diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/clk-provider.h | 3 | ||||
| -rw-r--r-- | include/linux/rational.h | 20 |
2 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 6fda14f5fe6..9d296f240a4 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -247,6 +247,9 @@ struct clk *clk_register_mux(struct device *dev, const char *name, void __iomem *reg, u8 shift, u8 width, u8 clk_mux_flags); +struct clk *clk_register_fixed_rate(struct device *dev, const char *name, + ulong rate); + const char *clk_hw_get_name(const struct clk *hw); ulong clk_generic_get_rate(struct clk *clk); diff --git a/include/linux/rational.h b/include/linux/rational.h new file mode 100644 index 00000000000..33f5f5fc3e3 --- /dev/null +++ b/include/linux/rational.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * rational fractions + * + * Copyright (C) 2009 emlix GmbH, Oskar Schirmer <[email protected]> + * + * 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 */ |