/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/ratelimit.h>
#include <linux/slab.h>
#include <uapi/media/cam_isp.h>
#include "cam_io_util.h"
#include "cam_debug_util.h"
#include "cam_cdm_util.h"
#include "cam_hw_intf.h"
#include "cam_ife_hw_mgr.h"
#include "cam_vfe_hw_intf.h"
#include "cam_irq_controller.h"
#include "cam_tasklet_util.h"
#include "cam_vfe_bus.h"
#include "cam_vfe_bus_ver2.h"
#include "cam_vfe_core.h"
#include "cam_debug_util.h"
#include "cam_cpas_api.h"

static const char drv_name[] = "vfe_bus";

#define CAM_VFE_BUS_IRQ_REG0                     0
#define CAM_VFE_BUS_IRQ_REG1                     1
#define CAM_VFE_BUS_IRQ_REG2                     2
#define CAM_VFE_BUS_IRQ_MAX                      3

#define CAM_VFE_BUS_VER2_PAYLOAD_MAX             256

#define CAM_VFE_RDI_BUS_DEFAULT_WIDTH               0xFF01
#define CAM_VFE_RDI_BUS_DEFAULT_STRIDE              0xFF01
#define CAM_VFE_BUS_INTRA_CLIENT_MASK               0x3
#define CAM_VFE_BUS_ADDR_SYNC_INTRA_CLIENT_SHIFT    8
#define CAM_VFE_BUS_ADDR_NO_SYNC_DEFAULT_VAL        0xFFFFF

#define ALIGNUP(value, alignment) \
	((value + alignment - 1) / alignment * alignment)

#define MAX_BUF_UPDATE_REG_NUM   \
	((sizeof(struct cam_vfe_bus_ver2_reg_offset_bus_client) +  \
	sizeof(struct cam_vfe_bus_ver2_reg_offset_ubwc_client))/4)
#define MAX_REG_VAL_PAIR_SIZE    \
	(MAX_BUF_UPDATE_REG_NUM * 2 * CAM_PACKET_MAX_PLANES)

#define CAM_VFE_ADD_REG_VAL_PAIR(buf_array, index, offset, val)    \
	do {                                               \
		buf_array[index++] = offset;               \
		buf_array[index++] = val;                  \
	} while (0)

static uint32_t bus_error_irq_mask[3] = {
	0x7800,
	0x0000,
	0x0040,
};

enum cam_vfe_bus_packer_format {
	PACKER_FMT_PLAIN_128                   = 0x0,
	PACKER_FMT_PLAIN_8                     = 0x1,
	PACKER_FMT_PLAIN_16_10BPP              = 0x2,
	PACKER_FMT_PLAIN_16_12BPP              = 0x3,
	PACKER_FMT_PLAIN_16_14BPP              = 0x4,
	PACKER_FMT_PLAIN_16_16BPP              = 0x5,
	PACKER_FMT_ARGB_10                     = 0x6,
	PACKER_FMT_ARGB_12                     = 0x7,
	PACKER_FMT_ARGB_14                     = 0x8,
	PACKER_FMT_PLAIN_32_20BPP              = 0x9,
	PACKER_FMT_PLAIN_64                    = 0xA,
	PACKER_FMT_TP_10                       = 0xB,
	PACKER_FMT_PLAIN_32_32BPP              = 0xC,
	PACKER_FMT_PLAIN_8_ODD_EVEN            = 0xD,
	PACKER_FMT_PLAIN_8_LSB_MSB_10          = 0xE,
	PACKER_FMT_PLAIN_8_LSB_MSB_10_ODD_EVEN = 0xF,
	PACKER_FMT_MAX                         = 0xF,
};

enum cam_vfe_bus_comp_grp_id {
	CAM_VFE_BUS_COMP_GROUP_NONE = -EINVAL,
	CAM_VFE_BUS_COMP_GROUP_ID_0 = 0x0,
	CAM_VFE_BUS_COMP_GROUP_ID_1 = 0x1,
	CAM_VFE_BUS_COMP_GROUP_ID_2 = 0x2,
	CAM_VFE_BUS_COMP_GROUP_ID_3 = 0x3,
	CAM_VFE_BUS_COMP_GROUP_ID_4 = 0x4,
	CAM_VFE_BUS_COMP_GROUP_ID_5 = 0x5,
};

struct cam_vfe_bus_ver2_common_data {
	uint32_t                                    core_index;
	void __iomem                               *mem_base;
	struct cam_hw_intf                         *hw_intf;
	void                                       *bus_irq_controller;
	void                                       *vfe_irq_controller;
	struct cam_vfe_bus_ver2_reg_offset_common  *common_reg;
	uint32_t                                    io_buf_update[
		MAX_REG_VAL_PAIR_SIZE];

	struct cam_vfe_bus_irq_evt_payload          evt_payload[
		CAM_VFE_BUS_VER2_PAYLOAD_MAX];
	struct list_head                            free_payload_list;
	struct mutex                                bus_mutex;
	uint32_t                                    secure_mode;
	uint32_t                                    num_sec_out;
	uint32_t                                    addr_no_sync;
};

struct cam_vfe_bus_ver2_wm_resource_data {
	uint32_t             index;
	struct cam_vfe_bus_ver2_common_data            *common_data;
	struct cam_vfe_bus_ver2_reg_offset_bus_client  *hw_regs;
	void                                *ctx;

	uint32_t             irq_enabled;
	bool                 init_cfg_done;
	bool                 hfr_cfg_done;

	uint32_t             offset;
	uint32_t             width;
	uint32_t             height;
	uint32_t             stride;
	uint32_t             format;
	enum cam_vfe_bus_packer_format pack_fmt;

	uint32_t             burst_len;

	uint32_t             en_ubwc;
	uint32_t             packer_cfg;
	uint32_t             tile_cfg;
	uint32_t             h_init;
	uint32_t             v_init;
	uint32_t             ubwc_meta_stride;
	uint32_t             ubwc_mode_cfg;
	uint32_t             ubwc_meta_offset;

	uint32_t             irq_subsample_period;
	uint32_t             irq_subsample_pattern;
	uint32_t             framedrop_period;
	uint32_t             framedrop_pattern;

	uint32_t             en_cfg;
	uint32_t             is_dual;
};

struct cam_vfe_bus_ver2_comp_grp_data {
	enum cam_vfe_bus_ver2_comp_grp_type          comp_grp_type;
	struct cam_vfe_bus_ver2_common_data         *common_data;
	struct cam_vfe_bus_ver2_reg_offset_comp_grp *hw_regs;

	uint32_t                         irq_enabled;
	uint32_t                         comp_grp_local_idx;
	uint32_t                         unique_id;

	uint32_t                         is_master;
	uint32_t                         dual_slave_core;
	uint32_t                         intra_client_mask;
	uint32_t                         composite_mask;
	uint32_t                         addr_sync_mode;

	uint32_t                         acquire_dev_cnt;
	uint32_t                         irq_trigger_cnt;

	void                            *ctx;
};

struct cam_vfe_bus_ver2_vfe_out_data {
	uint32_t                              out_type;
	struct cam_vfe_bus_ver2_common_data  *common_data;

	uint32_t                         num_wm;
	struct cam_isp_resource_node    *wm_res[PLANE_MAX];

	struct cam_isp_resource_node    *comp_grp;
	enum cam_isp_hw_sync_mode        dual_comp_sync_mode;
	uint32_t                         dual_hw_alternate_vfe_id;
	struct list_head                 vfe_out_list;

	uint32_t                         format;
	uint32_t                         max_width;
	uint32_t                         max_height;
	struct cam_cdm_utils_ops        *cdm_util_ops;
	uint32_t                         secure_mode;
};

struct cam_vfe_bus_ver2_priv {
	struct cam_vfe_bus_ver2_common_data common_data;
	uint32_t                            num_client;
	uint32_t                            num_out;

	struct cam_isp_resource_node  bus_client[CAM_VFE_BUS_VER2_MAX_CLIENTS];
	struct cam_isp_resource_node  comp_grp[CAM_VFE_BUS_VER2_COMP_GRP_MAX];
	struct cam_isp_resource_node  vfe_out[CAM_VFE_BUS_VER2_VFE_OUT_MAX];

	struct list_head                    free_comp_grp;
	struct list_head                    free_dual_comp_grp;
	struct list_head                    used_comp_grp;

	uint32_t                            irq_handle;
	uint32_t                            error_irq_handle;
};

static int cam_vfe_bus_process_cmd(
	struct cam_isp_resource_node *priv,
	uint32_t cmd_type, void *cmd_args, uint32_t arg_size);

static int cam_vfe_bus_get_evt_payload(
	struct cam_vfe_bus_ver2_common_data  *common_data,
	struct cam_vfe_bus_irq_evt_payload  **evt_payload)
{
	if (list_empty(&common_data->free_payload_list)) {
		*evt_payload = NULL;
		CAM_ERR_RATE_LIMIT(CAM_ISP, "No free payload");
		return -ENODEV;
	}

	*evt_payload = list_first_entry(&common_data->free_payload_list,
		struct cam_vfe_bus_irq_evt_payload, list);
	list_del_init(&(*evt_payload)->list);
	return 0;
}

static enum cam_vfe_bus_comp_grp_id
	cam_vfe_bus_comp_grp_id_convert(uint32_t comp_grp)
{
	switch (comp_grp) {
	case CAM_ISP_RES_COMP_GROUP_ID_0:
		return CAM_VFE_BUS_COMP_GROUP_ID_0;
	case CAM_ISP_RES_COMP_GROUP_ID_1:
		return CAM_VFE_BUS_COMP_GROUP_ID_1;
	case CAM_ISP_RES_COMP_GROUP_ID_2:
		return CAM_VFE_BUS_COMP_GROUP_ID_2;
	case CAM_ISP_RES_COMP_GROUP_ID_3:
		return CAM_VFE_BUS_COMP_GROUP_ID_3;
	case CAM_ISP_RES_COMP_GROUP_ID_4:
		return CAM_VFE_BUS_COMP_GROUP_ID_4;
	case CAM_ISP_RES_COMP_GROUP_ID_5:
		return CAM_VFE_BUS_COMP_GROUP_ID_5;
	case CAM_ISP_RES_COMP_GROUP_NONE:
	default:
		return CAM_VFE_BUS_COMP_GROUP_NONE;
	}
}

static int cam_vfe_bus_put_evt_payload(void     *core_info,
	struct cam_vfe_bus_irq_evt_payload     **evt_payload)
{
	struct cam_vfe_bus_ver2_common_data *common_data = NULL;
	uint32_t  *ife_irq_regs = NULL;
	uint32_t   status_reg0, status_reg1, status_reg2;

	if (!core_info) {
		CAM_ERR(CAM_ISP, "Invalid param core_info NULL");
		return -EINVAL;
	}
	if (*evt_payload == NULL) {
		CAM_ERR(CAM_ISP, "No payload to put");
		return -EINVAL;
	}
	(*evt_payload)->error_type = 0;
	ife_irq_regs = (*evt_payload)->irq_reg_val;
	status_reg0 = ife_irq_regs[CAM_IFE_IRQ_BUS_REG_STATUS0];
	status_reg1 = ife_irq_regs[CAM_IFE_IRQ_BUS_REG_STATUS1];
	status_reg2 = ife_irq_regs[CAM_IFE_IRQ_BUS_REG_STATUS2];

	if (status_reg0 || status_reg1 || status_reg2) {
		CAM_DBG(CAM_ISP, "status0 0x%x status1 0x%x status2 0x%x",
			status_reg0, status_reg1, status_reg2);
		return 0;
	}

	common_data = core_info;
	list_add_tail(&(*evt_payload)->list,
		&common_data->free_payload_list);
	*evt_payload = NULL;

	CAM_DBG(CAM_ISP, "Done");
	return 0;
}

static int cam_vfe_bus_ver2_get_intra_client_mask(
	enum cam_vfe_bus_ver2_vfe_core_id  dual_slave_core,
	enum cam_vfe_bus_ver2_vfe_core_id  current_core,
	uint32_t                          *intra_client_mask)
{
	int rc = 0;
	uint32_t camera_hw_version = 0;
	uint32_t version_based_intra_client_mask = 0x1;

	*intra_client_mask = 0;


	if (dual_slave_core == current_core) {
		CAM_ERR(CAM_ISP,
			"Invalid params. Same core as Master and Slave");
		return -EINVAL;
	}

	rc = cam_cpas_get_cpas_hw_version(&camera_hw_version);

	CAM_DBG(CAM_ISP, "CPAS VERSION %d", camera_hw_version);

	switch (camera_hw_version) {
	case CAM_CPAS_TITAN_170_V100:
		version_based_intra_client_mask = 0x3;
		break;
	default:
		version_based_intra_client_mask = 0x1;
		break;
	}


	switch (current_core) {
	case CAM_VFE_BUS_VER2_VFE_CORE_0:
		switch (dual_slave_core) {
		case CAM_VFE_BUS_VER2_VFE_CORE_1:
			*intra_client_mask = version_based_intra_client_mask;
			break;
		default:
			CAM_ERR(CAM_ISP, "Invalid value for slave core %u",
				dual_slave_core);
			rc = -EINVAL;
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_CORE_1:
		switch (dual_slave_core) {
		case CAM_VFE_BUS_VER2_VFE_CORE_0:
			*intra_client_mask = version_based_intra_client_mask;
			break;
		default:
			CAM_ERR(CAM_ISP, "Invalid value for slave core %u",
				dual_slave_core);
			rc = -EINVAL;
			break;
		}
		break;
	default:
		CAM_ERR(CAM_ISP,
			"Invalid value for master core %u", current_core);
		rc = -EINVAL;
		break;
	}

	return rc;
}

static bool cam_vfe_bus_can_be_secure(uint32_t out_type)
{
	switch (out_type) {
	case CAM_VFE_BUS_VER2_VFE_OUT_FULL:
	case CAM_VFE_BUS_VER2_VFE_OUT_DS4:
	case CAM_VFE_BUS_VER2_VFE_OUT_DS16:
	case CAM_VFE_BUS_VER2_VFE_OUT_FD:
	case CAM_VFE_BUS_VER2_VFE_OUT_RAW_DUMP:
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI0:
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI1:
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI2:
		return true;

	case CAM_VFE_BUS_VER2_VFE_OUT_PDAF:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_HDR_BE:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_HDR_BHIST:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_TL_BG:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_BF:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_AWB_BG:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_BHIST:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_RS:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_CS:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_IHIST:
	default:
		return false;
	}
}

