Received-SPF: pass (google.com: domain of linux-kernel+bounces-156172-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161;
From: Yuji Ishikawa <yuji2.ishikawa@toshiba.co.jp>
To: Hans Verkuil <hverkuil@xs4all.nl>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh@kernel.org>,
        Krzysztof Kozlowski <krzk+dt@kernel.org>,
        Conor Dooley <conor+dt@kernel.org>,
        "Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
        Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>,
        Yuji Ishikawa <yuji2.ishikawa@toshiba.co.jp>
Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v10 4/6] media: platform: visconti: add streaming interface for ISP parameters and status
Date: Wed, 24 Apr 2024 11:42:13 +0900
Message-Id: <20240424024215.1624299-5-yuji2.ishikawa@toshiba.co.jp>
In-Reply-To: <20240424024215.1624299-1-yuji2.ishikawa@toshiba.co.jp>
References: <20240424024215.1624299-1-yuji2.ishikawa@toshiba.co.jp>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

Add support to Image Signal Processors of Visconti's Video Input Interface.
This patch adds two streaming interfaces;
one for passing parameters to the signal processor,
the other for receiving status.

Signed-off-by: Yuji Ishikawa <yuji2.ishikawa@toshiba.co.jp>
---
Changelog v2:
- Resend v1 because a patch exceeds size limit.

Changelog v3:
- Adapted to media control framework
- Introduced ISP subdevice, capture device
- Remove private IOCTLs and add vendor specific V4L2 controls
- Change function name avoiding camelcase and uppercase letters

Changelog v4:
- Split patches because the v3 patch exceeds size limit
- Stop using ID number to identify driver instance:
  - Use dynamically allocated structure to hold HW specific context,
    instead of static one.
  - Call HW layer functions with the context structure instead of ID number

Changelog v5:
- no change

Changelog v6:
- remove unused macros
- removed hwd_ and HWD_ prefix
- update source code documentation
- Suggestion from Hans Verkuil
  - pointer to userland memory is removed from uAPI arguments
    - style of structure is now "nested" instead of "chained by pointer";
  - use div64_u64 for 64bit division
  - vendor specific controls support TRY_EXT_CTRLS
  - add READ_ONLY flag to GET_CALIBRATION_STATUS control and similar ones
  - human friendry control names for vendor specific controls
  - add initial value to each vendor specific control
  - GET_LAST_CAPTURE_STATUS control is updated asyncnously from workqueue
  - remove EXECUTE_ON_WRITE flag of vendor specific control
  - uAPI: return value of GET_CALIBRATION_STATUS follows common rules of error codes
  - applied v4l2-compliance
- Suggestion from Sakari Ailus
  - use div64_u64 for 64bit division
  - update copyright's year
  - remove redandunt cast
  - use bool instead of HWD_VIIF_ENABLE/DISABLE
  - simplify comparison to 0
  - simplify statements with trigram operator
  - remove redundant local variables
  - use general integer types instead of u32/s32
- Suggestion from Laurent Pinchart
  - moved VIIF driver to driver/platform/toshiba/visconti
  - change register access: struct-style to macro-style
  - remove unused type definitions
  - define enums instead of successive macro constants
  - remove redundant parenthesis of macro constant
  - embed struct hwd_res into struct viif_device
  - use xxx_dma instead of xxx_paddr for variable names of IOVA
  - literal value: just 0 instead of 0x0
  - use literal 1 or 0 instead of HWD_VIIF_ENABLE, DISABLE for register access
  - use true or false instead of HWD_VIIF_ENABLE, DISABLE for function calls
  - uAPI: return value of GET_CALIBRATION_STATUS follows common rules of error codes

Changelog v7:
- remove unused variables
- split long statements which have multiple logical-OR and trigram operators

Changelog v8:
- define constant V4L2_CTRL_TYPE_VISCONTI_ISP for datatype
  of Visconti specific controls
- Suggestion from Hans Verkuil
  - remove pr_info()
  - use pm_runtime_get_if_in_use() to get power status

Changelog v9:
- fix warning for cast between ptr and dma_addr_t

Changelog v10:
- use parameter buffer instead of vendor specific compound controls
  - add viif_params interface for passing ISP parameters
  - add viif_stats interface for passing ISP status
- remove parameter validation routine; moved to userland library

 .../media/platform/toshiba/visconti/Makefile  |    2 +-
 .../media/platform/toshiba/visconti/viif.c    |   28 +-
 .../platform/toshiba/visconti/viif_isp.c      |    7 +
 .../platform/toshiba/visconti/viif_params.c   | 2026 +++++++++++++++++
 .../platform/toshiba/visconti/viif_params.h   |   19 +
 .../platform/toshiba/visconti/viif_stats.c    |  334 +++
 .../platform/toshiba/visconti/viif_stats.h    |   14 +
 7 files changed, 2427 insertions(+), 3 deletions(-)
 create mode 100644 drivers/media/platform/toshiba/visconti/viif_params.c
 create mode 100644 drivers/media/platform/toshiba/visconti/viif_params.h
 create mode 100644 drivers/media/platform/toshiba/visconti/viif_stats.c
 create mode 100644 drivers/media/platform/toshiba/visconti/viif_stats.h

diff --git a/drivers/media/platform/toshiba/visconti/Makefile b/drivers/media/platform/toshiba/visconti/Makefile
index 5f2f9199c7..8afe8a3fdd 100644
--- a/drivers/media/platform/toshiba/visconti/Makefile
+++ b/drivers/media/platform/toshiba/visconti/Makefile
@@ -3,6 +3,6 @@
 # Makefile for the Visconti video input device driver
 #
 
-visconti-viif-objs = viif.o viif_capture.o viif_isp.o viif_csi2rx.o viif_common.o
+visconti-viif-objs = viif.o viif_capture.o viif_isp.o viif_csi2rx.o viif_common.o viif_params.o viif_stats.o
 
 obj-$(CONFIG_VIDEO_VISCONTI_VIIF) += visconti-viif.o
diff --git a/drivers/media/platform/toshiba/visconti/viif.c b/drivers/media/platform/toshiba/visconti/viif.c
index 10a67730aa..a7e818c929 100644
--- a/drivers/media/platform/toshiba/visconti/viif.c
+++ b/drivers/media/platform/toshiba/visconti/viif.c
@@ -19,6 +19,8 @@
 #include "viif.h"
 #include "viif_capture.h"
 #include "viif_csi2rx.h"
+#include "viif_params.h"
+#include "viif_stats.h"
 #include "viif_common.h"
 #include "viif_isp.h"
 #include "viif_regs.h"
@@ -177,6 +179,8 @@ static void viif_vsync_irq_handler_w_isp(struct viif_device *viif_dev)
 
 	/* Delayed Vsync of MAIN unit */
 	if (event_main & MASK_INT_M_SYNC_LINES_DELAY_INT2) {
+		unsigned int seq0 = viif_dev->cap_dev0.sequence;
+
 		/* unmask timeout error of gamma table */
 		viif_main_status_err_set_irq_mask(viif_dev, MASK_INT_M_DELAY_INT_ERROR);
 		viif_dev->masked_gamma_path = 0;
@@ -195,6 +199,8 @@ static void viif_vsync_irq_handler_w_isp(struct viif_device *viif_dev)
 						    l2_transfer_status, ts);
 		visconti_viif_capture_switch_buffer(&viif_dev->cap_dev1, status_err,
 						    l2_transfer_status, ts);
+		visconti_viif_stats_isr(viif_dev, seq0, ts);
+		visconti_viif_params_isr(viif_dev);
 	}
 
 	/* Delayed Vsync of SUB unit */
@@ -539,16 +545,32 @@ static int visconti_viif_probe(struct platform_device *pdev)
 		goto error_isp_unregister;
 	}
 
+	ret = visconti_viif_params_register(viif_dev);
+	if (ret) {
+		dev_err_probe(dev, ret, "failed to register parameter node\n");
+		goto error_capture_unregister;
+	}
+
+	ret = visconti_viif_stats_register(viif_dev);
+	if (ret) {
+		dev_err_probe(dev, ret, "failed to register stat node\n");
+		goto error_params_unregister;
+	}
+
 	ret = visconti_viif_create_links(viif_dev);
 	if (ret)
-		goto error_capture_unregister;
+		goto error_stats_unregister;
 
 	visconti_viif_subdev_notifier_register(viif_dev);
 	if (ret)
-		goto error_capture_unregister;
+		goto error_stats_unregister;
 
 	return 0;
 
+error_stats_unregister:
+	visconti_viif_stats_unregister(viif_dev);
+error_params_unregister:
+	visconti_viif_params_unregister(viif_dev);
 error_capture_unregister:
 	visconti_viif_capture_unregister(viif_dev);
 error_isp_unregister:
@@ -573,6 +595,8 @@ static int visconti_viif_remove(struct platform_device *pdev)
 	v4l2_async_nf_unregister(&viif_dev->notifier);
 	v4l2_async_nf_cleanup(&viif_dev->notifier);
 	visconti_viif_capture_unregister(viif_dev);
+	visconti_viif_params_unregister(viif_dev);
+	visconti_viif_stats_unregister(viif_dev);
 	visconti_viif_isp_unregister(viif_dev);
 	visconti_viif_csi2rx_unregister(viif_dev);
 	media_device_unregister(&viif_dev->media_dev);
diff --git a/drivers/media/platform/toshiba/visconti/viif_isp.c b/drivers/media/platform/toshiba/visconti/viif_isp.c
index bc0169af70..e1c54a2e27 100644
--- a/drivers/media/platform/toshiba/visconti/viif_isp.c
+++ b/drivers/media/platform/toshiba/visconti/viif_isp.c
@@ -13,6 +13,7 @@
 #include "viif.h"
 #include "viif_common.h"
 #include "viif_isp.h"
+#include "viif_params.h"
 #include "viif_regs.h"
 
 /* disable CSI2 capture at viif_mux_start() */
@@ -744,6 +745,10 @@ int visconti_viif_isp_main_set_unit(struct viif_device *viif_dev)
 	/* Enable regbuf */
 	hwd_viif_isp_set_regbuf_auto_transmission(viif_dev);
 
+	/* L2 UNDIST Enable through mode as default  */
+	ret = visconti_viif_l2_undist_through(viif_dev);
+	if (ret)
+		dev_err(viif_dev->dev, "l2_set_undist error. %d\n", ret);
 	return ret;
 }
 
@@ -797,6 +802,8 @@ static int visconti_viif_isp_s_stream(struct v4l2_subdev *sd, int enable)
 	}
 
