1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Interconnect framework driver for i.MX SoC
 4 *
 5 * Copyright (c) 2019, BayLibre
 6 * Copyright (c) 2019-2020, NXP
 7 * Author: Alexandre Bailon <abailon@baylibre.com>
 8 * Author: Leonard Crestez <leonard.crestez@nxp.com>
 9 */
10#ifndef __DRIVERS_INTERCONNECT_IMX_H
11#define __DRIVERS_INTERCONNECT_IMX_H
12
13#include <linux/kernel.h>
14
15#define IMX_ICC_MAX_LINKS	4
16
17/*
18 * struct imx_icc_node_adj - Describe a dynamic adjustable node
19 */
20struct imx_icc_node_adj_desc {
21	unsigned int bw_mul, bw_div;
22	const char *phandle_name;
23	bool main_noc;
24};
25
26/*
27 * struct imx_icc_node - Describe an interconnect node
28 * @name: name of the node
29 * @id: an unique id to identify the node
30 * @links: an array of slaves' node id
31 * @num_links: number of id defined in links
32 */
33struct imx_icc_node_desc {
34	const char *name;
35	u16 id;
36	u16 links[IMX_ICC_MAX_LINKS];
37	u16 num_links;
38	const struct imx_icc_node_adj_desc *adj;
39};
40
41#define DEFINE_BUS_INTERCONNECT(_name, _id, _adj, ...)			\
42	{								\
43		.id = _id,						\
44		.name = _name,						\
45		.adj = _adj,						\
46		.num_links = ARRAY_SIZE(((int[]){ __VA_ARGS__ })),	\
47		.links = { __VA_ARGS__ },				\
48	}
49
50#define DEFINE_BUS_MASTER(_name, _id, _dest_id)				\
51	DEFINE_BUS_INTERCONNECT(_name, _id, NULL, _dest_id)
52
53#define DEFINE_BUS_SLAVE(_name, _id, _adj)				\
54	DEFINE_BUS_INTERCONNECT(_name, _id, _adj)
55
56int imx_icc_register(struct platform_device *pdev,
57		     struct imx_icc_node_desc *nodes,
58		     int nodes_count);
59int imx_icc_unregister(struct platform_device *pdev);
60
61#endif /* __DRIVERS_INTERCONNECT_IMX_H */