diff --git a/drivers/media/platform/rockchip/isp/isp_params_v2x.c b/drivers/media/platform/rockchip/isp/isp_params_v2x.c
index 5bb8043cc347..b663b0e78caa 100644
--- a/drivers/media/platform/rockchip/isp/isp_params_v2x.c
+++ b/drivers/media/platform/rockchip/isp/isp_params_v2x.c
@@ -4333,129 +4333,6 @@ unlock:
 	spin_unlock(&params_vdev->config_lock);
 }
 
-static void isp_hdrtmo_palhpa_reconfig(struct rkisp_isp_params_vdev *params_vdev, u32 lgmean)
-{
-	u16 set_lgmin, set_lgmax, palpha_0p18;
-	u32 palpha, max_palpha;
-	u32 cur_frame_id = 0;
-	u32 value = 0;
-
-	set_lgmin = params_vdev->cur_hdrtmo.set_lgmin;
-	set_lgmax = params_vdev->cur_hdrtmo.set_lgmax;
-	palpha_0p18 = params_vdev->cur_hdrtmo.palpha_0p18;
-	max_palpha = params_vdev->cur_hdrtmo.maxpalpha;
-
-	palpha = palpha_0p18 * (4 * lgmean - 3 * set_lgmin - set_lgmax) / (set_lgmax - set_lgmin);
-	palpha = min(palpha, max_palpha);
-
-	rkisp_dmarx_get_frame(params_vdev->dev, &cur_frame_id, NULL, NULL, true);
-
-	value = rkisp_read(params_vdev->dev, ISP_HDRTMO_LG_CFG0, true) & 0xfffffc00;
-	value |= palpha;
-	rkisp_write(params_vdev->dev, ISP_HDRTMO_LG_CFG0, value, true);
-
-	v4l2_dbg(5, rkisp_debug, &params_vdev->dev->v4l2_dev,
-		 "frame(%d), palpha(%d)\n", cur_frame_id, palpha);
-}
-
-static void isp_hdrtmo_lgavgmax_reconfig(struct rkisp_isp_params_vdev *params_vdev,
-					 s32 lgmean)
-{
-	u8 weight_key;
-	u16 set_lgmax;
-	s32 lgrange1 = 0, lgavgmax = 0;
-	u32 cur_frame_id, value;
-
-	set_lgmax = params_vdev->cur_hdrtmo.set_lgmax;
-	lgrange1 = params_vdev->cur_hdrtmo.set_lgrange1;
-	weight_key = params_vdev->cur_hdrtmo.set_weightkey;
-
-	if (params_vdev->cur_hdrtmo.predict.global_tmo) {
-		lgavgmax = lgmean;
-	} else {
-		lgavgmax = weight_key * set_lgmax + (256 - weight_key) * lgmean;
-		lgavgmax = min(lgavgmax / 256, lgrange1);
-	}
-
-	value = rkisp_read(params_vdev->dev, ISP_HDRTMO_LG_CFG4, true) & 0xffff0000;
-	value |= lgavgmax;
-	rkisp_write(params_vdev->dev, ISP_HDRTMO_LG_CFG4, value, true);
-
-	rkisp_dmarx_get_frame(params_vdev->dev, &cur_frame_id, NULL, NULL, true);
-
-	v4l2_dbg(5, rkisp_debug, &params_vdev->dev->v4l2_dev,
-		 "frame(%d), global_tmo(%d), lgavgmax(%d)\n",
-		 cur_frame_id, params_vdev->cur_hdrtmo.predict.global_tmo, lgavgmax);
-}
-
-static void isp_hdrtmo_lgrange1_reconfig(struct rkisp_isp_params_vdev *params_vdev,
-					 s32 lgmean)
-{
-	if (params_vdev->cur_hdrtmo.predict.global_tmo) {
-		s32 lgrange1 = 0;
-		u32 cur_frame_id, value;
-
-		lgrange1 = lgmean;
-		value = rkisp_read(params_vdev->dev, ISP_HDRTMO_LG_CFG3, true) & 0xffff;
-		value |= lgrange1 << 16;
-		rkisp_write(params_vdev->dev, ISP_HDRTMO_LG_CFG3, value, true);
-
-		rkisp_dmarx_get_frame(params_vdev->dev, &cur_frame_id, NULL, NULL, true);
-
-		v4l2_dbg(5, rkisp_debug, &params_vdev->dev->v4l2_dev,
-			 "frame(%d), global_tmo(%d), lgrange1(%d)\n",
-			 cur_frame_id, params_vdev->cur_hdrtmo.predict.global_tmo, lgrange1);
-	}
-}
-
-static u16 isp_hdrtmo_lgmean_reconfig(struct rkisp_isp_params_vdev *params_vdev)
-{
-	u16 default_lgmean = 40000;
-	u16 lgmean = default_lgmean;
-	u32 value = 0;
-	s32 cur_frame_id = 0;
-	static s32 prev_lgmean = 40000;
-
-	rkisp_dmarx_get_frame(params_vdev->dev, &cur_frame_id, NULL, NULL, true);
-	if (params_vdev->cur_hdrtmo.predict.iir < params_vdev->cur_hdrtmo.predict.iir_max) {
-		u32 ro_lgmean;
-		s32 iir = 0;
-		s32 global_tmo_strength = params_vdev->cur_hdrtmo.predict.global_tmo_strength;
-
-		value = rkisp_read(params_vdev->dev, ISP_HDRTMO_LG_RO2, true);
-		ro_lgmean = value & 0xffff;
-
-		iir = min(cur_frame_id + 1, params_vdev->cur_hdrtmo.predict.iir);
-		default_lgmean += global_tmo_strength;
-		ro_lgmean +=  global_tmo_strength;
-		if (params_vdev->cur_hdrtmo.predict.scene_stable) {
-			if (cur_frame_id == 0)
-				lgmean = default_lgmean;
-			else
-				lgmean = ((iir - 1) * prev_lgmean + ro_lgmean) / iir;
-		} else {
-			if (cur_frame_id == 0)
-				lgmean = default_lgmean;
-			else
-				lgmean = prev_lgmean;
-		}
-	}
-
-	value = rkisp_read(params_vdev->dev, ISP_HDRTMO_LG_CFG2, true) & 0xffff0000;
-	value |= lgmean;
-	rkisp_write(params_vdev->dev, ISP_HDRTMO_LG_CFG2, value, true);
-
-	prev_lgmean = lgmean;
-
-	v4l2_dbg(5, rkisp_debug, &params_vdev->dev->v4l2_dev,
-		 "frame(%d), scene_stable(%d), k_rolgmean(%d), iir(%d), lgmean(%d)\n",
-		 cur_frame_id, params_vdev->cur_hdrtmo.predict.scene_stable,
-		 params_vdev->cur_hdrtmo.predict.k_rolgmean,
-		 params_vdev->cur_hdrtmo.predict.iir, lgmean);
-
-	return lgmean;
-}
-
 static void
 rkisp_params_isr_v2x(struct rkisp_isp_params_vdev *params_vdev,
 		     u32 isp_mis)
@@ -4487,17 +4364,6 @@ rkisp_params_isr_v2x(struct rkisp_isp_params_vdev *params_vdev,
 		}
 	}
 
