Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * HSI clients registration interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2010 Nokia Corporation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Contact: Carlos Chinea <carlos.chinea@nokia.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/hsi/hsi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "hsi_core.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * hsi_board_list is only used internally by the HSI framework.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * No one else is allowed to make use of it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) LIST_HEAD(hsi_board_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) EXPORT_SYMBOL_GPL(hsi_board_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * hsi_register_board_info - Register HSI clients information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  * @info: Array of HSI clients on the board
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  * @len: Length of the array
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)  * HSI clients are statically declared and registered on board files.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  * HSI clients will be automatically registered to the HSI bus once the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  * controller and the port where the clients wishes to attach are registered
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  * to it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)  * Return -errno on failure, 0 on success.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) int __init hsi_register_board_info(struct hsi_board_info const *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 							unsigned int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	struct hsi_cl_info *cl_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	cl_info = kcalloc(len, sizeof(*cl_info), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	if (!cl_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	for (; len; len--, info++, cl_info++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		cl_info->info = *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		list_add_tail(&cl_info->list, &hsi_board_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }