clk-gate.h

 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;
22extern const struct clk_ops mtk_clk_gate_hwv_ops_setclr;
23extern const struct clk_ops mtk_clk_gate_hwv_ops_setclr_inv;
24
25struct mtk_gate_regs {
26	u32 sta_ofs;
27	u32 clr_ofs;
28	u32 set_ofs;
29};
30
31struct mtk_gate {
32	int id;
33	const char *name;
34	const char *parent_name;
35	const struct mtk_gate_regs *regs;
36	const struct mtk_gate_regs *hwv_regs;
37	int shift;
38	const struct clk_ops *ops;
39	unsigned long flags;
40};
41
42#define GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift,	\
43			_ops, _flags) {				\
44		.id = _id,					\
45		.name = _name,					\
46		.parent_name = _parent,				\
47		.regs = _regs,					\
48		.shift = _shift,				\
49		.ops = _ops,					\
50		.flags = _flags,				\
51	}
52
53#define GATE_MTK(_id, _name, _parent, _regs, _shift, _ops)		\
54	GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, _ops, 0)
55
56int mtk_clk_register_gates(struct device *dev, struct device_node *node,
57			   const struct mtk_gate *clks, int num,
58			   struct clk_hw_onecell_data *clk_data);
59
60void mtk_clk_unregister_gates(const struct mtk_gate *clks, int num,
61			      struct clk_hw_onecell_data *clk_data);
62
63#endif /* __DRV_CLK_GATE_H */