diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
index 928179354c24..3f63abbf289e 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
@@ -388,6 +388,10 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 		}
 	}
 
+	atomic_set(&dev->dec_active_cnt, 0);
+	memset(dev->vdec_racing_info, 0, sizeof(dev->vdec_racing_info));
+	mutex_init(&dev->dec_racing_info_mutex);
+
 	ret = video_register_device(vfd_dec, VFL_TYPE_VIDEO, -1);
 	if (ret) {
 		mtk_v4l2_err("Failed to register video device");
diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.c
index d69faa463d04..4305e4eb9900 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_pm.c
@@ -144,6 +144,34 @@ static void mtk_vcodec_dec_disable_irq(struct mtk_vcodec_dev *vdec_dev, int hw_i
 	}
 }
 
+static void mtk_vcodec_load_racing_info(struct mtk_vcodec_ctx *ctx)
+{
+	void __iomem *vdec_racing_addr;
+	int j;
+
+	mutex_lock(&ctx->dev->dec_racing_info_mutex);
+	if (atomic_inc_return(&ctx->dev->dec_active_cnt) == 1) {
+		vdec_racing_addr = ctx->dev->reg_base[VDEC_MISC] + 0x100;
+		for (j = 0; j < 132; j++)
+			writel(ctx->dev->vdec_racing_info[j], vdec_racing_addr + j * 4);
+	}
+	mutex_unlock(&ctx->dev->dec_racing_info_mutex);
+}
+
+static void mtk_vcodec_record_racing_info(struct mtk_vcodec_ctx *ctx)
+{
+	void __iomem *vdec_racing_addr;
+	int j;
+
+	mutex_lock(&ctx->dev->dec_racing_info_mutex);
+	if (atomic_dec_and_test(&ctx->dev->dec_active_cnt)) {
+		vdec_racing_addr = ctx->dev->reg_base[VDEC_MISC] + 0x100;
+		for (j = 0; j < 132; j++)
+			ctx->dev->vdec_racing_info[j] = readl(vdec_racing_addr + j * 4);
+	}
+	mutex_unlock(&ctx->dev->dec_racing_info_mutex);
+}
+
 static struct mtk_vcodec_pm *mtk_vcodec_dec_get_pm(struct mtk_vcodec_dev *vdec_dev,
 						   int hw_idx)
 {
@@ -214,11 +242,17 @@ void mtk_vcodec_dec_enable_hardware(struct mtk_vcodec_ctx *ctx, int hw_idx)
 	mtk_vcodec_dec_child_dev_on(ctx->dev, hw_idx);
 
 	mtk_vcodec_dec_enable_irq(ctx->dev, hw_idx);
+
+	if (IS_VDEC_INNER_RACING(ctx->dev->dec_capability))
+		mtk_vcodec_load_racing_info(ctx);
 }
 EXPORT_SYMBOL_GPL(mtk_vcodec_dec_enable_hardware);
 
 void mtk_vcodec_dec_disable_hardware(struct mtk_vcodec_ctx *ctx, int hw_idx)
 {
+	if (IS_VDEC_INNER_RACING(ctx->dev->dec_capability))
+		mtk_vcodec_record_racing_info(ctx);
+
 	mtk_vcodec_dec_disable_irq(ctx->dev, hw_idx);
 
 	mtk_vcodec_dec_child_dev_off(ctx->dev, hw_idx);
diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h
index 0e3db8ccb398..eeee880eccdd 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h
@@ -28,6 +28,7 @@
 #define MTK_V4L2_BENCHMARK	0
 #define WAIT_INTR_TIMEOUT_MS	1000
 #define IS_VDEC_LAT_ARCH(hw_arch) ((hw_arch) >= MTK_VDEC_LAT_SINGLE_CORE)
+#define IS_VDEC_INNER_RACING(capability) ((capability) & MTK_VCODEC_INNER_RACING)
 
 /*
  * enum mtk_hw_reg_idx - MTK hw register base index
@@ -357,6 +358,7 @@ enum mtk_vdec_format_types {
 	MTK_VDEC_FORMAT_H264_SLICE = 0x100,
 	MTK_VDEC_FORMAT_VP8_FRAME = 0x200,
 	MTK_VDEC_FORMAT_VP9_FRAME = 0x400,
+	MTK_VCODEC_INNER_RACING = 0x20000,
 };
 
