media: platform: rename mediatek/mtk-jpeg/ to mediatek/jpeg/

As the end goal is to have platform drivers split by vendor,
rename mediatek/mtk-jpeg/ to mediatek/jpeg/.

Requested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

11 files changed, 2664 insertions, 0 deletions

diff --git a/drivers/media/platform/mediatek/jpeg/Kconfig b/drivers/media/platform/mediatek/jpeg/Kconfig
new file mode 100644
index 000000000000..39c4d1bc66ce
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/Kconfig
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_MEDIATEK_JPEG
+	tristate "Mediatek JPEG Codec driver"
+	depends on V4L_MEM2MEM_DRIVERS
+	depends on MTK_IOMMU_V1 || MTK_IOMMU || COMPILE_TEST
+	depends on VIDEO_DEV
+	depends on ARCH_MEDIATEK || COMPILE_TEST
+	depends on MTK_SMI || (COMPILE_TEST && MTK_SMI=n)
+	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_MEM2MEM_DEV
+	help
+	  Mediatek jpeg codec driver provides HW capability to decode
+	  JPEG format
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called mtk-jpeg
diff --git a/drivers/media/platform/mediatek/jpeg/Makefile b/drivers/media/platform/mediatek/jpeg/Makefile
new file mode 100644
index 000000000000..76c33aad0f3f
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+mtk_jpeg-objs := mtk_jpeg_core.o \
+		 mtk_jpeg_dec_hw.o \
+		 mtk_jpeg_dec_parse.o \
+		 mtk_jpeg_enc_hw.o
+obj-$(CONFIG_VIDEO_MEDIATEK_JPEG) += mtk_jpeg.o
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
new file mode 100644
index 000000000000..ab5485dfc20c
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -0,0 +1,1528 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@mediatek.com>
+ *         Xia Jiang <xia.jiang@mediatek.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "mtk_jpeg_enc_hw.h"
+#include "mtk_jpeg_dec_hw.h"
+#include "mtk_jpeg_core.h"
+#include "mtk_jpeg_dec_parse.h"
+
+static struct mtk_jpeg_fmt mtk_jpeg_enc_formats[] = {
+	{
+		.fourcc		= V4L2_PIX_FMT_JPEG,
+		.colplanes	= 1,
+		.flags		= MTK_JPEG_FMT_FLAG_CAPTURE,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_NV12M,
+		.hw_format	= JPEG_ENC_YUV_FORMAT_NV12,
+		.h_sample	= {4, 4},
+		.v_sample	= {4, 2},
+		.colplanes	= 2,
+		.h_align	= 4,
+		.v_align	= 4,
+		.flags		= MTK_JPEG_FMT_FLAG_OUTPUT,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_NV21M,
+		.hw_format	= JEPG_ENC_YUV_FORMAT_NV21,
+		.h_sample	= {4, 4},
+		.v_sample	= {4, 2},
+		.colplanes	= 2,
+		.h_align	= 4,
+		.v_align	= 4,
+		.flags		= MTK_JPEG_FMT_FLAG_OUTPUT,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_YUYV,
+		.hw_format	= JPEG_ENC_YUV_FORMAT_YUYV,
+		.h_sample	= {8},
+		.v_sample	= {4},
+		.colplanes	= 1,
+		.h_align	= 5,
+		.v_align	= 3,
+		.flags		= MTK_JPEG_FMT_FLAG_OUTPUT,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_YVYU,
+		.hw_format	= JPEG_ENC_YUV_FORMAT_YVYU,
+		.h_sample	= {8},
+		.v_sample	= {4},
+		.colplanes	= 1,
+		.h_align	= 5,
+		.v_align	= 3,
+		.flags		= MTK_JPEG_FMT_FLAG_OUTPUT,
+	},
+};
+
+static struct mtk_jpeg_fmt mtk_jpeg_dec_formats[] = {
+	{
+		.fourcc		= V4L2_PIX_FMT_JPEG,
+		.colplanes	= 1,
+		.flags		= MTK_JPEG_FMT_FLAG_OUTPUT,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_YUV420M,
+		.h_sample	= {4, 2, 2},
+		.v_sample	= {4, 2, 2},
+		.colplanes	= 3,
+		.h_align	= 5,
+		.v_align	= 4,
+		.flags		= MTK_JPEG_FMT_FLAG_CAPTURE,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_YUV422M,
+		.h_sample	= {4, 2, 2},
+		.v_sample	= {4, 4, 4},
+		.colplanes	= 3,
+		.h_align	= 5,
+		.v_align	= 3,
+		.flags		= MTK_JPEG_FMT_FLAG_CAPTURE,
+	},
+};
+
+#define MTK_JPEG_ENC_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_enc_formats)
+#define MTK_JPEG_DEC_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_dec_formats)
+
+struct mtk_jpeg_src_buf {
+	struct vb2_v4l2_buffer b;
+	struct list_head list;
+	struct mtk_jpeg_dec_param dec_param;
+};
+
+static int debug;
+module_param(debug, int, 0644);
+
+static inline struct mtk_jpeg_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
+{
+	return container_of(ctrl->handler, struct mtk_jpeg_ctx, ctrl_hdl);
+}
+
+static inline struct mtk_jpeg_ctx *mtk_jpeg_fh_to_ctx(struct v4l2_fh *fh)
+{
+	return container_of(fh, struct mtk_jpeg_ctx, fh);
+}
+
+static inline struct mtk_jpeg_src_buf *mtk_jpeg_vb2_to_srcbuf(
+							struct vb2_buffer *vb)
+{
+	return container_of(to_vb2_v4l2_buffer(vb), struct mtk_jpeg_src_buf, b);
+}
+
+static int mtk_jpeg_querycap(struct file *file, void *priv,
+			     struct v4l2_capability *cap)
+{
+	struct mtk_jpeg_dev *jpeg = video_drvdata(file);
+
+	strscpy(cap->driver, jpeg->variant->dev_name, sizeof(cap->driver));
+	strscpy(cap->card, jpeg->variant->dev_name, sizeof(cap->card));
+	snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
+		 dev_name(jpeg->dev));
+
+	return 0;
+}
+
+static int vidioc_jpeg_enc_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct mtk_jpeg_ctx *ctx = ctrl_to_ctx(ctrl);
+
+	switch (ctrl->id) {
+	case V4L2_CID_JPEG_RESTART_INTERVAL:
+		ctx->restart_interval = ctrl->val;
+		break;
+	case V4L2_CID_JPEG_COMPRESSION_QUALITY:
+		ctx->enc_quality = ctrl->val;
+		break;
+	case V4L2_CID_JPEG_ACTIVE_MARKER:
+		ctx->enable_exif = ctrl->val & V4L2_JPEG_ACTIVE_MARKER_APP1;
+		break;
+	}
+
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops mtk_jpeg_enc_ctrl_ops = {
+	.s_ctrl = vidioc_jpeg_enc_s_ctrl,
+};
+
+static int mtk_jpeg_enc_ctrls_setup(struct mtk_jpeg_ctx *ctx)
+{
+	const struct v4l2_ctrl_ops *ops = &mtk_jpeg_enc_ctrl_ops;
+	struct v4l2_ctrl_handler *handler = &ctx->ctrl_hdl;
+
+	v4l2_ctrl_handler_init(handler, 3);
+
+	v4l2_ctrl_new_std(handler, ops, V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100,
+			  1, 0);
+	v4l2_ctrl_new_std(handler, ops, V4L2_CID_JPEG_COMPRESSION_QUALITY, 48,
+			  100, 1, 90);
+	v4l2_ctrl_new_std(handler, ops, V4L2_CID_JPEG_ACTIVE_MARKER, 0,
+			  V4L2_JPEG_ACTIVE_MARKER_APP1, 0, 0);
+
+	if (handler->error) {
+		v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
+		return handler->error;
+	}
+
+	v4l2_ctrl_handler_setup(&ctx->ctrl_hdl);
+
+	return 0;
+}
+
+static int mtk_jpeg_enum_fmt(struct mtk_jpeg_fmt *mtk_jpeg_formats, int n,
+			     struct v4l2_fmtdesc *f, u32 type)
+{
+	int i, num = 0;
+
+	for (i = 0; i < n; ++i) {
+		if (mtk_jpeg_formats[i].flags & type) {
+			if (num == f->index)
+				break;
+			++num;
+		}
+	}
+
+	if (i >= n)
+		return -EINVAL;
+
+	f->pixelformat = mtk_jpeg_formats[i].fourcc;
+
+	return 0;
+}
+
+static int mtk_jpeg_enum_fmt_vid_cap(struct file *file, void *priv,
+				     struct v4l2_fmtdesc *f)
+{
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+
+	return mtk_jpeg_enum_fmt(jpeg->variant->formats,
+				 jpeg->variant->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)
+{
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+
+	return mtk_jpeg_enum_fmt(jpeg->variant->formats,
+				 jpeg->variant->num_formats, f,
+				 MTK_JPEG_FMT_FLAG_OUTPUT);
+}
+
+static struct mtk_jpeg_q_data *mtk_jpeg_get_q_data(struct mtk_jpeg_ctx *ctx,
+						   enum v4l2_buf_type type)
+{
+	if (V4L2_TYPE_IS_OUTPUT(type))
+		return &ctx->out_q;
+	return &ctx->cap_q;
+}
+
+static struct mtk_jpeg_fmt *
+mtk_jpeg_find_format(struct mtk_jpeg_fmt *mtk_jpeg_formats, int num_formats,
+		     u32 pixelformat, unsigned int fmt_type)
+{
+	unsigned int k;
+	struct mtk_jpeg_fmt *fmt;
+
+	for (k = 0; k < num_formats; k++) {
+		fmt = &mtk_jpeg_formats[k];
+
+		if (fmt->fourcc == pixelformat && fmt->flags & fmt_type)
+			return fmt;
+	}
+
+	return NULL;
+}
+
+static int mtk_jpeg_try_fmt_mplane(struct v4l2_pix_format_mplane *pix_mp,
+				   struct mtk_jpeg_fmt *fmt)
+{
+	int i;
+
+	pix_mp->field = V4L2_FIELD_NONE;
+
+	pix_mp->num_planes = fmt->colplanes;
+	pix_mp->pixelformat = fmt->fourcc;
+
+	if (fmt->fourcc == V4L2_PIX_FMT_JPEG) {
+		struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[0];
+
+		pix_mp->height = clamp(pix_mp->height, MTK_JPEG_MIN_HEIGHT,
+				       MTK_JPEG_MAX_HEIGHT);
+		pix_mp->width = clamp(pix_mp->width, MTK_JPEG_MIN_WIDTH,
+				      MTK_JPEG_MAX_WIDTH);
+
+		pfmt->bytesperline = 0;
+		/* Source size must be aligned to 128 */
+		pfmt->sizeimage = round_up(pfmt->sizeimage, 128);
+		if (pfmt->sizeimage == 0)
+			pfmt->sizeimage = MTK_JPEG_DEFAULT_SIZEIMAGE;
+		return 0;
+	}
+
+	/* other fourcc */
+	pix_mp->height = clamp(round_up(pix_mp->height, fmt->v_align),
+			       MTK_JPEG_MIN_HEIGHT, MTK_JPEG_MAX_HEIGHT);
+	pix_mp->width = clamp(round_up(pix_mp->width, fmt->h_align),
+			      MTK_JPEG_MIN_WIDTH, MTK_JPEG_MAX_WIDTH);
+
+	for (i = 0; i < fmt->colplanes; i++) {
+		struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i];
+		u32 stride = pix_mp->width * fmt->h_sample[i] / 4;
+		u32 h = pix_mp->height * fmt->v_sample[i] / 4;
+
+		pfmt->bytesperline = stride;
+		pfmt->sizeimage = stride * h;
+	}
+	return 0;
+}
+