 	/* enabling: start ISP, MUX -> start CSI2RX, sensor */
+	// prepare ISP parameters
+	visconti_viif_params_eval_queue(viif_dev);
 	// start ISP
 	viif_dev->masked_gamma_path = 0;
 	viif_mux_start(viif_dev, 0, 0);
diff --git a/drivers/media/platform/toshiba/visconti/viif_params.c b/drivers/media/platform/toshiba/visconti/viif_params.c
new file mode 100644
index 0000000000..5170d371c2
--- /dev/null
+++ b/drivers/media/platform/toshiba/visconti/viif_params.c
@@ -0,0 +1,2026 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+/* Toshiba Visconti Video Capture Support
+ *
+ * (C) Copyright 2023 TOSHIBA CORPORATION
+ * (C) Copyright 2023 Toshiba Electronic Devices & Storage Corporation
+ */
+
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-subdev.h>
+#include <media/videobuf2-vmalloc.h>
+
+#include "viif.h"
+#include "viif_csi2rx.h"
+#include "viif_isp.h"
+#include "viif_common.h"
+#include "viif_regs.h"
+#include "viif_params.h"
+
+/* ISP_L1_SET_HDRC */
+#define VIIF_L1_HDRC_RATIO_OFFSET 10U
+#define VIIF_REGBUF_ACCESS_TIME	  15360UL
+#define VIIF_L1_DELAY_W_HDRC	  31U
+
+/* V4L2_CID_VISCONTI_VIIF_ISP_L2_SET_UNDIST */
+#define VIIF_L2_UNDIST_POLY_NUM 11U
+
+/*=======================================================================*/
+/* ISP parameter configuration */
+/*=======================================================================*/
+static void viif_l1_set_input_mode(struct viif_device *viif_dev,
+				   const struct viif_l1_input_mode_config *arg)
+{
+	unsigned long irqflags;
+
+	/* values are already tested in _try*/
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	viif_capture_write(viif_dev, REG_L1_SYSM_INPUT_MODE, (u32)arg->mode);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_rgb_to_y_coef(struct viif_device *viif_dev,
+				      const struct viif_l1_rgb_to_y_coef_config *arg)
+{
+	unsigned long irqflags;
+
+	/* value is already tested in _try*/
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	viif_capture_write(viif_dev, REG_L1_SYSM_YCOEF_R, (u32)arg->coef_r);
+	viif_capture_write(viif_dev, REG_L1_SYSM_YCOEF_G, (u32)arg->coef_g);
+	viif_capture_write(viif_dev, REG_L1_SYSM_YCOEF_B, (u32)arg->coef_b);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_ag_mode(struct viif_device *viif_dev,
+				const struct viif_l1_ag_mode_config *arg)
+{
+	unsigned long irqflags;
+	u32 val;
+
+	/* value is already tested in _try*/
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	/* SYSM_AG_PARAM */
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_PARAM_A,
+			   PACK_L1_SYSM_AG_PARAM(arg->sysm_ag_grad[0], arg->sysm_ag_ofst[0]));
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_PARAM_B,
+			   PACK_L1_SYSM_AG_PARAM(arg->sysm_ag_grad[1], arg->sysm_ag_ofst[1]));
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_PARAM_C,
+			   PACK_L1_SYSM_AG_PARAM(arg->sysm_ag_grad[2], arg->sysm_ag_ofst[2]));
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_PARAM_D,
+			   PACK_L1_SYSM_AG_PARAM(arg->sysm_ag_grad[3], arg->sysm_ag_ofst[3]));
+
+	/* SYSM_AG_SEL */
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_SEL_HOBC,
+			   PACK_L1_SYSM_AG_SEL_HML(arg->sysm_ag_psel_hobc_high,
+						   arg->sysm_ag_psel_hobc_middle_led,
+						   arg->sysm_ag_psel_hobc_low));
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_SEL_ABPC,
+			   PACK_L1_SYSM_AG_SEL_HML(arg->sysm_ag_psel_abpc_high,
+						   arg->sysm_ag_psel_abpc_middle_led,
+						   arg->sysm_ag_psel_abpc_low));
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_SEL_RCNR,
+			   PACK_L1_SYSM_AG_SEL_HML(arg->sysm_ag_psel_rcnr_high,
+						   arg->sysm_ag_psel_rcnr_middle_led,
+						   arg->sysm_ag_psel_rcnr_low));
+
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_SEL_LSSC,
+			   PACK_L1_SYSM_AG_SEL_SP(arg->sysm_ag_ssel_lssc, arg->sysm_ag_psel_lssc));
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_SEL_MPRO,
+			   PACK_L1_SYSM_AG_SEL_SP(arg->sysm_ag_ssel_mpro, arg->sysm_ag_psel_mpro));
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_SEL_VPRO,
+			   PACK_L1_SYSM_AG_SEL_SP(arg->sysm_ag_ssel_vpro, arg->sysm_ag_psel_vpro));
+
+	/* SYSM_AG_CONT */
+	val = arg->sysm_ag_cont_hobc_en_middle_led ? MASK_L1_SYSM_AG_CONT_M_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_M_VAL, arg->sysm_ag_cont_hobc_test_middle_led);
+	val |= arg->sysm_ag_cont_hobc_en_high ? MASK_L1_SYSM_AG_CONT_H_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_H_VAL, arg->sysm_ag_cont_hobc_test_high);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_CONT_HOBC01_EN, val);
+
+	val = arg->sysm_ag_cont_hobc_en_low ? MASK_L1_SYSM_AG_CONT_L_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_L_VAL, arg->sysm_ag_cont_hobc_test_low);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_CONT_HOBC2_EN, val);
+
+	val = arg->sysm_ag_cont_abpc_en_middle_led ? MASK_L1_SYSM_AG_CONT_M_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_M_VAL, arg->sysm_ag_cont_abpc_test_middle_led);
+	val |= arg->sysm_ag_cont_abpc_en_high ? MASK_L1_SYSM_AG_CONT_H_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_H_VAL, arg->sysm_ag_cont_abpc_test_high);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_CONT_ABPC01_EN, val);
+
+	val = arg->sysm_ag_cont_abpc_en_low ? MASK_L1_SYSM_AG_CONT_L_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_L_VAL, arg->sysm_ag_cont_abpc_test_low);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_CONT_ABPC2_EN, val);
+
+	val = arg->sysm_ag_cont_rcnr_en_middle_led ? MASK_L1_SYSM_AG_CONT_M_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_M_VAL, arg->sysm_ag_cont_rcnr_test_middle_led);
+	val |= arg->sysm_ag_cont_rcnr_en_high ? MASK_L1_SYSM_AG_CONT_H_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_H_VAL, arg->sysm_ag_cont_rcnr_test_high);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_CONT_RCNR01_EN, val);
+
+	val = arg->sysm_ag_cont_rcnr_en_low ? MASK_L1_SYSM_AG_CONT_L_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_L_VAL, arg->sysm_ag_cont_rcnr_test_low);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_CONT_RCNR2_EN, val);
+
+	val = arg->sysm_ag_cont_lssc_en ? MASK_L1_SYSM_AG_CONT_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_VAL, arg->sysm_ag_cont_lssc_test);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_CONT_LSSC_EN, val);
+
+	val = arg->sysm_ag_cont_mpro_en ? MASK_L1_SYSM_AG_CONT_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_VAL, arg->sysm_ag_cont_mpro_test);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_CONT_MPRO_EN, val);
+
+	val = arg->sysm_ag_cont_vpro_en ? MASK_L1_SYSM_AG_CONT_EN : 0;
+	val |= FIELD_PREP(MASK_L1_SYSM_AG_CONT_VAL, arg->sysm_ag_cont_vpro_test);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_CONT_VPRO_EN, val);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_ag(struct viif_device *viif_dev, const struct viif_l1_ag_config *arg)
+{
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_H, (u32)arg->gain_h);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_M, (u32)arg->gain_m);
+	viif_capture_write(viif_dev, REG_L1_SYSM_AG_L, (u32)arg->gain_l);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_hdre(struct viif_device *viif_dev, const struct viif_l1_hdre_config *arg)
+{
+	unsigned long irqflags;
+	int i;
+
+	/* value is already tested in _try*/
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	for (i = 0; i < LEN_L1_HDRE_SRCPOINT; i++)
+		viif_capture_write(viif_dev, REG_L1_HDRE_SRCPOINT(i), arg->hdre_src_point[i]);
+
+	viif_capture_write(viif_dev, REG_L1_HDRE_SRCBASE(0), 0);
+	for (i = 1; i < LEN_L1_HDRE_SRCBASE; i++)
+		viif_capture_write(viif_dev, REG_L1_HDRE_SRCBASE(i), arg->hdre_src_point[i - 1]);
+
+	for (i = 0; i < LEN_L1_HDRE_DSTBASE; i++)
+		viif_capture_write(viif_dev, REG_L1_HDRE_DSTBASE(i), arg->hdre_dst_base[i]);
+
+	for (i = 0; i < LEN_L1_HDRE_RATIO; i++)
+		viif_capture_write(viif_dev, REG_L1_HDRE_RATIO(i), arg->hdre_ratio[i]);
+
+	viif_capture_write(viif_dev, REG_L1_HDRE_DSTMAXVAL, arg->hdre_dst_max_val);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_img_extraction(struct viif_device *viif_dev,
+				       const struct viif_l1_img_extraction_config *arg)
+{
+	unsigned long irqflags;
+
+	/* value is already tested in _try*/
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	viif_capture_write(viif_dev, REG_L1_SLIC_SRCBLACKLEVEL_GR, arg->input_black_gr);
+	viif_capture_write(viif_dev, REG_L1_SLIC_SRCBLACKLEVEL_R, arg->input_black_r);
+	viif_capture_write(viif_dev, REG_L1_SLIC_SRCBLACKLEVEL_B, arg->input_black_b);
+	viif_capture_write(viif_dev, REG_L1_SLIC_SRCBLACKLEVEL_GB, arg->input_black_gb);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_config_vdm_tgroup(struct viif_device *viif_dev, int idx)
+{
+	const struct {
+		u32 cfg;
+		u32 sram_base;
+		u32 sram_size;
+	} conf[] = {
+		/* T01: L1_SET_DPC, L1_SET_LSC */
+		{ VAL_TGROUP_CFG_64BIT_RD, 0x600, 0x20 },
+		/* T02: L2_UNDIST grid table */
+		{ VAL_TGROUP_CFG_32BIT_RD, 0x620, 0x20 },
+		/* T02: L2_GAMMA (path0) */
+		{ VAL_TGROUP_CFG_32BIT_RD, 0x640, 0x20 },
+		/* T03: L2 GAMMA (path1) */
+		{ VAL_TGROUP_CFG_32BIT_RD, 0x660, 0x20 },
+	};
+
+	viif_capture_write(viif_dev, REG_VDM_TGROUP_X_CFG(idx), conf[idx].cfg);
+	viif_capture_write(viif_dev, REG_VDM_TGROUP_X_SRAM_BASE(idx), conf[idx].sram_base);
+	viif_capture_write(viif_dev, REG_VDM_TGROUP_X_SRAM_SIZE(idx), conf[idx].sram_size);
+}
+
+static void dpc_table_transmission(struct viif_device *viif_dev, uintptr_t table_h,
+				   uintptr_t table_m, uintptr_t table_l)
+{
+	u32 val = 0x0U;
+
+	viif_config_vdm_tgroup(viif_dev, IDX_TGROUP_L1_ISP);
+
+	if (table_h) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L1_DPC_H),
+				   (u32)table_h);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L1_DPC_H),
+				   VIIF_DPC_TABLE_BYTES);
+		val |= MASK_VDM_T_ENABLE_L1_DPC_H;
+	}
+
+	if (table_m) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L1_DPC_M),
+				   (u32)table_m);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L1_DPC_M),
+				   VIIF_DPC_TABLE_BYTES);
+		val |= MASK_VDM_T_ENABLE_L1_DPC_M;
+	}
+
+	if (table_l) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L1_DPC_L),
+				   (u32)table_l);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L1_DPC_L),
+				   VIIF_DPC_TABLE_BYTES);
+		val |= MASK_VDM_T_ENABLE_L1_DPC_L;
+	}
+
+	val |= (viif_capture_read(viif_dev, REG_VDM_T_ENABLE) & ~MASK_VDM_T_ENABLE_L1_DPC);
+	viif_capture_write(viif_dev, REG_VDM_T_ENABLE, val);
+}
+
+static void viif_l1_set_dpc(struct viif_device *viif_dev, const struct viif_l1_dpc_config *arg)
+{
+	const struct viif_l1_dpc *param_h, *param_m, *param_l;
+	dma_addr_t table_h = 0;
+	dma_addr_t table_m = 0;
+	dma_addr_t table_l = 0;
+	unsigned long irqflags;
+	u32 val;
+
+	if (arg->param_h.abpc_sta_en) {
+		memcpy(viif_dev->tables->dpc_table_h, arg->table_h, VIIF_DPC_TABLE_BYTES);
+		table_h = (dma_addr_t)(uintptr_t)viif_dev->tables_dma->dpc_table_h;
+	}
+	if (arg->param_m.abpc_sta_en) {
+		memcpy(viif_dev->tables->dpc_table_m, arg->table_m, VIIF_DPC_TABLE_BYTES);
+		table_m = (dma_addr_t)(uintptr_t)viif_dev->tables_dma->dpc_table_m;
+	}
+	if (arg->param_l.abpc_sta_en) {
+		memcpy(viif_dev->tables->dpc_table_l, arg->table_l, VIIF_DPC_TABLE_BYTES);
+		table_l = (dma_addr_t)(uintptr_t)viif_dev->tables_dma->dpc_table_l;
+	}
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	dpc_table_transmission(viif_dev, table_h, table_m, table_l);
+
+	param_h = &arg->param_h;
+	param_m = &arg->param_m;
+	param_l = &arg->param_l;
+
+	val = (param_h->abpc_sta_en) ? MASK_L1_ABPC_ENABLE_H : 0;
+	val |= (param_m->abpc_sta_en) ? MASK_L1_ABPC_ENABLE_M : 0;
+	val |= (param_l->abpc_sta_en) ? MASK_L1_ABPC_ENABLE_L : 0;
+	viif_capture_write(viif_dev, REG_L1_ABPC012_STA_EN, val);
+
+	val = (param_h->abpc_dyn_en) ? MASK_L1_ABPC_ENABLE_H : 0;
+	val |= (param_m->abpc_dyn_en) ? MASK_L1_ABPC_ENABLE_M : 0;
+	val |= (param_l->abpc_dyn_en) ? MASK_L1_ABPC_ENABLE_L : 0;
+	viif_capture_write(viif_dev, REG_L1_ABPC012_DYN_EN, val);
+
+	val = (param_h->abpc_dyn_mode == VIIF_L1_DPC_2PIXEL) ? MASK_L1_ABPC_DYN_MODE_2PIXEL_H : 0;
+	val |= (param_m->abpc_dyn_mode == VIIF_L1_DPC_2PIXEL) ? MASK_L1_ABPC_DYN_MODE_2PIXEL_M : 0;
+	val |= (param_l->abpc_dyn_mode == VIIF_L1_DPC_2PIXEL) ? MASK_L1_ABPC_DYN_MODE_2PIXEL_L : 0;
+	viif_capture_write(viif_dev, REG_L1_ABPC012_DYN_MODE, val);
+
+	/* setup param_h */
