clk/sunxi-ng/ccu_mult.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _CCU_MULT_H_
0003 #define _CCU_MULT_H_
0004
0005 #include "ccu_common.h"
0006 #include "ccu_frac.h"
0007 #include "ccu_mux.h"
0008
0009 struct ccu_mult_internal {
0010     u8  offset;
0011     u8  shift;
0012     u8  width;
0013     u8  min;
0014     u8  max;
0015 };
0016
0017 #define _SUNXI_CCU_MULT_OFFSET_MIN_MAX(_shift, _width, _offset, _min, _max) \
0018     {                               \
0019         .min    = _min,                     \
0020         .max    = _max,                     \
0021         .offset = _offset,                  \
0022         .shift  = _shift,                   \
0023         .width  = _width,                   \
0024     }
0025
0026 #define _SUNXI_CCU_MULT_MIN(_shift, _width, _min)   \
0027     _SUNXI_CCU_MULT_OFFSET_MIN_MAX(_shift, _width, 1, _min, 0)
0028
0029 #define _SUNXI_CCU_MULT_OFFSET(_shift, _width, _offset) \
0030     _SUNXI_CCU_MULT_OFFSET_MIN_MAX(_shift, _width, _offset, 1, 0)
0031
0032 #define _SUNXI_CCU_MULT(_shift, _width)     \
0033     _SUNXI_CCU_MULT_OFFSET_MIN_MAX(_shift, _width, 1, 1, 0)
0034
0035 struct ccu_mult {
0036     u32         enable;
0037     u32         lock;
0038
0039     struct ccu_frac_internal    frac;
0040     struct ccu_mult_internal    mult;
0041     struct ccu_mux_internal mux;
0042     struct ccu_common   common;
0043 };
0044
0045 #define SUNXI_CCU_N_WITH_GATE_LOCK(_struct, _name, _parent, _reg,   \
0046                    _mshift, _mwidth, _gate, _lock,  \
0047                    _flags)              \
0048     struct ccu_mult _struct = {                 \
0049         .enable = _gate,                    \
0050         .lock   = _lock,                    \
0051         .mult   = _SUNXI_CCU_MULT(_mshift, _mwidth),        \
0052         .common = {                     \
0053             .reg        = _reg,             \
0054             .hw.init    = CLK_HW_INIT(_name,        \
0055                               _parent,      \
0056                               &ccu_mult_ops,    \
0057                               _flags),      \
0058         },                          \
0059     }
0060
0061 static inline struct ccu_mult *hw_to_ccu_mult(struct clk_hw *hw)
0062 {
0063     struct ccu_common *common = hw_to_ccu_common(hw);
0064
0065     return container_of(common, struct ccu_mult, common);
0066 }
0067
0068 extern const struct clk_ops ccu_mult_ops;
0069
0070 #endif /* _CCU_MULT_H_ */