+static int mtk_jpeg_g_fmt_vid_mplane(struct file *file, void *priv,
+				     struct v4l2_format *f)
+{
+	struct vb2_queue *vq;
+	struct mtk_jpeg_q_data *q_data = NULL;
+	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	int i;
+
+	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+	if (!vq)
+		return -EINVAL;
+
+	q_data = mtk_jpeg_get_q_data(ctx, f->type);
+
+	pix_mp->width = q_data->pix_mp.width;
+	pix_mp->height = q_data->pix_mp.height;
+	pix_mp->field = V4L2_FIELD_NONE;
+	pix_mp->pixelformat = q_data->fmt->fourcc;
+	pix_mp->num_planes = q_data->fmt->colplanes;
+	pix_mp->colorspace = q_data->pix_mp.colorspace;
+	pix_mp->ycbcr_enc = q_data->pix_mp.ycbcr_enc;
+	pix_mp->xfer_func = q_data->pix_mp.xfer_func;
+	pix_mp->quantization = q_data->pix_mp.quantization;
+
+	v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) g_fmt:%c%c%c%c wxh:%ux%u\n",
+		 f->type,
+		 (pix_mp->pixelformat & 0xff),
+		 (pix_mp->pixelformat >>  8 & 0xff),
+		 (pix_mp->pixelformat >> 16 & 0xff),
+		 (pix_mp->pixelformat >> 24 & 0xff),
+		 pix_mp->width, pix_mp->height);
+
+	for (i = 0; i < pix_mp->num_planes; i++) {
+		struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i];
+
+		pfmt->bytesperline = q_data->pix_mp.plane_fmt[i].bytesperline;
+		pfmt->sizeimage = q_data->pix_mp.plane_fmt[i].sizeimage;
+
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev,
+			 "plane[%d] bpl=%u, size=%u\n",
+			 i,
+			 pfmt->bytesperline,
+			 pfmt->sizeimage);
+	}
+	return 0;
+}
+
+static int mtk_jpeg_try_fmt_vid_cap_mplane(struct file *file, void *priv,
+					   struct v4l2_format *f)
+{
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct mtk_jpeg_fmt *fmt;
+
+	fmt = mtk_jpeg_find_format(jpeg->variant->formats,
+				   jpeg->variant->num_formats,
+				   f->fmt.pix_mp.pixelformat,
+				   MTK_JPEG_FMT_FLAG_CAPTURE);
+	if (!fmt)
+		fmt = ctx->cap_q.fmt;
+
+	v4l2_dbg(2, debug, &ctx->jpeg->v4l2_dev, "(%d) try_fmt:%c%c%c%c\n",
+		 f->type,
+		 (fmt->fourcc & 0xff),
+		 (fmt->fourcc >>  8 & 0xff),
+		 (fmt->fourcc >> 16 & 0xff),
+		 (fmt->fourcc >> 24 & 0xff));
+
+	if (ctx->state != MTK_JPEG_INIT) {
+		mtk_jpeg_g_fmt_vid_mplane(file, priv, f);
+		return 0;
+	}
+
+	return mtk_jpeg_try_fmt_mplane(&f->fmt.pix_mp, fmt);
+}
+
+static int mtk_jpeg_try_fmt_vid_out_mplane(struct file *file, void *priv,
+					   struct v4l2_format *f)
+{
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct mtk_jpeg_fmt *fmt;
+
+	fmt = mtk_jpeg_find_format(jpeg->variant->formats,
+				   jpeg->variant->num_formats,
+				   f->fmt.pix_mp.pixelformat,
+				   MTK_JPEG_FMT_FLAG_OUTPUT);
+	if (!fmt)
+		fmt = ctx->out_q.fmt;
+
+	v4l2_dbg(2, debug, &ctx->jpeg->v4l2_dev, "(%d) try_fmt:%c%c%c%c\n",
+		 f->type,
+		 (fmt->fourcc & 0xff),
+		 (fmt->fourcc >>  8 & 0xff),
+		 (fmt->fourcc >> 16 & 0xff),
+		 (fmt->fourcc >> 24 & 0xff));
+
+	if (ctx->state != MTK_JPEG_INIT) {
+		mtk_jpeg_g_fmt_vid_mplane(file, priv, f);
+		return 0;
+	}
+
+	return mtk_jpeg_try_fmt_mplane(&f->fmt.pix_mp, fmt);
+}
+
+static int mtk_jpeg_s_fmt_mplane(struct mtk_jpeg_ctx *ctx,
+				 struct v4l2_format *f, unsigned int fmt_type)
+{
+	struct vb2_queue *vq;
+	struct mtk_jpeg_q_data *q_data = NULL;
+	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	int i;
+
+	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+	if (!vq)
+		return -EINVAL;
+
+	q_data = mtk_jpeg_get_q_data(ctx, f->type);
+
+	if (vb2_is_busy(vq)) {
+		v4l2_err(&jpeg->v4l2_dev, "queue busy\n");
+		return -EBUSY;
+	}
+
+	q_data->fmt = mtk_jpeg_find_format(jpeg->variant->formats,
+					   jpeg->variant->num_formats,
+					   pix_mp->pixelformat, fmt_type);
+	q_data->pix_mp.width = pix_mp->width;
+	q_data->pix_mp.height = pix_mp->height;
+	q_data->enc_crop_rect.width = pix_mp->width;
+	q_data->enc_crop_rect.height = pix_mp->height;
+	q_data->pix_mp.colorspace = V4L2_COLORSPACE_SRGB;
+	q_data->pix_mp.ycbcr_enc = V4L2_YCBCR_ENC_601;
+	q_data->pix_mp.xfer_func = V4L2_XFER_FUNC_SRGB;
+	q_data->pix_mp.quantization = V4L2_QUANTIZATION_FULL_RANGE;
+
+	v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) s_fmt:%c%c%c%c wxh:%ux%u\n",
+		 f->type,
+		 (q_data->fmt->fourcc & 0xff),
+		 (q_data->fmt->fourcc >>  8 & 0xff),
+		 (q_data->fmt->fourcc >> 16 & 0xff),
+		 (q_data->fmt->fourcc >> 24 & 0xff),
+		 q_data->pix_mp.width, q_data->pix_mp.height);
+
+	for (i = 0; i < q_data->fmt->colplanes; i++) {
+		q_data->pix_mp.plane_fmt[i].bytesperline =
+					pix_mp->plane_fmt[i].bytesperline;
+		q_data->pix_mp.plane_fmt[i].sizeimage =
+					pix_mp->plane_fmt[i].sizeimage;
+
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev,
+			 "plane[%d] bpl=%u, size=%u\n",
+			 i, q_data->pix_mp.plane_fmt[i].bytesperline,
+			 q_data->pix_mp.plane_fmt[i].sizeimage);
+	}
+
+	return 0;
+}
+
+static int mtk_jpeg_s_fmt_vid_out_mplane(struct file *file, void *priv,
+					 struct v4l2_format *f)
+{
+	int ret;
+
+	ret = mtk_jpeg_try_fmt_vid_out_mplane(file, priv, f);
+	if (ret)
+		return ret;
+
+	return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f,
+				     MTK_JPEG_FMT_FLAG_OUTPUT);
+}
+
+static int mtk_jpeg_s_fmt_vid_cap_mplane(struct file *file, void *priv,
+					 struct v4l2_format *f)
+{
+	int ret;
+
+	ret = mtk_jpeg_try_fmt_vid_cap_mplane(file, priv, f);
+	if (ret)
+		return ret;
+
+	return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f,
+				     MTK_JPEG_FMT_FLAG_CAPTURE);
+}
+
+static void mtk_jpeg_queue_src_chg_event(struct mtk_jpeg_ctx *ctx)
+{
+	static const struct v4l2_event ev_src_ch = {
+		.type = V4L2_EVENT_SOURCE_CHANGE,
+		.u.src_change.changes =
+		V4L2_EVENT_SRC_CH_RESOLUTION,
+	};
+
+	v4l2_event_queue_fh(&ctx->fh, &ev_src_ch);
+}
+
+static int mtk_jpeg_subscribe_event(struct v4l2_fh *fh,
+				    const struct v4l2_event_subscription *sub)
+{
+	switch (sub->type) {
+	case V4L2_EVENT_SOURCE_CHANGE:
+		return v4l2_src_change_event_subscribe(fh, sub);
+	}
+
+	return v4l2_ctrl_subscribe_event(fh, sub);
+}
+
+static int mtk_jpeg_enc_g_selection(struct file *file, void *priv,
+				    struct v4l2_selection *s)
+{
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_CROP:
+		s->r = ctx->out_q.enc_crop_rect;
+		break;
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+		s->r.width = ctx->out_q.pix_mp.width;
+		s->r.height = ctx->out_q.pix_mp.height;
+		s->r.left = 0;
+		s->r.top = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+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);
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_COMPOSE:
+	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+		s->r.width = ctx->out_q.pix_mp.width;
+		s->r.height = ctx->out_q.pix_mp.height;
+		s->r.left = 0;
+		s->r.top = 0;
+		break;
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+	case V4L2_SEL_TGT_COMPOSE_PADDED:
+		s->r.width = ctx->cap_q.pix_mp.width;
+		s->r.height = ctx->cap_q.pix_mp.height;
+		s->r.left = 0;
+		s->r.top = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int mtk_jpeg_enc_s_selection(struct file *file, void *priv,
+				    struct v4l2_selection *s)
+{
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_CROP:
+		s->r.left = 0;
+		s->r.top = 0;
+		s->r.width = min(s->r.width, ctx->out_q.pix_mp.width);
+		s->r.height = min(s->r.height, ctx->out_q.pix_mp.height);
+		ctx->out_q.enc_crop_rect = s->r;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct v4l2_ioctl_ops mtk_jpeg_enc_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,
+	.vidioc_try_fmt_vid_cap_mplane	= mtk_jpeg_try_fmt_vid_cap_mplane,
+	.vidioc_try_fmt_vid_out_mplane	= mtk_jpeg_try_fmt_vid_out_mplane,
+	.vidioc_g_fmt_vid_cap_mplane    = mtk_jpeg_g_fmt_vid_mplane,
+	.vidioc_g_fmt_vid_out_mplane    = mtk_jpeg_g_fmt_vid_mplane,
+	.vidioc_s_fmt_vid_cap_mplane    = mtk_jpeg_s_fmt_vid_cap_mplane,
+	.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_enc_g_selection,
+	.vidioc_s_selection		= mtk_jpeg_enc_s_selection,
+
+	.vidioc_create_bufs		= v4l2_m2m_ioctl_create_bufs,
+	.vidioc_prepare_buf		= v4l2_m2m_ioctl_prepare_buf,
+	.vidioc_reqbufs                 = v4l2_m2m_ioctl_reqbufs,
+	.vidioc_querybuf                = v4l2_m2m_ioctl_querybuf,
+	.vidioc_dqbuf                   = v4l2_m2m_ioctl_dqbuf,
+	.vidioc_expbuf                  = v4l2_m2m_ioctl_expbuf,
+	.vidioc_streamon                = v4l2_m2m_ioctl_streamon,
+	.vidioc_streamoff               = v4l2_m2m_ioctl_streamoff,
+
+	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+};
+
+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,
+	.vidioc_try_fmt_vid_cap_mplane	= mtk_jpeg_try_fmt_vid_cap_mplane,
+	.vidioc_try_fmt_vid_out_mplane	= mtk_jpeg_try_fmt_vid_out_mplane,
+	.vidioc_g_fmt_vid_cap_mplane    = mtk_jpeg_g_fmt_vid_mplane,
+	.vidioc_g_fmt_vid_out_mplane    = mtk_jpeg_g_fmt_vid_mplane,
+	.vidioc_s_fmt_vid_cap_mplane    = mtk_jpeg_s_fmt_vid_cap_mplane,
+	.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_dec_g_selection,
