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 */
61

source code of linux/drivers/clk/mediatek/clk-gate.h