+	viif_capture_write(viif_dev, REG_L1_ABPC0_RATIO_LIMIT, param_h->abpc_ratio_limit);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_DARK_LIMIT, param_h->abpc_dark_limit);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_SN_COEF_W_AG_MIN, param_h->abpc_sn_coef_w_ag_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_SN_COEF_W_AG_MID, param_h->abpc_sn_coef_w_ag_mid);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_SN_COEF_W_AG_MAX, param_h->abpc_sn_coef_w_ag_max);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_SN_COEF_B_AG_MIN, param_h->abpc_sn_coef_b_ag_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_SN_COEF_B_AG_MID, param_h->abpc_sn_coef_b_ag_mid);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_SN_COEF_B_AG_MAX, param_h->abpc_sn_coef_b_ag_max);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_SN_COEF_W_TH_MIN, param_h->abpc_sn_coef_w_th_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_SN_COEF_W_TH_MAX, param_h->abpc_sn_coef_w_th_max);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_SN_COEF_B_TH_MIN, param_h->abpc_sn_coef_b_th_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC0_SN_COEF_B_TH_MAX, param_h->abpc_sn_coef_b_th_max);
+
+	/* setup param_m */
+	viif_capture_write(viif_dev, REG_L1_ABPC1_RATIO_LIMIT, param_m->abpc_ratio_limit);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_DARK_LIMIT, param_m->abpc_dark_limit);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_SN_COEF_W_AG_MIN, param_m->abpc_sn_coef_w_ag_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_SN_COEF_W_AG_MID, param_m->abpc_sn_coef_w_ag_mid);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_SN_COEF_W_AG_MAX, param_m->abpc_sn_coef_w_ag_max);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_SN_COEF_B_AG_MIN, param_m->abpc_sn_coef_b_ag_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_SN_COEF_B_AG_MID, param_m->abpc_sn_coef_b_ag_mid);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_SN_COEF_B_AG_MAX, param_m->abpc_sn_coef_b_ag_max);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_SN_COEF_W_TH_MIN, param_m->abpc_sn_coef_w_th_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_SN_COEF_W_TH_MAX, param_m->abpc_sn_coef_w_th_max);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_SN_COEF_B_TH_MIN, param_m->abpc_sn_coef_b_th_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC1_SN_COEF_B_TH_MAX, param_m->abpc_sn_coef_b_th_max);
+
+	/* setup param_l */
+	viif_capture_write(viif_dev, REG_L1_ABPC2_RATIO_LIMIT, param_l->abpc_ratio_limit);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_DARK_LIMIT, param_l->abpc_dark_limit);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_SN_COEF_W_AG_MIN, param_l->abpc_sn_coef_w_ag_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_SN_COEF_W_AG_MID, param_l->abpc_sn_coef_w_ag_mid);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_SN_COEF_W_AG_MAX, param_l->abpc_sn_coef_w_ag_max);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_SN_COEF_B_AG_MIN, param_l->abpc_sn_coef_b_ag_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_SN_COEF_B_AG_MID, param_l->abpc_sn_coef_b_ag_mid);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_SN_COEF_B_AG_MAX, param_l->abpc_sn_coef_b_ag_max);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_SN_COEF_W_TH_MIN, param_l->abpc_sn_coef_w_th_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_SN_COEF_W_TH_MAX, param_l->abpc_sn_coef_w_th_max);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_SN_COEF_B_TH_MIN, param_l->abpc_sn_coef_b_th_min);
+	viif_capture_write(viif_dev, REG_L1_ABPC2_SN_COEF_B_TH_MAX, param_l->abpc_sn_coef_b_th_max);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_preset_white_balance(struct viif_device *viif_dev,
+					     const struct viif_l1_preset_white_balance_config *arg)
+{
+	const struct viif_l1_preset_wb *param_h, *param_m, *param_l;
+	unsigned long irqflags;
+
+	param_h = &arg->param_h;
+	param_m = &arg->param_m;
+	param_l = &arg->param_l;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	viif_capture_write(viif_dev, REG_L1_PWHB_DSTMAXVAL, arg->dstmaxval);
+
+	viif_capture_write(viif_dev, REG_L1_PWHB_H_GR, param_h->gain_gr);
+	viif_capture_write(viif_dev, REG_L1_PWHB_HR, param_h->gain_r);
+	viif_capture_write(viif_dev, REG_L1_PWHB_HB, param_h->gain_b);
+	viif_capture_write(viif_dev, REG_L1_PWHB_H_GB, param_h->gain_gb);
+
+	viif_capture_write(viif_dev, REG_L1_PWHB_M_GR, param_m->gain_gr);
+	viif_capture_write(viif_dev, REG_L1_PWHB_MR, param_m->gain_r);
+	viif_capture_write(viif_dev, REG_L1_PWHB_MB, param_m->gain_b);
+	viif_capture_write(viif_dev, REG_L1_PWHB_M_GB, param_m->gain_gb);
+
+	viif_capture_write(viif_dev, REG_L1_PWHB_L_GR, param_l->gain_gr);
+	viif_capture_write(viif_dev, REG_L1_PWHB_LR, param_l->gain_r);
+	viif_capture_write(viif_dev, REG_L1_PWHB_LB, param_l->gain_b);
+	viif_capture_write(viif_dev, REG_L1_PWHB_L_GB, param_l->gain_gb);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void
+viif_l1_set_raw_color_noise_reduction(struct viif_device *viif_dev,
+				      const struct viif_l1_raw_color_noise_reduction_config *arg)
+{
+	const struct viif_l1_raw_color_noise_reduction *params[] = {
+		&arg->param_h,
+		&arg->param_m,
+		&arg->param_l,
+	};
+	unsigned long irqflags;
+	int i;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	for (i = 0; i < 3; i++) {
+		const struct viif_l1_raw_color_noise_reduction *param = params[i];
+		/* param_h */
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_SW(i), param->rcnr_sw ? 1 : 0);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_CNF_DARK_AG0(i),
+				   param->rcnr_cnf_dark_ag0);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_CNF_DARK_AG1(i),
+				   param->rcnr_cnf_dark_ag1);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_CNF_DARK_AG2(i),
+				   param->rcnr_cnf_dark_ag2);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_CNF_RATIO_AG0(i),
+				   param->rcnr_cnf_ratio_ag0);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_CNF_RATIO_AG1(i),
+				   param->rcnr_cnf_ratio_ag1);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_CNF_RATIO_AG2(i),
+				   param->rcnr_cnf_ratio_ag2);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_CNF_CLIP_GAIN_R(i),
+				   param->rcnr_cnf_clip_gain_r);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_CNF_CLIP_GAIN_G(i),
+				   param->rcnr_cnf_clip_gain_g);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_CNF_CLIP_GAIN_B(i),
+				   param->rcnr_cnf_clip_gain_b);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_A1L_DARK_AG0(i),
+				   param->rcnr_a1l_dark_ag0);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_A1L_DARK_AG1(i),
+				   param->rcnr_a1l_dark_ag1);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_A1L_DARK_AG2(i),
+				   param->rcnr_a1l_dark_ag2);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_A1L_RATIO_AG0(i),
+				   param->rcnr_a1l_ratio_ag0);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_A1L_RATIO_AG1(i),
+				   param->rcnr_a1l_ratio_ag1);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_A1L_RATIO_AG2(i),
+				   param->rcnr_a1l_ratio_ag2);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_INF_ZERO_CLIP(i),
+				   param->rcnr_inf_zero_clip);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_MERGE_D2BLEND_AG0(i),
+				   param->rcnr_merge_d2blend_ag0);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_MERGE_D2BLEND_AG1(i),
+				   param->rcnr_merge_d2blend_ag1);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_MERGE_D2BLEND_AG2(i),
+				   param->rcnr_merge_d2blend_ag2);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_MERGE_BLACK(i), param->rcnr_merge_black);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_MERGE_MINDIV(i),
+				   param->rcnr_merge_mindiv);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_HRY_TYPE(i), param->rcnr_hry_type);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_ANF_BLEND_AG0(i),
+				   param->rcnr_anf_blend_ag0);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_ANF_BLEND_AG1(i),
+				   param->rcnr_anf_blend_ag1);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_ANF_BLEND_AG2(i),
+				   param->rcnr_anf_blend_ag2);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_LPF_THRESHOLD(i),
+				   param->rcnr_lpf_threshold);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_MERGE_HLBLEND_AG0(i),
+				   param->rcnr_merge_hlblend_ag0);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_MERGE_HLBLEND_AG1(i),
+				   param->rcnr_merge_hlblend_ag1);
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_MERGE_HLBLEND_AG2(i),
+				   param->rcnr_merge_hlblend_ag2);
+
+		viif_capture_write(viif_dev, REG_L1_RCNR_X_GNR_SW(i), param->rcnr_gnr_sw ? 1 : 0);
+
+		if (param->rcnr_gnr_sw) {
+			viif_capture_write(viif_dev, REG_L1_RCNR_X_GNR_RATIO(i),
+					   param->rcnr_gnr_ratio);
+			viif_capture_write(viif_dev, REG_L1_RCNR_X_GNR_WIDE_EN(i),
+					   param->rcnr_gnr_wide_en ? 1 : 0);
+		}
+	}
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_hdrs(struct viif_device *viif_dev, const struct viif_l1_hdrs_config *arg)
+{
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	viif_capture_write(viif_dev, REG_L1_HDRS_HDRMODE, arg->hdrs_hdr_mode);
+
+	viif_capture_write(viif_dev, REG_L1_HDRS_HDRRATIO_M, arg->hdrs_hdr_ratio_m);
+	viif_capture_write(viif_dev, REG_L1_HDRS_HDRRATIO_L, arg->hdrs_hdr_ratio_l);
+	viif_capture_write(viif_dev, REG_L1_HDRS_HDRRATIO_E, arg->hdrs_hdr_ratio_e);
+
+	viif_capture_write(viif_dev, REG_L1_HDRS_DG_H, arg->hdrs_dg_h);
+	viif_capture_write(viif_dev, REG_L1_HDRS_DG_M, arg->hdrs_dg_m);
+	viif_capture_write(viif_dev, REG_L1_HDRS_DG_L, arg->hdrs_dg_l);
+	viif_capture_write(viif_dev, REG_L1_HDRS_DG_E, arg->hdrs_dg_e);
+
+	viif_capture_write(viif_dev, REG_L1_HDRS_BLENDEND_H, arg->hdrs_blendend_h);
+	viif_capture_write(viif_dev, REG_L1_HDRS_BLENDEND_M, arg->hdrs_blendend_m);
+	viif_capture_write(viif_dev, REG_L1_HDRS_BLENDEND_E, arg->hdrs_blendend_e);
+
+	viif_capture_write(viif_dev, REG_L1_HDRS_BLENDBEG_H, arg->hdrs_blendbeg_h);
+	viif_capture_write(viif_dev, REG_L1_HDRS_BLENDBEG_M, arg->hdrs_blendbeg_m);
+	viif_capture_write(viif_dev, REG_L1_HDRS_BLENDBEG_E, arg->hdrs_blendbeg_e);
+
+	viif_capture_write(viif_dev, REG_L1_HDRS_LEDMODE_ON, arg->hdrs_led_mode_on ? 1 : 0);
+	viif_capture_write(viif_dev, REG_L1_HDRS_DSTMAXVAL, arg->hdrs_dst_max_val);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void
+viif_l1_set_black_level_correction(struct viif_device *viif_dev,
+				   const struct viif_l1_black_level_correction_config *arg)
+{
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	viif_capture_write(viif_dev, REG_L1_BLVC_SRCBLACKLEVEL_GR, arg->srcblacklevel_gr);
+	viif_capture_write(viif_dev, REG_L1_BLVC_SRCBLACKLEVEL_R, arg->srcblacklevel_r);
+	viif_capture_write(viif_dev, REG_L1_BLVC_SRCBLACKLEVEL_B, arg->srcblacklevel_b);
+	viif_capture_write(viif_dev, REG_L1_BLVC_SRCBLACKLEVELGB, arg->srcblacklevel_gb);
+
+	viif_capture_write(viif_dev, REG_L1_BLVC_MULTVAL_GR, arg->mulval_gr);
+	viif_capture_write(viif_dev, REG_L1_BLVC_MULTVAL_R, arg->mulval_r);
+	viif_capture_write(viif_dev, REG_L1_BLVC_MULTVAL_B, arg->mulval_b);
+	viif_capture_write(viif_dev, REG_L1_BLVC_MULTVAL_GB, arg->mulval_gb);
+
+	viif_capture_write(viif_dev, REG_L1_BLVC_DSTMAXVAL, arg->dstmaxval);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void lsc_table_transmission(struct viif_device *viif_dev, dma_addr_t table_gr,
+				   dma_addr_t table_r, dma_addr_t table_b, dma_addr_t table_gb)
+{
+	u32 val = 0x0U;
+
+	viif_config_vdm_tgroup(viif_dev, IDX_TGROUP_L1_ISP);
+
+	if (table_gr) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L1_LSSC_GR),
+				   (u32)table_gr);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L1_LSSC_GR),
+				   VIIF_LSC_TABLE_BYTES);
+		val |= MASK_VDM_T_ENABLE_L1_LSSC_GR;
+	}
+
+	if (table_r) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L1_LSSC_R),
+				   (u32)table_r);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L1_LSSC_R),
+				   VIIF_LSC_TABLE_BYTES);
+		val |= MASK_VDM_T_ENABLE_L1_LSSC_R;
+	}
+
+	if (table_b) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L1_LSSC_B),
+				   (u32)table_b);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L1_LSSC_B),
+				   VIIF_LSC_TABLE_BYTES);
+		val |= MASK_VDM_T_ENABLE_L1_LSSC_B;
+	}
+
+	if (table_gb) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L1_LSSC_GB),
+				   (u32)table_gb);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L1_LSSC_GB),
+				   VIIF_LSC_TABLE_BYTES);
+		val |= MASK_VDM_T_ENABLE_L1_LSSC_GB;
+	}
+
+	val |= (viif_capture_read(viif_dev, REG_VDM_T_ENABLE) & ~MASK_VDM_T_ENABLE_L1_LSSC);
+	viif_capture_write(viif_dev, REG_VDM_T_ENABLE, val);
+}
+
+static inline u32 gen_grid_size(u32 param)
+{
+	switch (param) {
+	case 32U:
+		return 5U;
+	case 64U:
+		return 6U;
+	case 128U:
+		return 7U;
+	case 256U:
+		return 8U;
+	case 512U:
+		return 9U;
+	default:
+		return 0;
+	}
+}
+
+#define PACK_PARA_COEF(max, min) (FIELD_PREP(0x1FFF0000, (max)) | FIELD_PREP(0x1FFF, (min)))
+
+static void viif_l1_set_lsc(struct viif_device *viif_dev, const struct viif_l1_lsc_config *arg)
+{
+	dma_addr_t table_gr = 0;
+	dma_addr_t table_gb = 0;
+	dma_addr_t table_r = 0;
+	dma_addr_t table_b = 0;
+	unsigned long irqflags;
+	u32 val;
+
+	if (!arg->enable) {
+		spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+		hwd_viif_isp_guard_start(viif_dev);
+
+		viif_capture_write(viif_dev, REG_L1_LSSC_EN, 0);
