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 12 struct clk; 13 struct clk_hw_onecell_data; 14 struct clk_ops; 15 struct device; 16 struct device_node; 17 18 extern const struct clk_ops mtk_clk_gate_ops_setclr; 19 extern const struct clk_ops mtk_clk_gate_ops_setclr_inv; 20 extern const struct clk_ops mtk_clk_gate_ops_no_setclr; 21 extern const struct clk_ops mtk_clk_gate_ops_no_setclr_inv; 22 23 struct mtk_gate_regs { 24 u32 sta_ofs; 25 u32 clr_ofs; 26 u32 set_ofs; 27 }; 28 29 struct 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 53 int mtk_clk_register_gates(struct device_node *node, 54 const struct mtk_gate *clks, int num, 55 struct clk_hw_onecell_data *clk_data); 56 57 int mtk_clk_register_gates_with_dev(struct device_node *node, 58 const struct mtk_gate *clks, int num, 59 struct clk_hw_onecell_data *clk_data, 60 struct device *dev); 61 62 void mtk_clk_unregister_gates(const struct mtk_gate *clks, int num, 63 struct clk_hw_onecell_data *clk_data); 64 65 #endif /* __DRV_CLK_GATE_H */ 66