clk/sunxi-ng/ccu_nk.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * Copyright (c) 2016 Maxime Ripard. All rights reserved.
0004  */
0005
0006 #ifndef _CCU_NK_H_
0007 #define _CCU_NK_H_
0008
0009 #include <linux/clk-provider.h>
0010
0011 #include "ccu_common.h"
0012 #include "ccu_div.h"
0013 #include "ccu_mult.h"
0014
0015 /*
0016  * struct ccu_nk - Definition of an N-K clock
0017  *
0018  * Clocks based on the formula parent * N * K
0019  */
0020 struct ccu_nk {
0021     u16         reg;
0022     u32         enable;
0023     u32         lock;
0024
0025     struct ccu_mult_internal    n;
0026     struct ccu_mult_internal    k;
0027
0028     unsigned int        fixed_post_div;
0029
0030     struct ccu_common   common;
0031 };
0032
0033 #define SUNXI_CCU_NK_WITH_GATE_LOCK_POSTDIV(_struct, _name, _parent, _reg, \
0034                         _nshift, _nwidth,       \
0035                         _kshift, _kwidth,       \
0036                         _gate, _lock, _postdiv, \
0037                         _flags)         \
0038     struct ccu_nk _struct = {                   \
0039         .enable     = _gate,                \
0040         .lock       = _lock,                \
0041         .k      = _SUNXI_CCU_MULT(_kshift, _kwidth),    \
0042         .n      = _SUNXI_CCU_MULT(_nshift, _nwidth),    \
0043         .fixed_post_div = _postdiv,             \
0044         .common     = {                 \
0045             .reg        = _reg,             \
0046             .features   = CCU_FEATURE_FIXED_POSTDIV,    \
0047             .hw.init    = CLK_HW_INIT(_name,        \
0048                               _parent,      \
0049                               &ccu_nk_ops,  \
0050                               _flags),      \
0051         },                          \
0052     }
0053
0054 static inline struct ccu_nk *hw_to_ccu_nk(struct clk_hw *hw)
0055 {
0056     struct ccu_common *common = hw_to_ccu_common(hw);
0057
0058     return container_of(common, struct ccu_nk, common);
0059 }
0060
0061 extern const struct clk_ops ccu_nk_ops;
0062
0063 #endif /* _CCU_NK_H_ */