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_NK_H_ 15 #define _CCU_NK_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_nk - Definition of an N-K clock 25 * 26 * Clocks based on the formula parent * N * K 27 */ 28 struct ccu_nk { 29 u16 reg; 30 u32 enable; 31 u32 lock; 32 33 struct ccu_mult_internal n; 34 struct ccu_mult_internal k; 35 36 unsigned int fixed_post_div; 37 38 struct ccu_common common; 39 }; 40 41 #define SUNXI_CCU_NK_WITH_GATE_LOCK_POSTDIV(_struct, _name, _parent, _reg, \ 42 _nshift, _nwidth, \ 43 _kshift, _kwidth, \ 44 _gate, _lock, _postdiv, \ 45 _flags) \ 46 struct ccu_nk _struct = { \ 47 .enable = _gate, \ 48 .lock = _lock, \ 49 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \ 50 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ 51 .fixed_post_div = _postdiv, \ 52 .common = { \ 53 .reg = _reg, \ 54 .features = CCU_FEATURE_FIXED_POSTDIV, \ 55 .hw.init = CLK_HW_INIT(_name, \ 56 _parent, \ 57 &ccu_nk_ops, \ 58 _flags), \ 59 }, \ 60 } 61 62 static inline struct ccu_nk *hw_to_ccu_nk(struct clk_hw *hw) 63 { 64 struct ccu_common *common = hw_to_ccu_common(hw); 65 66 return container_of(common, struct ccu_nk, common); 67 } 68 69 extern const struct clk_ops ccu_nk_ops; 70 71 #endif /* _CCU_NK_H_ */ 72