+
+		hwd_viif_isp_guard_end(viif_dev);
+		spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+		return;
+	}
+
+	if (arg->enable & VIIF_L1_LSC_GRID_EN_MASK) {
+		memcpy(viif_dev->tables->lsc_table_gr, arg->table_gr, VIIF_LSC_TABLE_BYTES);
+		memcpy(viif_dev->tables->lsc_table_r, arg->table_r, VIIF_LSC_TABLE_BYTES);
+		memcpy(viif_dev->tables->lsc_table_b, arg->table_b, VIIF_LSC_TABLE_BYTES);
+		memcpy(viif_dev->tables->lsc_table_gb, arg->table_gb, VIIF_LSC_TABLE_BYTES);
+		table_gr = (dma_addr_t)(uintptr_t)viif_dev->tables_dma->lsc_table_gr;
+		table_r = (dma_addr_t)(uintptr_t)viif_dev->tables_dma->lsc_table_r;
+		table_b = (dma_addr_t)(uintptr_t)viif_dev->tables_dma->lsc_table_b;
+		table_gb = (dma_addr_t)(uintptr_t)viif_dev->tables_dma->lsc_table_gb;
+	}
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+	lsc_table_transmission(viif_dev, table_gr, table_r, table_b, table_gb);
+
+	/* parabola shading */
+	if (arg->enable & VIIF_L1_LSC_PARABOLA_EN_MASK) {
+		const struct viif_l1_lsc_parabola_param *parabola_param =
+			&arg->param.lssc_parabola_param;
+		const struct viif_l1_lsc_parabola_ag_param *params[] = {
+			&parabola_param->r_2d,	&parabola_param->r_4d,	&parabola_param->gr_2d,
+			&parabola_param->gr_4d, &parabola_param->gb_2d, &parabola_param->gb_4d,
+			&parabola_param->b_2d,	&parabola_param->b_4d,
+		};
+		int i;
+
+		viif_capture_write(viif_dev, REG_L1_LSSC_PARA_EN, 1);
+
+		viif_capture_write(viif_dev, REG_L1_LSSC_PARA_H_CENTER,
+				   parabola_param->lssc_para_h_center);
+		viif_capture_write(viif_dev, REG_L1_LSSC_PARA_V_CENTER,
+				   parabola_param->lssc_para_v_center);
+
+		viif_capture_write(viif_dev, REG_L1_LSSC_PARA_H_GAIN,
+				   parabola_param->lssc_para_h_gain);
+		viif_capture_write(viif_dev, REG_L1_LSSC_PARA_V_GAIN,
+				   parabola_param->lssc_para_v_gain);
+
+		viif_capture_write(viif_dev, REG_L1_LSSC_PARA_MGSEL2,
+				   parabola_param->lssc_para_mgsel2);
+		viif_capture_write(viif_dev, REG_L1_LSSC_PARA_MGSEL4,
+				   parabola_param->lssc_para_mgsel4);
+
+		for (i = 0; i < 8; i++) {
+			const struct viif_l1_lsc_parabola_ag_param *p = params[i];
+
+			viif_capture_write(viif_dev, REG_L1_LSSC_PARA_COEF_X_H_L(i),
+					   PACK_PARA_COEF(p->lssc_paracoef_h_l_max,
+							  p->lssc_paracoef_h_l_min));
+			viif_capture_write(viif_dev, REG_L1_LSSC_PARA_COEF_X_H_R(i),
+					   PACK_PARA_COEF(p->lssc_paracoef_h_r_max,
+							  p->lssc_paracoef_h_r_min));
+			viif_capture_write(viif_dev, REG_L1_LSSC_PARA_COEF_X_V_U(i),
+					   PACK_PARA_COEF(p->lssc_paracoef_v_u_max,
+							  p->lssc_paracoef_v_u_min));
+			viif_capture_write(viif_dev, REG_L1_LSSC_PARA_COEF_X_V_D(i),
+					   PACK_PARA_COEF(p->lssc_paracoef_v_d_max,
+							  p->lssc_paracoef_v_d_min));
+			viif_capture_write(viif_dev, REG_L1_LSSC_PARA_COEF_X_HV_LU(i),
+					   PACK_PARA_COEF(p->lssc_paracoef_hv_lu_max,
+							  p->lssc_paracoef_hv_lu_min));
+			viif_capture_write(viif_dev, REG_L1_LSSC_PARA_COEF_X_HV_RU(i),
+					   PACK_PARA_COEF(p->lssc_paracoef_hv_ru_max,
+							  p->lssc_paracoef_hv_ru_min));
+			viif_capture_write(viif_dev, REG_L1_LSSC_PARA_COEF_X_HV_LD(i),
+					   PACK_PARA_COEF(p->lssc_paracoef_hv_ld_max,
+							  p->lssc_paracoef_hv_ld_min));
+			viif_capture_write(viif_dev, REG_L1_LSSC_PARA_COEF_X_HV_RD(i),
+					   PACK_PARA_COEF(p->lssc_paracoef_hv_rd_max,
+							  p->lssc_paracoef_hv_rd_min));
+		}
+	} else {
+		viif_capture_write(viif_dev, REG_L1_LSSC_PARA_EN, 0);
+	}
+
+	/* grid shading */
+	if (arg->enable & VIIF_L1_LSC_GRID_EN_MASK) {
+		const struct viif_l1_lsc_grid_param *grid_param = &arg->param.lssc_grid_param;
+		u32 grid_h_size = gen_grid_size(grid_param->lssc_grid_h_size);
+		u32 grid_v_size = gen_grid_size(grid_param->lssc_grid_v_size);
+
+		viif_capture_write(viif_dev, REG_L1_LSSC_GRID_EN, 1);
+		viif_capture_write(viif_dev, REG_L1_LSSC_GRID_H_SIZE, grid_h_size);
+		viif_capture_write(viif_dev, REG_L1_LSSC_GRID_V_SIZE, grid_v_size);
+		viif_capture_write(viif_dev, REG_L1_LSSC_GRID_H_CENTER,
+				   grid_param->lssc_grid_h_center);
+		viif_capture_write(viif_dev, REG_L1_LSSC_GRID_V_CENTER,
+				   grid_param->lssc_grid_v_center);
+		viif_capture_write(viif_dev, REG_L1_LSSC_GRID_MGSEL, grid_param->lssc_grid_mgsel);
+
+	} else {
+		viif_capture_write(viif_dev, REG_L1_LSSC_GRID_EN, 0);
+	}
+
+	/* preset white balance */
+	val = (arg->param.lssc_pwhb_r_gain_max << 16U) | (arg->param.lssc_pwhb_r_gain_min);
+	viif_capture_write(viif_dev, REG_L1_LSSC_PWHB_R_GAIN, val);
+
+	val = (arg->param.lssc_pwhb_gr_gain_max << 16U) | (arg->param.lssc_pwhb_gr_gain_min);
+	viif_capture_write(viif_dev, REG_L1_LSSC_PWHB_GR_GAIN, val);
+
+	val = (arg->param.lssc_pwhb_gb_gain_max << 16U) | (arg->param.lssc_pwhb_gb_gain_min);
+	viif_capture_write(viif_dev, REG_L1_LSSC_PWHB_GB_GAIN, val);
+
+	val = (arg->param.lssc_pwhb_b_gain_max << 16U) | (arg->param.lssc_pwhb_b_gain_min);
+	viif_capture_write(viif_dev, REG_L1_LSSC_PWHB_B_GAIN, val);
+
+	viif_capture_write(viif_dev, REG_L1_LSSC_EN, 1);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_main_process(struct viif_device *viif_dev,
+				     const struct viif_l1_main_process_config *arg)
+{
+	unsigned long irqflags;
+	u32 val;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	viif_capture_write(viif_dev, REG_L1_MPRO_CONF, arg->damp_lsbsel << 4);
+	viif_capture_write(viif_dev, REG_L1_MPRO_LCS_MODE, arg->demosaic_mode);
+
+	if (arg->colormat_enable) {
+		const struct viif_l1_color_matrix_correction *color_matrix = &arg->colormat_param;
+
+		viif_capture_write(viif_dev, REG_L1_MPRO_SW, 1);
+
+		val = (u32)color_matrix->coef_rmg_min & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_RMG_MIN, val);
+
+		val = (u32)color_matrix->coef_rmg_max & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_RMG_MAX, val);
+
+		val = (u32)color_matrix->coef_rmb_min & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_RMB_MIN, val);
+
+		val = (u32)color_matrix->coef_rmb_max & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_RMB_MAX, val);
+
+		val = (u32)color_matrix->coef_gmr_min & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_GMR_MIN, val);
+
+		val = (u32)color_matrix->coef_gmr_max & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_GMR_MAX, val);
+
+		val = (u32)color_matrix->coef_gmb_min & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_GMB_MIN, val);
+
+		val = (u32)color_matrix->coef_gmb_max & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_GMB_MAX, val);
+
+		val = (u32)color_matrix->coef_bmr_min & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_BMR_MIN, val);
+
+		val = (u32)color_matrix->coef_bmr_max & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_BMR_MAX, val);
+
+		val = (u32)color_matrix->coef_bmg_min & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_BMG_MIN, val);
+
+		val = (u32)color_matrix->coef_bmg_max & 0xffffU;
+		viif_capture_write(viif_dev, REG_L1_MPRO_LM0_BMG_MAX, val);
+
+		viif_capture_write(viif_dev, REG_L1_MPRO_DST_MINVAL, (u32)color_matrix->dst_minval);
+	} else {
+		viif_capture_write(viif_dev, REG_L1_MPRO_SW, 0);
+	}
+
+	viif_capture_write(viif_dev, REG_L1_MPRO_DST_MAXVAL, arg->dst_maxval);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_awb(struct viif_device *viif_dev, const struct viif_l1_awb_config *arg)
+{
+	const struct viif_l1_awb *param = &arg->param;
+	unsigned long irqflags;
+	u32 val, ygate_data;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	viif_capture_write(viif_dev, REG_L1_AWHB_WBMRG, arg->awhb_wbmrg);
+	viif_capture_write(viif_dev, REG_L1_AWHB_WBMGG, arg->awhb_wbmgg);
+	viif_capture_write(viif_dev, REG_L1_AWHB_WBMBG, arg->awhb_wbmbg);
+
+	val = viif_capture_read(viif_dev, REG_L1_AWHB_SW) & ~MASK_L1_AWHB_SW_EN;
+
+	/* disabling AWB */
+	if (!arg->enable) {
+		viif_capture_write(viif_dev, REG_L1_AWHB_SW, val);
+		goto op_done;
+	}
+
+	/* enabling AWB */
+	viif_capture_write(viif_dev, REG_L1_AWHB_SW, val | MASK_L1_AWHB_SW_EN);
+
+	if (param->awhb_ygate_data == 64U)
+		ygate_data = 0U;
+	else if (param->awhb_ygate_data == 128U)
+		ygate_data = 1U;
+	else if (param->awhb_ygate_data == 256U)
+		ygate_data = 2U;
+	else
+		ygate_data = 3U;
+
+	val = param->awhb_ygate_sel ? MASK_L1_AWHB_GATE_YGATE_SEL : 0;
+	val |= FIELD_PREP(MASK_L1_AWHB_GATE_YGATE_DATA, ygate_data);
+	val |= FIELD_PREP(MASK_L1_AWHB_GATE_CGRANGE, param->awhb_cgrange);
+	viif_capture_write(viif_dev, REG_L1_AWHB_GATE_CONF0, val);
+
+	val = param->awhb_ygatesw ? MASK_L1_AWHB_GATE_YGATESW : 0;
+	val |= param->awhb_hexsw ? MASK_L1_AWHB_GATE_HEXSW : 0;
+	val |= FIELD_PREP(MASK_L1_AWHB_GATE_AREAMODE, param->awhb_areamode);
+	viif_capture_write(viif_dev, REG_L1_AWHB_GATE_CONF1, val);
+
+	viif_capture_write(viif_dev, REG_L1_AWHB_AREA_HSIZE, param->awhb_area_hsize);
+	viif_capture_write(viif_dev, REG_L1_AWHB_AREA_VSIZE, param->awhb_area_vsize);
+	viif_capture_write(viif_dev, REG_L1_AWHB_AREA_HOFS, param->awhb_area_hofs);
+	viif_capture_write(viif_dev, REG_L1_AWHB_AREA_VOFS, param->awhb_area_vofs);
+
+	viif_capture_write(viif_dev, REG_L1_AWHB_AREA_MASKH, param->awhb_area_maskh);
+	viif_capture_write(viif_dev, REG_L1_AWHB_AREA_MASKL, param->awhb_area_maskl);
+
+	val = param->awhb_sq_sw[0] ? MASK_L1_AWHB_SQ_CONF_SQ1SW : 0;
+	val |= param->awhb_sq_pol[0] ? MASK_L1_AWHB_SQ_CONF_SQ1POL : 0;
+	val |= param->awhb_sq_sw[1] ? MASK_L1_AWHB_SQ_CONF_SQ2SW : 0;
+	val |= param->awhb_sq_pol[1] ? MASK_L1_AWHB_SQ_CONF_SQ2POL : 0;
+	val |= param->awhb_sq_sw[2] ? MASK_L1_AWHB_SQ_CONF_SQ3SW : 0;
+	val |= param->awhb_sq_pol[2] ? MASK_L1_AWHB_SQ_CONF_SQ3POL : 0;
+	viif_capture_write(viif_dev, REG_L1_AWHB_SQ_CONF, val);
+
+	viif_capture_write(viif_dev, REG_L1_AWHB_YGATEH, (u32)param->awhb_ygateh);
+	viif_capture_write(viif_dev, REG_L1_AWHB_YGATEL, (u32)param->awhb_ygatel);
+
+	viif_capture_write(viif_dev, REG_L1_AWHB_BYCUT0P, param->awhb_bycut0p);
+	viif_capture_write(viif_dev, REG_L1_AWHB_BYCUT0N, param->awhb_bycut0n);
+	viif_capture_write(viif_dev, REG_L1_AWHB_RYCUT0P, param->awhb_rycut0p);
+	viif_capture_write(viif_dev, REG_L1_AWHB_RYCUT0N, param->awhb_rycut0n);
+
+	val = (u32)param->awhb_rbcut0h & 0xffU;
+	viif_capture_write(viif_dev, REG_L1_AWHB_RBCUT0H, val);
+	val = (u32)param->awhb_rbcut0l & 0xffU;
+	viif_capture_write(viif_dev, REG_L1_AWHB_RBCUT0L, val);
+
+	val = (u32)param->awhb_bycut_h[0] & 0xffU;
+	viif_capture_write(viif_dev, REG_L1_AWHB_BYCUT1H, val);
+	viif_capture_write(viif_dev, REG_L1_AWHB_BYCUT1L, param->awhb_bycut_l[0]);
+	val = (u32)param->awhb_bycut_h[1] & 0xffU;
+	viif_capture_write(viif_dev, REG_L1_AWHB_BYCUT2H, val);
+	viif_capture_write(viif_dev, REG_L1_AWHB_BYCUT2L, param->awhb_bycut_l[1]);
+	val = (u32)param->awhb_bycut_h[2] & 0xffU;
+	viif_capture_write(viif_dev, REG_L1_AWHB_BYCUT3H, val);
+	viif_capture_write(viif_dev, REG_L1_AWHB_BYCUT3L, param->awhb_bycut_l[2]);
+
+	val = (u32)param->awhb_rycut_h[0] & 0xffU;
+	viif_capture_write(viif_dev, REG_L1_AWHB_RYCUT1H, val);
+	viif_capture_write(viif_dev, REG_L1_AWHB_RYCUT1L, param->awhb_rycut_l[0]);
+	val = (u32)param->awhb_rycut_h[1] & 0xffU;
+	viif_capture_write(viif_dev, REG_L1_AWHB_RYCUT2H, val);
+	viif_capture_write(viif_dev, REG_L1_AWHB_RYCUT2L, param->awhb_rycut_l[1]);
+	val = (u32)param->awhb_rycut_h[2] & 0xffU;
+	viif_capture_write(viif_dev, REG_L1_AWHB_RYCUT3H, val);
+	viif_capture_write(viif_dev, REG_L1_AWHB_RYCUT3L, param->awhb_rycut_l[2]);
+
+	val = (u32)param->awhb_awbsftu & 0xffU;
+	viif_capture_write(viif_dev, REG_L1_AWHB_AWBSFTU, val);
+	val = (u32)param->awhb_awbsftv & 0xffU;
+	viif_capture_write(viif_dev, REG_L1_AWHB_AWBSFTV, val);
+
+	val = (param->awhb_awbhuecor ? MASK_L1_AWHB_AWBSPD_HUECOR : 0);
+	val |= FIELD_PREP(MASK_L1_AWHB_AWBSPD_SPD, param->awhb_awbspd);
+	viif_capture_write(viif_dev, REG_L1_AWHB_AWBSPD, val);
+
+	viif_capture_write(viif_dev, REG_L1_AWHB_AWBULV, param->awhb_awbulv);
+	viif_capture_write(viif_dev, REG_L1_AWHB_AWBVLV, param->awhb_awbvlv);
+	viif_capture_write(viif_dev, REG_L1_AWHB_AWBWAIT, (u32)param->awhb_awbwait);
+
+	viif_capture_write(viif_dev, REG_L1_AWHB_AWBONDOT, param->awhb_awbondot);
+	viif_capture_write(viif_dev, REG_L1_AWHB_AWBFZTIM, param->awhb_awbfztim);
+
+	viif_capture_write(viif_dev, REG_L1_AWHB_WBGRMAX, (u32)param->awhb_wbgrmax);
+	viif_capture_write(viif_dev, REG_L1_AWHB_WBGBMAX, (u32)param->awhb_wbgbmax);
+	viif_capture_write(viif_dev, REG_L1_AWHB_WBGRMIN, (u32)param->awhb_wbgrmin);
+	viif_capture_write(viif_dev, REG_L1_AWHB_WBGBMIN, (u32)param->awhb_wbgbmin);
+
+op_done:
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_lock_awb_gain(struct viif_device *viif_dev, const u32 *enable)
+{
+	unsigned long irqflags;
+	u32 val;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	val = viif_capture_read(viif_dev, REG_L1_AWHB_SW) & ~MASK_L1_AWHB_SW_LOCK;
+	val |= (*enable ? MASK_L1_AWHB_SW_LOCK : 0);
+	viif_capture_write(viif_dev, REG_L1_AWHB_SW, val);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+/* Convert the unit of time-period (from sysclk, to num lines in the image) */
