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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/dev/clk/rockchip/rk_clk_composite.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright 2018 Emmanuel Vadot <[email protected]>

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 */

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#ifndef _RK_CLK_COMPOSITE_H_

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#define _RK_CLK_COMPOSITE_H_

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#include <dev/clk/clk.h>

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struct rk_clk_composite_def {

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	struct clknode_init_def	clkdef;

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	uint32_t	muxdiv_offset;

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	uint32_t	mux_shift;

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	uint32_t	mux_width;

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	uint32_t	div_shift;

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	uint32_t	div_width;

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	uint32_t	flags;

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};

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#define	RK_CLK_COMPOSITE_HAVE_MUX	0x0001

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#define	RK_CLK_COMPOSITE_DIV_EXP	0x0002	/* Register   0, 1, 2, 2, ... */

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						/* Divider    1, 2, 4, 8, ... */

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#define	RK_CLK_COMPOSITE_GRF		0x0004 /* Use syscon registers instead of CRU's */

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int rk_clk_composite_register(struct clkdom *clkdom,

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    struct rk_clk_composite_def *clkdef);

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#endif /* _RK_CLK_COMPOSITE_H_ */

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