static enum cam_vfe_bus_ver2_vfe_out_type
	cam_vfe_bus_get_out_res_id(uint32_t res_type)
{
	switch (res_type) {
	case CAM_ISP_IFE_OUT_RES_FULL:
		return CAM_VFE_BUS_VER2_VFE_OUT_FULL;
	case CAM_ISP_IFE_OUT_RES_DS4:
		return CAM_VFE_BUS_VER2_VFE_OUT_DS4;
	case CAM_ISP_IFE_OUT_RES_DS16:
		return CAM_VFE_BUS_VER2_VFE_OUT_DS16;
	case CAM_ISP_IFE_OUT_RES_FD:
		return CAM_VFE_BUS_VER2_VFE_OUT_FD;
	case CAM_ISP_IFE_OUT_RES_RAW_DUMP:
		return CAM_VFE_BUS_VER2_VFE_OUT_RAW_DUMP;
	case CAM_ISP_IFE_OUT_RES_PDAF:
		return CAM_VFE_BUS_VER2_VFE_OUT_PDAF;
	case CAM_ISP_IFE_OUT_RES_RDI_0:
		return CAM_VFE_BUS_VER2_VFE_OUT_RDI0;
	case CAM_ISP_IFE_OUT_RES_RDI_1:
		return CAM_VFE_BUS_VER2_VFE_OUT_RDI1;
	case CAM_ISP_IFE_OUT_RES_RDI_2:
		return CAM_VFE_BUS_VER2_VFE_OUT_RDI2;
	case CAM_ISP_IFE_OUT_RES_RDI_3:
		return CAM_VFE_BUS_VER2_VFE_OUT_RDI3;
	case CAM_ISP_IFE_OUT_RES_STATS_HDR_BE:
		return CAM_VFE_BUS_VER2_VFE_OUT_STATS_HDR_BE;
	case CAM_ISP_IFE_OUT_RES_STATS_HDR_BHIST:
		return CAM_VFE_BUS_VER2_VFE_OUT_STATS_HDR_BHIST;
	case CAM_ISP_IFE_OUT_RES_STATS_TL_BG:
		return CAM_VFE_BUS_VER2_VFE_OUT_STATS_TL_BG;
	case CAM_ISP_IFE_OUT_RES_STATS_BF:
		return CAM_VFE_BUS_VER2_VFE_OUT_STATS_BF;
	case CAM_ISP_IFE_OUT_RES_STATS_AWB_BG:
		return CAM_VFE_BUS_VER2_VFE_OUT_STATS_AWB_BG;
	case CAM_ISP_IFE_OUT_RES_STATS_BHIST:
		return CAM_VFE_BUS_VER2_VFE_OUT_STATS_BHIST;
	case CAM_ISP_IFE_OUT_RES_STATS_RS:
		return CAM_VFE_BUS_VER2_VFE_OUT_STATS_RS;
	case CAM_ISP_IFE_OUT_RES_STATS_CS:
		return CAM_VFE_BUS_VER2_VFE_OUT_STATS_CS;
	case CAM_ISP_IFE_OUT_RES_STATS_IHIST:
		return CAM_VFE_BUS_VER2_VFE_OUT_STATS_IHIST;
	default:
		return CAM_VFE_BUS_VER2_VFE_OUT_MAX;
	}
}

static int cam_vfe_bus_get_num_wm(
	enum cam_vfe_bus_ver2_vfe_out_type    res_type,
	uint32_t                              format)
{
	switch (res_type) {
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI0:
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI1:
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI2:
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI3:
		switch (format) {
		case CAM_FORMAT_MIPI_RAW_8:
		case CAM_FORMAT_MIPI_RAW_10:
		case CAM_FORMAT_MIPI_RAW_12:
		case CAM_FORMAT_MIPI_RAW_14:
		case CAM_FORMAT_MIPI_RAW_16:
		case CAM_FORMAT_MIPI_RAW_20:
		case CAM_FORMAT_DPCM_10_6_10:
		case CAM_FORMAT_DPCM_10_8_10:
		case CAM_FORMAT_DPCM_12_6_12:
		case CAM_FORMAT_DPCM_12_8_12:
		case CAM_FORMAT_DPCM_14_8_14:
		case CAM_FORMAT_DPCM_14_10_14:
		case CAM_FORMAT_PLAIN8:
		case CAM_FORMAT_PLAIN16_10:
		case CAM_FORMAT_PLAIN16_12:
		case CAM_FORMAT_PLAIN16_14:
		case CAM_FORMAT_PLAIN16_16:
		case CAM_FORMAT_PLAIN32_20:
		case CAM_FORMAT_PLAIN128:
			return 1;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_FULL:
		switch (format) {
		case CAM_FORMAT_NV21:
		case CAM_FORMAT_NV12:
		case CAM_FORMAT_MIPI_RAW_8:
		case CAM_FORMAT_PLAIN8:
		case CAM_FORMAT_TP10:
		case CAM_FORMAT_UBWC_NV12:
		case CAM_FORMAT_UBWC_NV12_4R:
		case CAM_FORMAT_UBWC_TP10:
		case CAM_FORMAT_UBWC_P010:
		case CAM_FORMAT_PLAIN16_10:
			return 2;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_FD:
		switch (format) {
		case CAM_FORMAT_NV21:
		case CAM_FORMAT_NV12:
		case CAM_FORMAT_PLAIN8:
		case CAM_FORMAT_TP10:
		case CAM_FORMAT_PLAIN16_10:
			return 2;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_DS4:
	case CAM_VFE_BUS_VER2_VFE_OUT_DS16:
		switch (format) {
		case CAM_FORMAT_PD8:
		case CAM_FORMAT_PD10:
			return 1;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_RAW_DUMP:
		switch (format) {
		case CAM_FORMAT_ARGB_14:
		case CAM_FORMAT_PLAIN8:
		case CAM_FORMAT_PLAIN16_10:
		case CAM_FORMAT_PLAIN16_12:
		case CAM_FORMAT_PLAIN16_14:
			return 1;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_PDAF:
		switch (format) {
		case CAM_FORMAT_PLAIN8:
		case CAM_FORMAT_PLAIN16_10:
		case CAM_FORMAT_PLAIN16_12:
		case CAM_FORMAT_PLAIN16_14:
			return 1;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_HDR_BE:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_HDR_BHIST:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_TL_BG:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_BF:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_AWB_BG:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_BHIST:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_CS:
		switch (format) {
		case CAM_FORMAT_PLAIN64:
			return 1;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_RS:
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_IHIST:
		switch (format) {
		case CAM_FORMAT_PLAIN16_16:
			return 1;
		default:
			break;
		}
		break;
	default:
		break;
	}

	CAM_ERR(CAM_ISP, "Unsupported format %u for resource_type %u",
		format, res_type);

	return -EINVAL;
}

static int cam_vfe_bus_get_wm_idx(
	enum cam_vfe_bus_ver2_vfe_out_type vfe_out_res_id,
	enum cam_vfe_bus_plane_type plane)
{
	int wm_idx = -1;

	switch (vfe_out_res_id) {
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI0:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 0;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI1:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 1;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI2:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 2;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_RDI3:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 3;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_FULL:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 3;
			break;
		case PLANE_C:
			wm_idx = 4;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_DS4:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 5;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_DS16:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 6;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_FD:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 7;
			break;
		case PLANE_C:
			wm_idx = 8;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_RAW_DUMP:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 9;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_PDAF:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 10;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_HDR_BE:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 11;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_HDR_BHIST:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 12;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_TL_BG:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 13;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_BF:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 14;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_AWB_BG:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 15;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_BHIST:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 16;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_RS:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 17;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_CS:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 18;
			break;
		default:
			break;
		}
		break;
	case CAM_VFE_BUS_VER2_VFE_OUT_STATS_IHIST:
		switch (plane) {
		case PLANE_Y:
			wm_idx = 19;
			break;
		default:
			break;
		}
		break;
	default:
		break;
	}

	return wm_idx;
}

static enum cam_vfe_bus_packer_format
	cam_vfe_bus_get_packer_fmt(uint32_t out_fmt, int wm_index)
{
	switch (out_fmt) {
	case CAM_FORMAT_NV21:
		if (wm_index == 4 || wm_index == 6)
			return PACKER_FMT_PLAIN_8_LSB_MSB_10_ODD_EVEN;
	case CAM_FORMAT_NV12:
	case CAM_FORMAT_UBWC_NV12:
	case CAM_FORMAT_UBWC_NV12_4R:
		return PACKER_FMT_PLAIN_8_LSB_MSB_10;
	case CAM_FORMAT_PLAIN16_16:
		return PACKER_FMT_PLAIN_16_16BPP;
	case CAM_FORMAT_PLAIN64:
		return PACKER_FMT_PLAIN_64;
	case CAM_FORMAT_PLAIN8:
		return PACKER_FMT_PLAIN_8;
	case CAM_FORMAT_PLAIN16_10:
		return PACKER_FMT_PLAIN_16_10BPP;
	case CAM_FORMAT_PLAIN16_12:
		return PACKER_FMT_PLAIN_16_12BPP;
	case CAM_FORMAT_PLAIN16_14:
		return PACKER_FMT_PLAIN_16_14BPP;
	case CAM_FORMAT_PLAIN32_20:
		return PACKER_FMT_PLAIN_32_20BPP;
	case CAM_FORMAT_MIPI_RAW_6:
	case CAM_FORMAT_MIPI_RAW_8:
	case CAM_FORMAT_MIPI_RAW_10:
	case CAM_FORMAT_MIPI_RAW_12:
	case CAM_FORMAT_MIPI_RAW_14:
	case CAM_FORMAT_MIPI_RAW_16:
	case CAM_FORMAT_MIPI_RAW_20:
	case CAM_FORMAT_PLAIN16_8:
	case CAM_FORMAT_PLAIN128:
	case CAM_FORMAT_PD8:
	case CAM_FORMAT_PD10:
		return PACKER_FMT_PLAIN_128;
	case CAM_FORMAT_UBWC_TP10:
	case CAM_FORMAT_TP10:
		return PACKER_FMT_TP_10;
	case CAM_FORMAT_ARGB_14:
		return PACKER_FMT_ARGB_14;
	default:
		return PACKER_FMT_MAX;
	}
}

static int cam_vfe_bus_acquire_wm(
	struct cam_vfe_bus_ver2_priv          *ver2_bus_priv,
	struct cam_isp_out_port_info          *out_port_info,
	void                                  *tasklet,
	void                                  *ctx,
	enum cam_vfe_bus_ver2_vfe_out_type     vfe_out_res_id,
	enum cam_vfe_bus_plane_type            plane,
	uint32_t                               subscribe_irq,
	struct cam_isp_resource_node         **wm_res,
	uint32_t                              *client_done_mask,
	uint32_t                               is_dual)
{
	uint32_t wm_idx = 0;
	struct cam_isp_resource_node              *wm_res_local = NULL;
	struct cam_vfe_bus_ver2_wm_resource_data  *rsrc_data = NULL;

	*wm_res = NULL;
	*client_done_mask = 0;

	/* No need to allocate for BUS VER2. VFE OUT to WM is fixed. */
	wm_idx = cam_vfe_bus_get_wm_idx(vfe_out_res_id, plane);
	if (wm_idx < 0 || wm_idx >= ver2_bus_priv->num_client) {
		CAM_ERR(CAM_ISP, "Unsupported VFE out %d plane %d",
			vfe_out_res_id, plane);
		return -EINVAL;
	}

	wm_res_local = &ver2_bus_priv->bus_client[wm_idx];
	wm_res_local->tasklet_info = tasklet;
	wm_res_local->res_state = CAM_ISP_RESOURCE_STATE_RESERVED;

	rsrc_data = wm_res_local->res_priv;
	rsrc_data->irq_enabled = subscribe_irq;
	rsrc_data->ctx = ctx;
	rsrc_data->format = out_port_info->format;
	rsrc_data->pack_fmt = cam_vfe_bus_get_packer_fmt(rsrc_data->format,
		wm_idx);

	rsrc_data->width = out_port_info->width;
	rsrc_data->height = out_port_info->height;
	rsrc_data->is_dual = is_dual;
	/* Set WM offset value to default */
	rsrc_data->offset  = 0;
	CAM_DBG(CAM_ISP, "WM %d width %d height %d", rsrc_data->index,
		rsrc_data->width, rsrc_data->height);

