1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright 2018 Emmanuel Vadot <manu@FreeBSD.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#ifndef _RK_CLK_COMPOSITE_H_
29#define _RK_CLK_COMPOSITE_H_
30
31#include <dev/clk/clk.h>
32
33struct rk_clk_composite_def {
34	struct clknode_init_def	clkdef;
35
36	uint32_t	muxdiv_offset;
37
38	uint32_t	mux_shift;
39	uint32_t	mux_width;
40
41	uint32_t	div_shift;
42	uint32_t	div_width;
43
44	uint32_t	flags;
45};
46
47#define	RK_CLK_COMPOSITE_HAVE_MUX	0x0001
48#define	RK_CLK_COMPOSITE_DIV_EXP	0x0002	/* Register   0, 1, 2, 2, ... */
49						/* Divider    1, 2, 4, 8, ... */
50#define	RK_CLK_COMPOSITE_GRF		0x0004 /* Use syscon registers instead of CRU's */
51int rk_clk_composite_register(struct clkdom *clkdom,
52    struct rk_clk_composite_def *clkdef);
53
54#endif /* _RK_CLK_COMPOSITE_H_ */
55