+static u32 sysclk_to_numlines(u32 time_in_sysclk, const struct viif_img_clk *img_clk)
+{
+	u64 v1 = (u64)time_in_sysclk * img_clk->pixel_clock;
+	u64 v2 = (u64)img_clk->htotal_size * VIIF_SYS_CLK;
+
+	return (u32)div64_u64(v1, v2);
+}
+
+static void viif_l1_set_hdrc(struct viif_device *viif_dev, const struct viif_l1_hdrc_config *arg)
+{
+	const struct viif_l1_hdrc *param = &arg->param;
+	unsigned long irqflags;
+	u32 val, sw_delay1;
+	int i;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	/* disabling HDRC */
+	if (!arg->enable) {
+		viif_capture_write(viif_dev, REG_L1_HDRC_THR_SFT_AMT, arg->hdrc_thr_sft_amt);
+		viif_capture_write(viif_dev, REG_L1_HDRC_EN, 0);
+
+		goto done_op;
+	}
+
+	/* enabling HDRC */
+	viif_capture_write(viif_dev, REG_L1_HDRC_RATIO,
+			   (param->hdrc_ratio - VIIF_L1_HDRC_RATIO_OFFSET));
+	viif_capture_write(viif_dev, REG_L1_HDRC_PT_RATIO, param->hdrc_pt_ratio);
+
+	viif_capture_write(viif_dev, REG_L1_HDRC_PT_BLEND, param->hdrc_pt_blend);
+	viif_capture_write(viif_dev, REG_L1_HDRC_PT_BLEND2, param->hdrc_pt_blend2);
+
+	viif_capture_write(viif_dev, REG_L1_HDRC_PT_SAT, param->hdrc_pt_sat);
+	viif_capture_write(viif_dev, REG_L1_HDRC_TN_TYPE, param->hdrc_tn_type);
+
+	for (i = 0; i < LEN_L1_HDRC_UTN_TBL; i++)
+		viif_capture_write(viif_dev, REG_L1_HDRC_UTN_TBL(i), param->hdrc_utn_tbl[i]);
+
+	viif_capture_write(viif_dev, REG_L1_HDRC_FLR_VAL, param->hdrc_flr_val);
+	viif_capture_write(viif_dev, REG_L1_HDRC_FLR_ADP, param->hdrc_flr_adp ? 1 : 0);
+
+	viif_capture_write(viif_dev, REG_L1_HDRC_YBR_OFF, param->hdrc_ybr_off ? 1 : 0);
+	viif_capture_write(viif_dev, REG_L1_HDRC_ORGY_BLEND, param->hdrc_orgy_blend);
+
+	val = ((viif_capture_read(viif_dev, REG_L1_SYSM_HEIGHT)) % 64U) / 2U;
+	viif_capture_write(viif_dev, REG_L1_HDRC_MAR_TOP, val);
+	val = ((viif_capture_read(viif_dev, REG_L1_SYSM_WIDTH)) % 64U) / 2U;
+	viif_capture_write(viif_dev, REG_L1_HDRC_MAR_LEFT, val);
+
+	viif_capture_write(viif_dev, REG_L1_HDRC_EN, 1);
+
+	/* update of sw_delay1 must be done when MAIN unit is NOT running. */
+	if (!viif_dev->run_flag_main) {
+		sw_delay1 = sysclk_to_numlines(VIIF_REGBUF_ACCESS_TIME, &viif_dev->img_clk) +
+			    VIIF_L1_DELAY_W_HDRC + 1U;
+		val = viif_capture_read(viif_dev, REG_INT_M1_LINE) & 0xffffU;
+		val |= (sw_delay1 << 16U);
+		viif_capture_write(viif_dev, REG_INT_M1_LINE, val);
+		/* M2_LINE is the same condition as M1_LINE */
+		viif_capture_write(viif_dev, REG_INT_M2_LINE, val);
+	}
+
+done_op:
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_hdrc_ltm(struct viif_device *viif_dev,
+				 const struct viif_l1_hdrc_ltm_config *arg)
+{
+	unsigned long irqflags;
+	int i;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	viif_capture_write(viif_dev, REG_L1_HDRC_TNP_MAX, arg->tnp_max);
+	viif_capture_write(viif_dev, REG_L1_HDRC_TNP_MAG, arg->tnp_mag);
+
+	for (i = 0; i < LEN_L1_HDRC_TNP_FIL; i++)
+		viif_capture_write(viif_dev, REG_L1_HDRC_TNP_FIL(i), (u32)arg->tnp_fil[i]);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void viif_l1_set_gamma(struct viif_device *viif_dev, const struct viif_l1_gamma_config *arg)
+{
+	const struct viif_l1_gamma *param = &arg->param;
+	unsigned long irqflags;
+	int i;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	/* disabling L1 gamma */
+	if (!arg->enable) {
+		viif_capture_write(viif_dev, REG_L1_VPRO_PGC_SW, 0);
+		goto done_op;
+	}
+
+	/* enabling L1 gamma */
+	for (i = 0; i < 44; i++)
+		viif_capture_write(viif_dev, REG_L1_VPRO_GAMxP(i), param->gam_p[i]);
+	viif_capture_write(viif_dev, REG_L1_VPRO_BLKADJ, param->blkadj);
+	viif_capture_write(viif_dev, REG_L1_VPRO_PGC_SW, 1);
+
+done_op:
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void
+viif_l1_set_img_quality_adjustment(struct viif_device *viif_dev,
+				   const struct viif_l1_img_quality_adjustment_config *arg)
+{
+	unsigned long irqflags;
+	u32 val;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	/* RGB to YUV (enabled by default, should be enabled) */
+	viif_capture_write(viif_dev, REG_L1_VPRO_YUVC_SW, 1);
+	viif_capture_write(viif_dev, REG_L1_VPRO_CB_MAT, (u32)arg->coef_cb);
+	viif_capture_write(viif_dev, REG_L1_VPRO_CR_MAT, (u32)arg->coef_cr);
+
+	/* brightness */
+	val = (u32)arg->brightness & 0xffffU;
+	if (val) {
+		viif_capture_write(viif_dev, REG_L1_VPRO_BRIGHT_SW, 1);
+		viif_capture_write(viif_dev, REG_L1_VPRO_BRIGHT, val);
+	} else {
+		viif_capture_write(viif_dev, REG_L1_VPRO_BRIGHT_SW, 0);
+	}
+
+	/* linear contrast */
+	if ((u32)arg->linear_contrast != 128U) {
+		viif_capture_write(viif_dev, REG_L1_VPRO_LCNT_SW, 1);
+		viif_capture_write(viif_dev, REG_L1_VPRO_LCONT_LEV, arg->linear_contrast);
+	} else {
+		viif_capture_write(viif_dev, REG_L1_VPRO_LCNT_SW, 0);
+	}
+
+	/* nonlinear contrast */
+	if (arg->enable & VIIF_L1_IQA_NONLINEAR_CONTRAST_EN_MASK) {
+		const struct viif_l1_nonlinear_contrast *nonlinear_contrast =
+			&arg->nonlinear_contrast;
+
+		viif_capture_write(viif_dev, REG_L1_VPRO_NLCNT_SW, 1);
+		viif_capture_write(viif_dev, REG_L1_VPRO_BLK_KNEE, nonlinear_contrast->blk_knee);
+		viif_capture_write(viif_dev, REG_L1_VPRO_WHT_KNEE, nonlinear_contrast->wht_knee);
+
+		viif_capture_write(viif_dev, REG_L1_VPRO_BLK_CONT0,
+				   nonlinear_contrast->blk_cont[0]);
+		viif_capture_write(viif_dev, REG_L1_VPRO_BLK_CONT1,
+				   nonlinear_contrast->blk_cont[1]);
+		viif_capture_write(viif_dev, REG_L1_VPRO_BLK_CONT2,
+				   nonlinear_contrast->blk_cont[2]);
+
+		viif_capture_write(viif_dev, REG_L1_VPRO_WHT_CONT0,
+				   nonlinear_contrast->wht_cont[0]);
+		viif_capture_write(viif_dev, REG_L1_VPRO_WHT_CONT1,
+				   nonlinear_contrast->wht_cont[1]);
+		viif_capture_write(viif_dev, REG_L1_VPRO_WHT_CONT2,
+				   nonlinear_contrast->wht_cont[2]);
+	} else {
+		viif_capture_write(viif_dev, REG_L1_VPRO_NLCNT_SW, 0);
+	}
+
+	/* luminance noise reduction */
+	if (arg->enable & VIIF_L1_IQA_LUM_NOISE_REDUCTION_EN_MASK) {
+		const struct viif_l1_lum_noise_reduction *lum_noise_reduction =
+			&arg->lum_noise_reduction;
+
+		viif_capture_write(viif_dev, REG_L1_VPRO_YNR_SW, 1);
+		viif_capture_write(viif_dev, REG_L1_VPRO_YNR_GAIN_MIN,
+				   lum_noise_reduction->gain_min);
+		viif_capture_write(viif_dev, REG_L1_VPRO_YNR_GAIN_MAX,
+				   lum_noise_reduction->gain_max);
+		viif_capture_write(viif_dev, REG_L1_VPRO_YNR_LIM_MIN, lum_noise_reduction->lim_min);
+		viif_capture_write(viif_dev, REG_L1_VPRO_YNR_LIM_MAX, lum_noise_reduction->lim_max);
+	} else {
+		viif_capture_write(viif_dev, REG_L1_VPRO_YNR_SW, 0);
+	}
+
+	/* edge enhancement */
+	if (arg->enable & VIIF_L1_IQA_EDGE_ENHANCEMENT_EN_MASK) {
+		const struct viif_l1_edge_enhancement *edge_enhancement = &arg->edge_enhancement;
+
+		viif_capture_write(viif_dev, REG_L1_VPRO_ETE_SW, 1);
+		viif_capture_write(viif_dev, REG_L1_VPRO_ETE_GAIN_MIN, edge_enhancement->gain_min);
+		viif_capture_write(viif_dev, REG_L1_VPRO_ETE_GAIN_MAX, edge_enhancement->gain_max);
+		viif_capture_write(viif_dev, REG_L1_VPRO_ETE_LIM_MIN, edge_enhancement->lim_min);
+		viif_capture_write(viif_dev, REG_L1_VPRO_ETE_LIM_MAX, edge_enhancement->lim_max);
+		viif_capture_write(viif_dev, REG_L1_VPRO_ETE_CORING_MIN,
+				   edge_enhancement->coring_min);
+		viif_capture_write(viif_dev, REG_L1_VPRO_ETE_CORING_MAX,
+				   edge_enhancement->coring_max);
+	} else {
+		viif_capture_write(viif_dev, REG_L1_VPRO_ETE_SW, 0);
+	}
+
+	/* UV suppression */
+	if (arg->enable & VIIF_L1_IQA_UV_SUPPRESSION_EN_MASK) {
+		const struct viif_l1_uv_suppression *uv_suppression = &arg->uv_suppression;
+
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_UVSUP_SW, 1);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_BK_SLV, uv_suppression->bk_slv);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_BK_MP, uv_suppression->bk_mp);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_BLACK, uv_suppression->black);
+
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_WH_SLV, uv_suppression->wh_slv);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_WH_MP, uv_suppression->wh_mp);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_WHITE, uv_suppression->white);
+	} else {
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_UVSUP_SW, 0);
+	}
+
+	/* coring suppression */
+	if (arg->enable & VIIF_L1_IQA_CORING_SUPPRESSION_EN_MASK) {
+		const struct viif_l1_coring_suppression *coring_suppression =
+			&arg->coring_suppression;
+
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_CORING_SW, 1);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_CORING_LV_MIN,
+				   coring_suppression->lv_min);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_CORING_LV_MAX,
+				   coring_suppression->lv_max);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_CORING_GAIN_MIN,
+				   coring_suppression->gain_min);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_CORING_GAIN_MAX,
+				   coring_suppression->gain_max);
+	} else {
+		viif_capture_write(viif_dev, REG_L1_VPRO_CSUP_CORING_SW, 0);
+	}
+
+	/* edge suppression */
+	if (arg->enable & VIIF_L1_IQA_EDGE_SUPPRESSION_EN_MASK) {
+		const struct viif_l1_edge_suppression *edge_suppression = &arg->edge_suppression;
+
+		viif_capture_write(viif_dev, REG_L1_VPRO_EDGE_SUP_SW, 1);
+		viif_capture_write(viif_dev, REG_L1_VPRO_EDGE_SUP_GAIN, edge_suppression->gain);
+		viif_capture_write(viif_dev, REG_L1_VPRO_EDGE_SUP_LIM, edge_suppression->lim);
+	} else {
+		viif_capture_write(viif_dev, REG_L1_VPRO_EDGE_SUP_SW, 0);
+	}
+
+	/* color level */
+	if (arg->enable & VIIF_L1_IQA_COLOR_LEVEL_EN_MASK) {
+		const struct viif_l1_color_level *color_level = &arg->color_level;
+
+		viif_capture_write(viif_dev, REG_L1_VPRO_CB_GAIN, color_level->cb_gain);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CR_GAIN, color_level->cr_gain);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CBR_MGAIN_MIN, color_level->cbr_mgain_min);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CB_P_GAIN_MAX, color_level->cbp_gain_max);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CB_M_GAIN_MAX, color_level->cbm_gain_max);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CR_P_GAIN_MAX, color_level->crp_gain_max);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CR_M_GAIN_MAX, color_level->crm_gain_max);
+	} else {
+		/* disable */
+		viif_capture_write(viif_dev, REG_L1_VPRO_CB_GAIN, 1024U);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CR_GAIN, 1024U);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CBR_MGAIN_MIN, 1024U);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CB_P_GAIN_MAX, 0U);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CB_M_GAIN_MAX, 0U);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CR_P_GAIN_MAX, 0U);
+		viif_capture_write(viif_dev, REG_L1_VPRO_CR_M_GAIN_MAX, 0U);
+	}
+
+	/* color noise reduction */
+	viif_capture_write(viif_dev, REG_L1_VPRO_CNR_SW,
+			   arg->enable & VIIF_L1_IQA_COLOR_NOISE_REDUCTION_EN_MASK ? 1 : 0);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static inline u32 pack_weight(const u32 *vec)
+{
+	return (vec[0] << 14) | (vec[1] << 12) | (vec[2] << 10) | (vec[3] << 8) | (vec[4] << 6) |
+	       (vec[5] << 4) | (vec[6] << 2U) | (vec[7]);
+}
+
+static void viif_l1_set_avg_lum_generation(struct viif_device *viif_dev,
+					   const struct viif_l1_avg_lum_generation_config *arg)
+{
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	/* disabling aggregation */
+	if (!arg->enable) {
+		viif_capture_write(viif_dev, REG_L1_AEXP_ON, 0);
+		goto op_done;
+	}
+
+	/* enabling aggregation */
+	viif_capture_write(viif_dev, REG_L1_AEXP_ON, 1);
+	viif_capture_write(viif_dev, REG_L1_AEXP_START_X, arg->aexp_start_x);
+	viif_capture_write(viif_dev, REG_L1_AEXP_START_Y, arg->aexp_start_y);
+	viif_capture_write(viif_dev, REG_L1_AEXP_BLOCK_WIDTH, arg->aexp_block_width);
+	viif_capture_write(viif_dev, REG_L1_AEXP_BLOCK_HEIGHT, arg->aexp_block_height);
+
+	viif_capture_write(viif_dev, REG_L1_AEXP_WEIGHT_0, pack_weight(arg->aexp_weight[0]));
+	viif_capture_write(viif_dev, REG_L1_AEXP_WEIGHT_1, pack_weight(arg->aexp_weight[1]));
+	viif_capture_write(viif_dev, REG_L1_AEXP_WEIGHT_2, pack_weight(arg->aexp_weight[2]));
+	viif_capture_write(viif_dev, REG_L1_AEXP_WEIGHT_3, pack_weight(arg->aexp_weight[3]));
+	viif_capture_write(viif_dev, REG_L1_AEXP_WEIGHT_3, pack_weight(arg->aexp_weight[4]));
+	viif_capture_write(viif_dev, REG_L1_AEXP_WEIGHT_4, pack_weight(arg->aexp_weight[5]));
+	viif_capture_write(viif_dev, REG_L1_AEXP_WEIGHT_5, pack_weight(arg->aexp_weight[6]));
+	viif_capture_write(viif_dev, REG_L1_AEXP_WEIGHT_7, pack_weight(arg->aexp_weight[7]));
+
+	viif_capture_write(viif_dev, REG_L1_AEXP_SATUR_RATIO, arg->aexp_satur_ratio);
+	viif_capture_write(viif_dev, REG_L1_AEXP_BLACK_RATIO, arg->aexp_black_ratio);
+	viif_capture_write(viif_dev, REG_L1_AEXP_SATUR_LEVEL, arg->aexp_satur_level);
+
