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Date: Wed, 09 Jan 2013 19:34:57 +0800 From: Axel Lin <axel.lin@...ics.com> To: Mark Brown <broonie@...nsource.wolfsonmicro.com> Cc: Thomas Abraham <thomas.abraham@...aro.org>, Kyungmin Park <kyungmin.park@...sung.com>, MyungJoo Ham <myungjoo.ham@...sung.com>, Liam Girdwood <lrg@...com>, linux-kernel@...r.kernel.org Subject: [PATCH v2] regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel 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@...ics.com> --- v2: Only fix integer division truncation issue, remove other optimization. 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 06be8cc..1f0df40 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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