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
> > @@ -35,7 +35,7 @@ mtk_vdec_find_format(struct v4l2_format *f,
> >  return NULL;
> >  }
> >  
> > -static bool mtk_vdec_get_cap_fmt(struct mtk_vcodec_ctx *ctx, int
> format_index)
> > +static bool mtk_vdec_get_cap_fmt(struct mtk_vcodec_dec_ctx *ctx,
> int format_index)
> >  {
> >  const struct mtk_vcodec_dec_pdata *dec_pdata = ctx->dev-
> >vdec_pdata;
> >  const struct mtk_video_fmt *fmt;
> > @@ -55,7 +55,7 @@ static bool mtk_vdec_get_cap_fmt(struct
> mtk_vcodec_ctx *ctx, int format_index)
> >  return false;
> >  }
> >  
> > -static struct mtk_q_data *mtk_vdec_get_q_data(struct
> mtk_vcodec_ctx *ctx,
> > +static struct mtk_q_data *mtk_vdec_get_q_data(struct
> mtk_vcodec_dec_ctx *ctx,
> >        enum v4l2_buf_type type)
> >  {
> >  if (V4L2_TYPE_IS_OUTPUT(type))
> > @@ -74,7 +74,7 @@ static int vidioc_try_decoder_cmd(struct file
> *file, void *priv,
> >  static int vidioc_decoder_cmd(struct file *file, void *priv,
> >  struct v4l2_decoder_cmd *cmd)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  struct vb2_queue *src_vq, *dst_vq;
> >  int ret;
> >  
> > @@ -112,23 +112,23 @@ static int vidioc_decoder_cmd(struct file
> *file, void *priv,
> >  return 0;
> >  }
> >  
> > -void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx)
> > +void mtk_vdec_unlock(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  mutex_unlock(&ctx->dev->dec_mutex[ctx->hw_id]);
> >  }
> >  
> > -void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx)
> > +void mtk_vdec_lock(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  mutex_lock(&ctx->dev->dec_mutex[ctx->hw_id]);
> >  }
> >  
> > -void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx)
> > +void mtk_vcodec_dec_release(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  vdec_if_deinit(ctx);
> >  ctx->state = MTK_STATE_FREE;
> >  }
> >  
> > -void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx *ctx)
> > +void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_dec_ctx
> *ctx)
> >  {
> >  struct mtk_q_data *q_data;
> >  
> > @@ -169,7 +169,7 @@ void mtk_vcodec_dec_set_default_params(struct
> mtk_vcodec_ctx *ctx)
> >  static int vidioc_vdec_qbuf(struct file *file, void *priv,
> >      struct v4l2_buffer *buf)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  
> >  if (ctx->state == MTK_STATE_ABORT) {
> >  mtk_v4l2_vdec_err(ctx, "[%d] Call on QBUF after unrecoverable
> error", ctx->id);
> > @@ -182,7 +182,7 @@ static int vidioc_vdec_qbuf(struct file *file,
> void *priv,
> >  static int vidioc_vdec_dqbuf(struct file *file, void *priv,
> >       struct v4l2_buffer *buf)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  
> >  if (ctx->state == MTK_STATE_ABORT) {
> >  mtk_v4l2_vdec_err(ctx, "[%d] Call on DQBUF after unrecoverable
> error", ctx->id);
> > @@ -194,7 +194,7 @@ static int vidioc_vdec_dqbuf(struct file *file,
> void *priv,
> >  
> >  static int mtk_vcodec_dec_get_chip_name(void *priv)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  struct device *dev = &ctx->dev->plat_dev->dev;
> >  
> >  if (of_device_is_compatible(dev->of_node, "mediatek,mt8173-vcodec-
> dec"))
> > @@ -216,7 +216,7 @@ static int mtk_vcodec_dec_get_chip_name(void
> *priv)
> >  static int vidioc_vdec_querycap(struct file *file, void *priv,
> >  struct v4l2_capability *cap)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  struct device *dev = &ctx->dev->plat_dev->dev;
> >  int platform_name = mtk_vcodec_dec_get_chip_name(priv);
> >  
> > @@ -229,7 +229,7 @@ static int vidioc_vdec_querycap(struct file
> *file, void *priv,
> >  static int vidioc_vdec_subscribe_evt(struct v4l2_fh *fh,
> >       const struct v4l2_event_subscription *sub)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(fh);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(fh);
> >  
> >  if (ctx->dev->vdec_pdata->uses_stateless_api)
> >  return v4l2_ctrl_subscribe_event(fh, sub);
> > @@ -244,7 +244,7 @@ static int vidioc_vdec_subscribe_evt(struct
> v4l2_fh *fh,
> >  }
> >  }
> >  
> > -static int vidioc_try_fmt(struct mtk_vcodec_ctx *ctx, struct
> v4l2_format *f,
> > +static int vidioc_try_fmt(struct mtk_vcodec_dec_ctx *ctx, struct
> v4l2_format *f,
> >    const struct mtk_video_fmt *fmt)
> >  {
> >  struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
> > @@ -312,7 +312,7 @@ static int vidioc_try_fmt_vid_cap_mplane(struct
> file *file, void *priv,
> >  struct v4l2_format *f)
> >  {
> >  const struct mtk_video_fmt *fmt;
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  const struct mtk_vcodec_dec_pdata *dec_pdata = ctx->dev-
> >vdec_pdata;
> >  
> >  fmt = mtk_vdec_find_format(f, dec_pdata);
> > @@ -330,7 +330,7 @@ static int vidioc_try_fmt_vid_out_mplane(struct
> file *file, void *priv,
> >  {
> >  struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
> >  const struct mtk_video_fmt *fmt;
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  const struct mtk_vcodec_dec_pdata *dec_pdata = ctx->dev-
> >vdec_pdata;
> >  
> >  fmt = mtk_vdec_find_format(f, dec_pdata);
> > @@ -351,7 +351,7 @@ static int vidioc_try_fmt_vid_out_mplane(struct
> file *file, void *priv,
> >  static int vidioc_vdec_g_selection(struct file *file, void *priv,
> >  struct v4l2_selection *s)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  struct mtk_q_data *q_data;
> >  
> >  if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
> > @@ -400,7 +400,7 @@ static int vidioc_vdec_g_selection(struct file
> *file, void *priv,
> >  static int vidioc_vdec_s_selection(struct file *file, void *priv,
> >  struct v4l2_selection *s)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  
> >  if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
> >  return -EINVAL;
> > @@ -422,7 +422,7 @@ static int vidioc_vdec_s_selection(struct file
> *file, void *priv,
> >  static int vidioc_vdec_s_fmt(struct file *file, void *priv,
> >       struct v4l2_format *f)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  struct v4l2_pix_format_mplane *pix_mp;
> >  struct mtk_q_data *q_data;
> >  int ret = 0;
> > @@ -552,7 +552,7 @@ static int vidioc_enum_framesizes(struct file
> *file, void *priv,
> >  struct v4l2_frmsizeenum *fsize)
> >  {
> >  int i = 0;
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  const struct mtk_vcodec_dec_pdata *dec_pdata = ctx->dev-
> >vdec_pdata;
> >  
> >  if (fsize->index != 0)
> > @@ -584,7 +584,7 @@ static int vidioc_enum_framesizes(struct file
> *file, void *priv,
> >  static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, void *priv,
> >     bool output_queue)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  const struct mtk_vcodec_dec_pdata *dec_pdata = ctx->dev-
> >vdec_pdata;
> >  const struct mtk_video_fmt *fmt;
> >  int i, j = 0;
> > @@ -630,7 +630,7 @@ static int vidioc_vdec_enum_fmt_vid_out(struct
> file *file, void *priv,
> >  static int vidioc_vdec_g_fmt(struct file *file, void *priv,
> >       struct v4l2_format *f)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(priv);
> >  struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
> >  struct vb2_queue *vq;
> >  struct mtk_q_data *q_data;
> > @@ -719,7 +719,7 @@ int vb2ops_vdec_queue_setup(struct vb2_queue
> *vq, unsigned int *nbuffers,
> >      unsigned int *nplanes, unsigned int sizes[],
> >      struct device *alloc_devs[])
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vq);
> > +struct mtk_vcodec_dec_ctx *ctx = vb2_get_drv_priv(vq);
> >  struct mtk_q_data *q_data;
> >  unsigned int i;
> >  
> > @@ -761,7 +761,7 @@ int vb2ops_vdec_queue_setup(struct vb2_queue
> *vq, unsigned int *nbuffers,
> >  
> >  int vb2ops_vdec_buf_prepare(struct vb2_buffer *vb)
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> > +struct mtk_vcodec_dec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> >  struct mtk_q_data *q_data;
> >  int i;
> >  
> > @@ -785,7 +785,7 @@ int vb2ops_vdec_buf_prepare(struct vb2_buffer
> *vb)
> >  
> >  void vb2ops_vdec_buf_finish(struct vb2_buffer *vb)
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> > +struct mtk_vcodec_dec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> >  struct vb2_v4l2_buffer *vb2_v4l2;
> >  struct mtk_video_dec_buf *buf;
> >  bool buf_error;
> > @@ -823,7 +823,7 @@ int vb2ops_vdec_buf_init(struct vb2_buffer *vb)
> >  
> >  int vb2ops_vdec_start_streaming(struct vb2_queue *q, unsigned int
> count)
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
> > +struct mtk_vcodec_dec_ctx *ctx = vb2_get_drv_priv(q);
> >  
> >  if (ctx->state == MTK_STATE_FLUSH)
> >  ctx->state = MTK_STATE_HEADER;
> > @@ -834,7 +834,7 @@ int vb2ops_vdec_start_streaming(struct
> vb2_queue *q, unsigned int count)
> >  void vb2ops_vdec_stop_streaming(struct vb2_queue *q)
> >  {
> >  struct vb2_v4l2_buffer *src_buf = NULL, *dst_buf = NULL;
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
> > +struct mtk_vcodec_dec_ctx *ctx = vb2_get_drv_priv(q);
> >  int ret;
> >  
> >  mtk_v4l2_vdec_dbg(3, ctx, "[%d] (%d) state=(%x) ctx-
> >decoded_frame_cnt=%d",
> > @@ -889,7 +889,7 @@ void vb2ops_vdec_stop_streaming(struct
> vb2_queue *q)
> >  
> >  static void m2mops_vdec_device_run(void *priv)
> >  {
> > -struct mtk_vcodec_ctx *ctx = priv;
> > +struct mtk_vcodec_dec_ctx *ctx = priv;
> >  struct mtk_vcodec_dev *dev = ctx->dev;
> >  
> >  queue_work(dev->decode_workqueue, &ctx->decode_work);
> > @@ -897,7 +897,7 @@ static void m2mops_vdec_device_run(void *priv)
> >  
> >  static int m2mops_vdec_job_ready(void *m2m_priv)
> >  {
> > -struct mtk_vcodec_ctx *ctx = m2m_priv;
> > +struct mtk_vcodec_dec_ctx *ctx = m2m_priv;
> >  
> >  mtk_v4l2_vdec_dbg(3, ctx, "[%d]", ctx->id);
> >  
> > @@ -916,7 +916,7 @@ static int m2mops_vdec_job_ready(void
> *m2m_priv)
> >  
> >  static void m2mops_vdec_job_abort(void *priv)
> >  {
> > -struct mtk_vcodec_ctx *ctx = priv;
> > +struct mtk_vcodec_dec_ctx *ctx = priv;
> >  
> >  ctx->state = MTK_STATE_ABORT;
> >  }
> > @@ -964,7 +964,7 @@ const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops
> = {
> >  int mtk_vcodec_dec_queue_init(void *priv, struct vb2_queue
> *src_vq,
> >     struct vb2_queue *dst_vq)
> >  {
> > -struct mtk_vcodec_ctx *ctx = priv;
> > +struct mtk_vcodec_dec_ctx *ctx = priv;
> >  int ret = 0;
> >  
> >  mtk_v4l2_vdec_dbg(3, ctx, "[%d]", ctx->id);
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.h
> > index 4572f92826f2..ece27c880e50 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.h
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.h
> > @@ -11,6 +11,8 @@
> >  #include <media/videobuf2-core.h>
> >  #include <media/v4l2-mem2mem.h>
> >  
> > +#include "mtk_vcodec_dec_drv.h"
> > +
> >  #define VCODEC_DEC_ALIGNED_64 64
> >  #define VCODEC_CAPABILITY_4K_DISABLED0x10
> >  #define VCODEC_DEC_4K_CODED_WIDTH4096U
> > @@ -78,12 +80,12 @@ extern const struct mtk_vcodec_dec_pdata
> mtk_vdec_single_core_pdata;
> >   * mtk_vdec_lock get decoder hw lock and set curr_ctx
> >   * to ctx instance that get lock
> >   */
> > -void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx);
> > -void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx);
> > +void mtk_vdec_unlock(struct mtk_vcodec_dec_ctx *ctx);
> > +void mtk_vdec_lock(struct mtk_vcodec_dec_ctx *ctx);
> >  int mtk_vcodec_dec_queue_init(void *priv, struct vb2_queue
> *src_vq,
> >     struct vb2_queue *dst_vq);
> > -void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx
> *ctx);
> > -void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx);
> > +void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_dec_ctx
> *ctx);
> > +void mtk_vcodec_dec_release(struct mtk_vcodec_dec_ctx *ctx);
> >  
> >  /*
> >   * VB2 ops
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
> > index 4469c2411f40..5609fd3268f2 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
> > @@ -25,7 +25,7 @@
> >  #include "mtk_vcodec_util.h"
> >  #include "mtk_vcodec_fw.h"
> >  
> > -static int mtk_vcodec_get_hw_count(struct mtk_vcodec_ctx *ctx,
> struct mtk_vcodec_dev *dev)
> > +static int mtk_vcodec_get_hw_count(struct mtk_vcodec_dec_ctx *ctx,
> struct mtk_vcodec_dev *dev)
> >  {
> >  switch (dev->vdec_pdata->hw_arch) {
> >  case MTK_VDEC_PURE_SINGLE_CORE:
> > @@ -41,7 +41,7 @@ static int mtk_vcodec_get_hw_count(struct
> mtk_vcodec_ctx *ctx, struct mtk_vcodec
> >  static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
> >  {
> >  struct mtk_vcodec_dev *dev = priv;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  u32 cg_status = 0;
> >  unsigned int dec_done_status = 0;
> >  void __iomem *vdec_misc_addr = dev->reg_base[VDEC_MISC] +
> > @@ -68,7 +68,7 @@ static irqreturn_t mtk_vcodec_dec_irq_handler(int
> irq, void *priv)
> >  writel((readl(vdec_misc_addr) & ~VDEC_IRQ_CLR),
> >  dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);
> >  
> > -wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED, 0);
> > +wake_up_dec_ctx(ctx, MTK_INST_IRQ_RECEIVED, 0);
> >  
> >  mtk_v4l2_vdec_dbg(3, ctx, "wake up ctx %d, dec_done_status=%x",
> ctx->id, dec_done_status);
> >  
> > @@ -137,7 +137,7 @@ static int mtk_vcodec_init_dec_resources(struct
> mtk_vcodec_dev *dev)
> >  static int fops_vcodec_open(struct file *file)
> >  {
> >  struct mtk_vcodec_dev *dev = video_drvdata(file);
> > -struct mtk_vcodec_ctx *ctx = NULL;
> > +struct mtk_vcodec_dec_ctx *ctx = NULL;
> >  int ret = 0, i, hw_count;
> >  struct vb2_queue *src_vq;
> >  
> > @@ -234,7 +234,7 @@ static int fops_vcodec_open(struct file *file)
> >  static int fops_vcodec_release(struct file *file)
> >  {
> >  struct mtk_vcodec_dev *dev = video_drvdata(file);
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(file->private_data);
> > +struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(file-
> >private_data);
> >  
> >  mtk_v4l2_vdec_dbg(0, ctx, "[%d] decoder", ctx->id);
> >  mutex_lock(&dev->dev_mutex);
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.h
> > new file mode 100644
> > index 000000000000..94870b651919
> > --- /dev/null
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.h
> > @@ -0,0 +1,158 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Copyright (c) 2023 MediaTek Inc.
> > + * Author: Yunfei Dong <yunfei.dong@...iatek.com>
> > + */
> > +
> > +#ifndef _MTK_VCODEC_DEC_DRV_H_
> > +#define _MTK_VCODEC_DEC_DRV_H_
> > +
> > +#include "mtk_vcodec_com_drv.h"
> > +#include "mtk_vcodec_fw_priv.h"
> > +#include "vdec_msg_queue.h"
> > +
> > +/**
> > + * struct vdec_pic_info  - picture size information
> > + * @pic_w: picture width
> > + * @pic_h: picture height
> > + * @buf_w: picture buffer width (64 aligned up from pic_w)
> > + * @buf_h: picture buffer heiht (64 aligned up from pic_h)
> > + * @fb_sz: bitstream size of each plane
> > + * E.g. suppose picture size is 176x144,
> > + *      buffer size will be aligned to 176x160.
> > + * @cap_fourcc: fourcc number(may changed when resolution change)
> > + * @reserved: align struct to 64-bit in order to adjust 32-bit and
> 64-bit os.
> > + */
> > +struct vdec_pic_info {
> > +unsigned int pic_w;
> > +unsigned int pic_h;
> > +unsigned int buf_w;
> > +unsigned int buf_h;
> > +unsigned int fb_sz[VIDEO_MAX_PLANES];
> > +unsigned int cap_fourcc;
> > +unsigned int reserved;
> > +};
> > +
> > +/*
> > + * enum mtk_vdec_hw_id - Hardware index used to separate
> > + *                         different hardware
> > + */
> > +enum mtk_vdec_hw_id {
> > +MTK_VDEC_CORE,
> > +MTK_VDEC_LAT0,
> > +MTK_VDEC_LAT1,
> > +MTK_VDEC_LAT_SOC,
> > +MTK_VDEC_HW_MAX,
> > +};
> > +
> > +/**
> > + * struct mtk_vcodec_dec_ctx - Context (instance) private data.