	if (rsrc_data->index < 3) {
		/* Write master 0-2 refers to RDI 0/ RDI 1/RDI 2 */
		switch (rsrc_data->format) {
		case CAM_FORMAT_MIPI_RAW_6:
		case CAM_FORMAT_MIPI_RAW_8:
		case CAM_FORMAT_MIPI_RAW_10:
		case CAM_FORMAT_MIPI_RAW_12:
		case CAM_FORMAT_MIPI_RAW_14:
		case CAM_FORMAT_MIPI_RAW_16:
		case CAM_FORMAT_MIPI_RAW_20:
		case CAM_FORMAT_PLAIN128:
			rsrc_data->width = CAM_VFE_RDI_BUS_DEFAULT_WIDTH;
			rsrc_data->height = 0;
			rsrc_data->stride = CAM_VFE_RDI_BUS_DEFAULT_STRIDE;
			rsrc_data->pack_fmt = 0x0;
			rsrc_data->en_cfg = 0x3;
			break;
		case CAM_FORMAT_PLAIN8:
			rsrc_data->en_cfg = 0x1;
			rsrc_data->pack_fmt = 0x1;
			rsrc_data->width = rsrc_data->width * 2;
			rsrc_data->stride = rsrc_data->width;
			break;
		case CAM_FORMAT_PLAIN16_10:
			rsrc_data->width = CAM_VFE_RDI_BUS_DEFAULT_WIDTH;
			rsrc_data->height = 0;
			rsrc_data->stride = CAM_VFE_RDI_BUS_DEFAULT_STRIDE;
			rsrc_data->pack_fmt = 0x0;
			rsrc_data->en_cfg = 0x3;
			break;
		case CAM_FORMAT_PLAIN16_12:
			rsrc_data->en_cfg = 0x1;
			rsrc_data->pack_fmt = 0x3;
			rsrc_data->width = rsrc_data->width * 2;
			rsrc_data->stride = rsrc_data->width;
			break;
		case CAM_FORMAT_PLAIN16_14:
			rsrc_data->en_cfg = 0x1;
			rsrc_data->pack_fmt = 0x4;
			rsrc_data->width = rsrc_data->width * 2;
			rsrc_data->stride = rsrc_data->width;
			break;
		case CAM_FORMAT_PLAIN16_16:
			rsrc_data->en_cfg = 0x1;
			rsrc_data->pack_fmt = 0x5;
			rsrc_data->width = rsrc_data->width * 2;
			rsrc_data->stride = rsrc_data->width;
			break;
		case CAM_FORMAT_PLAIN32_20:
			rsrc_data->en_cfg = 0x1;
			rsrc_data->pack_fmt = 0x9;
			break;
		case CAM_FORMAT_PLAIN64:
			rsrc_data->en_cfg = 0x1;
			rsrc_data->pack_fmt = 0xA;
			break;
		default:
			CAM_ERR(CAM_ISP, "Unsupported RDI format %d",
				rsrc_data->format);
			return -EINVAL;
		}
	} else if (rsrc_data->index < 5 ||
		rsrc_data->index == 7 || rsrc_data->index == 8) {
		/* Write master 3, 4 - for Full OUT , 7-8  FD OUT */
		switch (rsrc_data->format) {
		case CAM_FORMAT_UBWC_NV12_4R:
			rsrc_data->en_ubwc = 1;
			rsrc_data->width = ALIGNUP(rsrc_data->width, 64);
			switch (plane) {
			case PLANE_C:
				rsrc_data->height /= 2;
				break;
			case PLANE_Y:
				break;
			default:
				CAM_ERR(CAM_ISP, "Invalid plane %d", plane);
				return -EINVAL;
			}
			break;
		case CAM_FORMAT_UBWC_NV12:
			rsrc_data->en_ubwc = 1;
			/* Fall through for NV12 */
		case CAM_FORMAT_NV21:
		case CAM_FORMAT_NV12:
			switch (plane) {
			case PLANE_C:
				rsrc_data->height /= 2;
				break;
			case PLANE_Y:
				break;
			default:
				CAM_ERR(CAM_ISP, "Invalid plane %d", plane);
				return -EINVAL;
			}
			break;
		case CAM_FORMAT_UBWC_TP10:
			rsrc_data->en_ubwc = 1;
			rsrc_data->width =
				ALIGNUP(rsrc_data->width, 48) * 4 / 3;
			switch (plane) {
			case PLANE_C:
				rsrc_data->height /= 2;
				break;
			case PLANE_Y:
				break;
			default:
				CAM_ERR(CAM_ISP, "Invalid plane %d", plane);
				return -EINVAL;
			}
			break;
		case CAM_FORMAT_TP10:
			rsrc_data->width =
				ALIGNUP(rsrc_data->width, 3) * 4 / 3;
			switch (plane) {
			case PLANE_C:
				rsrc_data->height /= 2;
				break;
			case PLANE_Y:
				break;
			default:
				CAM_ERR(CAM_ISP, "Invalid plane %d", plane);
				return -EINVAL;
			}
			break;
		case CAM_FORMAT_PLAIN16_10:
			switch (plane) {
			case PLANE_C:
				rsrc_data->height /= 2;
				break;
			case PLANE_Y:
				break;
			default:
				CAM_ERR(CAM_ISP, "Invalid plane %d", plane);
				return -EINVAL;
			}
			rsrc_data->width *= 2;
			break;
		default:
			CAM_ERR(CAM_ISP, "Invalid format %d",
				rsrc_data->format);
			return -EINVAL;
		}
		rsrc_data->en_cfg = 0x1;
	} else if (rsrc_data->index >= 11) {
		/* Write master 11-19  stats */
		rsrc_data->width = 0;
		rsrc_data->height = 0;
		rsrc_data->stride = 1;
		rsrc_data->en_cfg = 0x3;
	}  else if (rsrc_data->index == 9 || rsrc_data->index == 10) {
		/* Write master 9 - Raw dump */
		rsrc_data->width = rsrc_data->width * 2;
		rsrc_data->stride = rsrc_data->width;
		rsrc_data->en_cfg = 0x1;
		/* LSB aligned */
		rsrc_data->pack_fmt |= 0x10;
	}  else {
		/* Write master 5-6 DS ports, 10 PDAF */
		uint32_t align_width;
		rsrc_data->width = rsrc_data->width * 4;
		rsrc_data->height = rsrc_data->height / 2;
		rsrc_data->en_cfg = 0x1;
		CAM_DBG(CAM_ISP, "before width %d", rsrc_data->width);
		align_width = ALIGNUP(rsrc_data->width, 16);
		if (align_width != rsrc_data->width) {
			CAM_WARN(CAM_ISP,
				"Override width %u with expected %u",
				rsrc_data->width, align_width);
			rsrc_data->width = align_width;
		}
	}

	*client_done_mask = (1 << wm_idx);
	*wm_res = wm_res_local;

	CAM_DBG(CAM_ISP, "WM %d: processed width %d, processed  height %d",
		rsrc_data->index, rsrc_data->width, rsrc_data->height);
	return 0;
}

static int cam_vfe_bus_release_wm(void   *bus_priv,
	struct cam_isp_resource_node     *wm_res)
{
	struct cam_vfe_bus_ver2_wm_resource_data   *rsrc_data =
		wm_res->res_priv;

	rsrc_data->irq_enabled = 0;
	rsrc_data->offset = 0;
	rsrc_data->width = 0;
	rsrc_data->height = 0;
	rsrc_data->stride = 0;
	rsrc_data->format = 0;
	rsrc_data->pack_fmt = 0;
	rsrc_data->burst_len = 0;
	rsrc_data->irq_subsample_period = 0;
	rsrc_data->irq_subsample_pattern = 0;
	rsrc_data->framedrop_period = 0;
	rsrc_data->framedrop_pattern = 0;
	rsrc_data->packer_cfg = 0;
	rsrc_data->en_ubwc = 0;
	rsrc_data->tile_cfg = 0;
	rsrc_data->h_init = 0;
	rsrc_data->v_init = 0;
	rsrc_data->ubwc_meta_stride = 0;
	rsrc_data->ubwc_mode_cfg = 0;
	rsrc_data->ubwc_meta_offset = 0;
	rsrc_data->init_cfg_done = false;
	rsrc_data->hfr_cfg_done = false;
	rsrc_data->en_cfg = 0;
	rsrc_data->is_dual = 0;

	wm_res->tasklet_info = NULL;
	wm_res->res_state = CAM_ISP_RESOURCE_STATE_AVAILABLE;

	return 0;
}

static int cam_vfe_bus_start_wm(struct cam_isp_resource_node *wm_res)
{
	int rc = 0;
	struct cam_vfe_bus_ver2_wm_resource_data   *rsrc_data =
		wm_res->res_priv;
	struct cam_vfe_bus_ver2_common_data        *common_data =
		rsrc_data->common_data;
	uint32_t                   bus_irq_reg_mask[CAM_VFE_BUS_IRQ_MAX] = {0};

	cam_io_w(0xf, common_data->mem_base + rsrc_data->hw_regs->burst_limit);

	cam_io_w_mb(rsrc_data->width,
		common_data->mem_base + rsrc_data->hw_regs->buffer_width_cfg);
	cam_io_w(rsrc_data->height,
		common_data->mem_base + rsrc_data->hw_regs->buffer_height_cfg);
	cam_io_w(rsrc_data->pack_fmt,
		common_data->mem_base + rsrc_data->hw_regs->packer_cfg);

	/* Configure stride for RDIs */
	if (rsrc_data->index < 3)
		cam_io_w_mb(rsrc_data->stride, (common_data->mem_base +
			rsrc_data->hw_regs->stride));

	/* Subscribe IRQ */
	if (rsrc_data->irq_enabled) {
		CAM_DBG(CAM_ISP, "Subscribe WM%d IRQ", rsrc_data->index);
		bus_irq_reg_mask[CAM_VFE_BUS_IRQ_REG1] =
			(1 << rsrc_data->index);
		wm_res->irq_handle = cam_irq_controller_subscribe_irq(
			common_data->bus_irq_controller, CAM_IRQ_PRIORITY_1,
			bus_irq_reg_mask, wm_res,
			wm_res->top_half_handler,
			cam_ife_mgr_do_tasklet_buf_done,
			wm_res->tasklet_info, cam_tasklet_enqueue_cmd);
		if (wm_res->irq_handle < 0) {
			CAM_ERR(CAM_ISP, "Subscribe IRQ failed for WM %d",
				rsrc_data->index);
			return -EFAULT;
		}
	}

	/* enable ubwc if needed*/
	if (rsrc_data->en_ubwc) {
		int val = cam_io_r_mb(common_data->mem_base +
			rsrc_data->hw_regs->ubwc_regs->mode_cfg);
		CAM_DBG(CAM_ISP, "ubwc reg %d, res id %d",
			val, rsrc_data->index);
		val |= 0x1;
		cam_io_w_mb(val, common_data->mem_base +
			rsrc_data->hw_regs->ubwc_regs->mode_cfg);
	}

	/* Enable WM */
	cam_io_w_mb(rsrc_data->en_cfg, common_data->mem_base +
		rsrc_data->hw_regs->cfg);

	CAM_DBG(CAM_ISP, "WM res %d width = %d, height = %d", rsrc_data->index,
		rsrc_data->width, rsrc_data->height);
	CAM_DBG(CAM_ISP, "WM res %d pk_fmt = %d", rsrc_data->index,
		rsrc_data->pack_fmt & PACKER_FMT_MAX);
	CAM_DBG(CAM_ISP, "WM res %d stride = %d, burst len = %d",
		rsrc_data->index, rsrc_data->stride, 0xf);
	CAM_DBG(CAM_ISP, "enable WM res %d offset 0x%x val 0x%x",
		rsrc_data->index, (uint32_t) rsrc_data->hw_regs->cfg,
		rsrc_data->en_cfg);

	wm_res->res_state = CAM_ISP_RESOURCE_STATE_STREAMING;

	return rc;
}

static int cam_vfe_bus_stop_wm(struct cam_isp_resource_node *wm_res)
{
	int rc = 0;
	struct cam_vfe_bus_ver2_wm_resource_data   *rsrc_data =
		wm_res->res_priv;
	struct cam_vfe_bus_ver2_common_data        *common_data =
		rsrc_data->common_data;

	/* Disble WM */
	/* Disable all register access, reply on global reset */
	CAM_DBG(CAM_ISP, "irq_enabled %d", rsrc_data->irq_enabled);
	/* Unsubscribe IRQ */
	if (rsrc_data->irq_enabled)
		rc = cam_irq_controller_unsubscribe_irq(
			common_data->bus_irq_controller,
			wm_res->irq_handle);

	wm_res->res_state = CAM_ISP_RESOURCE_STATE_RESERVED;
	rsrc_data->init_cfg_done = false;
	rsrc_data->hfr_cfg_done = false;

	return rc;
}

static int cam_vfe_bus_handle_wm_done_top_half(uint32_t evt_id,
	struct cam_irq_th_payload *th_payload)
{
	int32_t                                     rc;
	int                                         i;
	struct cam_isp_resource_node               *wm_res = NULL;
	struct cam_vfe_bus_ver2_wm_resource_data   *rsrc_data = NULL;
	struct cam_vfe_bus_irq_evt_payload         *evt_payload;

	wm_res = th_payload->handler_priv;
	if (!wm_res) {
		CAM_ERR_RATE_LIMIT(CAM_ISP, "Error: No resource");
		return -ENODEV;
	}

	rsrc_data = wm_res->res_priv;

	CAM_DBG(CAM_ISP, "IRQ status_0 = 0x%x", th_payload->evt_status_arr[0]);
	CAM_DBG(CAM_ISP, "IRQ status_1 = 0x%x", th_payload->evt_status_arr[1]);

	rc  = cam_vfe_bus_get_evt_payload(rsrc_data->common_data, &evt_payload);
	if (rc) {
		CAM_ERR_RATE_LIMIT(CAM_ISP,
			"IRQ status_0 = 0x%x status_1 = 0x%x status_2 = 0x%x",
			th_payload->evt_status_arr[0],
			th_payload->evt_status_arr[1],
			th_payload->evt_status_arr[2]);

		return rc;
	}

	cam_isp_hw_get_timestamp(&evt_payload->ts);

	evt_payload->ctx = rsrc_data->ctx;
	evt_payload->core_index = rsrc_data->common_data->core_index;
	evt_payload->evt_id  = evt_id;

	for (i = 0; i < th_payload->num_registers; i++)
		evt_payload->irq_reg_val[i] = th_payload->evt_status_arr[i];

	th_payload->evt_payload_priv = evt_payload;

	CAM_DBG(CAM_ISP, "Exit");
	return rc;
}

static int cam_vfe_bus_handle_wm_done_bottom_half(void *wm_node,
	void *evt_payload_priv)
{
	int rc = CAM_VFE_IRQ_STATUS_ERR;
	struct cam_isp_resource_node          *wm_res = wm_node;
	struct cam_vfe_bus_irq_evt_payload    *evt_payload = evt_payload_priv;
	struct cam_vfe_bus_ver2_wm_resource_data *rsrc_data =
		(wm_res == NULL) ? NULL : wm_res->res_priv;
	uint32_t  *cam_ife_irq_regs;
	uint32_t   status_reg;

	if (!evt_payload || !rsrc_data)
		return rc;

	cam_ife_irq_regs = evt_payload->irq_reg_val;
	status_reg = cam_ife_irq_regs[CAM_IFE_IRQ_BUS_REG_STATUS1];

	if (status_reg & BIT(rsrc_data->index)) {
		cam_ife_irq_regs[CAM_IFE_IRQ_BUS_REG_STATUS1] &=
			~BIT(rsrc_data->index);
		rc = CAM_VFE_IRQ_STATUS_SUCCESS;
	}
	CAM_DBG(CAM_ISP, "status_reg %x rc %d", status_reg, rc);

	if (rc == CAM_VFE_IRQ_STATUS_SUCCESS)
		cam_vfe_bus_put_evt_payload(rsrc_data->common_data,
			&evt_payload);

	return rc;
}

static int cam_vfe_bus_init_wm_resource(uint32_t index,
	struct cam_vfe_bus_ver2_priv    *ver2_bus_priv,
	struct cam_vfe_bus_ver2_hw_info *ver2_hw_info,
	struct cam_isp_resource_node    *wm_res)
{
	struct cam_vfe_bus_ver2_wm_resource_data *rsrc_data;

	rsrc_data = kzalloc(sizeof(struct cam_vfe_bus_ver2_wm_resource_data),
		GFP_KERNEL);
	if (!rsrc_data) {
		CAM_DBG(CAM_ISP, "Failed to alloc for WM res priv");
		return -ENOMEM;
	}
	wm_res->res_priv = rsrc_data;

	rsrc_data->index = index;
	rsrc_data->hw_regs = &ver2_hw_info->bus_client_reg[index];
	rsrc_data->common_data = &ver2_bus_priv->common_data;

	wm_res->res_state = CAM_ISP_RESOURCE_STATE_AVAILABLE;
	INIT_LIST_HEAD(&wm_res->list);

	wm_res->start = cam_vfe_bus_start_wm;
	wm_res->stop = cam_vfe_bus_stop_wm;
	wm_res->top_half_handler = cam_vfe_bus_handle_wm_done_top_half;
	wm_res->bottom_half_handler = cam_vfe_bus_handle_wm_done_bottom_half;
	wm_res->hw_intf = ver2_bus_priv->common_data.hw_intf;

	return 0;
}

static int cam_vfe_bus_deinit_wm_resource(
	struct cam_isp_resource_node    *wm_res)
{
	struct cam_vfe_bus_ver2_wm_resource_data *rsrc_data;

	wm_res->res_state = CAM_ISP_RESOURCE_STATE_UNAVAILABLE;
	INIT_LIST_HEAD(&wm_res->list);

	wm_res->start = NULL;
	wm_res->stop = NULL;
	wm_res->top_half_handler = NULL;
	wm_res->bottom_half_handler = NULL;
	wm_res->hw_intf = NULL;

	rsrc_data = wm_res->res_priv;
	wm_res->res_priv = NULL;
	if (!rsrc_data)
		return -ENOMEM;
	kfree(rsrc_data);

	return 0;
}

static void cam_vfe_bus_add_wm_to_comp_grp(
	struct cam_isp_resource_node    *comp_grp,
	uint32_t                         composite_mask)
{
	struct cam_vfe_bus_ver2_comp_grp_data  *rsrc_data = comp_grp->res_priv;

	rsrc_data->composite_mask |= composite_mask;
}

static void cam_vfe_bus_match_comp_grp(
	struct cam_vfe_bus_ver2_priv  *ver2_bus_priv,
	struct cam_isp_resource_node **comp_grp,
	uint32_t                       comp_grp_local_idx,
	uint32_t                       unique_id)
{
	struct cam_vfe_bus_ver2_comp_grp_data  *rsrc_data = NULL;
	struct cam_isp_resource_node           *comp_grp_local = NULL;

	list_for_each_entry(comp_grp_local,
		&ver2_bus_priv->used_comp_grp, list) {
		rsrc_data = comp_grp_local->res_priv;
		if (rsrc_data->comp_grp_local_idx == comp_grp_local_idx &&
			rsrc_data->unique_id == unique_id) {
			/* Match found */
			*comp_grp = comp_grp_local;
			return;
		}
	}

