/* SPDX-License-Identifier: GPL-2.0 */ // // Spreadtrum multiplexer clock driver // // Copyright (C) 2017 Spreadtrum, Inc. // Author: Chunyan Zhang <chunyan.zhang@spreadtrum.com> #ifndef _SPRD_MUX_H_ #define _SPRD_MUX_H_ #include "common.h" /** * struct sprd_mux_ssel - Mux clock's source select bits in its register * @shift: Bit offset of the divider in its register * @width: Width of the divider field in its register * @table: For some mux clocks, not all sources are used on some special * chips, this matches the value of mux clock's register and the * sources which are used for this mux clock */ struct sprd_mux_ssel { u8 shift; u8 width; const u8 *table; }; struct sprd_mux { struct sprd_mux_ssel mux; struct sprd_clk_common common; }; #define _SPRD_MUX_CLK(_shift, _width, _table) \ { \ .shift = _shift, \ .width = _width, \ .table = _table, \ } #define SPRD_MUX_CLK_TABLE(_struct, _name, _parents, _table, \ _reg, _shift, _width, \ _flags) \ struct sprd_mux _struct = { \ .mux = _SPRD_MUX_CLK(_shift, _width, _table), \ .common = { \ .regmap = NULL, \ .reg = _reg, \ .hw.init = CLK_HW_INIT_PARENTS(_name, \ _parents, \ &sprd_mux_ops, \ _flags), \ } \ } #define SPRD_MUX_CLK(_struct, _name, _parents, _reg, \ _shift, _width, _flags) \ SPRD_MUX_CLK_TABLE(_struct, _name, _parents, NULL, \ _reg, _shift, _width, _flags) static inline struct sprd_mux *hw_to_sprd_mux(const struct clk_hw *hw) { struct sprd_clk_common *common = hw_to_sprd_clk_common(hw); return container_of(common, struct sprd_mux, common); } extern const struct clk_ops sprd_mux_ops; u8 sprd_mux_helper_get_parent(const struct sprd_clk_common *common, const struct sprd_mux_ssel *mux); int sprd_mux_helper_set_parent(const struct sprd_clk_common *common, const struct sprd_mux_ssel *mux, u8 index); #endif /* _SPRD_MUX_H_ */