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 <redacted>
---
v3: delete Change-Id
    only test once handler->error after the last v4l2_ctrl_new_std()
    seperate changes of v4l2-ctrls.c and v4l2-controls.h to new patch
v2: fix compliance test fail, check created buffer size in driver
---
 drivers/media/platform/mtk-jpeg/Makefile      |   5 +-
 .../media/platform/mtk-jpeg/mtk_jpeg_core.c   | 735 ++++++++++++++----
 .../media/platform/mtk-jpeg/mtk_jpeg_core.h   | 114 ++-
 .../media/platform/mtk-jpeg/mtk_jpeg_dec_hw.h |   7 +-
 .../media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c | 175 +++++
 .../media/platform/mtk-jpeg/mtk_jpeg_enc_hw.h |  60 ++
 .../platform/mtk-jpeg/mtk_jpeg_enc_reg.h      |  49 ++
 7 files changed, 975 insertions(+), 170 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
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_reg.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 5f0990fce8ef..aa18b01802ed 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@mediatek.com>
  *         Rick Chang <rick.chang@mediatek.com>
+ *         Xia Jiang <xia.jiang@mediatek.com>
  */
 
 #include <linux/clk.h>

@@ -23,6 +24,7 @@
 #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"

@@ -31,7 +33,8 @@ static struct mtk_jpeg_fmt mtk_jpeg_formats[] = {
 	{
 		.fourcc		= V4L2_PIX_FMT_JPEG,
 		.colplanes	= 1,
-		.flags		= MTK_JPEG_FMT_FLAG_DEC_OUTPUT,
+		.flags		= MTK_JPEG_FMT_FLAG_DEC_OUTPUT |
+					MTK_JPEG_FMT_FLAG_ENC_CAPTURE,
 	},
 	{
 		.fourcc		= V4L2_PIX_FMT_YUV420M,

@@ -51,6 +54,42 @@ static struct mtk_jpeg_fmt mtk_jpeg_formats[] = {
 		.v_align	= 3,
 		.flags		= MTK_JPEG_FMT_FLAG_DEC_CAPTURE,
 	},
+	{
+		.fourcc		= V4L2_PIX_FMT_NV12M,
+		.h_sample	= {4, 2, 2},
+		.v_sample	= {4, 2, 2},
+		.colplanes	= 2,
+		.h_align	= 4,
+		.v_align	= 4,
+		.flags		= MTK_JPEG_FMT_FLAG_ENC_OUTPUT,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_NV21M,
+		.h_sample	= {4, 2, 2},
+		.v_sample	= {4, 2, 2},
+		.colplanes	= 2,
+		.h_align	= 4,
+		.v_align	= 4,
+		.flags		= MTK_JPEG_FMT_FLAG_ENC_OUTPUT,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_YUYV,
+		.h_sample	= {4, 2, 2},
+		.v_sample	= {4, 4, 4},
+		.colplanes	= 1,
+		.h_align	= 4,
+		.v_align	= 3,
+		.flags		= MTK_JPEG_FMT_FLAG_ENC_OUTPUT,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_YVYU,
+		.h_sample	= {4, 2, 2},
+		.v_sample	= {4, 4, 4},
+		.colplanes	= 1,
+		.h_align	= 4,
+		.v_align	= 3,
+		.flags		= MTK_JPEG_FMT_FLAG_ENC_OUTPUT,
+	},
 };
 
 #define MTK_JPEG_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_formats)

@@ -65,11 +104,19 @@ struct mtk_jpeg_src_buf {
 	struct list_head list;
 	int flags;
 	struct mtk_jpeg_dec_param dec_param;
+	struct mtk_jpeg_enc_param enc_param;
 };
 
+#define MTK_MAX_CTRLS_HINT	20
+
 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);

@@ -86,10 +133,70 @@ static int mtk_jpeg_querycap(struct file *file, void *priv,
 {
 	struct mtk_jpeg_dev *jpeg = video_drvdata(file);
 