	*comp_grp = NULL;
}

static int cam_vfe_bus_acquire_comp_grp(
	struct cam_vfe_bus_ver2_priv        *ver2_bus_priv,
	struct cam_isp_out_port_info        *out_port_info,
	void                                *tasklet,
	void                                *ctx,
	uint32_t                             unique_id,
	uint32_t                             is_dual,
	uint32_t                             is_master,
	enum cam_vfe_bus_ver2_vfe_core_id    dual_slave_core,
	struct cam_isp_resource_node       **comp_grp)
{
	int rc = 0;
	uint32_t bus_comp_grp_id;
	struct cam_isp_resource_node           *comp_grp_local = NULL;
	struct cam_vfe_bus_ver2_comp_grp_data  *rsrc_data = NULL;

	bus_comp_grp_id = cam_vfe_bus_comp_grp_id_convert(
		out_port_info->comp_grp_id);
	/* Perform match only if there is valid comp grp request */
	if (out_port_info->comp_grp_id != CAM_ISP_RES_COMP_GROUP_NONE) {
		/* Check if matching comp_grp already acquired */
		cam_vfe_bus_match_comp_grp(ver2_bus_priv, &comp_grp_local,
			bus_comp_grp_id, unique_id);
	}

	if (!comp_grp_local) {
		/* First find a free group */
		if (is_dual) {
			CAM_DBG(CAM_ISP, "Acquire dual comp group");
			if (list_empty(&ver2_bus_priv->free_dual_comp_grp)) {
				CAM_ERR(CAM_ISP, "No Free Composite Group");
				return -ENODEV;
			}
			comp_grp_local = list_first_entry(
				&ver2_bus_priv->free_dual_comp_grp,
				struct cam_isp_resource_node, list);
			rsrc_data = comp_grp_local->res_priv;
			rc = cam_vfe_bus_ver2_get_intra_client_mask(
				dual_slave_core,
				comp_grp_local->hw_intf->hw_idx,
				&rsrc_data->intra_client_mask);
			if (rc)
				return rc;
		} else {
			CAM_DBG(CAM_ISP, "Acquire comp group");
			if (list_empty(&ver2_bus_priv->free_comp_grp)) {
				CAM_ERR(CAM_ISP, "No Free Composite Group");
				return -ENODEV;
			}
			comp_grp_local = list_first_entry(
				&ver2_bus_priv->free_comp_grp,
				struct cam_isp_resource_node, list);
			rsrc_data = comp_grp_local->res_priv;
		}

		list_del(&comp_grp_local->list);
		comp_grp_local->tasklet_info = tasklet;
		comp_grp_local->res_state = CAM_ISP_RESOURCE_STATE_RESERVED;

		rsrc_data->is_master = is_master;
		rsrc_data->composite_mask = 0;
		rsrc_data->unique_id = unique_id;
		rsrc_data->comp_grp_local_idx = bus_comp_grp_id;

		if (is_master)
			rsrc_data->addr_sync_mode = 0;
		else
			rsrc_data->addr_sync_mode = 1;

		list_add_tail(&comp_grp_local->list,
			&ver2_bus_priv->used_comp_grp);

	} else {
		rsrc_data = comp_grp_local->res_priv;
		/* Do not support runtime change in composite mask */
		if (comp_grp_local->res_state ==
			CAM_ISP_RESOURCE_STATE_STREAMING) {
			CAM_ERR(CAM_ISP, "Invalid State %d Comp Grp %u",
				comp_grp_local->res_state,
				rsrc_data->comp_grp_type);
			return -EBUSY;
		}
	}

	CAM_DBG(CAM_ISP, "Comp Grp type %u", rsrc_data->comp_grp_type);

	rsrc_data->ctx = ctx;
	rsrc_data->acquire_dev_cnt++;
	*comp_grp = comp_grp_local;

	return rc;
}

static int cam_vfe_bus_release_comp_grp(
	struct cam_vfe_bus_ver2_priv         *ver2_bus_priv,
	struct cam_isp_resource_node         *in_comp_grp)
{
	struct cam_isp_resource_node           *comp_grp = NULL;
	struct cam_vfe_bus_ver2_comp_grp_data  *in_rsrc_data = NULL;
	int match_found = 0;

	if (!in_comp_grp) {
		CAM_ERR(CAM_ISP, "Invalid Params Comp Grp %pK", in_comp_grp);
		return -EINVAL;
	}

	if (in_comp_grp->res_state == CAM_ISP_RESOURCE_STATE_AVAILABLE) {
		CAM_ERR(CAM_ISP, "Already released Comp Grp");
		return 0;
	}

	if (in_comp_grp->res_state == CAM_ISP_RESOURCE_STATE_STREAMING) {
		CAM_ERR(CAM_ISP, "Invalid State %d",
			in_comp_grp->res_state);
		return -EBUSY;
	}

	in_rsrc_data = in_comp_grp->res_priv;
	CAM_DBG(CAM_ISP, "Comp Grp type %u", in_rsrc_data->comp_grp_type);

	list_for_each_entry(comp_grp, &ver2_bus_priv->used_comp_grp, list) {
		if (comp_grp == in_comp_grp) {
			match_found = 1;
			break;
		}
	}

	if (!match_found) {
		CAM_ERR(CAM_ISP, "Could not find matching Comp Grp type %u",
			in_rsrc_data->comp_grp_type);
		return -ENODEV;
	}

	in_rsrc_data->acquire_dev_cnt--;
	if (in_rsrc_data->acquire_dev_cnt == 0) {
		list_del(&comp_grp->list);

		in_rsrc_data->unique_id = 0;
		in_rsrc_data->comp_grp_local_idx = CAM_VFE_BUS_COMP_GROUP_NONE;
		in_rsrc_data->composite_mask = 0;
		in_rsrc_data->dual_slave_core = CAM_VFE_BUS_VER2_VFE_CORE_MAX;
		in_rsrc_data->addr_sync_mode = 0;

		comp_grp->tasklet_info = NULL;
		comp_grp->res_state = CAM_ISP_RESOURCE_STATE_AVAILABLE;

		if (in_rsrc_data->comp_grp_type >=
			CAM_VFE_BUS_VER2_COMP_GRP_DUAL_0 &&
			in_rsrc_data->comp_grp_type <=
			CAM_VFE_BUS_VER2_COMP_GRP_DUAL_5)
			list_add_tail(&comp_grp->list,
				&ver2_bus_priv->free_dual_comp_grp);
		else if (in_rsrc_data->comp_grp_type >=
			CAM_VFE_BUS_VER2_COMP_GRP_0 &&
			in_rsrc_data->comp_grp_type <=
			CAM_VFE_BUS_VER2_COMP_GRP_5)
			list_add_tail(&comp_grp->list,
				&ver2_bus_priv->free_comp_grp);
	}

	return 0;
}

static int cam_vfe_bus_start_comp_grp(struct cam_isp_resource_node *comp_grp)
{
	int rc = 0;
	uint32_t addr_sync_cfg;
	struct cam_vfe_bus_ver2_comp_grp_data      *rsrc_data =
		comp_grp->res_priv;
	struct cam_vfe_bus_ver2_common_data        *common_data =
		rsrc_data->common_data;
	uint32_t bus_irq_reg_mask[CAM_VFE_BUS_IRQ_MAX] = {0};

	CAM_DBG(CAM_ISP, "comp group id:%d streaming state:%d",
		rsrc_data->comp_grp_type, comp_grp->res_state);

	cam_io_w_mb(rsrc_data->composite_mask, common_data->mem_base +
		rsrc_data->hw_regs->comp_mask);
	if (comp_grp->res_state == CAM_ISP_RESOURCE_STATE_STREAMING)
		return 0;

	CAM_DBG(CAM_ISP, "composite_mask is 0x%x", rsrc_data->composite_mask);
	CAM_DBG(CAM_ISP, "composite_mask addr 0x%x",
		rsrc_data->hw_regs->comp_mask);

	if (rsrc_data->comp_grp_type >= CAM_VFE_BUS_VER2_COMP_GRP_DUAL_0 &&
		rsrc_data->comp_grp_type <= CAM_VFE_BUS_VER2_COMP_GRP_DUAL_5) {
		int dual_comp_grp = (rsrc_data->comp_grp_type -
			CAM_VFE_BUS_VER2_COMP_GRP_DUAL_0);

		if (rsrc_data->is_master) {
			int intra_client_en = cam_io_r_mb(
				common_data->mem_base +
				common_data->common_reg->dual_master_comp_cfg);

			/*
			 * 2 Bits per comp_grp. Hence left shift by
			 * comp_grp * 2
			 */
			intra_client_en |=
				(rsrc_data->intra_client_mask <<
					(dual_comp_grp * 2));

			cam_io_w_mb(intra_client_en, common_data->mem_base +
				common_data->common_reg->dual_master_comp_cfg);

			bus_irq_reg_mask[CAM_VFE_BUS_IRQ_REG2] =
				(1 << dual_comp_grp);
		}

		CAM_DBG(CAM_ISP, "addr_sync_mask addr 0x%x",
			rsrc_data->hw_regs->addr_sync_mask);
		cam_io_w_mb(rsrc_data->composite_mask, common_data->mem_base +
			rsrc_data->hw_regs->addr_sync_mask);

		addr_sync_cfg = cam_io_r_mb(common_data->mem_base +
			common_data->common_reg->addr_sync_cfg);
		addr_sync_cfg |= (rsrc_data->addr_sync_mode << dual_comp_grp);
		/*
		 * 2 Bits per dual_comp_grp. dual_comp_grp stats at bit number
		 * 8. Hence left shift cdual_comp_grp dual comp_grp * 2 and
		 * add 8
		 */
		addr_sync_cfg |=
			(rsrc_data->intra_client_mask <<
				((dual_comp_grp * 2) +
				CAM_VFE_BUS_ADDR_SYNC_INTRA_CLIENT_SHIFT));
		cam_io_w_mb(addr_sync_cfg, common_data->mem_base +
			common_data->common_reg->addr_sync_cfg);

		common_data->addr_no_sync &= ~(rsrc_data->composite_mask);
		cam_io_w_mb(common_data->addr_no_sync, common_data->mem_base +
			common_data->common_reg->addr_sync_no_sync);
		CAM_DBG(CAM_ISP, "addr_sync_cfg: 0x%x addr_no_sync_cfg: 0x%x",
			addr_sync_cfg, common_data->addr_no_sync);
	} else {
		/* IRQ bits for COMP GRP start at 5. So add 5 to the shift */
		bus_irq_reg_mask[CAM_VFE_BUS_IRQ_REG0] =
			(1 << (rsrc_data->comp_grp_type + 5));
	}

	/*
	 * For Dual composite subscribe IRQ only for master
	 * For regular composite, subscribe IRQ always
	 */
	CAM_DBG(CAM_ISP, "Subscribe COMP_GRP%d IRQ", rsrc_data->comp_grp_type);
	if (((rsrc_data->comp_grp_type >= CAM_VFE_BUS_VER2_COMP_GRP_DUAL_0 &&
		rsrc_data->comp_grp_type <= CAM_VFE_BUS_VER2_COMP_GRP_DUAL_5) &&
		(rsrc_data->is_master)) ||
		(rsrc_data->comp_grp_type >= CAM_VFE_BUS_VER2_COMP_GRP_0 &&
		rsrc_data->comp_grp_type <= CAM_VFE_BUS_VER2_COMP_GRP_5)) {
		comp_grp->irq_handle = cam_irq_controller_subscribe_irq(
			common_data->bus_irq_controller, CAM_IRQ_PRIORITY_1,
			bus_irq_reg_mask, comp_grp,
			comp_grp->top_half_handler,
			cam_ife_mgr_do_tasklet_buf_done,
			comp_grp->tasklet_info, cam_tasklet_enqueue_cmd);
		if (comp_grp->irq_handle < 0) {
			CAM_ERR(CAM_ISP, "Subscribe IRQ failed for comp_grp %d",
				rsrc_data->comp_grp_type);
			return -EFAULT;
		}
	}
	comp_grp->res_state = CAM_ISP_RESOURCE_STATE_STREAMING;

	return rc;
}

static int cam_vfe_bus_stop_comp_grp(struct cam_isp_resource_node *comp_grp)
{
	int rc = 0;
	struct cam_vfe_bus_ver2_comp_grp_data      *rsrc_data =
		comp_grp->res_priv;
	struct cam_vfe_bus_ver2_common_data        *common_data =
		rsrc_data->common_data;

	/* Unsubscribe IRQ */
	if (((rsrc_data->comp_grp_type >= CAM_VFE_BUS_VER2_COMP_GRP_DUAL_0 &&
		rsrc_data->comp_grp_type <= CAM_VFE_BUS_VER2_COMP_GRP_DUAL_5) &&
		(rsrc_data->is_master)) ||
		(rsrc_data->comp_grp_type >= CAM_VFE_BUS_VER2_COMP_GRP_0 &&
		rsrc_data->comp_grp_type <= CAM_VFE_BUS_VER2_COMP_GRP_5)) {
		rc = cam_irq_controller_unsubscribe_irq(
			common_data->bus_irq_controller,
			comp_grp->irq_handle);
	}
	comp_grp->res_state = CAM_ISP_RESOURCE_STATE_RESERVED;

	return rc;
}

static int cam_vfe_bus_handle_comp_done_top_half(uint32_t evt_id,
	struct cam_irq_th_payload *th_payload)
{
	int32_t                                     rc;
	int                                         i;
	struct cam_isp_resource_node               *comp_grp = NULL;
	struct cam_vfe_bus_ver2_comp_grp_data      *rsrc_data = NULL;
	struct cam_vfe_bus_irq_evt_payload         *evt_payload;

	comp_grp = th_payload->handler_priv;
	if (!comp_grp) {
		CAM_ERR_RATE_LIMIT(CAM_ISP, "No resource");
		return -ENODEV;
	}

	rsrc_data = comp_grp->res_priv;

