xref: /src/sys/dev/fdt/fdt_opp.h

/*	$NetBSD: fdt_opp.h,v 1.1 2025/09/06 21:24:05 thorpej Exp $	*/

/*-
 * Copyright (c) 2015 Jared D. McNeill <jmcneill (at) invisible.ca>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _DEV_FDT_FDT_OPP_H_
#define _DEV_FDT_FDT_OPP_H_

struct fdt_opp_info {
	const char *	opp_compat;
	bool		(*opp_supported)(const int, const int);
};

#define	_FDT_OPP_REGISTER(name)		\
	__link_set_add_rodata(fdt_opps, __CONCAT(name,_oppinfo));

#define	FDT_OPP(_name, _compat, _suppfn)				\
static const struct fdt_opp_info __CONCAT(_name,_oppinfo) = {		\
	.opp_compat = (_compat),					\
	.opp_supported = (_suppfn)					\
};									\
_FDT_OPP_REGISTER(_name)

#endif /* _DEV_FDT_FDT_OPP_H_ */