-	strscpy(cap->driver, MTK_JPEG_NAME " decoder", sizeof(cap->driver));
-	strscpy(cap->card, MTK_JPEG_NAME " decoder", sizeof(cap->card));
-	snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
-		 dev_name(jpeg->dev));
+	strscpy(cap->driver, MTK_JPEG_NAME, sizeof(cap->driver));
+	if (jpeg->mode ==  MTK_JPEG_ENC)
+		strscpy(cap->card, MTK_JPEG_NAME " encoder", sizeof(cap->card));
+	else
+		strscpy(cap->card, MTK_JPEG_NAME " decoder", sizeof(cap->card));
+		snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
+			 dev_name(jpeg->dev));
+
+	return 0;
+}
+
+static int vidioc_jpeg_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct mtk_jpeg_ctx *ctx = ctrl_to_ctx(ctrl);
+	struct jpeg_enc_param *p = &ctx->jpeg_param;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	int ret = 0;
+
+	switch (ctrl->id) {
+	case V4L2_CID_JPEG_RESTART_INTERVAL:
+		p->restart_interval = ctrl->val;
+		break;
+	case V4L2_CID_JPEG_COMPRESSION_QUALITY:
+		p->enc_quality = ctrl->val;
+		break;
+	case V4L2_CID_JPEG_ENABLE_EXIF:
+		p->enable_exif = ctrl->val;
+		break;
+	}
+
+	v4l2_dbg(2, debug, &jpeg->v4l2_dev, "%s val = %d",
+		 v4l2_ctrl_get_name(ctrl->id), ctrl->val);
+
+	return ret;
+}
+
+static const struct v4l2_ctrl_ops mtk_jpeg_ctrl_ops = {
+	.s_ctrl = vidioc_jpeg_s_ctrl,
+};
+
+int mtk_jpeg_ctrls_setup(struct mtk_jpeg_ctx *ctx)
+{
+	const struct v4l2_ctrl_ops *ops = &mtk_jpeg_ctrl_ops;
+	struct v4l2_ctrl_handler *handler = &ctx->ctrl_hdl;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+
+	v4l2_ctrl_handler_init(handler, MTK_MAX_CTRLS_HINT);
+
+	if (jpeg->mode == MTK_JPEG_ENC) {
+		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_ENABLE_EXIF, 0,
+				  1, 1, 0);
+
+		if (handler->error) {
+			v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
+			return handler->error;
+		}
+	}
+
+	v4l2_ctrl_handler_setup(&ctx->ctrl_hdl);
 
 	return 0;
 }

@@ -118,23 +225,29 @@ static int mtk_jpeg_enum_fmt(struct mtk_jpeg_fmt *mtk_jpeg_formats, int n,
 static int mtk_jpeg_enum_fmt_vid_cap(struct file *file, void *priv,
 				     struct v4l2_fmtdesc *f)
 {
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+
 	return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
+				 ctx->jpeg->mode == MTK_JPEG_ENC ?
+				 MTK_JPEG_FMT_FLAG_ENC_CAPTURE :
 				 MTK_JPEG_FMT_FLAG_DEC_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);
+
 	return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
+				 ctx->jpeg->mode == MTK_JPEG_ENC ?
+				 MTK_JPEG_FMT_FLAG_ENC_OUTPUT :
 				 MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
 }
 
-static struct mtk_jpeg_q_data *mtk_jpeg_get_q_data(struct mtk_jpeg_ctx *ctx,
-						   enum v4l2_buf_type type)
+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;
+	return V4L2_TYPE_IS_OUTPUT(type) ? &ctx->out_q : &ctx->cap_q;
 }
 
 static struct mtk_jpeg_fmt *mtk_jpeg_find_format(struct mtk_jpeg_ctx *ctx,

@@ -143,9 +256,14 @@ static struct mtk_jpeg_fmt *mtk_jpeg_find_format(struct mtk_jpeg_ctx *ctx,
 {
 	unsigned int k, fmt_flag;
 
-	fmt_flag = (fmt_type == MTK_JPEG_FMT_TYPE_OUTPUT) ?
-		   MTK_JPEG_FMT_FLAG_DEC_OUTPUT :
-		   MTK_JPEG_FMT_FLAG_DEC_CAPTURE;
+	if (ctx->jpeg->mode ==  MTK_JPEG_ENC)
+		fmt_flag = (fmt_type == MTK_JPEG_FMT_TYPE_OUTPUT) ?
+			   MTK_JPEG_FMT_FLAG_ENC_OUTPUT :
+			   MTK_JPEG_FMT_FLAG_ENC_CAPTURE;
+	else
+		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_NUM_FORMATS; k++) {
 		struct mtk_jpeg_fmt *fmt = &mtk_jpeg_formats[k];

@@ -202,7 +320,7 @@ static int mtk_jpeg_try_fmt_mplane(struct v4l2_format *f,
 {
 	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
 	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
-	int i;
+	int i, align_w, align_h;
 
 	memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
 	pix_mp->field = V4L2_FIELD_NONE;

