[PATCH RESEND v9 18/18] media: platform: Add jpeg enc feature

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Add mtk jpeg encode v4l2 driver based on jpeg decode, because that jpeg
decode and encode have great similarities with function operation.

Signed-off-by: Xia Jiang <xia.jiang@xxxxxxxxxxxx>
---
v9: add member variable(struct v4l2_rect) in out_q structure for storing
    the active crop information.
    move the renaming exsting functions/defines/variables to a separate patch.
---
 drivers/media/platform/mtk-jpeg/Makefile      |   5 +-
 .../media/platform/mtk-jpeg/mtk_jpeg_core.c   | 845 +++++++++++++++---
 .../media/platform/mtk-jpeg/mtk_jpeg_core.h   |  44 +-
 .../media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c | 193 ++++
 .../media/platform/mtk-jpeg/mtk_jpeg_enc_hw.h | 123 +++
 5 files changed, 1084 insertions(+), 126 deletions(-)
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.h

diff --git a/drivers/media/platform/mtk-jpeg/Makefile b/drivers/media/platform/mtk-jpeg/Makefile
index 48516dcf96e6..76c33aad0f3f 100644
--- a/drivers/media/platform/mtk-jpeg/Makefile
+++ b/drivers/media/platform/mtk-jpeg/Makefile
@@ -1,3 +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-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/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index 29b8b82c606c..d7ef69920530 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -3,6 +3,7 @@
  * Copyright (c) 2016 MediaTek Inc.
  * Author: Ming Hsiu Tsai <minghsiu.tsai@xxxxxxxxxxxx>
  *         Rick Chang <rick.chang@xxxxxxxxxxxx>
+ *         Xia Jiang <xia.jiang@xxxxxxxxxxxx>
  */
 
 #include <linux/clk.h>
@@ -23,10 +24,59 @@
 #include <media/videobuf2-dma-contig.h>
 #include <soc/mediatek/smi.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_ENC_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_ENC_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_ENC_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_ENC_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_ENC_OUTPUT,
+	},
+};
+
 static struct mtk_jpeg_fmt mtk_jpeg_dec_formats[] = {
 	{
 		.fourcc		= V4L2_PIX_FMT_JPEG,
@@ -53,6 +103,7 @@ static struct mtk_jpeg_fmt mtk_jpeg_dec_formats[] = {
 	},
 };
 
+#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 {
@@ -64,6 +115,11 @@ struct mtk_jpeg_src_buf {
 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);
@@ -75,6 +131,19 @@ static inline struct mtk_jpeg_src_buf *mtk_jpeg_vb2_to_srcbuf(
 	return container_of(to_vb2_v4l2_buffer(vb), struct mtk_jpeg_src_buf, b);
 }
 
+static int mtk_jpeg_enc_querycap(struct file *file, void *priv,
+				 struct v4l2_capability *cap)
+{
+	struct mtk_jpeg_dev *jpeg = video_drvdata(file);
+
+	strscpy(cap->driver, MTK_JPEG_NAME, sizeof(cap->driver));
+	strscpy(cap->card, MTK_JPEG_NAME " encoder", sizeof(cap->card));
+	snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
+		 dev_name(jpeg->dev));
+
+	return 0;
+}
+
 static int mtk_jpeg_dec_querycap(struct file *file, void *priv,
 				 struct v4l2_capability *cap)
 {
@@ -88,6 +157,54 @@ static int mtk_jpeg_dec_querycap(struct file *file, void *priv,
 	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 ?
+				   true : false;
+		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)
 {
@@ -109,6 +226,14 @@ static int mtk_jpeg_enum_fmt(struct mtk_jpeg_fmt *mtk_jpeg_formats, int n,
 	return 0;
 }
 
+static int mtk_jpeg_enc_enum_fmt_vid_cap(struct file *file, void *priv,
+					 struct v4l2_fmtdesc *f)
+{
+	return mtk_jpeg_enum_fmt(mtk_jpeg_enc_formats,
+				 MTK_JPEG_ENC_NUM_FORMATS, f,
+				 MTK_JPEG_FMT_FLAG_ENC_CAPTURE);
+}
+
 static int mtk_jpeg_dec_enum_fmt_vid_cap(struct file *file, void *priv,
 					 struct v4l2_fmtdesc *f)
 {
@@ -117,6 +242,14 @@ static int mtk_jpeg_dec_enum_fmt_vid_cap(struct file *file, void *priv,
 				 MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
 }
 
+static int mtk_jpeg_enc_enum_fmt_vid_out(struct file *file, void *priv,
+					 struct v4l2_fmtdesc *f)
+{
+	return mtk_jpeg_enum_fmt(mtk_jpeg_enc_formats,
+				 MTK_JPEG_ENC_NUM_FORMATS, f,
+				 MTK_JPEG_FMT_FLAG_ENC_OUTPUT);
+}
+
 static int mtk_jpeg_dec_enum_fmt_vid_out(struct file *file, void *priv,
 					 struct v4l2_fmtdesc *f)
 {
@@ -132,93 +265,66 @@ mtk_jpeg_get_q_data(struct mtk_jpeg_ctx *ctx, enum v4l2_buf_type type)
 	return &ctx->cap_q;
 }
 
-static struct mtk_jpeg_fmt *mtk_jpeg_find_format(struct mtk_jpeg_ctx *ctx,
-						 u32 pixelformat,
+static struct mtk_jpeg_fmt *mtk_jpeg_find_format(u32 pixelformat,
 						 unsigned int fmt_type)
 {
-	unsigned int k, fmt_flag;
+	unsigned int k;
+	struct mtk_jpeg_fmt *fmt;
 
-	fmt_flag = (fmt_type == MTK_JPEG_FMT_TYPE_OUTPUT) ?
-		   MTK_JPEG_FMT_FLAG_DEC_OUTPUT :
-		   MTK_JPEG_FMT_FLAG_DEC_CAPTURE;
+	for (k = 0; k < MTK_JPEG_ENC_NUM_FORMATS; k++) {
+		fmt = &mtk_jpeg_enc_formats[k];
+
+		if (fmt->fourcc == pixelformat && fmt->flags & fmt_type)
+			return fmt;
+	}
 
 	for (k = 0; k < MTK_JPEG_DEC_NUM_FORMATS; k++) {
-		struct mtk_jpeg_fmt *fmt = &mtk_jpeg_dec_formats[k];
+		fmt = &mtk_jpeg_dec_formats[k];
 
