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