| From | Herton Ronaldo Krzesinski <> | Subject | [PATCH 39/74] regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel | Date | Thu, 24 Jan 2013 01:26:51 -0200 |
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3.5.7.4 -stable review patch. If anyone has any objections, please let me know.
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From: Axel Lin <axel.lin@ingics.com>
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: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> --- drivers/regulator/max8998.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index 5e56df0..b3b2984 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; } -- 1.7.9.5
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