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_NKM_H_ 15 #define _CCU_NKM_H_ 16 17 #include <linux/clk-provider.h> 18 19 #include "ccu_common.h" 20 #include "ccu_div.h" 21 #include "ccu_mult.h" 22 23 /* 24 * struct ccu_nkm - Definition of an N-K-M clock 25 * 26 * Clocks based on the formula parent * N * K / M 27 */ 28 struct ccu_nkm { 29 u32 enable; 30 u32 lock; 31 32 struct ccu_mult_internal n; 33 struct ccu_mult_internal k; 34 struct ccu_div_internal m; 35 struct ccu_mux_internal mux; 36 37 unsigned int fixed_post_div; 38 39 struct ccu_common common; 40 }; 41 42 #define SUNXI_CCU_NKM_WITH_MUX_GATE_LOCK(_struct, _name, _parents, _reg, \ 43 _nshift, _nwidth, \ 44 _kshift, _kwidth, \ 45 _mshift, _mwidth, \ 46 _muxshift, _muxwidth, \ 47 _gate, _lock, _flags) \ 48 struct ccu_nkm _struct = { \ 49 .enable = _gate, \ 50 .lock = _lock, \ 51 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \ 52 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ 53 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \ 54 .mux = _SUNXI_CCU_MUX(_muxshift, _muxwidth), \ 55 .common = { \ 56 .reg = _reg, \ 57 .hw.init = CLK_HW_INIT_PARENTS(_name, \ 58 _parents, \ 59 &ccu_nkm_ops, \ 60 _flags), \ 61 }, \ 62 } 63 64 #define SUNXI_CCU_NKM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \ 65 _nshift, _nwidth, \ 66 _kshift, _kwidth, \ 67 _mshift, _mwidth, \ 68 _gate, _lock, _flags) \ 69 struct ccu_nkm _struct = { \ 70 .enable = _gate, \ 71 .lock = _lock, \ 72 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \ 73 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ 74 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \ 75 .common = { \ 76 .reg = _reg, \ 77 .hw.init = CLK_HW_INIT(_name, \ 78 _parent, \ 79 &ccu_nkm_ops, \ 80 _flags), \ 81 }, \ 82 } 83 84 static inline struct ccu_nkm *hw_to_ccu_nkm(struct clk_hw *hw) 85 { 86 struct ccu_common *common = hw_to_ccu_common(hw); 87 88 return container_of(common, struct ccu_nkm, common); 89 } 90 91 extern const struct clk_ops ccu_nkm_ops; 92 93 #endif /* _CCU_NKM_H_ */ 94