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Subject[PATCH] regulator: wm831x-dcdc: Ensure selected voltage falls within requested range
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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>
---
drivers/regulator/wm831x-dcdc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index bce2565..96450f1 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;

--
1.7.9.5




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