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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-05-14 13:42:34 -0700
committerLiam Girdwood <lrg@slimlogic.co.uk>2011-05-27 10:49:09 +0100
commit4aa922c024b2a194d7b68b22a66dfcf86e7838b3 (patch)
tree1a26ab1f3fcb48f02642c246a29e5c9ef9492665 /drivers/regulator
parenta4b4148379ef1ad460fc1aa6bcf2cde99cd91166 (diff)
downloadop-kernel-dev-4aa922c024b2a194d7b68b22a66dfcf86e7838b3.zip
op-kernel-dev-4aa922c024b2a194d7b68b22a66dfcf86e7838b3.tar.gz
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/regulator')
-rw-r--r--drivers/regulator/core.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 7287000..9493f61 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)
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