pwm: Set class for exported channels in sysfs

Notifications for devices without bus or class set get dropped by
dev_uevent_filter(). Adding the class to the exported child matches
what the GPIO subsystem is doing.

With this change exporting a channel triggers a udev event, which
gives userspace a chance to fixup permissions and makes it possible
for non-root users to make use of the PWM subsystem.

Signed-off-by: Gottfried Haider <[email protected]>
CC: Thierry Reding <[email protected]>
CC: H Hartley Sweeten <[email protected]>
CC: [email protected]
CC: [email protected]
CC: [email protected]
Signed-off-by: Thierry Reding <[email protected]>

0 files changed, 0 insertions, 0 deletions