-		if (fmt->fourcc == pixelformat && fmt->flags & fmt_flag)
+		if (fmt->fourcc == pixelformat && fmt->flags & fmt_type)
 			return fmt;
 	}
 
 	return NULL;
 }
 
-static void mtk_jpeg_adjust_fmt_mplane(struct mtk_jpeg_ctx *ctx,
-				       struct v4l2_format *f)
-{
-	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
-	struct mtk_jpeg_q_data *q_data;
-	int i;
-
-	q_data = mtk_jpeg_get_q_data(ctx, f->type);
-
-	pix_mp->width = q_data->w;
-	pix_mp->height = q_data->h;
-	pix_mp->pixelformat = q_data->fmt->fourcc;
-	pix_mp->num_planes = q_data->fmt->colplanes;
-
-	for (i = 0; i < pix_mp->num_planes; i++) {
-		pix_mp->plane_fmt[i].bytesperline = q_data->bytesperline[i];
-		pix_mp->plane_fmt[i].sizeimage = q_data->sizeimage[i];
-	}
-}
-
-static int mtk_jpeg_try_fmt_mplane(struct v4l2_format *f,
-				   struct mtk_jpeg_fmt *fmt,
-				   struct mtk_jpeg_ctx *ctx, int q_type)
+static int vidioc_try_fmt(struct v4l2_format *f, struct mtk_jpeg_fmt *fmt)
 {
 	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
 	int i;
 
 	pix_mp->field = V4L2_FIELD_NONE;
-
-	if (ctx->state != MTK_JPEG_INIT) {
-		mtk_jpeg_adjust_fmt_mplane(ctx, f);
-		return 0;
-	}
-
 	pix_mp->num_planes = fmt->colplanes;
 	pix_mp->pixelformat = fmt->fourcc;
 
-	if (q_type == MTK_JPEG_FMT_TYPE_OUTPUT) {
-		struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[0];
-
+	if (fmt->fourcc == V4L2_PIX_FMT_JPEG) {
 		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;
+		pix_mp->plane_fmt[0].bytesperline = 0;
+		pix_mp->plane_fmt[0].sizeimage =
+				round_up(pix_mp->plane_fmt[0].sizeimage, 128);
+		if (pix_mp->plane_fmt[0].sizeimage == 0)
+			pix_mp->plane_fmt[0].sizeimage =
+				MTK_JPEG_DEFAULT_SIZEIMAGE;
+	} else {
+		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 < pix_mp->num_planes; 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;
+		}
 	}
 
-	/* type is MTK_JPEG_FMT_TYPE_CAPTURE */
-	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;
 }
 
@@ -271,14 +377,35 @@ static int mtk_jpeg_g_fmt_vid_mplane(struct file *file, void *priv,
 	return 0;
 }
 
+static int mtk_jpeg_enc_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_fmt *fmt;
+
+	fmt = mtk_jpeg_find_format(f->fmt.pix_mp.pixelformat,
+				   MTK_JPEG_FMT_FLAG_ENC_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));
+
+	return vidioc_try_fmt(f, fmt);
+}
+
 static int mtk_jpeg_dec_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_fmt *fmt;
 
-	fmt = mtk_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat,
-				   MTK_JPEG_FMT_TYPE_CAPTURE);
+	fmt = mtk_jpeg_find_format(f->fmt.pix_mp.pixelformat,
+				   MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
 	if (!fmt)
 		fmt = ctx->cap_q.fmt;
 
@@ -289,7 +416,33 @@ static int mtk_jpeg_dec_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 		 (fmt->fourcc >> 16 & 0xff),
 		 (fmt->fourcc >> 24 & 0xff));
 
-	return mtk_jpeg_try_fmt_mplane(f, fmt, ctx, MTK_JPEG_FMT_TYPE_CAPTURE);
+	if (ctx->state != MTK_JPEG_INIT) {
+		mtk_jpeg_g_fmt_vid_mplane(file, priv, f);
+		return 0;
+	}
+
+	return vidioc_try_fmt(f, fmt);
+}
+
+static int mtk_jpeg_enc_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_fmt *fmt;
+
+	fmt = mtk_jpeg_find_format(f->fmt.pix_mp.pixelformat,
+				   MTK_JPEG_FMT_FLAG_ENC_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));
+
+	return vidioc_try_fmt(f, fmt);
 }
 
 static int mtk_jpeg_dec_try_fmt_vid_out_mplane(struct file *file, void *priv,
@@ -298,8 +451,8 @@ static int mtk_jpeg_dec_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(ctx, f->fmt.pix_mp.pixelformat,
-				   MTK_JPEG_FMT_TYPE_OUTPUT);
+	fmt = mtk_jpeg_find_format(f->fmt.pix_mp.pixelformat,
+				   MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
 	if (!fmt)
 		fmt = ctx->out_q.fmt;
 
@@ -310,17 +463,21 @@ static int mtk_jpeg_dec_try_fmt_vid_out_mplane(struct file *file, void *priv,
 		 (fmt->fourcc >> 16 & 0xff),
 		 (fmt->fourcc >> 24 & 0xff));
 
-	return mtk_jpeg_try_fmt_mplane(f, fmt, ctx, MTK_JPEG_FMT_TYPE_OUTPUT);
+	if (ctx->state != MTK_JPEG_INIT) {
+		mtk_jpeg_g_fmt_vid_mplane(file, priv, f);
+		return 0;
+	}
+
+	return vidioc_try_fmt(f, fmt);
 }
 
 static int mtk_jpeg_s_fmt_mplane(struct mtk_jpeg_ctx *ctx,
-				 struct v4l2_format *f)
+				 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;
-	unsigned int f_type;
 	int i;
 
 	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
@@ -334,12 +491,11 @@ static int mtk_jpeg_s_fmt_mplane(struct mtk_jpeg_ctx *ctx,
 		return -EBUSY;
 	}
 
