1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * rational fractions
4 *
5 * Copyright (C) 2009 emlix GmbH, Oskar Schirmer <oskar@scara.com>
6 *
7 * helper functions when coping with rational numbers,
8 * e.g. when calculating optimum numerator/denominator pairs for
9 * pll configuration taking into account restricted register size
10 */
11
12#ifndef _LINUX_RATIONAL_H
13#define _LINUX_RATIONAL_H
14
15void rational_best_approximation(
16 unsigned long given_numerator, unsigned long given_denominator,
17 unsigned long max_numerator, unsigned long max_denominator,
18 unsigned long *best_numerator, unsigned long *best_denominator);
19
20#endif /* _LINUX_RATIONAL_H */
21