diff options
Diffstat (limited to 'drivers/clk/sunxi-ng/ccu_nkmp.c')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu_nkmp.c | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_nkmp.c b/drivers/clk/sunxi-ng/ccu_nkmp.c index 9769dee99511..fcf67572e55c 100644 --- a/drivers/clk/sunxi-ng/ccu_nkmp.c +++ b/drivers/clk/sunxi-ng/ccu_nkmp.c @@ -9,7 +9,6 @@ */ #include <linux/clk-provider.h> -#include <linux/rational.h> #include "ccu_gate.h" #include "ccu_nkmp.h" @@ -29,24 +28,24 @@ static void ccu_nkmp_find_best(unsigned long parent, unsigned long rate, unsigned long _n, _k, _m, _p; for (_k = 1; _k <= nkmp->max_k; _k++) { - for (_p = 1; _p <= nkmp->max_p; _p <<= 1) { - unsigned long tmp_rate; - - rational_best_approximation(rate / _k, parent / _p, - nkmp->max_n, nkmp->max_m, - &_n, &_m); - - tmp_rate = parent * _n * _k / (_m * _p); - - if (tmp_rate > rate) - continue; - - if ((rate - tmp_rate) < (rate - best_rate)) { - best_rate = tmp_rate; - best_n = _n; - best_k = _k; - best_m = _m; - best_p = _p; + for (_n = 1; _n <= nkmp->max_n; _n++) { + for (_m = 1; _n <= nkmp->max_m; _m++) { + for (_p = 1; _p <= nkmp->max_p; _p <<= 1) { + unsigned long tmp_rate; + + tmp_rate = parent * _n * _k / (_m * _p); + + if (tmp_rate > rate) + continue; + + if ((rate - tmp_rate) < (rate - best_rate)) { + best_rate = tmp_rate; + best_n = _n; + best_k = _k; + best_m = _m; + best_p = _p; + } + } } } } |