diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index d03cca95e99b..8e9a0d9dc577 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -25,7 +25,7 @@
 #define MTK_V4L2_BENCHMARK	0
 #define WAIT_INTR_TIMEOUT_MS	1000

-/**
+/*
  * enum mtk_hw_reg_idx - MTK hw register base index
  */
 enum mtk_hw_reg_idx {
@@ -49,7 +49,7 @@ enum mtk_hw_reg_idx {
 	NUM_MAX_VCODEC_REG_BASE
 };

-/**
+/*
  * enum mtk_instance_type - The type of an MTK Vcodec instance.
  */
 enum mtk_instance_type {
@@ -74,7 +74,7 @@ enum mtk_instance_state {
 	MTK_STATE_ABORT = 4,
 };

-/**
+/*
  * enum mtk_encode_param - General encoding parameters type
  */
 enum mtk_encode_param {
@@ -92,7 +92,7 @@ enum mtk_fmt_type {
 	MTK_FMT_FRAME = 2,
 };

-/**
+/*
  * struct mtk_video_fmt - Structure used to store information about pixelformats
  */
 struct mtk_video_fmt {
@@ -102,7 +102,7 @@ struct mtk_video_fmt {
 	u32	flags;
 };

-/**
+/*
  * struct mtk_codec_framesizes - Structure used to store information about
  *							framesizes
  */
@@ -111,7 +111,7 @@ struct mtk_codec_framesizes {
 	struct	v4l2_frmsize_stepwise	stepwise;
 };

-/**
+/*
  * enum mtk_q_type - Type of queue
  */
 enum mtk_q_type {
@@ -119,7 +119,7 @@ enum mtk_q_type {
 	MTK_Q_DATA_DST = 1,
 };

-/**
+/*
  * struct mtk_q_data - Structure used to store information about queue
  */
 struct mtk_q_data {
@@ -168,7 +168,7 @@ struct mtk_enc_params {
 	unsigned int	force_intra;
 };

-/**
+/*
  * struct mtk_vcodec_clk_info - Structure used to store clock name
  */
 struct mtk_vcodec_clk_info {
@@ -176,7 +176,7 @@ struct mtk_vcodec_clk_info {
 	struct clk	*vcodec_clk;
 };

-/**
+/*
  * struct mtk_vcodec_clk - Structure used to store vcodec clock information
  */
 struct mtk_vcodec_clk {
@@ -184,7 +184,7 @@ struct mtk_vcodec_clk {
 	int	clk_num;
 };

-/**
+/*
  * struct mtk_vcodec_pm - Power management data structure
  */
 struct mtk_vcodec_pm {
@@ -255,6 +255,7 @@ struct vdec_pic_info {
  * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
  * @quantization: enum v4l2_quantization, colorspace quantization
  * @xfer_func: enum v4l2_xfer_func, colorspace transfer function
+ * @decoded_frame_cnt: number of decoded frames
  * @lock: protect variables accessed by V4L2 threads and worker thread such as
  *	  mtk_video_dec_buf.
  */
@@ -310,7 +311,7 @@ enum mtk_chip {
  * @chip: chip this encoder is compatible with
  *
  * @uses_ext: whether the encoder uses the extended firmware messaging format
- * @min_birate: minimum supported encoding bitrate
+ * @min_bitrate: minimum supported encoding bitrate
  * @max_bitrate: maximum supported encoding bitrate
  * @capture_formats: array of supported capture formats
  * @num_capture_formats: number of entries in capture_formats
@@ -347,10 +348,12 @@ struct mtk_vcodec_enc_pdata {
  * @curr_ctx: The context that is waiting for codec hardware
  *
  * @reg_base: Mapped address of MTK Vcodec registers.
+ * @venc_pdata: encoder IC-specific data
  *
  * @fw_handler: used to communicate with the firmware.
  * @id_counter: used to identify current opened instance
  *
+ * @decode_workqueue: decode work queue
  * @encode_workqueue: encode work queue
  *
  * @int_cond: used to identify interrupt condition happen
diff --git a/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h b/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
index 47a1c1c0fd04..68e8d5cb16d7 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
+++ b/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
@@ -7,7 +7,7 @@
 #ifndef _VDEC_IPI_MSG_H_
 #define _VDEC_IPI_MSG_H_

-/**
+/*
  * enum vdec_ipi_msgid - message id between AP and VPU
  * @AP_IPIMSG_XXX	: AP to VPU cmd message id
  * @VPU_IPIMSG_XXX_ACK	: VPU ack AP cmd message id
diff --git a/drivers/media/platform/mtk-vcodec/venc_ipi_msg.h b/drivers/media/platform/mtk-vcodec/venc_ipi_msg.h
index 5f53d4255c36..587a2cf15b76 100644
--- a/drivers/media/platform/mtk-vcodec/venc_ipi_msg.h
+++ b/drivers/media/platform/mtk-vcodec/venc_ipi_msg.h
@@ -12,7 +12,7 @@
 #define AP_IPIMSG_VENC_BASE 0xC000
 #define VPU_IPIMSG_VENC_BASE 0xD000

-/**
+/*
  * enum venc_ipi_msg_id - message id between AP and VPU
  * (ipi stands for inter-processor interrupt)
  * @AP_IPIMSG_ENC_XXX:		AP to VPU cmd message id
@@ -111,7 +111,7 @@ struct venc_ap_ipi_msg_deinit {
 	uint32_t vpu_inst_addr;
 };

-/**
+/*
  * enum venc_ipi_msg_status - VPU ack AP cmd status
  */
 enum venc_ipi_msg_status {