+	viif_capture_write(viif_dev, REG_L1_AEXP_AVE4LINESY0, arg->aexp_ave4linesy[0]);
+	viif_capture_write(viif_dev, REG_L1_AEXP_AVE4LINESY1, arg->aexp_ave4linesy[1]);
+	viif_capture_write(viif_dev, REG_L1_AEXP_AVE4LINESY2, arg->aexp_ave4linesy[2]);
+	viif_capture_write(viif_dev, REG_L1_AEXP_AVE4LINESY3, arg->aexp_ave4linesy[3]);
+
+op_done:
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static void undist_table_transmission(struct viif_device *viif_dev, dma_addr_t write_g,
+				      dma_addr_t read_b, dma_addr_t read_g, dma_addr_t read_r,
+				      u32 size)
+{
+	u32 val = 0U;
+
+	if (read_b) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L2_UNDIST_RD_B),
+				   (u32)read_b);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L2_UNDIST_RD_B), size);
+		val |= MASK_VDM_T_ENABLE_L2_UNDIST_RD_B;
+	}
+	if (read_g) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L2_UNDIST_RD_G),
+				   (u32)read_g);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L2_UNDIST_RD_G), size);
+		val |= MASK_VDM_T_ENABLE_L2_UNDIST_RD_G;
+	}
+	if (read_r) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L2_UNDIST_RD_R),
+				   (u32)read_r);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L2_UNDIST_RD_R), size);
+		val |= MASK_VDM_T_ENABLE_L2_UNDIST_RD_R;
+	}
+	if (write_g) {
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(IDX_TPORT_L2_UNDIST_WR_G),
+				   (u32)write_g);
+		viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(IDX_TPORT_L2_UNDIST_WR_G), size);
+		val |= MASK_VDM_T_ENABLE_L2_UNDIST_WR_G;
+	}
+
+	if (val)
+		viif_config_vdm_tgroup(viif_dev, IDX_TGROUP_L2_UNDIST);
+
+	val |= viif_capture_read(viif_dev, REG_VDM_T_ENABLE) & ~MASK_VDM_T_ENABLE_L2_UNDIST;
+	viif_capture_write(viif_dev, REG_VDM_T_ENABLE, val);
+}
+
+static void undist_setup(struct viif_device *viif_dev, const struct viif_l2_undist *param)
+{
+	u32 val;
+	unsigned int i;
+
+	/* Undist through mode */
+	if (param->through_mode) {
+		/* Enable through mode */
+		viif_capture_write(viif_dev, REG_L2_MODE, 1);
+		return;
+	}
+
+	/* Undist operation */
+	val = (param->roi_mode[0] << 1U) | (param->roi_mode[1] << 3U);
+	viif_capture_write(viif_dev, REG_L2_MODE, val);
+	val = (u32)param->sensor_crop_ofs_h & GENMASK(13, 0);
+	viif_capture_write(viif_dev, REG_L2_SENSOR_CROP_OFS_H, val);
+	val = (u32)param->sensor_crop_ofs_v & GENMASK(12, 0);
+	viif_capture_write(viif_dev, REG_L2_SENSOR_CROP_OFS_V, val);
+	viif_capture_write(viif_dev, REG_L2_NORM_SCALE, param->norm_scale);
+	viif_capture_write(viif_dev, REG_L2_VALID_R_NORM2_POLY, param->valid_r_norm2_poly);
+	viif_capture_write(viif_dev, REG_L2_VALID_R_NORM2_GRID, param->valid_r_norm2_grid);
+	viif_capture_write(viif_dev, REG_L2_ROI_WRITE_AREA_DELTA(0),
+			   param->roi_write_area_delta[0]);
+	viif_capture_write(viif_dev, REG_L2_ROI_WRITE_AREA_DELTA(1),
+			   param->roi_write_area_delta[1]);
+
+	for (i = 0; i < VIIF_L2_UNDIST_POLY_NUM; i++) {
+		val = (u32)param->poly_write_g_coef[i];
+		viif_capture_write(viif_dev, REG_L2_POLY10_WRITE_G_COEF(i), val);
+		val = (u32)param->poly_read_b_coef[i];
+		viif_capture_write(viif_dev, REG_L2_POLY10_READ_B_COEF(i), val);
+		val = (u32)param->poly_read_g_coef[i];
+		viif_capture_write(viif_dev, REG_L2_POLY10_READ_G_COEF(i), val);
+		val = (u32)param->poly_read_r_coef[i];
+		viif_capture_write(viif_dev, REG_L2_POLY10_READ_R_COEF(i), val);
+	}
+	viif_capture_write(viif_dev, REG_L2_GRID_NODE_NUM_H, param->grid_node_num_h);
+	viif_capture_write(viif_dev, REG_L2_GRID_NODE_NUM_V, param->grid_node_num_v);
+	viif_capture_write(viif_dev, REG_L2_GRID_PATCH_HSIZE_INV, param->grid_patch_hsize_inv);
+	viif_capture_write(viif_dev, REG_L2_GRID_PATCH_VSIZE_INV, param->grid_patch_vsize_inv);
+}
+
+static void viif_l2_set_undist(struct viif_device *viif_dev,
+			       const struct viif_l2_undist_config *arg)
+{
+	dma_addr_t table_write_g = 0;
+	dma_addr_t table_read_b = 0;
+	dma_addr_t table_read_g = 0;
+	dma_addr_t table_read_r = 0;
+	unsigned long irqflags;
+
+	if (arg->param.roi_mode[0] != VIIF_L2_UNDIST_POLY ||
+	    arg->param.roi_mode[1] != VIIF_L2_UNDIST_POLY) {
+		memcpy(viif_dev->tables->undist_write_g, arg->write_g, arg->size);
+		memcpy(viif_dev->tables->undist_read_b, arg->read_b, arg->size);
+		memcpy(viif_dev->tables->undist_read_g, arg->read_g, arg->size);
+		memcpy(viif_dev->tables->undist_read_r, arg->read_r, arg->size);
+
+		table_write_g = (uintptr_t)viif_dev->tables_dma->undist_write_g;
+		table_read_b = (uintptr_t)viif_dev->tables_dma->undist_read_b;
+		table_read_g = (uintptr_t)viif_dev->tables_dma->undist_read_g;
+		table_read_r = (uintptr_t)viif_dev->tables_dma->undist_read_r;
+	}
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	undist_table_transmission(viif_dev, table_write_g, table_read_b, table_read_g, table_read_r,
+				  arg->size);
+
+	undist_setup(viif_dev, &arg->param);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+int visconti_viif_l2_undist_through(struct viif_device *viif_dev)
+{
+	struct viif_l2_undist undist = { 0 };
+
+	undist.through_mode = VIIF_ENABLE;
+	undist.sensor_crop_ofs_h =
+		1 - FIELD_GET(0x1FFF, viif_capture_read(viif_dev, REG_L2_SENSOR_CROP_HSIZE));
+	undist.sensor_crop_ofs_v =
+		1 - FIELD_GET(0x0FFF, viif_capture_read(viif_dev, REG_L2_SENSOR_CROP_VSIZE));
+	undist.grid_node_num_h = 16;
+	undist.grid_node_num_v = 16;
+
+	undist_setup(viif_dev, &undist);
+
+	return 0;
+}
+
+static void viif_l2_set_roi_wrap(struct viif_device *viif_dev, const struct viif_l2_roi_config *roi)
+{
+	unsigned long irqflags;
+
+	/* update ROI parameter */
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+	visconti_viif_l2_set_roi(viif_dev, roi);
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+
+	/* reflect change to pad::compose_rect */
+	visconti_viif_isp_set_compose_rect(viif_dev, roi);
+}
+
+struct viif_l2_gamma_table {
+	dma_addr_t table[VIIF_L2_GAMMA_TABLE_CH_NUM];
+};
+
+static void l2_gamma_table_transmission(struct viif_device *viif_dev, u32 post_id,
+					const struct viif_l2_gamma_table *gamma_table)
+{
+	u32 vdm_enable = 0U;
+	u32 i;
+
+	/* 0: LUT0-G/Y, 1: LUT1-G/Y, 2: LUT0-B/U, 3: LUT1-B/U, 4: LUT0-R/V, 5: LUT1-R/V */
+	for (i = 0; i < VIIF_L2_GAMMA_TABLE_CH_NUM; i++) {
+		if (gamma_table->table[i]) {
+			int idx = IDX_TPORT_L2_GAMMA_LUT(post_id, i);
+
+			viif_capture_write(viif_dev, REG_VDM_TPORT_X_STADR(idx),
+					   (u32)gamma_table->table[i]);
+			viif_capture_write(viif_dev, REG_VDM_TPORT_X_SIZE(idx),
+					   VIIF_L2_GAMMA_TABLE_BYTES);
+			vdm_enable |= MASK_VDM_T_ENABLE_L2_GAMMA(post_id, i);
+		}
+	}
+	if (vdm_enable)
+		viif_config_vdm_tgroup(viif_dev, IDX_TGROUP_L2_GAMMA_LUT(post_id));
+
+	vdm_enable |= viif_capture_read(viif_dev, REG_VDM_T_ENABLE) &
+		      ~MASK_VDM_T_ENABLE_L2_GAMMA_ALL(post_id);
+
+	viif_capture_write(viif_dev, REG_VDM_T_ENABLE, vdm_enable);
+}
+
+static void viif_l2_set_gamma(struct viif_device *viif_dev, int pathid,
+			      const struct viif_l2_gamma_config *l2_gamma)
+{
+	struct viif_l2_gamma_table dma_table = { 0 };
+	int postid = (pathid == CAPTURE_PATH_MAIN_POST0) ? VIIF_L2ISP_POST_0 : VIIF_L2ISP_POST_1;
+	unsigned long irqflags;
+	int table_en;
+	u32 val;
+	int i;
+
+	table_en = l2_gamma->table_en;
+	for (i = 0; i < 6; i++) {
+		if (table_en & BIT(i)) {
+			memcpy(viif_dev->tables->l2_gamma_table[pathid][i], l2_gamma->table[i],
+			       VIIF_L2_GAMMA_TABLE_BYTES);
+			dma_table.table[i] =
+				(dma_addr_t)(uintptr_t)
+					viif_dev->tables_dma->l2_gamma_table[pathid][i];
+		}
+	}
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	l2_gamma_table_transmission(viif_dev, postid, &dma_table);
+
+	val = (l2_gamma->vsplit << 16U) | (l2_gamma->mode << 4U) | (table_en != 0 ? 1 : 0);
+	viif_capture_write(viif_dev, REG_L2_POST_X_GAMMA_M(postid), val);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static const struct viif_l1_input_mode_config defval_l1_set_input_mode = {
+	.mode = VIIF_L1_INPUT_HDR,
+};
+
+static const struct viif_l1_rgb_to_y_coef_config defval_l1_set_rgb_to_y_coef = {
+	/* ITU-R BT.601 */
+	.coef_r = 0x4C8C,
+	.coef_g = 0x9644,
+	.coef_b = 0x1D30,
+};
+
+static const struct viif_l1_ag_mode_config defval_l1_set_ag_mode = { 0 };
+
+static const struct viif_l1_ag_config defval_l1_set_ag = { 0 };
+
+static const struct viif_l1_hdre_config defval_l1_set_hdre = {
+	.hdre_src_point[0] = 0x3FFF,
+	.hdre_dst_max_val = 0xFFFFFF,
+};
+
+static const struct viif_l1_img_extraction_config defval_l1_set_img_extraction = {
+	.input_black_gr = 256,
+	.input_black_r = 256,
+	.input_black_b = 256,
+	.input_black_gb = 256,
+};
+
+static const struct viif_l1_dpc_config defval_l1_set_dpc = { 0 };
+
+static const struct viif_l1_preset_white_balance_config defval_l1_set_preset_white_balance = {
+	.dstmaxval = 0x0FFF,
+	.param_h = {
+		.gain_gr = 0x4000,
+		.gain_r  = 0x4000,
+		.gain_b  = 0x4000,
+		.gain_gb = 0x4000,
+	},
+	.param_m = {
+		.gain_gr = 0x4000,
+		.gain_r  = 0x4000,
+		.gain_b  = 0x4000,
+		.gain_gb = 0x4000,
+	},
+	.param_l = {
+		.gain_gr = 0x4000,
+		.gain_r  = 0x4000,
+		.gain_b  = 0x4000,
+		.gain_gb = 0x4000,
+	},
+};
+
+static const
+struct viif_l1_raw_color_noise_reduction_config defval_l1_set_raw_color_noise_reduction = {
+	.param_h = {
+		.rcnr_cnf_clip_gain_r = 3,
+		.rcnr_cnf_clip_gain_g = 2,
+		.rcnr_cnf_clip_gain_b = 3,
+		.rcnr_merge_black = 0x20,
+		.rcnr_merge_mindiv = 4,
+		.rcnr_anf_blend_ag0 = 1,
+		.rcnr_anf_blend_ag1 = 2,
+		.rcnr_anf_blend_ag2 = 2,
+		.rcnr_lpf_threshold = 8,
+	},
+	.param_m = {
+		.rcnr_cnf_clip_gain_r = 3,
+		.rcnr_cnf_clip_gain_g = 2,
+		.rcnr_cnf_clip_gain_b = 3,
+		.rcnr_merge_black = 0x20,
+		.rcnr_merge_mindiv = 4,
+		.rcnr_anf_blend_ag0 = 1,
+		.rcnr_anf_blend_ag1 = 2,
+		.rcnr_anf_blend_ag2 = 2,
+		.rcnr_lpf_threshold = 8,
+	},
+	.param_l = {
+		.rcnr_cnf_clip_gain_r = 3,
+		.rcnr_cnf_clip_gain_g = 2,
+		.rcnr_cnf_clip_gain_b = 3,
+		.rcnr_merge_black = 0x20,
+		.rcnr_merge_mindiv = 4,
+		.rcnr_anf_blend_ag0 = 1,
+		.rcnr_anf_blend_ag1 = 2,
+		.rcnr_anf_blend_ag2 = 2,
+		.rcnr_lpf_threshold = 8,
+	},
+};
+
+static const struct viif_l1_hdrs_config defval_l1_set_hdrs = {
+	.hdrs_hdr_mode = 1,
+	.hdrs_hdr_ratio_m = 0x10000,
+	.hdrs_hdr_ratio_l = 0x400000,
+	.hdrs_hdr_ratio_e = 0x400,
+	.hdrs_dg_h = 0x400,
+	.hdrs_dg_m = 0x400,
+	.hdrs_dg_l = 0x400,
+	.hdrs_dg_e = 0x400,
+	.hdrs_blendend_h = 0xFA0,
+	.hdrs_blendend_m = 0xFA0,
+	.hdrs_blendend_e = 0xFA0,
+	.hdrs_blendbeg_h = 0x12C,
+	.hdrs_blendbeg_m = 0x12C,
+	.hdrs_blendbeg_e = 0x12C,
+	.hdrs_dst_max_val = 0xFFFFFF,
+};
+
+static const struct viif_l1_black_level_correction_config defval_l1_set_black_level_correction = {
+	.srcblacklevel_gr = 0x40,
+	.srcblacklevel_r = 0x40,
+	.srcblacklevel_b = 0x40,
+	.srcblacklevel_gb = 0x40,
+	.mulval_gr = 0x40000,
+	.mulval_r = 0x40000,
+	.mulval_b = 0x40000,
+	.mulval_gb = 0x40000,
+	.dstmaxval = 0xFFFFFF,
+};
+
+static const struct viif_l1_lsc_config defval_l1_set_lsc = { 0 };
+
+static const struct viif_l1_main_process_config defval_l1_set_main_process = {
+	.damp_lsbsel = 0x8,
+	.demosaic_mode = 1,
+	.colormat_enable = 0,
+	.dst_maxval = 0xFFFFFF,
+};
+
+static const struct viif_l1_awb_config defval_l1_set_awb = {
+	.enable = 0,
+	.awhb_wbmrg = 256,
+	.awhb_wbmgg = 256,
+	.awhb_wbmbg = 256,
+};
+
+static const u32 defval_l1_lock_awb_gain;
+
+static const struct viif_l1_hdrc_config
+	defval_l1_set_hdrc = { .enable = 1,
+			       .param = {
+				       .hdrc_ratio = 0x0E + VIIF_L1_HDRC_RATIO_OFFSET,
+				       .hdrc_pt_ratio = 7,
+				       .hdrc_pt_sat = 0xFFC0,
+				       .hdrc_tn_type = 1,
+			       } };
+
+static const struct viif_l1_hdrc_ltm_config defval_l1_set_hdrc_ltm = {
+	.tnp_max = 0x3FFFFF,
+	.tnp_mag = 0x40,
+	.tnp_fil = { 0x88, 0x84, 0x7A, 0x6A, 0x54 },
+};
+
+static const struct viif_l1_gamma_config defval_l1_set_gamma = {
+	.enable = 1,
+	.param = {
+		.gam_p = {
+			0x02F, 0x01B, 0x02A, 0x023, 0x020, 0x037, 0x031, 0x057, 0x04D, 0x088,
+			0x078, 0x0D6, 0x0BD, 0x14F, 0x12A, 0x20D, 0x1D3, 0x1AB, 0x18D, 0x2DC,
+			0x29E, 0x271, 0x47C, 0x41B, 0x3D4, 0x70A, 0x672, 0x601, 0xB0C, 0xA1D,
+			0x96C, 0x8E2, 0x874, 0xFDD, 0xEC9, 0xDF2, 0xD42, 0xCB1, 0xC35, 0xBC9,
+			0xB6A, 0xB16, 0xACB, 0xA86},
+		.blkadj = 0x1000,
+	},
+};
+
+static const struct viif_l1_img_quality_adjustment_config defval_l1_set_img_quality_adjustment = {
+	.enable = 0,
+	.coef_cb = 0x9078,
+	.coef_cr = 0xB699,
+	.brightness = 0,
+	.linear_contrast = 128,
+};
+
+static const struct viif_l1_avg_lum_generation_config defval_l1_set_avg_lum_generation = {
+	.enable = 0
+};
+
+static const struct viif_l2_undist_config defval_l2_set_undist = { .param = {
+									   .through_mode = 1,
+									   .roi_mode = { 0, 0 },
+									   .grid_node_num_h = 0x10,
+									   .grid_node_num_v = 0x10,
+								   } };
+
+static const struct viif_l2_roi_config defval_l2_set_roi = {
+	.roi_num = 1,
+	.roi_scale = { 65536, 65536 },
+	.roi_scale_inv = { 65536, 65536 },
+	.corrected_wo_scale_hsize = { 0x80, 0x80 },