@@ -216,36 +334,111 @@ static int mtk_jpeg_try_fmt_mplane(struct v4l2_format *f,
 	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 (jpeg->mode == MTK_JPEG_ENC) {
+			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);
+			align_w = pix_mp->width;
+			align_h = pix_mp->height;
+			align_w = round_up(align_w, 2);
+			if (pix_mp->num_planes == 1U) {
+				align_w = align_w << 1;
+				mtk_jpeg_bound_align_image(&align_w,
+							   MTK_JPEG_MIN_WIDTH,
+							   MTK_JPEG_MAX_WIDTH,
+							   5, &align_h,
+							   MTK_JPEG_MIN_HEIGHT,
+							   MTK_JPEG_MAX_HEIGHT,
+							   3);
+				pix_mp->plane_fmt[0].bytesperline = align_w;
+				pix_mp->plane_fmt[0].sizeimage =
+					align_w * align_h;
+			} else if (pix_mp->num_planes == 2U) {
+				mtk_jpeg_bound_align_image(&align_w,
+							   MTK_JPEG_MIN_WIDTH,
+							   MTK_JPEG_MAX_WIDTH,
+							   4, &align_h,
+							   MTK_JPEG_MIN_HEIGHT,
+							   MTK_JPEG_MAX_HEIGHT,
+							   4);
+				pix_mp->plane_fmt[0].bytesperline = align_w;
+				pix_mp->plane_fmt[0].sizeimage =
+					align_w * align_h;
+				pix_mp->plane_fmt[1].bytesperline = align_w;
+				pix_mp->plane_fmt[1].sizeimage =
+					(align_w * align_h) / 2;
+			} else {
+				v4l2_err(&ctx->jpeg->v4l2_dev,
+					 "Unsupport num planes = %d\n",
+					 pix_mp->num_planes);
+			}
+			goto end;
+		} else {
+			struct v4l2_plane_pix_format *pfmt =
+						&pix_mp->plane_fmt[0];
+
+			mtk_jpeg_bound_align_image(&pix_mp->width,
+						   MTK_JPEG_MIN_WIDTH,
+					   MTK_JPEG_MAX_WIDTH, 0,
+						   &pix_mp->height,
+						   MTK_JPEG_MIN_HEIGHT,
+					   MTK_JPEG_MAX_HEIGHT, 0);
+
+			pfmt->bytesperline = 0;
+			/* Source size must be aligned to 128 */
+			pfmt->sizeimage = mtk_jpeg_align(pfmt->sizeimage, 128);
+			if (pfmt->sizeimage == 0)
+				pfmt->sizeimage = MTK_JPEG_DEFAULT_SIZEIMAGE;
+
+			goto end;
+		}
+	}

 
+	/* type is MTK_JPEG_FMT_TYPE_CAPTURE */
+	if (jpeg->mode == MTK_JPEG_ENC) {
 		mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
 					   MTK_JPEG_MAX_WIDTH, 0,
 					   &pix_mp->height, MTK_JPEG_MIN_HEIGHT,
 					   MTK_JPEG_MAX_HEIGHT, 0);
 
-		memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
-		pfmt->bytesperline = 0;
-		/* Source size must be aligned to 128 */
-		pfmt->sizeimage = mtk_jpeg_align(pfmt->sizeimage, 128);
-		if (pfmt->sizeimage == 0)
-			pfmt->sizeimage = MTK_JPEG_DEFAULT_SIZEIMAGE;
-		goto end;
+		if (fmt->fourcc == V4L2_PIX_FMT_JPEG) {
+			pix_mp->plane_fmt[0].bytesperline = 0;
+			pix_mp->plane_fmt[0].sizeimage =
+				mtk_jpeg_align(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(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);
+		mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
+					   MTK_JPEG_MAX_WIDTH, fmt->h_align,
+					   &pix_mp->height,
+					   MTK_JPEG_MIN_HEIGHT,
+					   MTK_JPEG_MAX_HEIGHT, fmt->v_align);
+
+		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;
+		}
 	}
 
-	/* type is MTK_JPEG_FMT_TYPE_CAPTURE */
-	mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
-				   MTK_JPEG_MAX_WIDTH, fmt->h_align,
-				   &pix_mp->height, MTK_JPEG_MIN_HEIGHT,
-				   MTK_JPEG_MAX_HEIGHT, fmt->v_align);
-
 	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;
-
+		struct v4l2_plane_pix_format *pfmt =
+				&pix_mp->plane_fmt[i];
 		memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
-		pfmt->bytesperline = stride;
-		pfmt->sizeimage = stride * h;
 	}
 end:
 	v4l2_dbg(2, debug, &jpeg->v4l2_dev, "wxh:%ux%u\n",

@@ -446,9 +639,9 @@ static int mtk_jpeg_subscribe_event(struct v4l2_fh *fh,
 	switch (sub->type) {
 	case V4L2_EVENT_SOURCE_CHANGE:
 		return v4l2_src_change_event_subscribe(fh, sub);
-	default:
-		return -EINVAL;
 	}
+
+	return v4l2_ctrl_subscribe_event(fh, sub);
 }

 
 static int mtk_jpeg_g_selection(struct file *file, void *priv,

@@ -571,6 +764,13 @@ static int mtk_jpeg_queue_setup(struct vb2_queue *q,
 	if (!q_data)
 		return -EINVAL;
 
