* [PATCH] regulator: wm831x-dcdc: Ensure selected voltage falls within requested range
@ 2012-11-30 5:19 Axel Lin
2012-12-02 15:12 ` Mark Brown
0 siblings, 1 reply; 2+ messages in thread
From: Axel Lin @ 2012-11-30 5:19 UTC (permalink / raw)
To: Mark Brown; +Cc: Liam Girdwood, linux-kernel
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
^ permalink raw reply related [flat|nested] 2+ messages in thread
end of thread, other threads:[~2012-12-02 15:12 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-11-30 5:19 [PATCH] regulator: wm831x-dcdc: Ensure selected voltage falls within requested range Axel Lin
2012-12-02 15:12 ` Mark Brown
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox