From: Mark Brown Date: Mon, 27 Aug 2012 18:37:04 +0000 (-0700) Subject: regulator: core: Report microvolts in sysfs even with only list_voltage() X-Git-Tag: firefly_0821_release~3680^2~2008^2^2~2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f2889e650a8dbd51644997aef7bae71d6ac4d423;p=firefly-linux-kernel-4.4.55.git regulator: core: Report microvolts in sysfs even with only list_voltage() 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 --- diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 2a3e4213865b..50977a69f09a 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;