+	if (*num_planes) {
+		for (i = 0; i < *num_planes; i++)
+			if (sizes[i] < q_data->sizeimage[i])
+				return -EINVAL;
+		return 0;
+	}
+
 	*num_planes = q_data->fmt->colplanes;
 	for (i = 0; i < q_data->fmt->colplanes; i++) {
 		sizes[i] = q_data->sizeimage[i];

@@ -651,10 +851,92 @@ static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx *ctx,
 		 param->dec_w, param->dec_h);
 }
 
+static void mtk_jpeg_set_param(struct mtk_jpeg_ctx *ctx,
+			       struct mtk_jpeg_enc_param *param)
+{
+	struct mtk_jpeg_q_data *q_data_src = &ctx->out_q;
+	struct jpeg_enc_param *jpeg_params = &ctx->jpeg_param;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	u32 width_even;
+	u32 is_420;
+	u32 padding_width;
+	u32 padding_height;
+
+	switch (q_data_src->fmt->fourcc) {
+	case V4L2_PIX_FMT_YUYV:
+		param->enc_format = JPEG_YUV_FORMAT_YUYV;
+		break;
+	case V4L2_PIX_FMT_YVYU:
+		param->enc_format = JPEG_YUV_FORMAT_YVYU;
+		break;
+	case V4L2_PIX_FMT_NV12M:
+		param->enc_format = JPEG_YUV_FORMAT_NV12;
+		break;
+	case V4L2_PIX_FMT_NV21M:
+		param->enc_format = JPEG_YUV_FORMAT_NV12;
+		break;
+	default:
+		v4l2_err(&jpeg->v4l2_dev, "Unsupport fourcc =%d\n",
+			 q_data_src->fmt->fourcc);
+		break;
+	}
+	param->enc_w = q_data_src->w;
+	param->enc_h = q_data_src->h;
+
+	if (jpeg_params->enc_quality >= 97)
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q97;
+	else if (jpeg_params->enc_quality >= 95)
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q95;
+	else if (jpeg_params->enc_quality >= 92)
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q92;
+	else if (jpeg_params->enc_quality >= 90)
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q90;
+	else if (jpeg_params->enc_quality >= 87)
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q87;
+	else if (jpeg_params->enc_quality >= 84)
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q84;
+	else if (jpeg_params->enc_quality >= 80)
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q80;
+	else if (jpeg_params->enc_quality >= 74)
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q74;
+	else if (jpeg_params->enc_quality >= 64)
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q64;
+	else if (jpeg_params->enc_quality >= 60)
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q60;
+	else
+		param->enc_quality = JPEG_ENCODE_QUALITY_Q48;
+
+	param->enable_exif = jpeg_params->enable_exif;
+	param->restart_interval = jpeg_params->restart_interval;
+
+	width_even = ((param->enc_w + 1) >> 1) << 1;
+	is_420 = (param->enc_format == JPEG_YUV_FORMAT_NV12 ||
+		  param->enc_format == JPEG_YUV_FORMAT_NV12) ? 1 : 0;
+	padding_width = mtk_jpeg_align(param->enc_w, 16);
+	padding_height = mtk_jpeg_align(param->enc_h, is_420 ? 16 : 8);
+	if (!is_420)
+		width_even = width_even << 1;
+
+	param->img_stride = mtk_jpeg_align(width_even, (is_420 ? 16 : 32));
+	param->mem_stride = mtk_jpeg_align(width_even, (is_420 ? 16 : 32));
+	param->total_encdu =
+		((padding_width >> 4) * (padding_height >> (is_420 ? 4 : 3)) *
+		(is_420 ? 6 : 4)) - 1;
+
+	v4l2_dbg(0, 2, &jpeg->v4l2_dev, "fmt %d, w,h %d,%d, enable_exif %d,",
+		 "enc_quality %d, restart_interval %d,img_stride %d,",
+		 "mem_stride %d,totalEncDu %d\n",
+		 param->enc_format, param->enc_w, param->enc_h,
+		 param->enable_exif, param->enc_quality,
+		 param->restart_interval, param->img_stride,
+		 param->mem_stride, param->total_encdu);
+}
+
 static void mtk_jpeg_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_enc_param *enc_param;
 	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
 	struct mtk_jpeg_src_buf *jpeg_src_buf;
 	bool header_valid;

@@ -666,29 +948,45 @@ static void mtk_jpeg_buf_queue(struct vb2_buffer *vb)
 		goto end;
 
