Rename existing functions/defines/variables with a  _dec prefix and
without dec_ prefix to prepare for the addition of the jpeg encoder
feature.

Reviewed-by: Tomasz Figa <tf...@chromium.org>
Signed-off-by: Xia Jiang <xia.ji...@mediatek.com>
---
v10: no changes
---
 .../media/platform/mtk-jpeg/mtk_jpeg_core.c   | 172 +++++++++---------
 .../media/platform/mtk-jpeg/mtk_jpeg_core.h   |  12 +-
 .../media/platform/mtk-jpeg/mtk_jpeg_dec_hw.h |   5 +-
 3 files changed, 97 insertions(+), 92 deletions(-)

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c 
b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index 605b4fb3d90b..e245bcdb6f1a 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -27,11 +27,11 @@
 #include "mtk_jpeg_core.h"
 #include "mtk_jpeg_dec_parse.h"
 
-static struct mtk_jpeg_fmt mtk_jpeg_formats[] = {
+static struct mtk_jpeg_fmt mtk_jpeg_dec_formats[] = {
        {
                .fourcc         = V4L2_PIX_FMT_JPEG,
                .colplanes      = 1,
-               .flags          = MTK_JPEG_FMT_FLAG_DEC_OUTPUT,
+               .flags          = MTK_JPEG_FMT_FLAG_OUTPUT,
        },
        {
                .fourcc         = V4L2_PIX_FMT_YUV420M,
@@ -40,7 +40,7 @@ static struct mtk_jpeg_fmt mtk_jpeg_formats[] = {
                .colplanes      = 3,
                .h_align        = 5,
                .v_align        = 4,
-               .flags          = MTK_JPEG_FMT_FLAG_DEC_CAPTURE,
+               .flags          = MTK_JPEG_FMT_FLAG_CAPTURE,
        },
        {
                .fourcc         = V4L2_PIX_FMT_YUV422M,
@@ -49,11 +49,11 @@ static struct mtk_jpeg_fmt mtk_jpeg_formats[] = {
                .colplanes      = 3,
                .h_align        = 5,
                .v_align        = 3,
-               .flags          = MTK_JPEG_FMT_FLAG_DEC_CAPTURE,
+               .flags          = MTK_JPEG_FMT_FLAG_CAPTURE,
        },
 };
 
-#define MTK_JPEG_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_formats)
+#define MTK_JPEG_DEC_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_dec_formats)
 
 struct mtk_jpeg_src_buf {
        struct vb2_v4l2_buffer b;
@@ -112,15 +112,15 @@ static int mtk_jpeg_enum_fmt(struct mtk_jpeg_fmt 
*mtk_jpeg_formats, int n,
 static int mtk_jpeg_enum_fmt_vid_cap(struct file *file, void *priv,
                                     struct v4l2_fmtdesc *f)
 {
-       return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
-                                MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
+       return mtk_jpeg_enum_fmt(mtk_jpeg_dec_formats, MTK_JPEG_DEC_NUM_FORMATS,
+                                f, MTK_JPEG_FMT_FLAG_CAPTURE);
 }
 
 static int mtk_jpeg_enum_fmt_vid_out(struct file *file, void *priv,
                                     struct v4l2_fmtdesc *f)
 {
-       return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
-                                MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
+       return mtk_jpeg_enum_fmt(mtk_jpeg_dec_formats, MTK_JPEG_DEC_NUM_FORMATS,
+                                f, MTK_JPEG_FMT_FLAG_OUTPUT);
 }
 
 static struct mtk_jpeg_q_data *mtk_jpeg_get_q_data(struct mtk_jpeg_ctx *ctx,
@@ -246,9 +246,10 @@ static int mtk_jpeg_try_fmt_vid_cap_mplane(struct file 
*file, void *priv,
        struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
        struct mtk_jpeg_fmt *fmt;
 
-       fmt = mtk_jpeg_find_format(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS,
+       fmt = mtk_jpeg_find_format(mtk_jpeg_dec_formats,
+                                  MTK_JPEG_DEC_NUM_FORMATS,
                                   f->fmt.pix_mp.pixelformat,
-                                  MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
+                                  MTK_JPEG_FMT_FLAG_CAPTURE);
        if (!fmt)
                fmt = ctx->cap_q.fmt;
 