+	.corrected_hsize = { 0x80, 0x80 },
+	.corrected_wo_scale_vsize = { 0x80, 0x80 },
+	.corrected_vsize = { 0x80, 0x80 },
+};
+
+static const struct viif_l2_gamma_config defval_l2_set_gamma = { 0 };
+
+static void viif_apply_default_parameter(struct viif_device *viif_dev)
+{
+	viif_l1_set_input_mode(viif_dev, &defval_l1_set_input_mode);
+	viif_l1_set_rgb_to_y_coef(viif_dev, &defval_l1_set_rgb_to_y_coef);
+	viif_l1_set_ag_mode(viif_dev, &defval_l1_set_ag_mode);
+	viif_l1_set_ag(viif_dev, &defval_l1_set_ag);
+	viif_l1_set_hdre(viif_dev, &defval_l1_set_hdre);
+	viif_l1_set_img_extraction(viif_dev, &defval_l1_set_img_extraction);
+	viif_l1_set_dpc(viif_dev, &defval_l1_set_dpc);
+	viif_l1_set_preset_white_balance(viif_dev, &defval_l1_set_preset_white_balance);
+	viif_l1_set_raw_color_noise_reduction(viif_dev, &defval_l1_set_raw_color_noise_reduction);
+	viif_l1_set_hdrs(viif_dev, &defval_l1_set_hdrs);
+	viif_l1_set_black_level_correction(viif_dev, &defval_l1_set_black_level_correction);
+	viif_l1_set_lsc(viif_dev, &defval_l1_set_lsc);
+	viif_l1_set_main_process(viif_dev, &defval_l1_set_main_process);
+	viif_l1_set_awb(viif_dev, &defval_l1_set_awb);
+	viif_l1_lock_awb_gain(viif_dev, &defval_l1_lock_awb_gain);
+	viif_l1_set_hdrc(viif_dev, &defval_l1_set_hdrc);
+	viif_l1_set_hdrc_ltm(viif_dev, &defval_l1_set_hdrc_ltm);
+	viif_l1_set_gamma(viif_dev, &defval_l1_set_gamma);
+	viif_l1_set_img_quality_adjustment(viif_dev, &defval_l1_set_img_quality_adjustment);
+	viif_l1_set_avg_lum_generation(viif_dev, &defval_l1_set_avg_lum_generation);
+	viif_l2_set_undist(viif_dev, &defval_l2_set_undist);
+	viif_l2_set_roi_wrap(viif_dev, &defval_l2_set_roi);
+	viif_l2_set_gamma(viif_dev, CAPTURE_PATH_MAIN_POST0, &defval_l2_set_gamma);
+	viif_l2_set_gamma(viif_dev, CAPTURE_PATH_MAIN_POST1, &defval_l2_set_gamma);
+}
+
+/*=======================================================================*/
+/* parameter buffer streaming interface */
+/*=======================================================================*/
+struct viif_buffer {
+	struct vb2_v4l2_buffer vb;
+	struct list_head queue;
+};
+
+static bool viif_params_get_buffer(struct params_dev *params_dev, struct viif_buffer **buf,
+				   struct visconti_viif_isp_config **cfg)
+{
+	if (list_empty(&params_dev->params_queue))
+		return false;
+
+	*buf = list_first_entry(&params_dev->params_queue, struct viif_buffer, queue);
+	*cfg = vb2_plane_vaddr(&(*buf)->vb.vb2_buf, 0);
+
+	return true;
+}
+
+static int viif_apply_queued_parameter(struct viif_device *viif_dev, bool initial_cfg)
+{
+	struct params_dev *params_dev = &viif_dev->params_dev;
+	struct visconti_viif_isp_config *new_params;
+	struct viif_buffer *cur_buf;
+	int ret = 0;
+
+	spin_lock(&params_dev->params_lock);
+
+	if (!viif_params_get_buffer(params_dev, &cur_buf, &new_params)) {
+		ret = 1;
+		goto unlock;
+	}
+
+	/* evaluate new_params */
+	if (initial_cfg) {
+		if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_INPUT_MODE)
+			viif_l1_set_input_mode(viif_dev, &new_params->l1_input_mode);
+	}
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_RGB_TO_Y_COEF)
+		viif_l1_set_rgb_to_y_coef(viif_dev, &new_params->l1_rgb_to_y_coef);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_AG_MODE)
+		viif_l1_set_ag_mode(viif_dev, &new_params->l1_ag_mode);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_AG)
+		viif_l1_set_ag(viif_dev, &new_params->l1_ag);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_HDRE)
+		viif_l1_set_hdre(viif_dev, &new_params->l1_hdre);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_IMG_EXTRACTION)
+		viif_l1_set_img_extraction(viif_dev, &new_params->l1_img_extraction);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_DPC)
+		viif_l1_set_dpc(viif_dev, &new_params->l1_dpc);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_PRESET_WHITE_BALANCE)
+		viif_l1_set_preset_white_balance(viif_dev, &new_params->l1_preset_white_balance);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_RAW_COLOR_NOISE_REDUCTION)
+		viif_l1_set_raw_color_noise_reduction(viif_dev,
+						      &new_params->l1_raw_color_noise_reduction);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_HDRS)
+		viif_l1_set_hdrs(viif_dev, &new_params->l1_hdrs);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_BLACK_LEVEL_CORRECTION)
+		viif_l1_set_black_level_correction(viif_dev,
+						   &new_params->l1_black_level_correction);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_LSC)
+		viif_l1_set_lsc(viif_dev, &new_params->l1_lsc);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_MAIN_PROCESS)
+		viif_l1_set_main_process(viif_dev, &new_params->l1_main_process);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_AWB)
+		viif_l1_set_awb(viif_dev, &new_params->l1_awb);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_LOCK_AWB_GAIN)
+		viif_l1_lock_awb_gain(viif_dev, &new_params->lock_awb_gain);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_HDRC)
+		viif_l1_set_hdrc(viif_dev, &new_params->l1_hdrc);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_HDRC_LTM)
+		viif_l1_set_hdrc_ltm(viif_dev, &new_params->l1_hdrc_ltm);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_GAMMA)
+		viif_l1_set_gamma(viif_dev, &new_params->l1_gamma);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_IMG_QUALITY_ADJUSTMENT)
+		viif_l1_set_img_quality_adjustment(viif_dev,
+						   &new_params->l1_img_quality_adjustment);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L1_AVG_LUM_GENERATION)
+		viif_l1_set_avg_lum_generation(viif_dev, &new_params->l1_avg_lum_generation);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L2_UNDIST)
+		viif_l2_set_undist(viif_dev, &new_params->l2_undist);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L2_ROI)
+		viif_l2_set_roi_wrap(viif_dev, &new_params->l2_roi);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L2_GAMMA_POST0)
+		viif_l2_set_gamma(viif_dev, CAPTURE_PATH_MAIN_POST0, &new_params->l2_gamma_post0);
+	if (new_params->update_cfg & VISCONTI_VIIF_CFG_ISP_L2_GAMMA_POST1)
+		viif_l2_set_gamma(viif_dev, CAPTURE_PATH_MAIN_POST1, &new_params->l2_gamma_post1);
+
+	/* release buffer */
+	list_del(&cur_buf->queue);
+	cur_buf->vb.sequence = 0;
+	vb2_buffer_done(&cur_buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
+
+unlock:
+	spin_unlock(&params_dev->params_lock);
+	return ret;
+}
+
+void visconti_viif_params_isr(struct viif_device *viif_dev)
+{
+	viif_apply_queued_parameter(viif_dev, false);
+}
+
+void visconti_viif_params_eval_queue(struct viif_device *viif_dev)
+{
+	if (viif_apply_queued_parameter(viif_dev, true))
+		viif_apply_default_parameter(viif_dev);
+}
+
+static int viif_params_enum_fmt_meta_out(struct file *file, void *priv, struct v4l2_fmtdesc *f)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (f->index > 0 || f->type != vdev->queue->type)
+		return -EINVAL;
+
+	f->pixelformat = V4L2_META_FMT_VISCONTI_VIIF_PARAMS;
+
+	return 0;
+}
+
+static int viif_params_g_fmt_meta_out(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct video_device *vdev = video_devdata(file);
+	struct v4l2_meta_format *meta = &f->fmt.meta;
+
+	if (f->type != vdev->queue->type)
+		return -EINVAL;
+
+	memset(meta, 0, sizeof(*meta));
+	meta->dataformat = V4L2_META_FMT_VISCONTI_VIIF_PARAMS;
+	meta->buffersize = sizeof(struct visconti_viif_isp_config);
+
+	return 0;
+}
+
+static int viif_params_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	strscpy(cap->driver, VIIF_DRIVER_NAME, sizeof(cap->driver));
+	strscpy(cap->card, vdev->name, sizeof(cap->card));
+	strscpy(cap->bus_info, VIIF_BUS_INFO_BASE "-0", sizeof(cap->bus_info));
+
+	return 0;
+}
+
+static const struct v4l2_ioctl_ops viif_params_ioctl = {
+	.vidioc_reqbufs = vb2_ioctl_reqbufs,
+	.vidioc_querybuf = vb2_ioctl_querybuf,
+	.vidioc_create_bufs = vb2_ioctl_create_bufs,
+	.vidioc_qbuf = vb2_ioctl_qbuf,
+	.vidioc_dqbuf = vb2_ioctl_dqbuf,
+	.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+	.vidioc_expbuf = vb2_ioctl_expbuf,
+	.vidioc_streamon = vb2_ioctl_streamon,
+	.vidioc_streamoff = vb2_ioctl_streamoff,
+	.vidioc_enum_fmt_meta_out = viif_params_enum_fmt_meta_out,
+	.vidioc_g_fmt_meta_out = viif_params_g_fmt_meta_out,
+	.vidioc_s_fmt_meta_out = viif_params_g_fmt_meta_out,
+	.vidioc_try_fmt_meta_out = viif_params_g_fmt_meta_out,
+	.vidioc_querycap = viif_params_querycap,
+	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+static const struct v4l2_file_operations viif_params_fops = { .mmap = vb2_fop_mmap,
+							      .unlocked_ioctl = video_ioctl2,
+							      .poll = vb2_fop_poll,
+							      .open = v4l2_fh_open,
+							      .release = vb2_fop_release };
+
+static int viif_params_vb2_queue_setup(struct vb2_queue *q, unsigned int *num_buffers,
+				       unsigned int *num_planes, unsigned int sizes[],
+				       struct device *alloc_devs[])
+{
+	*num_buffers = clamp_t(u32, *num_buffers, 2, 8);
+	*num_planes = 1;
+	sizes[0] = sizeof(struct visconti_viif_isp_config);
+	return 0;
+}
+
+static inline struct viif_buffer *vb2_to_viif(struct vb2_v4l2_buffer *vbuf)
+{
+	return container_of(vbuf, struct viif_buffer, vb);
+}
+
+static inline struct params_dev *vb2queue_to_paramsdev(struct vb2_queue *vq)
+{
+	return (struct params_dev *)vb2_get_drv_priv(vq);
+}
+
+static void viif_params_vb2_buf_queue(struct vb2_buffer *vb)
+{
+	struct params_dev *params_dev = vb2queue_to_paramsdev(vb->vb2_queue);
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct viif_buffer *buf = vb2_to_viif(vbuf);
+
+	spin_lock_irq(&params_dev->params_lock);
+	list_add_tail(&buf->queue, &params_dev->params_queue);
+	spin_unlock_irq(&params_dev->params_lock);
+}
+
+static int viif_params_vb2_buf_prepare(struct vb2_buffer *vb)
+{
+	if (vb2_plane_size(vb, 0) < sizeof(struct visconti_viif_isp_config))
+		return -EINVAL;
+
+	vb2_set_plane_payload(vb, 0, sizeof(struct visconti_viif_isp_config));
+	return 0;
+}
+
+static int viif_params_vb2_start_streaming(struct vb2_queue *q, unsigned int arg)
+{
+	return 0;
+}
+
+static void viif_params_vb2_stop_streaming(struct vb2_queue *q)
+{
+	struct params_dev *params_dev = vb2queue_to_paramsdev(q);
+	struct viif_buffer *buf;
+	LIST_HEAD(tmp_list);
+
+	spin_lock_irq(&params_dev->params_lock);
+	list_splice_init(&params_dev->params_queue, &tmp_list);
+	spin_unlock_irq(&params_dev->params_lock);
+
+	list_for_each_entry(buf, &tmp_list, queue)
+		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+}
+
+static const struct vb2_ops viif_params_vb2_ops = {
+	.queue_setup = viif_params_vb2_queue_setup,
+	.wait_prepare = vb2_ops_wait_prepare,
+	.wait_finish = vb2_ops_wait_finish,
+	.buf_queue = viif_params_vb2_buf_queue,
+	.buf_prepare = viif_params_vb2_buf_prepare,
+	.start_streaming = viif_params_vb2_start_streaming,
+	.stop_streaming = viif_params_vb2_stop_streaming,
+};
+
+int visconti_viif_params_register(struct viif_device *viif_dev)
+{
+	struct params_dev *params_dev = &viif_dev->params_dev;
+	struct video_device *vdev = &params_dev->vdev;
+	struct vb2_queue *q = &params_dev->vb2_vq;
+	int ret;
+
+	mutex_init(&params_dev->vlock);
+	INIT_LIST_HEAD(&params_dev->params_queue);
+	spin_lock_init(&params_dev->params_lock);
+
+	strscpy(vdev->name, "viif_params", sizeof(vdev->name));
+
+	/* Register the video device */
+	video_set_drvdata(vdev, params_dev);
+	vdev->ioctl_ops = &viif_params_ioctl;
+	vdev->fops = &viif_params_fops;
+	vdev->release = video_device_release_empty;
+	vdev->lock = &params_dev->vlock;
+	vdev->v4l2_dev = &viif_dev->v4l2_dev;
+	vdev->queue = &params_dev->vb2_vq;
+	vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_META_OUTPUT;
+	vdev->vfl_dir = VFL_DIR_TX;
+
+	/* Initialize vb2 queue */
+	q->type = V4L2_BUF_TYPE_META_OUTPUT;
+	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+	q->drv_priv = params_dev;
+	q->ops = &viif_params_vb2_ops;
+	q->mem_ops = &vb2_vmalloc_memops;
+	q->buf_struct_size = sizeof(struct viif_buffer);
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	q->lock = &params_dev->vlock;
+	q->dev = viif_dev->v4l2_dev.dev;
+
+	ret = vb2_queue_init(q);
+	if (ret)
+		return ret;
+
+	params_dev->params_pad.flags = MEDIA_PAD_FL_SOURCE;
+	ret = media_entity_pads_init(&vdev->entity, VIIF_PARAMS_PAD_NUM, &params_dev->params_pad);
+	if (ret)
+		goto error;
+
+	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+	if (ret) {
+		dev_err(viif_dev->v4l2_dev.dev, "video_register_device failed: %d\n", ret);
+		goto error;
+	}
+
+	return 0;
+
+error:
+	media_entity_cleanup(&vdev->entity);
+	mutex_destroy(&params_dev->vlock);
+
+	return ret;
+}
+
+void visconti_viif_params_unregister(struct viif_device *viif_dev)
+{
+	struct params_dev *params = &viif_dev->params_dev;
+	struct video_device *vdev = &params->vdev;
+
+	if (!video_is_registered(vdev))
+		return;
+
+	vb2_video_unregister_device(vdev);
+	media_entity_cleanup(&vdev->entity);
+	mutex_destroy(&params->vlock);
