Commit 5d26c15d authored by Chao Xie's avatar Chao Xie Committed by Mike Turquette

clk: mmp: try to use closer one when do round rate

The orignal code will use the bigger rate between
"previous rate" and "current rate" when caculate the
rate.
In fact, hardware cares about the closest one.
So choose the closer rate between "previous rate" and
"current rate".
Signed-off-by: 's avatarChao Xie <chao.xie@marvell.com>
Signed-off-by: 's avatarMike Turquette <mturquette@linaro.org>
parent c45693a6
......@@ -45,10 +45,14 @@ static long clk_factor_round_rate(struct clk_hw *hw, unsigned long drate,
if (rate > drate)
break;
}
if ((i == 0) || (i == factor->ftbl_cnt))
if ((i == 0) || (i == factor->ftbl_cnt)) {
return rate;
else
return prev_rate;
} else {
if ((drate - prev_rate) > (rate - drate))
return rate;
else
return prev_rate;
}
}
static unsigned long clk_factor_recalc_rate(struct clk_hw *hw,
......
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