> > + *
> > + * @type: type of the instance - decoder or encoder
> 
> For that specific tructure, it must be set to decoder only. I think
> its
> important to document that this must stay first and is used for type
> checking.
> 
Fixed.
> > + * @dev: pointer to the mtk_vcodec_dev of the device
> > + * @list: link to ctx_list of mtk_vcodec_dev
> > + *
> > + * @fh: struct v4l2_fh
> > + * @m2m_ctx: pointer to the v4l2_m2m_ctx of the context
> > + * @q_data: store information of input and output queue
> > + *    of the context
> > + * @id: index of the context that this structure describes
> > + * @state: state of the context
> > + *
> > + * @dec_if: hooked decoder driver interface
> > + * @drv_handle: driver handle for specific decode/encode instance
> > + *
> > + * @picinfo: store picture info after header parsing
> > + * @dpb_size: store dpb count after header parsing
> > + *
> > + * @int_cond: variable used by the waitqueue
> > + * @int_type: type of the last interrupt
> > + * @queue: waitqueue that can be used to wait for this context to
> > + *   finish
> > + * @irq_status: irq status
> > + *
> > + * @ctrl_hdl: handler for v4l2 framework
> > + * @decode_work: worker for the decoding
> > + * @last_decoded_picinfo: pic information get from latest decode
> > + * @empty_flush_buf: a fake size-0 capture buffer that indicates
> flush. Only
> > + *     to be used with encoder and stateful decoder.
> > + * @is_flushing: set to true if flushing is in progress.
> > + *
> > + * @current_codec: current set input codec, in V4L2 pixel format
> > + * @capture_fourcc: capture queue type in V4L2 pixel format
> > + *
> > + * @colorspace: enum v4l2_colorspace; supplemental to pixelformat
> > + * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
> > + * @quantization: enum v4l2_quantization, colorspace quantization
> > + * @xfer_func: enum v4l2_xfer_func, colorspace transfer function
> > + *
> > + * @decoded_frame_cnt: number of decoded frames
> > + * @lock: protect variables accessed by V4L2 threads and worker
> thread such as
> > + *  mtk_video_dec_buf.
> > + * @hw_id: hardware index used to identify different hardware.
> > + *
> > + * @msg_queue: msg queue used to store lat buffer information.
> > + */
> > +struct mtk_vcodec_dec_ctx {
> > +enum mtk_instance_type type;
> > +struct mtk_vcodec_dev *dev;
> > +struct list_head list;
> > +
> > +struct v4l2_fh fh;
> > +struct v4l2_m2m_ctx *m2m_ctx;
> > +struct mtk_q_data q_data[2];
> > +int id;
> > +enum mtk_instance_state state;
> > +
> > +const struct vdec_common_if *dec_if;
> > +void *drv_handle;
> > +
> > +struct vdec_pic_info picinfo;
> > +int dpb_size;
> > +
> > +int int_cond[MTK_VDEC_HW_MAX];
> > +int int_type[MTK_VDEC_HW_MAX];
> > +wait_queue_head_t queue[MTK_VDEC_HW_MAX];
> > +unsigned int irq_status;
> > +
> > +struct v4l2_ctrl_handler ctrl_hdl;
> > +struct work_struct decode_work;
> > +struct vdec_pic_info last_decoded_picinfo;
> > +struct v4l2_m2m_buffer empty_flush_buf;
> > +bool is_flushing;
> > +
> > +u32 current_codec;
> > +u32 capture_fourcc;
> > +
> > +enum v4l2_colorspace colorspace;
> > +enum v4l2_ycbcr_encoding ycbcr_enc;
> > +enum v4l2_quantization quantization;
> > +enum v4l2_xfer_func xfer_func;
> > +
> > +int decoded_frame_cnt;
> > +struct mutex lock;
> > +int hw_id;
> > +
> > +struct vdec_msg_queue msg_queue;
> > +};
> > +
> > +static inline struct mtk_vcodec_dec_ctx *fh_to_dec_ctx(struct
> v4l2_fh *fh)
> > +{
> > +return container_of(fh, struct mtk_vcodec_dec_ctx, fh);
> > +}
> > +
> > +static inline struct mtk_vcodec_dec_ctx *ctrl_to_dec_ctx(struct
> v4l2_ctrl *ctrl)
> > +{
> > +return container_of(ctrl->handler, struct mtk_vcodec_dec_ctx,
> ctrl_hdl);
> > +}
> > +
> > +/* Wake up context wait_queue */
> > +static inline void
> > +wake_up_dec_ctx(struct mtk_vcodec_dec_ctx *ctx, unsigned int
> reason, unsigned int hw_id)
> > +{
> > +ctx->int_cond[hw_id] = 1;
> > +ctx->int_type[hw_id] = reason;
> > +wake_up_interruptible(&ctx->queue[hw_id]);
> > +}
> > +
> > +#endif /* _MTK_VCODEC_DEC_DRV_H_ */
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_hw.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_hw.c
> > index 7c4d8ec201e3..dde0894f2ab0 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_hw.c
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_hw.c
> > @@ -66,7 +66,7 @@ static int mtk_vdec_hw_prob_done(struct
> mtk_vcodec_dev *vdec_dev)
> >  static irqreturn_t mtk_vdec_hw_irq_handler(int irq, void *priv)
> >  {
> >  struct mtk_vdec_hw_dev *dev = priv;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  u32 cg_status;
> >  unsigned int dec_done_status;
> >  void __iomem *vdec_misc_addr = dev->reg_base[VDEC_HW_MISC] +
> > @@ -90,7 +90,7 @@ static irqreturn_t mtk_vdec_hw_irq_handler(int
> irq, void *priv)
> >  writel(dec_done_status | VDEC_IRQ_CFG, vdec_misc_addr);
> >  writel(dec_done_status & ~VDEC_IRQ_CLR, vdec_misc_addr);
> >  
> > -wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED, dev->hw_idx);
> > +wake_up_dec_ctx(ctx, MTK_INST_IRQ_RECEIVED, dev->hw_idx);
> >  
> >  mtk_v4l2_vdec_dbg(3, ctx, "wake up ctx %d, dec_done_status=%x",
> >    ctx->id, dec_done_status);
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_hw.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_hw.h
> > index 36faa8d9d681..d62c7f961cfa 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_hw.h
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_hw.h
> > @@ -48,7 +48,7 @@ struct mtk_vdec_hw_dev {
> >  struct mtk_vcodec_dev *main_dev;
> >  void __iomem *reg_base[VDEC_HW_MAX];
> >  
> > -struct mtk_vcodec_ctx *curr_ctx;
> > +struct mtk_vcodec_dec_ctx *curr_ctx;
> >  
> >  int dec_irq;
> >  struct mtk_vcodec_pm pm;
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.c
> > index 3ab996705b97..29ef00c4a326 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.c
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.c
> > @@ -143,7 +143,7 @@ static void mtk_vcodec_dec_disable_irq(struct
> mtk_vcodec_dev *vdec_dev, int hw_i
> >  }
> >  }
> >  
> > -static void mtk_vcodec_load_racing_info(struct mtk_vcodec_ctx
> *ctx)
> > +static void mtk_vcodec_load_racing_info(struct mtk_vcodec_dec_ctx
> *ctx)
> >  {
> >  void __iomem *vdec_racing_addr;
> >  int j;
> > @@ -157,7 +157,7 @@ static void mtk_vcodec_load_racing_info(struct
> mtk_vcodec_ctx *ctx)
> >  mutex_unlock(&ctx->dev->dec_racing_info_mutex);
> >  }
> >  
> > -static void mtk_vcodec_record_racing_info(struct mtk_vcodec_ctx
> *ctx)
> > +static void mtk_vcodec_record_racing_info(struct
> mtk_vcodec_dec_ctx *ctx)
> >  {
> >  void __iomem *vdec_racing_addr;
> >  int j;
> > @@ -231,7 +231,7 @@ static void mtk_vcodec_dec_child_dev_off(struct
> mtk_vcodec_dev *vdec_dev,
> >  }
> >  }
> >  
> > -void mtk_vcodec_dec_enable_hardware(struct mtk_vcodec_ctx *ctx,
> int hw_idx)
> > +void mtk_vcodec_dec_enable_hardware(struct mtk_vcodec_dec_ctx
> *ctx, int hw_idx)
> >  {
> >  mutex_lock(&ctx->dev->dec_mutex[hw_idx]);
> >  
> > @@ -247,7 +247,7 @@ void mtk_vcodec_dec_enable_hardware(struct
> mtk_vcodec_ctx *ctx, int hw_idx)
> >  }
> >  EXPORT_SYMBOL_GPL(mtk_vcodec_dec_enable_hardware);
> >  
> > -void mtk_vcodec_dec_disable_hardware(struct mtk_vcodec_ctx *ctx,
> int hw_idx)
> > +void mtk_vcodec_dec_disable_hardware(struct mtk_vcodec_dec_ctx
> *ctx, int hw_idx)
> >  {
> >  if (IS_VDEC_INNER_RACING(ctx->dev->dec_capability))
> >  mtk_vcodec_record_racing_info(ctx);
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.h
> > index dbcf3cabe6f3..f6c68e57bcc1 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.h
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.h
> > @@ -11,7 +11,7 @@
> >  
> >  int mtk_vcodec_init_dec_clk(struct platform_device *pdev, struct
> mtk_vcodec_pm *pm);
> >  
> > -void mtk_vcodec_dec_enable_hardware(struct mtk_vcodec_ctx *ctx,
> int hw_idx);
> > -void mtk_vcodec_dec_disable_hardware(struct mtk_vcodec_ctx *ctx,
> int hw_idx);
> > +void mtk_vcodec_dec_enable_hardware(struct mtk_vcodec_dec_ctx
> *ctx, int hw_idx);
> > +void mtk_vcodec_dec_disable_hardware(struct mtk_vcodec_dec_ctx
> *ctx, int hw_idx);
> >  
> >  #endif /* _MTK_VCODEC_DEC_PM_H_ */
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateful.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateful.c
> > index 3c289b08bc87..93230fe7ab97 100644
> > ---
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateful.c
> > +++
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateful.c
> > @@ -55,7 +55,7 @@ static const unsigned int num_supported_formats =
> >   * Note the buffers returned from codec driver may still be in
> driver's
> >   * reference list.
> >   */
> > -static struct vb2_buffer *get_display_buffer(struct mtk_vcodec_ctx
> *ctx)
> > +static struct vb2_buffer *get_display_buffer(struct
> mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_fb *disp_frame_buffer = NULL;
> >  struct mtk_video_dec_buf *dstbuf;
> > @@ -98,7 +98,7 @@ static struct vb2_buffer
> *get_display_buffer(struct mtk_vcodec_ctx *ctx)
> >   * previous sps/pps/resolution change decode, or do nothing if
> user
> >   * space still owns this buffer
> >   */
> > -static struct vb2_buffer *get_free_buffer(struct mtk_vcodec_ctx
> *ctx)
> > +static struct vb2_buffer *get_free_buffer(struct
> mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct mtk_video_dec_buf *dstbuf;
> >  struct vdec_fb *free_frame_buffer = NULL;
> > @@ -173,19 +173,19 @@ static struct vb2_buffer
> *get_free_buffer(struct mtk_vcodec_ctx *ctx)
> >  return &vb->vb2_buf;
> >  }
> >  
> > -static void clean_display_buffer(struct mtk_vcodec_ctx *ctx)
> > +static void clean_display_buffer(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  while (get_display_buffer(ctx))
> >  ;
> >  }
> >  
> > -static void clean_free_buffer(struct mtk_vcodec_ctx *ctx)
> > +static void clean_free_buffer(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  while (get_free_buffer(ctx))
> >  ;
> >  }
> >  
> > -static void mtk_vdec_queue_res_chg_event(struct mtk_vcodec_ctx
> *ctx)
> > +static void mtk_vdec_queue_res_chg_event(struct mtk_vcodec_dec_ctx
> *ctx)
> >  {
> >  static const struct v4l2_event ev_src_ch = {
> >  .type = V4L2_EVENT_SOURCE_CHANGE,
> > @@ -196,7 +196,7 @@ static void mtk_vdec_queue_res_chg_event(struct
> mtk_vcodec_ctx *ctx)
> >  v4l2_event_queue_fh(&ctx->fh, &ev_src_ch);
> >  }
> >  
> > -static int mtk_vdec_flush_decoder(struct mtk_vcodec_ctx *ctx)
> > +static int mtk_vdec_flush_decoder(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  bool res_chg;
> >  int ret;
> > @@ -211,7 +211,7 @@ static int mtk_vdec_flush_decoder(struct
> mtk_vcodec_ctx *ctx)
> >  return 0;
> >  }
> >  
> > -static void mtk_vdec_update_fmt(struct mtk_vcodec_ctx *ctx,
> > +static void mtk_vdec_update_fmt(struct mtk_vcodec_dec_ctx *ctx,
> >  unsigned int pixelformat)
> >  {
> >  const struct mtk_video_fmt *fmt;
> > @@ -232,7 +232,7 @@ static void mtk_vdec_update_fmt(struct
> mtk_vcodec_ctx *ctx,
> >  mtk_v4l2_vdec_err(ctx, "Cannot get fourcc(%d), using init value",
> pixelformat);
> >  }
> >  
> > -static int mtk_vdec_pic_info_update(struct mtk_vcodec_ctx *ctx)
> > +static int mtk_vdec_pic_info_update(struct mtk_vcodec_dec_ctx
> *ctx)
> >  {
> >  unsigned int dpbsize = 0;
> >  int ret;
> > @@ -277,8 +277,8 @@ static int mtk_vdec_pic_info_update(struct
> mtk_vcodec_ctx *ctx)
> >  
> >  static void mtk_vdec_worker(struct work_struct *work)
> >  {
> > -struct mtk_vcodec_ctx *ctx =
> > -container_of(work, struct mtk_vcodec_ctx, decode_work);
> > +struct mtk_vcodec_dec_ctx *ctx =
> > +container_of(work, struct mtk_vcodec_dec_ctx, decode_work);
> >  struct mtk_vcodec_dev *dev = ctx->dev;
> >  struct vb2_v4l2_buffer *src_buf, *dst_buf;
> >  struct mtk_vcodec_mem buf;
> > @@ -420,7 +420,7 @@ static void
> vb2ops_vdec_stateful_buf_queue(struct vb2_buffer *vb)
> >  bool res_chg = false;
> >  int ret;
> >  unsigned int dpbsize = 1, i;
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> > +struct mtk_vcodec_dec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> >  struct vb2_v4l2_buffer *vb2_v4l2;
> >  struct mtk_q_data *dst_q_data;
> >  
> > @@ -528,7 +528,7 @@ static void
> vb2ops_vdec_stateful_buf_queue(struct vb2_buffer *vb)
> >  
> >  static int mtk_vdec_g_v_ctrl(struct v4l2_ctrl *ctrl)
> >  {
> > -struct mtk_vcodec_ctx *ctx = ctrl_to_ctx(ctrl);
> > +struct mtk_vcodec_dec_ctx *ctx = ctrl_to_dec_ctx(ctrl);
> >  int ret = 0;
> >  
> >  switch (ctrl->id) {
> > @@ -550,7 +550,7 @@ static const struct v4l2_ctrl_ops
> mtk_vcodec_dec_ctrl_ops = {
> >  .g_volatile_ctrl = mtk_vdec_g_v_ctrl,
> >  };
> >  
> > -static int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_ctx *ctx)
> > +static int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_dec_ctx
> *ctx)
> >  {
> >  struct v4l2_ctrl *ctrl;
> >  
> > @@ -581,7 +581,7 @@ static int mtk_vcodec_dec_ctrls_setup(struct
> mtk_vcodec_ctx *ctx)
> >  return 0;
> >  }
> >  
> > -static void mtk_init_vdec_params(struct mtk_vcodec_ctx *ctx)
> > +static void mtk_init_vdec_params(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  unsigned int i;
> >  
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c
> > index ffe05ff31dd1..64e9dfd0fcb5 100644
> > ---
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c
> > +++
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c
> > @@ -218,7 +218,7 @@ static const struct v4l2_frmsize_stepwise
> stepwise_fhd = {
> >  .step_height = 16
> >  };
> >  
> > -static void mtk_vdec_stateless_cap_to_disp(struct mtk_vcodec_ctx
> *ctx, int error,
> > +static void mtk_vdec_stateless_cap_to_disp(struct
> mtk_vcodec_dec_ctx *ctx, int error,
> >     struct media_request *src_buf_req)
> >  {
> >  struct vb2_v4l2_buffer *vb2_dst;
> > @@ -242,7 +242,7 @@ static void
> mtk_vdec_stateless_cap_to_disp(struct mtk_vcodec_ctx *ctx, int error
> >  v4l2_ctrl_request_complete(src_buf_req, &ctx->ctrl_hdl);
> >  }
> >  
> > -static struct vdec_fb *vdec_get_cap_buffer(struct mtk_vcodec_ctx
> *ctx)
> > +static struct vdec_fb *vdec_get_cap_buffer(struct
> mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct mtk_video_dec_buf *framebuf;
> >  struct vb2_v4l2_buffer *vb2_v4l2;
> > @@ -279,15 +279,15 @@ static struct vdec_fb
> *vdec_get_cap_buffer(struct mtk_vcodec_ctx *ctx)
> >  
> >  static void vb2ops_vdec_buf_request_complete(struct vb2_buffer
> *vb)
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> > +struct mtk_vcodec_dec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> >  
> >  v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->ctrl_hdl);
> >  }
> >  
> >  static void mtk_vdec_worker(struct work_struct *work)
> >  {
> > -struct mtk_vcodec_ctx *ctx =
> > -container_of(work, struct mtk_vcodec_ctx, decode_work);
> > +struct mtk_vcodec_dec_ctx *ctx =
> > +container_of(work, struct mtk_vcodec_dec_ctx, decode_work);
> >  struct mtk_vcodec_dev *dev = ctx->dev;
> >  struct vb2_v4l2_buffer *vb2_v4l2_src;
> >  struct vb2_buffer *vb2_src;
> > @@ -362,7 +362,7 @@ static void mtk_vdec_worker(struct work_struct
> *work)
> >  
> >  static void vb2ops_vdec_stateless_buf_queue(struct vb2_buffer *vb)
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> > +struct mtk_vcodec_dec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> >  struct vb2_v4l2_buffer *vb2_v4l2 = to_vb2_v4l2_buffer(vb);
> >  
> >  mtk_v4l2_vdec_dbg(3, ctx, "[%d] (%d) id=%d, vb=%p", ctx->id, vb-
> >vb2_queue->type,
> > @@ -383,14 +383,14 @@ static void
> vb2ops_vdec_stateless_buf_queue(struct vb2_buffer *vb)
> >  }
> >  }
> >  
> > -static int mtk_vdec_flush_decoder(struct mtk_vcodec_ctx *ctx)
> > +static int mtk_vdec_flush_decoder(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  bool res_chg;
> >  
> >  return vdec_if_decode(ctx, NULL, NULL, &res_chg);
> >  }
> >  
> > -static int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_ctx *ctx)
> > +static int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_dec_ctx
> *ctx)
> >  {
> >  unsigned int i;
> >  
> > @@ -442,7 +442,7 @@ const struct media_device_ops
> mtk_vcodec_media_ops = {
> >  };
> >  
> >  static void mtk_vcodec_add_formats(unsigned int fourcc,
> > -   struct mtk_vcodec_ctx *ctx)
> > +   struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct mtk_vcodec_dev *dev = ctx->dev;
> >  const struct mtk_vcodec_dec_pdata *pdata = dev->vdec_pdata;
> > @@ -483,7 +483,7 @@ static void mtk_vcodec_add_formats(unsigned int
> fourcc,
> >    count_formats, ctx->dev->dec_capability);
> >  }
> >  
> > -static void mtk_vcodec_get_supported_formats(struct mtk_vcodec_ctx
> *ctx)
> > +static void mtk_vcodec_get_supported_formats(struct
> mtk_vcodec_dec_ctx *ctx)
> >  {
> >  int cap_format_count = 0, out_format_count = 0;
> >  
> > @@ -526,7 +526,7 @@ static void
> mtk_vcodec_get_supported_formats(struct mtk_vcodec_ctx *ctx)
> >  mtk_video_formats[cap_format_count + out_format_count - 1];
> >  }
> >  
> > -static void mtk_init_vdec_params(struct mtk_vcodec_ctx *ctx)
> > +static void mtk_init_vdec_params(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vb2_queue *src_vq;
> >  
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h
> > index e3230a4d7b8e..76db7770d981 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h
> > @@ -17,13 +17,14 @@
> >  #include <media/videobuf2-core.h>
> >  
> >  #include "mtk_vcodec_dbgfs.h"
> > +#include "mtk_vcodec_dec_drv.h"
> > +#include "mtk_vcodec_enc_drv.h"
> >  #include "mtk_vcodec_util.h"
> >  #include "vdec_msg_queue.h"
> >  
> >  #define MTK_VCODEC_DEC_NAME"mtk-vcodec-dec"
> >  #define MTK_VCODEC_ENC_NAME"mtk-vcodec-enc"
> >  
> > -#define MTK_VCODEC_MAX_PLANES3
> >  #define MTK_V4L2_BENCHMARK0
> >  #define WAIT_INTR_TIMEOUT_MS1000
> >  #define IS_VDEC_LAT_ARCH(hw_arch) ((hw_arch) >=
> MTK_VDEC_LAT_SINGLE_CORE)
> > @@ -53,60 +54,7 @@ enum mtk_hw_reg_idx {
> >  NUM_MAX_VCODEC_REG_BASE
> >  };
> >  
> > -/*
> > - * enum mtk_instance_type - The type of an MTK Vcodec instance.
