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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * HSI clients registration interface4 *5 * Copyright (C) 2010 Nokia Corporation. All rights reserved.6 *7 * Contact: Carlos Chinea <carlos.chinea@nokia.com>8 */9#include <linux/hsi/hsi.h>10#include <linux/list.h>11#include <linux/slab.h>12#include "hsi_core.h"13 14/*15 * hsi_board_list is only used internally by the HSI framework.16 * No one else is allowed to make use of it.17 */18LIST_HEAD(hsi_board_list);19EXPORT_SYMBOL_GPL(hsi_board_list);20 21/**22 * hsi_register_board_info - Register HSI clients information23 * @info: Array of HSI clients on the board24 * @len: Length of the array25 *26 * HSI clients are statically declared and registered on board files.27 *28 * HSI clients will be automatically registered to the HSI bus once the29 * controller and the port where the clients wishes to attach are registered30 * to it.31 *32 * Return -errno on failure, 0 on success.33 */34int __init hsi_register_board_info(struct hsi_board_info const *info,35 unsigned int len)36{37 struct hsi_cl_info *cl_info;38 39 cl_info = kcalloc(len, sizeof(*cl_info), GFP_KERNEL);40 if (!cl_info)41 return -ENOMEM;42 43 for (; len; len--, info++, cl_info++) {44 cl_info->info = *info;45 list_add_tail(&cl_info->list, &hsi_board_list);46 }47 48 return 0;49}50