-	f_type = V4L2_TYPE_IS_OUTPUT(f->type) ?
-			 MTK_JPEG_FMT_TYPE_OUTPUT : MTK_JPEG_FMT_TYPE_CAPTURE;
-
-	q_data->fmt = mtk_jpeg_find_format(ctx, pix_mp->pixelformat, f_type);
+	q_data->fmt = mtk_jpeg_find_format(pix_mp->pixelformat, fmt_type);
 	q_data->w = pix_mp->width;
 	q_data->h = pix_mp->height;
+	q_data->crop_rect.width = pix_mp->width;
+	q_data->crop_rect.height = pix_mp->height;
 	ctx->colorspace = pix_mp->colorspace;
 	ctx->ycbcr_enc = pix_mp->ycbcr_enc;
 	ctx->xfer_func = pix_mp->xfer_func;
@@ -365,6 +521,19 @@ static int mtk_jpeg_s_fmt_mplane(struct mtk_jpeg_ctx *ctx,
 	return 0;
 }
 
+static int mtk_jpeg_enc_s_fmt_vid_out_mplane(struct file *file, void *priv,
+					     struct v4l2_format *f)
+{
+	int ret;
+
+	ret = mtk_jpeg_enc_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_ENC_OUTPUT);
+}
+
 static int mtk_jpeg_dec_s_fmt_vid_out_mplane(struct file *file, void *priv,
 					     struct v4l2_format *f)
 {
@@ -374,7 +543,21 @@ static int mtk_jpeg_dec_s_fmt_vid_out_mplane(struct file *file, void *priv,
 	if (ret)
 		return ret;
 
-	return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f);
+	return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f,
+				     MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
+}
+
+static int mtk_jpeg_enc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
+					     struct v4l2_format *f)
+{
+	int ret;
+
+	ret = mtk_jpeg_enc_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_ENC_CAPTURE);
 }
 
 static int mtk_jpeg_dec_s_fmt_vid_cap_mplane(struct file *file, void *priv,
@@ -386,7 +569,8 @@ static int mtk_jpeg_dec_s_fmt_vid_cap_mplane(struct file *file, void *priv,
 	if (ret)
 		return ret;
 
-	return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f);
+	return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f,
+				     MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
 }
 
 static void mtk_jpeg_queue_src_chg_event(struct mtk_jpeg_ctx *ctx)
@@ -411,6 +595,29 @@ static int mtk_jpeg_subscribe_event(struct v4l2_fh *fh,
 	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:
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+		s->r.width = ctx->out_q.w;
+		s->r.height = ctx->out_q.h;
+		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)
 {
@@ -440,6 +647,29 @@ static int mtk_jpeg_dec_g_selection(struct file *file, void *priv,
 	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.w);
+		s->r.height = min(s->r.height, ctx->out_q.h);
+		ctx->out_q.crop_rect = s->r;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int mtk_jpeg_dec_s_selection(struct file *file, void *priv,
 				    struct v4l2_selection *s)
 {
@@ -484,6 +714,33 @@ static int mtk_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 	return v4l2_m2m_qbuf(file, fh->m2m_ctx, buf);
 }
 
+static const struct v4l2_ioctl_ops mtk_jpeg_enc_ioctl_ops = {
+	.vidioc_querycap                = mtk_jpeg_enc_querycap,
+	.vidioc_enum_fmt_vid_cap	= mtk_jpeg_enc_enum_fmt_vid_cap,
+	.vidioc_enum_fmt_vid_out	= mtk_jpeg_enc_enum_fmt_vid_out,
+	.vidioc_try_fmt_vid_cap_mplane	= mtk_jpeg_enc_try_fmt_vid_cap_mplane,
+	.vidioc_try_fmt_vid_out_mplane	= mtk_jpeg_enc_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_enc_s_fmt_vid_cap_mplane,
+	.vidioc_s_fmt_vid_out_mplane    = mtk_jpeg_enc_s_fmt_vid_out_mplane,
+	.vidioc_qbuf                    = mtk_jpeg_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_dec_querycap,
 	.vidioc_enum_fmt_vid_cap	= mtk_jpeg_dec_enum_fmt_vid_cap,
@@ -575,8 +832,9 @@ 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(ctx, param->dst_fourcc,
-						MTK_JPEG_FMT_TYPE_CAPTURE)) {
+	if (q_data->fmt !=
+	    mtk_jpeg_find_format(param->dst_fourcc,
+				 MTK_JPEG_FMT_FLAG_DEC_CAPTURE)) {
 		v4l2_dbg(1, debug, &jpeg->v4l2_dev, "format change\n");
 		return true;
 	}
@@ -597,9 +855,8 @@ static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx *ctx,
 	q_data = &ctx->cap_q;
 	q_data->w = param->dec_w;
 	q_data->h = param->dec_h;
-	q_data->fmt = mtk_jpeg_find_format(ctx,
-					   param->dst_fourcc,
-					   MTK_JPEG_FMT_TYPE_CAPTURE);
+	q_data->fmt = mtk_jpeg_find_format(param->dst_fourcc,
+					   MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
 
 	for (i = 0; i < q_data->fmt->colplanes; i++) {
 		q_data->bytesperline[i] = param->mem_stride[i];
@@ -616,6 +873,17 @@ static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx *ctx,
 		 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);
@@ -664,6 +932,15 @@ 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_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);
@@ -699,6 +976,15 @@ static const struct vb2_ops mtk_jpeg_dec_qops = {
 	.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)
@@ -736,6 +1022,85 @@ static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx,
 	return 0;
 }
 
