1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (c) 2014 MediaTek Inc.
 4 * Author: James Liao <jamesjj.liao@mediatek.com>
 5 */
 6
 7#ifndef __DRV_CLK_GATE_H
 8#define __DRV_CLK_GATE_H
 9
10#include <linux/types.h>
11
12struct clk;
13struct clk_hw_onecell_data;
14struct clk_ops;
15struct device;
16struct device_node;
17
18extern const struct clk_ops mtk_clk_gate_ops_setclr;
19extern const struct clk_ops mtk_clk_gate_ops_setclr_inv;
20extern const struct clk_ops mtk_clk_gate_ops_no_setclr;
21extern const struct clk_ops mtk_clk_gate_ops_no_setclr_inv;
22
23struct mtk_gate_regs {
24	u32 sta_ofs;
25	u32 clr_ofs;
26	u32 set_ofs;
27};
28
29struct mtk_gate {
30	int id;
31	const char *name;
32	const char *parent_name;
33	const struct mtk_gate_regs *regs;
34	int shift;
35	const struct clk_ops *ops;
36	unsigned long flags;
37};
38
39#define GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift,	\
40			_ops, _flags) {				\
41		.id = _id,					\
42		.name = _name,					\
43		.parent_name = _parent,				\
44		.regs = _regs,					\
45		.shift = _shift,				\
46		.ops = _ops,					\
47		.flags = _flags,				\
48	}
49
50#define GATE_MTK(_id, _name, _parent, _regs, _shift, _ops)		\
51	GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, _ops, 0)
52
53int mtk_clk_register_gates(struct device *dev, struct device_node *node,
54			   const struct mtk_gate *clks, int num,
55			   struct clk_hw_onecell_data *clk_data);
56
57void mtk_clk_unregister_gates(const struct mtk_gate *clks, int num,
58			      struct clk_hw_onecell_data *clk_data);
59
60#endif /* __DRV_CLK_GATE_H */