Messages in this thread Patch in this message | | | Subject | [PATCH] mfd: sm501: Use DIV_ROUND_CLOSEST | From | Axel Lin <> | Date | Mon, 12 Mar 2012 10:12:34 +0800 |
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Use DIV_ROUND_CLOSEST to replace sm501fb_round_div function.
Signed-off-by: Axel Lin <axel.lin@gmail.com> --- drivers/mfd/sm501.c | 10 +--------- 1 files changed, 1 insertions(+), 9 deletions(-)
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index f4d8611..d927dd4 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -387,14 +387,6 @@ int sm501_unit_power(struct device *dev, unsigned int unit, unsigned int to) EXPORT_SYMBOL_GPL(sm501_unit_power); - -/* Perform a rounded division. */ -static long sm501fb_round_div(long num, long denom) -{ - /* n / d + 1 / 2 = (2n + d) / 2d */ - return (2 * num + denom) / (2 * denom); -} - /* clock value structure. */ struct sm501_clock { unsigned long mclk; @@ -428,7 +420,7 @@ static int sm501_calc_clock(unsigned long freq, /* try all 8 shift values.*/ for (shift = 0; shift < 8; shift++) { /* Calculate difference to requested clock */ - diff = sm501fb_round_div(mclk, divider << shift) - freq; + diff = DIV_ROUND_CLOSEST(mclk, divider << shift) - freq; if (diff < 0) diff = -diff; -- 1.7.5.4
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