+static void mtk_jpeg_set_enc_dst(struct mtk_jpeg_ctx *ctx, void __iomem *base,
+				 struct vb2_buffer *dst_buf,
+				 struct mtk_jpeg_enc_bs *bs)
+{
+	bs->dma_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
+	bs->dma_addr_offset = ctx->enable_exif ? MTK_JPEG_MAX_EXIF_SIZE : 0;
+	bs->dma_addr_offsetmask = bs->dma_addr & JPEG_ENC_DST_ADDR_OFFSET_MASK;
+	bs->size = vb2_plane_size(dst_buf, 0);
+
+	mtk_jpeg_enc_set_dst_addr(base, bs->dma_addr, bs->size,
+				  bs->dma_addr_offset,
+				  bs->dma_addr_offsetmask);
+}
+
+static 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;
+
+	mtk_jpeg_enc_set_img_size(base, ctx->out_q.crop_rect.width,
+				  ctx->out_q.crop_rect.height);
+	mtk_jpeg_enc_set_blk_num(base, ctx->out_q.fmt->fourcc,
+				 ctx->out_q.crop_rect.width,
+				 ctx->out_q.crop_rect.height);
+	mtk_jpeg_enc_set_stride(base, ctx->out_q.fmt->fourcc, ctx->out_q.w,
+				ctx->out_q.h, ctx->out_q.bytesperline[0]);
+
+	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;
+		mtk_jpeg_enc_set_src_addr(base, dma_addr, i);
+	}
+}
+
+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;
+	struct mtk_jpeg_src_buf *jpeg_src_buf;
+	struct mtk_jpeg_enc_bs enc_bs;
+	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);
+
+	ret = pm_runtime_get_sync(jpeg->dev);
+	if (ret < 0)
+		goto enc_end;
+
+	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_dst(ctx, jpeg->reg_base, &dst_buf->vb2_buf, &enc_bs);
+	mtk_jpeg_set_enc_src(ctx, jpeg->reg_base, &src_buf->vb2_buf);
+	mtk_jpeg_enc_set_config(jpeg->reg_base, ctx->out_q.fmt->hw_format,
+				ctx->enable_exif, ctx->enc_quality,
+				ctx->restart_interval);
+	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;
@@ -785,6 +1150,11 @@ static void mtk_jpeg_dec_device_run(void *priv)
 	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
 }
 
+static int mtk_jpeg_enc_job_ready(void *priv)
+{
+		return 1;
+}
+
 static int mtk_jpeg_dec_job_ready(void *priv)
 {
 	struct mtk_jpeg_ctx *ctx = priv;
@@ -792,6 +1162,11 @@ static int mtk_jpeg_dec_job_ready(void *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,
+	.job_ready  = mtk_jpeg_enc_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,
@@ -830,24 +1205,109 @@ static int mtk_jpeg_dec_queue_init(void *priv, struct vb2_queue *src_vq,
 	return ret;
 }
 
-static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg)
+static int mtk_jpeg_enc_queue_init(void *priv, struct vb2_queue *src_vq,
+				   struct vb2_queue *dst_vq)
 {
+	struct mtk_jpeg_ctx *ctx = priv;
 	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 = &mtk_jpeg_enc_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 = &mtk_jpeg_enc_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, i;
+
 	ret = mtk_smi_larb_get(jpeg->larb);
 	if (ret)
 		dev_err(jpeg->dev, "mtk_smi_larb_get larbvdec fail %d\n", ret);
-	clk_prepare_enable(jpeg->clk_jdec_smi);
-	clk_prepare_enable(jpeg->clk_jdec);
+
+	for (i = 0; i < jpeg->variant->num_clocks; i++) {
+		ret = clk_prepare_enable(jpeg->clocks[i]);
+		if (ret) {
+			while (--i >= 0)
+				clk_disable_unprepare(jpeg->clocks[i]);
+		}
+	}
 }
 
 static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg)
 {
-	clk_disable_unprepare(jpeg->clk_jdec);
-	clk_disable_unprepare(jpeg->clk_jdec_smi);
+	int i;
+
+	for (i = jpeg->variant->num_clocks - 1; i >= 0; i--)
+		clk_disable_unprepare(jpeg->clocks[i]);
 	mtk_smi_larb_put(jpeg->larb);
 }
 
+static irqreturn_t mtk_jpeg_enc_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 enc_irq_ret;
+	u32 enc_ret, 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);
+	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf);
+
+	enc_ret = mtk_jpeg_enc_get_and_clear_int_status(jpeg->reg_base);
+	enc_irq_ret = mtk_jpeg_enc_enum_result(jpeg->reg_base, enc_ret);
+
+	if (enc_irq_ret >= MTK_JPEG_ENC_RESULT_STALL)
+		mtk_jpeg_enc_reset(jpeg->reg_base);
+
+	if (enc_irq_ret != MTK_JPEG_ENC_RESULT_DONE) {
+		dev_err(jpeg->dev, "encode failed\n");
+		goto enc_end;
+	}
+
+	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;
+
+enc_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 irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
 {
 	struct mtk_jpeg_dev *jpeg = priv;
@@ -893,36 +1353,130 @@ static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
 	return IRQ_HANDLED;
 }
 
+static void mtk_jpeg_set_enc_default_params(struct mtk_jpeg_ctx *ctx)
+{
+	struct mtk_jpeg_q_data *q = &ctx->out_q;
+	struct v4l2_pix_format_mplane *pix_mp;
+
+	pix_mp = kmalloc(sizeof(*pix_mp), GFP_KERNEL);
+
+	ctx->fh.ctrl_handler = &ctx->ctrl_hdl;
+	ctx->colorspace = V4L2_COLORSPACE_JPEG,
+	ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+	ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
+	ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
+	pix_mp->width = MTK_JPEG_MIN_WIDTH;
+	pix_mp->height = MTK_JPEG_MIN_HEIGHT;
+
+	q->fmt = mtk_jpeg_find_format(V4L2_PIX_FMT_YUYV,
+				      MTK_JPEG_FMT_FLAG_ENC_OUTPUT);
+	vidioc_try_fmt(container_of(pix_mp, struct v4l2_format,
+				    fmt.pix_mp), q->fmt);
+	q->w = pix_mp->width;
+	q->h = pix_mp->height;
+	q->crop_rect.width = pix_mp->width;
+	q->crop_rect.height = pix_mp->height;
+	q->sizeimage[0] = pix_mp->plane_fmt[0].sizeimage;
+	q->bytesperline[0] = pix_mp->plane_fmt[0].bytesperline;
+
+	q = &ctx->cap_q;
+	q->fmt = mtk_jpeg_find_format(V4L2_PIX_FMT_JPEG,
+				      MTK_JPEG_FMT_FLAG_ENC_CAPTURE);
+	pix_mp->width = MTK_JPEG_MIN_WIDTH;
+	pix_mp->height = MTK_JPEG_MIN_HEIGHT;
+	vidioc_try_fmt(container_of(pix_mp, struct v4l2_format,
+				    fmt.pix_mp), q->fmt);
+	q->w = pix_mp->width;
+	q->h = pix_mp->height;
+	q->sizeimage[0] = pix_mp->plane_fmt[0].sizeimage;
+	q->bytesperline[0] = pix_mp->plane_fmt[0].bytesperline;
+}
+
 static void mtk_jpeg_set_dec_default_params(struct mtk_jpeg_ctx *ctx)
 {
 	struct mtk_jpeg_q_data *q = &ctx->out_q;
+	struct v4l2_pix_format_mplane *pix_mp;
 	int i;
 
