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| author | Axel Lin <axel.lin@ingics.com> | 2013-01-09 19:34:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 08:46:39 -0800 |
| commit | 0e3f380e4da94e19a2e32fa00a144bed52aa561a (patch) | |
| tree | f7ec76a466e1341411f97ab9ef930204885313cd | |
| parent | d7fe0a4e2263fa4c01be523b983b5781edb19ae3 (diff) | |
| download | lwn-0e3f380e4da94e19a2e32fa00a144bed52aa561a.tar.gz lwn-0e3f380e4da94e19a2e32fa00a144bed52aa561a.zip | |
regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel
commit 81d0a6ae7befb24c06f4aa4856af7f8d1f612171 upstream.
Use DIV_ROUND_UP to prevent truncation by integer division issue.
This ensures we return enough delay time.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/regulator/max8998.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index 9f980c321b87..6a200196c3a8 100644 --- a/drivers/regulator/max8998.c +++ b/drivers/regulator/max8998.c @@ -447,7 +447,7 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev, difference = (new_selector - old_selector) * desc->step / 1000; if (difference > 0) - return difference / ((val & 0x0f) + 1); + return DIV_ROUND_UP(difference, (val & 0x0f) + 1); return 0; } |