@@ -273,9 +274,10 @@ static int mtk_jpeg_try_fmt_vid_out_mplane(struct file 
*file, void *priv,
        struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
        struct mtk_jpeg_fmt *fmt;
 
-       fmt = mtk_jpeg_find_format(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS,
+       fmt = mtk_jpeg_find_format(mtk_jpeg_dec_formats,
+                                  MTK_JPEG_DEC_NUM_FORMATS,
                                   f->fmt.pix_mp.pixelformat,
-                                  MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
+                                  MTK_JPEG_FMT_FLAG_OUTPUT);
        if (!fmt)
                fmt = ctx->out_q.fmt;
 
@@ -315,8 +317,8 @@ static int mtk_jpeg_s_fmt_mplane(struct mtk_jpeg_ctx *ctx,
        }
 
 
-       q_data->fmt = mtk_jpeg_find_format(mtk_jpeg_formats,
-                                          MTK_JPEG_NUM_FORMATS,
+       q_data->fmt = mtk_jpeg_find_format(mtk_jpeg_dec_formats,
+                                          MTK_JPEG_DEC_NUM_FORMATS,
                                           pix_mp->pixelformat, fmt_type);
        q_data->pix_mp.width = pix_mp->width;
        q_data->pix_mp.height = pix_mp->height;
@@ -358,7 +360,7 @@ static int mtk_jpeg_s_fmt_vid_out_mplane(struct file *file, 
void *priv,
                return ret;
 
        return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f,
-                                    MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
+                                    MTK_JPEG_FMT_FLAG_OUTPUT);
 }
 
 static int mtk_jpeg_s_fmt_vid_cap_mplane(struct file *file, void *priv,
@@ -371,7 +373,7 @@ static int mtk_jpeg_s_fmt_vid_cap_mplane(struct file *file, 
void *priv,
                return ret;
 
        return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f,
-                                    MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
+                                    MTK_JPEG_FMT_FLAG_CAPTURE);
 }
 
 static void mtk_jpeg_queue_src_chg_event(struct mtk_jpeg_ctx *ctx)
@@ -396,8 +398,8 @@ static int mtk_jpeg_subscribe_event(struct v4l2_fh *fh,
        return v4l2_ctrl_subscribe_event(fh, sub);
 }
 
-static int mtk_jpeg_g_selection(struct file *file, void *priv,
-                               struct v4l2_selection *s)
+static int mtk_jpeg_dec_g_selection(struct file *file, void *priv,
+                                   struct v4l2_selection *s)
 {
        struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
 
@@ -425,7 +427,7 @@ static int mtk_jpeg_g_selection(struct file *file, void 
*priv,
        return 0;
 }
 
-static const struct v4l2_ioctl_ops mtk_jpeg_ioctl_ops = {
+static const struct v4l2_ioctl_ops mtk_jpeg_dec_ioctl_ops = {
        .vidioc_querycap                = mtk_jpeg_querycap,
        .vidioc_enum_fmt_vid_cap        = mtk_jpeg_enum_fmt_vid_cap,
        .vidioc_enum_fmt_vid_out        = mtk_jpeg_enum_fmt_vid_out,
@@ -437,7 +439,7 @@ static const struct v4l2_ioctl_ops mtk_jpeg_ioctl_ops = {
        .vidioc_s_fmt_vid_out_mplane    = mtk_jpeg_s_fmt_vid_out_mplane,
        .vidioc_qbuf                    = v4l2_m2m_ioctl_qbuf,
        .vidioc_subscribe_event         = mtk_jpeg_subscribe_event,
-       .vidioc_g_selection             = mtk_jpeg_g_selection,
+       .vidioc_g_selection             = mtk_jpeg_dec_g_selection,
 
        .vidioc_create_bufs             = v4l2_m2m_ioctl_create_bufs,
        .vidioc_prepare_buf             = v4l2_m2m_ioctl_prepare_buf,
@@ -517,9 +519,9 @@ static bool mtk_jpeg_check_resolution_change(struct 
mtk_jpeg_ctx *ctx,
        }
 