+	pix_mp = kmalloc(sizeof(*pix_mp), GFP_KERNEL);
+
+	ctx->fh.ctrl_handler = &ctx->ctrl_hdl;
 	ctx->colorspace = V4L2_COLORSPACE_JPEG,
 	ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
 	ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
 	ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
-
-	q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG,
-					      MTK_JPEG_FMT_TYPE_OUTPUT);
-	q->w = MTK_JPEG_MIN_WIDTH;
-	q->h = MTK_JPEG_MIN_HEIGHT;
-	q->bytesperline[0] = 0;
-	q->sizeimage[0] = MTK_JPEG_DEFAULT_SIZEIMAGE;
+	pix_mp->width = MTK_JPEG_MIN_WIDTH;
+	pix_mp->height = MTK_JPEG_MIN_HEIGHT;
+
+	q->fmt = mtk_jpeg_find_format(V4L2_PIX_FMT_JPEG,
+				      MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
+	vidioc_try_fmt(container_of(pix_mp, struct v4l2_format,
+				    fmt.pix_mp), q->fmt);
+	q->w = pix_mp->width;
+	q->h = pix_mp->height;
+	q->sizeimage[0] = pix_mp->plane_fmt[0].sizeimage;
+	q->bytesperline[0] = pix_mp->plane_fmt[0].bytesperline;
 
 	q = &ctx->cap_q;
-	q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_YUV420M,
-					      MTK_JPEG_FMT_TYPE_CAPTURE);
-	q->w = MTK_JPEG_MIN_WIDTH;
-	q->h = MTK_JPEG_MIN_HEIGHT;
-
+	q->fmt = mtk_jpeg_find_format(V4L2_PIX_FMT_YUV420M,
+				      MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
+	pix_mp->width = MTK_JPEG_MIN_WIDTH;
+	pix_mp->height = MTK_JPEG_MIN_HEIGHT;
+	vidioc_try_fmt(container_of(pix_mp, struct v4l2_format,
+				    fmt.pix_mp), q->fmt);
+	q->w = pix_mp->width;
+	q->h = pix_mp->height;
 	for (i = 0; i < q->fmt->colplanes; i++) {
-		u32 stride = q->w * q->fmt->h_sample[i] / 4;
-		u32 h = q->h * q->fmt->v_sample[i] / 4;
+		q->sizeimage[i] = pix_mp->plane_fmt[i].sizeimage;
+		q->bytesperline[i] = pix_mp->plane_fmt[i].bytesperline;
+	}
+}
 
-		q->bytesperline[i] = stride;
-		q->sizeimage[i] = stride * h;
+static int mtk_jpeg_enc_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_enc_queue_init);
+	if (IS_ERR(ctx->fh.m2m_ctx)) {
+		ret = PTR_ERR(ctx->fh.m2m_ctx);
+		goto error;
 	}
+
+	ret = mtk_jpeg_enc_ctrls_setup(ctx);
+	if (ret) {
+		v4l2_err(&jpeg->v4l2_dev, "Failed to setup jpeg enc controls\n");
+		goto error;
+	}
+	mtk_jpeg_set_enc_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_dec_open(struct file *file)
@@ -953,6 +1507,12 @@ static int mtk_jpeg_dec_open(struct file *file)
 		goto error;
 	}
 
+	v4l2_ctrl_handler_init(&ctx->ctrl_hdl, 0);
+	ret = v4l2_ctrl_handler_setup(&ctx->ctrl_hdl);
+	if (ret) {
+		v4l2_err(&jpeg->v4l2_dev, "Failed to setup jpeg dec controls\n");
+		goto error;
+	}
 	mtk_jpeg_set_dec_default_params(ctx);
 	mutex_unlock(&jpeg->lock);
 	return 0;
@@ -973,6 +1533,7 @@ static int mtk_jpeg_release(struct file *file)
 
 	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);
@@ -980,6 +1541,15 @@ static int mtk_jpeg_release(struct file *file)
 	return 0;
 }
 
+static const struct v4l2_file_operations mtk_jpeg_enc_fops = {
+	.owner          = THIS_MODULE,
+	.open           = mtk_jpeg_enc_open,
+	.release        = mtk_jpeg_release,
+	.poll           = v4l2_m2m_fop_poll,
+	.unlocked_ioctl = video_ioctl2,
+	.mmap           = v4l2_m2m_fop_mmap,
+};
+
 static const struct v4l2_file_operations mtk_jpeg_dec_fops = {
 	.owner          = THIS_MODULE,
 	.open           = mtk_jpeg_dec_open,
@@ -993,6 +1563,7 @@ static int mtk_jpeg_clk_init(struct mtk_jpeg_dev *jpeg)
 {
 	struct device_node *node;
 	struct platform_device *pdev;
+	int i;
 
 	node = of_parse_phandle(jpeg->dev->of_node, "mediatek,larb", 0);
 	if (!node)
@@ -1006,12 +1577,17 @@ static int mtk_jpeg_clk_init(struct mtk_jpeg_dev *jpeg)
 
 	jpeg->larb = &pdev->dev;
 
-	jpeg->clk_jdec = devm_clk_get(jpeg->dev, "jpgdec");
-	if (IS_ERR(jpeg->clk_jdec))
-		return PTR_ERR(jpeg->clk_jdec);
+	for (i = 0; i < jpeg->variant->num_clocks; i++) {
+		jpeg->clocks[i] = devm_clk_get(jpeg->dev,
+					       jpeg->variant->clk_names[i]);
+		if (IS_ERR(jpeg->clocks[i])) {
+			dev_err(&pdev->dev, "failed to get clock: %s\n",
+				jpeg->variant->clk_names[i]);
+			return PTR_ERR(jpeg->clocks[i]);
+		}
+	}
 