+
+	.vidioc_create_bufs		= v4l2_m2m_ioctl_create_bufs,
+	.vidioc_prepare_buf		= v4l2_m2m_ioctl_prepare_buf,
+	.vidioc_reqbufs                 = v4l2_m2m_ioctl_reqbufs,
+	.vidioc_querybuf                = v4l2_m2m_ioctl_querybuf,
+	.vidioc_dqbuf                   = v4l2_m2m_ioctl_dqbuf,
+	.vidioc_expbuf                  = v4l2_m2m_ioctl_expbuf,
+	.vidioc_streamon                = v4l2_m2m_ioctl_streamon,
+	.vidioc_streamoff               = v4l2_m2m_ioctl_streamoff,
+
+	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+};
+
+static int mtk_jpeg_queue_setup(struct vb2_queue *q,
+				unsigned int *num_buffers,
+				unsigned int *num_planes,
+				unsigned int sizes[],
+				struct device *alloc_ctxs[])
+{
+	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
+	struct mtk_jpeg_q_data *q_data = NULL;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	int i;
+
+	v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) buf_req count=%u\n",
+		 q->type, *num_buffers);
+
+	q_data = mtk_jpeg_get_q_data(ctx, q->type);
+	if (!q_data)
+		return -EINVAL;
+
+	if (*num_planes) {
+		for (i = 0; i < *num_planes; i++)
+			if (sizes[i] < q_data->pix_mp.plane_fmt[i].sizeimage)
+				return -EINVAL;
+		return 0;
+	}
+
+	*num_planes = q_data->fmt->colplanes;
+	for (i = 0; i < q_data->fmt->colplanes; i++) {
+		sizes[i] =  q_data->pix_mp.plane_fmt[i].sizeimage;
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev, "sizeimage[%d]=%u\n",
+			 i, sizes[i]);
+	}
+
+	return 0;
+}
+
+static int mtk_jpeg_buf_prepare(struct vb2_buffer *vb)
+{
+	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	struct mtk_jpeg_q_data *q_data = NULL;
+	struct v4l2_plane_pix_format plane_fmt;
+	int i;
+
+	q_data = mtk_jpeg_get_q_data(ctx, vb->vb2_queue->type);
+	if (!q_data)
+		return -EINVAL;
+
+	for (i = 0; i < q_data->fmt->colplanes; i++) {
+		plane_fmt = q_data->pix_mp.plane_fmt[i];
+		if (ctx->enable_exif &&
+		    q_data->fmt->fourcc == V4L2_PIX_FMT_JPEG)
+			vb2_set_plane_payload(vb, i, plane_fmt.sizeimage +
+					      MTK_JPEG_MAX_EXIF_SIZE);
+		else
+			vb2_set_plane_payload(vb, i,  plane_fmt.sizeimage);
+	}
+
+	return 0;
+}
+
+static bool mtk_jpeg_check_resolution_change(struct mtk_jpeg_ctx *ctx,
+					     struct mtk_jpeg_dec_param *param)
+{
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct mtk_jpeg_q_data *q_data;
+
+	q_data = &ctx->out_q;
+	if (q_data->pix_mp.width != param->pic_w ||
+	    q_data->pix_mp.height != param->pic_h) {
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Picture size change\n");
+		return true;
+	}
+
+	q_data = &ctx->cap_q;
+	if (q_data->fmt !=
+	    mtk_jpeg_find_format(jpeg->variant->formats,
+				 jpeg->variant->num_formats, param->dst_fourcc,
+				 MTK_JPEG_FMT_FLAG_CAPTURE)) {
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev, "format change\n");
+		return true;
+	}
+	return false;
+}
+
+static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx *ctx,
+				    struct mtk_jpeg_dec_param *param)
+{
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct mtk_jpeg_q_data *q_data;
+	int i;
+
+	q_data = &ctx->out_q;
+	q_data->pix_mp.width = param->pic_w;
+	q_data->pix_mp.height = param->pic_h;
+
+	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(jpeg->variant->formats,
+					   jpeg->variant->num_formats,
+					   param->dst_fourcc,
+					   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];
+		q_data->pix_mp.plane_fmt[i].sizeimage = param->comp_size[i];
+	}
+
+	v4l2_dbg(1, debug, &jpeg->v4l2_dev,
+		 "set_parse cap:%c%c%c%c pic(%u, %u), buf(%u, %u)\n",
+		 (param->dst_fourcc & 0xff),
+		 (param->dst_fourcc >>  8 & 0xff),
+		 (param->dst_fourcc >> 16 & 0xff),
+		 (param->dst_fourcc >> 24 & 0xff),
+		 param->pic_w, param->pic_h,
+		 param->dec_w, param->dec_h);
+}
+
+static void mtk_jpeg_enc_buf_queue(struct vb2_buffer *vb)
+{
+	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+
+	v4l2_dbg(2, debug, &jpeg->v4l2_dev, "(%d) buf_q id=%d, vb=%p\n",
+		 vb->vb2_queue->type, vb->index, vb);
+
+	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, to_vb2_v4l2_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;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct mtk_jpeg_src_buf *jpeg_src_buf;
+	bool header_valid;
+
+	v4l2_dbg(2, debug, &jpeg->v4l2_dev, "(%d) buf_q id=%d, vb=%p\n",
+		 vb->vb2_queue->type, vb->index, vb);
+
+	if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		goto end;
+
+	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
+	param = &jpeg_src_buf->dec_param;
+	memset(param, 0, sizeof(*param));
+
+	header_valid = mtk_jpeg_parse(param, (u8 *)vb2_plane_vaddr(vb, 0),
+				      vb2_get_plane_payload(vb, 0));
+	if (!header_valid) {
+		v4l2_err(&jpeg->v4l2_dev, "Header invalid.\n");
+		vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
+		return;
+	}
+
+	if (ctx->state == MTK_JPEG_INIT) {
+		struct vb2_queue *dst_vq = v4l2_m2m_get_vq(
+			ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
+
+		mtk_jpeg_queue_src_chg_event(ctx);
+		mtk_jpeg_set_queue_data(ctx, param);
+		ctx->state = vb2_is_streaming(dst_vq) ?
+				MTK_JPEG_SOURCE_CHANGE : MTK_JPEG_RUNNING;
+	}
+end:
+	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, to_vb2_v4l2_buffer(vb));
+}
+
+static struct vb2_v4l2_buffer *mtk_jpeg_buf_remove(struct mtk_jpeg_ctx *ctx,
+				 enum v4l2_buf_type type)
+{
+	if (V4L2_TYPE_IS_OUTPUT(type))
+		return v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	else
+		return v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+}
+
+static void mtk_jpeg_enc_stop_streaming(struct vb2_queue *q)
+{
+	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
+	struct vb2_v4l2_buffer *vb;
+
+	while ((vb = mtk_jpeg_buf_remove(ctx, q->type)))
+		v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR);
+}
+
+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;
+
+	/*
+	 * STREAMOFF is an acknowledgment for source change event.
+	 * Before STREAMOFF, we still have to return the old resolution and
+	 * subsampling. Update capture queue when the stream is off.
+	 */
+	if (ctx->state == MTK_JPEG_SOURCE_CHANGE &&
+	    V4L2_TYPE_IS_CAPTURE(q->type)) {
+		struct mtk_jpeg_src_buf *src_buf;
+
+		vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+		src_buf = mtk_jpeg_vb2_to_srcbuf(&vb->vb2_buf);
+		mtk_jpeg_set_queue_data(ctx, &src_buf->dec_param);
+		ctx->state = MTK_JPEG_RUNNING;
+	} else if (V4L2_TYPE_IS_OUTPUT(q->type)) {
+		ctx->state = MTK_JPEG_INIT;
+	}
+
+	while ((vb = mtk_jpeg_buf_remove(ctx, q->type)))
+		v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR);
+}
+
+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_dec_buf_queue,
+	.wait_prepare       = vb2_ops_wait_prepare,
+	.wait_finish        = vb2_ops_wait_finish,
+	.stop_streaming     = mtk_jpeg_dec_stop_streaming,
+};
+
+static const struct vb2_ops mtk_jpeg_enc_qops = {
+	.queue_setup        = mtk_jpeg_queue_setup,
+	.buf_prepare        = mtk_jpeg_buf_prepare,
+	.buf_queue          = mtk_jpeg_enc_buf_queue,
+	.wait_prepare       = vb2_ops_wait_prepare,
+	.wait_finish        = vb2_ops_wait_finish,
+	.stop_streaming     = mtk_jpeg_enc_stop_streaming,
+};
+
+static void mtk_jpeg_set_dec_src(struct mtk_jpeg_ctx *ctx,
+				 struct vb2_buffer *src_buf,
+				 struct mtk_jpeg_bs *bs)
+{
+	bs->str_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
+	bs->end_addr = bs->str_addr +
+		       round_up(vb2_get_plane_payload(src_buf, 0), 16);
+	bs->size = round_up(vb2_plane_size(src_buf, 0), 128);
+}
+
+static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx,
+				struct mtk_jpeg_dec_param *param,
+				struct vb2_buffer *dst_buf,
+				struct mtk_jpeg_fb *fb)
+{
+	int i;
+
+	if (param->comp_num != dst_buf->num_planes) {
+		dev_err(ctx->jpeg->dev, "plane number mismatch (%u != %u)\n",
+			param->comp_num, dst_buf->num_planes);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < dst_buf->num_planes; i++) {
+		if (vb2_plane_size(dst_buf, i) < param->comp_size[i]) {
+			dev_err(ctx->jpeg->dev,
+				"buffer size is underflow (%lu < %u)\n",
+				vb2_plane_size(dst_buf, 0),
+				param->comp_size[i]);
+			return -EINVAL;
+		}
+		fb->plane_addr[i] = vb2_dma_contig_plane_dma_addr(dst_buf, i);
+	}
+
+	return 0;
+}
+
+static void mtk_jpeg_enc_device_run(void *priv)
+{
+	struct mtk_jpeg_ctx *ctx = priv;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+	unsigned long flags;
+	int ret;
+
+	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+
+	ret = pm_runtime_resume_and_get(jpeg->dev);
+	if (ret < 0)
+		goto enc_end;
+
+	schedule_delayed_work(&jpeg->job_timeout_work,
+			      msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
+
+	spin_lock_irqsave(&jpeg->hw_lock, flags);
+
+	/*
+	 * Resetting the hardware every frame is to ensure that all the
+	 * registers are cleared. This is a hardware requirement.