+}
diff --git a/drivers/media/platform/toshiba/visconti/viif_params.h b/drivers/media/platform/toshiba/visconti/viif_params.h
new file mode 100644
index 0000000000..609c651c33
--- /dev/null
+++ b/drivers/media/platform/toshiba/visconti/viif_params.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
+/* Toshiba Visconti Video Capture Support
+ *
+ * (C) Copyright 2023 TOSHIBA CORPORATION
+ * (C) Copyright 2023 Toshiba Electronic Devices & Storage Corporation
+ */
+
+#ifndef VIIF_PARAMS_H
+#define VIIF_PARAMS_H
+
+struct viif_device;
+
+void visconti_viif_params_eval_queue(struct viif_device *viif_dev);
+void visconti_viif_params_isr(struct viif_device *viif_dev);
+int visconti_viif_params_register(struct viif_device *viif_dev);
+void visconti_viif_params_unregister(struct viif_device *viif_dev);
+
+int visconti_viif_l2_undist_through(struct viif_device *viif_dev);
+#endif /* VIIF_PARAMS_H */
diff --git a/drivers/media/platform/toshiba/visconti/viif_stats.c b/drivers/media/platform/toshiba/visconti/viif_stats.c
new file mode 100644
index 0000000000..28cd879b5f
--- /dev/null
+++ b/drivers/media/platform/toshiba/visconti/viif_stats.c
@@ -0,0 +1,334 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+/* Toshiba Visconti Video Capture Support
+ *
+ * (C) Copyright 2023 TOSHIBA CORPORATION
+ * (C) Copyright 2023 Toshiba Electronic Devices & Storage Corporation
+ */
+
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-subdev.h>
+#include <media/videobuf2-vmalloc.h>
+
+#include "viif.h"
+#include "viif_csi2rx.h"
+#include "viif_isp.h"
+#include "viif_common.h"
+#include "viif_regs.h"
+#include "viif_stats.h"
+
+struct viif_buffer {
+	struct vb2_v4l2_buffer vb;
+	struct list_head queue;
+};
+
+static void read_isp_capture_regs(struct viif_l1_info *l1_info, struct viif_device *viif_dev)
+{
+	unsigned long irqflags;
+	int i, j;
+	u32 val;
+
+	spin_lock_irqsave(&viif_dev->regbuf_lock, irqflags);
+	hwd_viif_isp_guard_start(viif_dev);
+
+	/* change register buffer to regbuf0 where driver gets information */
+	viif_capture_write(viif_dev, REG_L1_CRGBF_ACC_CONF, VAL_L1_CRGBF_ACC_CONF_MODE_BUFFER0);
+
+	/* get AWB info */
+	l1_info->awb_ave_u = viif_capture_read(viif_dev, REG_L1_AWHB_AVE_USIG);
+	l1_info->awb_ave_v = viif_capture_read(viif_dev, REG_L1_AWHB_AVE_VSIG);
+	l1_info->awb_accumulated_pixel = viif_capture_read(viif_dev, REG_L1_AWHB_NUM_UVON);
+	l1_info->awb_gain_r = viif_capture_read(viif_dev, REG_L1_AWHB_AWBGAINR);
+	l1_info->awb_gain_g = viif_capture_read(viif_dev, REG_L1_AWHB_AWBGAING);
+	l1_info->awb_gain_b = viif_capture_read(viif_dev, REG_L1_AWHB_AWBGAINB);
+	val = viif_capture_read(viif_dev, REG_L1_AWHB_R_CTR_STOP);
+	l1_info->awb_status_u = (FIELD_GET(BIT(1), val) != 0);
+	l1_info->awb_status_v = (FIELD_GET(BIT(0), val) != 0);
+
+	/* get average luminance info */
+	l1_info->avg_lum_weight = viif_capture_read(viif_dev, REG_L1_AEXP_RESULT_AVE);
+	val = viif_capture_read(viif_dev, REG_L1_AEXP_SATUR_BLACK_PIXNUM);
+	l1_info->avg_satur_pixnum = FIELD_GET(GENMASK(31, 16), val);
+	l1_info->avg_black_pixnum = FIELD_GET(GENMASK(15, 0), val);
+	for (i = 0; i < 8; i++) {
+		for (j = 0; j < 8; j++) {
+			l1_info->avg_lum_block[i][j] =
+				viif_capture_read(viif_dev, REG_L1_AEXP_AVE(i, j));
+		}
+	}
+	l1_info->avg_lum_four_line_lum[0] = viif_capture_read(viif_dev, REG_L1_AEXP_AVE4LINES0);
+	l1_info->avg_lum_four_line_lum[1] = viif_capture_read(viif_dev, REG_L1_AEXP_AVE4LINES1);
+	l1_info->avg_lum_four_line_lum[2] = viif_capture_read(viif_dev, REG_L1_AEXP_AVE4LINES2);
+	l1_info->avg_lum_four_line_lum[3] = viif_capture_read(viif_dev, REG_L1_AEXP_AVE4LINES3);
+
+	/* revert to register access from register buffer access */
+	viif_capture_write(viif_dev, REG_L1_CRGBF_ACC_CONF, VAL_L1_CRGBF_ACC_CONF_MODE_BYPASS);
+
+	hwd_viif_isp_guard_end(viif_dev);
+	spin_unlock_irqrestore(&viif_dev->regbuf_lock, irqflags);
+}
+
+static const struct viif_csi2rx_dphy_calibration_status calib_status_not_streaming = {
+	.term_cal_with_rext = -EAGAIN,
+	.clock_lane_offset_cal = -EAGAIN,
+	.data_lane0_offset_cal = -EAGAIN,
+	.data_lane1_offset_cal = -EAGAIN,
+	.data_lane2_offset_cal = -EAGAIN,
+	.data_lane3_offset_cal = -EAGAIN,
+	.data_lane0_ddl_tuning_cal = -EAGAIN,
+	.data_lane1_ddl_tuning_cal = -EAGAIN,
+	.data_lane2_ddl_tuning_cal = -EAGAIN,
+	.data_lane3_ddl_tuning_cal = -EAGAIN,
+};
+
+static const struct viif_csi2rx_err_status csi_err_not_streaming;
+
+void visconti_viif_stats_isr(struct viif_device *viif_dev, unsigned int sequence, u64 timestamp)
+{
+	struct visconti_viif_isp_stat *cur_stat_buf;
+	struct stats_dev *stats_dev = &viif_dev->stats_dev;
+	struct viif_buffer *cur_buf;
+
+	spin_lock(&stats_dev->stats_lock);
+
+	if (list_empty(&stats_dev->stats_queue))
+		goto done;
+
+	cur_buf = list_first_entry(&stats_dev->stats_queue, struct viif_buffer, queue);
+	list_del(&cur_buf->queue);
+	cur_stat_buf = (struct visconti_viif_isp_stat *)vb2_plane_vaddr(&cur_buf->vb.vb2_buf, 0);
+
+	if (!vb2_start_streaming_called(&viif_dev->cap_dev0.vb2_vq)) {
+		cur_stat_buf->csi2rx_dphy_calibration = calib_status_not_streaming;
+	} else {
+		visconti_viif_csi2rx_get_calibration_status(viif_dev,
+							    &cur_stat_buf->csi2rx_dphy_calibration);
+	}
+
+	if (!vb2_is_streaming(&viif_dev->cap_dev0.vb2_vq))
+		cur_stat_buf->csi2rx_err = csi_err_not_streaming;
+	else
+		visconti_viif_csi2rx_get_err_status(viif_dev, &cur_stat_buf->csi2rx_err);
+
+	read_isp_capture_regs(&cur_stat_buf->isp_capture.l1_info, viif_dev);
+
+	cur_stat_buf->errors.main = viif_dev->reported_err_main;
+	cur_stat_buf->errors.sub = viif_dev->reported_err_sub;
+	cur_stat_buf->errors.csi2rx = viif_dev->reported_err_csi2rx;
+	viif_dev->reported_err_main = 0;
+	viif_dev->reported_err_sub = 0;
+	viif_dev->reported_err_csi2rx = 0;
+
+	vb2_set_plane_payload(&cur_buf->vb.vb2_buf, 0, sizeof(struct visconti_viif_isp_stat));
+
+	cur_buf->vb.sequence = sequence;
+	cur_buf->vb.vb2_buf.timestamp = timestamp;
+	vb2_buffer_done(&cur_buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
+
+done:
+	spin_unlock(&stats_dev->stats_lock);
+}
+
+static int viif_stats_enum_fmt_meta_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	if (f->index > 0 || f->type != vdev->queue->type)
+		return -EINVAL;
+
+	f->pixelformat = V4L2_META_FMT_VISCONTI_VIIF_STATS;
+
+	return 0;
+}
+
+static int viif_stats_g_fmt_meta_cap(struct file *file, void *priv, struct v4l2_format *f)
+{
+	struct video_device *vdev = video_devdata(file);
+	struct v4l2_meta_format *meta = &f->fmt.meta;
+
+	if (f->type != vdev->queue->type)
+		return -EINVAL;
+
+	memset(meta, 0, sizeof(*meta));
+	meta->dataformat = V4L2_META_FMT_VISCONTI_VIIF_STATS;
+	meta->buffersize = sizeof(struct visconti_viif_isp_stat);
+
+	return 0;
+}
+
+static int viif_stats_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	strscpy(cap->driver, VIIF_DRIVER_NAME, sizeof(cap->driver));
+	strscpy(cap->card, vdev->name, sizeof(cap->card));
+	strscpy(cap->bus_info, VIIF_BUS_INFO_BASE "-0", sizeof(cap->bus_info));
+
+	return 0;
+}
+
+static const struct v4l2_ioctl_ops viif_stats_ioctl = {
+	.vidioc_reqbufs = vb2_ioctl_reqbufs,
+	.vidioc_querybuf = vb2_ioctl_querybuf,
+	.vidioc_create_bufs = vb2_ioctl_create_bufs,
+	.vidioc_qbuf = vb2_ioctl_qbuf,
+	.vidioc_dqbuf = vb2_ioctl_dqbuf,
+	.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+	.vidioc_expbuf = vb2_ioctl_expbuf,
+	.vidioc_streamon = vb2_ioctl_streamon,
+	.vidioc_streamoff = vb2_ioctl_streamoff,
+	.vidioc_enum_fmt_meta_cap = viif_stats_enum_fmt_meta_cap,
+	.vidioc_g_fmt_meta_cap = viif_stats_g_fmt_meta_cap,
+	.vidioc_s_fmt_meta_cap = viif_stats_g_fmt_meta_cap,
+	.vidioc_try_fmt_meta_cap = viif_stats_g_fmt_meta_cap,
+	.vidioc_querycap = viif_stats_querycap,
+	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+static const struct v4l2_file_operations viif_stats_fops = { .mmap = vb2_fop_mmap,
+							     .unlocked_ioctl = video_ioctl2,
+							     .poll = vb2_fop_poll,
+							     .open = v4l2_fh_open,
+							     .release = vb2_fop_release };
+
+static int viif_stats_vb2_queue_setup(struct vb2_queue *vq, unsigned int *num_buffers,
+				      unsigned int *num_planes, unsigned int sizes[],
+				      struct device *alloc_devs[])
+{
+	*num_planes = 1;
+	*num_buffers = clamp_t(u32, *num_buffers, 2, 8);
+	sizes[0] = sizeof(struct visconti_viif_isp_stat);
+
+	return 0;
+}
+
+static inline struct viif_buffer *vb2_to_viif(struct vb2_v4l2_buffer *vbuf)
+{
+	return container_of(vbuf, struct viif_buffer, vb);
+}
+
+static inline struct stats_dev *vb2queue_to_statsdev(struct vb2_queue *q)
+{
+	return (struct stats_dev *)vb2_get_drv_priv(q);
+}
+
+static void viif_stats_vb2_buf_queue(struct vb2_buffer *vb)
+{
+	struct stats_dev *stats_dev = vb2queue_to_statsdev(vb->vb2_queue);
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct viif_buffer *buf = vb2_to_viif(vbuf);
+
+	spin_lock_irq(&stats_dev->stats_lock);
+	list_add_tail(&buf->queue, &stats_dev->stats_queue);
+	spin_unlock_irq(&stats_dev->stats_lock);
+}
+
+static int viif_stats_vb2_buf_prepare(struct vb2_buffer *vb)
+{
+	if (vb2_plane_size(vb, 0) < sizeof(struct visconti_viif_isp_stat))
+		return -EINVAL;
+
+	vb2_set_plane_payload(vb, 0, sizeof(struct visconti_viif_isp_stat));
+
+	return 0;
+}
+
+static void viif_stats_vb2_stop_streaming(struct vb2_queue *q)
+{
+	struct stats_dev *stats_dev = vb2queue_to_statsdev(q);
+	struct viif_buffer *buf;
+	unsigned int i;
+
+	spin_lock_irq(&stats_dev->stats_lock);
+	for (i = 0; i < 8; i++) {
+		if (list_empty(&stats_dev->stats_queue))
+			break;
+		buf = list_first_entry(&stats_dev->stats_queue, struct viif_buffer, queue);
+		list_del(&buf->queue);
+		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+	}
+	spin_unlock_irq(&stats_dev->stats_lock);
+}
+
+static const struct vb2_ops viif_stats_vb2_ops = {
+	.queue_setup = viif_stats_vb2_queue_setup,
+	.wait_prepare = vb2_ops_wait_prepare,
+	.wait_finish = vb2_ops_wait_finish,
+	.buf_queue = viif_stats_vb2_buf_queue,
+	.buf_prepare = viif_stats_vb2_buf_prepare,
+	.stop_streaming = viif_stats_vb2_stop_streaming,
+};
+
+int visconti_viif_stats_register(struct viif_device *viif_dev)
+{
+	struct stats_dev *stats_dev = &viif_dev->stats_dev;
+	struct video_device *vdev = &stats_dev->vdev;
+	struct vb2_queue *q = &stats_dev->vb2_vq;
+	int ret;
+
+	mutex_init(&stats_dev->vlock);
+	INIT_LIST_HEAD(&stats_dev->stats_queue);
+	spin_lock_init(&stats_dev->stats_lock);
+
+	strscpy(vdev->name, "viif_stats", sizeof(vdev->name));
+
+	/* Register the video device */
+	video_set_drvdata(vdev, stats_dev);
+	vdev->ioctl_ops = &viif_stats_ioctl;
+	vdev->fops = &viif_stats_fops;
+	vdev->release = video_device_release_empty;
+	vdev->lock = &stats_dev->vlock;
+	vdev->v4l2_dev = &viif_dev->v4l2_dev;
+	vdev->queue = &stats_dev->vb2_vq;
+	vdev->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING;
+	vdev->vfl_dir = VFL_DIR_RX;
+
+	/* Initialize vb2 queue */
+	q->type = V4L2_BUF_TYPE_META_CAPTURE;
+	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+	q->drv_priv = stats_dev;
+	q->ops = &viif_stats_vb2_ops;
+	q->mem_ops = &vb2_vmalloc_memops;
+	q->buf_struct_size = sizeof(struct viif_buffer);
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	q->lock = &stats_dev->vlock;
+	q->dev = viif_dev->v4l2_dev.dev;
+
+	ret = vb2_queue_init(q);
+	if (ret)
+		return ret;
+
+	stats_dev->stats_pad.flags = MEDIA_PAD_FL_SINK;
+	ret = media_entity_pads_init(&vdev->entity, VIIF_STATS_PAD_NUM, &stats_dev->stats_pad);
+	if (ret)
+		goto error;
+
+	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+	if (ret) {
+		dev_err(viif_dev->v4l2_dev.dev, "video_register_device failed: %d\n", ret);
+		goto error;
+	}
+
+	return 0;
+
+error:
+	media_entity_cleanup(&vdev->entity);
+	mutex_destroy(&stats_dev->vlock);
+
+	return ret;
+}
+
+void visconti_viif_stats_unregister(struct viif_device *viif_dev)
+{
+	struct stats_dev *stats_dev = &viif_dev->stats_dev;
+	struct video_device *vdev = &stats_dev->vdev;
+
+	if (!video_is_registered(vdev))
+		return;
+
+	vb2_video_unregister_device(vdev);
+	media_entity_cleanup(&vdev->entity);
+	mutex_destroy(&stats_dev->vlock);
+}
diff --git a/drivers/media/platform/toshiba/visconti/viif_stats.h b/drivers/media/platform/toshiba/visconti/viif_stats.h
new file mode 100644
index 0000000000..3f778c58ef
--- /dev/null
+++ b/drivers/media/platform/toshiba/visconti/viif_stats.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
+/* Toshiba Visconti Video Capture Support
+ *
+ * (C) Copyright 2023 TOSHIBA CORPORATION
+ * (C) Copyright 2023 Toshiba Electronic Devices & Storage Corporation
+ */
+
+#ifndef VIIF_STATS_H
+#define VIIF_STATS_H
+
+void visconti_viif_stats_isr(struct viif_device *viif_dev, unsigned int sequence, u64 timestamp);
+int visconti_viif_stats_register(struct viif_device *viif_dev);
+void visconti_viif_stats_unregister(struct viif_device *viif_dev);
+#endif /* VIIF_STATS_H */
-- 
2.25.1