	CAM_DBG(CAM_ISP, "IRQ status_0 = 0x%x", th_payload->evt_status_arr[0]);
	CAM_DBG(CAM_ISP, "IRQ status_1 = 0x%x", th_payload->evt_status_arr[1]);
	CAM_DBG(CAM_ISP, "IRQ status_2 = 0x%x", th_payload->evt_status_arr[2]);

	rc  = cam_vfe_bus_get_evt_payload(rsrc_data->common_data, &evt_payload);
	if (rc) {
		CAM_ERR_RATE_LIMIT(CAM_ISP,
			"No tasklet_cmd is free in queue");
		CAM_ERR_RATE_LIMIT(CAM_ISP,
			"IRQ status_0 = 0x%x status_1 = 0x%x status_2 = 0x%x",
			th_payload->evt_status_arr[0],
			th_payload->evt_status_arr[1],
			th_payload->evt_status_arr[2]);

		return rc;
	}

	cam_isp_hw_get_timestamp(&evt_payload->ts);

	evt_payload->ctx = rsrc_data->ctx;
	evt_payload->core_index = rsrc_data->common_data->core_index;
	evt_payload->evt_id  = evt_id;

	for (i = 0; i < th_payload->num_registers; i++)
		evt_payload->irq_reg_val[i] = th_payload->evt_status_arr[i];

	th_payload->evt_payload_priv = evt_payload;

	CAM_DBG(CAM_ISP, "Exit");
	return rc;
}

static int cam_vfe_bus_handle_comp_done_bottom_half(
	void                *handler_priv,
	void                *evt_payload_priv)
{
	int rc = CAM_VFE_IRQ_STATUS_ERR;
	struct cam_isp_resource_node          *comp_grp = handler_priv;
	struct cam_vfe_bus_irq_evt_payload    *evt_payload = evt_payload_priv;
	struct cam_vfe_bus_ver2_comp_grp_data *rsrc_data = comp_grp->res_priv;
	uint32_t                              *cam_ife_irq_regs;
	uint32_t                               status_reg;
	uint32_t                               comp_err_reg;
	uint32_t                               comp_grp_id;

	CAM_DBG(CAM_ISP, "comp grp type %d", rsrc_data->comp_grp_type);

	if (!evt_payload)
		return rc;

	cam_ife_irq_regs = evt_payload->irq_reg_val;

	switch (rsrc_data->comp_grp_type) {
	case CAM_VFE_BUS_VER2_COMP_GRP_0:
	case CAM_VFE_BUS_VER2_COMP_GRP_1:
	case CAM_VFE_BUS_VER2_COMP_GRP_2:
	case CAM_VFE_BUS_VER2_COMP_GRP_3:
	case CAM_VFE_BUS_VER2_COMP_GRP_4:
	case CAM_VFE_BUS_VER2_COMP_GRP_5:
		comp_grp_id = (rsrc_data->comp_grp_type -
			CAM_VFE_BUS_VER2_COMP_GRP_0);

		/* Check for Regular composite error */
		status_reg = cam_ife_irq_regs[CAM_IFE_IRQ_BUS_REG_STATUS0];

		comp_err_reg = cam_ife_irq_regs[CAM_IFE_IRQ_BUS_REG_COMP_ERR];
		if ((status_reg & BIT(11)) &&
			(comp_err_reg & rsrc_data->composite_mask)) {
			/* Check for Regular composite error */
			rc = CAM_VFE_IRQ_STATUS_ERR_COMP;
			break;
		}

		comp_err_reg = cam_ife_irq_regs[CAM_IFE_IRQ_BUS_REG_COMP_OWRT];
		/* Check for Regular composite Overwrite */
		if ((status_reg & BIT(12)) &&
			(comp_err_reg & rsrc_data->composite_mask)) {
			rc = CAM_VFE_IRQ_STATUS_COMP_OWRT;
			break;
		}

		/* Regular Composite SUCCESS */
		if (status_reg & BIT(comp_grp_id + 5)) {
			rsrc_data->irq_trigger_cnt++;
			if (rsrc_data->irq_trigger_cnt ==
				rsrc_data->acquire_dev_cnt) {
				cam_ife_irq_regs[CAM_IFE_IRQ_BUS_REG_STATUS0] &=
					~BIT(comp_grp_id + 5);
				rsrc_data->irq_trigger_cnt = 0;
			}
			rc = CAM_VFE_IRQ_STATUS_SUCCESS;
		}

		CAM_DBG(CAM_ISP, "status reg = 0x%x, bit index = %d rc %d",
			status_reg, (comp_grp_id + 5), rc);
		break;

	case CAM_VFE_BUS_VER2_COMP_GRP_DUAL_0:
	case CAM_VFE_BUS_VER2_COMP_GRP_DUAL_1:
	case CAM_VFE_BUS_VER2_COMP_GRP_DUAL_2:
	case CAM_VFE_BUS_VER2_COMP_GRP_DUAL_3:
	case CAM_VFE_BUS_VER2_COMP_GRP_DUAL_4:
	case CAM_VFE_BUS_VER2_COMP_GRP_DUAL_5:
		comp_grp_id = (rsrc_data->comp_grp_type -
			CAM_VFE_BUS_VER2_COMP_GRP_DUAL_0);

		/* Check for DUAL composite error */
		status_reg = cam_ife_irq_regs[CAM_IFE_IRQ_BUS_REG_STATUS2];

		comp_err_reg = cam_ife_irq_regs[CAM_IFE_IRQ_BUS_DUAL_COMP_ERR];
		if ((status_reg & BIT(6)) &&
			(comp_err_reg & rsrc_data->composite_mask)) {
			/* Check for DUAL composite error */
			rc = CAM_VFE_IRQ_STATUS_ERR_COMP;
			break;
		}

		/* Check for Dual composite Overwrite */
		comp_err_reg = cam_ife_irq_regs[CAM_IFE_IRQ_BUS_DUAL_COMP_OWRT];
		if ((status_reg & BIT(7)) &&
			(comp_err_reg & rsrc_data->composite_mask)) {
			rc = CAM_VFE_IRQ_STATUS_COMP_OWRT;
			break;
		}

		/* DUAL Composite SUCCESS */
		if (status_reg & BIT(comp_grp_id)) {
			rsrc_data->irq_trigger_cnt++;
			if (rsrc_data->irq_trigger_cnt ==
				rsrc_data->acquire_dev_cnt) {
				cam_ife_irq_regs[CAM_IFE_IRQ_BUS_REG_STATUS2] &=
					~BIT(comp_grp_id);
				rsrc_data->irq_trigger_cnt = 0;
			}
			rc = CAM_VFE_IRQ_STATUS_SUCCESS;
		}

		break;
	default:
		rc = CAM_VFE_IRQ_STATUS_ERR;
		CAM_ERR(CAM_ISP, "Invalid comp_grp_type %u",
			rsrc_data->comp_grp_type);
		break;
	}

	if (rc == CAM_VFE_IRQ_STATUS_SUCCESS)
		cam_vfe_bus_put_evt_payload(rsrc_data->common_data,
			&evt_payload);

	return rc;
}

static int cam_vfe_bus_init_comp_grp(uint32_t index,
	struct cam_vfe_bus_ver2_priv    *ver2_bus_priv,
	struct cam_vfe_bus_ver2_hw_info *ver2_hw_info,
	struct cam_isp_resource_node    *comp_grp)
{
	struct cam_vfe_bus_ver2_comp_grp_data *rsrc_data = NULL;

	rsrc_data = kzalloc(sizeof(struct cam_vfe_bus_ver2_comp_grp_data),
		GFP_KERNEL);
	if (!rsrc_data)
		return -ENOMEM;

	comp_grp->res_priv = rsrc_data;

	comp_grp->res_state = CAM_ISP_RESOURCE_STATE_AVAILABLE;
	INIT_LIST_HEAD(&comp_grp->list);

	rsrc_data->comp_grp_type   = index;
	rsrc_data->common_data     = &ver2_bus_priv->common_data;
	rsrc_data->hw_regs         = &ver2_hw_info->comp_grp_reg[index];
	rsrc_data->dual_slave_core = CAM_VFE_BUS_VER2_VFE_CORE_MAX;

	if (rsrc_data->comp_grp_type >= CAM_VFE_BUS_VER2_COMP_GRP_DUAL_0 &&
		rsrc_data->comp_grp_type <= CAM_VFE_BUS_VER2_COMP_GRP_DUAL_5)
		list_add_tail(&comp_grp->list,
			&ver2_bus_priv->free_dual_comp_grp);
	else if (rsrc_data->comp_grp_type >= CAM_VFE_BUS_VER2_COMP_GRP_0
		&& rsrc_data->comp_grp_type <= CAM_VFE_BUS_VER2_COMP_GRP_5)
		list_add_tail(&comp_grp->list, &ver2_bus_priv->free_comp_grp);

	comp_grp->start = cam_vfe_bus_start_comp_grp;
	comp_grp->stop = cam_vfe_bus_stop_comp_grp;
	comp_grp->top_half_handler = cam_vfe_bus_handle_comp_done_top_half;
	comp_grp->bottom_half_handler =
		cam_vfe_bus_handle_comp_done_bottom_half;
	comp_grp->hw_intf = ver2_bus_priv->common_data.hw_intf;

	return 0;
}

static int cam_vfe_bus_deinit_comp_grp(
	struct cam_isp_resource_node    *comp_grp)
{
	struct cam_vfe_bus_ver2_comp_grp_data *rsrc_data =
		comp_grp->res_priv;

	comp_grp->start = NULL;
	comp_grp->stop = NULL;
	comp_grp->top_half_handler = NULL;
	comp_grp->bottom_half_handler = NULL;
	comp_grp->hw_intf = NULL;

	list_del_init(&comp_grp->list);
	comp_grp->res_state = CAM_ISP_RESOURCE_STATE_UNAVAILABLE;

	comp_grp->res_priv = NULL;

	if (!rsrc_data) {
		CAM_ERR(CAM_ISP, "comp_grp_priv is NULL");
		return -ENODEV;
	}
	kfree(rsrc_data);

	return 0;
}

static int cam_vfe_bus_get_secure_mode(void *priv, void *cmd_args,
	uint32_t arg_size)
{
	bool *mode = cmd_args;
	struct cam_isp_resource_node *res =
		(struct cam_isp_resource_node *) priv;
	struct cam_vfe_bus_ver2_vfe_out_data *rsrc_data =
		(struct cam_vfe_bus_ver2_vfe_out_data *)res->res_priv;

	*mode =
		(rsrc_data->secure_mode == CAM_SECURE_MODE_SECURE) ?
		true : false;

	return 0;
}

static int cam_vfe_bus_acquire_vfe_out(void *bus_priv, void *acquire_args,
	uint32_t args_size)
{
	int                                     rc = -ENODEV;
	int                                     i;
	enum cam_vfe_bus_ver2_vfe_out_type      vfe_out_res_id;
	uint32_t                                format;
	int                                     num_wm;
	uint32_t                                subscribe_irq;
	uint32_t                                client_done_mask;
	struct cam_vfe_bus_ver2_priv           *ver2_bus_priv = bus_priv;
	struct cam_vfe_acquire_args            *acq_args = acquire_args;
	struct cam_vfe_hw_vfe_out_acquire_args *out_acquire_args;
	struct cam_isp_resource_node           *rsrc_node = NULL;
	struct cam_vfe_bus_ver2_vfe_out_data   *rsrc_data = NULL;
	uint32_t                                secure_caps = 0, mode;

	if (!bus_priv || !acquire_args) {
		CAM_ERR(CAM_ISP, "Invalid Param");
		return -EINVAL;
	}

	out_acquire_args = &acq_args->vfe_out;
	format = out_acquire_args->out_port_info->format;

	CAM_DBG(CAM_ISP, "Acquiring resource type 0x%x",
		out_acquire_args->out_port_info->res_type);

	vfe_out_res_id = cam_vfe_bus_get_out_res_id(
		out_acquire_args->out_port_info->res_type);
	if (vfe_out_res_id == CAM_VFE_BUS_VER2_VFE_OUT_MAX)
		return -ENODEV;

	num_wm = cam_vfe_bus_get_num_wm(vfe_out_res_id, format);
	if (num_wm < 1)
		return -EINVAL;

	rsrc_node = &ver2_bus_priv->vfe_out[vfe_out_res_id];
	if (rsrc_node->res_state != CAM_ISP_RESOURCE_STATE_AVAILABLE) {
		CAM_ERR(CAM_ISP, "Resource not available: Res_id %d state:%d",
			vfe_out_res_id, rsrc_node->res_state);
		return -EBUSY;
	}

	rsrc_data = rsrc_node->res_priv;
	secure_caps = cam_vfe_bus_can_be_secure(
		rsrc_data->out_type);
	mode = out_acquire_args->out_port_info->secure_mode;
	mutex_lock(&rsrc_data->common_data->bus_mutex);
	if (secure_caps) {
		if (!rsrc_data->common_data->num_sec_out) {
			rsrc_data->secure_mode = mode;
			rsrc_data->common_data->secure_mode = mode;
		} else {
			if (mode == rsrc_data->common_data->secure_mode) {
				rsrc_data->secure_mode =
					rsrc_data->common_data->secure_mode;
			} else {
				rc = -EINVAL;
				CAM_ERR_RATE_LIMIT(CAM_ISP,
					"Mismatch: Acquire mode[%d], drvr mode[%d]",
					rsrc_data->common_data->secure_mode,
					mode);
				mutex_unlock(
					&rsrc_data->common_data->bus_mutex);
				return -EINVAL;
			}
		}
		rsrc_data->common_data->num_sec_out++;
	}
	mutex_unlock(&rsrc_data->common_data->bus_mutex);

	rsrc_data->num_wm = num_wm;
	rsrc_node->res_id = out_acquire_args->out_port_info->res_type;
	rsrc_node->tasklet_info = acq_args->tasklet;
	rsrc_node->cdm_ops = out_acquire_args->cdm_ops;
	rsrc_data->cdm_util_ops = out_acquire_args->cdm_ops;

