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regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel

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commit 81d0a6ae7b 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>
[bwh: Backported to 3.2: delay is done by driver, not returned to the caller]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
This commit is contained in:
Axel Lin
2013-01-09 19:34:57 +08:00
committed by Ben Hutchings
parent 5b7d898a19
commit e8d9897ff0
1 changed files with 1 additions and 1 deletions
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2
drivers/regulator/max8998.c
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@ -497,7 +497,7 @@ buck2_exit:
difference = desc->min + desc->step*i - previous_vol/1000;
if (difference > 0)
udelay(difference / ((val & 0x0f) + 1));
udelay(DIV_ROUND_UP(difference, (val & 0x0f) + 1));
return ret;
}