From: Ludovic Desroches Date: Fri, 17 Nov 2017 06:50:21 +0000 (+0800) Subject: clk: at91: clk-generated: select absolute closest rate X-Git-Tag: v2018.01-rc1~43 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=eb1ed2b19befecdfeddb394e6174bb2198f2a49b;p=u-boot clk: at91: clk-generated: select absolute closest rate To get the same behavior as the Linux driver, instead of selecting the closest inferior rate, select the closest inferior or superior rate Signed-off-by: Ludovic Desroches Signed-off-by: Wenyou Yang --- diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-generated.c index 8c9a3cb053..461b5b2c9a 100644 --- a/drivers/clk/at91/clk-generated.c +++ b/drivers/clk/at91/clk-generated.c @@ -98,9 +98,7 @@ static ulong generic_clk_set_rate(struct clk *clk, ulong rate) for (div = 1; div < GENERATED_MAX_DIV + 2; div++) { tmp_rate = DIV_ROUND_CLOSEST(parent_rate, div); - if (rate < tmp_rate) - continue; - tmp_diff = rate - tmp_rate; + tmp_diff = abs(rate - tmp_rate); if (best_diff < 0 || best_diff > tmp_diff) { best_rate = tmp_rate;