Messages in this thread Patch in this message | | | From | Marek Szyprowski <> | Subject | [PATCH v3] regulator: treat regulators with constant volatage as fixed | Date | Tue, 13 Nov 2012 10:49:37 +0100 |
| |
Some drivers has additional logic for fixed regulators. Let regulator core to treat regulators which cannot change their voltage due to applied constraints as fixed.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> --- drivers/regulator/core.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 042c1ff..d07c240 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1872,7 +1872,14 @@ int regulator_count_voltages(struct regulator *regulator) { struct regulator_dev *rdev = regulator->rdev; - return rdev->desc->n_voltages ? : -EINVAL; + if (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE) { + if (rdev->desc->n_voltages) + return rdev->desc->n_voltages; + else + return -EINVAL; + } else { + return 1; + } } EXPORT_SYMBOL_GPL(regulator_count_voltages); -- 1.7.9.5
| |