mirror of https://gitee.com/openkylin/linux.git
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* HSI clients registration interface
|
|
*
|
|
* Copyright (C) 2010 Nokia Corporation. All rights reserved.
|
|
*
|
|
* Contact: Carlos Chinea <carlos.chinea@nokia.com>
|
|
*/
|
|
#include <linux/hsi/hsi.h>
|
|
#include <linux/list.h>
|
|
#include <linux/slab.h>
|
|
#include "hsi_core.h"
|
|
|
|
/*
|
|
* hsi_board_list is only used internally by the HSI framework.
|
|
* No one else is allowed to make use of it.
|
|
*/
|
|
LIST_HEAD(hsi_board_list);
|
|
EXPORT_SYMBOL_GPL(hsi_board_list);
|
|
|
|
/**
|
|
* hsi_register_board_info - Register HSI clients information
|
|
* @info: Array of HSI clients on the board
|
|
* @len: Length of the array
|
|
*
|
|
* HSI clients are statically declared and registered on board files.
|
|
*
|
|
* HSI clients will be automatically registered to the HSI bus once the
|
|
* controller and the port where the clients wishes to attach are registered
|
|
* to it.
|
|
*
|
|
* Return -errno on failure, 0 on success.
|
|
*/
|
|
int __init hsi_register_board_info(struct hsi_board_info const *info,
|
|
unsigned int len)
|
|
{
|
|
struct hsi_cl_info *cl_info;
|
|
|
|
cl_info = kcalloc(len, sizeof(*cl_info), GFP_KERNEL);
|
|
if (!cl_info)
|
|
return -ENOMEM;
|
|
|
|
for (; len; len--, info++, cl_info++) {
|
|
cl_info->info = *info;
|
|
list_add_tail(&cl_info->list, &hsi_board_list);
|
|
}
|
|
|
|
return 0;
|
|
}
|