        q_data = &ctx->cap_q;
-       if (q_data->fmt != mtk_jpeg_find_format(mtk_jpeg_formats,
-                       MTK_JPEG_NUM_FORMATS, param->dst_fourcc,
-                       MTK_JPEG_FMT_FLAG_DEC_CAPTURE)) {
+       if (q_data->fmt != mtk_jpeg_find_format(mtk_jpeg_dec_formats,
+                       MTK_JPEG_DEC_NUM_FORMATS, param->dst_fourcc,
+                       MTK_JPEG_FMT_FLAG_CAPTURE)) {
                v4l2_dbg(1, debug, &jpeg->v4l2_dev, "format change\n");
                return true;
        }
@@ -540,10 +542,10 @@ static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx 
*ctx,
        q_data = &ctx->cap_q;
        q_data->pix_mp.width = param->dec_w;
        q_data->pix_mp.height = param->dec_h;
-       q_data->fmt = mtk_jpeg_find_format(mtk_jpeg_formats,
-                                          MTK_JPEG_NUM_FORMATS,
+       q_data->fmt = mtk_jpeg_find_format(mtk_jpeg_dec_formats,
+                                          MTK_JPEG_DEC_NUM_FORMATS,
                                           param->dst_fourcc,
-                                          MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
+                                          MTK_JPEG_FMT_FLAG_CAPTURE);
 
        for (i = 0; i < q_data->fmt->colplanes; i++) {
                q_data->pix_mp.plane_fmt[i].bytesperline = param->mem_stride[i];
@@ -560,7 +562,7 @@ static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx 
*ctx,
                 param->dec_w, param->dec_h);
 }
 
-static void mtk_jpeg_buf_queue(struct vb2_buffer *vb)
+static void mtk_jpeg_dec_buf_queue(struct vb2_buffer *vb)
 {
        struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
        struct mtk_jpeg_dec_param *param;
@@ -608,7 +610,7 @@ static struct vb2_v4l2_buffer *mtk_jpeg_buf_remove(struct 
mtk_jpeg_ctx *ctx,
                return v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
 }
 
-static void mtk_jpeg_stop_streaming(struct vb2_queue *q)
+static void mtk_jpeg_dec_stop_streaming(struct vb2_queue *q)
 {
        struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
        struct vb2_v4l2_buffer *vb;
@@ -634,13 +636,13 @@ static void mtk_jpeg_stop_streaming(struct vb2_queue *q)
                v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR);
 }
 
-static const struct vb2_ops mtk_jpeg_qops = {
+static const struct vb2_ops mtk_jpeg_dec_qops = {
        .queue_setup        = mtk_jpeg_queue_setup,
        .buf_prepare        = mtk_jpeg_buf_prepare,
-       .buf_queue          = mtk_jpeg_buf_queue,
+       .buf_queue          = mtk_jpeg_dec_buf_queue,
        .wait_prepare       = vb2_ops_wait_prepare,
        .wait_finish        = vb2_ops_wait_finish,
-       .stop_streaming     = mtk_jpeg_stop_streaming,
+       .stop_streaming     = mtk_jpeg_dec_stop_streaming,
 };
 
 static void mtk_jpeg_set_dec_src(struct mtk_jpeg_ctx *ctx,
@@ -680,7 +682,7 @@ static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx,
        return 0;
 }
 
-static void mtk_jpeg_device_run(void *priv)
+static void mtk_jpeg_dec_device_run(void *priv)
 {
        struct mtk_jpeg_ctx *ctx = priv;
        struct mtk_jpeg_dev *jpeg = ctx->jpeg;
@@ -715,11 +717,11 @@ static void mtk_jpeg_device_run(void *priv)
                goto dec_end;
 
        spin_lock_irqsave(&jpeg->hw_lock, flags);
-       mtk_jpeg_dec_reset(jpeg->dec_reg_base);
-       mtk_jpeg_dec_set_config(jpeg->dec_reg_base,
+       mtk_jpeg_dec_reset(jpeg->reg_base);
+       mtk_jpeg_dec_set_config(jpeg->reg_base,
                                &jpeg_src_buf->dec_param, &bs, &fb);
 
-       mtk_jpeg_dec_start(jpeg->dec_reg_base);
+       mtk_jpeg_dec_start(jpeg->reg_base);
        spin_unlock_irqrestore(&jpeg->hw_lock, flags);
        return;
 
@@ -731,16 +733,16 @@ static void mtk_jpeg_device_run(void *priv)
        v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
 }
 