-	jpeg->clk_jdec_smi = devm_clk_get(jpeg->dev, "jpgdec-smi");
-	return PTR_ERR_OR_ZERO(jpeg->clk_jdec_smi);
+	return 0;
 }
 
 static int mtk_jpeg_probe(struct platform_device *pdev)
@@ -1028,6 +1604,7 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 	mutex_init(&jpeg->lock);
 	spin_lock_init(&jpeg->hw_lock);
 	jpeg->dev = &pdev->dev;
+	jpeg->variant = of_device_get_match_data(jpeg->dev);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	jpeg->reg_base = devm_ioremap_resource(&pdev->dev, res);
@@ -1042,8 +1619,12 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 		return jpeg_irq;
 	}
 
-	ret = devm_request_irq(&pdev->dev, jpeg_irq, mtk_jpeg_dec_irq, 0,
-			       pdev->name, jpeg);
+	if (jpeg->variant->is_encoder)
+		ret = devm_request_irq(&pdev->dev, jpeg_irq, mtk_jpeg_enc_irq,
+				       0, pdev->name, jpeg);
+	else
+		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 jpeg_irq %d (%d)\n",
 			jpeg_irq, ret);
@@ -1063,7 +1644,10 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 		goto err_dev_register;
 	}
 
-	jpeg->m2m_dev = v4l2_m2m_init(&mtk_jpeg_dec_m2m_ops);
+	if (jpeg->variant->is_encoder)
+		jpeg->m2m_dev = v4l2_m2m_init(&mtk_jpeg_enc_m2m_ops);
+	else
+		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);
@@ -1076,9 +1660,15 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 		goto err_vfd_jpeg_alloc;
 	}
 	snprintf(jpeg->vdev->name, sizeof(jpeg->vdev->name),
-		 "%s-dec", MTK_JPEG_NAME);
-	jpeg->vdev->fops = &mtk_jpeg_dec_fops;
-	jpeg->vdev->ioctl_ops = &mtk_jpeg_dec_ioctl_ops;
+		 "%s-%s", MTK_JPEG_NAME,
+		 jpeg->variant->is_encoder ? "enc" : "dec");
+	if (jpeg->variant->is_encoder) {
+		jpeg->vdev->fops = &mtk_jpeg_enc_fops;
+		jpeg->vdev->ioctl_ops = &mtk_jpeg_enc_ioctl_ops;
+	} else {
+		jpeg->vdev->fops = &mtk_jpeg_dec_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;
@@ -1095,8 +1685,9 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 
 	video_set_drvdata(jpeg->vdev, jpeg);
 	v4l2_info(&jpeg->v4l2_dev,
-		  "decoder device registered as /dev/video%d (%d,%d)\n",
-		  jpeg->vdev->num, VIDEO_MAJOR, jpeg->vdev->minor);
+		  "jpeg %s device registered as /dev/video%d (%d,%d)\n",
+		  jpeg->variant->is_encoder ? "enc" : "dec", jpeg->vdev->num,
+		  VIDEO_MAJOR, jpeg->vdev->minor);
 
 	platform_set_drvdata(pdev, jpeg);
 
@@ -1187,14 +1778,36 @@ static const struct dev_pm_ops mtk_jpeg_pm_ops = {
 	SET_RUNTIME_PM_OPS(mtk_jpeg_pm_suspend, mtk_jpeg_pm_resume, NULL)
 };
 
+static struct mtk_jpeg_variant mt8173_jpeg_drvdata = {
+	.is_encoder	= false,
+	.clk_names	= {"jpgdec-smi", "jpgdec"},
+	.num_clocks	= 2,
+};
+
+static struct mtk_jpeg_variant mt2701_jpeg_drvdata = {
+	.is_encoder	= false,
+	.clk_names	= {"jpgdec-smi", "jpgdec"},
+	.num_clocks	= 2,
+};
+
+static struct mtk_jpeg_variant mtk_jpeg_drvdata = {
+	.is_encoder	= true,
+	.clk_names	= {"jpgenc"},
+	.num_clocks	= 1,
+};
+
 static const struct of_device_id mtk_jpeg_match[] = {
 	{
 		.compatible = "mediatek,mt8173-jpgdec",
-		.data       = NULL,
+		.data = &mt8173_jpeg_drvdata,
 	},
 	{
 		.compatible = "mediatek,mt2701-jpgdec",
-		.data       = NULL,
+		.data = &mt2701_jpeg_drvdata,
+	},
+	{
+		.compatible = "mediatek,mtk-jpgenc",
+		.data = &mtk_jpeg_drvdata,
 	},
 	{},
 };
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
index 0b59e48495d5..9ec2c3350a16 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
@@ -3,6 +3,7 @@
  * Copyright (c) 2016 MediaTek Inc.
  * Author: Ming Hsiu Tsai <minghsiu.tsai@xxxxxxxxxxxx>
  *         Rick Chang <rick.chang@xxxxxxxxxxxx>
+ *         Xia Jiang <xia.jiang@xxxxxxxxxxxx>
  */
 
 #ifndef _MTK_JPEG_CORE_H
@@ -16,19 +17,21 @@
 #define MTK_JPEG_NAME		"mtk-jpeg"
 
 #define MTK_JPEG_COMP_MAX		3
+#define MTK_JPEG_MAX_CLOCKS		2
+
 
 #define MTK_JPEG_FMT_FLAG_DEC_OUTPUT	BIT(0)
 #define MTK_JPEG_FMT_FLAG_DEC_CAPTURE	BIT(1)
-
-#define MTK_JPEG_FMT_TYPE_OUTPUT	1
-#define MTK_JPEG_FMT_TYPE_CAPTURE	2
+#define MTK_JPEG_FMT_FLAG_ENC_OUTPUT	BIT(2)
+#define MTK_JPEG_FMT_FLAG_ENC_CAPTURE	BIT(3)
 
 #define MTK_JPEG_MIN_WIDTH	32U
 #define MTK_JPEG_MIN_HEIGHT	32U
-#define MTK_JPEG_MAX_WIDTH	8192U
-#define MTK_JPEG_MAX_HEIGHT	8192U
+#define MTK_JPEG_MAX_WIDTH	65535U
+#define MTK_JPEG_MAX_HEIGHT	65535U
 