 	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
-	param = &jpeg_src_buf->dec_param;
-	memset(param, 0, sizeof(*param));
-
-	if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) {
-		v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Got eos\n");
-		goto end;
-	}
-	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);
+	if (jpeg->mode ==  MTK_JPEG_ENC) {
+		enc_param = &jpeg_src_buf->enc_param;
+		memset(enc_param, 0, sizeof(*enc_param));
+		mtk_jpeg_set_param(ctx, enc_param);
+		if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) {
+			v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Got eos");
+			goto end;
+		}
+		if (ctx->state == MTK_JPEG_INIT)
+			ctx->state = MTK_JPEG_RUNNING;
+	} else {
+		param = &jpeg_src_buf->dec_param;
+		memset(param, 0, sizeof(*param));
+
+		if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) {
+			v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Got eos\n");
+			goto end;
+		}
+		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;
+		}
 
-		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;
+		if (ctx->state == MTK_JPEG_INIT) {
+			struct vb2_queue *dst_vq;
+
+			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));

@@ -731,16 +1029,16 @@ static void mtk_jpeg_stop_streaming(struct vb2_queue *q)
 	 * subsampling. Update capture queue when the stream is off.
 	 */
 	if (ctx->state == MTK_JPEG_SOURCE_CHANGE &&
-	    !V4L2_TYPE_IS_OUTPUT(q->type)) {
+	    !V4L2_TYPE_IS_OUTPUT(q->type) &&
+	    ctx->jpeg->mode == MTK_JPEG_DEC) {
 		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)) {
+	} 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);

@@ -795,6 +1093,28 @@ 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,
+				 struct vb2_buffer *dst_buf,
+				 struct mtk_jpeg_enc_bs *bs)
+{
+	bs->dma_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0) &
+		      (~JPEG_ENC_DST_ADDR_OFFSET_MASK);
+	bs->dma_addr_offset = 0;
+	bs->dma_addr_offsetmask = bs->dma_addr & JPEG_ENC_DST_ADDR_OFFSET_MASK;
+	bs->size = mtk_jpeg_align(vb2_plane_size(dst_buf, 0), 128);
+}
+
+static void mtk_jpeg_set_enc_src(struct mtk_jpeg_ctx *ctx,
+				 struct vb2_buffer *src_buf,
+				 struct mtk_jpeg_enc_fb *fb)
+{
+	int i;
+
+	for (i = 0; i < src_buf->num_planes; i++)
+		fb->fb_addr[i].dma_addr =
+			vb2_dma_contig_plane_dma_addr(src_buf, i);
+}
+
 static void mtk_jpeg_device_run(void *priv)
 {
 	struct mtk_jpeg_ctx *ctx = priv;

@@ -805,6 +1125,8 @@ static void mtk_jpeg_device_run(void *priv)
 	struct mtk_jpeg_src_buf *jpeg_src_buf;
 	struct mtk_jpeg_bs bs;
 	struct mtk_jpeg_fb fb;
+	struct mtk_jpeg_enc_bs enc_bs;
+	struct mtk_jpeg_enc_fb enc_fb;
 	int i;
 
 	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);

@@ -815,30 +1137,45 @@ static void mtk_jpeg_device_run(void *priv)
 		for (i = 0; i < dst_buf->vb2_buf.num_planes; i++)
 			vb2_set_plane_payload(&dst_buf->vb2_buf, i, 0);
 		buf_state = VB2_BUF_STATE_DONE;
-		goto dec_end;
+		goto device_run_end;
 	}
 
-	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;
-	}
+	if (jpeg->mode == MTK_JPEG_ENC) {
+		mtk_jpeg_set_enc_dst(ctx, &dst_buf->vb2_buf, &enc_bs);
+		mtk_jpeg_set_enc_src(ctx, &src_buf->vb2_buf, &enc_fb);
+
+		spin_lock_irqsave(&jpeg->hw_lock, flags);
+		mtk_jpeg_enc_reset(jpeg->reg_base);
+		mtk_jpeg_enc_set_config(jpeg->reg_base,
+					&jpeg_src_buf->enc_param, &enc_bs,
+					&enc_fb);
+
+		mtk_jpeg_enc_start(jpeg->reg_base);
+	} else {
+		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;
+		}
 
-	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;
+		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 device_run_end;
 
-	spin_lock_irqsave(&jpeg->hw_lock, flags);
-	mtk_jpeg_dec_reset(jpeg->dec_reg_base);
-	mtk_jpeg_dec_set_config(jpeg->dec_reg_base,
-				&jpeg_src_buf->dec_param, &bs, &fb);
+		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->dec_reg_base);
+		mtk_jpeg_dec_start(jpeg->reg_base);
+	}
 	spin_unlock_irqrestore(&jpeg->hw_lock, flags);
 	return;
 
-dec_end:
+device_run_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);