-static int mtk_jpeg_job_ready(void *priv)
+static int mtk_jpeg_dec_job_ready(void *priv)
 {
        struct mtk_jpeg_ctx *ctx = priv;
 
        return (ctx->state == MTK_JPEG_RUNNING) ? 1 : 0;
 }
 
-static const struct v4l2_m2m_ops mtk_jpeg_m2m_ops = {
-       .device_run = mtk_jpeg_device_run,
-       .job_ready  = mtk_jpeg_job_ready,
+static const struct v4l2_m2m_ops mtk_jpeg_dec_m2m_ops = {
+       .device_run = mtk_jpeg_dec_device_run,
+       .job_ready  = mtk_jpeg_dec_job_ready,
 };
 
 static int mtk_jpeg_queue_init(void *priv, struct vb2_queue *src_vq,
@@ -753,7 +755,7 @@ static int mtk_jpeg_queue_init(void *priv, struct vb2_queue 
*src_vq,
        src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
        src_vq->drv_priv = ctx;
        src_vq->buf_struct_size = sizeof(struct mtk_jpeg_src_buf);
-       src_vq->ops = &mtk_jpeg_qops;
+       src_vq->ops = &mtk_jpeg_dec_qops;
        src_vq->mem_ops = &vb2_dma_contig_memops;
        src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
        src_vq->lock = &ctx->jpeg->lock;
@@ -766,7 +768,7 @@ static int mtk_jpeg_queue_init(void *priv, struct vb2_queue 
*src_vq,
        dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
        dst_vq->drv_priv = ctx;
        dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
-       dst_vq->ops = &mtk_jpeg_qops;
+       dst_vq->ops = &mtk_jpeg_dec_qops;
        dst_vq->mem_ops = &vb2_dma_contig_memops;
        dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
        dst_vq->lock = &ctx->jpeg->lock;
@@ -808,7 +810,7 @@ static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
 
        cancel_delayed_work(&jpeg->job_timeout_work);
 
-       dec_ret = mtk_jpeg_dec_get_int_status(jpeg->dec_reg_base);
+       dec_ret = mtk_jpeg_dec_get_int_status(jpeg->reg_base);
        dec_irq_ret = mtk_jpeg_dec_enum_result(dec_ret);
        ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
        if (!ctx) {
@@ -821,7 +823,7 @@ static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
        jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf);
 
        if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
-               mtk_jpeg_dec_reset(jpeg->dec_reg_base);
+               mtk_jpeg_dec_reset(jpeg->reg_base);
 
        if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
                dev_err(jpeg->dev, "decode failed\n");
@@ -851,17 +853,19 @@ static void mtk_jpeg_set_default_params(struct 
mtk_jpeg_ctx *ctx)
        q->pix_mp.quantization = V4L2_QUANTIZATION_FULL_RANGE;
        q->pix_mp.xfer_func = V4L2_XFER_FUNC_SRGB;
 
-       q->fmt = mtk_jpeg_find_format(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS,
+       q->fmt = mtk_jpeg_find_format(mtk_jpeg_dec_formats,
+                                     MTK_JPEG_DEC_NUM_FORMATS,
                                      V4L2_PIX_FMT_JPEG,
-                                     MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
+                                     MTK_JPEG_FMT_FLAG_OUTPUT);
        q->pix_mp.width = MTK_JPEG_MIN_WIDTH;
        q->pix_mp.height = MTK_JPEG_MIN_HEIGHT;
        mtk_jpeg_try_fmt_mplane(&q->pix_mp, q->fmt);
 
        q = &ctx->cap_q;
-       q->fmt = mtk_jpeg_find_format(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS,
+       q->fmt = mtk_jpeg_find_format(mtk_jpeg_dec_formats,
+                                     MTK_JPEG_DEC_NUM_FORMATS,
                                      V4L2_PIX_FMT_YUV420M,
-                                     MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
+                                     MTK_JPEG_FMT_FLAG_CAPTURE);
        q->pix_mp.colorspace = V4L2_COLORSPACE_SRGB;
        q->pix_mp.ycbcr_enc = V4L2_YCBCR_ENC_601;
        q->pix_mp.quantization = V4L2_QUANTIZATION_FULL_RANGE;
@@ -1000,7 +1004,7 @@ static void mtk_jpeg_job_timeout_work(struct work_struct 
*work)
        src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
        dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
 
-       mtk_jpeg_dec_reset(jpeg->dec_reg_base);
+       mtk_jpeg_dec_reset(jpeg->reg_base);
 
        pm_runtime_put(jpeg->dev);
 
