| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * rational fractions |
| * |
| * Copyright (C) 2009 emlix GmbH, Oskar Schirmer <oskar@scara.com> |
| * |
| * helper functions when coping with rational numbers, |
| * e.g. when calculating optimum numerator/denominator pairs for |
| * pll configuration taking into account restricted register size |
| */ |
| |
| #ifndef _LINUX_RATIONAL_H |
| #define _LINUX_RATIONAL_H |
| |
| void rational_best_approximation( |
| unsigned long given_numerator, unsigned long given_denominator, |
| unsigned long max_numerator, unsigned long max_denominator, |
| unsigned long *best_numerator, unsigned long *best_denominator); |
| |
| #endif /* _LINUX_RATIONAL_H */ |
