/* SPDX-License-Identifier: GPL-2.0+ */ // // OWL factor clock driver // // Copyright (c) 2014 Actions Semi Inc. // Author: David Liu <liuwei@actions-semi.com> // // Copyright (c) 2018 Linaro Ltd. // Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> #ifndef _OWL_FACTOR_H_ #define _OWL_FACTOR_H_ #include "owl-common.h" struct clk_factor_table { unsigned int val; unsigned int mul; unsigned int div; }; struct owl_factor_hw { u32 reg; u8 shift; u8 width; u8 fct_flags; struct clk_factor_table *table; }; struct owl_factor { struct owl_factor_hw factor_hw; struct owl_clk_common common; }; #define OWL_FACTOR_HW(_reg, _shift, _width, _fct_flags, _table) \ { \ .reg = _reg, \ .shift = _shift, \ .width = _width, \ .fct_flags = _fct_flags, \ .table = _table, \ } #define OWL_FACTOR(_struct, _name, _parent, _reg, \ _shift, _width, _table, _fct_flags, _flags) \ struct owl_factor _struct = { \ .factor_hw = OWL_FACTOR_HW(_reg, _shift, \ _width, _fct_flags, _table), \ .common = { \ .regmap = NULL, \ .hw.init = CLK_HW_INIT(_name, \ _parent, \ &owl_factor_ops, \ _flags), \ }, \ } #define div_mask(d) ((1 << ((d)->width)) - 1) static inline struct owl_factor *hw_to_owl_factor(const struct clk_hw *hw) { struct owl_clk_common *common = hw_to_owl_clk_common(hw); return container_of(common, struct owl_factor, common); } long owl_factor_helper_round_rate(struct owl_clk_common *common, const struct owl_factor_hw *factor_hw, unsigned long rate, unsigned long *parent_rate); unsigned long owl_factor_helper_recalc_rate(struct owl_clk_common *common, const struct owl_factor_hw *factor_hw, unsigned long parent_rate); int owl_factor_helper_set_rate(const struct owl_clk_common *common, const struct owl_factor_hw *factor_hw, unsigned long rate, unsigned long parent_rate); extern const struct clk_ops owl_factor_ops; #endif /* _OWL_FACTOR_H_ */