> > - */
> > -enum mtk_instance_type {
> > -MTK_INST_DECODER= 0,
> > -MTK_INST_ENCODER= 1,
> > -};
> >  
> > -/**
> > - * enum mtk_instance_state - The state of an MTK Vcodec instance.
> > - * @MTK_STATE_FREE: default state when instance is created
> > - * @MTK_STATE_INIT: vcodec instance is initialized
> > - * @MTK_STATE_HEADER: vdec had sps/pps header parsed or venc
> > - *had sps/pps header encoded
> > - * @MTK_STATE_FLUSH: vdec is flushing. Only used by decoder
> > - * @MTK_STATE_ABORT: vcodec should be aborted
> > - */
> > -enum mtk_instance_state {
> > -MTK_STATE_FREE = 0,
> > -MTK_STATE_INIT = 1,
> > -MTK_STATE_HEADER = 2,
> > -MTK_STATE_FLUSH = 3,
> > -MTK_STATE_ABORT = 4,
> > -};
> > -
> > -/*
> > - * enum mtk_encode_param - General encoding parameters type
> > - */
> > -enum mtk_encode_param {
> > -MTK_ENCODE_PARAM_NONE = 0,
> > -MTK_ENCODE_PARAM_BITRATE = (1 << 0),
> > -MTK_ENCODE_PARAM_FRAMERATE = (1 << 1),
> > -MTK_ENCODE_PARAM_INTRA_PERIOD = (1 << 2),
> > -MTK_ENCODE_PARAM_FORCE_INTRA = (1 << 3),
> > -MTK_ENCODE_PARAM_GOP_SIZE = (1 << 4),
> > -};
> > -
> > -enum mtk_fmt_type {
> > -MTK_FMT_DEC = 0,
> > -MTK_FMT_ENC = 1,
> > -MTK_FMT_FRAME = 2,
> > -};
> > -
> > -/*
> > - * enum mtk_vdec_hw_id - Hardware index used to separate
> > - *                         different hardware
> > - */
> > -enum mtk_vdec_hw_id {
> > -MTK_VDEC_CORE,
> > -MTK_VDEC_LAT0,
> > -MTK_VDEC_LAT1,
> > -MTK_VDEC_LAT_SOC,
> > -MTK_VDEC_HW_MAX,
> > -};
> >  
> >  /*
> >   * enum mtk_vdec_hw_count - Supported hardware count
> > @@ -118,17 +66,6 @@ enum mtk_vdec_hw_count {
> >  MTK_VDEC_MAX_HW_COUNT,
> >  };
> >  
> > -/*
> > - * struct mtk_video_fmt - Structure used to store information
> about pixelformats
> > - */
> > -struct mtk_video_fmt {
> > -u32fourcc;
> > -enum mtk_fmt_typetype;
> > -u32num_planes;
> > -u32flags;
> > -struct v4l2_frmsize_stepwise frmsize;
> > -};
> > -
> >  /*
> >   * enum mtk_q_type - Type of queue
> >   */
> > @@ -137,54 +74,6 @@ enum mtk_q_type {
> >  MTK_Q_DATA_DST = 1,
> >  };
> >  
> > -/*
> > - * struct mtk_q_data - Structure used to store information about
> queue
> > - */
> > -struct mtk_q_data {
> > -unsigned intvisible_width;
> > -unsigned intvisible_height;
> > -unsigned intcoded_width;
> > -unsigned intcoded_height;
> > -enum v4l2_fieldfield;
> > -unsigned intbytesperline[MTK_VCODEC_MAX_PLANES];
> > -unsigned intsizeimage[MTK_VCODEC_MAX_PLANES];
> > -const struct mtk_video_fmt*fmt;
> > -};
> > -
> > -/**
> > - * struct mtk_enc_params - General encoding parameters
> > - * @bitrate: target bitrate in bits per second
> > - * @num_b_frame: number of b frames between p-frame
> > - * @rc_frame: frame based rate control
> > - * @rc_mb: macroblock based rate control
> > - * @seq_hdr_mode: H.264 sequence header is encoded separately or
> joined
> > - *  with the first frame
> > - * @intra_period: I frame period
> > - * @gop_size: group of picture size, it's used as the intra frame
> period
> > - * @framerate_num: frame rate numerator. ex: framerate_num=30 and
> > - *   framerate_denom=1 means FPS is 30
> > - * @framerate_denom: frame rate denominator. ex: framerate_num=30
> and
> > - *     framerate_denom=1 means FPS is 30
> > - * @h264_max_qp: Max value for H.264 quantization parameter
> > - * @h264_profile: V4L2 defined H.264 profile
> > - * @h264_level: V4L2 defined H.264 level
> > - * @force_intra: force/insert intra frame
> > - */
> > -struct mtk_enc_params {
> > -unsigned intbitrate;
> > -unsigned intnum_b_frame;
> > -unsigned intrc_frame;
> > -unsigned intrc_mb;
> > -unsigned intseq_hdr_mode;
> > -unsigned intintra_period;
> > -unsigned intgop_size;
> > -unsigned intframerate_num;
> > -unsigned intframerate_denom;
> > -unsigned inth264_max_qp;
> > -unsigned inth264_profile;
> > -unsigned inth264_level;
> > -unsigned intforce_intra;
> > -};
> >  
> >  /*
> >   * struct mtk_vcodec_clk_info - Structure used to store clock name
> > @@ -211,125 +100,6 @@ struct mtk_vcodec_pm {
> >  struct device*dev;
> >  };
> >  
> > -/**
> > - * struct vdec_pic_info  - picture size information
> > - * @pic_w: picture width
> > - * @pic_h: picture height
> > - * @buf_w: picture buffer width (64 aligned up from pic_w)
> > - * @buf_h: picture buffer heiht (64 aligned up from pic_h)
> > - * @fb_sz: bitstream size of each plane
> > - * E.g. suppose picture size is 176x144,
> > - *      buffer size will be aligned to 176x160.
> > - * @cap_fourcc: fourcc number(may changed when resolution change)
> > - * @reserved: align struct to 64-bit in order to adjust 32-bit and
> 64-bit os.
> > - */
> > -struct vdec_pic_info {
> > -unsigned int pic_w;
> > -unsigned int pic_h;
> > -unsigned int buf_w;
> > -unsigned int buf_h;
> > -unsigned int fb_sz[VIDEO_MAX_PLANES];
> > -unsigned int cap_fourcc;
> > -unsigned int reserved;
> > -};
> > -
> > -/**
> > - * struct mtk_vcodec_ctx - Context (instance) private data.
> > - *
> > - * @type: type of the instance - decoder or encoder
> > - * @dev: pointer to the mtk_vcodec_dev of the device
> > - * @list: link to ctx_list of mtk_vcodec_dev
> > - * @fh: struct v4l2_fh
> > - * @m2m_ctx: pointer to the v4l2_m2m_ctx of the context
> > - * @q_data: store information of input and output queue
> > - *    of the context
> > - * @id: index of the context that this structure describes
> > - * @state: state of the context
> > - * @param_change: indicate encode parameter type
> > - * @enc_params: encoding parameters
> > - * @dec_if: hooked decoder driver interface
> > - * @enc_if: hooked encoder driver interface
> > - * @drv_handle: driver handle for specific decode/encode instance
> > - *
> > - * @picinfo: store picture info after header parsing
> > - * @dpb_size: store dpb count after header parsing
> > - * @int_cond: variable used by the waitqueue
> > - * @int_type: type of the last interrupt
> > - * @queue: waitqueue that can be used to wait for this context to
> > - *   finish
> > - * @irq_status: irq status
> > - *
> > - * @ctrl_hdl: handler for v4l2 framework
> > - * @decode_work: worker for the decoding
> > - * @encode_work: worker for the encoding
> > - * @last_decoded_picinfo: pic information get from latest decode
> > - * @empty_flush_buf: a fake size-0 capture buffer that indicates
> flush. Only
> > - *     to be used with encoder and stateful decoder.
> > - * @is_flushing: set to true if flushing is in progress.
> > - * @current_codec: current set input codec, in V4L2 pixel format
> > - * @capture_fourcc: capture queue type in V4L2 pixel format
> > - *
> > - * @colorspace: enum v4l2_colorspace; supplemental to pixelformat
> > - * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
> > - * @quantization: enum v4l2_quantization, colorspace quantization
> > - * @xfer_func: enum v4l2_xfer_func, colorspace transfer function
> > - * @decoded_frame_cnt: number of decoded frames
> > - * @lock: protect variables accessed by V4L2 threads and worker
> thread such as
> > - *  mtk_video_dec_buf.
> > - * @hw_id: hardware index used to identify different hardware.
> > - *
> > - * @msg_queue: msg queue used to store lat buffer information.
> > - * @q_mutex: vb2_queue mutex.
> > - */
> > -struct mtk_vcodec_ctx {
> > -enum mtk_instance_type type;
> > -struct mtk_vcodec_dev *dev;
> > -struct list_head list;
> > -
> > -struct v4l2_fh fh;
> > -struct v4l2_m2m_ctx *m2m_ctx;
> > -struct mtk_q_data q_data[2];
> > -int id;
> > -enum mtk_instance_state state;
> > -enum mtk_encode_param param_change;
> > -struct mtk_enc_params enc_params;
> > -
> > -const struct vdec_common_if *dec_if;
> > -const struct venc_common_if *enc_if;
> > -void *drv_handle;
> > -
> > -struct vdec_pic_info picinfo;
> > -int dpb_size;
> > -
> > -int int_cond[MTK_VDEC_HW_MAX];
> > -int int_type[MTK_VDEC_HW_MAX];
> > -wait_queue_head_t queue[MTK_VDEC_HW_MAX];
> > -unsigned int irq_status;
> > -
> > -struct v4l2_ctrl_handler ctrl_hdl;
> > -struct work_struct decode_work;
> > -struct work_struct encode_work;
> > -struct vdec_pic_info last_decoded_picinfo;
> > -struct v4l2_m2m_buffer empty_flush_buf;
> > -bool is_flushing;
> > -
> > -u32 current_codec;
> > -u32 capture_fourcc;
> > -
> > -enum v4l2_colorspace colorspace;
> > -enum v4l2_ycbcr_encoding ycbcr_enc;
> > -enum v4l2_quantization quantization;
> > -enum v4l2_xfer_func xfer_func;
> > -
> > -int decoded_frame_cnt;
> > -struct mutex lock;
> > -int hw_id;
> > -
> > -struct vdec_msg_queue msg_queue;
> > -
> > -struct mutex q_mutex;
> > -};
> > -
> >  /*
> >   * enum mtk_vdec_hw_arch - Used to separate different hardware
> architecture
> >   */
> > @@ -375,12 +145,12 @@ enum mtk_vdec_format_types {
> >   */
> >  
> >  struct mtk_vcodec_dec_pdata {
> > -void (*init_vdec_params)(struct mtk_vcodec_ctx *ctx);
> > -int (*ctrls_setup)(struct mtk_vcodec_ctx *ctx);
> > +void (*init_vdec_params)(struct mtk_vcodec_dec_ctx *ctx);
> > +int (*ctrls_setup)(struct mtk_vcodec_dec_ctx *ctx);
> >  void (*worker)(struct work_struct *work);
> > -int (*flush_decoder)(struct mtk_vcodec_ctx *ctx);
> > -struct vdec_fb *(*get_cap_buffer)(struct mtk_vcodec_ctx *ctx);
> > -void (*cap_to_disp)(struct mtk_vcodec_ctx *ctx, int error,
> > +int (*flush_decoder)(struct mtk_vcodec_dec_ctx *ctx);
> > +struct vdec_fb *(*get_cap_buffer)(struct mtk_vcodec_dec_ctx *ctx);
> > +void (*cap_to_disp)(struct mtk_vcodec_dec_ctx *ctx, int error,
> >      struct media_request *src_buf_req);
> >  
> >  struct vb2_ops *vdec_vb2_ops;
> > @@ -434,9 +204,10 @@ struct mtk_vcodec_enc_pdata {
> >   * @m2m_dev_dec: m2m device for decoder
> >   * @m2m_dev_enc: m2m device for encoder.
> >   * @plat_dev: platform device
> > - * @ctx_list: list of struct mtk_vcodec_ctx
> > + * @ctx_list: list of struct mtk_vcodec_dec_ctx
> >   * @irqlock: protect data access by irq handler and work thread
> >   * @curr_ctx: The context that is waiting for codec hardware
> > + * @curr_enc_ctx: The encoder context that is waiting for codec
> hardware
> >   *
> >   * @reg_base: Mapped address of MTK Vcodec registers.
