diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-05-14 13:42:34 -0700 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2011-05-27 10:49:09 +0100 |
| commit | 4aa922c024b2a194d7b68b22a66dfcf86e7838b3 (patch) | |
| tree | 1a26ab1f3fcb48f02642c246a29e5c9ef9492665 /drivers | |
| parent | a4b4148379ef1ad460fc1aa6bcf2cde99cd91166 (diff) | |
| download | lwn-4aa922c024b2a194d7b68b22a66dfcf86e7838b3.tar.gz lwn-4aa922c024b2a194d7b68b22a66dfcf86e7838b3.zip | |
regulator: Only apply voltage constraints from consumers that set them
When applying the set_voltage() requests from consumers skip over those
consumers that haven't set anything, otherwise we'll come out with a
maximum voltage of zero.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/regulator/core.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 7287000595e5..9493f6111a38 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -158,6 +158,13 @@ static int regulator_check_consumers(struct regulator_dev *rdev, struct regulator *regulator; list_for_each_entry(regulator, &rdev->consumer_list, list) { + /* + * Assume consumers that didn't say anything are OK + * with anything in the constraint range. + */ + if (!regulator->min_uV && !regulator->max_uV) + continue; + if (*max_uV > regulator->max_uV) *max_uV = regulator->max_uV; if (*min_uV < regulator->min_uV) |