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_NKMP_H_ 15 #define _CCU_NKMP_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_nkmp - Definition of an N-K-M-P clock 25 * 26 * Clocks based on the formula parent * N * K >> P / M 27 */ 28 struct ccu_nkmp { 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_div_internal p; 36 37 unsigned int fixed_post_div; 38 unsigned int max_rate; 39 40 struct ccu_common common; 41 }; 42 43 #define SUNXI_CCU_NKMP_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \ 44 _nshift, _nwidth, \ 45 _kshift, _kwidth, \ 46 _mshift, _mwidth, \ 47 _pshift, _pwidth, \ 48 _gate, _lock, _flags) \ 49 struct ccu_nkmp _struct = { \ 50 .enable = _gate, \ 51 .lock = _lock, \ 52 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ 53 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \ 54 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \ 55 .p = _SUNXI_CCU_DIV(_pshift, _pwidth), \ 56 .common = { \ 57 .reg = _reg, \ 58 .hw.init = CLK_HW_INIT(_name, \ 59 _parent, \ 60 &ccu_nkmp_ops, \ 61 _flags), \ 62 }, \ 63 } 64 65 static inline struct ccu_nkmp *hw_to_ccu_nkmp(struct clk_hw *hw) 66 { 67 struct ccu_common *common = hw_to_ccu_common(hw); 68 69 return container_of(common, struct ccu_nkmp, common); 70 } 71 72 extern const struct clk_ops ccu_nkmp_ops; 73 74 #endif /* _CCU_NKMP_H_ */ 75