regulator: Ensure enough enable time for max8649
Integer division may truncate the result, thus max8649_enable_time() may return
slightly shorter enable time. This patch fixes it.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c
index 30eb9e5..1062cf9 100644
--- a/drivers/regulator/max8649.c
+++ b/drivers/regulator/max8649.c
@@ -221,7 +221,7 @@
ret = (ret & MAX8649_RAMP_MASK) >> 5;
rate = (32 * 1000) >> ret; /* uV/uS */
- return (voltage / rate);
+ return DIV_ROUND_UP(voltage, rate);
}
static int max8649_set_mode(struct regulator_dev *rdev, unsigned int mode)