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1/* SPDX-License-Identifier: GPL-2.0+ */2//3// OWL divider clock driver4//5// Copyright (c) 2014 Actions Semi Inc.6// Author: David Liu <liuwei@actions-semi.com>7//8// Copyright (c) 2018 Linaro Ltd.9// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>10 11#ifndef _OWL_DIVIDER_H_12#define _OWL_DIVIDER_H_13 14#include "owl-common.h"15 16struct owl_divider_hw {17 u32 reg;18 u8 shift;19 u8 width;20 u8 div_flags;21 struct clk_div_table *table;22};23 24struct owl_divider {25 struct owl_divider_hw div_hw;26 struct owl_clk_common common;27};28 29#define OWL_DIVIDER_HW(_reg, _shift, _width, _div_flags, _table) \30 { \31 .reg = _reg, \32 .shift = _shift, \33 .width = _width, \34 .div_flags = _div_flags, \35 .table = _table, \36 }37 38#define OWL_DIVIDER(_struct, _name, _parent, _reg, \39 _shift, _width, _table, _div_flags, _flags) \40 struct owl_divider _struct = { \41 .div_hw = OWL_DIVIDER_HW(_reg, _shift, _width, \42 _div_flags, _table), \43 .common = { \44 .regmap = NULL, \45 .hw.init = CLK_HW_INIT(_name, \46 _parent, \47 &owl_divider_ops, \48 _flags), \49 }, \50 }51 52static inline struct owl_divider *hw_to_owl_divider(const struct clk_hw *hw)53{54 struct owl_clk_common *common = hw_to_owl_clk_common(hw);55 56 return container_of(common, struct owl_divider, common);57}58 59long owl_divider_helper_round_rate(struct owl_clk_common *common,60 const struct owl_divider_hw *div_hw,61 unsigned long rate,62 unsigned long *parent_rate);63 64unsigned long owl_divider_helper_recalc_rate(struct owl_clk_common *common,65 const struct owl_divider_hw *div_hw,66 unsigned long parent_rate);67 68int owl_divider_helper_set_rate(const struct owl_clk_common *common,69 const struct owl_divider_hw *div_hw,70 unsigned long rate,71 unsigned long parent_rate);72 73extern const struct clk_ops owl_divider_ops;74 75#endif /* _OWL_DIVIDER_H_ */76