hwmon: (iio_hwmon) defer probe when no channel is found
authorQuentin Schulz <quentin.schulz@free-electrons.com>
Thu, 8 Sep 2016 14:28:35 +0000 (16:28 +0200)
committerGuenter Roeck <linux@roeck-us.net>
Fri, 9 Sep 2016 04:34:17 +0000 (21:34 -0700)
commit9417fefe6f6ec2005ff302fba33038f58ed766e3
tree6eb49f5aed13da444293fe055923d7daaa1ad6c0
parentf9f8b33d373056788a60c464dd8eb5b91ba518f8
hwmon: (iio_hwmon) defer probe when no channel is found

iio_channel_get_all returns -ENODEV when it cannot find either phandles and
properties in the Device Tree or channels whose consumer_dev_name matches
iio_hwmon in iio_map_list. The iio_map_list is filled in by iio drivers
which might be probed after iio_hwmon.

It is better to defer the probe of iio_hwmon if such error is returned by
iio_channel_get_all in order to let a chance to iio drivers to expose
channels in iio_map_list.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
drivers/hwmon/iio_hwmon.c