@@ -1012,7 +1016,7 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 {
        struct mtk_jpeg_dev *jpeg;
        struct resource *res;
-       int dec_irq;
+       int jpeg_irq;
        int ret;
 
        jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL);
@@ -1025,23 +1029,23 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
        INIT_DELAYED_WORK(&jpeg->job_timeout_work, mtk_jpeg_job_timeout_work);
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       jpeg->dec_reg_base = devm_ioremap_resource(&pdev->dev, res);
-       if (IS_ERR(jpeg->dec_reg_base)) {
-               ret = PTR_ERR(jpeg->dec_reg_base);
+       jpeg->reg_base = devm_ioremap_resource(&pdev->dev, res);
+       if (IS_ERR(jpeg->reg_base)) {
+               ret = PTR_ERR(jpeg->reg_base);
                return ret;
        }
 
-       dec_irq = platform_get_irq(pdev, 0);
-       if (dec_irq < 0) {
-               dev_err(&pdev->dev, "Failed to get dec_irq %d.\n", dec_irq);
-               return dec_irq;
+       jpeg_irq = platform_get_irq(pdev, 0);
+       if (jpeg_irq < 0) {
+               dev_err(&pdev->dev, "Failed to get jpeg_irq %d.\n", jpeg_irq);
+               return jpeg_irq;
        }
 
-       ret = devm_request_irq(&pdev->dev, dec_irq, mtk_jpeg_dec_irq, 0,
+       ret = devm_request_irq(&pdev->dev, jpeg_irq, mtk_jpeg_dec_irq, 0,
                               pdev->name, jpeg);
        if (ret) {
-               dev_err(&pdev->dev, "Failed to request dec_irq %d (%d)\n",
-                       dec_irq, ret);
+               dev_err(&pdev->dev, "Failed to request jpeg_irq %d (%d)\n",
+                       jpeg_irq, ret);
                goto err_req_irq;
        }
 
@@ -1058,40 +1062,40 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
                goto err_dev_register;
        }
 
-       jpeg->m2m_dev = v4l2_m2m_init(&mtk_jpeg_m2m_ops);
+       jpeg->m2m_dev = v4l2_m2m_init(&mtk_jpeg_dec_m2m_ops);
        if (IS_ERR(jpeg->m2m_dev)) {
                v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n");
                ret = PTR_ERR(jpeg->m2m_dev);
                goto err_m2m_init;
        }
 
-       jpeg->dec_vdev = video_device_alloc();
-       if (!jpeg->dec_vdev) {
+       jpeg->vdev = video_device_alloc();
+       if (!jpeg->vdev) {
                ret = -ENOMEM;
-               goto err_dec_vdev_alloc;
+               goto err_vfd_jpeg_alloc;
        }
-       snprintf(jpeg->dec_vdev->name, sizeof(jpeg->dec_vdev->name),
+       snprintf(jpeg->vdev->name, sizeof(jpeg->vdev->name),
                 "%s-dec", MTK_JPEG_NAME);
-       jpeg->dec_vdev->fops = &mtk_jpeg_fops;
-       jpeg->dec_vdev->ioctl_ops = &mtk_jpeg_ioctl_ops;
-       jpeg->dec_vdev->minor = -1;
-       jpeg->dec_vdev->release = video_device_release;
-       jpeg->dec_vdev->lock = &jpeg->lock;
-       jpeg->dec_vdev->v4l2_dev = &jpeg->v4l2_dev;
-       jpeg->dec_vdev->vfl_dir = VFL_DIR_M2M;
-       jpeg->dec_vdev->device_caps = V4L2_CAP_STREAMING |
-                                     V4L2_CAP_VIDEO_M2M_MPLANE;
-
-       ret = video_register_device(jpeg->dec_vdev, VFL_TYPE_VIDEO, -1);
+       jpeg->vdev->fops = &mtk_jpeg_fops;
+       jpeg->vdev->ioctl_ops = &mtk_jpeg_dec_ioctl_ops;
+       jpeg->vdev->minor = -1;
+       jpeg->vdev->release = video_device_release;
+       jpeg->vdev->lock = &jpeg->lock;
+       jpeg->vdev->v4l2_dev = &jpeg->v4l2_dev;
+       jpeg->vdev->vfl_dir = VFL_DIR_M2M;
+       jpeg->vdev->device_caps = V4L2_CAP_STREAMING |
+                                 V4L2_CAP_VIDEO_M2M_MPLANE;
+
+       ret = video_register_device(jpeg->vdev, VFL_TYPE_VIDEO, -1);
        if (ret) {
                v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");
-               goto err_dec_vdev_register;
+               goto err_vfd_jpeg_register;
        }
 