> >   * @vdec_pdata: decoder IC-specific data
> > @@ -482,7 +253,8 @@ struct mtk_vcodec_dev {
> >  struct platform_device *plat_dev;
> >  struct list_head ctx_list;
> >  spinlock_t irqlock;
> > -struct mtk_vcodec_ctx *curr_ctx;
> > +struct mtk_vcodec_dec_ctx *curr_ctx;
> > +struct mtk_vcodec_enc_ctx *curr_enc_ctx;
> >  void __iomem *reg_base[NUM_MAX_VCODEC_REG_BASE];
> >  const struct mtk_vcodec_dec_pdata *vdec_pdata;
> >  const struct mtk_vcodec_enc_pdata *venc_pdata;
> > @@ -520,23 +292,4 @@ struct mtk_vcodec_dev {
> >  struct mtk_vcodec_dbgfs dbgfs;
> >  };
> >  
> > -static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh)
> > -{
> > -return container_of(fh, struct mtk_vcodec_ctx, fh);
> > -}
> > -
> > -static inline struct mtk_vcodec_ctx *ctrl_to_ctx(struct v4l2_ctrl
> *ctrl)
> > -{
> > -return container_of(ctrl->handler, struct mtk_vcodec_ctx,
> ctrl_hdl);
> > -}
> > -
> > -/* Wake up context wait_queue */
> > -static inline void
> > -wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason,
> unsigned int hw_id)
> > -{
> > -ctx->int_cond[hw_id] = 1;
> > -ctx->int_type[hw_id] = reason;
> > -wake_up_interruptible(&ctx->queue[hw_id]);
> > -}
> > -
> >  #endif /* _MTK_VCODEC_DRV_H_ */
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc.c
> > index 276da79d98e7..deabf012848e 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc.c
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc.c
> > @@ -45,7 +45,7 @@ static const struct v4l2_frmsize_stepwise
> mtk_venc_4k_framesizes = {
> >  
> >  static int vidioc_venc_s_ctrl(struct v4l2_ctrl *ctrl)
> >  {
> > -struct mtk_vcodec_ctx *ctx = ctrl_to_ctx(ctrl);
> > +struct mtk_vcodec_enc_ctx *ctx = ctrl_to_enc_ctx(ctrl);
> >  struct mtk_enc_params *p = &ctx->enc_params;
> >  int ret = 0;
> >  
> > @@ -162,7 +162,7 @@ static int vidioc_enum_framesizes(struct file
> *file, void *fh,
> >    struct v4l2_frmsizeenum *fsize)
> >  {
> >  const struct mtk_video_fmt *fmt;
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(fh);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(fh);
> >  
> >  if (fsize->index != 0)
> >  return -EINVAL;
> > @@ -186,7 +186,7 @@ static int vidioc_enum_fmt_vid_cap(struct file
> *file, void *priv,
> >     struct v4l2_fmtdesc *f)
> >  {
> >  const struct mtk_vcodec_enc_pdata *pdata =
> > -fh_to_ctx(priv)->dev->venc_pdata;
> > +fh_to_enc_ctx(priv)->dev->venc_pdata;
> >  
> >  return vidioc_enum_fmt(f, pdata->capture_formats,
> >         pdata->num_capture_formats);
> > @@ -196,7 +196,7 @@ static int vidioc_enum_fmt_vid_out(struct file
> *file, void *priv,
> >     struct v4l2_fmtdesc *f)
> >  {
> >  const struct mtk_vcodec_enc_pdata *pdata =
> > -fh_to_ctx(priv)->dev->venc_pdata;
> > +fh_to_enc_ctx(priv)->dev->venc_pdata;
> >  
> >  return vidioc_enum_fmt(f, pdata->output_formats,
> >         pdata->num_output_formats);
> > @@ -204,7 +204,7 @@ static int vidioc_enum_fmt_vid_out(struct file
> *file, void *priv,
> >  
> >  static int mtk_vcodec_enc_get_chip_name(void *priv)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  struct device *dev = &ctx->dev->plat_dev->dev;
> >  
> >  if (of_device_is_compatible(dev->of_node, "mediatek,mt8173-vcodec-
> enc"))
> > @@ -224,7 +224,7 @@ static int mtk_vcodec_enc_get_chip_name(void
> *priv)
> >  static int vidioc_venc_querycap(struct file *file, void *priv,
> >  struct v4l2_capability *cap)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  struct device *dev = &ctx->dev->plat_dev->dev;
> >  int platform_name = mtk_vcodec_enc_get_chip_name(priv);
> >  
> > @@ -237,7 +237,7 @@ static int vidioc_venc_querycap(struct file
> *file, void *priv,
> >  static int vidioc_venc_s_parm(struct file *file, void *priv,
> >        struct v4l2_streamparm *a)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  struct v4l2_fract *timeperframe = &a->parm.output.timeperframe;
> >  
> >  if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
> > @@ -260,7 +260,7 @@ static int vidioc_venc_s_parm(struct file
> *file, void *priv,
> >  static int vidioc_venc_g_parm(struct file *file, void *priv,
> >        struct v4l2_streamparm *a)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  
> >  if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
> >  return -EINVAL;
> > @@ -274,7 +274,7 @@ static int vidioc_venc_g_parm(struct file
> *file, void *priv,
> >  return 0;
> >  }
> >  
> > -static struct mtk_q_data *mtk_venc_get_q_data(struct
> mtk_vcodec_ctx *ctx,
> > +static struct mtk_q_data *mtk_venc_get_q_data(struct
> mtk_vcodec_enc_ctx *ctx,
> >        enum v4l2_buf_type type)
> >  {
> >  if (V4L2_TYPE_IS_OUTPUT(type))
> > @@ -294,7 +294,7 @@ static void vidioc_try_fmt_cap(struct
> v4l2_format *f)
> >  /* V4L2 specification suggests the driver corrects the format
> struct if any of
> >   * the dimensions is unsupported
> >   */
> > -static int vidioc_try_fmt_out(struct mtk_vcodec_ctx *ctx, struct
> v4l2_format *f,
> > +static int vidioc_try_fmt_out(struct mtk_vcodec_enc_ctx *ctx,
> struct v4l2_format *f,
> >        const struct mtk_video_fmt *fmt)
> >  {
> >  struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
> > @@ -367,8 +367,8 @@ static int vidioc_try_fmt_out(struct
> mtk_vcodec_ctx *ctx, struct v4l2_format *f,
> >  return 0;
> >  }
> >  
> > -static void mtk_venc_set_param(struct mtk_vcodec_ctx *ctx,
> > -struct venc_enc_param *param)
> > +static void mtk_venc_set_param(struct mtk_vcodec_enc_ctx *ctx,
> > +       struct venc_enc_param *param)
> >  {
> >  struct mtk_q_data *q_data_src = &ctx->q_data[MTK_Q_DATA_SRC];
> >  struct mtk_enc_params *enc_params = &ctx->enc_params;
> > @@ -417,7 +417,7 @@ static void mtk_venc_set_param(struct
> mtk_vcodec_ctx *ctx,
> >  static int vidioc_venc_s_fmt_cap(struct file *file, void *priv,
> >       struct v4l2_format *f)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  const struct mtk_vcodec_enc_pdata *pdata = ctx->dev->venc_pdata;
> >  struct vb2_queue *vq;
> >  struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, f->type);
> > @@ -472,7 +472,7 @@ static int vidioc_venc_s_fmt_cap(struct file
> *file, void *priv,
> >  static int vidioc_venc_s_fmt_out(struct file *file, void *priv,
> >       struct v4l2_format *f)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  const struct mtk_vcodec_enc_pdata *pdata = ctx->dev->venc_pdata;
> >  struct vb2_queue *vq;
> >  struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, f->type);
> > @@ -527,7 +527,7 @@ static int vidioc_venc_g_fmt(struct file *file,
> void *priv,
> >       struct v4l2_format *f)
> >  {
> >  struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  struct vb2_queue *vq;
> >  struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, f->type);
> >  int i;
> > @@ -560,7 +560,7 @@ static int vidioc_try_fmt_vid_cap_mplane(struct
> file *file, void *priv,
> >   struct v4l2_format *f)
> >  {
> >  const struct mtk_video_fmt *fmt;
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  const struct mtk_vcodec_enc_pdata *pdata = ctx->dev->venc_pdata;
> >  
> >  fmt = mtk_venc_find_format(f->fmt.pix.pixelformat, pdata);
> > @@ -582,7 +582,7 @@ static int vidioc_try_fmt_vid_out_mplane(struct
> file *file, void *priv,
> >   struct v4l2_format *f)
> >  {
> >  const struct mtk_video_fmt *fmt;
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  const struct mtk_vcodec_enc_pdata *pdata = ctx->dev->venc_pdata;
> >  
> >  fmt = mtk_venc_find_format(f->fmt.pix.pixelformat, pdata);
> > @@ -603,7 +603,7 @@ static int vidioc_try_fmt_vid_out_mplane(struct
> file *file, void *priv,
> >  static int vidioc_venc_g_selection(struct file *file, void *priv,
> >       struct v4l2_selection *s)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, s->type);
> >  
> >  if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
> > @@ -633,7 +633,7 @@ static int vidioc_venc_g_selection(struct file
> *file, void *priv,
> >  static int vidioc_venc_s_selection(struct file *file, void *priv,
> >       struct v4l2_selection *s)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, s->type);
> >  
> >  if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
> > @@ -658,7 +658,7 @@ static int vidioc_venc_s_selection(struct file
> *file, void *priv,
> >  static int vidioc_venc_qbuf(struct file *file, void *priv,
> >      struct v4l2_buffer *buf)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  
> >  if (ctx->state == MTK_STATE_ABORT) {
> >  mtk_v4l2_venc_err(ctx, "[%d] Call on QBUF after unrecoverable
> error",
> > @@ -672,7 +672,7 @@ static int vidioc_venc_qbuf(struct file *file,
> void *priv,
> >  static int vidioc_venc_dqbuf(struct file *file, void *priv,
> >       struct v4l2_buffer *buf)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  int ret;
> >  
> >  if (ctx->state == MTK_STATE_ABORT) {
> > @@ -710,7 +710,7 @@ static int vidioc_venc_dqbuf(struct file *file,
> void *priv,
> >  static int vidioc_encoder_cmd(struct file *file, void *priv,
> >        struct v4l2_encoder_cmd *cmd)
> >  {
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(priv);
> >  struct vb2_queue *src_vq, *dst_vq;
> >  int ret;
> >  
> > @@ -804,7 +804,7 @@ static int vb2ops_venc_queue_setup(struct
> vb2_queue *vq,
> >     unsigned int sizes[],
> >     struct device *alloc_devs[])
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vq);
> > +struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(vq);
> >  struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, vq->type);
> >  unsigned int i;
> >  
> > @@ -826,7 +826,7 @@ static int vb2ops_venc_queue_setup(struct
> vb2_queue *vq,
> >  
> >  static int vb2ops_venc_buf_prepare(struct vb2_buffer *vb)
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> > +struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> >  struct mtk_q_data *q_data = mtk_venc_get_q_data(ctx, vb-
> >vb2_queue->type);
> >  int i;
> >  
> > @@ -843,7 +843,7 @@ static int vb2ops_venc_buf_prepare(struct
> vb2_buffer *vb)
> >  
> >  static void vb2ops_venc_buf_queue(struct vb2_buffer *vb)
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> > +struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> >  struct vb2_v4l2_buffer *vb2_v4l2 =
> >  container_of(vb, struct vb2_v4l2_buffer, vb2_buf);
> >  
> > @@ -865,7 +865,7 @@ static void vb2ops_venc_buf_queue(struct
> vb2_buffer *vb)
> >  
> >  static int vb2ops_venc_start_streaming(struct vb2_queue *q,
> unsigned int count)
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
> > +struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(q);
> >  struct venc_enc_param param;
> >  int ret, pm_ret;
> >  int i;
> > @@ -944,7 +944,7 @@ static int vb2ops_venc_start_streaming(struct
> vb2_queue *q, unsigned int count)
> >  
> >  static void vb2ops_venc_stop_streaming(struct vb2_queue *q)
> >  {
> > -struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
> > +struct mtk_vcodec_enc_ctx *ctx = vb2_get_drv_priv(q);
> >  struct vb2_v4l2_buffer *src_buf, *dst_buf;
> >  int ret;
> >  
> > @@ -1033,7 +1033,7 @@ static const struct vb2_ops mtk_venc_vb2_ops
> = {
> >  
> >  static int mtk_venc_encode_header(void *priv)
> >  {
> > -struct mtk_vcodec_ctx *ctx = priv;
> > +struct mtk_vcodec_enc_ctx *ctx = priv;
> >  int ret;
> >  struct vb2_v4l2_buffer *src_buf, *dst_buf;
> >  struct mtk_vcodec_mem bs_buf;
> > @@ -1080,7 +1080,7 @@ static int mtk_venc_encode_header(void *priv)
> >  return 0;
> >  }
> >  
> > -static int mtk_venc_param_change(struct mtk_vcodec_ctx *ctx)
> > +static int mtk_venc_param_change(struct mtk_vcodec_enc_ctx *ctx)
> >  {
> >  struct venc_enc_param enc_prm;
> >  struct vb2_v4l2_buffer *vb2_v4l2 = v4l2_m2m_next_src_buf(ctx-
> >m2m_ctx);
> > @@ -1153,7 +1153,7 @@ static int mtk_venc_param_change(struct
> mtk_vcodec_ctx *ctx)
> >   */
> >  static void mtk_venc_worker(struct work_struct *work)
> >  {
> > -struct mtk_vcodec_ctx *ctx = container_of(work, struct
> mtk_vcodec_ctx,
> > +struct mtk_vcodec_enc_ctx *ctx = container_of(work, struct
> mtk_vcodec_enc_ctx,
> >      encode_work);
> >  struct vb2_v4l2_buffer *src_buf, *dst_buf;
> >  struct venc_frm_buf frm_buf;
> > @@ -1233,7 +1233,7 @@ static void mtk_venc_worker(struct
> work_struct *work)
> >  
> >  static void m2mops_venc_device_run(void *priv)
> >  {
> > -struct mtk_vcodec_ctx *ctx = priv;
> > +struct mtk_vcodec_enc_ctx *ctx = priv;
> >  
> >  if ((ctx->q_data[MTK_Q_DATA_DST].fmt->fourcc == V4L2_PIX_FMT_H264)
> &&
> >      (ctx->state != MTK_STATE_HEADER)) {
> > @@ -1249,7 +1249,7 @@ static void m2mops_venc_device_run(void
> *priv)
> >  
> >  static int m2mops_venc_job_ready(void *m2m_priv)
> >  {
> > -struct mtk_vcodec_ctx *ctx = m2m_priv;
> > +struct mtk_vcodec_enc_ctx *ctx = m2m_priv;
> >  
> >  if (ctx->state == MTK_STATE_ABORT || ctx->state == MTK_STATE_FREE)
> {
> >  mtk_v4l2_venc_dbg(3, ctx, "[%d]Not ready: state=0x%x.", ctx->id,
> ctx->state);
> > @@ -1261,7 +1261,7 @@ static int m2mops_venc_job_ready(void
> *m2m_priv)
> >  
> >  static void m2mops_venc_job_abort(void *priv)
> >  {
> > -struct mtk_vcodec_ctx *ctx = priv;
> > +struct mtk_vcodec_enc_ctx *ctx = priv;
> >  
> >  ctx->state = MTK_STATE_ABORT;
> >  }
> > @@ -1272,7 +1272,7 @@ const struct v4l2_m2m_ops mtk_venc_m2m_ops =
> {
> >  .job_abort= m2mops_venc_job_abort,
> >  };
> >  
> > -void mtk_vcodec_enc_set_default_params(struct mtk_vcodec_ctx *ctx)
> > +void mtk_vcodec_enc_set_default_params(struct mtk_vcodec_enc_ctx
> *ctx)
> >  {
> >  struct mtk_q_data *q_data;
> >  
> > @@ -1333,7 +1333,7 @@ void mtk_vcodec_enc_set_default_params(struct
> mtk_vcodec_ctx *ctx)
> >  ctx->enc_params.framerate_denom = MTK_DEFAULT_FRAMERATE_DENOM;
> >  }
> >  
> > -int mtk_vcodec_enc_ctrls_setup(struct mtk_vcodec_ctx *ctx)
> > +int mtk_vcodec_enc_ctrls_setup(struct mtk_vcodec_enc_ctx *ctx)
> >  {
> >  const struct v4l2_ctrl_ops *ops = &mtk_vcodec_enc_ctrl_ops;
> >  struct v4l2_ctrl_handler *handler = &ctx->ctrl_hdl;
> > @@ -1399,7 +1399,7 @@ int mtk_vcodec_enc_ctrls_setup(struct
> mtk_vcodec_ctx *ctx)
> >  int mtk_vcodec_enc_queue_init(void *priv, struct vb2_queue
> *src_vq,
> >        struct vb2_queue *dst_vq)
> >  {
> > -struct mtk_vcodec_ctx *ctx = priv;
> > +struct mtk_vcodec_enc_ctx *ctx = priv;
> >  int ret;
> >  
> >  /* Note: VB2_USERPTR works with dma-contig because mt8173
> > @@ -1434,7 +1434,7 @@ int mtk_vcodec_enc_queue_init(void *priv,
> struct vb2_queue *src_vq,
> >  return vb2_queue_init(dst_vq);
> >  }
> >  
> > -int mtk_venc_unlock(struct mtk_vcodec_ctx *ctx)
> > +int mtk_venc_unlock(struct mtk_vcodec_enc_ctx *ctx)
> >  {
> >  struct mtk_vcodec_dev *dev = ctx->dev;
> >  
> > @@ -1442,7 +1442,7 @@ int mtk_venc_unlock(struct mtk_vcodec_ctx
> *ctx)
> >  return 0;
> >  }
> >  
> > -int mtk_venc_lock(struct mtk_vcodec_ctx *ctx)
> > +int mtk_venc_lock(struct mtk_vcodec_enc_ctx *ctx)
> >  {
> >  struct mtk_vcodec_dev *dev = ctx->dev;
> >  
> > @@ -1450,7 +1450,7 @@ int mtk_venc_lock(struct mtk_vcodec_ctx *ctx)
> >  return 0;
> >  }
> >  
> > -void mtk_vcodec_enc_release(struct mtk_vcodec_ctx *ctx)
> > +void mtk_vcodec_enc_release(struct mtk_vcodec_enc_ctx *ctx)
> >  {
> >  int ret = venc_if_deinit(ctx);
> >  
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc.h
> > index 513ee7993e34..82246401ed4a 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc.h
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc.h
> > @@ -11,6 +11,8 @@
> >  #include <media/videobuf2-core.h>
> >  #include <media/v4l2-mem2mem.h>
> >  
> > +#include "mtk_vcodec_enc_drv.h"
> > +
> >  #define MTK_VENC_IRQ_STATUS_SPS0x1
> >  #define MTK_VENC_IRQ_STATUS_PPS0x2
> >  #define MTK_VENC_IRQ_STATUS_FRM0x4
> > @@ -39,12 +41,12 @@ struct mtk_video_enc_buf {
> >  extern const struct v4l2_ioctl_ops mtk_venc_ioctl_ops;
> >  extern const struct v4l2_m2m_ops mtk_venc_m2m_ops;
> >  
> > -int mtk_venc_unlock(struct mtk_vcodec_ctx *ctx);
> > -int mtk_venc_lock(struct mtk_vcodec_ctx *ctx);
> > +int mtk_venc_unlock(struct mtk_vcodec_enc_ctx *ctx);
> > +int mtk_venc_lock(struct mtk_vcodec_enc_ctx *ctx);
> >  int mtk_vcodec_enc_queue_init(void *priv, struct vb2_queue
> *src_vq,
> >        struct vb2_queue *dst_vq);
> > -void mtk_vcodec_enc_release(struct mtk_vcodec_ctx *ctx);
> > -int mtk_vcodec_enc_ctrls_setup(struct mtk_vcodec_ctx *ctx);
> > -void mtk_vcodec_enc_set_default_params(struct mtk_vcodec_ctx
> *ctx);
> > +void mtk_vcodec_enc_release(struct mtk_vcodec_enc_ctx *ctx);
> > +int mtk_vcodec_enc_ctrls_setup(struct mtk_vcodec_enc_ctx *ctx);
> > +void mtk_vcodec_enc_set_default_params(struct mtk_vcodec_enc_ctx
> *ctx);
> >  
> >  #endif /* _MTK_VCODEC_ENC_H_ */
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c
> > index cb1dcbcb16bb..c9b6ce9dfa2d 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c
> > @@ -86,13 +86,13 @@ static void clean_irq_status(unsigned int
> irq_status, void __iomem *addr)
> >  static irqreturn_t mtk_vcodec_enc_irq_handler(int irq, void *priv)
> >  {
> >  struct mtk_vcodec_dev *dev = priv;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_enc_ctx *ctx;
> >  unsigned long flags;
> >  void __iomem *addr;
> >  int core_id;
> >  
> >  spin_lock_irqsave(&dev->irqlock, flags);
> > -ctx = dev->curr_ctx;
> > +ctx = dev->curr_enc_ctx;
> >  spin_unlock_irqrestore(&dev->irqlock, flags);
> >  
> >  core_id = dev->venc_pdata->core_id;
> > @@ -110,14 +110,14 @@ static irqreturn_t
> mtk_vcodec_enc_irq_handler(int irq, void *priv)
> >  
> >  clean_irq_status(ctx->irq_status, addr);
> >  
> > -wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED, 0);
> > +wake_up_enc_ctx(ctx, MTK_INST_IRQ_RECEIVED, 0);
> >  return IRQ_HANDLED;
> >  }
> >  
> >  static int fops_vcodec_open(struct file *file)
> >  {
> >  struct mtk_vcodec_dev *dev = video_drvdata(file);
> > -struct mtk_vcodec_ctx *ctx = NULL;
> > +struct mtk_vcodec_enc_ctx *ctx = NULL;
> >  int ret = 0;
> >  struct vb2_queue *src_vq;
> >  
> > @@ -204,7 +204,7 @@ static int fops_vcodec_open(struct file *file)
> >  static int fops_vcodec_release(struct file *file)
> >  {
> >  struct mtk_vcodec_dev *dev = video_drvdata(file);
> > -struct mtk_vcodec_ctx *ctx = fh_to_ctx(file->private_data);
> > +struct mtk_vcodec_enc_ctx *ctx = fh_to_enc_ctx(file-
> >private_data);
> >  
> >  mtk_v4l2_venc_dbg(1, ctx, "[%d] encoder", ctx->id);
> >  mutex_lock(&dev->dev_mutex);
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.h
> > new file mode 100644
> > index 000000000000..6aa4afe5b796
> > --- /dev/null
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.h
> > @@ -0,0 +1,158 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Copyright (c) 2023 MediaTek Inc.
