1 /* 2 * Copyright (c) 2016 Maxime Ripard. All rights reserved. 3 * 4 * This software is licensed under the terms of the GNU General Public 5 * License version 2, as published by the Free Software Foundation, and 6 * may be copied, distributed, and modified under those terms. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 */ 13 14 #ifndef _CCU_NM_H_ 15 #define _CCU_NM_H_ 16 17 #include <linux/clk-provider.h> 18 19 #include "ccu_common.h" 20 #include "ccu_div.h" 21 #include "ccu_frac.h" 22 #include "ccu_mult.h" 23 24 /* 25 * struct ccu_nm - Definition of an N-M clock 26 * 27 * Clocks based on the formula parent * N / M 28 */ 29 struct ccu_nm { 30 u32 enable; 31 u32 lock; 32 33 struct ccu_mult_internal n; 34 struct ccu_div_internal m; 35 struct ccu_frac_internal frac; 36 37 struct ccu_common common; 38 }; 39 40 #define SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(_struct, _name, _parent, _reg, \ 41 _nshift, _nwidth, \ 42 _mshift, _mwidth, \ 43 _frac_en, _frac_sel, \ 44 _frac_rate_0, _frac_rate_1, \ 45 _gate, _lock, _flags) \ 46 struct ccu_nm _struct = { \ 47 .enable = _gate, \ 48 .lock = _lock, \ 49 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ 50 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \ 51 .frac = _SUNXI_CCU_FRAC(_frac_en, _frac_sel, \ 52 _frac_rate_0, \ 53 _frac_rate_1), \ 54 .common = { \ 55 .reg = _reg, \ 56 .features = CCU_FEATURE_FRACTIONAL, \ 57 .hw.init = CLK_HW_INIT(_name, \ 58 _parent, \ 59 &ccu_nm_ops, \ 60 _flags), \ 61 }, \ 62 } 63 64 #define SUNXI_CCU_NM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \ 65 _nshift, _nwidth, \ 66 _mshift, _mwidth, \ 67 _gate, _lock, _flags) \ 68 struct ccu_nm _struct = { \ 69 .enable = _gate, \ 70 .lock = _lock, \ 71 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ 72 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \ 73 .common = { \ 74 .reg = _reg, \ 75 .hw.init = CLK_HW_INIT(_name, \ 76 _parent, \ 77 &ccu_nm_ops, \ 78 _flags), \ 79 }, \ 80 } 81 82 static inline struct ccu_nm *hw_to_ccu_nm(struct clk_hw *hw) 83 { 84 struct ccu_common *common = hw_to_ccu_common(hw); 85 86 return container_of(common, struct ccu_nm, common); 87 } 88 89 extern const struct clk_ops ccu_nm_ops; 90 91 #endif /* _CCU_NM_H_ */ 92