 /**
@@ -478,6 +480,10 @@ struct mtk_vcodec_enc_pdata {
  * @subdev_dev: subdev hardware device
  * @subdev_prob_done: check whether all used hw device is prob done
  * @subdev_bitmap: used to record hardware is ready or not
+ *
+ * @dec_active_cnt: used to mark whether need to record register value
+ * @vdec_racing_info: record register value
+ * @dec_racing_info_mutex: mutex lock used for inner racing mode
  */
 struct mtk_vcodec_dev {
 	struct v4l2_device v4l2_dev;
@@ -523,6 +529,11 @@ struct mtk_vcodec_dev {
 	void *subdev_dev[MTK_VDEC_HW_MAX];
 	int (*subdev_prob_done)(struct mtk_vcodec_dev *vdec_dev);
 	DECLARE_BITMAP(subdev_bitmap, MTK_VDEC_HW_MAX);
+
+	atomic_t dec_active_cnt;
+	u32 vdec_racing_info[132];
+	/* Protects access to vdec_racing_info data */
+	struct mutex dec_racing_info_mutex;
 };
 
 static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh)
diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c
index 784d01f8bd50..4cc92700692b 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c
@@ -633,6 +633,17 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 		goto err_scp_decode;
 	}
 
+	share_info->trans_end = inst->ctx->msg_queue.wdma_addr.dma_addr +
+		inst->vsi->wdma_end_addr_offset;
+	share_info->trans_start = inst->ctx->msg_queue.wdma_wptr_addr;
+	share_info->nal_info = inst->vsi->dec.nal_info;
+
+	if (IS_VDEC_INNER_RACING(inst->ctx->dev->dec_capability)) {
+		memcpy(&share_info->h264_slice_params, &inst->vsi->h264_slice_params,
+		       sizeof(share_info->h264_slice_params));
+		vdec_msg_queue_qbuf(&inst->ctx->dev->msg_queue_core_ctx, lat_buf);
+	}
+
 	/* wait decoder done interrupt */
 	timeout = mtk_vcodec_wait_for_done_ctx(inst->ctx, MTK_INST_IRQ_RECEIVED,
 					       WAIT_INTR_TIMEOUT_MS, MTK_VDEC_LAT0);
@@ -646,18 +657,22 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 
 	share_info->trans_end = inst->ctx->msg_queue.wdma_addr.dma_addr +
 		inst->vsi->wdma_end_addr_offset;
-	share_info->trans_start = inst->ctx->msg_queue.wdma_wptr_addr;
-	share_info->nal_info = inst->vsi->dec.nal_info;
 	vdec_msg_queue_update_ube_wptr(&lat_buf->ctx->msg_queue, share_info->trans_end);
 
-	memcpy(&share_info->h264_slice_params, &inst->vsi->h264_slice_params,
-	       sizeof(share_info->h264_slice_params));
-	vdec_msg_queue_qbuf(&inst->ctx->dev->msg_queue_core_ctx, lat_buf);
+	if (!IS_VDEC_INNER_RACING(inst->ctx->dev->dec_capability)) {
+		memcpy(&share_info->h264_slice_params, &inst->vsi->h264_slice_params,
+		       sizeof(share_info->h264_slice_params));
+		vdec_msg_queue_qbuf(&inst->ctx->dev->msg_queue_core_ctx, lat_buf);
+	}
+	mtk_vcodec_debug(inst, "dec num: %d lat crc: 0x%x 0x%x 0x%x", inst->slice_dec_num,
+			 inst->vsi->dec.crc[0], inst->vsi->dec.crc[1], inst->vsi->dec.crc[2]);
 
 	inst->slice_dec_num++;
 	return 0;
 
 err_scp_decode:
+	if (!IS_VDEC_INNER_RACING(inst->ctx->dev->dec_capability))
+		vdec_msg_queue_qbuf(&inst->ctx->msg_queue.lat_ctx, lat_buf);
 err_free_fb_out:
 	vdec_msg_queue_qbuf(&inst->ctx->msg_queue.lat_ctx, lat_buf);
 	mtk_vcodec_err(inst, "slice dec number: %d err: %d", inst->slice_dec_num, err);