@@ -898,30 +1235,30 @@ static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg)
 	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);
+	if (jpeg->mode == MTK_JPEG_DEC)
+		clk_prepare_enable(jpeg->clk_jpeg_smi);
+	clk_prepare_enable(jpeg->clk_jpeg);
 }
 
 static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg)
 {
-	clk_disable_unprepare(jpeg->clk_jdec);
-	clk_disable_unprepare(jpeg->clk_jdec_smi);
+	clk_disable_unprepare(jpeg->clk_jpeg);
+	if (jpeg->mode == MTK_JPEG_DEC)
+		clk_disable_unprepare(jpeg->clk_jpeg_smi);
 	mtk_smi_larb_put(jpeg->larb);
 }
 
-static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
+static irqreturn_t mtk_jpeg_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;
+	u32	irq_ret;
+	u32 ret, result_size;
 	int i;
 
-	dec_ret = mtk_jpeg_dec_get_int_status(jpeg->dec_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");

@@ -932,21 +1269,42 @@ static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
 	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->dec_reg_base);
+	if (jpeg->mode == MTK_JPEG_ENC) {
+		ret = mtk_jpeg_enc_get_int_status(jpeg->reg_base);
+		irq_ret = mtk_jpeg_enc_enum_result(jpeg->reg_base, ret,
+						   &result_size);
 
-	if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
-		dev_err(jpeg->dev, "decode failed\n");
-		goto dec_end;
-	}
+		if (irq_ret >= MTK_JPEG_ENC_RESULT_STALL)
+			mtk_jpeg_enc_reset(jpeg->reg_base);
+
+		if (irq_ret != MTK_JPEG_ENC_RESULT_DONE) {
+			dev_err(jpeg->dev, "encode failed\n");
+			goto irq_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]);
+		vb2_set_plane_payload(&dst_buf->vb2_buf, 0,
+				      result_size);
+	} else {
+		ret = mtk_jpeg_dec_get_int_status(jpeg->reg_base);
+		irq_ret = mtk_jpeg_dec_enum_result(ret);
+
+		if (irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
+			mtk_jpeg_dec_reset(jpeg->reg_base);
+
+		if (irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
+			dev_err(jpeg->dev, "decode failed\n");
+			goto irq_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:
+irq_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);

@@ -956,32 +1314,72 @@ static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
 static void mtk_jpeg_set_default_params(struct mtk_jpeg_ctx *ctx)
 {
 	struct mtk_jpeg_q_data *q = &ctx->out_q;
-	int i;
+	int i, align_w, align_h;
+
+	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,
+	if (ctx->jpeg->mode == MTK_JPEG_ENC) {
+		q->w = MTK_JPEG_MIN_WIDTH;
+		q->h = MTK_JPEG_MIN_HEIGHT;
+
+		q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_YUYV,
 					      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;
+
+		align_w = q->w;
+		align_h = q->h;
+		align_w = round_up(align_w, 2);
+		align_w = align_w << 1;
+		v4l_bound_align_image(&align_w,
+				      MTK_JPEG_MIN_WIDTH,
+				      MTK_JPEG_MAX_WIDTH, 5,
+				      &align_h,
+				      MTK_JPEG_MIN_HEIGHT,
+				      MTK_JPEG_MAX_HEIGHT, 3, 0);
+
+		if (align_w < MTK_JPEG_MIN_WIDTH &&
+		    (align_w + 32) <= MTK_JPEG_MAX_WIDTH)
+			align_w += 32;
+		if (align_h < MTK_JPEG_MIN_HEIGHT &&
+		    (align_h + 8) <= MTK_JPEG_MAX_HEIGHT)
+			align_h += 8;
+
+		q->sizeimage[0] = align_w * align_h;
+		q->bytesperline[0] = align_w;
+	} else {
+		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;
+	}
 
 	q = &ctx->cap_q;
-	q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_YUV420M,
+	if (ctx->jpeg->mode == MTK_JPEG_ENC) {
+		q->w = MTK_JPEG_MIN_WIDTH;
+		q->h = MTK_JPEG_MIN_HEIGHT;
+		q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG,
+					      MTK_JPEG_FMT_TYPE_CAPTURE);
+		q->bytesperline[0] = 0;
+		q->sizeimage[0] = MTK_JPEG_DEFAULT_SIZEIMAGE;
+	} else {
+		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->w = MTK_JPEG_MIN_WIDTH;
+		q->h = MTK_JPEG_MIN_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;
+		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->bytesperline[i] = stride;
-		q->sizeimage[i] = stride * h;
+			q->bytesperline[i] = stride;
+			q->sizeimage[i] = stride * h;
+		}
 	}
 }

@@ -1013,6 +1411,13 @@ static int mtk_jpeg_open(struct file *file)
 		goto error;
 	}
 
