diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu381-regs.h b/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu381-regs.h
index 11b545e9e..b3a8857c8 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu381-regs.h
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu381-regs.h
@@ -265,6 +265,12 @@ struct rkvdec_vdpu381_regs_common {
 	u32 timeout_threshold;
 } __packed;
 
+/* experimental vp9, still developing. might not work with my luck*/
+struct rkvdec_vdpu381_vp9_set {
+	u32 vp9_cprheader_offset : 16;
+	u32 reserved			 : 16;
+}__packed;
+
 /* base: OFFSET_COMMON_ADDR_REGS */
 struct rkvdec_vdpu381_regs_common_addr {
 	u32 rlc_base;
@@ -378,6 +384,258 @@ struct rkvdec_vdpu381_regs_hevc_params {
 	} reg112;
 
 } __packed;
+/* base: OFFSET_CODEC_PARAMS_REGS */
+struct rkvdec_vdpu381_regs_vp9_params {
+	struct rkvdec_vdpu381_vp9_set reg064; // 0x0100
+	u32 cur_top_poc; // 0x0104
+	u32 reserved0 ; // 0x0108
+
+	struct rkvdec_vdpu381_vp9_segid_grp {
+		u32 vp9_segid_abs_delta 		 : 1;
+		u32 vp9_segid_frame_qp_delta_en  : 1;
+		u32 vp9_segid_frame_qp_delta     : 9;
+		u32 vp9_segid_frame_loopfilter_value_en : 1;
+		u32 vp9_segid_frame_loopfilter_value : 7;
+		u32 vp9_segid_referinfo_en : 1;
+		u32 vp9_segid_referinfo : 2;
+		u32 vp9_segid_frame_skip_en : 1;
+		u32 reserved : 9;
+	} reg67_74[8]; // 0x010c - 0x0128
+
+	struct rkvdec_vdpu381_vp9_info_lastframe {
+		u32 vp9_mode_deltas_lastframe : 14;
+		u32 reserved0 : 2;
+		u32 segmentation_enable_lstframe : 1;
+		u32 vp9_last_showframe : 1;
+		u32 vp9_last_intra_only : 1;
+		u32 vp9_last_widhheight_eqcur :1;
+		u32 vp9_color_sapce_lastkeyframe : 3;
+		u32 reserved1 : 9;
+	} reg75; // 0x012c
+
+
+	struct rkvdec_vdpu381_vp9_cprheader_config {
+		u32 vp9_tx_mode : 3;
+		u32 vp9_frame_reference_mode : 2;
+		u32 reserved : 27;
+
+	} reg76; // 0x0130
+
+	struct rkvdec_vdpu381_vp9_intercmd_num {
+		u32 vp9_intercmd_num : 24;
+		u32 reserved : 8;
+
+	} reg77; // 0x0134
+
+	u32 reg78_vp9_stream_size; // 0x0138
+
+	struct rkvdec_vdpu381_vp9_lastf_y_hor_virstride {
+		u32 vp9_lastfy_hor_virstride : 16;
+		u32 reserved : 16;
+
+	} reg79; // 0x013c
+
+	struct rkvdec_vdpu381_vp9_lastf_uv_hor_virstride {
+		u32 vp9_lastfuv_hor_virstride : 16;
+		u32 reserved : 16;
+
+	} reg80 ; // 0x0140
+
+	struct rkvdec_vdpu381_vp9_goldenf_y_hor_virstride {
+		u32 vp9_goldenfy_hor_virstride : 16;
+		u32 reserved : 16;
+		
+	} reg81; // 0x0144
+
+	struct rkvdec_vdpu381_vp9_golden_uv_hot_virstride {
+		u32 vp9_goldenuv_hor_virstride : 16;
+		u32 reserved : 16;
+
+	} reg82; // 0x0148
+
+	struct rkvdec_vdpu381_vp9_altreff_y_hor_virstride {
+		u32 vp9_altreffy_hor_virstride :16;
+		u32 reserved : 16;
+
+	} reg83; // 0x014c
+
+	struct rkvdec_vdpu381_vp9_altreff_uv_hor_virstride {
+		u32 vp9_altreff_uv_hor_virstride : 16;
+		u32 reserved : 16;
+
+	} reg84; // 0x0150
+
+	struct rkvdec_vdpu381_vp9_lastf_y_virstride {
+		u32 vp9_lastfy_virstride : 28;
+		u32 reserved : 4;		
+
+	} reg85; // 0x0154
+
+	struct rkvdec_vdpu381_vp9_golden_y_virstride {
+		u32 vp9_goldeny_virstride : 28;
+		u32 reserved : 4;
+
+	} reg86; // 0x0158
+
+	struct rkvdec_vdpu381_vp9_altref_y_virstride {
+		u32 vp9_altrefy_virstride : 28;
+		u32 reserved : 4;
+
+	} reg87; // 0x015c
+
+	struct rkvdec_vdpu381_vp9_lref_hor_scale {
+		u32 vp9_lref_hor_scale : 16;
+		u32 reserved : 16;
+
+	} reg88; // 0x0160
+
+	struct rkvdec_vdpu381_vp9_lref_ver_scale {
+		u32 vp9_lref_ver_scale : 16;
+		u32 reserved : 16;
+
+	} reg89; // 0x0164
+
