mfd: Use DIV_ROUND_CLOSEST for sm501 clock

Use DIV_ROUND_CLOSEST to replace sm501fb_round_div function.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 1 insertions, 9 deletions

diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index f4d86117f44a..d927dd49acb3 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;