If a regulator only supports a single voltage list_voltage() can be used
to report what that voltage is so add this as one of the criteria for
creating the microvolts file in sysfs.
Signed-off-by: Mark Brown <broo...@opensource.wolfsonmicro.com>
---
drivers/regulator/core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 06186ba..db7d59a 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3020,7 +3020,8 @@ static int add_regulator_attributes(struct regulator_dev
*rdev)
/* some attributes need specific methods to be displayed */
if ((ops->get_voltage && ops->get_voltage(rdev) >= 0) ||
- (ops->get_voltage_sel && ops->get_voltage_sel(rdev) >= 0)) {
+ (ops->get_voltage_sel && ops->get_voltage_sel(rdev) >= 0) ||
+ (ops->list_voltage && ops->list_voltage(rdev, 0) >= 0)) {
status = device_create_file(dev, &dev_attr_microvolts);
if (status < 0)
return status;
--
1.7.10.4
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