+	 */
+	mtk_jpeg_enc_reset(jpeg->reg_base);
+
+	mtk_jpeg_set_enc_src(ctx, jpeg->reg_base, &src_buf->vb2_buf);
+	mtk_jpeg_set_enc_dst(ctx, jpeg->reg_base, &dst_buf->vb2_buf);
+	mtk_jpeg_set_enc_params(ctx, jpeg->reg_base);
+	mtk_jpeg_enc_start(jpeg->reg_base);
+	spin_unlock_irqrestore(&jpeg->hw_lock, flags);
+	return;
+
+enc_end:
+	v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_buf_done(src_buf, buf_state);
+	v4l2_m2m_buf_done(dst_buf, buf_state);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+}
+
+static void mtk_jpeg_dec_device_run(void *priv)
+{
+	struct mtk_jpeg_ctx *ctx = priv;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+	unsigned long flags;
+	struct mtk_jpeg_src_buf *jpeg_src_buf;
+	struct mtk_jpeg_bs bs;
+	struct mtk_jpeg_fb fb;
+	int ret;
+
+	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf);
+
+	if (mtk_jpeg_check_resolution_change(ctx, &jpeg_src_buf->dec_param)) {
+		mtk_jpeg_queue_src_chg_event(ctx);
+		ctx->state = MTK_JPEG_SOURCE_CHANGE;
+		v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+		return;
+	}
+
+	ret = pm_runtime_resume_and_get(jpeg->dev);
+	if (ret < 0)
+		goto dec_end;
+
+	schedule_delayed_work(&jpeg->job_timeout_work,
+			      msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
+
+	mtk_jpeg_set_dec_src(ctx, &src_buf->vb2_buf, &bs);
+	if (mtk_jpeg_set_dec_dst(ctx, &jpeg_src_buf->dec_param, &dst_buf->vb2_buf, &fb))
+		goto dec_end;
+
+	spin_lock_irqsave(&jpeg->hw_lock, flags);
+	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->reg_base);
+	spin_unlock_irqrestore(&jpeg->hw_lock, flags);
+	return;
+
+dec_end:
+	v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_buf_done(src_buf, buf_state);
+	v4l2_m2m_buf_done(dst_buf, buf_state);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+}
+
+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_enc_m2m_ops = {
+	.device_run = mtk_jpeg_enc_device_run,
+};
+
+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,
+			       struct vb2_queue *dst_vq)
+{
+	struct mtk_jpeg_ctx *ctx = priv;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	int ret;
+
+	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+	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 = jpeg->variant->qops;
+	src_vq->mem_ops = &vb2_dma_contig_memops;
+	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	src_vq->lock = &ctx->jpeg->lock;
+	src_vq->dev = ctx->jpeg->dev;
+	ret = vb2_queue_init(src_vq);
+	if (ret)
+		return ret;
+
+	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	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 = jpeg->variant->qops;
+	dst_vq->mem_ops = &vb2_dma_contig_memops;
+	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	dst_vq->lock = &ctx->jpeg->lock;
+	dst_vq->dev = ctx->jpeg->dev;
+	ret = vb2_queue_init(dst_vq);
+
+	return ret;
+}
+
+static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg)
+{
+	int ret;
+
+	ret = clk_bulk_prepare_enable(jpeg->variant->num_clks,
+				      jpeg->variant->clks);
+	if (ret)
+		dev_err(jpeg->dev, "Failed to open jpeg clk: %d\n", ret);
+}
+
+static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg)
+{
+	clk_bulk_disable_unprepare(jpeg->variant->num_clks,
+				   jpeg->variant->clks);
+}
+
+static irqreturn_t mtk_jpeg_enc_done(struct mtk_jpeg_dev *jpeg)
+{
+	struct mtk_jpeg_ctx *ctx;
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+	u32 result_size;
+
+	ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
+	if (!ctx) {
+		v4l2_err(&jpeg->v4l2_dev, "Context is NULL\n");
+		return IRQ_HANDLED;
+	}
+
+	src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+
+	result_size = mtk_jpeg_enc_get_file_size(jpeg->reg_base);
+	vb2_set_plane_payload(&dst_buf->vb2_buf, 0, result_size);
+
+	buf_state = VB2_BUF_STATE_DONE;
+
+	v4l2_m2m_buf_done(src_buf, buf_state);
+	v4l2_m2m_buf_done(dst_buf, buf_state);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+	pm_runtime_put(ctx->jpeg->dev);
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t mtk_jpeg_enc_irq(int irq, void *priv)
+{
+	struct mtk_jpeg_dev *jpeg = priv;
+	u32 irq_status;
+	irqreturn_t ret = IRQ_NONE;
+
+	cancel_delayed_work(&jpeg->job_timeout_work);
+
+	irq_status = readl(jpeg->reg_base + JPEG_ENC_INT_STS) &
+		     JPEG_ENC_INT_STATUS_MASK_ALLIRQ;
+	if (irq_status)
+		writel(0, jpeg->reg_base + JPEG_ENC_INT_STS);
+
+	if (!(irq_status & JPEG_ENC_INT_STATUS_DONE))
+		return ret;
+
+	ret = mtk_jpeg_enc_done(jpeg);
+	return ret;
+}
+
+static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
+{
+	struct mtk_jpeg_dev *jpeg = priv;
+	struct mtk_jpeg_ctx *ctx;
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+	struct mtk_jpeg_src_buf *jpeg_src_buf;
+	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+	u32	dec_irq_ret;
+	u32 dec_ret;
+	int i;
+
+	cancel_delayed_work(&jpeg->job_timeout_work);
+
+	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) {
+		v4l2_err(&jpeg->v4l2_dev, "Context is NULL\n");
+		return IRQ_HANDLED;
+	}
+
+	src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+	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->reg_base);
+
+	if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
+		dev_err(jpeg->dev, "decode failed\n");
+		goto dec_end;
+	}
+
+	for (i = 0; i < dst_buf->vb2_buf.num_planes; i++)
+		vb2_set_plane_payload(&dst_buf->vb2_buf, i,
+				      jpeg_src_buf->dec_param.comp_size[i]);
+
+	buf_state = VB2_BUF_STATE_DONE;
+
+dec_end:
+	v4l2_m2m_buf_done(src_buf, buf_state);
+	v4l2_m2m_buf_done(dst_buf, buf_state);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+	pm_runtime_put(ctx->jpeg->dev);
+	return IRQ_HANDLED;
+}
+
+static void mtk_jpeg_set_default_params(struct mtk_jpeg_ctx *ctx)
+{
+	struct mtk_jpeg_q_data *q = &ctx->out_q;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+
+	ctx->fh.ctrl_handler = &ctx->ctrl_hdl;
+	q->pix_mp.colorspace = V4L2_COLORSPACE_SRGB;
+	q->pix_mp.ycbcr_enc = V4L2_YCBCR_ENC_601;
+	q->pix_mp.quantization = V4L2_QUANTIZATION_FULL_RANGE;
+	q->pix_mp.xfer_func = V4L2_XFER_FUNC_SRGB;
+
+	q->fmt = mtk_jpeg_find_format(jpeg->variant->formats,
+				      jpeg->variant->num_formats,
+				      jpeg->variant->out_q_default_fourcc,
+				      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(jpeg->variant->formats,
+				      jpeg->variant->num_formats,
+				      jpeg->variant->cap_q_default_fourcc,
+				      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;
+	q->pix_mp.xfer_func = V4L2_XFER_FUNC_SRGB;
+	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);
+}
+
+static int mtk_jpeg_open(struct file *file)
+{
+	struct mtk_jpeg_dev *jpeg = video_drvdata(file);
+	struct video_device *vfd = video_devdata(file);
+	struct mtk_jpeg_ctx *ctx;
+	int ret = 0;
+
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	if (mutex_lock_interruptible(&jpeg->lock)) {
+		ret = -ERESTARTSYS;
+		goto free;
+	}
+
+	v4l2_fh_init(&ctx->fh, vfd);
+	file->private_data = &ctx->fh;
+	v4l2_fh_add(&ctx->fh);
+
+	ctx->jpeg = jpeg;
+	ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx,
+					    mtk_jpeg_queue_init);
+	if (IS_ERR(ctx->fh.m2m_ctx)) {
+		ret = PTR_ERR(ctx->fh.m2m_ctx);
+		goto error;
+	}
+
+	if (jpeg->variant->cap_q_default_fourcc == V4L2_PIX_FMT_JPEG) {
+		ret = mtk_jpeg_enc_ctrls_setup(ctx);
+		if (ret) {
+			v4l2_err(&jpeg->v4l2_dev, "Failed to setup jpeg enc controls\n");
+			goto error;
+		}
+	} else {
+		v4l2_ctrl_handler_init(&ctx->ctrl_hdl, 0);
+	}
+	mtk_jpeg_set_default_params(ctx);
+	mutex_unlock(&jpeg->lock);
+	return 0;
+
+error:
+	v4l2_fh_del(&ctx->fh);
+	v4l2_fh_exit(&ctx->fh);
+	mutex_unlock(&jpeg->lock);
+free:
+	kfree(ctx);
+	return ret;
+}
+
+static int mtk_jpeg_release(struct file *file)
+{
+	struct mtk_jpeg_dev *jpeg = video_drvdata(file);
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(file->private_data);
+
+	mutex_lock(&jpeg->lock);
+	v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
+	v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
+	v4l2_fh_del(&ctx->fh);
+	v4l2_fh_exit(&ctx->fh);
+	kfree(ctx);
+	mutex_unlock(&jpeg->lock);
+	return 0;
+}
+
+static const struct v4l2_file_operations mtk_jpeg_fops = {
+	.owner          = THIS_MODULE,
+	.open           = mtk_jpeg_open,
+	.release        = mtk_jpeg_release,
+	.poll           = v4l2_m2m_fop_poll,
+	.unlocked_ioctl = video_ioctl2,
+	.mmap           = v4l2_m2m_fop_mmap,
+};
+
+static struct clk_bulk_data mt8173_jpeg_dec_clocks[] = {
+	{ .id = "jpgdec-smi" },
+	{ .id = "jpgdec" },
+};
+
+static struct clk_bulk_data mtk_jpeg_clocks[] = {
+	{ .id = "jpgenc" },
+};
+
+static void mtk_jpeg_job_timeout_work(struct work_struct *work)
+{
+	struct mtk_jpeg_dev *jpeg = container_of(work, struct mtk_jpeg_dev,
+						 job_timeout_work.work);
+	struct mtk_jpeg_ctx *ctx;
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+
+	ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
+	src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+
+	jpeg->variant->hw_reset(jpeg->reg_base);
+
+	pm_runtime_put(jpeg->dev);
+
+	v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
+	v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+}
+
+static int mtk_jpeg_probe(struct platform_device *pdev)
+{
+	struct mtk_jpeg_dev *jpeg;
+	int jpeg_irq;
+	int ret;
+
+	jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL);
+	if (!jpeg)
+		return -ENOMEM;
+