 #define MTK_JPEG_DEFAULT_SIZEIMAGE	(1 * 1024 * 1024)
+#define MTK_JPEG_MAX_EXIF_SIZE	(64 * 1024)
 
 /**
  * enum mtk_jpeg_ctx_state - states of the context state machine
@@ -42,6 +45,18 @@ enum mtk_jpeg_ctx_state {
 	MTK_JPEG_SOURCE_CHANGE,
 };
 
+/**
+ * mtk_jpeg_variant - mtk jpeg driver variant
+ * @is_encoder:		driver mode is jpeg encoder
+ * @clk_names:		clock names
+ * @num_clocks:		numbers of clock
+ */
+struct mtk_jpeg_variant {
+	bool is_encoder;
+	const char		*clk_names[MTK_JPEG_MAX_CLOCKS];
+	int			num_clocks;
+};
+
 /**
  * struct mt_jpeg - JPEG IP abstraction
  * @lock:		the mutex protecting this structure
@@ -53,9 +68,9 @@ enum mtk_jpeg_ctx_state {
  * @alloc_ctx:		videobuf2 memory allocator's context
  * @vdev:		video device node for jpeg mem2mem mode
  * @reg_base:		JPEG registers mapping
- * @clk_jdec:		JPEG hw working clock
- * @clk_jdec_smi:	JPEG SMI bus clock
  * @larb:		SMI device
+ * @clocks:		JPEG IP clock(s)
+ * @variant:		driver variant to be used
  */
 struct mtk_jpeg_dev {
 	struct mutex		lock;
@@ -67,14 +82,15 @@ struct mtk_jpeg_dev {
 	void			*alloc_ctx;
 	struct video_device	*vdev;
 	void __iomem		*reg_base;
-	struct clk		*clk_jdec;
-	struct clk		*clk_jdec_smi;
 	struct device		*larb;
+	struct clk		*clocks[MTK_JPEG_MAX_CLOCKS];
+	const struct mtk_jpeg_variant *variant;
 };
 
 /**
  * struct 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)
@@ -84,6 +100,7 @@ struct mtk_jpeg_dev {
  */
 struct mtk_jpeg_fmt {
 	u32	fourcc;
+	u32	hw_format;
 	int	h_sample[VIDEO_MAX_PLANES];
 	int	v_sample[VIDEO_MAX_PLANES];
 	int	colplanes;
@@ -107,6 +124,7 @@ struct mtk_jpeg_q_data {
 	u32			h;
 	u32			bytesperline[VIDEO_MAX_PLANES];
 	u32			sizeimage[VIDEO_MAX_PLANES];
+	struct v4l2_rect	crop_rect;
 };
 
 /**
@@ -116,6 +134,10 @@ struct mtk_jpeg_q_data {
  * @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
  * @colorspace: enum v4l2_colorspace; supplemental to pixelformat
  * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
  * @quantization: enum v4l2_quantization, colorspace quantization
@@ -127,6 +149,10 @@ struct mtk_jpeg_ctx {
 	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;
 
