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 extern const struct clk_ops mtk_clk_gate_hwv_ops_setclr; 23 extern const struct clk_ops mtk_clk_gate_hwv_ops_setclr_inv; 24 25 struct mtk_gate_regs { 26 u32 sta_ofs; 27 u32 clr_ofs; 28 u32 set_ofs; 29 }; 30 31 struct 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 56 int 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 60 void 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 */ 64