+	struct rkvdec_vdpu381_vp9_gref_hor_scale {
+		u32 vp9_gref_hor_scale : 16;
+		u32 reserved : 16;
+
+	} reg90; // 0x0168
+
+	struct rkvdec_vdpu381_vp9_gref_ver_scale {
+		u32 vp9_gref_ver_scale :16;
+		u32 reserved : 16;
+
+	} reg91; // 0x016c
+
+	struct rkvdec_vdpu381_vp9_aref_hor_scale {
+		u32 vp9_aref_hor_scale : 16;
+		u32 reserved : 16;
+
+	} reg92; // 0x0170
+
+	struct rkvdec_vdpu381_vp9_aref_ver_scale {
+		u32 vp9_aref_ver_scale : 16;
+		u32 reserved : 16;
+
+	} reg93; // 0x0174
+
+	struct rkvdec_vdpu381_vp9_ref_deltas_lastframe {
+		u32 vp9_ref_deltas_lastframe : 28;
+		u32 reserved : 4;
+
+	} reg94; // 0x0178
+
+	u32 reg95_vp9_last_poc; // 0x017c
+
+	u32 reg96_vp9_golden_poc; // 0x0180
+    
+	u32 reg97_vp9_altref_poc; // 0x0184
+
+	u32 reg98_vp9_col_ref_poc; // 0x0188
+
+	struct rkvdec_vdpu381_vp9_prob_ref_poc {
+		u32 vp9_prob_ref_poc : 16;
+		u32 reserved : 16;
+
+	} reg99; // 0x018c
+
+	struct rkvdec_vdpu381_vp9_segid_ref_poc {
+		u32 vp9_segid_ref_poc : 16;
+		u32 reserved : 16;
+
+	} reg100; // 0x0190
+
+	u32 reserved1[2]; // 0x0194 - 0x0198 [2 bits [101,102]]
+
+	struct rkvdec_vdpu381_vp9_prob_en {
+		u32 reserved : 20;
+		u32 vp9_prob_update_en : 1;
+		u32 vp9_refresh_en : 1;
+		u32 vp9_prob_save_en : 1;
+		u32 vp9_intra_only_flag : 1;
+		u32 vp9_txfmmode_rfsh_en : 1;
+		u32 vp9_ref_mode_rfsh_en : 1;
+		u32 vp9_single_ref_rfsh_en : 1;
+		u32 vp9_comp_ref_rfsh_en : 1;
+		u32 vp9_interp_filter_switch_en : 1;
+		u32 vp9_allow_high_precision_mv : 1;
+		u32 vp9_last_key_frame_flag : 1;
+		u32 vp9_inter_coef_rfsh_flag :1;
+
+	} reg103; // 0x019c
+
+	u32 reserved2; // 0x01a0 [1 bit [104]]
+
+	struct rkvdec_vdpu381_vp9_cnt_upd_en_avs2_headlen {
+		u32 avs2_head_len : 4;
+		u32 vp9count_update_en : 1;
+		u32 reserved : 27;
+
+	} reg105; // 0x01a4
+
+	struct rkvdec_vdpu381_vp9_frame_width_last {
+		u32 vp9_framewidth_last : 16;
+		u32 reserved : 16;
+
+	} reg106; // 0x01a8
+
+	struct rkvdec_vdpu381_vp9_frame_height_last {
+		u32 vp9_frameheight_last: 16;
+		u32 reserved : 16;
+
+	} reg107; // 0x01ac
+
+	struct rkvdec_vdpu381_vp9_frame_width_golden {
+		u32 vp9_framewidth_golden : 16;
+		u32 reserved : 16;
+
+	} reg108; // 0x01b0
+
+	struct rkvdec_vdpu381_vp9_frame_height_golden {
+		u32 vp9_frameheight_golden : 16;
+		u32 reserved : 16;
+
+	} reg109; // 0x01b4
+
+	struct rkvdec_vdpu381_vp9_frame_width_altref {
+		u32 vp9_framewidth_altref : 16;
+		u32 reserved : 16;
+
+	} reg110; // 0x01b8
+
+	struct rkvdec_vdpu381_vp9_frame_height_altref {
+		u32 vp9_frameheight_altref : 16;
+		u32 reserved : 16;
+
+	} reg111; // 0x01bc
+
+	u32 reserved3; // 0x01c0 [1 bit [reg112]]
+
+} __packed;
+
+struct rkvdec_vdpu381_regs_vp9_addr {
+
+	u32 vp9_delta_prob_base; // 0x0280 [reg160]
+	u32 reserved0; // 0x0284 [reg161]
+	u32 vp9_last_prob_base; // 0x0288 [reg162]
+	u32 reserved1; // 0x028c [reg163]
+	u32 vp9_referlast_base; // 0x0290 [reg164]
+	u32 vp9_refergolden_base; // 0x0294 [reg165]
+	u32 vp9_referalfter_base; // 0x0298 [reg166]
+	u32 vp9_count_base; // 0x029c [reg167]
+	u32 vp9_segidlast_base; // 0x02a0 [reg168]
+	u32 avp9_segidcur_base; // 0x02a4 [reg169]
+	u32 vp9_refcolmv_base; // 0x02a8 [reg170]
+	u32 vp9_intercmd_base; // 0x02ac [reg171]
+	u32 vp9_update_prob_wr_bas; // 0x02b0 [reg172]
+	u32 reserved2[7]; // 0x02b4 - 0x02cc [reg173 - reg179]
+	// testing, could see pixels but damaged[ changed below lines]
+	u32 scanlist_addr; // 0x02d0 [reg180]
+	u32 colmv_base[16]; // 0x02d4 - 0x0310 [reg181 - reg196]
+	u32 cabactbl_base;
+
+
+}__packed;
 