	/* Reserve Composite Group */
		if (num_wm > 1 || (out_acquire_args->is_dual) ||
			(out_acquire_args->out_port_info->comp_grp_id >
			CAM_ISP_RES_COMP_GROUP_NONE &&
			out_acquire_args->out_port_info->comp_grp_id <
			CAM_ISP_RES_COMP_GROUP_ID_MAX)) {

		rc = cam_vfe_bus_acquire_comp_grp(ver2_bus_priv,
			out_acquire_args->out_port_info,
			acq_args->tasklet,
			out_acquire_args->ctx,
			out_acquire_args->unique_id,
			out_acquire_args->is_dual,
			out_acquire_args->is_master,
			out_acquire_args->dual_slave_core,
			&rsrc_data->comp_grp);
		if (rc) {
			CAM_ERR(CAM_ISP,
				"VFE%d Comp_Grp acquire fail for Out %d rc=%d",
				rsrc_data->common_data->core_index,
				vfe_out_res_id, rc);
			return rc;
		}

		subscribe_irq = 0;
	} else {
		subscribe_irq = 1;
	}

	/* Reserve WM */
	for (i = 0; i < num_wm; i++) {
		rc = cam_vfe_bus_acquire_wm(ver2_bus_priv,
			out_acquire_args->out_port_info,
			acq_args->tasklet,
			out_acquire_args->ctx,
			vfe_out_res_id,
			i,
			subscribe_irq,
			&rsrc_data->wm_res[i],
			&client_done_mask,
			out_acquire_args->is_dual);
		if (rc) {
			CAM_ERR(CAM_ISP,
				"VFE%d WM acquire failed for Out %d rc=%d",
				rsrc_data->common_data->core_index,
				vfe_out_res_id, rc);
			goto release_wm;
		}

		if (rsrc_data->comp_grp)
			cam_vfe_bus_add_wm_to_comp_grp(rsrc_data->comp_grp,
				client_done_mask);
	}

	rsrc_node->res_state = CAM_ISP_RESOURCE_STATE_RESERVED;
	out_acquire_args->rsrc_node = rsrc_node;

	CAM_DBG(CAM_ISP, "Acquire successful");
	return rc;

release_wm:
	for (i--; i >= 0; i--)
		cam_vfe_bus_release_wm(ver2_bus_priv, rsrc_data->wm_res[i]);

	cam_vfe_bus_release_comp_grp(ver2_bus_priv,
		rsrc_data->comp_grp);

	return rc;
}

static int cam_vfe_bus_release_vfe_out(void *bus_priv, void *release_args,
	uint32_t args_size)
{
	uint32_t i;
	struct cam_isp_resource_node          *vfe_out = NULL;
	struct cam_vfe_bus_ver2_vfe_out_data  *rsrc_data = NULL;
	uint32_t                               secure_caps = 0;

	if (!bus_priv || !release_args) {
		CAM_ERR(CAM_ISP, "Invalid input bus_priv %pK release_args %pK",
			bus_priv, release_args);
		return -EINVAL;
	}

	vfe_out = release_args;
	rsrc_data = vfe_out->res_priv;

	if (vfe_out->res_state != CAM_ISP_RESOURCE_STATE_RESERVED) {
		CAM_ERR(CAM_ISP, "Invalid resource state:%d",
			vfe_out->res_state);
	}

	for (i = 0; i < rsrc_data->num_wm; i++)
		cam_vfe_bus_release_wm(bus_priv, rsrc_data->wm_res[i]);
	rsrc_data->num_wm = 0;

	if (rsrc_data->comp_grp)
		cam_vfe_bus_release_comp_grp(bus_priv, rsrc_data->comp_grp);
	rsrc_data->comp_grp = NULL;

	vfe_out->tasklet_info = NULL;
	vfe_out->cdm_ops = NULL;
	rsrc_data->cdm_util_ops = NULL;

	secure_caps = cam_vfe_bus_can_be_secure(rsrc_data->out_type);
	mutex_lock(&rsrc_data->common_data->bus_mutex);
	if (secure_caps) {
		if (rsrc_data->secure_mode ==
			rsrc_data->common_data->secure_mode) {
			rsrc_data->common_data->num_sec_out--;
			rsrc_data->secure_mode =
				CAM_SECURE_MODE_NON_SECURE;
		} else {
			/*
			 * The validity of the mode is properly
			 * checked while acquiring the output port.
			 * not expected to reach here, unless there is
			 * some corruption.
			 */
			CAM_ERR(CAM_ISP, "driver[%d],resource[%d] mismatch",
				rsrc_data->common_data->secure_mode,
				rsrc_data->secure_mode);
		}

		if (!rsrc_data->common_data->num_sec_out)
			rsrc_data->common_data->secure_mode =
				CAM_SECURE_MODE_NON_SECURE;
	}
	mutex_unlock(&rsrc_data->common_data->bus_mutex);

	if (vfe_out->res_state == CAM_ISP_RESOURCE_STATE_RESERVED)
		vfe_out->res_state = CAM_ISP_RESOURCE_STATE_AVAILABLE;

	return 0;
}

static int cam_vfe_bus_start_vfe_out(
	struct cam_isp_resource_node          *vfe_out)
{
	int rc = 0, i;
	struct cam_vfe_bus_ver2_vfe_out_data  *rsrc_data = NULL;
	struct cam_vfe_bus_ver2_common_data   *common_data = NULL;

	if (!vfe_out) {
		CAM_ERR(CAM_ISP, "Invalid input");
		return -EINVAL;
	}

	rsrc_data = vfe_out->res_priv;
	common_data = rsrc_data->common_data;

	CAM_DBG(CAM_ISP, "Start resource index %d", rsrc_data->out_type);

	if (vfe_out->res_state != CAM_ISP_RESOURCE_STATE_RESERVED) {
		CAM_ERR(CAM_ISP, "Invalid resource state:%d",
			vfe_out->res_state);
		return -EACCES;
	}

	for (i = 0; i < rsrc_data->num_wm; i++)
		rc = cam_vfe_bus_start_wm(rsrc_data->wm_res[i]);

	if (rsrc_data->comp_grp)
		rc = cam_vfe_bus_start_comp_grp(rsrc_data->comp_grp);

	vfe_out->res_state = CAM_ISP_RESOURCE_STATE_STREAMING;
	return rc;
}

static int cam_vfe_bus_stop_vfe_out(
	struct cam_isp_resource_node          *vfe_out)
{
	int rc = 0, i;
	struct cam_vfe_bus_ver2_vfe_out_data  *rsrc_data = NULL;

	if (!vfe_out) {
		CAM_ERR(CAM_ISP, "Invalid input");
		return -EINVAL;
	}

	rsrc_data = vfe_out->res_priv;

	if (vfe_out->res_state == CAM_ISP_RESOURCE_STATE_AVAILABLE ||
		vfe_out->res_state == CAM_ISP_RESOURCE_STATE_RESERVED) {
		CAM_DBG(CAM_ISP, "vfe_out res_state is %d", vfe_out->res_state);
		return rc;
	}

	if (rsrc_data->comp_grp)
		rc = cam_vfe_bus_stop_comp_grp(rsrc_data->comp_grp);

	for (i = 0; i < rsrc_data->num_wm; i++)
		rc = cam_vfe_bus_stop_wm(rsrc_data->wm_res[i]);

	vfe_out->res_state = CAM_ISP_RESOURCE_STATE_RESERVED;
	return rc;
}

static int cam_vfe_bus_handle_vfe_out_done_top_half(uint32_t evt_id,
	struct cam_irq_th_payload *th_payload)
{
	return -EPERM;
}

static int cam_vfe_bus_handle_vfe_out_done_bottom_half(
	void                *handler_priv,
	void                *evt_payload_priv)
{
	int rc = -EINVAL;
	struct cam_isp_resource_node         *vfe_out = handler_priv;
	struct cam_vfe_bus_ver2_vfe_out_data *rsrc_data = vfe_out->res_priv;

	CAM_DBG(CAM_ISP, "vfe_out %d", rsrc_data->out_type);
	/*
	 * If this resource has Composite Group then we only handle
	 * Composite done. We acquire Composite if number of WM > 1.
	 * So Else case is only one individual buf_done = WM[0].
	 */
	if (rsrc_data->comp_grp) {
		rc = rsrc_data->comp_grp->bottom_half_handler(
			rsrc_data->comp_grp, evt_payload_priv);
	} else {
		rc = rsrc_data->wm_res[0]->bottom_half_handler(
			rsrc_data->wm_res[0], evt_payload_priv);
	}

	return rc;
}

static int cam_vfe_bus_init_vfe_out_resource(uint32_t  index,
	struct cam_vfe_bus_ver2_priv                  *ver2_bus_priv,
	struct cam_vfe_bus_ver2_hw_info               *ver2_hw_info)
{
	struct cam_isp_resource_node         *vfe_out = NULL;
	struct cam_vfe_bus_ver2_vfe_out_data *rsrc_data = NULL;
	int rc = 0;
	int32_t vfe_out_type =
		ver2_hw_info->vfe_out_hw_info[index].vfe_out_type;

	if (vfe_out_type < 0 ||
		vfe_out_type >= CAM_VFE_BUS_VER2_VFE_OUT_MAX) {
		CAM_ERR(CAM_ISP, "Init VFE Out failed, Invalid type=%d",
			vfe_out_type);
		return -EINVAL;
	}

	vfe_out = &ver2_bus_priv->vfe_out[vfe_out_type];
	if (vfe_out->res_state != CAM_ISP_RESOURCE_STATE_UNAVAILABLE ||
		vfe_out->res_priv) {
		CAM_ERR(CAM_ISP,
			"Error. Looks like same resource is init again");
		return -EFAULT;
	}

	rsrc_data = kzalloc(sizeof(struct cam_vfe_bus_ver2_vfe_out_data),
		GFP_KERNEL);
	if (!rsrc_data) {
		rc = -ENOMEM;
		return rc;
	}

	vfe_out->res_priv = rsrc_data;

	vfe_out->res_type = CAM_ISP_RESOURCE_VFE_OUT;
	vfe_out->res_state = CAM_ISP_RESOURCE_STATE_AVAILABLE;
	INIT_LIST_HEAD(&vfe_out->list);

	rsrc_data->out_type    =
		ver2_hw_info->vfe_out_hw_info[index].vfe_out_type;
	rsrc_data->common_data = &ver2_bus_priv->common_data;
	rsrc_data->max_width   =
		ver2_hw_info->vfe_out_hw_info[index].max_width;
	rsrc_data->max_height  =
		ver2_hw_info->vfe_out_hw_info[index].max_height;
	rsrc_data->secure_mode = CAM_SECURE_MODE_NON_SECURE;

	vfe_out->start = cam_vfe_bus_start_vfe_out;
	vfe_out->stop = cam_vfe_bus_stop_vfe_out;
	vfe_out->top_half_handler = cam_vfe_bus_handle_vfe_out_done_top_half;
	vfe_out->bottom_half_handler =
		cam_vfe_bus_handle_vfe_out_done_bottom_half;
	vfe_out->process_cmd = cam_vfe_bus_process_cmd;
	vfe_out->hw_intf = ver2_bus_priv->common_data.hw_intf;

	return 0;
}

static int cam_vfe_bus_deinit_vfe_out_resource(
	struct cam_isp_resource_node    *vfe_out)
{
	struct cam_vfe_bus_ver2_vfe_out_data *rsrc_data = vfe_out->res_priv;

	if (vfe_out->res_state == CAM_ISP_RESOURCE_STATE_UNAVAILABLE) {
		/*
		 * This is not error. It can happen if the resource is
		 * never supported in the HW.
		 */
		CAM_DBG(CAM_ISP, "HW%d Res %d already deinitialized");
		return 0;
	}

	vfe_out->start = NULL;
	vfe_out->stop = NULL;
	vfe_out->top_half_handler = NULL;
	vfe_out->bottom_half_handler = NULL;
	vfe_out->hw_intf = NULL;

	vfe_out->res_state = CAM_ISP_RESOURCE_STATE_UNAVAILABLE;
	INIT_LIST_HEAD(&vfe_out->list);
	vfe_out->res_priv = NULL;

	if (!rsrc_data)
		return -ENOMEM;
	kfree(rsrc_data);

	return 0;
}

static int cam_vfe_bus_ver2_handle_irq(uint32_t    evt_id,
	struct cam_irq_th_payload                 *th_payload)
{
	struct cam_vfe_bus_ver2_priv          *bus_priv;

	bus_priv     = th_payload->handler_priv;
	CAM_DBG(CAM_ISP, "Enter");
	return cam_irq_controller_handle_irq(evt_id,
		bus_priv->common_data.bus_irq_controller);
}

static int cam_vfe_bus_error_irq_top_half(uint32_t evt_id,
	struct cam_irq_th_payload *th_payload)
{
	int i = 0;
	struct cam_vfe_bus_ver2_priv *bus_priv =
		th_payload->handler_priv;

	CAM_ERR_RATE_LIMIT(CAM_ISP, "Bus Err IRQ");
	for (i = 0; i < th_payload->num_registers; i++) {
		CAM_ERR_RATE_LIMIT(CAM_ISP, "vfe:%d: IRQ_Status%d: 0x%x",
		bus_priv->common_data.core_index, i,
			th_payload->evt_status_arr[i]);
	}
	cam_irq_controller_disable_irq(bus_priv->common_data.bus_irq_controller,
		bus_priv->error_irq_handle);

	/* Returning error stops from enqueuing bottom half */
	return -EFAULT;
}

static int cam_vfe_bus_update_wm(void *priv, void *cmd_args,
	uint32_t arg_size)
{
	struct cam_vfe_bus_ver2_priv             *bus_priv;
	struct cam_isp_hw_get_cmd_update         *update_buf;
	struct cam_buf_io_cfg                    *io_cfg;
	struct cam_vfe_bus_ver2_vfe_out_data     *vfe_out_data = NULL;
	struct cam_vfe_bus_ver2_wm_resource_data *wm_data = NULL;
	struct cam_vfe_bus_ver2_reg_offset_ubwc_client *ubwc_client = NULL;
	uint32_t *reg_val_pair;
	uint32_t  i, j, size = 0;
	uint32_t  frame_inc = 0, ubwc_bw_limit = 0, camera_hw_version, val;
	int rc = 0;

	bus_priv = (struct cam_vfe_bus_ver2_priv  *) priv;
	update_buf =  (struct cam_isp_hw_get_cmd_update *) cmd_args;

	vfe_out_data = (struct cam_vfe_bus_ver2_vfe_out_data *)
		update_buf->res->res_priv;

	if (!vfe_out_data || !vfe_out_data->cdm_util_ops) {
		CAM_ERR(CAM_ISP, "Failed! Invalid data");
		return -EINVAL;
	}

	if (update_buf->wm_update->num_buf != vfe_out_data->num_wm) {
		CAM_ERR(CAM_ISP,
			"Failed! Invalid number buffers:%d required:%d",
			update_buf->wm_update->num_buf, vfe_out_data->num_wm);
		return -EINVAL;
	}

	reg_val_pair = &vfe_out_data->common_data->io_buf_update[0];
	io_cfg = update_buf->wm_update->io_cfg;

	for (i = 0, j = 0; i < vfe_out_data->num_wm; i++) {
		if (j >= (MAX_REG_VAL_PAIR_SIZE - MAX_BUF_UPDATE_REG_NUM * 2)) {
			CAM_ERR(CAM_ISP,
				"reg_val_pair %d exceeds the array limit %lu",
				j, MAX_REG_VAL_PAIR_SIZE);
			return -ENOMEM;
		}

		wm_data = vfe_out_data->wm_res[i]->res_priv;
		ubwc_client = wm_data->hw_regs->ubwc_regs;
		/* update width register */
		CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
			wm_data->hw_regs->buffer_width_cfg,
			wm_data->width);
		CAM_DBG(CAM_ISP, "WM %d image width 0x%x",
			wm_data->index, reg_val_pair[j-1]);