+	ret = mtk_jpeg_ctrls_setup(ctx);
+	if (ret) {
+		v4l2_err(&jpeg->v4l2_dev, "Failed to setup controls() (%d)\n",
+			 ret);
+		goto error;
+	}
+
 	mtk_jpeg_set_default_params(ctx);
 	mutex_unlock(&jpeg->lock);
 	return 0;

@@ -1033,6 +1438,7 @@ 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);

@@ -1057,6 +1463,7 @@ static int mtk_jpeg_clk_init(struct mtk_jpeg_dev *jpeg)
 	node = of_parse_phandle(jpeg->dev->of_node, "mediatek,larb", 0);
 	if (!node)
 		return -EINVAL;
+
 	pdev = of_find_device_by_node(node);
 	if (WARN_ON(!pdev)) {
 		of_node_put(node);

@@ -1066,19 +1473,24 @@ 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);
+	if (jpeg->mode == MTK_JPEG_ENC) {
+		jpeg->clk_jpeg = devm_clk_get(jpeg->dev, "jpgenc");
+		return PTR_ERR_OR_ZERO(jpeg->clk_jpeg);
+	}
+
+	jpeg->clk_jpeg = devm_clk_get(jpeg->dev, "jpgdec");
+	if (IS_ERR(jpeg->clk_jpeg))
+		return PTR_ERR(jpeg->clk_jpeg);
 
-	jpeg->clk_jdec_smi = devm_clk_get(jpeg->dev, "jpgdec-smi");
-	return PTR_ERR_OR_ZERO(jpeg->clk_jdec_smi);
+	jpeg->clk_jpeg_smi = devm_clk_get(jpeg->dev, "jpgdec-smi");
+	return PTR_ERR_OR_ZERO(jpeg->clk_jpeg_smi);
 }
 
 static int mtk_jpeg_probe(struct platform_device *pdev)
 {
 	struct mtk_jpeg_dev *jpeg;
 	struct resource *res;
-	int dec_irq;
+	int jpeg_irq;
 	int ret;
 
 	jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL);

@@ -1088,28 +1500,26 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 	mutex_init(&jpeg->lock);
 	spin_lock_init(&jpeg->hw_lock);
 	jpeg->dev = &pdev->dev;
+	jpeg->mode = (enum mtk_jpeg_mode)of_device_get_match_data(jpeg->dev);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	jpeg->dec_reg_base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(jpeg->dec_reg_base)) {
-		ret = PTR_ERR(jpeg->dec_reg_base);
+	jpeg->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(jpeg->reg_base)) {
+		ret = PTR_ERR(jpeg->reg_base);
 		return ret;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	dec_irq = platform_get_irq(pdev, 0);
-	if (!res || dec_irq < 0) {
-		dev_err(&pdev->dev, "Failed to get dec_irq %d.\n", dec_irq);
-		ret = -EINVAL;
-		return ret;
+	jpeg_irq = platform_get_irq(pdev, 0);
+	if (jpeg_irq < 0) {
+		dev_err(&pdev->dev, "Failed to get jpeg_irq %d.\n", jpeg_irq);
+		return jpeg_irq;
 	}
 
-	ret = devm_request_irq(&pdev->dev, dec_irq, mtk_jpeg_dec_irq, 0,
+	ret = devm_request_irq(&pdev->dev, jpeg_irq, mtk_jpeg_irq, 0,
 			       pdev->name, jpeg);
 	if (ret) {
-		dev_err(&pdev->dev, "Failed to request dec_irq %d (%d)\n",
-			dec_irq, ret);
-		ret = -EINVAL;
+		dev_err(&pdev->dev, "Failed to request jpeg_irq %d (%d)\n",
+			jpeg_irq, ret);
 		goto err_req_irq;
 	}
 

@@ -1133,33 +1543,35 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 		goto err_m2m_init;
 	}
 
