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authorAxel Lin <axel.lin@gmail.com>2012-08-08 20:22:35 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-08-28 11:00:26 -0700
commit4e1d67eddf70f815b77af5354aaa5e60084fde8b (patch)
treefd24c00e7ac30de131eb1b31bb8fbe0cf522d4e7 /drivers/regulator/lp872x.c
parent73f4f3d37604ff7084e6157745610c8fb07d27b6 (diff)
downloadlinux-4e1d67eddf70f815b77af5354aaa5e60084fde8b.tar.bz2
regulator: lp872x: set_current_limit should select the maximum current in specific range
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/lp872x.c')
-rw-r--r--drivers/regulator/lp872x.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c
index 212c38eaba70..6199d0f6cca1 100644
--- a/drivers/regulator/lp872x.c
+++ b/drivers/regulator/lp872x.c
@@ -374,8 +374,8 @@ static int lp8725_buck_set_current_limit(struct regulator_dev *rdev,
{
struct lp872x *lp = rdev_get_drvdata(rdev);
enum lp872x_regulator_id buck = rdev_get_id(rdev);
- int i, max = ARRAY_SIZE(lp8725_buck_uA);
- u8 addr, val;
+ int i;
+ u8 addr;
switch (buck) {
case LP8725_ID_BUCK1:
@@ -388,17 +388,15 @@ static int lp8725_buck_set_current_limit(struct regulator_dev *rdev,
return -EINVAL;
}
- for (i = 0 ; i < max ; i++)
+ for (i = ARRAY_SIZE(lp8725_buck_uA) - 1 ; i >= 0; i--) {
if (lp8725_buck_uA[i] >= min_uA &&
lp8725_buck_uA[i] <= max_uA)
- break;
-
- if (i == max)
- return -EINVAL;
-
- val = i << LP8725_BUCK_CL_S;
+ return lp872x_update_bits(lp, addr,
+ LP8725_BUCK_CL_M,
+ i << LP8725_BUCK_CL_S);
+ }
- return lp872x_update_bits(lp, addr, LP8725_BUCK_CL_M, val);
+ return -EINVAL;
}
static int lp8725_buck_get_current_limit(struct regulator_dev *rdev)