> > + * Author: Yunfei Dong <yunfei.dong@...iatek.com>
> > + */
> > +
> > +#ifndef _MTK_VCODEC_ENC_DRV_H_
> > +#define _MTK_VCODEC_ENC_DRV_H_
> > +
> > +#include "mtk_vcodec_com_drv.h"
> > +#include "mtk_vcodec_fw_priv.h"
> > +
> > +/*
> > + * enum mtk_encode_param - General encoding parameters type
> > + */
> > +enum mtk_encode_param {
> > +MTK_ENCODE_PARAM_NONE = 0,
> > +MTK_ENCODE_PARAM_BITRATE = (1 << 0),
> > +MTK_ENCODE_PARAM_FRAMERATE = (1 << 1),
> > +MTK_ENCODE_PARAM_INTRA_PERIOD = (1 << 2),
> > +MTK_ENCODE_PARAM_FORCE_INTRA = (1 << 3),
> > +MTK_ENCODE_PARAM_GOP_SIZE = (1 << 4),
> > +};
> > +
> > +/**
> > + * struct mtk_enc_params - General encoding parameters
> > + * @bitrate: target bitrate in bits per second
> > + * @num_b_frame: number of b frames between p-frame
> > + * @rc_frame: frame based rate control
> > + * @rc_mb: macroblock based rate control
> > + * @seq_hdr_mode: H.264 sequence header is encoded separately or
> joined
> > + *  with the first frame
> > + * @intra_period: I frame period
> > + * @gop_size: group of picture size, it's used as the intra frame
> period
> > + * @framerate_num: frame rate numerator. ex: framerate_num=30 and
> > + *   framerate_denom=1 means FPS is 30
> > + * @framerate_denom: frame rate denominator. ex: framerate_num=30
> and
> > + *     framerate_denom=1 means FPS is 30
> > + * @h264_max_qp: Max value for H.264 quantization parameter
> > + * @h264_profile: V4L2 defined H.264 profile
> > + * @h264_level: V4L2 defined H.264 level
> > + * @force_intra: force/insert intra frame
> > + */
> > +struct mtk_enc_params {
> > +unsigned intbitrate;
> > +unsigned intnum_b_frame;
> > +unsigned intrc_frame;
> > +unsigned intrc_mb;
> > +unsigned intseq_hdr_mode;
> > +unsigned intintra_period;
> > +unsigned intgop_size;
> > +unsigned intframerate_num;
> > +unsigned intframerate_denom;
> > +unsigned inth264_max_qp;
> > +unsigned inth264_profile;
> > +unsigned inth264_level;
> > +unsigned intforce_intra;
> > +};
> > +
> > +/**
> > + * struct mtk_vcodec_enc_ctx - Context (instance) private data.
> > + *
> > + * @type: type of the instance - decoder or encoder
> 
> Similar to the decoder context, but this one can only be set to
> ENCODER and must
> stay first.
> 
Fixed in v5.

Best Regards,
Yunfei Dong
> > + * @dev: pointer to the mtk_vcodec_dev of the device
> > + * @list: link to ctx_list of mtk_vcodec_dev
> > + *
> > + * @fh: struct v4l2_fh
> > + * @m2m_ctx: pointer to the v4l2_m2m_ctx of the context
> > + * @q_data: store information of input and output queue
> > + *    of the context
> > + * @id: index of the context that this structure describes
> > + * @state: state of the context
> > + * @param_change: indicate encode parameter type
> > + * @enc_params: encoding parameters
> > + *
> > + * @enc_if: hooked encoder driver interface
> > + * @drv_handle: driver handle for specific decode/encode instance
> > + *
> > + * @int_cond: variable used by the waitqueue
> > + * @int_type: type of the last interrupt
> > + * @queue: waitqueue that can be used to wait for this context to
> > + *   finish
> > + * @irq_status: irq status
> > + *
> > + * @ctrl_hdl: handler for v4l2 framework
> > + * @encode_work: worker for the encoding
> > + * @empty_flush_buf: a fake size-0 capture buffer that indicates
> flush. Only
> > + *     to be used with encoder and stateful decoder.
> > + * @is_flushing: set to true if flushing is in progress.
> > + *
> > + * @colorspace: enum v4l2_colorspace; supplemental to pixelformat
> > + * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
> > + * @quantization: enum v4l2_quantization, colorspace quantization
> > + * @xfer_func: enum v4l2_xfer_func, colorspace transfer function
> > + *
> > + * @lock: protect variables accessed by V4L2 threads and worker
> thread such as
> > + *  mtk_video_dec_buf.
> > + * @hw_id: hardware index used to identify different hardware.
> > + *
> > + * @q_mutex: vb2_queue mutex.
> > + */
> > +struct mtk_vcodec_enc_ctx {
> > +enum mtk_instance_type type;
> > +struct mtk_vcodec_dev *dev;
> > +struct list_head list;
> > +
> > +struct v4l2_fh fh;
> > +struct v4l2_m2m_ctx *m2m_ctx;
> > +struct mtk_q_data q_data[2];
> > +int id;
> > +enum mtk_instance_state state;
> > +enum mtk_encode_param param_change;
> > +struct mtk_enc_params enc_params;
> > +
> > +const struct venc_common_if *enc_if;
> > +void *drv_handle;
> > +
> > +int int_cond[MTK_VDEC_HW_MAX];
> > +int int_type[MTK_VDEC_HW_MAX];
> > +wait_queue_head_t queue[MTK_VDEC_HW_MAX];
> > +unsigned int irq_status;
> > +
> > +struct v4l2_ctrl_handler ctrl_hdl;
> > +struct work_struct encode_work;
> > +struct v4l2_m2m_buffer empty_flush_buf;
> > +bool is_flushing;
> > +
> > +enum v4l2_colorspace colorspace;
> > +enum v4l2_ycbcr_encoding ycbcr_enc;
> > +enum v4l2_quantization quantization;
> > +enum v4l2_xfer_func xfer_func;
> > +
> > +struct mutex lock;
> > +int hw_id;
> > +
> > +struct mutex q_mutex;
> > +};
> > +
> > +static inline struct mtk_vcodec_enc_ctx *fh_to_enc_ctx(struct
> v4l2_fh *fh)
> > +{
> > +return container_of(fh, struct mtk_vcodec_enc_ctx, fh);
> > +}
> > +
> > +static inline struct mtk_vcodec_enc_ctx *ctrl_to_enc_ctx(struct
> v4l2_ctrl *ctrl)
> > +{
> > +return container_of(ctrl->handler, struct mtk_vcodec_enc_ctx,
> ctrl_hdl);
> > +}
> > +
> > +/* Wake up context wait_queue */
> > +static inline void
> > +wake_up_enc_ctx(struct mtk_vcodec_enc_ctx *ctx, unsigned int
> reason, unsigned int hw_id)
> > +{
> > +ctx->int_cond[hw_id] = 1;
> > +ctx->int_type[hw_id] = reason;
> > +wake_up_interruptible(&ctx->queue[hw_id]);
> > +}
> > +
> > +#endif /* _MTK_VCODEC_ENC_DRV_H_ */
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_vpu.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_vpu.c
> > index ee6846886dd6..571072dffbfa 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_vpu.c
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_vpu.c
> > @@ -51,10 +51,25 @@ static void mtk_vcodec_vpu_release(struct
> mtk_vcodec_fw *fw)
> >  put_device(&fw->pdev->dev);
> >  }
> >  
> > -static void mtk_vcodec_vpu_reset_handler(void *priv)
> > +static void mtk_vcodec_vpu_reset_dec_handler(void *priv)
> >  {
> >  struct mtk_vcodec_dev *dev = priv;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> > +
> > +dev_err(&dev->plat_dev->dev, "Watchdog timeout!!");
> > +
> > +mutex_lock(&dev->dev_mutex);
> > +list_for_each_entry(ctx, &dev->ctx_list, list) {
> > +ctx->state = MTK_STATE_ABORT;
> > +mtk_v4l2_vdec_dbg(0, ctx, "[%d] Change to state MTK_STATE_ABORT",
> ctx->id);
> > +}
> > +mutex_unlock(&dev->dev_mutex);
> > +}
> > +
> > +static void mtk_vcodec_vpu_reset_enc_handler(void *priv)
> > +{
> > +struct mtk_vcodec_dev *dev = priv;
> > +struct mtk_vcodec_enc_ctx *ctx;
> >  
> >  dev_err(&dev->plat_dev->dev, "Watchdog timeout!!");
> >  
> > @@ -84,14 +99,13 @@ struct mtk_vcodec_fw
> *mtk_vcodec_fw_vpu_init(void *priv, enum mtk_vcodec_fw_use
> >  struct mtk_vcodec_fw *fw;
> >  enum rst_id rst_id;
> >  
> > -switch (fw_use) {
> > -case ENCODER:
> > +if (fw_use == ENCODER) {
> >  rst_id = VPU_RST_ENC;
> > -break;
> > -case DECODER:
> > -default:
> > +} else if (fw_use == DECODER) {
> >  rst_id = VPU_RST_DEC;
> > -break;
> > +} else {
> > +pr_err("Invalid fw_use %d (use a resonable fw id here)\n",
> fw_use);
> > +return ERR_PTR(-EINVAL);
> >  }
> >  
> >  plat_dev = dev->plat_dev;
> > @@ -101,7 +115,10 @@ struct mtk_vcodec_fw
> *mtk_vcodec_fw_vpu_init(void *priv, enum mtk_vcodec_fw_use
> >  return ERR_PTR(-EINVAL);
> >  }
> >  
> > -vpu_wdt_reg_handler(fw_pdev, mtk_vcodec_vpu_reset_handler, dev,
> rst_id);
> > +if (fw_use == DECODER)
> > +vpu_wdt_reg_handler(fw_pdev, mtk_vcodec_vpu_reset_dec_handler,
> priv, rst_id);
> > +else
> > +vpu_wdt_reg_handler(fw_pdev, mtk_vcodec_vpu_reset_enc_handler,
> priv, rst_id);
> >  
> >  fw = devm_kzalloc(&plat_dev->dev, sizeof(*fw), GFP_KERNEL);
> >  if (!fw)
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_intr.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_intr.c
> > index 5a06be55915b..66d1f50d8968 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_intr.c
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_intr.c
> > @@ -14,17 +14,34 @@
> >  int mtk_vcodec_wait_for_done_ctx(void *priv, int command, unsigned
> int timeout_ms,
> >   unsigned int hw_id)
> >  {
> > -struct mtk_vcodec_ctx *ctx = priv;
> > +int instance_type = *((int *)priv);
> >  long timeout_jiff, ret;
> >  int status = 0, ctx_id, ctx_type;
> >  int *ctx_int_cond, *ctx_int_type;
> >  wait_queue_head_t *ctx_queue;
> > +struct platform_device *pdev;
> >  
> > -ctx_id = ctx->id;
> > -ctx_type = ctx->type;
> > -ctx_int_cond = ctx->int_cond;
> > -ctx_int_type = ctx->int_type;
> > -ctx_queue = ctx->queue;
> > +if (instance_type == DECODER) {
> > +struct mtk_vcodec_dec_ctx *ctx;
> > +ctx = priv;
> > +
> > +ctx_id = ctx->id;
> > +ctx_type = ctx->type;
> > +ctx_int_cond = ctx->int_cond;
> > +ctx_int_type = ctx->int_type;
> > +ctx_queue = ctx->queue;
> > +pdev = ctx->dev->plat_dev;
> > +} else {
> > +struct mtk_vcodec_enc_ctx *ctx;
> > +ctx = priv;
> > +
> > +ctx_id = ctx->id;
> > +ctx_type = ctx->type;
> > +ctx_int_cond = ctx->int_cond;
> > +ctx_int_type = ctx->int_type;
> > +ctx_queue = ctx->queue;
> > +pdev = ctx->dev->plat_dev;
> > +}
> >  
> >  timeout_jiff = msecs_to_jiffies(timeout_ms);
> >  ret = wait_event_interruptible_timeout(ctx_queue[hw_id],
> > @@ -33,12 +50,12 @@ int mtk_vcodec_wait_for_done_ctx(void *priv,
> int command, unsigned int timeout_m
> >  
> >  if (!ret) {
> >  status = -1;/* timeout */
> > -dev_err(&ctx->dev->plat_dev->dev, "[%d] cmd=%d, type=%d, dec
> timeout=%ums (%d %d)",
> > +dev_err(&pdev->dev, "[%d] cmd=%d, type=%d, dec timeout=%ums (%d
> %d)",
> >  ctx_id, command, ctx_type, timeout_ms,
> >  ctx_int_cond[hw_id], ctx_int_type[hw_id]);
> >  } else if (-ERESTARTSYS == ret) {
> >  status = -1;
> > -dev_err(&ctx->dev->plat_dev->dev, "[%d] cmd=%d, type=%d, dec inter
> fail (%d %d)",
> > +dev_err(&pdev->dev, "[%d] cmd=%d, type=%d, dec inter fail (%d
> %d)",
> >  ctx_id, command, ctx_type,
> >  ctx_int_cond[hw_id], ctx_int_type[hw_id]);
> >  }
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_intr.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_intr.h
> > index 11bf0ef94d5d..3e3cc71ee572 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_intr.h
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_intr.h
> > @@ -9,7 +9,8 @@
> >  
> >  #define MTK_INST_IRQ_RECEIVED0x1
> >  
> > -struct mtk_vcodec_ctx;
> > +struct mtk_vcodec_dec_ctx;
> > +struct mtk_vcodec_enc_ctx;
> >  
> >  /* timeout is ms */
> >  int mtk_vcodec_wait_for_done_ctx(void *priv, int command, unsigned
> int timeout_ms,
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_util.c
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_util.c
> > index 4e524594df4a..adaeae79558a 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_util.c
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_util.c
> > @@ -34,7 +34,7 @@ EXPORT_SYMBOL(mtk_vcodec_get_reg_addr);
> >  int mtk_vcodec_mem_alloc(void *priv, struct mtk_vcodec_mem *mem)
> >  {
> >  unsigned long size = mem->size;
> > -struct mtk_vcodec_ctx *ctx = priv;
> > +struct mtk_vcodec_dec_ctx *ctx = priv;
> >  struct device *dev = &ctx->dev->plat_dev->dev;
> >  
> >  mem->va = dma_alloc_coherent(dev, size, &mem->dma_addr,
> GFP_KERNEL);
> > @@ -55,7 +55,7 @@ EXPORT_SYMBOL(mtk_vcodec_mem_alloc);
> >  void mtk_vcodec_mem_free(void *priv, struct mtk_vcodec_mem *mem)
> >  {
> >  unsigned long size = mem->size;
> > -struct mtk_vcodec_ctx *ctx = priv;
> > +struct mtk_vcodec_dec_ctx *ctx = priv;
> >  struct device *dev = &ctx->dev->plat_dev->dev;
> >  
> >  if (!mem->va) {
> > @@ -87,7 +87,7 @@ void *mtk_vcodec_get_hw_dev(struct mtk_vcodec_dev
> *dev, int hw_idx)
> >  EXPORT_SYMBOL(mtk_vcodec_get_hw_dev);
> >  
> >  void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
> > -     struct mtk_vcodec_ctx *ctx, int hw_idx)
> > +     struct mtk_vcodec_dec_ctx *ctx, int hw_idx)
> >  {
> >  unsigned long flags;
> >  struct mtk_vdec_hw_dev *subdev_dev;
> > @@ -108,11 +108,11 @@ void mtk_vcodec_set_curr_ctx(struct
> mtk_vcodec_dev *vdec_dev,
> >  }
> >  EXPORT_SYMBOL(mtk_vcodec_set_curr_ctx);
> >  
> > -struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct
> mtk_vcodec_dev *vdec_dev,
> > -       unsigned int hw_idx)
> > +struct mtk_vcodec_dec_ctx *mtk_vcodec_get_curr_ctx(struct
> mtk_vcodec_dev *vdec_dev,
> > +   unsigned int hw_idx)
> >  {
> >  unsigned long flags;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct mtk_vdec_hw_dev *subdev_dev;
> >  
> >  spin_lock_irqsave(&vdec_dev->irqlock, flags);
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_util.h
> b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_util.h