-	jpeg->dec_vdev = video_device_alloc();
-	if (!jpeg->dec_vdev) {
+	jpeg->vfd_jpeg = video_device_alloc();
+	if (!jpeg->vfd_jpeg) {
 		ret = -ENOMEM;
-		goto err_dec_vdev_alloc;
+		goto err_vfd_jpeg_alloc;
 	}
-	snprintf(jpeg->dec_vdev->name, sizeof(jpeg->dec_vdev->name),
-		 "%s-dec", MTK_JPEG_NAME);
-	jpeg->dec_vdev->fops = &mtk_jpeg_fops;
-	jpeg->dec_vdev->ioctl_ops = &mtk_jpeg_ioctl_ops;
-	jpeg->dec_vdev->minor = -1;
-	jpeg->dec_vdev->release = video_device_release;
-	jpeg->dec_vdev->lock = &jpeg->lock;
-	jpeg->dec_vdev->v4l2_dev = &jpeg->v4l2_dev;
-	jpeg->dec_vdev->vfl_dir = VFL_DIR_M2M;
-	jpeg->dec_vdev->device_caps = V4L2_CAP_STREAMING |
+	snprintf(jpeg->vfd_jpeg->name, sizeof(jpeg->vfd_jpeg->name),
+		 "%s-%s", MTK_JPEG_NAME,
+		 jpeg->mode == MTK_JPEG_ENC ? "enc" : "dec");
+	jpeg->vfd_jpeg->fops = &mtk_jpeg_fops;
+	jpeg->vfd_jpeg->ioctl_ops = &mtk_jpeg_ioctl_ops;
+	jpeg->vfd_jpeg->minor = -1;
+	jpeg->vfd_jpeg->release = video_device_release;
+	jpeg->vfd_jpeg->lock = &jpeg->lock;
+	jpeg->vfd_jpeg->v4l2_dev = &jpeg->v4l2_dev;
+	jpeg->vfd_jpeg->vfl_dir = VFL_DIR_M2M;
+	jpeg->vfd_jpeg->device_caps = V4L2_CAP_STREAMING |
 				      V4L2_CAP_VIDEO_M2M_MPLANE;
 
-	ret = video_register_device(jpeg->dec_vdev, VFL_TYPE_GRABBER, 3);
+	ret = video_register_device(jpeg->vfd_jpeg, VFL_TYPE_GRABBER, -1);
 	if (ret) {
 		v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");
-		goto err_dec_vdev_register;
+		goto err_vfd_jpeg_register;
 	}
 
-	video_set_drvdata(jpeg->dec_vdev, jpeg);
+	video_set_drvdata(jpeg->vfd_jpeg, jpeg);
 	v4l2_info(&jpeg->v4l2_dev,
-		  "decoder device registered as /dev/video%d (%d,%d)\n",
-		  jpeg->dec_vdev->num, VIDEO_MAJOR, jpeg->dec_vdev->minor);
+		  "jpeg device %d registered as /dev/video%d (%d,%d)\n",
+		  jpeg->mode, jpeg->vfd_jpeg->num, VIDEO_MAJOR,
+		  jpeg->vfd_jpeg->minor);
 
 	platform_set_drvdata(pdev, jpeg);
 

@@ -1167,10 +1579,10 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_dec_vdev_register:
-	video_device_release(jpeg->dec_vdev);
+err_vfd_jpeg_register:
+	video_device_release(jpeg->vfd_jpeg);
 
-err_dec_vdev_alloc:
+err_vfd_jpeg_alloc:
 	v4l2_m2m_release(jpeg->m2m_dev);
 
 err_m2m_init:

@@ -1190,8 +1602,8 @@ static int mtk_jpeg_remove(struct platform_device *pdev)
 	struct mtk_jpeg_dev *jpeg = platform_get_drvdata(pdev);
 
 	pm_runtime_disable(&pdev->dev);
-	video_unregister_device(jpeg->dec_vdev);
-	video_device_release(jpeg->dec_vdev);
+	video_unregister_device(jpeg->vfd_jpeg);
+	video_device_release(jpeg->vfd_jpeg);
 	v4l2_m2m_release(jpeg->m2m_dev);
 	v4l2_device_unregister(&jpeg->v4l2_dev);
 

@@ -1202,7 +1614,11 @@ static __maybe_unused int mtk_jpeg_pm_suspend(struct device *dev)
 {
 	struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
 
-	mtk_jpeg_dec_reset(jpeg->dec_reg_base);
+	if (jpeg->mode == MTK_JPEG_ENC)
+		mtk_jpeg_enc_reset(jpeg->reg_base);
+	else
+		mtk_jpeg_dec_reset(jpeg->reg_base);
+
 	mtk_jpeg_clk_off(jpeg);
 
 	return 0;

@@ -1213,7 +1629,10 @@ 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);
-	mtk_jpeg_dec_reset(jpeg->dec_reg_base);
+	if (jpeg->mode == MTK_JPEG_ENC)
+		mtk_jpeg_enc_reset(jpeg->reg_base);
+	else
+		mtk_jpeg_dec_reset(jpeg->reg_base);
 
 	return 0;
 }

@@ -1249,11 +1668,15 @@ static const struct dev_pm_ops mtk_jpeg_pm_ops = {
 static const struct of_device_id mtk_jpeg_match[] = {
 	{
 		.compatible = "mediatek,mt8173-jpgdec",
-		.data       = NULL,
+		.data       = (void *)MTK_JPEG_DEC,
 	},
 	{
 		.compatible = "mediatek,mt2701-jpgdec",
-		.data       = NULL,
+		.data       = (void *)MTK_JPEG_DEC,
+	},
+	{
+		.compatible = "mediatek,mtk-jpgenc",
+		.data       = (void *)MTK_JPEG_ENC,
 	},
 	{},
 };