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authorMark Brown <broonie@opensource.wolfsonmicro.com>2009-04-28 11:09:38 +0100
committerLiam Girdwood <lrg@slimlogic.co.uk>2009-04-28 18:58:08 +0100
commit3e59091828ed5406c879b899b4257fcef7271e2c (patch)
tree8693bde47f7b5dd00bd52c40b8ede3e523c55d2b
parent030853b7abdd6effb9cb44f29e60d1d7a9592210 (diff)
downloadlinux-3e59091828ed5406c879b899b4257fcef7271e2c.tar.gz
regulator: Fix default constraints for fixed voltage regulators
Default voltage constraints were being provided for fixed voltage regulator where board constraints were not provided but these constraints used INT_MIN as the default minimum voltage which is not a valid value since it is less than zero. Use 1uV instead. Also set the default values we set in the constraints themselves since otherwise the max_uV constraint we determine will not be stored in the actual constraint strucutre and will therefore not be used. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
-rw-r--r--drivers/regulator/core.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 2f14c16f58c..98c3a74e994 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -703,10 +703,13 @@ static int set_machine_constraints(struct regulator_dev *rdev,
int cmin = constraints->min_uV;
int cmax = constraints->max_uV;
- /* it's safe to autoconfigure fixed-voltage supplies */
+ /* it's safe to autoconfigure fixed-voltage supplies
+ and the constraints are used by list_voltage. */
if (count == 1 && !cmin) {
- cmin = INT_MIN;
+ cmin = 1;
cmax = INT_MAX;
+ constraints->min_uV = cmin;
+ constraints->max_uV = cmax;
}
/* voltage constraints are optional */