> > index e68323ce8eeb..4d48b516f62d 100644
> > --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_util.h
> > +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_util.h
> > @@ -22,7 +22,7 @@ struct mtk_vcodec_fb {
> >  dma_addr_t dma_addr;
> >  };
> >  
> > -struct mtk_vcodec_ctx;
> > +struct mtk_vcodec_dec_ctx;
> >  struct mtk_vcodec_dev;
> >  
> >  #undef pr_fmt
> > @@ -84,9 +84,9 @@ void __iomem *mtk_vcodec_get_reg_addr(void
> __iomem **reg_base, unsigned int reg_
> >  int mtk_vcodec_mem_alloc(void *priv, struct mtk_vcodec_mem *mem);
> >  void mtk_vcodec_mem_free(void *priv, struct mtk_vcodec_mem *mem);
> >  void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
> > -     struct mtk_vcodec_ctx *ctx, int hw_idx);
> > -struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct
> mtk_vcodec_dev *vdec_dev,
> > -       unsigned int hw_idx);
> > +     struct mtk_vcodec_dec_ctx *ctx, int hw_idx);
> > +struct mtk_vcodec_dec_ctx *mtk_vcodec_get_curr_ctx(struct
> mtk_vcodec_dev *vdec_dev,
> > +   unsigned int hw_idx);
> >  void *mtk_vcodec_get_hw_dev(struct mtk_vcodec_dev *dev, int
> hw_idx);
> >  
> >  #endif /* _MTK_VCODEC_UTIL_H_ */
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_av1_req_lat_if.c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_av1_req_lat_if.c
> > index fcfc673ca58b..96ed4bec169e 100644
> > ---
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_av1_req_lat_if.c
> > +++
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_av1_req_lat_if.c
> > @@ -706,7 +706,7 @@ struct vdec_av1_slice_pfc {
> >   * @seq:                global picture sequence
> >   */
> >  struct vdec_av1_slice_instance {
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct vdec_vpu_inst vpu;
> >  
> >  struct mtk_vcodec_mem iq_table;
> > @@ -756,7 +756,7 @@ static inline bool
> vdec_av1_slice_need_scale(u32 ref_width, u32 ref_height,
> >  (this_height <= (ref_height << 4));
> >  }
> >  
> > -static void *vdec_av1_get_ctrl_ptr(struct mtk_vcodec_ctx *ctx, int
> id)
> > +static void *vdec_av1_get_ctrl_ptr(struct mtk_vcodec_dec_ctx *ctx,
> int id)
> >  {
> >  struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, id);
> >  
> > @@ -769,7 +769,7 @@ static void *vdec_av1_get_ctrl_ptr(struct
> mtk_vcodec_ctx *ctx, int id)
> >  static int vdec_av1_slice_init_cdf_table(struct
> vdec_av1_slice_instance *instance)
> >  {
> >  u8 *remote_cdf_table;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct vdec_av1_slice_init_vsi *vsi;
> >  int ret;
> >  
> > @@ -800,7 +800,7 @@ static int vdec_av1_slice_init_cdf_table(struct
> vdec_av1_slice_instance *instanc
> >  static int vdec_av1_slice_init_iq_table(struct
> vdec_av1_slice_instance *instance)
> >  {
> >  u8 *remote_iq_table;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct vdec_av1_slice_init_vsi *vsi;
> >  int ret;
> >  
> > @@ -937,7 +937,7 @@ static void vdec_av1_slice_setup_slot(struct
> vdec_av1_slice_instance *instance,
> >  static int vdec_av1_slice_alloc_working_buffer(struct
> vdec_av1_slice_instance *instance,
> >         struct vdec_av1_slice_vsi *vsi)
> >  {
> > -struct mtk_vcodec_ctx *ctx = instance->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = instance->ctx;
> >  enum vdec_av1_slice_resolution_level level;
> >  u32 max_sb_w, max_sb_h, max_w, max_h, w, h;
> >  int i, ret;
> > @@ -1020,7 +1020,7 @@ static int
> vdec_av1_slice_alloc_working_buffer(struct vdec_av1_slice_instance *i
> >  
> >  static void vdec_av1_slice_free_working_buffer(struct
> vdec_av1_slice_instance *instance)
> >  {
> > -struct mtk_vcodec_ctx *ctx = instance->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = instance->ctx;
> >  int i;
> >  
> >  for (i = 0; i < ARRAY_SIZE(instance->mv); i++)
> > @@ -1864,7 +1864,7 @@ static int vdec_av1_slice_update_core(struct
> vdec_av1_slice_instance *instance,
> >  return 0;
> >  }
> >  
> > -static int vdec_av1_slice_init(struct mtk_vcodec_ctx *ctx)
> > +static int vdec_av1_slice_init(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_av1_slice_instance *instance;
> >  struct vdec_av1_slice_init_vsi *vsi;
> > @@ -1962,7 +1962,7 @@ static int vdec_av1_slice_flush(void *h_vdec,
> struct mtk_vcodec_mem *bs,
> >  
> >  static void vdec_av1_slice_get_pic_info(struct
> vdec_av1_slice_instance *instance)
> >  {
> > -struct mtk_vcodec_ctx *ctx = instance->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = instance->ctx;
> >  u32 data[3];
> >  
> >  mtk_vdec_debug(ctx, "w %u h %u\n", ctx->picinfo.pic_w, ctx-
> >picinfo.pic_h);
> > @@ -1988,7 +1988,7 @@ static inline void
> vdec_av1_slice_get_dpb_size(struct vdec_av1_slice_instance *i
> >  static void vdec_av1_slice_get_crop_info(struct
> vdec_av1_slice_instance *instance,
> >   struct v4l2_rect *cr)
> >  {
> > -struct mtk_vcodec_ctx *ctx = instance->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = instance->ctx;
> >  
> >  cr->left = 0;
> >  cr->top = 0;
> > @@ -2028,7 +2028,7 @@ static int vdec_av1_slice_lat_decode(void
> *h_vdec, struct mtk_vcodec_mem *bs,
> >  struct vdec_lat_buf *lat_buf;
> >  struct vdec_av1_slice_pfc *pfc;
> >  struct vdec_av1_slice_vsi *vsi;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  int ret;
> >  
> >  if (!instance || !instance->ctx)
> > @@ -2128,7 +2128,7 @@ static int vdec_av1_slice_core_decode(struct
> vdec_lat_buf *lat_buf)
> >  {
> >  struct vdec_av1_slice_instance *instance;
> >  struct vdec_av1_slice_pfc *pfc;
> > -struct mtk_vcodec_ctx *ctx = NULL;
> > +struct mtk_vcodec_dec_ctx *ctx = NULL;
> >  struct vdec_fb *fb = NULL;
> >  int ret = -EINVAL;
> >  
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_if.c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_if.c
> > index ca5437ae37f6..69914e26cd20 100644
> > --- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_if.c
> > +++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_if.c
> > @@ -117,7 +117,7 @@ struct vdec_h264_vsi {
> >  /**
> >   * struct vdec_h264_inst - h264 decoder instance
> >   * @num_nalu : how many nalus be decoded
> > - * @ctx      : point to mtk_vcodec_ctx
> > + * @ctx      : point to mtk_vcodec_dec_ctx
> >   * @pred_buf : HW working predication buffer
> >   * @mv_buf   : HW working motion vector buffer
> >   * @vpu      : VPU instance
> > @@ -125,7 +125,7 @@ struct vdec_h264_vsi {
> >   */
> >  struct vdec_h264_inst {
> >  unsigned int num_nalu;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct mtk_vcodec_mem pred_buf;
> >  struct mtk_vcodec_mem mv_buf[H264_MAX_FB_NUM];
> >  struct vdec_vpu_inst vpu;
> > @@ -266,7 +266,7 @@ static void get_dpb_size(struct vdec_h264_inst
> *inst, unsigned int *dpb_sz)
> >  mtk_vdec_debug(inst->ctx, "sz=%d", *dpb_sz);
> >  }
> >  
> > -static int vdec_h264_init(struct mtk_vcodec_ctx *ctx)
> > +static int vdec_h264_init(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_h264_inst *inst = NULL;
> >  int err;
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.c
> > index 580ce979e2a3..5ca20d75dc8e 100644
> > ---
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.c
> > +++
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.c
> > @@ -33,7 +33,7 @@ void mtk_vdec_h264_get_ref_list(u8 *ref_list,
> >  memset(&ref_list[num_valid], 0x20, 32 - num_valid);
> >  }
> >  
> > -void *mtk_vdec_h264_get_ctrl_ptr(struct mtk_vcodec_ctx *ctx, int
> id)
> > +void *mtk_vdec_h264_get_ctrl_ptr(struct mtk_vcodec_dec_ctx *ctx,
> int id)
> >  {
> >  struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, id);
> >  
> > @@ -43,7 +43,7 @@ void *mtk_vdec_h264_get_ctrl_ptr(struct
> mtk_vcodec_ctx *ctx, int id)
> >  return ctrl->p_cur.p;
> >  }
> >  
> > -void mtk_vdec_h264_fill_dpb_info(struct mtk_vcodec_ctx *ctx,
> > +void mtk_vdec_h264_fill_dpb_info(struct mtk_vcodec_dec_ctx *ctx,
> >   struct slice_api_h264_decode_param *decode_params,
> >   struct mtk_h264_dpb_info *h264_dpb_info)
> >  {
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.h
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.h
> > index 53d0a7c962a9..0dda9e2315c0 100644
> > ---
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.h
> > +++
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.h
> > @@ -182,7 +182,7 @@ void mtk_vdec_h264_get_ref_list(u8 *ref_list,
> >   *
> >   * Return: returns CID ctrl address.
> >   */
> > -void *mtk_vdec_h264_get_ctrl_ptr(struct mtk_vcodec_ctx *ctx, int
> id);
> > +void *mtk_vdec_h264_get_ctrl_ptr(struct mtk_vcodec_dec_ctx *ctx,
> int id);
> >  
> >  /**
> >   * mtk_vdec_h264_fill_dpb_info - get each CID contrl address.
> > @@ -191,7 +191,7 @@ void *mtk_vdec_h264_get_ctrl_ptr(struct
> mtk_vcodec_ctx *ctx, int id);
> >   * @decode_params:slice decode params
> >   * @h264_dpb_info:dpb buffer information
> >   */
> > -void mtk_vdec_h264_fill_dpb_info(struct mtk_vcodec_ctx *ctx,
> > +void mtk_vdec_h264_fill_dpb_info(struct mtk_vcodec_dec_ctx *ctx,
> >   struct slice_api_h264_decode_param *decode_params,
> >   struct mtk_h264_dpb_info *h264_dpb_info);
> >  
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
> > index bdff1d2feb1c..4eb98a705be4 100644
> > ---
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
> > +++
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
> > @@ -74,7 +74,7 @@ struct vdec_h264_vsi {
> >  /**
> >   * struct vdec_h264_slice_inst - h264 decoder instance
> >   * @num_nalu : how many nalus be decoded
> > - * @ctx      : point to mtk_vcodec_ctx
> > + * @ctx      : point to mtk_vcodec_dec_ctx
> >   * @pred_buf : HW working predication buffer
> >   * @mv_buf   : HW working motion vector buffer
> >   * @vpu      : VPU instance
> > @@ -84,7 +84,7 @@ struct vdec_h264_vsi {
> >   */
> >  struct vdec_h264_slice_inst {
> >  unsigned int num_nalu;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct mtk_vcodec_mem pred_buf;
> >  struct mtk_vcodec_mem mv_buf[H264_MAX_MV_NUM];
> >  struct vdec_vpu_inst vpu;
> > @@ -220,7 +220,7 @@ static void free_mv_buf(struct
> vdec_h264_slice_inst *inst)
> >  static void get_pic_info(struct vdec_h264_slice_inst *inst,
> >   struct vdec_pic_info *pic)
> >  {
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
> >  
> >  ctx->picinfo.buf_w = ALIGN(ctx->picinfo.pic_w,
> VCODEC_DEC_ALIGNED_64);
> >  ctx->picinfo.buf_h = ALIGN(ctx->picinfo.pic_h,
> VCODEC_DEC_ALIGNED_64);
> > @@ -269,7 +269,7 @@ static void get_dpb_size(struct
> vdec_h264_slice_inst *inst, unsigned int *dpb_sz
> >  mtk_vdec_debug(inst->ctx, "sz=%d", *dpb_sz);
> >  }
> >  
> > -static int vdec_h264_slice_init(struct mtk_vcodec_ctx *ctx)
> > +static int vdec_h264_slice_init(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_h264_slice_inst *inst;
> >  int err;
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.
> c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.
> c
> > index 1c2389e63e4c..846cc39c0168 100644
> > ---
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.
> c
> > +++
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.
> c
> > @@ -133,7 +133,7 @@ struct vdec_h264_slice_share_info {
> >   * struct vdec_h264_slice_inst - h264 decoder instance
> >   *
> >   * @slice_dec_num:how many picture be decoded
> > - * @ctx:point to mtk_vcodec_ctx
> > + * @ctx:point to mtk_vcodec_dec_ctx
> >   * @pred_buf:HW working predication buffer
> >   * @mv_buf:HW working motion vector buffer
> >   * @vpu:VPU instance
> > @@ -153,7 +153,7 @@ struct vdec_h264_slice_share_info {
> >   */
> >  struct vdec_h264_slice_inst {
> >  unsigned int slice_dec_num;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct mtk_vcodec_mem pred_buf;
> >  struct mtk_vcodec_mem mv_buf[H264_MAX_MV_NUM];
> >  struct vdec_vpu_inst vpu;
> > @@ -344,7 +344,7 @@ static void vdec_h264_slice_free_mv_buf(struct
> vdec_h264_slice_inst *inst)
> >  
> >  static void vdec_h264_slice_get_pic_info(struct
> vdec_h264_slice_inst *inst)
> >  {
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
> >  u32 data[3];
> >  
> >  data[0] = ctx->picinfo.pic_w;
> > @@ -393,7 +393,7 @@ static void
> vdec_h264_slice_get_crop_info(struct vdec_h264_slice_inst *inst,
> >         cr->left, cr->top, cr->width, cr->height);
> >  }
> >  
> > -static int vdec_h264_slice_init(struct mtk_vcodec_ctx *ctx)
> > +static int vdec_h264_slice_init(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_h264_slice_inst *inst;
> >  int err, vsi_size;
> > @@ -457,7 +457,7 @@ static int vdec_h264_slice_core_decode(struct
> vdec_lat_buf *lat_buf)
> >  u64 vdec_fb_va;
> >  u64 y_fb_dma, c_fb_dma;
> >  int err, timeout, i;
> > -struct mtk_vcodec_ctx *ctx = lat_buf->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = lat_buf->ctx;
> >  struct vdec_h264_slice_inst *inst = ctx->drv_handle;
> >  struct vb2_v4l2_buffer *vb2_v4l2;
> >  struct vdec_h264_slice_share_info *share_info = lat_buf-
> >private_data;
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.