		/* For initial configuration program all bus registers */
		val = io_cfg->planes[i].plane_stride;
		CAM_DBG(CAM_ISP, "before stride %d", val);
		val = ALIGNUP(val, 16);
		if (val != io_cfg->planes[i].plane_stride &&
			val != wm_data->stride)
			CAM_WARN(CAM_ISP,
				"Warning stride %u expected %u",
				io_cfg->planes[i].plane_stride,
				val);

		if ((wm_data->stride != val ||
			!wm_data->init_cfg_done) && (wm_data->index >= 3)) {
			CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
				wm_data->hw_regs->stride,
				io_cfg->planes[i].plane_stride);
			wm_data->stride = val;
			CAM_DBG(CAM_ISP, "WM %d image stride 0x%x",
				wm_data->index, reg_val_pair[j-1]);
		}

		if (wm_data->en_ubwc) {
			if (!wm_data->hw_regs->ubwc_regs) {
				CAM_ERR(CAM_ISP,
					"No UBWC register to configure.");
				return -EINVAL;
			}
			if (wm_data->packer_cfg !=
				io_cfg->planes[i].packer_config ||
				!wm_data->init_cfg_done) {
				CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
					wm_data->hw_regs->packer_cfg,
					io_cfg->planes[i].packer_config);
				wm_data->packer_cfg =
					io_cfg->planes[i].packer_config;
				CAM_DBG(CAM_ISP, "WM %d packer cfg 0x%x",
					wm_data->index, reg_val_pair[j-1]);
			}

			if (wm_data->is_dual) {
				CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
					wm_data->hw_regs->ubwc_regs->tile_cfg,
					wm_data->tile_cfg);
			} else if ((wm_data->tile_cfg !=
				io_cfg->planes[i].tile_config)
				|| !wm_data->init_cfg_done) {
				CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
					wm_data->hw_regs->ubwc_regs->tile_cfg,
					io_cfg->planes[i].tile_config);
				wm_data->tile_cfg =
					io_cfg->planes[i].tile_config;
				CAM_DBG(CAM_ISP, "WM %d tile cfg 0x%x",
					wm_data->index, reg_val_pair[j-1]);
			}

			if (wm_data->is_dual) {
				if ((wm_data->h_init != wm_data->offset) ||
					!wm_data->init_cfg_done) {
					/*
					 * For dual ife h init value need to
					 * take from offset.  Striping config
					 * update offset value.
					 */
					CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair,
						j, ubwc_client->h_init,
						wm_data->offset);
					wm_data->h_init = wm_data->offset;
				}
			} else if (wm_data->h_init !=
				io_cfg->planes[i].h_init ||
				!wm_data->init_cfg_done) {
				CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
					wm_data->hw_regs->ubwc_regs->h_init,
					io_cfg->planes[i].h_init);
				wm_data->h_init = io_cfg->planes[i].h_init;
				CAM_DBG(CAM_ISP, "WM %d h_init 0x%x",
					wm_data->index, reg_val_pair[j-1]);
			}

			if (wm_data->v_init != io_cfg->planes[i].v_init ||
				!wm_data->init_cfg_done) {
				CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
					wm_data->hw_regs->ubwc_regs->v_init,
					io_cfg->planes[i].v_init);
				wm_data->v_init = io_cfg->planes[i].v_init;
				CAM_DBG(CAM_ISP, "WM %d v_init 0x%x",
					wm_data->index, reg_val_pair[j-1]);
			}

			if (wm_data->ubwc_meta_stride !=
				io_cfg->planes[i].meta_stride ||
				!wm_data->init_cfg_done) {
				CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
					ubwc_client->meta_stride,
					io_cfg->planes[i].meta_stride);
				wm_data->ubwc_meta_stride =
					io_cfg->planes[i].meta_stride;
				CAM_DBG(CAM_ISP, "WM %d meta stride 0x%x",
					wm_data->index, reg_val_pair[j-1]);
			}

			if (wm_data->ubwc_mode_cfg !=
				io_cfg->planes[i].mode_config ||
				!wm_data->init_cfg_done) {
				CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
					wm_data->hw_regs->ubwc_regs->mode_cfg,
					io_cfg->planes[i].mode_config);
				wm_data->ubwc_mode_cfg =
					io_cfg->planes[i].mode_config;
				CAM_DBG(CAM_ISP, "WM %d ubwc mode cfg 0x%x",
					wm_data->index, reg_val_pair[j-1]);
			}

			if (wm_data->ubwc_meta_offset !=
				io_cfg->planes[i].meta_offset ||
				!wm_data->init_cfg_done) {
				CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
					ubwc_client->meta_offset,
					io_cfg->planes[i].meta_offset);
				wm_data->ubwc_meta_offset =
					io_cfg->planes[i].meta_offset;
				CAM_DBG(CAM_ISP, "WM %d ubwc meta offset 0x%x",
					wm_data->index, reg_val_pair[j-1]);
			}

			/* UBWC meta address */
			CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
				wm_data->hw_regs->ubwc_regs->meta_addr,
				update_buf->wm_update->image_buf[i]);
			CAM_DBG(CAM_ISP, "WM %d ubwc meta addr 0x%llx",
				wm_data->index,
				update_buf->wm_update->image_buf[i]);

			/* Enable UBWC bandwidth limit if required */
			rc = cam_cpas_get_cpas_hw_version(&camera_hw_version);
			if (camera_hw_version == CAM_CPAS_TITAN_170_V110
					&& !rc) {
				switch (wm_data->format) {
				case CAM_FORMAT_UBWC_TP10:
					ubwc_bw_limit = 0x8 | BIT(0);
					break;
				case CAM_FORMAT_UBWC_NV12_4R:
					ubwc_bw_limit = 0xB | BIT(0);
					break;
				default:
					ubwc_bw_limit = 0;
					break;
				}
			}

			if (ubwc_bw_limit) {
				CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
					wm_data->hw_regs->ubwc_regs->bw_limit,
					ubwc_bw_limit);
				CAM_DBG(CAM_ISP, "WM %d ubwc bw limit 0x%x",
					wm_data->index, ubwc_bw_limit);
			}
		}

		/* WM Image address */
		if (wm_data->en_ubwc)
			CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
				wm_data->hw_regs->image_addr,
				(update_buf->wm_update->image_buf[i] +
				io_cfg->planes[i].meta_size));
		else
			CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
				wm_data->hw_regs->image_addr,
				update_buf->wm_update->image_buf[i] +
				wm_data->offset);
		CAM_DBG(CAM_ISP, "WM %d image address 0x%x",
			wm_data->index, reg_val_pair[j-1]);

		if (wm_data->en_ubwc) {
			frame_inc = ALIGNUP(io_cfg->planes[i].plane_stride *
			    io_cfg->planes[i].slice_height, 4096);
			frame_inc += io_cfg->planes[i].meta_size;
			CAM_DBG(CAM_ISP,
				"WM %d frm %d: ht: %d stride %d meta: %d",
				wm_data->index, frame_inc,
				io_cfg->planes[i].slice_height,
				io_cfg->planes[i].plane_stride,
				io_cfg->planes[i].meta_size);
		} else {
			frame_inc = io_cfg->planes[i].plane_stride *
				io_cfg->planes[i].slice_height;
		}

		CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
			wm_data->hw_regs->frame_inc, frame_inc);
		CAM_DBG(CAM_ISP, "WM %d frame_inc %d",
			wm_data->index, reg_val_pair[j-1]);


		/* enable the WM */
		CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
			wm_data->hw_regs->cfg,
			wm_data->en_cfg);

		/* set initial configuration done */
		if (!wm_data->init_cfg_done)
			wm_data->init_cfg_done = true;
	}

	size = vfe_out_data->cdm_util_ops->cdm_required_size_reg_random(j/2);

	/* cdm util returns dwords, need to convert to bytes */
	if ((size * 4) > update_buf->cmd.size) {
		CAM_ERR(CAM_ISP,
			"Failed! Buf size:%d insufficient, expected size:%d",
			update_buf->cmd.size, size);
		return -ENOMEM;
	}

	vfe_out_data->cdm_util_ops->cdm_write_regrandom(
		update_buf->cmd.cmd_buf_addr, j/2, reg_val_pair);

	/* cdm util returns dwords, need to convert to bytes */
	update_buf->cmd.used_bytes = size * 4;

	return 0;
}

static int cam_vfe_bus_update_hfr(void *priv, void *cmd_args,
	uint32_t arg_size)
{
	struct cam_vfe_bus_ver2_priv             *bus_priv;
	struct cam_isp_hw_get_cmd_update         *update_hfr;
	struct cam_vfe_bus_ver2_vfe_out_data     *vfe_out_data = NULL;
	struct cam_vfe_bus_ver2_wm_resource_data *wm_data = NULL;
	struct cam_isp_port_hfr_config           *hfr_cfg = NULL;
	uint32_t *reg_val_pair;
	uint32_t  i, j, size = 0;

	bus_priv = (struct cam_vfe_bus_ver2_priv  *) priv;
	update_hfr =  (struct cam_isp_hw_get_cmd_update *) cmd_args;

	vfe_out_data = (struct cam_vfe_bus_ver2_vfe_out_data *)
		update_hfr->res->res_priv;

	if (!vfe_out_data || !vfe_out_data->cdm_util_ops) {
		CAM_ERR(CAM_ISP, "Failed! Invalid data");
		return -EINVAL;
	}

	reg_val_pair = &vfe_out_data->common_data->io_buf_update[0];
	hfr_cfg = update_hfr->hfr_update;

	for (i = 0, j = 0; i < vfe_out_data->num_wm; i++) {
		if (j >= (MAX_REG_VAL_PAIR_SIZE - MAX_BUF_UPDATE_REG_NUM * 2)) {
			CAM_ERR(CAM_ISP,
				"reg_val_pair %d exceeds the array limit %lu",
				j, MAX_REG_VAL_PAIR_SIZE);
			return -ENOMEM;
		}

		wm_data = vfe_out_data->wm_res[i]->res_priv;

		if ((wm_data->framedrop_pattern !=
			hfr_cfg->framedrop_pattern) ||
			!wm_data->hfr_cfg_done) {
			CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
				wm_data->hw_regs->framedrop_pattern,
				hfr_cfg->framedrop_pattern);
			wm_data->framedrop_pattern = hfr_cfg->framedrop_pattern;
			CAM_DBG(CAM_ISP, "WM %d framedrop pattern 0x%x",
				wm_data->index, wm_data->framedrop_pattern);
		}

		if (wm_data->framedrop_period != hfr_cfg->framedrop_period ||
			!wm_data->hfr_cfg_done) {
			CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
				wm_data->hw_regs->framedrop_period,
				hfr_cfg->framedrop_period);
			wm_data->framedrop_period = hfr_cfg->framedrop_period;
			CAM_DBG(CAM_ISP, "WM %d framedrop period 0x%x",
				wm_data->index, wm_data->framedrop_period);
		}

		if (wm_data->irq_subsample_period != hfr_cfg->subsample_period
			|| !wm_data->hfr_cfg_done) {
			CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
				wm_data->hw_regs->irq_subsample_period,
				hfr_cfg->subsample_period);
			wm_data->irq_subsample_period =
				hfr_cfg->subsample_period;
			CAM_DBG(CAM_ISP, "WM %d irq subsample period 0x%x",
				wm_data->index, wm_data->irq_subsample_period);
		}

		if (wm_data->irq_subsample_pattern != hfr_cfg->subsample_pattern
			|| !wm_data->hfr_cfg_done) {
			CAM_VFE_ADD_REG_VAL_PAIR(reg_val_pair, j,
				wm_data->hw_regs->irq_subsample_pattern,
				hfr_cfg->subsample_pattern);
			wm_data->irq_subsample_pattern =
				hfr_cfg->subsample_pattern;
			CAM_DBG(CAM_ISP, "WM %d irq subsample pattern 0x%x",
				wm_data->index, wm_data->irq_subsample_pattern);
		}

		/* set initial configuration done */
		if (!wm_data->hfr_cfg_done)
			wm_data->hfr_cfg_done = true;
	}

	size = vfe_out_data->cdm_util_ops->cdm_required_size_reg_random(j/2);

	/* cdm util returns dwords, need to convert to bytes */
	if ((size * 4) > update_hfr->cmd.size) {
		CAM_ERR(CAM_ISP,
			"Failed! Buf size:%d insufficient, expected size:%d",
			update_hfr->cmd.size, size);
		return -ENOMEM;
	}

	vfe_out_data->cdm_util_ops->cdm_write_regrandom(
		update_hfr->cmd.cmd_buf_addr, j/2, reg_val_pair);

	/* cdm util returns dwords, need to convert to bytes */
	update_hfr->cmd.used_bytes = size * 4;

	return 0;
}

static int cam_vfe_bus_update_stripe_cfg(void *priv, void *cmd_args,
	uint32_t arg_size)
{
	struct cam_vfe_bus_ver2_priv                *bus_priv;
	struct cam_isp_hw_dual_isp_update_args      *stripe_args;
	struct cam_vfe_bus_ver2_vfe_out_data        *vfe_out_data = NULL;
	struct cam_vfe_bus_ver2_wm_resource_data    *wm_data = NULL;
	struct cam_isp_dual_stripe_config           *stripe_config;
	uint32_t outport_id, ports_plane_idx, i;

	bus_priv = (struct cam_vfe_bus_ver2_priv  *) priv;
	stripe_args = (struct cam_isp_hw_dual_isp_update_args *)cmd_args;

	vfe_out_data = (struct cam_vfe_bus_ver2_vfe_out_data *)
		stripe_args->res->res_priv;

	if (!vfe_out_data) {
		CAM_ERR(CAM_ISP, "Failed! Invalid data");
		return -EINVAL;
	}

	outport_id = stripe_args->res->res_id & 0xFF;
	if (stripe_args->res->res_id < CAM_ISP_IFE_OUT_RES_BASE ||
		stripe_args->res->res_id >= CAM_ISP_IFE_OUT_RES_MAX)
		return 0;

	ports_plane_idx = (stripe_args->split_id *
	(stripe_args->dual_cfg->num_ports * CAM_PACKET_MAX_PLANES)) +
	(outport_id * CAM_PACKET_MAX_PLANES);
	for (i = 0; i < vfe_out_data->num_wm; i++) {
		wm_data = vfe_out_data->wm_res[i]->res_priv;
		stripe_config = (struct cam_isp_dual_stripe_config  *)
			&stripe_args->dual_cfg->stripes[ports_plane_idx + i];
		wm_data->width = stripe_config->width;
		wm_data->offset = stripe_config->offset;
		wm_data->tile_cfg = stripe_config->tileconfig;
		CAM_DBG(CAM_ISP, "id:%x wm:%d width:0x%x offset:%x tilecfg:%x",
			stripe_args->res->res_id, i, wm_data->width,
			wm_data->offset, wm_data->tile_cfg);
	}

	return 0;
}

static int cam_vfe_bus_start_hw(void *hw_priv,
	void *start_hw_args, uint32_t arg_size)
{
	return cam_vfe_bus_start_vfe_out(hw_priv);
}

static int cam_vfe_bus_stop_hw(void *hw_priv,
	void *stop_hw_args, uint32_t arg_size)
{
	return cam_vfe_bus_stop_vfe_out(hw_priv);
}

static int cam_vfe_bus_init_hw(void *hw_priv,
	void *init_hw_args, uint32_t arg_size)
{
	struct cam_vfe_bus_ver2_priv    *bus_priv = hw_priv;
	uint32_t                         top_irq_reg_mask[2] = {0};

	if (!bus_priv) {
		CAM_ERR(CAM_ISP, "Invalid args");
		return -EINVAL;
	}

	top_irq_reg_mask[0] = (1 << 9);

	bus_priv->irq_handle = cam_irq_controller_subscribe_irq(
		bus_priv->common_data.vfe_irq_controller,
		CAM_IRQ_PRIORITY_2,
		top_irq_reg_mask,
		bus_priv,
		cam_vfe_bus_ver2_handle_irq,
		NULL,
		NULL,
		NULL);

	if (bus_priv->irq_handle <= 0) {
		CAM_ERR(CAM_ISP, "Failed to subscribe BUS IRQ");
		return -EFAULT;
	}

	bus_priv->error_irq_handle = cam_irq_controller_subscribe_irq(
		bus_priv->common_data.bus_irq_controller,
		CAM_IRQ_PRIORITY_0,
		bus_error_irq_mask,
		bus_priv,
		cam_vfe_bus_error_irq_top_half,
		NULL,
		NULL,
		NULL);

	if (bus_priv->irq_handle <= 0) {
		CAM_ERR(CAM_ISP, "Failed to subscribe BUS IRQ");
		return -EFAULT;
	}