+	mutex_init(&jpeg->lock);
+	spin_lock_init(&jpeg->hw_lock);
+	jpeg->dev = &pdev->dev;
+	jpeg->variant = of_device_get_match_data(jpeg->dev);
+	INIT_DELAYED_WORK(&jpeg->job_timeout_work, mtk_jpeg_job_timeout_work);
+
+	jpeg->reg_base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(jpeg->reg_base)) {
+		ret = PTR_ERR(jpeg->reg_base);
+		return ret;
+	}
+
+	jpeg_irq = platform_get_irq(pdev, 0);
+	if (jpeg_irq < 0)
+		return jpeg_irq;
+
+	ret = devm_request_irq(&pdev->dev, jpeg_irq,
+			       jpeg->variant->irq_handler, 0, pdev->name, jpeg);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to request jpeg_irq %d (%d)\n",
+			jpeg_irq, ret);
+		goto err_req_irq;
+	}
+
+	ret = devm_clk_bulk_get(jpeg->dev, jpeg->variant->num_clks,
+				jpeg->variant->clks);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to init clk, err %d\n", ret);
+		goto err_clk_init;
+	}
+
+	ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to register v4l2 device\n");
+		ret = -EINVAL;
+		goto err_dev_register;
+	}
+
+	jpeg->m2m_dev = v4l2_m2m_init(jpeg->variant->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->vdev = video_device_alloc();
+	if (!jpeg->vdev) {
+		ret = -ENOMEM;
+		goto err_vfd_jpeg_alloc;
+	}
+	snprintf(jpeg->vdev->name, sizeof(jpeg->vdev->name),
+		 "%s", jpeg->variant->dev_name);
+	jpeg->vdev->fops = &mtk_jpeg_fops;
+	jpeg->vdev->ioctl_ops = jpeg->variant->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_vfd_jpeg_register;
+	}
+
+	video_set_drvdata(jpeg->vdev, jpeg);
+	v4l2_info(&jpeg->v4l2_dev,
+		  "%s device registered as /dev/video%d (%d,%d)\n",
+		  jpeg->variant->dev_name, jpeg->vdev->num,
+		  VIDEO_MAJOR, jpeg->vdev->minor);
+
+	platform_set_drvdata(pdev, jpeg);
+
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+
+err_vfd_jpeg_register:
+	video_device_release(jpeg->vdev);
+
+err_vfd_jpeg_alloc:
+	v4l2_m2m_release(jpeg->m2m_dev);
+
+err_m2m_init:
+	v4l2_device_unregister(&jpeg->v4l2_dev);
+
+err_dev_register:
+
+err_clk_init:
+
+err_req_irq:
+
+	return ret;
+}
+
+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->vdev);
+	video_device_release(jpeg->vdev);
+	v4l2_m2m_release(jpeg->m2m_dev);
+	v4l2_device_unregister(&jpeg->v4l2_dev);
+
+	return 0;
+}
+
+static __maybe_unused int mtk_jpeg_pm_suspend(struct device *dev)
+{
+	struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
+
+	mtk_jpeg_clk_off(jpeg);
+
+	return 0;
+}
+
+static __maybe_unused int mtk_jpeg_pm_resume(struct device *dev)
+{
+	struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
+
+	mtk_jpeg_clk_on(jpeg);
+
+	return 0;
+}
+
+static __maybe_unused int mtk_jpeg_suspend(struct device *dev)
+{
+	struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
+
+	v4l2_m2m_suspend(jpeg->m2m_dev);
+	return pm_runtime_force_suspend(dev);
+}
+
+static __maybe_unused int mtk_jpeg_resume(struct device *dev)
+{
+	struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
+	int ret;
+
+	ret = pm_runtime_force_resume(dev);
+	if (ret < 0)
+		return ret;
+
+	v4l2_m2m_resume(jpeg->m2m_dev);
+	return ret;
+}
+
+static const struct dev_pm_ops mtk_jpeg_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(mtk_jpeg_suspend, mtk_jpeg_resume)
+	SET_RUNTIME_PM_OPS(mtk_jpeg_pm_suspend, mtk_jpeg_pm_resume, NULL)
+};
+
+static const struct mtk_jpeg_variant mt8173_jpeg_drvdata = {
+	.clks = mt8173_jpeg_dec_clocks,
+	.num_clks = ARRAY_SIZE(mt8173_jpeg_dec_clocks),
+	.formats = mtk_jpeg_dec_formats,
+	.num_formats = MTK_JPEG_DEC_NUM_FORMATS,
+	.qops = &mtk_jpeg_dec_qops,
+	.irq_handler = mtk_jpeg_dec_irq,
+	.hw_reset = mtk_jpeg_dec_reset,
+	.m2m_ops = &mtk_jpeg_dec_m2m_ops,
+	.dev_name = "mtk-jpeg-dec",
+	.ioctl_ops = &mtk_jpeg_dec_ioctl_ops,
+	.out_q_default_fourcc = V4L2_PIX_FMT_JPEG,
+	.cap_q_default_fourcc = V4L2_PIX_FMT_YUV420M,
+};
+
+static const struct mtk_jpeg_variant mtk_jpeg_drvdata = {
+	.clks = mtk_jpeg_clocks,
+	.num_clks = ARRAY_SIZE(mtk_jpeg_clocks),
+	.formats = mtk_jpeg_enc_formats,
+	.num_formats = MTK_JPEG_ENC_NUM_FORMATS,
+	.qops = &mtk_jpeg_enc_qops,
+	.irq_handler = mtk_jpeg_enc_irq,
+	.hw_reset = mtk_jpeg_enc_reset,
+	.m2m_ops = &mtk_jpeg_enc_m2m_ops,
+	.dev_name = "mtk-jpeg-enc",
+	.ioctl_ops = &mtk_jpeg_enc_ioctl_ops,
+	.out_q_default_fourcc = V4L2_PIX_FMT_YUYV,
+	.cap_q_default_fourcc = V4L2_PIX_FMT_JPEG,
+};
+
+static const struct of_device_id mtk_jpeg_match[] = {
+	{
+		.compatible = "mediatek,mt8173-jpgdec",
+		.data = &mt8173_jpeg_drvdata,
+	},
+	{
+		.compatible = "mediatek,mt2701-jpgdec",
+		.data = &mt8173_jpeg_drvdata,
+	},
+	{
+		.compatible = "mediatek,mtk-jpgenc",
+		.data = &mtk_jpeg_drvdata,
+	},
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, mtk_jpeg_match);
+
+static struct platform_driver mtk_jpeg_driver = {
+	.probe = mtk_jpeg_probe,
+	.remove = mtk_jpeg_remove,
+	.driver = {
+		.name           = MTK_JPEG_NAME,
+		.of_match_table = mtk_jpeg_match,
+		.pm             = &mtk_jpeg_pm_ops,
+	},
+};
+
+module_platform_driver(mtk_jpeg_driver);
+
+MODULE_DESCRIPTION("MediaTek JPEG codec driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
new file mode 100644
index 000000000000..3e4811a41ba2
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
@@ -0,0 +1,163 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@mediatek.com>
+ *         Xia Jiang <xia.jiang@mediatek.com>
+ */
+
+#ifndef _MTK_JPEG_CORE_H
+#define _MTK_JPEG_CORE_H
+
+#include <linux/interrupt.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fh.h>
+
+#define MTK_JPEG_NAME		"mtk-jpeg"
+
+#define MTK_JPEG_COMP_MAX		3
+
+#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
+#define MTK_JPEG_MAX_WIDTH	65535U
+#define MTK_JPEG_MAX_HEIGHT	65535U
+
+#define MTK_JPEG_DEFAULT_SIZEIMAGE	(1 * 1024 * 1024)
+
+#define MTK_JPEG_HW_TIMEOUT_MSEC 1000
+
+#define MTK_JPEG_MAX_EXIF_SIZE	(64 * 1024)
+
+/**
+ * enum mtk_jpeg_ctx_state - states of the context state machine
+ * @MTK_JPEG_INIT:		current state is initialized
+ * @MTK_JPEG_RUNNING:		current state is running
+ * @MTK_JPEG_SOURCE_CHANGE:	current state is source resolution change
+ */
+enum mtk_jpeg_ctx_state {
+	MTK_JPEG_INIT = 0,
+	MTK_JPEG_RUNNING,
+	MTK_JPEG_SOURCE_CHANGE,
+};
+
+/**
+ * struct mtk_jpeg_variant - mtk jpeg driver variant
+ * @clks:			clock names
+ * @num_clks:			numbers of clock
+ * @formats:			jpeg driver's internal color format
+ * @num_formats:		number of formats
+ * @qops:			the callback of jpeg vb2_ops
+ * @irq_handler:		jpeg irq handler callback
+ * @hw_reset:			jpeg hardware reset callback
+ * @m2m_ops:			the callback of jpeg v4l2_m2m_ops
+ * @dev_name:			jpeg device name
+ * @ioctl_ops:			the callback of jpeg v4l2_ioctl_ops
+ * @out_q_default_fourcc:	output queue default fourcc
+ * @cap_q_default_fourcc:	capture queue default fourcc
+ */
+struct mtk_jpeg_variant {
+	struct clk_bulk_data *clks;
+	int num_clks;
+	struct mtk_jpeg_fmt *formats;
+	int num_formats;
+	const struct vb2_ops *qops;
+	irqreturn_t (*irq_handler)(int irq, void *priv);
+	void (*hw_reset)(void __iomem *base);
+	const struct v4l2_m2m_ops *m2m_ops;
+	const char *dev_name;
+	const struct v4l2_ioctl_ops *ioctl_ops;
+	u32 out_q_default_fourcc;
+	u32 cap_q_default_fourcc;
+};
+
+/**
+ * struct mtk_jpeg_dev - JPEG IP abstraction
+ * @lock:		the mutex protecting this structure
+ * @hw_lock:		spinlock protecting the hw device resource
+ * @workqueue:		decode work queue
+ * @dev:		JPEG device
+ * @v4l2_dev:		v4l2 device for mem2mem mode
+ * @m2m_dev:		v4l2 mem2mem device data
+ * @alloc_ctx:		videobuf2 memory allocator's context
+ * @vdev:		video device node for jpeg mem2mem mode
+ * @reg_base:		JPEG registers mapping
+ * @job_timeout_work:	IRQ timeout structure
+ * @variant:		driver variant to be used
+ */
+struct mtk_jpeg_dev {
+	struct mutex		lock;
+	spinlock_t		hw_lock;
+	struct workqueue_struct	*workqueue;
+	struct device		*dev;
+	struct v4l2_device	v4l2_dev;
+	struct v4l2_m2m_dev	*m2m_dev;
+	void			*alloc_ctx;
+	struct video_device	*vdev;
+	void __iomem		*reg_base;
+	struct delayed_work job_timeout_work;
+	const struct mtk_jpeg_variant *variant;
+};
+
+/**
+ * struct mtk_jpeg_fmt - driver's internal color format data
+ * @fourcc:	the fourcc code, 0 if not applicable
+ * @hw_format:	hardware format value
+ * @h_sample:	horizontal sample count of plane in 4 * 4 pixel image
+ * @v_sample:	vertical sample count of plane in 4 * 4 pixel image
+ * @colplanes:	number of color planes (1 for packed formats)
+ * @h_align:	horizontal alignment order (align to 2^h_align)
+ * @v_align:	vertical alignment order (align to 2^v_align)
+ * @flags:	flags describing format applicability
+ */
+struct mtk_jpeg_fmt {
+	u32	fourcc;
+	u32	hw_format;
+	int	h_sample[VIDEO_MAX_PLANES];
+	int	v_sample[VIDEO_MAX_PLANES];
+	int	colplanes;
+	int	h_align;
+	int	v_align;
+	u32	flags;
+};
+
+/**
+ * struct mtk_jpeg_q_data - parameters of one queue
+ * @fmt:	  driver-specific format of this queue
+ * @pix_mp:	  multiplanar format
+ * @enc_crop_rect:	jpeg encoder crop information
+ */
+struct mtk_jpeg_q_data {
+	struct mtk_jpeg_fmt	*fmt;
+	struct v4l2_pix_format_mplane pix_mp;
+	struct v4l2_rect enc_crop_rect;
+};
+
+/**
+ * struct mtk_jpeg_ctx - the device context data
+ * @jpeg:		JPEG IP device for this context
+ * @out_q:		source (output) queue information
+ * @cap_q:		destination (capture) queue queue information