> c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.
> c
> > index aa32b7cbf6f1..67a5f8b82eb8 100644
> > ---
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.
> c
> > +++
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.
> c
> > @@ -344,7 +344,7 @@ struct vdec_hevc_slice_share_info {
> >   * struct vdec_hevc_slice_inst - hevc decoder instance
> >   *
> >   * @slice_dec_num:      how many picture be decoded
> > - * @ctx:                point to mtk_vcodec_ctx
> > + * @ctx:                point to mtk_vcodec_dec_ctx
> >   * @mv_buf:             HW working motion vector buffer
> >   * @vpu:                VPU instance
> >   * @vsi:                vsi used for lat
> > @@ -359,7 +359,7 @@ struct vdec_hevc_slice_share_info {
> >   */
> >  struct vdec_hevc_slice_inst {
> >  unsigned int slice_dec_num;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct mtk_vcodec_mem mv_buf[HEVC_MAX_MV_NUM];
> >  struct vdec_vpu_inst vpu;
> >  struct vdec_hevc_slice_vsi *vsi;
> > @@ -380,7 +380,7 @@ static unsigned int
> vdec_hevc_get_mv_buf_size(unsigned int width, unsigned int h
> >  return 64 * unit_size;
> >  }
> >  
> > -static void *vdec_hevc_get_ctrl_ptr(struct mtk_vcodec_ctx *ctx,
> int id)
> > +static void *vdec_hevc_get_ctrl_ptr(struct mtk_vcodec_dec_ctx
> *ctx, int id)
> >  {
> >  struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, id);
> >  
> > @@ -390,7 +390,7 @@ static void *vdec_hevc_get_ctrl_ptr(struct
> mtk_vcodec_ctx *ctx, int id)
> >  return ctrl->p_cur.p;
> >  }
> >  
> > -static void vdec_hevc_fill_dpb_info(struct mtk_vcodec_ctx *ctx,
> > +static void vdec_hevc_fill_dpb_info(struct mtk_vcodec_dec_ctx
> *ctx,
> >      struct slice_api_hevc_decode_param *decode_params,
> >      struct mtk_hevc_dpb_info *hevc_dpb_info)
> >  {
> > @@ -679,7 +679,7 @@ static void vdec_hevc_slice_free_mv_buf(struct
> vdec_hevc_slice_inst *inst)
> >  
> >  static void vdec_hevc_slice_get_pic_info(struct
> vdec_hevc_slice_inst *inst)
> >  {
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
> >  u32 data[3];
> >  
> >  data[0] = ctx->picinfo.pic_w;
> > @@ -798,7 +798,7 @@ static int
> vdec_hevc_slice_setup_core_buffer(struct vdec_hevc_slice_inst *inst,
> >       struct vdec_lat_buf *lat_buf)
> >  {
> >  struct mtk_vcodec_mem *mem;
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
> >  struct vb2_v4l2_buffer *vb2_v4l2;
> >  struct vdec_fb *fb;
> >  u64 y_fb_dma, c_fb_dma;
> > @@ -853,7 +853,7 @@ static int
> vdec_hevc_slice_setup_core_buffer(struct vdec_hevc_slice_inst *inst,
> >  return 0;
> >  }
> >  
> > -static int vdec_hevc_slice_init(struct mtk_vcodec_ctx *ctx)
> > +static int vdec_hevc_slice_init(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_hevc_slice_inst *inst;
> >  int err, vsi_size;
> > @@ -924,7 +924,7 @@ static void vdec_hevc_slice_deinit(void
> *h_vdec)
> >  static int vdec_hevc_slice_core_decode(struct vdec_lat_buf
> *lat_buf)
> >  {
> >  int err, timeout;
> > -struct mtk_vcodec_ctx *ctx = lat_buf->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = lat_buf->ctx;
> >  struct vdec_hevc_slice_inst *inst = ctx->drv_handle;
> >  struct vdec_hevc_slice_share_info *share_info = lat_buf-
> >private_data;
> >  struct vdec_vpu_inst *vpu = &inst->vpu;
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp8_if.c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp8_if.c
> > index 295cb2ee5c4a..a8606f74ddc1 100644
> > --- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp8_if.c
> > +++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp8_if.c
> > @@ -160,7 +160,7 @@ struct vdec_vp8_inst {
> >  struct mtk_vcodec_mem working_buf;
> >  struct vdec_vp8_hw_reg_base reg_base;
> >  unsigned int frm_cnt;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct vdec_vpu_inst vpu;
> >  struct vdec_vp8_vsi *vsi;
> >  };
> > @@ -388,7 +388,7 @@ static void free_working_buf(struct
> vdec_vp8_inst *inst)
> >  inst->vsi->dec.working_buf_dma = 0;
> >  }
> >  
> > -static int vdec_vp8_init(struct mtk_vcodec_ctx *ctx)
> > +static int vdec_vp8_init(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_vp8_inst *inst;
> >  int err;
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp8_req_if.c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp8_req_if.c
> > index 4193fe20bb92..d3103b877b61 100644
> > --- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp8_req_if.c
> > +++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp8_req_if.c
> > @@ -101,12 +101,12 @@ struct vdec_vp8_slice_inst {
> >  struct mtk_vcodec_mem wrap_y_buf;
> >  struct mtk_vcodec_mem wrap_c_buf;
> >  struct mtk_vcodec_mem vld_wrapper_buf;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct vdec_vpu_inst vpu;
> >  struct vdec_vp8_slice_vsi *vsi;
> >  };
> >  
> > -static void *vdec_vp8_slice_get_ctrl_ptr(struct mtk_vcodec_ctx
> *ctx, int id)
> > +static void *vdec_vp8_slice_get_ctrl_ptr(struct mtk_vcodec_dec_ctx
> *ctx, int id)
> >  {
> >  struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, id);
> >  
> > @@ -118,7 +118,7 @@ static void *vdec_vp8_slice_get_ctrl_ptr(struct
> mtk_vcodec_ctx *ctx, int id)
> >  
> >  static void vdec_vp8_slice_get_pic_info(struct vdec_vp8_slice_inst
> *inst)
> >  {
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
> >  unsigned int data[3];
> >  
> >  data[0] = ctx->picinfo.pic_w;
> > @@ -233,7 +233,7 @@ static u64 vdec_vp8_slice_get_ref_by_ts(const
> struct v4l2_ctrl_vp8_frame *frame_
> >  static int vdec_vp8_slice_get_decode_parameters(struct
> vdec_vp8_slice_inst *inst)
> >  {
> >  const struct v4l2_ctrl_vp8_frame *frame_header;
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
> >  struct vb2_queue *vq;
> >  struct vb2_buffer *vb;
> >  u64 referenct_ts;
> > @@ -272,7 +272,7 @@ static int
> vdec_vp8_slice_get_decode_parameters(struct vdec_vp8_slice_inst *inst
> >  return 0;
> >  }
> >  
> > -static int vdec_vp8_slice_init(struct mtk_vcodec_ctx *ctx)
> > +static int vdec_vp8_slice_init(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_vp8_slice_inst *inst;
> >  int err;
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_if.c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_if.c
> > index 62c2b3b021e6..d3493d36329d 100644
> > --- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_if.c
> > +++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_if.c
> > @@ -196,7 +196,7 @@ struct vdec_vp9_inst {
> >  struct list_head fb_free_list;
> >  struct list_head fb_disp_list;
> >  struct vdec_fb *cur_fb;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct vdec_vpu_inst vpu;
> >  struct vdec_vp9_vsi *vsi;
> >  unsigned int total_frm_cnt;
> > @@ -531,7 +531,7 @@ static void vp9_swap_frm_bufs(struct
> vdec_vp9_inst *inst)
> >  
> >  static bool vp9_wait_dec_end(struct vdec_vp9_inst *inst)
> >  {
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
> >  
> >  mtk_vcodec_wait_for_done_ctx(inst->ctx,
> >  MTK_INST_IRQ_RECEIVED,
> > @@ -543,7 +543,7 @@ static bool vp9_wait_dec_end(struct
> vdec_vp9_inst *inst)
> >  return false;
> >  }
> >  
> > -static struct vdec_vp9_inst *vp9_alloc_inst(struct mtk_vcodec_ctx
> *ctx)
> > +static struct vdec_vp9_inst *vp9_alloc_inst(struct
> mtk_vcodec_dec_ctx *ctx)
> >  {
> >  int result;
> >  struct mtk_vcodec_mem mem;
> > @@ -771,7 +771,7 @@ static void vdec_vp9_deinit(void *h_vdec)
> >  vp9_free_inst(inst);
> >  }
> >  
> > -static int vdec_vp9_init(struct mtk_vcodec_ctx *ctx)
> > +static int vdec_vp9_init(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_vp9_inst *inst;
> >  
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c
> > index 913077d6e701..106ee4daf00b 100644
> > ---
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c
> > +++
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c
> > @@ -445,7 +445,7 @@ struct vdec_vp9_slice_ref {
> >   * @counts_helper:counts table according to newest kernel spec
> >   */
> >  struct vdec_vp9_slice_instance {
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct vdec_vpu_inst vpu;
> >  
> >  int seq;
> > @@ -506,7 +506,7 @@ static int
> vdec_vp9_slice_init_default_frame_ctx(struct vdec_vp9_slice_instance
> >  {
> >  struct vdec_vp9_slice_frame_ctx *remote_frame_ctx;
> >  struct vdec_vp9_slice_frame_ctx *frame_ctx;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  struct vdec_vp9_slice_init_vsi *vsi;
> >  int ret = 0;
> >  
> > @@ -543,7 +543,7 @@ static int
> vdec_vp9_slice_init_default_frame_ctx(struct vdec_vp9_slice_instance
> >  static int vdec_vp9_slice_alloc_working_buffer(struct
> vdec_vp9_slice_instance *instance,
> >         struct vdec_vp9_slice_vsi *vsi)
> >  {
> > -struct mtk_vcodec_ctx *ctx = instance->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = instance->ctx;
> >  enum vdec_vp9_slice_resolution_level level;
> >  /* super blocks */
> >  unsigned int max_sb_w;
> > @@ -635,7 +635,7 @@ static int
> vdec_vp9_slice_alloc_working_buffer(struct vdec_vp9_slice_instance *i
> >  
> >  static void vdec_vp9_slice_free_working_buffer(struct
> vdec_vp9_slice_instance *instance)
> >  {
> > -struct mtk_vcodec_ctx *ctx = instance->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = instance->ctx;
> >  int i;
> >  
> >  for (i = 0; i < ARRAY_SIZE(instance->mv); i++) {
> > @@ -1850,7 +1850,7 @@ static int vdec_vp9_slice_update_core(struct
> vdec_vp9_slice_instance *instance,
> >  return 0;
> >  }
> >  
> > -static int vdec_vp9_slice_init(struct mtk_vcodec_ctx *ctx)
> > +static int vdec_vp9_slice_init(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_vp9_slice_instance *instance;
> >  struct vdec_vp9_slice_init_vsi *vsi;
> > @@ -1933,7 +1933,7 @@ static int vdec_vp9_slice_flush(void *h_vdec,
> struct mtk_vcodec_mem *bs,
> >  
> >  static void vdec_vp9_slice_get_pic_info(struct
> vdec_vp9_slice_instance *instance)
> >  {
> > -struct mtk_vcodec_ctx *ctx = instance->ctx;
> > +struct mtk_vcodec_dec_ctx *ctx = instance->ctx;
> >  unsigned int data[3];
> >  
> >  mtk_vdec_debug(instance->ctx, "w %u h %u\n", ctx->picinfo.pic_w,
> ctx->picinfo.pic_h);
> > @@ -1984,7 +1984,7 @@ static int vdec_vp9_slice_single_decode(void
> *h_vdec, struct mtk_vcodec_mem *bs,
> >  struct vdec_vp9_slice_instance *instance = h_vdec;
> >  struct vdec_vp9_slice_pfc *pfc = &instance->sc_pfc;
> >  struct vdec_vp9_slice_vsi *vsi;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  int ret;
> >  
> >  if (!instance || !instance->ctx)
> > @@ -2042,7 +2042,7 @@ static int vdec_vp9_slice_lat_decode(void
> *h_vdec, struct mtk_vcodec_mem *bs,
> >  struct vdec_lat_buf *lat_buf;
> >  struct vdec_vp9_slice_pfc *pfc;
> >  struct vdec_vp9_slice_vsi *vsi;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  int ret;
> >  
> >  if (!instance || !instance->ctx)
> > @@ -2137,7 +2137,7 @@ static int vdec_vp9_slice_core_decode(struct
> vdec_lat_buf *lat_buf)
> >  {
> >  struct vdec_vp9_slice_instance *instance;
> >  struct vdec_vp9_slice_pfc *pfc;
> > -struct mtk_vcodec_ctx *ctx = NULL;
> > +struct mtk_vcodec_dec_ctx *ctx = NULL;
> >  struct vdec_fb *fb = NULL;
> >  int ret = -EINVAL;
> >  
> > diff --git a/drivers/media/platform/mediatek/vcodec/vdec_drv_base.h
> b/drivers/media/platform/mediatek/vcodec/vdec_drv_base.h
> > index e913f963b7db..f6abb9365234 100644
> > --- a/drivers/media/platform/mediatek/vcodec/vdec_drv_base.h
> > +++ b/drivers/media/platform/mediatek/vcodec/vdec_drv_base.h
> > @@ -15,7 +15,7 @@ struct vdec_common_if {
> >   * @ctx     : [in] mtk v4l2 context
> >   * @h_vdec  : [out] driver handle
> >   */
> > -int (*init)(struct mtk_vcodec_ctx *ctx);
> > +int (*init)(struct mtk_vcodec_dec_ctx *ctx);
> >  
> >  /**
> >   * (*decode)() - trigger decode
> > diff --git a/drivers/media/platform/mediatek/vcodec/vdec_drv_if.c
> b/drivers/media/platform/mediatek/vcodec/vdec_drv_if.c
> > index e66faf50892b..d0b459b1603f 100644
> > --- a/drivers/media/platform/mediatek/vcodec/vdec_drv_if.c
> > +++ b/drivers/media/platform/mediatek/vcodec/vdec_drv_if.c
> > @@ -14,7 +14,7 @@
> >  #include "vdec_drv_base.h"
> >  #include "mtk_vcodec_dec_pm.h"
> >  
> > -int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
> > +int vdec_if_init(struct mtk_vcodec_dec_ctx *ctx, unsigned int
> fourcc)
> >  {
> >  enum mtk_vdec_hw_arch hw_arch = ctx->dev->vdec_pdata->hw_arch;
> >  int ret = 0;
> > @@ -68,7 +68,7 @@ int vdec_if_init(struct mtk_vcodec_ctx *ctx,
> unsigned int fourcc)
> >  return ret;
> >  }
> >  
> > -int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct
> mtk_vcodec_mem *bs,
> > +int vdec_if_decode(struct mtk_vcodec_dec_ctx *ctx, struct
> mtk_vcodec_mem *bs,
> >     struct vdec_fb *fb, bool *res_chg)
> >  {
> >  int ret = 0;
> > @@ -100,7 +100,7 @@ int vdec_if_decode(struct mtk_vcodec_ctx *ctx,
> struct mtk_vcodec_mem *bs,
> >  return ret;
> >  }
> >  
> > -int vdec_if_get_param(struct mtk_vcodec_ctx *ctx, enum
> vdec_get_param_type type,
> > +int vdec_if_get_param(struct mtk_vcodec_dec_ctx *ctx, enum
> vdec_get_param_type type,
> >        void *out)
> >  {
> >  int ret = 0;
> > @@ -115,7 +115,7 @@ int vdec_if_get_param(struct mtk_vcodec_ctx
> *ctx, enum vdec_get_param_type type,
> >  return ret;
> >  }
> >  
> > -void vdec_if_deinit(struct mtk_vcodec_ctx *ctx)
> > +void vdec_if_deinit(struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  if (!ctx->drv_handle)
> >  return;
> > diff --git a/drivers/media/platform/mediatek/vcodec/vdec_drv_if.h
> b/drivers/media/platform/mediatek/vcodec/vdec_drv_if.h
> > index a8da6a59a6a5..816ed6ab1ed0 100644
> > --- a/drivers/media/platform/mediatek/vcodec/vdec_drv_if.h
> > +++ b/drivers/media/platform/mediatek/vcodec/vdec_drv_if.h
> > @@ -69,14 +69,14 @@ extern const struct vdec_common_if
> vdec_av1_slice_lat_if;
> >   * @ctx: [in] v4l2 context
> >   * @fourcc: [in] video format fourcc, V4L2_PIX_FMT_H264/VP8/VP9..
> >   */
> > -int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc);
> > +int vdec_if_init(struct mtk_vcodec_dec_ctx *ctx, unsigned int
> fourcc);
> >  
> >  /**
> >   * vdec_if_deinit() - deinitialize decode driver
> >   * @ctx: [in] v4l2 context
> >   *
> >   */
> > -void vdec_if_deinit(struct mtk_vcodec_ctx *ctx);
> > +void vdec_if_deinit(struct mtk_vcodec_dec_ctx *ctx);
> >  
> >  /**
> >   * vdec_if_decode() - trigger decode
> > @@ -90,7 +90,7 @@ void vdec_if_deinit(struct mtk_vcodec_ctx *ctx);
> >   *
> >   * Return: 0 on success. -EIO on unrecoverable error.