	/* BUS_WR_INPUT_IF_ADDR_SYNC_FRAME_HEADER */
	cam_io_w_mb(0x0, bus_priv->common_data.mem_base +
		bus_priv->common_data.common_reg->addr_sync_frame_hdr);

	/* no clock gating at bus input */
	cam_io_w_mb(0xFFFFF, bus_priv->common_data.mem_base + 0x0000200C);

	/* BUS_WR_TEST_BUS_CTRL */
	cam_io_w_mb(0x0, bus_priv->common_data.mem_base + 0x0000211C);

	/* if addr_no_sync has default value then config the addr no sync reg */
	cam_io_w_mb(CAM_VFE_BUS_ADDR_NO_SYNC_DEFAULT_VAL,
		bus_priv->common_data.mem_base +
		bus_priv->common_data.common_reg->addr_sync_no_sync);

	return 0;
}

static int cam_vfe_bus_deinit_hw(void *hw_priv,
	void *deinit_hw_args, uint32_t arg_size)
{
	struct cam_vfe_bus_ver2_priv    *bus_priv = hw_priv;
	int                              rc = 0;

	if (!bus_priv) {
		CAM_ERR(CAM_ISP, "Error: Invalid args");
		return -EINVAL;
	}

	if (bus_priv->error_irq_handle) {
		rc = cam_irq_controller_unsubscribe_irq(
			bus_priv->common_data.bus_irq_controller,
			bus_priv->error_irq_handle);
		if (rc)
			CAM_ERR(CAM_ISP,
				"Failed to unsubscribe error irq rc=%d", rc);

		bus_priv->error_irq_handle = 0;
	}

	if (bus_priv->irq_handle) {
		rc = cam_irq_controller_unsubscribe_irq(
			bus_priv->common_data.vfe_irq_controller,
			bus_priv->irq_handle);
		if (rc)
			CAM_ERR(CAM_ISP,
				"Failed to unsubscribe irq rc=%d", rc);

		bus_priv->irq_handle = 0;
	}

	return rc;
}

static int __cam_vfe_bus_process_cmd(void *priv,
	uint32_t cmd_type, void *cmd_args, uint32_t arg_size)
{
	return cam_vfe_bus_process_cmd(priv, cmd_type, cmd_args, arg_size);
}

static int cam_vfe_bus_process_cmd(
	struct cam_isp_resource_node *priv,
	uint32_t cmd_type, void *cmd_args, uint32_t arg_size)
{
	int rc = -EINVAL;
	struct cam_vfe_bus_ver2_priv		 *bus_priv;

	if (!priv || !cmd_args) {
		CAM_ERR_RATE_LIMIT(CAM_ISP, "Invalid input arguments");
		return -EINVAL;
	}

	switch (cmd_type) {
	case CAM_ISP_HW_CMD_GET_BUF_UPDATE:
		rc = cam_vfe_bus_update_wm(priv, cmd_args, arg_size);
		break;
	case CAM_ISP_HW_CMD_GET_HFR_UPDATE:
		rc = cam_vfe_bus_update_hfr(priv, cmd_args, arg_size);
		break;
	case CAM_ISP_HW_CMD_GET_SECURE_MODE:
		rc = cam_vfe_bus_get_secure_mode(priv, cmd_args, arg_size);
		break;
	case CAM_ISP_HW_CMD_STRIPE_UPDATE:
		rc = cam_vfe_bus_update_stripe_cfg(priv, cmd_args, arg_size);
		break;
	case CAM_ISP_HW_CMD_STOP_BUS_ERR_IRQ:
		bus_priv = (struct cam_vfe_bus_ver2_priv  *) priv;
		if (bus_priv->error_irq_handle) {
			CAM_DBG(CAM_ISP, "Mask off bus error irq handler");
			rc = cam_irq_controller_unsubscribe_irq(
				bus_priv->common_data.bus_irq_controller,
				bus_priv->error_irq_handle);
			if (rc)
				CAM_ERR(CAM_ISP,
					"Failed to unsubscribe error irq rc=%d",
					rc);

			bus_priv->error_irq_handle = 0;
		}
		break;
	default:
		CAM_ERR_RATE_LIMIT(CAM_ISP, "Invalid camif process command:%d",
			cmd_type);
		break;
	}

	return rc;
}

int cam_vfe_bus_ver2_init(
	struct cam_hw_soc_info               *soc_info,
	struct cam_hw_intf                   *hw_intf,
	void                                 *bus_hw_info,
	void                                 *vfe_irq_controller,
	struct cam_vfe_bus                  **vfe_bus)
{
	int i, rc = 0;
	struct cam_vfe_bus_ver2_priv    *bus_priv = NULL;
	struct cam_vfe_bus              *vfe_bus_local;
	struct cam_vfe_bus_ver2_hw_info *ver2_hw_info = bus_hw_info;

	CAM_DBG(CAM_ISP, "Enter");

	if (!soc_info || !hw_intf || !bus_hw_info || !vfe_irq_controller) {
		CAM_ERR(CAM_ISP,
			"Inval_prms soc_info:%pK hw_intf:%pK hw_info%pK",
			soc_info, hw_intf, bus_hw_info);
		CAM_ERR(CAM_ISP, "controller: %pK", vfe_irq_controller);
		rc = -EINVAL;
		goto end;
	}

	vfe_bus_local = kzalloc(sizeof(struct cam_vfe_bus), GFP_KERNEL);
	if (!vfe_bus_local) {
		CAM_DBG(CAM_ISP, "Failed to alloc for vfe_bus");
		rc = -ENOMEM;
		goto end;
	}

	bus_priv = kzalloc(sizeof(struct cam_vfe_bus_ver2_priv),
		GFP_KERNEL);
	if (!bus_priv) {
		CAM_DBG(CAM_ISP, "Failed to alloc for vfe_bus_priv");
		rc = -ENOMEM;
		goto free_bus_local;
	}
	vfe_bus_local->bus_priv = bus_priv;

	bus_priv->num_client                     = ver2_hw_info->num_client;
	bus_priv->num_out                        = ver2_hw_info->num_out;
	bus_priv->common_data.num_sec_out        = 0;
	bus_priv->common_data.secure_mode        = CAM_SECURE_MODE_NON_SECURE;
	bus_priv->common_data.core_index         = soc_info->index;
	bus_priv->common_data.mem_base           =
		CAM_SOC_GET_REG_MAP_START(soc_info, VFE_CORE_BASE_IDX);
	bus_priv->common_data.hw_intf            = hw_intf;
	bus_priv->common_data.vfe_irq_controller = vfe_irq_controller;
	bus_priv->common_data.common_reg         = &ver2_hw_info->common_reg;
	bus_priv->common_data.addr_no_sync       =
		CAM_VFE_BUS_ADDR_NO_SYNC_DEFAULT_VAL;

	mutex_init(&bus_priv->common_data.bus_mutex);

	rc = cam_irq_controller_init(drv_name, bus_priv->common_data.mem_base,
		&ver2_hw_info->common_reg.irq_reg_info,
		&bus_priv->common_data.bus_irq_controller);
	if (rc) {
		CAM_ERR(CAM_ISP, "cam_irq_controller_init failed");
		goto free_bus_priv;
	}

	INIT_LIST_HEAD(&bus_priv->free_comp_grp);
	INIT_LIST_HEAD(&bus_priv->free_dual_comp_grp);
	INIT_LIST_HEAD(&bus_priv->used_comp_grp);

	for (i = 0; i < bus_priv->num_client; i++) {
		rc = cam_vfe_bus_init_wm_resource(i, bus_priv, bus_hw_info,
			&bus_priv->bus_client[i]);
		if (rc < 0) {
			CAM_ERR(CAM_ISP, "Init WM failed rc=%d", rc);
			goto deinit_wm;
		}
	}

	for (i = 0; i < CAM_VFE_BUS_VER2_COMP_GRP_MAX; i++) {
		rc = cam_vfe_bus_init_comp_grp(i, bus_priv, bus_hw_info,
			&bus_priv->comp_grp[i]);
		if (rc < 0) {
			CAM_ERR(CAM_ISP, "Init Comp Grp failed rc=%d", rc);
			goto deinit_comp_grp;
		}
	}

	for (i = 0; i < bus_priv->num_out; i++) {
		rc = cam_vfe_bus_init_vfe_out_resource(i, bus_priv,
			bus_hw_info);
		if (rc < 0) {
			CAM_ERR(CAM_ISP, "Init VFE Out failed rc=%d", rc);
			goto deinit_vfe_out;
		}
	}

	INIT_LIST_HEAD(&bus_priv->common_data.free_payload_list);
	for (i = 0; i < CAM_VFE_BUS_VER2_PAYLOAD_MAX; i++) {
		INIT_LIST_HEAD(&bus_priv->common_data.evt_payload[i].list);
		list_add_tail(&bus_priv->common_data.evt_payload[i].list,
			&bus_priv->common_data.free_payload_list);
	}

	vfe_bus_local->hw_ops.reserve      = cam_vfe_bus_acquire_vfe_out;
	vfe_bus_local->hw_ops.release      = cam_vfe_bus_release_vfe_out;
	vfe_bus_local->hw_ops.start        = cam_vfe_bus_start_hw;
	vfe_bus_local->hw_ops.stop         = cam_vfe_bus_stop_hw;
	vfe_bus_local->hw_ops.init         = cam_vfe_bus_init_hw;
	vfe_bus_local->hw_ops.deinit       = cam_vfe_bus_deinit_hw;
	vfe_bus_local->top_half_handler    = cam_vfe_bus_ver2_handle_irq;
	vfe_bus_local->bottom_half_handler = NULL;
	vfe_bus_local->hw_ops.process_cmd  = __cam_vfe_bus_process_cmd;

	*vfe_bus = vfe_bus_local;

	CAM_DBG(CAM_ISP, "Exit");
	return rc;

deinit_vfe_out:
	if (i < 0)
		i = CAM_VFE_BUS_VER2_VFE_OUT_MAX;
	for (--i; i >= 0; i--)
		cam_vfe_bus_deinit_vfe_out_resource(&bus_priv->vfe_out[i]);

deinit_comp_grp:
	if (i < 0)
		i = CAM_VFE_BUS_VER2_COMP_GRP_MAX;
	for (--i; i >= 0; i--)
		cam_vfe_bus_deinit_comp_grp(&bus_priv->comp_grp[i]);

deinit_wm:
	if (i < 0)
		i = bus_priv->num_client;
	for (--i; i >= 0; i--)
		cam_vfe_bus_deinit_wm_resource(&bus_priv->bus_client[i]);

free_bus_priv:
	kfree(vfe_bus_local->bus_priv);

free_bus_local:
	kfree(vfe_bus_local);

end:
	return rc;
}

int cam_vfe_bus_ver2_deinit(
	struct cam_vfe_bus                  **vfe_bus)
{
	int i, rc = 0;
	struct cam_vfe_bus_ver2_priv    *bus_priv = NULL;
	struct cam_vfe_bus              *vfe_bus_local;

	if (!vfe_bus || !*vfe_bus) {
		CAM_ERR(CAM_ISP, "Invalid input");
		return -EINVAL;
	}
	vfe_bus_local = *vfe_bus;

	bus_priv = vfe_bus_local->bus_priv;
	if (!bus_priv) {
		CAM_ERR(CAM_ISP, "bus_priv is NULL");
		rc = -ENODEV;
		goto free_bus_local;
	}

	INIT_LIST_HEAD(&bus_priv->common_data.free_payload_list);
	for (i = 0; i < CAM_VFE_BUS_VER2_PAYLOAD_MAX; i++)
		INIT_LIST_HEAD(&bus_priv->common_data.evt_payload[i].list);

	for (i = 0; i < bus_priv->num_client; i++) {
		rc = cam_vfe_bus_deinit_wm_resource(&bus_priv->bus_client[i]);
		if (rc < 0)
			CAM_ERR(CAM_ISP,
				"Deinit WM failed rc=%d", rc);
	}

	for (i = 0; i < CAM_VFE_BUS_VER2_COMP_GRP_MAX; i++) {
		rc = cam_vfe_bus_deinit_comp_grp(&bus_priv->comp_grp[i]);
		if (rc < 0)
			CAM_ERR(CAM_ISP,
				"Deinit Comp Grp failed rc=%d", rc);
	}

	for (i = 0; i < CAM_VFE_BUS_VER2_VFE_OUT_MAX; i++) {
		rc = cam_vfe_bus_deinit_vfe_out_resource(&bus_priv->vfe_out[i]);
		if (rc < 0)
			CAM_ERR(CAM_ISP,
				"Deinit VFE Out failed rc=%d", rc);
	}

	INIT_LIST_HEAD(&bus_priv->free_comp_grp);
	INIT_LIST_HEAD(&bus_priv->free_dual_comp_grp);
	INIT_LIST_HEAD(&bus_priv->used_comp_grp);

	rc = cam_irq_controller_deinit(
		&bus_priv->common_data.bus_irq_controller);
	if (rc)
		CAM_ERR(CAM_ISP,
			"Deinit IRQ Controller failed rc=%d", rc);

	mutex_destroy(&bus_priv->common_data.bus_mutex);
	kfree(vfe_bus_local->bus_priv);

free_bus_local:
	kfree(vfe_bus_local);

	*vfe_bus = NULL;

	return rc;
}