diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-08-12 20:00:22 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2021-08-12 12:41:47 -0700 |
| commit | 4e7cf74fa3b28fcb43531ca6bc350bf8636e3de6 (patch) | |
| tree | f165057d930f49553cf58e923505a861701a5185 /drivers/clk/clk-fractional-divider.h | |
| parent | e73f0f0ee7541171d89f2e2491130c7771ba58d3 (diff) | |
clk: fractional-divider: Export approximation algorithm to the CCF users
At least one user currently duplicates some functions that are provided
by fractional divider module. Let's export approximation algorithm and
replace the open-coded variant.
As a bonus the exported function will get better documentation in place.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20210812170025.67074-1-andriy.shevchenko@linux.intel.com
[sboyd@kernel.org: Add header guard because why not]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/clk-fractional-divider.h')
| -rw-r--r-- | drivers/clk/clk-fractional-divider.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/clk/clk-fractional-divider.h b/drivers/clk/clk-fractional-divider.h new file mode 100644 index 000000000000..a05649eceb17 --- /dev/null +++ b/drivers/clk/clk-fractional-divider.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _CLK_FRACTIONAL_DIV_H +#define _CLK_FRACTIONAL_DIV_H + +struct clk_hw; + +void clk_fractional_divider_general_approximation(struct clk_hw *hw, + unsigned long rate, + unsigned long *parent_rate, + unsigned long *m, + unsigned long *n); + +#endif |