> >   */
> > -int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct
> mtk_vcodec_mem *bs,
> > +int vdec_if_decode(struct mtk_vcodec_dec_ctx *ctx, struct
> mtk_vcodec_mem *bs,
> >     struct vdec_fb *fb, bool *res_chg);
> >  
> >  /**
> > @@ -99,7 +99,7 @@ int vdec_if_decode(struct mtk_vcodec_ctx *ctx,
> struct mtk_vcodec_mem *bs,
> >   * @type: [in] input parameter type
> >   * @out: [out] buffer to store query result
> >   */
> > -int vdec_if_get_param(struct mtk_vcodec_ctx *ctx, enum
> vdec_get_param_type type,
> > +int vdec_if_get_param(struct mtk_vcodec_dec_ctx *ctx, enum
> vdec_get_param_type type,
> >        void *out);
> >  
> >  #endif
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
> b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
> > index 1b2d01b15032..0dd1374ccc38 100644
> > --- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
> > +++ b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
> > @@ -199,7 +199,7 @@ bool vdec_msg_queue_wait_lat_buf_full(struct
> vdec_msg_queue *msg_queue)
> >  }
> >  
> >  void vdec_msg_queue_deinit(struct vdec_msg_queue *msg_queue,
> > -   struct mtk_vcodec_ctx *ctx)
> > +   struct mtk_vcodec_dec_ctx *ctx)
> >  {
> >  struct vdec_lat_buf *lat_buf;
> >  struct mtk_vcodec_mem *mem;
> > @@ -237,8 +237,8 @@ static void vdec_msg_queue_core_work(struct
> work_struct *work)
> >  {
> >  struct vdec_msg_queue *msg_queue =
> >  container_of(work, struct vdec_msg_queue, core_work);
> > -struct mtk_vcodec_ctx *ctx =
> > -container_of(msg_queue, struct mtk_vcodec_ctx, msg_queue);
> > +struct mtk_vcodec_dec_ctx *ctx =
> > +container_of(msg_queue, struct mtk_vcodec_dec_ctx, msg_queue);
> >  struct mtk_vcodec_dev *dev = ctx->dev;
> >  struct vdec_lat_buf *lat_buf;
> >  
> > @@ -278,7 +278,7 @@ static void vdec_msg_queue_core_work(struct
> work_struct *work)
> >  }
> >  
> >  int vdec_msg_queue_init(struct vdec_msg_queue *msg_queue,
> > -struct mtk_vcodec_ctx *ctx, core_decode_cb_t core_decode,
> > +struct mtk_vcodec_dec_ctx *ctx, core_decode_cb_t core_decode,
> >  int private_size)
> >  {
> >  struct vdec_lat_buf *lat_buf;
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
> b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
> > index 2f82cc08caa3..1fb3f57c2384 100644
> > --- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
> > +++ b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.h
> > @@ -17,7 +17,7 @@
> >  #define NUM_BUFFER_COUNT 3
> >  
> >  struct vdec_lat_buf;
> > -struct mtk_vcodec_ctx;
> > +struct mtk_vcodec_dec_ctx;
> >  struct mtk_vcodec_dev;
> >  typedef int (*core_decode_cb_t)(struct vdec_lat_buf *lat_buf);
> >  
> > @@ -76,7 +76,7 @@ struct vdec_lat_buf {
> >  struct media_request *src_buf_req;
> >  
> >  void *private_data;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  core_decode_cb_t core_decode;
> >  struct list_head lat_list;
> >  struct list_head core_list;
> > @@ -119,7 +119,7 @@ struct vdec_msg_queue {
> >  struct vdec_lat_buf empty_lat_buf;
> >  wait_queue_head_t core_dec_done;
> >  int status;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  };
> >  
> >  /**
> > @@ -132,7 +132,7 @@ struct vdec_msg_queue {
> >   * Return: returns 0 if init successfully, or fail.
> >   */
> >  int vdec_msg_queue_init(struct vdec_msg_queue *msg_queue,
> > -struct mtk_vcodec_ctx *ctx, core_decode_cb_t core_decode,
> > +struct mtk_vcodec_dec_ctx *ctx, core_decode_cb_t core_decode,
> >  int private_size);
> >  
> >  /**
> > @@ -188,6 +188,6 @@ bool vdec_msg_queue_wait_lat_buf_full(struct
> vdec_msg_queue *msg_queue);
> >   * @ctx: v4l2 ctx
> >   */
> >  void vdec_msg_queue_deinit(struct vdec_msg_queue *msg_queue,
> > -   struct mtk_vcodec_ctx *ctx);
> > +   struct mtk_vcodec_dec_ctx *ctx);
> >  
> >  #endif
> > diff --git a/drivers/media/platform/mediatek/vcodec/vdec_vpu_if.h
> b/drivers/media/platform/mediatek/vcodec/vdec_vpu_if.h
> > index 0436bba91457..c9766c108209 100644
> > --- a/drivers/media/platform/mediatek/vcodec/vdec_vpu_if.h
> > +++ b/drivers/media/platform/mediatek/vcodec/vdec_vpu_if.h
> > @@ -9,7 +9,7 @@
> >  
> >  #include "mtk_vcodec_fw.h"
> >  
> > -struct mtk_vcodec_ctx;
> > +struct mtk_vcodec_dec_ctx;
> >  
> >  /**
> >   * struct vdec_vpu_inst - VPU instance for video codec
> > @@ -40,7 +40,7 @@ struct vdec_vpu_inst {
> >  uint32_t fw_abi_version;
> >  uint32_t inst_id;
> >  unsigned int signaled;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_dec_ctx *ctx;
> >  wait_queue_head_t wq;
> >  mtk_vcodec_ipi_handler handler;
> >  unsigned int codec_type;
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/venc/venc_h264_if.c
> b/drivers/media/platform/mediatek/vcodec/venc/venc_h264_if.c
> > index 5abc9c4e6d4f..c5f9fc24a692 100644
> > --- a/drivers/media/platform/mediatek/vcodec/venc/venc_h264_if.c
> > +++ b/drivers/media/platform/mediatek/vcodec/venc/venc_h264_if.c
> > @@ -221,7 +221,7 @@ struct venc_h264_inst {
> >  struct venc_vpu_inst vpu_inst;
> >  struct venc_h264_vsi *vsi;
> >  struct venc_h264_vsi_34 *vsi_34;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_enc_ctx *ctx;
> >  };
> >  
> >  static inline u32 h264_read_reg(struct venc_h264_inst *inst, u32
> addr)
> > @@ -409,7 +409,7 @@ static int h264_enc_alloc_work_buf(struct
> venc_h264_inst *inst, bool is_34bit)
> >  static unsigned int h264_enc_wait_venc_done(struct venc_h264_inst
> *inst)
> >  {
> >  unsigned int irq_status = 0;
> > -struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)inst->ctx;
> > +struct mtk_vcodec_enc_ctx *ctx = (struct mtk_vcodec_enc_ctx
> *)inst->ctx;
> >  
> >  if (!mtk_vcodec_wait_for_done_ctx(ctx, MTK_INST_IRQ_RECEIVED,
> >    WAIT_INTR_TIMEOUT_MS, 0)) {
> > @@ -513,7 +513,7 @@ static int h264_encode_frame(struct
> venc_h264_inst *inst,
> >  unsigned int intra_period;
> >  unsigned int irq_status;
> >  struct venc_frame_info frame_info;
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_enc_ctx *ctx = inst->ctx;
> >  
> >  mtk_venc_debug(ctx, "frm_cnt = %d\n ", inst->frm_cnt);
> >  
> > @@ -582,7 +582,7 @@ static void h264_encode_filler(struct
> venc_h264_inst *inst, void *buf,
> >  memset(p, 0xff, size);
> >  }
> >  
> > -static int h264_enc_init(struct mtk_vcodec_ctx *ctx)
> > +static int h264_enc_init(struct mtk_vcodec_enc_ctx *ctx)
> >  {
> >  const bool is_ext = MTK_ENC_CTX_IS_EXT(ctx);
> >  int ret = 0;
> > @@ -620,7 +620,7 @@ static int h264_enc_encode(void *handle,
> >  {
> >  int ret = 0;
> >  struct venc_h264_inst *inst = (struct venc_h264_inst *)handle;
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_enc_ctx *ctx = inst->ctx;
> >  
> >  mtk_venc_debug(ctx, "opt %d ->", opt);
> >  
> > @@ -750,7 +750,7 @@ static int h264_enc_set_param(void *handle,
> >  {
> >  int ret = 0;
> >  struct venc_h264_inst *inst = (struct venc_h264_inst *)handle;
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_enc_ctx *ctx = inst->ctx;
> >  const bool is_34bit = MTK_ENC_IOVA_IS_34BIT(ctx);
> >  
> >  mtk_venc_debug(ctx, "->type=%d", type);
> > diff --git
> a/drivers/media/platform/mediatek/vcodec/venc/venc_vp8_if.c
> b/drivers/media/platform/mediatek/vcodec/venc/venc_vp8_if.c
> > index ff54064497f1..e8e4474eacc7 100644
> > --- a/drivers/media/platform/mediatek/vcodec/venc/venc_vp8_if.c
> > +++ b/drivers/media/platform/mediatek/vcodec/venc/venc_vp8_if.c
> > @@ -129,7 +129,7 @@ struct venc_vp8_inst {
> >  unsigned int ts_mode;
> >  struct venc_vpu_inst vpu_inst;
> >  struct venc_vp8_vsi *vsi;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_enc_ctx *ctx;
> >  };
> >  
> >  static inline u32 vp8_enc_read_reg(struct venc_vp8_inst *inst, u32
> addr)
> > @@ -209,7 +209,7 @@ static int vp8_enc_alloc_work_buf(struct
> venc_vp8_inst *inst)
> >  static unsigned int vp8_enc_wait_venc_done(struct venc_vp8_inst
> *inst)
> >  {
> >  unsigned int irq_status = 0;
> > -struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)inst->ctx;
> > +struct mtk_vcodec_enc_ctx *ctx = (struct mtk_vcodec_enc_ctx
> *)inst->ctx;
> >  
> >  if (!mtk_vcodec_wait_for_done_ctx(ctx, MTK_INST_IRQ_RECEIVED,
> >    WAIT_INTR_TIMEOUT_MS, 0)) {
> > @@ -312,7 +312,7 @@ static int vp8_enc_encode_frame(struct
> venc_vp8_inst *inst,
> >  return ret;
> >  }
> >  
> > -static int vp8_enc_init(struct mtk_vcodec_ctx *ctx)
> > +static int vp8_enc_init(struct mtk_vcodec_enc_ctx *ctx)
> >  {
> >  int ret = 0;
> >  struct venc_vp8_inst *inst;
> > @@ -346,7 +346,7 @@ static int vp8_enc_encode(void *handle,
> >  {
> >  int ret = 0;
> >  struct venc_vp8_inst *inst = (struct venc_vp8_inst *)handle;
> > -struct mtk_vcodec_ctx *ctx = inst->ctx;
> > +struct mtk_vcodec_enc_ctx *ctx = inst->ctx;
> >  
> >  enable_irq(ctx->dev->enc_irq);
> >  
> > diff --git a/drivers/media/platform/mediatek/vcodec/venc_drv_base.h
> b/drivers/media/platform/mediatek/vcodec/venc_drv_base.h
> > index 3d718411dc73..17f8183461b5 100644
> > --- a/drivers/media/platform/mediatek/vcodec/venc_drv_base.h
> > +++ b/drivers/media/platform/mediatek/vcodec/venc_drv_base.h
> > @@ -19,7 +19,7 @@ struct venc_common_if {
> >   * @ctx:[in] mtk v4l2 context
> >   * @handle: [out] driver handle
> >   */
> > -int (*init)(struct mtk_vcodec_ctx *ctx);
> > +int (*init)(struct mtk_vcodec_enc_ctx *ctx);
> >  
> >  /**
> >   * (*encode)() - trigger encode
> > diff --git a/drivers/media/platform/mediatek/vcodec/venc_drv_if.c
> b/drivers/media/platform/mediatek/vcodec/venc_drv_if.c
> > index ce0bce811615..08083030516e 100644
> > --- a/drivers/media/platform/mediatek/vcodec/venc_drv_if.c
> > +++ b/drivers/media/platform/mediatek/vcodec/venc_drv_if.c
> > @@ -16,7 +16,7 @@
> >  #include "mtk_vcodec_enc.h"
> >  #include "mtk_vcodec_enc_pm.h"
> >  
> > -int venc_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
> > +int venc_if_init(struct mtk_vcodec_enc_ctx *ctx, unsigned int
> fourcc)
> >  {
> >  int ret = 0;
> >  
> > @@ -40,8 +40,8 @@ int venc_if_init(struct mtk_vcodec_ctx *ctx,
> unsigned int fourcc)
> >  return ret;
> >  }
> >  
> > -int venc_if_set_param(struct mtk_vcodec_ctx *ctx,
> > -enum venc_set_param_type type, struct venc_enc_param *in)
> > +int venc_if_set_param(struct mtk_vcodec_enc_ctx *ctx,
> > +      enum venc_set_param_type type, struct venc_enc_param *in)
> >  {
> >  int ret = 0;
> >  
> > @@ -54,7 +54,7 @@ int venc_if_set_param(struct mtk_vcodec_ctx *ctx,
> >  return ret;
> >  }
> >  
> > -int venc_if_encode(struct mtk_vcodec_ctx *ctx,
> > +int venc_if_encode(struct mtk_vcodec_enc_ctx *ctx,
> >     enum venc_start_opt opt, struct venc_frm_buf *frm_buf,
> >     struct mtk_vcodec_mem *bs_buf,
> >     struct venc_done_result *result)
> > @@ -65,7 +65,7 @@ int venc_if_encode(struct mtk_vcodec_ctx *ctx,
> >  mtk_venc_lock(ctx);
> >  
> >  spin_lock_irqsave(&ctx->dev->irqlock, flags);
> > -ctx->dev->curr_ctx = ctx;
> > +ctx->dev->curr_enc_ctx = ctx;
> >  spin_unlock_irqrestore(&ctx->dev->irqlock, flags);
> >  
> >  mtk_vcodec_enc_clock_on(&ctx->dev->pm);
> > @@ -74,14 +74,14 @@ int venc_if_encode(struct mtk_vcodec_ctx *ctx,
> >  mtk_vcodec_enc_clock_off(&ctx->dev->pm);
> >  
> >  spin_lock_irqsave(&ctx->dev->irqlock, flags);
> > -ctx->dev->curr_ctx = NULL;
> > +ctx->dev->curr_enc_ctx = NULL;
> >  spin_unlock_irqrestore(&ctx->dev->irqlock, flags);
> >  
> >  mtk_venc_unlock(ctx);
> >  return ret;
> >  }
> >  
> > -int venc_if_deinit(struct mtk_vcodec_ctx *ctx)
> > +int venc_if_deinit(struct mtk_vcodec_enc_ctx *ctx)
> >  {
> >  int ret = 0;
> >  
> > diff --git a/drivers/media/platform/mediatek/vcodec/venc_drv_if.h
> b/drivers/media/platform/mediatek/vcodec/venc_drv_if.h
> > index 0b04a1020873..90d714e86ede 100644
> > --- a/drivers/media/platform/mediatek/vcodec/venc_drv_if.h
> > +++ b/drivers/media/platform/mediatek/vcodec/venc_drv_if.h
> > @@ -132,14 +132,14 @@ extern const struct venc_common_if
> venc_vp8_if;
> >   * @fourcc: encoder input format
> >   * Return: 0 if creating handle successfully, otherwise it is
> failed.
> >   */
> > -int venc_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc);
> > +int venc_if_init(struct mtk_vcodec_enc_ctx *ctx, unsigned int
> fourcc);
> >  
> >  /*
> >   * venc_if_deinit - Release the driver handle
> >   * @ctx: device context
> >   * Return: 0 if releasing handle successfully, otherwise it is
> failed.
> >   */
> > -int venc_if_deinit(struct mtk_vcodec_ctx *ctx);
> > +int venc_if_deinit(struct mtk_vcodec_enc_ctx *ctx);
> >  
> >  /*
> >   * venc_if_set_param - Set parameter to driver
> > @@ -148,7 +148,7 @@ int venc_if_deinit(struct mtk_vcodec_ctx *ctx);
> >   * @in: input parameter
> >   * Return: 0 if setting param successfully, otherwise it is
> failed.
> >   */
> > -int venc_if_set_param(struct mtk_vcodec_ctx *ctx,
> > +int venc_if_set_param(struct mtk_vcodec_enc_ctx *ctx,
> >        enum venc_set_param_type type,
> >        struct venc_enc_param *in);
> >  
> > @@ -161,7 +161,7 @@ int venc_if_set_param(struct mtk_vcodec_ctx
> *ctx,
> >   * @result: encode result
> >   * Return: 0 if encoding frame successfully, otherwise it is
> failed.
> >   */
> > -int venc_if_encode(struct mtk_vcodec_ctx *ctx,
> > +int venc_if_encode(struct mtk_vcodec_enc_ctx *ctx,
> >     enum venc_start_opt opt,
> >     struct venc_frm_buf *frm_buf,
> >     struct mtk_vcodec_mem *bs_buf,
> > diff --git a/drivers/media/platform/mediatek/vcodec/venc_vpu_if.h
> b/drivers/media/platform/mediatek/vcodec/venc_vpu_if.h
> > index f83bc1b3f2bf..71370ab98809 100644
> > --- a/drivers/media/platform/mediatek/vcodec/venc_vpu_if.h
> > +++ b/drivers/media/platform/mediatek/vcodec/venc_vpu_if.h
> > @@ -35,7 +35,7 @@ struct venc_vpu_inst {
> >  unsigned int inst_addr;
> >  void *vsi;
> >  int id;
> > -struct mtk_vcodec_ctx *ctx;
> > +struct mtk_vcodec_enc_ctx *ctx;
> >  };
> >  
> >  int vpu_enc_init(struct venc_vpu_inst *vpu);
> 
> With the slight doc improved:
> 
> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>
>