diff options
Diffstat (limited to 'drivers/clk/starfive')
| -rw-r--r-- | drivers/clk/starfive/clk-starfive-jh7100.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/clk/starfive/clk-starfive-jh7100.c b/drivers/clk/starfive/clk-starfive-jh7100.c index 25d31afa0f87..db6a4dc203af 100644 --- a/drivers/clk/starfive/clk-starfive-jh7100.c +++ b/drivers/clk/starfive/clk-starfive-jh7100.c @@ -399,22 +399,13 @@ static unsigned long jh7100_clk_recalc_rate(struct clk_hw *hw, return div ? parent_rate / div : 0; } -static unsigned long jh7100_clk_bestdiv(struct jh7100_clk *clk, - unsigned long rate, unsigned long parent) -{ - unsigned long max = clk->max_div; - unsigned long div = DIV_ROUND_UP(parent, rate); - - return min(div, max); -} - static int jh7100_clk_determine_rate(struct clk_hw *hw, struct clk_rate_request *req) { struct jh7100_clk *clk = jh7100_clk_from(hw); unsigned long parent = req->best_parent_rate; unsigned long rate = clamp(req->rate, req->min_rate, req->max_rate); - unsigned long div = jh7100_clk_bestdiv(clk, rate, parent); + unsigned long div = min_t(unsigned long, DIV_ROUND_UP(parent, rate), clk->max_div); unsigned long result = parent / div; /* @@ -442,7 +433,8 @@ static int jh7100_clk_set_rate(struct clk_hw *hw, unsigned long parent_rate) { struct jh7100_clk *clk = jh7100_clk_from(hw); - unsigned long div = jh7100_clk_bestdiv(clk, rate, parent_rate); + unsigned long div = clamp(DIV_ROUND_CLOSEST(parent_rate, rate), + 1UL, (unsigned long)clk->max_div); jh7100_clk_reg_rmw(clk, JH7100_CLK_DIV_MASK, div); return 0; |