1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2016 Maxime Ripard. All rights reserved. 4 */ 5 6 #ifndef _CCU_NKM_H_ 7 #define _CCU_NKM_H_ 8 9 #include <linux/clk-provider.h> 10 11 #include "ccu_common.h" 12 #include "ccu_div.h" 13 #include "ccu_mult.h" 14 15 /* 16 * struct ccu_nkm - Definition of an N-K-M clock 17 * 18 * Clocks based on the formula parent * N * K / M 19 */ 20 struct ccu_nkm { 21 u32 enable; 22 u32 lock; 23 24 struct ccu_mult_internal n; 25 struct ccu_mult_internal k; 26 struct ccu_div_internal m; 27 struct ccu_mux_internal mux; 28 29 unsigned int fixed_post_div; 30 unsigned long max_m_n_ratio; 31 unsigned long min_parent_m_ratio; 32 33 struct ccu_common common; 34 }; 35 36 #define SUNXI_CCU_NKM_WITH_MUX_GATE_LOCK(_struct, _name, _parents, _reg, \ 37 _nshift, _nwidth, \ 38 _kshift, _kwidth, \ 39 _mshift, _mwidth, \ 40 _muxshift, _muxwidth, \ 41 _gate, _lock, _flags) \ 42 struct ccu_nkm _struct = { \ 43 .enable = _gate, \ 44 .lock = _lock, \ 45 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \ 46 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ 47 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \ 48 .mux = _SUNXI_CCU_MUX(_muxshift, _muxwidth), \ 49 .common = { \ 50 .reg = _reg, \ 51 .hw.init = CLK_HW_INIT_PARENTS(_name, \ 52 _parents, \ 53 &ccu_nkm_ops, \ 54 _flags), \ 55 }, \ 56 } 57 58 #define SUNXI_CCU_NKM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \ 59 _nshift, _nwidth, \ 60 _kshift, _kwidth, \ 61 _mshift, _mwidth, \ 62 _gate, _lock, _flags) \ 63 struct ccu_nkm _struct = { \ 64 .enable = _gate, \ 65 .lock = _lock, \ 66 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \ 67 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ 68 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \ 69 .common = { \ 70 .reg = _reg, \ 71 .hw.init = CLK_HW_INIT(_name, \ 72 _parent, \ 73 &ccu_nkm_ops, \ 74 _flags), \ 75 }, \ 76 } 77 78 static inline struct ccu_nkm *hw_to_ccu_nkm(struct clk_hw *hw) 79 { 80 struct ccu_common *common = hw_to_ccu_common(hw); 81 82 return container_of(common, struct ccu_nkm, common); 83 } 84 85 extern const struct clk_ops ccu_nkm_ops; 86 87 #endif /* _CCU_NKM_H_ */ 88