 /* base: OFFSET_CODEC_ADDR_REGS */
 struct rkvdec_vdpu381_regs_h26x_addr {
@@ -391,6 +649,7 @@ struct rkvdec_vdpu381_regs_h26x_addr {
 	u32 cabactbl_base;
 } __packed;
 
+
 struct rkvdec_vdpu381_regs_h26x_highpoc {
 	struct rkvdec_vdpu381_ref_poc_highbit {
 		u32 ref0_poc_highbit	: 4;
@@ -408,6 +667,23 @@ struct rkvdec_vdpu381_regs_h26x_highpoc {
 	} reg204;
 } __packed;
 
+// struct rkvdec_vdpu381_regs_vp9_highpoc {
+// 	struct rkvdec_vdpu381_ref_poc_highbit {
+// 		u32 ref0_poc_highbit	: 4;
+// 		u32 ref1_poc_highbit	: 4;
+// 		u32 ref2_poc_highbit	: 4;
+// 		u32 ref3_poc_highbit	: 4;
+// 		u32 ref4_poc_highbit	: 4;
+// 		u32 ref5_poc_highbit	: 4;
+// 		u32 ref6_poc_highbit	: 4;
+// 		u32 ref7_poc_highbit	: 4;
+// 	} reg200[4];
+// 	struct rkvdec_vdpu381_cur_poc_highbit {
+// 		u32 cur_poc_highbit	: 4;
+// 		u32 reserved		: 28;
+// 	} reg204;
+// } __packed;
+
 struct rkvdec_vdpu381_regs_h264 {
 	struct rkvdec_vdpu381_regs_common		common;
 	struct rkvdec_vdpu381_regs_h264_params		h264_param;
@@ -416,6 +692,8 @@ struct rkvdec_vdpu381_regs_h264 {
 	struct rkvdec_vdpu381_regs_h26x_highpoc		h264_highpoc;
 } __packed;
 
+
+
 struct rkvdec_vdpu381_regs_hevc {
 	struct rkvdec_vdpu381_regs_common		common;
 	struct rkvdec_vdpu381_regs_hevc_params		hevc_param;
@@ -424,4 +702,12 @@ struct rkvdec_vdpu381_regs_hevc {
 	struct rkvdec_vdpu381_regs_h26x_highpoc		hevc_highpoc;
 } __packed;
 
+struct rkvdec_vdpu381_regs_vp9 {
+	struct rkvdec_vdpu381_regs_common 			common;
+	struct rkvdec_vdpu381_regs_vp9_params		vp9_param;
+	struct rkvdec_vdpu381_regs_common_addr		common_addr;
+	struct rkvdec_vdpu381_regs_vp9_addr			vp9_addr;
+	//struct rkvdec_vdpu381_regs_h26x_highpoc		vp9_highpoc;
+}__packed;
+
 #endif /* __RKVDEC_REGS_H__ */