+ * @fh:			V4L2 file handle
+ * @state:		state of the context
+ * @enable_exif:	enable exif mode of jpeg encoder
+ * @enc_quality:	jpeg encoder quality
+ * @restart_interval:	jpeg encoder restart interval
+ * @ctrl_hdl:		controls handler
+ */
+struct mtk_jpeg_ctx {
+	struct mtk_jpeg_dev		*jpeg;
+	struct mtk_jpeg_q_data		out_q;
+	struct mtk_jpeg_q_data		cap_q;
+	struct v4l2_fh			fh;
+	enum mtk_jpeg_ctx_state		state;
+	bool enable_exif;
+	u8 enc_quality;
+	u8 restart_interval;
+	struct v4l2_ctrl_handler ctrl_hdl;
+};
+
+#endif /* _MTK_JPEG_CORE_H */
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
new file mode 100644
index 000000000000..afbbfd5d02bc
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
@@ -0,0 +1,409 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@mediatek.com>
+ */
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <media/videobuf2-core.h>
+
+#include "mtk_jpeg_dec_hw.h"
+
+#define MTK_JPEG_DUNUM_MASK(val)	(((val) - 1) & 0x3)
+
+enum mtk_jpeg_color {
+	MTK_JPEG_COLOR_420		= 0x00221111,
+	MTK_JPEG_COLOR_422		= 0x00211111,
+	MTK_JPEG_COLOR_444		= 0x00111111,
+	MTK_JPEG_COLOR_422V		= 0x00121111,
+	MTK_JPEG_COLOR_422X2		= 0x00412121,
+	MTK_JPEG_COLOR_422VX2		= 0x00222121,
+	MTK_JPEG_COLOR_400		= 0x00110000
+};
+
+static inline int mtk_jpeg_verify_align(u32 val, int align, u32 reg)
+{
+	if (val & (align - 1)) {
+		pr_err("mtk-jpeg: write reg %x without %d align\n", reg, align);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int mtk_jpeg_decide_format(struct mtk_jpeg_dec_param *param)
+{
+	param->src_color = (param->sampling_w[0] << 20) |
+			   (param->sampling_h[0] << 16) |
+			   (param->sampling_w[1] << 12) |
+			   (param->sampling_h[1] << 8) |
+			   (param->sampling_w[2] << 4) |
+			   (param->sampling_h[2]);
+
+	param->uv_brz_w = 0;
+	switch (param->src_color) {
+	case MTK_JPEG_COLOR_444:
+		param->uv_brz_w = 1;
+		param->dst_fourcc = V4L2_PIX_FMT_YUV422M;
+		break;
+	case MTK_JPEG_COLOR_422X2:
+	case MTK_JPEG_COLOR_422:
+		param->dst_fourcc = V4L2_PIX_FMT_YUV422M;
+		break;
+	case MTK_JPEG_COLOR_422V:
+	case MTK_JPEG_COLOR_422VX2:
+		param->uv_brz_w = 1;
+		param->dst_fourcc = V4L2_PIX_FMT_YUV420M;
+		break;
+	case MTK_JPEG_COLOR_420:
+		param->dst_fourcc = V4L2_PIX_FMT_YUV420M;
+		break;
+	case MTK_JPEG_COLOR_400:
+		param->dst_fourcc = V4L2_PIX_FMT_GREY;
+		break;
+	default:
+		param->dst_fourcc = 0;
+		return -1;
+	}
+
+	return 0;
+}
+
+static void mtk_jpeg_calc_mcu(struct mtk_jpeg_dec_param *param)
+{
+	u32 factor_w, factor_h;
+	u32 i, comp, blk;
+
+	factor_w = 2 + param->sampling_w[0];
+	factor_h = 2 + param->sampling_h[0];
+	param->mcu_w = (param->pic_w + (1 << factor_w) - 1) >> factor_w;
+	param->mcu_h = (param->pic_h + (1 << factor_h) - 1) >> factor_h;
+	param->total_mcu = param->mcu_w * param->mcu_h;
+	param->unit_num = ((param->pic_w + 7) >> 3) * ((param->pic_h + 7) >> 3);
+	param->blk_num = 0;
+	for (i = 0; i < MTK_JPEG_COMP_MAX; i++) {
+		param->blk_comp[i] = 0;
+		if (i >= param->comp_num)
+			continue;
+		param->blk_comp[i] = param->sampling_w[i] *
+				     param->sampling_h[i];
+		param->blk_num += param->blk_comp[i];
+	}
+
+	param->membership = 0;
+	for (i = 0, blk = 0, comp = 0; i < MTK_JPEG_BLOCK_MAX; i++) {
+		if (i < param->blk_num && comp < param->comp_num) {
+			u32 tmp;
+
+			tmp = (0x04 + (comp & 0x3));
+			param->membership |= tmp << (i * 3);
+			if (++blk == param->blk_comp[comp]) {
+				comp++;
+				blk = 0;
+			}
+		} else {
+			param->membership |=  7 << (i * 3);
+		}
+	}
+}
+
+static void mtk_jpeg_calc_dma_group(struct mtk_jpeg_dec_param *param)
+{
+	u32 factor_mcu = 3;
+
+	if (param->src_color == MTK_JPEG_COLOR_444 &&
+	    param->dst_fourcc == V4L2_PIX_FMT_YUV422M)
+		factor_mcu = 4;
+	else if (param->src_color == MTK_JPEG_COLOR_422V &&
+		 param->dst_fourcc == V4L2_PIX_FMT_YUV420M)
+		factor_mcu = 4;
+	else if (param->src_color == MTK_JPEG_COLOR_422X2 &&
+		 param->dst_fourcc == V4L2_PIX_FMT_YUV422M)
+		factor_mcu = 2;
+	else if (param->src_color == MTK_JPEG_COLOR_400 ||
+		 (param->src_color & 0x0FFFF) == 0)
+		factor_mcu = 4;
+
+	param->dma_mcu = 1 << factor_mcu;
+	param->dma_group = param->mcu_w / param->dma_mcu;
+	param->dma_last_mcu = param->mcu_w % param->dma_mcu;
+	if (param->dma_last_mcu)
+		param->dma_group++;
+	else
+		param->dma_last_mcu = param->dma_mcu;
+}
+
+static int mtk_jpeg_calc_dst_size(struct mtk_jpeg_dec_param *param)
+{
+	u32 i, padding_w;
+	u32 ds_row_h[3];
+	u32 brz_w[3];
+
+	brz_w[0] = 0;
+	brz_w[1] = param->uv_brz_w;
+	brz_w[2] = brz_w[1];
+
+	for (i = 0; i < param->comp_num; i++) {
+		if (brz_w[i] > 3)
+			return -1;
+
+		padding_w = param->mcu_w * MTK_JPEG_DCTSIZE *
+				param->sampling_w[i];
+		/* output format is 420/422 */
+		param->comp_w[i] = padding_w >> brz_w[i];
+		param->comp_w[i] = round_up(param->comp_w[i],
+					    MTK_JPEG_DCTSIZE);
+		param->img_stride[i] = i ? round_up(param->comp_w[i], 16)
+					: round_up(param->comp_w[i], 32);
+		ds_row_h[i] = (MTK_JPEG_DCTSIZE * param->sampling_h[i]);
+	}
+	param->dec_w = param->img_stride[0];
+	param->dec_h = ds_row_h[0] * param->mcu_h;
+
+	for (i = 0; i < MTK_JPEG_COMP_MAX; i++) {
+		/* They must be equal in frame mode. */
+		param->mem_stride[i] = param->img_stride[i];
+		param->comp_size[i] = param->mem_stride[i] * ds_row_h[i] *
+				      param->mcu_h;
+	}
+
+	param->y_size = param->comp_size[0];
+	param->uv_size = param->comp_size[1];
+	param->dec_size = param->y_size + (param->uv_size << 1);
+
+	return 0;
+}
+
+int mtk_jpeg_dec_fill_param(struct mtk_jpeg_dec_param *param)
+{
+	if (mtk_jpeg_decide_format(param))
+		return -1;
+
+	mtk_jpeg_calc_mcu(param);
+	mtk_jpeg_calc_dma_group(param);
+	if (mtk_jpeg_calc_dst_size(param))
+		return -2;
+
+	return 0;
+}
+
+u32 mtk_jpeg_dec_get_int_status(void __iomem *base)
+{
+	u32 ret;
+
+	ret = readl(base + JPGDEC_REG_INTERRUPT_STATUS) & BIT_INQST_MASK_ALLIRQ;
+	if (ret)
+		writel(ret, base + JPGDEC_REG_INTERRUPT_STATUS);
+
+	return ret;
+}
+
+u32 mtk_jpeg_dec_enum_result(u32 irq_result)
+{
+	if (irq_result & BIT_INQST_MASK_EOF)
+		return MTK_JPEG_DEC_RESULT_EOF_DONE;
+	if (irq_result & BIT_INQST_MASK_PAUSE)
+		return MTK_JPEG_DEC_RESULT_PAUSE;
+	if (irq_result & BIT_INQST_MASK_UNDERFLOW)
+		return MTK_JPEG_DEC_RESULT_UNDERFLOW;
+	if (irq_result & BIT_INQST_MASK_OVERFLOW)
+		return MTK_JPEG_DEC_RESULT_OVERFLOW;
+	if (irq_result & BIT_INQST_MASK_ERROR_BS)
+		return MTK_JPEG_DEC_RESULT_ERROR_BS;
+
+	return MTK_JPEG_DEC_RESULT_ERROR_UNKNOWN;
+}
+
+void mtk_jpeg_dec_start(void __iomem *base)
+{
+	writel(0, base + JPGDEC_REG_TRIG);
+}
+
+static void mtk_jpeg_dec_soft_reset(void __iomem *base)
+{
+	writel(0x0000FFFF, base + JPGDEC_REG_INTERRUPT_STATUS);
+	writel(0x00, base + JPGDEC_REG_RESET);
+	writel(0x01, base + JPGDEC_REG_RESET);
+}
+
+static void mtk_jpeg_dec_hard_reset(void __iomem *base)
+{
+	writel(0x00, base + JPGDEC_REG_RESET);
+	writel(0x10, base + JPGDEC_REG_RESET);
+}
+
+void mtk_jpeg_dec_reset(void __iomem *base)
+{
+	mtk_jpeg_dec_soft_reset(base);
+	mtk_jpeg_dec_hard_reset(base);
+}
+
+static void mtk_jpeg_dec_set_brz_factor(void __iomem *base, u8 yscale_w,
+					u8 yscale_h, u8 uvscale_w, u8 uvscale_h)
+{
+	u32 val;
+
+	val = (uvscale_h << 12) | (uvscale_w << 8) |
+	      (yscale_h << 4) | yscale_w;
+	writel(val, base + JPGDEC_REG_BRZ_FACTOR);
+}
+
+static void mtk_jpeg_dec_set_dst_bank0(void __iomem *base, u32 addr_y,
+				       u32 addr_u, u32 addr_v)
+{
+	mtk_jpeg_verify_align(addr_y, 16, JPGDEC_REG_DEST_ADDR0_Y);
+	writel(addr_y, base + JPGDEC_REG_DEST_ADDR0_Y);
+	mtk_jpeg_verify_align(addr_u, 16, JPGDEC_REG_DEST_ADDR0_U);
+	writel(addr_u, base + JPGDEC_REG_DEST_ADDR0_U);
+	mtk_jpeg_verify_align(addr_v, 16, JPGDEC_REG_DEST_ADDR0_V);
+	writel(addr_v, base + JPGDEC_REG_DEST_ADDR0_V);
+}
+
+static void mtk_jpeg_dec_set_dst_bank1(void __iomem *base, u32 addr_y,
+				       u32 addr_u, u32 addr_v)
+{
+	writel(addr_y, base + JPGDEC_REG_DEST_ADDR1_Y);
+	writel(addr_u, base + JPGDEC_REG_DEST_ADDR1_U);
+	writel(addr_v, base + JPGDEC_REG_DEST_ADDR1_V);
+}
+
+static void mtk_jpeg_dec_set_mem_stride(void __iomem *base, u32 stride_y,
+					u32 stride_uv)
+{
+	writel((stride_y & 0xFFFF), base + JPGDEC_REG_STRIDE_Y);
+	writel((stride_uv & 0xFFFF), base + JPGDEC_REG_STRIDE_UV);
+}
+
+static void mtk_jpeg_dec_set_img_stride(void __iomem *base, u32 stride_y,
+					u32 stride_uv)
+{
+	writel((stride_y & 0xFFFF), base + JPGDEC_REG_IMG_STRIDE_Y);
+	writel((stride_uv & 0xFFFF), base + JPGDEC_REG_IMG_STRIDE_UV);
+}
+
+static void mtk_jpeg_dec_set_pause_mcu_idx(void __iomem *base, u32 idx)
+{
+	writel(idx & 0x0003FFFFFF, base + JPGDEC_REG_PAUSE_MCU_NUM);
+}
+
+static void mtk_jpeg_dec_set_dec_mode(void __iomem *base, u32 mode)
+{
+	writel(mode & 0x03, base + JPGDEC_REG_OPERATION_MODE);
+}
+
+static void mtk_jpeg_dec_set_bs_write_ptr(void __iomem *base, u32 ptr)
+{
+	mtk_jpeg_verify_align(ptr, 16, JPGDEC_REG_FILE_BRP);
+	writel(ptr, base + JPGDEC_REG_FILE_BRP);
+}
+
+static void mtk_jpeg_dec_set_bs_info(void __iomem *base, u32 addr, u32 size)
+{
+	mtk_jpeg_verify_align(addr, 16, JPGDEC_REG_FILE_ADDR);
+	mtk_jpeg_verify_align(size, 128, JPGDEC_REG_FILE_TOTAL_SIZE);
+	writel(addr, base + JPGDEC_REG_FILE_ADDR);
+	writel(size, base + JPGDEC_REG_FILE_TOTAL_SIZE);
+}
+
+static void mtk_jpeg_dec_set_comp_id(void __iomem *base, u32 id_y, u32 id_u,
