forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
1.9 KiB
75 lines
1.9 KiB
/* SPDX-License-Identifier: GPL-2.0+ */ |
|
// |
|
// OWL divider clock driver |
|
// |
|
// Copyright (c) 2014 Actions Semi Inc. |
|
// Author: David Liu <[email protected]> |
|
// |
|
// Copyright (c) 2018 Linaro Ltd. |
|
// Author: Manivannan Sadhasivam <[email protected]> |
|
|
|
#ifndef _OWL_DIVIDER_H_ |
|
#define _OWL_DIVIDER_H_ |
|
|
|
#include "owl-common.h" |
|
|
|
struct owl_divider_hw { |
|
u32 reg; |
|
u8 shift; |
|
u8 width; |
|
u8 div_flags; |
|
struct clk_div_table *table; |
|
}; |
|
|
|
struct owl_divider { |
|
struct owl_divider_hw div_hw; |
|
struct owl_clk_common common; |
|
}; |
|
|
|
#define OWL_DIVIDER_HW(_reg, _shift, _width, _div_flags, _table) \ |
|
{ \ |
|
.reg = _reg, \ |
|
.shift = _shift, \ |
|
.width = _width, \ |
|
.div_flags = _div_flags, \ |
|
.table = _table, \ |
|
} |
|
|
|
#define OWL_DIVIDER(_struct, _name, _parent, _reg, \ |
|
_shift, _width, _table, _div_flags, _flags) \ |
|
struct owl_divider _struct = { \ |
|
.div_hw = OWL_DIVIDER_HW(_reg, _shift, _width, \ |
|
_div_flags, _table), \ |
|
.common = { \ |
|
.regmap = NULL, \ |
|
.hw.init = CLK_HW_INIT(_name, \ |
|
_parent, \ |
|
&owl_divider_ops, \ |
|
_flags), \ |
|
}, \ |
|
} |
|
|
|
static inline struct owl_divider *hw_to_owl_divider(const struct clk_hw *hw) |
|
{ |
|
struct owl_clk_common *common = hw_to_owl_clk_common(hw); |
|
|
|
return container_of(common, struct owl_divider, common); |
|
} |
|
|
|
long owl_divider_helper_round_rate(struct owl_clk_common *common, |
|
const struct owl_divider_hw *div_hw, |
|
unsigned long rate, |
|
unsigned long *parent_rate); |
|
|
|
unsigned long owl_divider_helper_recalc_rate(struct owl_clk_common *common, |
|
const struct owl_divider_hw *div_hw, |
|
unsigned long parent_rate); |
|
|
|
int owl_divider_helper_set_rate(const struct owl_clk_common *common, |
|
const struct owl_divider_hw *div_hw, |
|
unsigned long rate, |
|
unsigned long parent_rate); |
|
|
|
extern const struct clk_ops owl_divider_ops; |
|
|
|
#endif /* _OWL_DIVIDER_H_ */
|
|
|