diff options
Diffstat (limited to 'drivers/clk/sunxi-ng/ccu_nm.c')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu_nm.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_nm.c b/drivers/clk/sunxi-ng/ccu_nm.c index c6d652289320..1dae4f3ed00d 100644 --- a/drivers/clk/sunxi-ng/ccu_nm.c +++ b/drivers/clk/sunxi-ng/ccu_nm.c @@ -15,8 +15,8 @@ #include "ccu_nm.h" struct _ccu_nm { - unsigned long n, max_n; - unsigned long m, max_m; + unsigned long n, min_n, max_n; + unsigned long m, min_m, max_m; }; static void ccu_nm_find_best(unsigned long parent, unsigned long rate, @@ -26,8 +26,8 @@ static void ccu_nm_find_best(unsigned long parent, unsigned long rate, unsigned long best_n = 0, best_m = 0; unsigned long _n, _m; - for (_n = 1; _n <= nm->max_n; _n++) { - for (_m = 1; _n <= nm->max_m; _m++) { + for (_n = nm->min_n; _n <= nm->max_n; _n++) { + for (_m = nm->min_m; _m <= nm->max_m; _m++) { unsigned long tmp_rate = parent * _n / _m; if (tmp_rate > rate) @@ -93,7 +93,9 @@ static long ccu_nm_round_rate(struct clk_hw *hw, unsigned long rate, struct ccu_nm *nm = hw_to_ccu_nm(hw); struct _ccu_nm _nm; + _nm.min_n = 1; _nm.max_n = 1 << nm->n.width; + _nm.min_m = 1; _nm.max_m = nm->m.max ?: 1 << nm->m.width; ccu_nm_find_best(*parent_rate, rate, &_nm); @@ -114,7 +116,9 @@ static int ccu_nm_set_rate(struct clk_hw *hw, unsigned long rate, else ccu_frac_helper_disable(&nm->common, &nm->frac); + _nm.min_n = 1; _nm.max_n = 1 << nm->n.width; + _nm.min_m = 1; _nm.max_m = nm->m.max ?: 1 << nm->m.width; ccu_nm_find_best(parent_rate, rate, &_nm); |