1/* SPDX-License-Identifier: GPL-2.0+ */
2//
3// OWL mux clock driver
4//
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_MUX_H_
12#define _OWL_MUX_H_
13
14#include "owl-common.h"
15
16struct owl_mux_hw {
17	u32			reg;
18	u8			shift;
19	u8			width;
20};
21
22struct owl_mux {
23	struct owl_mux_hw	mux_hw;
24	struct owl_clk_common	common;
25};
26
27#define OWL_MUX_HW(_reg, _shift, _width)		\
28	{						\
29		.reg	= _reg,				\
30		.shift	= _shift,			\
31		.width	= _width,			\
32	}
33
34#define OWL_MUX(_struct, _name, _parents, _reg,				\
35		_shift, _width, _flags)					\
36	struct owl_mux _struct = {					\
37		.mux_hw	= OWL_MUX_HW(_reg, _shift, _width),		\
38		.common = {						\
39			.regmap = NULL,					\
40			.hw.init = CLK_HW_INIT_PARENTS(_name,		\
41						       _parents,	\
42						       &owl_mux_ops,	\
43						       _flags),		\
44		},							\
45	}
46
47static inline struct owl_mux *hw_to_owl_mux(const struct clk_hw *hw)
48{
49	struct owl_clk_common *common = hw_to_owl_clk_common(hw);
50
51	return container_of(common, struct owl_mux, common);
52}
53
54u8 owl_mux_helper_get_parent(const struct owl_clk_common *common,
55			     const struct owl_mux_hw *mux_hw);
56int owl_mux_helper_set_parent(const struct owl_clk_common *common,
57			      struct owl_mux_hw *mux_hw, u8 index);
58
59extern const struct clk_ops owl_mux_ops;
60
61#endif /* _OWL_MUX_H_ */
62