regulator: core: Report microvolts in sysfs even with only list_volta…

…ge() 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 <[email protected]>
preee · Sep 7, 2012 · f2889e6 · f2889e6
1 parent 380a0e6
commit f2889e6
Showing 1 changed file with 2 additions and 1 deletion.
diff --git 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;