-	if (isp_mis & ISP2X_HDR_DONE) {
-		u16 lgmean = 0;
-
-		lgmean = isp_hdrtmo_lgmean_reconfig(params_vdev);
-		isp_hdrtmo_palhpa_reconfig(params_vdev, lgmean);
-		isp_hdrtmo_lgrange1_reconfig(params_vdev, lgmean);
-		isp_hdrtmo_lgavgmax_reconfig(params_vdev, lgmean);
-
-		writel(ISP2X_HDR_DONE, dev->base_addr + ISP_ISP_ICR);
-	}
-
 	if ((isp_mis & CIF_ISP_FRAME) && !IS_HDR_RDBK(dev->rd_mode))
 		rkisp_params_cfg_v2x(params_vdev, cur_frame_id + 1, RKISP_PARAMS_ALL);
 }
diff --git a/drivers/media/platform/rockchip/isp/rkisp.c b/drivers/media/platform/rockchip/isp/rkisp.c
index 673d05b51610..8e42e4353ae4 100644
--- a/drivers/media/platform/rockchip/isp/rkisp.c
+++ b/drivers/media/platform/rockchip/isp/rkisp.c
@@ -1225,8 +1225,6 @@ static int rkisp_config_isp(struct rkisp_device *dev)
 		    CIF_ISP_FRAME_IN;
 	if (dev->isp_ver == ISP_V20 || dev->isp_ver == ISP_V21)
 		irq_mask |= ISP2X_LSC_LUT_ERR;
-	if (dev->isp_ver == ISP_V20)
-		irq_mask |= ISP2X_HDR_DONE;
 	rkisp_write(dev, CIF_ISP_IMSC, irq_mask, true);
 
 	if ((dev->isp_ver == ISP_V20 || dev->isp_ver == ISP_V21) &&