-       video_set_drvdata(jpeg->dec_vdev, jpeg);
+       video_set_drvdata(jpeg->vdev, jpeg);
        v4l2_info(&jpeg->v4l2_dev,
                  "decoder device registered as /dev/video%d (%d,%d)\n",
-                 jpeg->dec_vdev->num, VIDEO_MAJOR, jpeg->dec_vdev->minor);
+                 jpeg->vdev->num, VIDEO_MAJOR, jpeg->vdev->minor);
 
        platform_set_drvdata(pdev, jpeg);
 
@@ -1099,10 +1103,10 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 
        return 0;
 
-err_dec_vdev_register:
-       video_device_release(jpeg->dec_vdev);
+err_vfd_jpeg_register:
+       video_device_release(jpeg->vdev);
 
-err_dec_vdev_alloc:
+err_vfd_jpeg_alloc:
        v4l2_m2m_release(jpeg->m2m_dev);
 
 err_m2m_init:
@@ -1122,8 +1126,8 @@ static int mtk_jpeg_remove(struct platform_device *pdev)
        struct mtk_jpeg_dev *jpeg = platform_get_drvdata(pdev);
 
        pm_runtime_disable(&pdev->dev);
-       video_unregister_device(jpeg->dec_vdev);
-       video_device_release(jpeg->dec_vdev);
+       video_unregister_device(jpeg->vdev);
+       video_device_release(jpeg->vdev);
        v4l2_m2m_release(jpeg->m2m_dev);
        v4l2_device_unregister(&jpeg->v4l2_dev);
 
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h 
b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
index a54e1e82e655..0f27480dd90d 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
@@ -17,8 +17,8 @@
 
 #define MTK_JPEG_COMP_MAX              3
 
-#define MTK_JPEG_FMT_FLAG_DEC_OUTPUT   BIT(0)
-#define MTK_JPEG_FMT_FLAG_DEC_CAPTURE  BIT(1)
+#define MTK_JPEG_FMT_FLAG_OUTPUT       BIT(0)
+#define MTK_JPEG_FMT_FLAG_CAPTURE      BIT(1)
 
 #define MTK_JPEG_MIN_WIDTH     32U
 #define MTK_JPEG_MIN_HEIGHT    32U
@@ -50,8 +50,8 @@ enum mtk_jpeg_ctx_state {
  * @v4l2_dev:          v4l2 device for mem2mem mode
  * @m2m_dev:           v4l2 mem2mem device data
  * @alloc_ctx:         videobuf2 memory allocator's context
- * @dec_vdev:          video device node for decoder mem2mem mode
- * @dec_reg_base:      JPEG registers mapping
+ * @vdev:              video device node for jpeg mem2mem mode
+ * @reg_base:          JPEG registers mapping
  * @clks:              clock names
  * @num_clks:          numbers of clock
  * @larb:              SMI device
@@ -65,8 +65,8 @@ struct mtk_jpeg_dev {
        struct v4l2_device      v4l2_dev;
        struct v4l2_m2m_dev     *m2m_dev;
        void                    *alloc_ctx;
-       struct video_device     *dec_vdev;
-       void __iomem            *dec_reg_base;
+       struct video_device     *vdev;
+       void __iomem            *reg_base;
        struct clk_bulk_data *clks;
        int num_clks;
        struct device           *larb;
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.h 
b/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.h
index 1cc37dbfc8e7..fa0d45fd7c34 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.h
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_dec_hw.h
@@ -3,10 +3,11 @@
  * Copyright (c) 2016 MediaTek Inc.
  * Author: Ming Hsiu Tsai <minghsiu.t...@mediatek.com>
  *         Rick Chang <rick.ch...@mediatek.com>
+ *         Xia Jiang <xia.ji...@mediatek.com>
  */
 
-#ifndef _MTK_JPEG_HW_H
-#define _MTK_JPEG_HW_H
+#ifndef _MTK_JPEG_DEC_HW_H
+#define _MTK_JPEG_DEC_HW_H
 
 #include <media/videobuf2-core.h>
 
-- 
2.18.0

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