+				     u32 id_v)
+{
+	u32 val;
+
+	val = ((id_y & 0x00FF) << 24) | ((id_u & 0x00FF) << 16) |
+	      ((id_v & 0x00FF) << 8);
+	writel(val, base + JPGDEC_REG_COMP_ID);
+}
+
+static void mtk_jpeg_dec_set_total_mcu(void __iomem *base, u32 num)
+{
+	writel(num - 1, base + JPGDEC_REG_TOTAL_MCU_NUM);
+}
+
+static void mtk_jpeg_dec_set_comp0_du(void __iomem *base, u32 num)
+{
+	writel(num - 1, base + JPGDEC_REG_COMP0_DATA_UNIT_NUM);
+}
+
+static void mtk_jpeg_dec_set_du_membership(void __iomem *base, u32 member,
+					   u32 gmc, u32 isgray)
+{
+	if (isgray)
+		member = 0x3FFFFFFC;
+	member |= (isgray << 31) | (gmc << 30);
+	writel(member, base + JPGDEC_REG_DU_CTRL);
+}
+
+static void mtk_jpeg_dec_set_q_table(void __iomem *base, u32 id0, u32 id1,
+				     u32 id2)
+{
+	u32 val;
+
+	val = ((id0 & 0x0f) << 8) | ((id1 & 0x0f) << 4) | ((id2 & 0x0f) << 0);
+	writel(val, base + JPGDEC_REG_QT_ID);
+}
+
+static void mtk_jpeg_dec_set_dma_group(void __iomem *base, u32 mcu_group,
+				       u32 group_num, u32 last_mcu)
+{
+	u32 val;
+
+	val = (((mcu_group - 1) & 0x00FF) << 16) |
+	      (((group_num - 1) & 0x007F) << 8) |
+	      ((last_mcu - 1) & 0x00FF);
+	writel(val, base + JPGDEC_REG_WDMA_CTRL);
+}
+
+static void mtk_jpeg_dec_set_sampling_factor(void __iomem *base, u32 comp_num,
+					     u32 y_w, u32 y_h, u32 u_w,
+					     u32 u_h, u32 v_w, u32 v_h)
+{
+	u32 val;
+	u32 y_wh = (MTK_JPEG_DUNUM_MASK(y_w) << 2) | MTK_JPEG_DUNUM_MASK(y_h);
+	u32 u_wh = (MTK_JPEG_DUNUM_MASK(u_w) << 2) | MTK_JPEG_DUNUM_MASK(u_h);
+	u32 v_wh = (MTK_JPEG_DUNUM_MASK(v_w) << 2) | MTK_JPEG_DUNUM_MASK(v_h);
+
+	if (comp_num == 1)
+		val = 0;
+	else
+		val = (y_wh << 8) | (u_wh << 4) | v_wh;
+	writel(val, base + JPGDEC_REG_DU_NUM);
+}
+
+void mtk_jpeg_dec_set_config(void __iomem *base,
+			     struct mtk_jpeg_dec_param *config,
+			     struct mtk_jpeg_bs *bs,
+			     struct mtk_jpeg_fb *fb)
+{
+	mtk_jpeg_dec_set_brz_factor(base, 0, 0, config->uv_brz_w, 0);
+	mtk_jpeg_dec_set_dec_mode(base, 0);
+	mtk_jpeg_dec_set_comp0_du(base, config->unit_num);
+	mtk_jpeg_dec_set_total_mcu(base, config->total_mcu);
+	mtk_jpeg_dec_set_bs_info(base, bs->str_addr, bs->size);
+	mtk_jpeg_dec_set_bs_write_ptr(base, bs->end_addr);
+	mtk_jpeg_dec_set_du_membership(base, config->membership, 1,
+				       (config->comp_num == 1) ? 1 : 0);
+	mtk_jpeg_dec_set_comp_id(base, config->comp_id[0], config->comp_id[1],
+				 config->comp_id[2]);
+	mtk_jpeg_dec_set_q_table(base, config->qtbl_num[0],
+				 config->qtbl_num[1], config->qtbl_num[2]);
+	mtk_jpeg_dec_set_sampling_factor(base, config->comp_num,
+					 config->sampling_w[0],
+					 config->sampling_h[0],
+					 config->sampling_w[1],
+					 config->sampling_h[1],
+					 config->sampling_w[2],
+					 config->sampling_h[2]);
+	mtk_jpeg_dec_set_mem_stride(base, config->mem_stride[0],
+				    config->mem_stride[1]);
+	mtk_jpeg_dec_set_img_stride(base, config->img_stride[0],
+				    config->img_stride[1]);
+	mtk_jpeg_dec_set_dst_bank0(base, fb->plane_addr[0],
+				   fb->plane_addr[1], fb->plane_addr[2]);
+	mtk_jpeg_dec_set_dst_bank1(base, 0, 0, 0);
+	mtk_jpeg_dec_set_dma_group(base, config->dma_mcu, config->dma_group,
+				   config->dma_last_mcu);
+	mtk_jpeg_dec_set_pause_mcu_idx(base, config->total_mcu);
+}
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.h
new file mode 100644
index 000000000000..fa0d45fd7c34
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@mediatek.com>
+ *         Xia Jiang <xia.jiang@mediatek.com>
+ */
+
+#ifndef _MTK_JPEG_DEC_HW_H
+#define _MTK_JPEG_DEC_HW_H
+
+#include <media/videobuf2-core.h>
+
+#include "mtk_jpeg_core.h"
+#include "mtk_jpeg_dec_reg.h"
+
+enum {
+	MTK_JPEG_DEC_RESULT_EOF_DONE		= 0,
+	MTK_JPEG_DEC_RESULT_PAUSE		= 1,
+	MTK_JPEG_DEC_RESULT_UNDERFLOW		= 2,
+	MTK_JPEG_DEC_RESULT_OVERFLOW		= 3,
+	MTK_JPEG_DEC_RESULT_ERROR_BS		= 4,
+	MTK_JPEG_DEC_RESULT_ERROR_UNKNOWN	= 6
+};
+
+struct mtk_jpeg_dec_param {
+	u32 pic_w;
+	u32 pic_h;
+	u32 dec_w;
+	u32 dec_h;
+	u32 src_color;
+	u32 dst_fourcc;
+	u32 mcu_w;
+	u32 mcu_h;
+	u32 total_mcu;
+	u32 unit_num;
+	u32 comp_num;
+	u32 comp_id[MTK_JPEG_COMP_MAX];
+	u32 sampling_w[MTK_JPEG_COMP_MAX];
+	u32 sampling_h[MTK_JPEG_COMP_MAX];
+	u32 qtbl_num[MTK_JPEG_COMP_MAX];
+	u32 blk_num;
+	u32 blk_comp[MTK_JPEG_COMP_MAX];
+	u32 membership;
+	u32 dma_mcu;
+	u32 dma_group;
+	u32 dma_last_mcu;
+	u32 img_stride[MTK_JPEG_COMP_MAX];
+	u32 mem_stride[MTK_JPEG_COMP_MAX];
+	u32 comp_w[MTK_JPEG_COMP_MAX];
+	u32 comp_size[MTK_JPEG_COMP_MAX];
+	u32 y_size;
+	u32 uv_size;
+	u32 dec_size;
+	u8 uv_brz_w;
+};
+
+struct mtk_jpeg_bs {
+	dma_addr_t	str_addr;
+	dma_addr_t	end_addr;
+	size_t		size;
+};
+
+struct mtk_jpeg_fb {
+	dma_addr_t	plane_addr[MTK_JPEG_COMP_MAX];
+	size_t		size;
+};
+
+int mtk_jpeg_dec_fill_param(struct mtk_jpeg_dec_param *param);
+u32 mtk_jpeg_dec_get_int_status(void __iomem *dec_reg_base);
+u32 mtk_jpeg_dec_enum_result(u32 irq_result);
+void mtk_jpeg_dec_set_config(void __iomem *base,
+			     struct mtk_jpeg_dec_param *config,
+			     struct mtk_jpeg_bs *bs,
+			     struct mtk_jpeg_fb *fb);
+void mtk_jpeg_dec_reset(void __iomem *dec_reg_base);
+void mtk_jpeg_dec_start(void __iomem *dec_reg_base);
+
+#endif /* _MTK_JPEG_HW_H */
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_parse.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_parse.c
new file mode 100644
index 000000000000..b95c45791c29
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_parse.c
@@ -0,0 +1,152 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@mediatek.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/videodev2.h>
+
+#include "mtk_jpeg_dec_parse.h"
+
+#define TEM	0x01
+#define SOF0	0xc0
+#define RST	0xd0
+#define SOI	0xd8
+#define EOI	0xd9
+
+struct mtk_jpeg_stream {
+	u8 *addr;
+	u32 size;
+	u32 curr;
+};
+
+static int read_byte(struct mtk_jpeg_stream *stream)
+{
+	if (stream->curr >= stream->size)
+		return -1;
+	return stream->addr[stream->curr++];
+}
+
+static int read_word_be(struct mtk_jpeg_stream *stream, u32 *word)
+{
+	u32 temp;
+	int byte;
+
+	byte = read_byte(stream);
+	if (byte == -1)
+		return -1;
+	temp = byte << 8;
+	byte = read_byte(stream);
+	if (byte == -1)
+		return -1;
+	*word = (u32)byte | temp;
+
+	return 0;
+}
+
+static void read_skip(struct mtk_jpeg_stream *stream, long len)
+{
+	if (len <= 0)
+		return;
+	while (len--)
+		read_byte(stream);
+}
+
+static bool mtk_jpeg_do_parse(struct mtk_jpeg_dec_param *param, u8 *src_addr_va,
+			      u32 src_size)
+{
+	bool notfound = true;
+	struct mtk_jpeg_stream stream;
+
+	stream.addr = src_addr_va;
+	stream.size = src_size;
+	stream.curr = 0;
+
+	while (notfound) {
+		int i, length, byte;
+		u32 word;
+
+		byte = read_byte(&stream);
+		if (byte == -1)
+			return false;
+		if (byte != 0xff)
+			continue;
+		do
+			byte = read_byte(&stream);
+		while (byte == 0xff);
+		if (byte == -1)
+			return false;
+		if (byte == 0)
+			continue;
+
+		length = 0;
+		switch (byte) {
+		case SOF0:
+			/* length */
+			if (read_word_be(&stream, &word))
+				break;
+
+			/* precision */
+			if (read_byte(&stream) == -1)
+				break;
+
+			if (read_word_be(&stream, &word))
+				break;
+			param->pic_h = word;
+
+			if (read_word_be(&stream, &word))
+				break;
+			param->pic_w = word;
+
+			param->comp_num = read_byte(&stream);
+			if (param->comp_num != 1 && param->comp_num != 3)
+				break;
+
+			for (i = 0; i < param->comp_num; i++) {
+				param->comp_id[i] = read_byte(&stream);
+				if (param->comp_id[i] == -1)
+					break;
+
+				/* sampling */
+				byte = read_byte(&stream);
+				if (byte == -1)
+					break;
+				param->sampling_w[i] = (byte >> 4) & 0x0F;
+				param->sampling_h[i] = byte & 0x0F;
+
+				param->qtbl_num[i] = read_byte(&stream);
+				if (param->qtbl_num[i] == -1)
+					break;
+			}
+
+			notfound = !(i == param->comp_num);
+			break;
+		case RST ... RST + 7:
+		case SOI:
+		case EOI:
+		case TEM:
+			break;
+		default:
+			if (read_word_be(&stream, &word))
+				break;
+			length = (long)word - 2;
+			read_skip(&stream, length);
+			break;
+		}
+	}
+
+	return !notfound;
+}
+
+bool mtk_jpeg_parse(struct mtk_jpeg_dec_param *param, u8 *src_addr_va,
+		    u32 src_size)
+{
+	if (!mtk_jpeg_do_parse(param, src_addr_va, src_size))
+		return false;
+	if (mtk_jpeg_dec_fill_param(param))
+		return false;
+
+	return true;
+}
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_parse.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_parse.h
new file mode 100644
index 000000000000..2918f15811f8
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_parse.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@mediatek.com>
+ */
+
+#ifndef _MTK_JPEG_PARSE_H
+#define _MTK_JPEG_PARSE_H
+
+#include "mtk_jpeg_dec_hw.h"
+
+bool mtk_jpeg_parse(struct mtk_jpeg_dec_param *param, u8 *src_addr_va,
+		    u32 src_size);
+
+#endif /* _MTK_JPEG_PARSE_H */
+
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_reg.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_reg.h
new file mode 100644
index 000000000000..21ec8f96797f
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_reg.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@mediatek.com>
+ */
+
+#ifndef _MTK_JPEG_REG_H
+#define _MTK_JPEG_REG_H
+
+#define MTK_JPEG_BLOCK_MAX		10
+#define MTK_JPEG_DCTSIZE		8