 	enum v4l2_colorspace colorspace;
 	enum v4l2_ycbcr_encoding ycbcr_enc;
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
new file mode 100644
index 000000000000..7fc1de920a75
--- /dev/null
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
@@ -0,0 +1,193 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ * Author: Xia Jiang <xia.jiang@xxxxxxxxxxxx>
+ *
+ */
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <media/videobuf2-core.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(0x00, base + JPEG_ENC_RSTB);
+	writel(JPEG_ENC_RESET_BIT, base + JPEG_ENC_RSTB);
+	writel(0x00, base + JPEG_ENC_CODEC_SEL);
+}
+
+u32 mtk_jpeg_enc_get_and_clear_int_status(void __iomem *base)
+{
+	u32 ret;
+
+	ret = readl(base + JPEG_ENC_INT_STS) &
+		    JPEG_ENC_INT_STATUS_MASK_ALLIRQ;
+	if (ret)
+		writel(0, base + JPEG_ENC_INT_STS);
+
+	return ret;
+}
+
+u32 mtk_jpeg_enc_get_file_size(void __iomem *base)
+{
+	return readl(base + JPEG_ENC_DMA_ADDR0) -
+	       readl(base + JPEG_ENC_DST_ADDR0);
+}
+
+u32 mtk_jpeg_enc_enum_result(void __iomem *base, u32 irq_status)
+{
+	if (irq_status & JPEG_ENC_INT_STATUS_DONE)
+		return MTK_JPEG_ENC_RESULT_DONE;
+	else if (irq_status & JPEG_ENC_INT_STATUS_STALL)
+		return MTK_JPEG_ENC_RESULT_STALL;
+	else
+		return MTK_JPEG_ENC_RESULT_VCODEC_IRQ;
+}
+
+void mtk_jpeg_enc_set_img_size(void __iomem *base, u32 width, u32 height)
+{
+	u32 value;
+
+	value = width << 16 | height;
+	writel(value, base + JPEG_ENC_IMG_SIZE);
+}
+
+void mtk_jpeg_enc_set_blk_num(void __iomem *base, u32 enc_format, u32 width,
+			      u32 height)
+{
+	u32 blk_num;
+	u32 is_420;
+	u32 padding_width;
+	u32 padding_height;
+	u32 luma_blocks;
+	u32 chroma_blocks;
+
+	is_420 = (enc_format == V4L2_PIX_FMT_NV12M ||
+		  enc_format == V4L2_PIX_FMT_NV21M) ? 1 : 0;
+	padding_width = round_up(width, 16);
+	padding_height = round_up(height, is_420 ? 16 : 8);
+
+	luma_blocks = padding_width / 8 * padding_height / 8;
+	if (is_420)
+		chroma_blocks = luma_blocks / 4;
+	else
+		chroma_blocks = luma_blocks / 2;
+
+	blk_num = luma_blocks + 2 * chroma_blocks - 1;
+
+	writel(blk_num, base + JPEG_ENC_BLK_NUM);
+}
+
+void mtk_jpeg_enc_set_stride(void __iomem *base, u32 enc_format, u32 width,
+			     u32 height, u32 bytesperline)
+{
+	u32 img_stride;
+	u32 mem_stride;
+
+	if (enc_format == V4L2_PIX_FMT_NV12M ||
+	    enc_format == V4L2_PIX_FMT_NV21M) {
+		img_stride = round_up(width, 16);
+		mem_stride = bytesperline;
+	} else {
+		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);
+}
+
+void mtk_jpeg_enc_set_src_addr(void __iomem *base, u32 src_addr,
+			       u32 plane_index)
+{
+	if (!plane_index)
+		writel(src_addr, base + JPEG_ENC_SRC_LUMA_ADDR);
+	else
+		writel(src_addr, base + JPEG_ENC_SRC_CHROMA_ADDR);
+}
+
+void mtk_jpeg_enc_set_dst_addr(void __iomem *base, u32 dst_addr,
+			       u32 stall_size, u32 init_offset,
+			       u32 offset_mask)
+{
+	writel(init_offset & ~0xf, base + JPEG_ENC_OFFSET_ADDR);
+	writel(offset_mask & 0xf, base + JPEG_ENC_BYTE_OFFSET_MASK);
+	writel(dst_addr & ~0xf, base + JPEG_ENC_DST_ADDR0);
+	writel((dst_addr + stall_size) & ~0xf, base + JPEG_ENC_STALL_ADDR0);
+}
+
+static void mtk_jpeg_enc_set_quality(void __iomem *base, u32 quality)
+{
+	u32 value;
+	u32 i, enc_quality;
+
+	enc_quality = mtk_jpeg_enc_quality[0].hardware_value;
+	for (i = 0; i < ARRAY_SIZE(mtk_jpeg_enc_quality); i++) {
+		if (quality <= mtk_jpeg_enc_quality[i].quality_param) {
+			enc_quality = mtk_jpeg_enc_quality[i].hardware_value;
+			break;
+		}
+	}
+
+	value = readl(base + JPEG_ENC_QUALITY);
+	value = (value & JPEG_ENC_QUALITY_MASK) | enc_quality;
+	writel(value, base + JPEG_ENC_QUALITY);
+}
+
+static void mtk_jpeg_enc_set_ctrl(void __iomem *base, u32 enc_format,
+				  bool exif_en, u32 restart_interval)
+{
+	u32 value;
+
+	value = readl(base + JPEG_ENC_CTRL);
+	value &= ~JPEG_ENC_CTRL_YUV_FORMAT_MASK;
+	value |= (enc_format & 3) << 3;
+	if (exif_en)
+		value |= JPEG_ENC_CTRL_FILE_FORMAT_BIT;
+	else
+		value &= ~JPEG_ENC_CTRL_FILE_FORMAT_BIT;
+	if (restart_interval)
+		value |= JPEG_ENC_CTRL_RESTART_EN_BIT;
+	else
+		value &= ~JPEG_ENC_CTRL_RESTART_EN_BIT;
+	writel(value, base + JPEG_ENC_CTRL);
+}
+
+void mtk_jpeg_enc_set_config(void __iomem *base, u32 enc_format, bool exif_en,
+			     u32 quality, u32 restart_interval)
+{
+	mtk_jpeg_enc_set_quality(base, quality);
+
+	mtk_jpeg_enc_set_ctrl(base, enc_format, exif_en, restart_interval);
+
+	writel(restart_interval, base + JPEG_ENC_RST_MCU_NUM);
+}
+
+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);
+}
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.h
new file mode 100644
index 000000000000..73faf49b667c
--- /dev/null
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ * Author: Xia Jiang <xia.jiang@xxxxxxxxxxxx>
+ *
+ */
+
+#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_STALL	BIT(1)
+#define JPEG_ENC_INT_STATUS_VCODEC_IRQ	BIT(4)
+#define JPEG_ENC_INT_STATUS_MASK_ALLIRQ	0x13
+
+#define JPEG_ENC_DST_ADDR_OFFSET_MASK	GENMASK(3, 0)
+#define JPEG_ENC_QUALITY_MASK		GENMASK(31, 16)
+
+#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
+
+enum {
+	MTK_JPEG_ENC_RESULT_DONE,
+	MTK_JPEG_ENC_RESULT_STALL,
+	MTK_JPEG_ENC_RESULT_VCODEC_IRQ
+};
+
+/**
+ * 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;
+};
+
+/**
+ * struct mt_jpeg_enc_bs - JPEG encoder bitstream  buffer
+ * @dma_addr:			JPEG encoder destination address
+ * @size:			JPEG encoder bistream size
+ * @dma_addr_offset:		JPEG encoder offset address
+ * @dma_addr_offsetmask:	JPEG encoder destination address offset mask
+ */
+struct mtk_jpeg_enc_bs {
+	dma_addr_t	dma_addr;
+	size_t		size;
+	u32		dma_addr_offset;
+	u32		dma_addr_offsetmask;
+};
+
+void mtk_jpeg_enc_reset(void __iomem *base);
+u32 mtk_jpeg_enc_get_and_clear_int_status(void __iomem *base);
+u32 mtk_jpeg_enc_get_file_size(void __iomem *base);
+u32 mtk_jpeg_enc_enum_result(void __iomem *base, u32 irq_status);
+void mtk_jpeg_enc_set_img_size(void __iomem *base, u32 width, u32 height);
+void mtk_jpeg_enc_set_blk_num(void __iomem *base, u32 enc_format, u32 width,
+			      u32 height);
+void mtk_jpeg_enc_set_stride(void __iomem *base, u32 enc_format, u32 width,
+			     u32 height, u32 bytesperline);
+void mtk_jpeg_enc_set_src_addr(void __iomem *base, u32 src_addr,
+			       u32 plane_index);
+void mtk_jpeg_enc_set_dst_addr(void __iomem *base, u32 dst_addr,
+			       u32 stall_size, u32 init_offset,
+			       u32 offset_mask);
+void mtk_jpeg_enc_set_config(void __iomem *base, u32 enc_format, bool exif_en,
+			     u32 quality, u32 restart_interval);
+void mtk_jpeg_enc_start(void __iomem *enc_reg_base);
+
+#endif /* _MTK_JPEG_ENC_HW_H */
-- 
2.18.0





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