1 /* 2 * Copyright (c) 2014 MediaTek Inc. 3 * Author: James Liao <jamesjj.liao@mediatek.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 */ 14 15 #ifndef __DRV_CLK_GATE_H 16 #define __DRV_CLK_GATE_H 17 18 #include <linux/regmap.h> 19 #include <linux/clk-provider.h> 20 21 struct clk; 22 23 struct mtk_clk_gate { 24 struct clk_hw hw; 25 struct regmap *regmap; 26 int set_ofs; 27 int clr_ofs; 28 int sta_ofs; 29 u8 bit; 30 }; 31 32 static inline struct mtk_clk_gate *to_mtk_clk_gate(struct clk_hw *hw) 33 { 34 return container_of(hw, struct mtk_clk_gate, hw); 35 } 36 37 extern const struct clk_ops mtk_clk_gate_ops_setclr; 38 extern const struct clk_ops mtk_clk_gate_ops_setclr_inv; 39 extern const struct clk_ops mtk_clk_gate_ops_no_setclr; 40 extern const struct clk_ops mtk_clk_gate_ops_no_setclr_inv; 41 42 struct clk *mtk_clk_register_gate( 43 const char *name, 44 const char *parent_name, 45 struct regmap *regmap, 46 int set_ofs, 47 int clr_ofs, 48 int sta_ofs, 49 u8 bit, 50 const struct clk_ops *ops, 51 unsigned long flags); 52 53 #define GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, \ 54 _ops, _flags) { \ 55 .id = _id, \ 56 .name = _name, \ 57 .parent_name = _parent, \ 58 .regs = _regs, \ 59 .shift = _shift, \ 60 .ops = _ops, \ 61 .flags = _flags, \ 62 } 63 64 #define GATE_MTK(_id, _name, _parent, _regs, _shift, _ops) \ 65 GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, _ops, 0) 66 67 #endif /* __DRV_CLK_GATE_H */ 68