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| author | Axel Lin <axel.lin@ingics.com> | 2012-11-30 13:19:33 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-12-03 00:12:08 +0900 |
| commit | 1a679930e1750c342d7e5fac787dc47484daec2e (patch) | |
| tree | 829b667865d5a1a0999864d0ef8d2ccf8887059f /drivers/regulator/wm831x-dcdc.c | |
| parent | 9489e9dcae718d5fde988e4a684a0f55b5f94d17 (diff) | |
| download | linux-0-day-1a679930e1750c342d7e5fac787dc47484daec2e.tar.gz linux-0-day-1a679930e1750c342d7e5fac787dc47484daec2e.tar.xz | |
regulator: wm831x-dcdc: Ensure selected voltage falls within requested range
Use DIV_ROUND_UP to ensure selected voltage won't less than min_uV due to
integer truncation.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/wm831x-dcdc.c')
| -rw-r--r-- | drivers/regulator/wm831x-dcdc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 782c228a19bd5..411cb12385aa3 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -223,7 +223,7 @@ static int wm831x_buckv_map_voltage(struct regulator_dev *rdev, if (min_uV < 600000) vsel = 0; else if (min_uV <= 1800000) - vsel = ((min_uV - 600000) / 12500) + 8; + vsel = DIV_ROUND_UP(min_uV - 600000, 12500) + 8; else return -EINVAL; |