clk/sprd/composite.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 //
0003 // Spreadtrum composite clock driver
0004 //
0005 // Copyright (C) 2017 Spreadtrum, Inc.
0006 // Author: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
0007
0008 #ifndef _SPRD_COMPOSITE_H_
0009 #define _SPRD_COMPOSITE_H_
0010
0011 #include "common.h"
0012 #include "mux.h"
0013 #include "div.h"
0014
0015 struct sprd_comp {
0016     struct sprd_mux_ssel    mux;
0017     struct sprd_div_internal    div;
0018     struct sprd_clk_common  common;
0019 };
0020
0021 #define SPRD_COMP_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _table, \
0022                  _mshift, _mwidth, _dshift, _dwidth,    \
0023                  _flags, _fn)               \
0024     struct sprd_comp _struct = {                    \
0025         .mux    = _SPRD_MUX_CLK(_mshift, _mwidth, _table),  \
0026         .div    = _SPRD_DIV_CLK(_dshift, _dwidth),      \
0027         .common = {                     \
0028             .regmap     = NULL,             \
0029             .reg        = _reg,             \
0030             .hw.init = _fn(_name, _parent,          \
0031                        &sprd_comp_ops, _flags),     \
0032              }                      \
0033     }
0034
0035 #define SPRD_COMP_CLK_TABLE(_struct, _name, _parent, _reg, _table,  \
0036                 _mshift, _mwidth, _dshift, _dwidth, _flags) \
0037     SPRD_COMP_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _table, \
0038                  _mshift, _mwidth, _dshift, _dwidth,    \
0039                  _flags, CLK_HW_INIT_PARENTS)
0040
0041 #define SPRD_COMP_CLK(_struct, _name, _parent, _reg, _mshift,       \
0042               _mwidth, _dshift, _dwidth, _flags)        \
0043     SPRD_COMP_CLK_TABLE(_struct, _name, _parent, _reg, NULL,    \
0044                 _mshift, _mwidth, _dshift, _dwidth, _flags)
0045
0046 #define SPRD_COMP_CLK_DATA_TABLE(_struct, _name, _parent, _reg, _table, \
0047                  _mshift, _mwidth, _dshift,     \
0048                  _dwidth, _flags)           \
0049     SPRD_COMP_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _table, \
0050                  _mshift, _mwidth, _dshift, _dwidth,    \
0051                  _flags, CLK_HW_INIT_PARENTS_DATA)
0052
0053 #define SPRD_COMP_CLK_DATA(_struct, _name, _parent, _reg, _mshift,  \
0054                _mwidth, _dshift, _dwidth, _flags)       \
0055     SPRD_COMP_CLK_DATA_TABLE(_struct, _name, _parent, _reg, NULL,   \
0056                  _mshift, _mwidth, _dshift, _dwidth,    \
0057                  _flags)
0058
0059 static inline struct sprd_comp *hw_to_sprd_comp(const struct clk_hw *hw)
0060 {
0061     struct sprd_clk_common *common = hw_to_sprd_clk_common(hw);
0062
0063     return container_of(common, struct sprd_comp, common);
0064 }
0065
0066 extern const struct clk_ops sprd_comp_ops;
0067
0068 #endif /* _SPRD_COMPOSITE_H_ */