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>
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 @@
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 @@
/* 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;