+
+#define BIT_INQST_MASK_ERROR_BS		0x20
+#define BIT_INQST_MASK_PAUSE		0x10
+#define BIT_INQST_MASK_OVERFLOW		0x04
+#define BIT_INQST_MASK_UNDERFLOW	0x02
+#define BIT_INQST_MASK_EOF		0x01
+#define BIT_INQST_MASK_ALLIRQ		0x37
+
+#define JPGDEC_REG_RESET		0x0090
+#define JPGDEC_REG_BRZ_FACTOR		0x00f8
+#define JPGDEC_REG_DU_NUM		0x00fc
+#define JPGDEC_REG_DEST_ADDR0_Y		0x0140
+#define JPGDEC_REG_DEST_ADDR0_U		0x0144
+#define JPGDEC_REG_DEST_ADDR0_V		0x0148
+#define JPGDEC_REG_DEST_ADDR1_Y		0x014c
+#define JPGDEC_REG_DEST_ADDR1_U		0x0150
+#define JPGDEC_REG_DEST_ADDR1_V		0x0154
+#define JPGDEC_REG_STRIDE_Y		0x0158
+#define JPGDEC_REG_STRIDE_UV		0x015c
+#define JPGDEC_REG_IMG_STRIDE_Y		0x0160
+#define JPGDEC_REG_IMG_STRIDE_UV	0x0164
+#define JPGDEC_REG_WDMA_CTRL		0x016c
+#define JPGDEC_REG_PAUSE_MCU_NUM	0x0170
+#define JPGDEC_REG_OPERATION_MODE	0x017c
+#define JPGDEC_REG_FILE_ADDR		0x0200
+#define JPGDEC_REG_COMP_ID		0x020c
+#define JPGDEC_REG_TOTAL_MCU_NUM	0x0210
+#define JPGDEC_REG_COMP0_DATA_UNIT_NUM	0x0224
+#define JPGDEC_REG_DU_CTRL		0x023c
+#define JPGDEC_REG_TRIG			0x0240
+#define JPGDEC_REG_FILE_BRP		0x0248
+#define JPGDEC_REG_FILE_TOTAL_SIZE	0x024c
+#define JPGDEC_REG_QT_ID		0x0270
+#define JPGDEC_REG_INTERRUPT_STATUS	0x0274
+#define JPGDEC_REG_STATUS		0x0278
+
+#endif /* _MTK_JPEG_REG_H */
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
new file mode 100644
index 000000000000..1cf037bf72dd
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ * Author: Xia Jiang <xia.jiang@mediatek.com>
+ *
+ */
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "mtk_jpeg_enc_hw.h"
+
+static const struct mtk_jpeg_enc_qlt mtk_jpeg_enc_quality[] = {
+	{.quality_param = 34, .hardware_value = JPEG_ENC_QUALITY_Q34},
+	{.quality_param = 39, .hardware_value = JPEG_ENC_QUALITY_Q39},
+	{.quality_param = 48, .hardware_value = JPEG_ENC_QUALITY_Q48},
+	{.quality_param = 60, .hardware_value = JPEG_ENC_QUALITY_Q60},
+	{.quality_param = 64, .hardware_value = JPEG_ENC_QUALITY_Q64},
+	{.quality_param = 68, .hardware_value = JPEG_ENC_QUALITY_Q68},
+	{.quality_param = 74, .hardware_value = JPEG_ENC_QUALITY_Q74},
+	{.quality_param = 80, .hardware_value = JPEG_ENC_QUALITY_Q80},
+	{.quality_param = 82, .hardware_value = JPEG_ENC_QUALITY_Q82},
+	{.quality_param = 84, .hardware_value = JPEG_ENC_QUALITY_Q84},
+	{.quality_param = 87, .hardware_value = JPEG_ENC_QUALITY_Q87},
+	{.quality_param = 90, .hardware_value = JPEG_ENC_QUALITY_Q90},
+	{.quality_param = 92, .hardware_value = JPEG_ENC_QUALITY_Q92},
+	{.quality_param = 95, .hardware_value = JPEG_ENC_QUALITY_Q95},
+	{.quality_param = 97, .hardware_value = JPEG_ENC_QUALITY_Q97},
+};
+
+void mtk_jpeg_enc_reset(void __iomem *base)
+{
+	writel(0, base + JPEG_ENC_RSTB);
+	writel(JPEG_ENC_RESET_BIT, base + JPEG_ENC_RSTB);
+	writel(0, base + JPEG_ENC_CODEC_SEL);
+}
+
+u32 mtk_jpeg_enc_get_file_size(void __iomem *base)
+{
+	return readl(base + JPEG_ENC_DMA_ADDR0) -
+	       readl(base + JPEG_ENC_DST_ADDR0);
+}
+
+void mtk_jpeg_enc_start(void __iomem *base)
+{
+	u32 value;
+
+	value = readl(base + JPEG_ENC_CTRL);
+	value |= JPEG_ENC_CTRL_INT_EN_BIT | JPEG_ENC_CTRL_ENABLE_BIT;
+	writel(value, base + JPEG_ENC_CTRL);
+}
+
+void mtk_jpeg_set_enc_src(struct mtk_jpeg_ctx *ctx,  void __iomem *base,
+			  struct vb2_buffer *src_buf)
+{
+	int i;
+	dma_addr_t dma_addr;
+
+	for (i = 0; i < src_buf->num_planes; i++) {
+		dma_addr = vb2_dma_contig_plane_dma_addr(src_buf, i) +
+			   src_buf->planes[i].data_offset;
+		if (!i)
+			writel(dma_addr, base + JPEG_ENC_SRC_LUMA_ADDR);
+		else
+			writel(dma_addr, base + JPEG_ENC_SRC_CHROMA_ADDR);
+	}
+}
+
+void mtk_jpeg_set_enc_dst(struct mtk_jpeg_ctx *ctx, void __iomem *base,
+			  struct vb2_buffer *dst_buf)
+{
+	dma_addr_t dma_addr;
+	size_t size;
+	u32 dma_addr_offset;
+	u32 dma_addr_offsetmask;
+
+	dma_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
+	dma_addr_offset = ctx->enable_exif ? MTK_JPEG_MAX_EXIF_SIZE : 0;
+	dma_addr_offsetmask = dma_addr & JPEG_ENC_DST_ADDR_OFFSET_MASK;
+	size = vb2_plane_size(dst_buf, 0);
+
+	writel(dma_addr_offset & ~0xf, base + JPEG_ENC_OFFSET_ADDR);
+	writel(dma_addr_offsetmask & 0xf, base + JPEG_ENC_BYTE_OFFSET_MASK);
+	writel(dma_addr & ~0xf, base + JPEG_ENC_DST_ADDR0);
+	writel((dma_addr + size) & ~0xf, base + JPEG_ENC_STALL_ADDR0);
+}
+
+void mtk_jpeg_set_enc_params(struct mtk_jpeg_ctx *ctx,  void __iomem *base)
+{
+	u32 value;
+	u32 width = ctx->out_q.enc_crop_rect.width;
+	u32 height = ctx->out_q.enc_crop_rect.height;
+	u32 enc_format = ctx->out_q.fmt->fourcc;
+	u32 bytesperline = ctx->out_q.pix_mp.plane_fmt[0].bytesperline;
+	u32 blk_num;
+	u32 img_stride;
+	u32 mem_stride;
+	u32 i, enc_quality;
+
+	value = width << 16 | height;
+	writel(value, base + JPEG_ENC_IMG_SIZE);
+
+	if (enc_format == V4L2_PIX_FMT_NV12M ||
+	    enc_format == V4L2_PIX_FMT_NV21M)
+	    /*
+	     * Total 8 x 8 block number of luma and chroma.
+	     * The number of blocks is counted from 0.
+	     */
+		blk_num = DIV_ROUND_UP(width, 16) *
+			  DIV_ROUND_UP(height, 16) * 6 - 1;
+	else
+		blk_num = DIV_ROUND_UP(width, 16) *
+			  DIV_ROUND_UP(height, 8) * 4 - 1;
+	writel(blk_num, base + JPEG_ENC_BLK_NUM);
+
+	if (enc_format == V4L2_PIX_FMT_NV12M ||
+	    enc_format == V4L2_PIX_FMT_NV21M) {
+		/* 4:2:0 */
+		img_stride = round_up(width, 16);
+		mem_stride = bytesperline;
+	} else {
+		/* 4:2:2 */
+		img_stride = round_up(width * 2, 32);
+		mem_stride = img_stride;
+	}
+	writel(img_stride, base + JPEG_ENC_IMG_STRIDE);
+	writel(mem_stride, base + JPEG_ENC_STRIDE);
+
+	enc_quality = mtk_jpeg_enc_quality[0].hardware_value;
+	for (i = 0; i < ARRAY_SIZE(mtk_jpeg_enc_quality); i++) {
+		if (ctx->enc_quality <= mtk_jpeg_enc_quality[i].quality_param) {
+			enc_quality = mtk_jpeg_enc_quality[i].hardware_value;
+			break;
+		}
+	}
+	writel(enc_quality, base + JPEG_ENC_QUALITY);
+
+	value = readl(base + JPEG_ENC_CTRL);
+	value &= ~JPEG_ENC_CTRL_YUV_FORMAT_MASK;
+	value |= (ctx->out_q.fmt->hw_format & 3) << 3;
+	if (ctx->enable_exif)
+		value |= JPEG_ENC_CTRL_FILE_FORMAT_BIT;
+	else
+		value &= ~JPEG_ENC_CTRL_FILE_FORMAT_BIT;
+	if (ctx->restart_interval)
+		value |= JPEG_ENC_CTRL_RESTART_EN_BIT;
+	else
+		value &= ~JPEG_ENC_CTRL_RESTART_EN_BIT;
+	writel(value, base + JPEG_ENC_CTRL);
+
+	writel(ctx->restart_interval, base + JPEG_ENC_RST_MCU_NUM);
+}
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.h
new file mode 100644
index 000000000000..61c60e4e58ea
--- /dev/null
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ * Author: Xia Jiang <xia.jiang@mediatek.com>
+ *
+ */
+
+#ifndef _MTK_JPEG_ENC_HW_H
+#define _MTK_JPEG_ENC_HW_H
+
+#include <media/videobuf2-core.h>
+
+#include "mtk_jpeg_core.h"
+
+#define JPEG_ENC_INT_STATUS_DONE	BIT(0)
+#define JPEG_ENC_INT_STATUS_MASK_ALLIRQ	0x13
+
+#define JPEG_ENC_DST_ADDR_OFFSET_MASK	GENMASK(3, 0)
+
+#define JPEG_ENC_CTRL_YUV_FORMAT_MASK	0x18
+#define JPEG_ENC_CTRL_RESTART_EN_BIT	BIT(10)
+#define JPEG_ENC_CTRL_FILE_FORMAT_BIT	BIT(5)
+#define JPEG_ENC_CTRL_INT_EN_BIT	BIT(2)
+#define JPEG_ENC_CTRL_ENABLE_BIT	BIT(0)
+#define JPEG_ENC_RESET_BIT		BIT(0)
+
+#define JPEG_ENC_YUV_FORMAT_YUYV	0
+#define JPEG_ENC_YUV_FORMAT_YVYU	1
+#define JPEG_ENC_YUV_FORMAT_NV12	2
+#define JEPG_ENC_YUV_FORMAT_NV21	3
+
+#define JPEG_ENC_QUALITY_Q60		0x0
+#define JPEG_ENC_QUALITY_Q80		0x1
+#define JPEG_ENC_QUALITY_Q90		0x2
+#define JPEG_ENC_QUALITY_Q95		0x3
+#define JPEG_ENC_QUALITY_Q39		0x4
+#define JPEG_ENC_QUALITY_Q68		0x5
+#define JPEG_ENC_QUALITY_Q84		0x6
+#define JPEG_ENC_QUALITY_Q92		0x7
+#define JPEG_ENC_QUALITY_Q48		0x8
+#define JPEG_ENC_QUALITY_Q74		0xa
+#define JPEG_ENC_QUALITY_Q87		0xb
+#define JPEG_ENC_QUALITY_Q34		0xc
+#define JPEG_ENC_QUALITY_Q64		0xe
+#define JPEG_ENC_QUALITY_Q82		0xf
+#define JPEG_ENC_QUALITY_Q97		0x10
+
+#define JPEG_ENC_RSTB			0x100
+#define JPEG_ENC_CTRL			0x104
+#define JPEG_ENC_QUALITY		0x108
+#define JPEG_ENC_BLK_NUM		0x10C
+#define JPEG_ENC_BLK_CNT		0x110
+#define JPEG_ENC_INT_STS		0x11c
+#define JPEG_ENC_DST_ADDR0		0x120
+#define JPEG_ENC_DMA_ADDR0		0x124
+#define JPEG_ENC_STALL_ADDR0		0x128
+#define JPEG_ENC_OFFSET_ADDR		0x138
+#define JPEG_ENC_RST_MCU_NUM		0x150
+#define JPEG_ENC_IMG_SIZE		0x154
+#define JPEG_ENC_DEBUG_INFO0		0x160
+#define JPEG_ENC_DEBUG_INFO1		0x164
+#define JPEG_ENC_TOTAL_CYCLE		0x168
+#define JPEG_ENC_BYTE_OFFSET_MASK	0x16c
+#define JPEG_ENC_SRC_LUMA_ADDR		0x170
+#define JPEG_ENC_SRC_CHROMA_ADDR	0x174
+#define JPEG_ENC_STRIDE			0x178
+#define JPEG_ENC_IMG_STRIDE		0x17c
+#define JPEG_ENC_DCM_CTRL		0x300
+#define JPEG_ENC_CODEC_SEL		0x314
+#define JPEG_ENC_ULTRA_THRES		0x318
+
+/**
+ * struct mtk_jpeg_enc_qlt - JPEG encoder quality data
+ * @quality_param:	quality value
+ * @hardware_value:	hardware value of quality
+ */
+struct mtk_jpeg_enc_qlt {
+	u8	quality_param;
+	u8	hardware_value;
+};
+
+void mtk_jpeg_enc_reset(void __iomem *base);
+u32 mtk_jpeg_enc_get_file_size(void __iomem *base);
+void mtk_jpeg_enc_start(void __iomem *enc_reg_base);
+void mtk_jpeg_set_enc_src(struct mtk_jpeg_ctx *ctx,  void __iomem *base,
+			  struct vb2_buffer *src_buf);
+void mtk_jpeg_set_enc_dst(struct mtk_jpeg_ctx *ctx, void __iomem *base,
+			  struct vb2_buffer *dst_buf);
+void mtk_jpeg_set_enc_params(struct mtk_jpeg_ctx *ctx,  void __iomem *base);
+
+#endif /* _MTK_JPEG_ENC_HW_H */