Re: New sysfs interface for privacy screens

[Daniel Vetter]

On Tue, Oct 08, 2019 at 09:13:51AM +0300, Jani Nikula wrote:
> On Mon, 07 Oct 2019, Mat King <mathewk@xxxxxxxxxx> wrote:
> > That makes sense; just to confirm can a property be added or removed
> > after the connector is registered?
> 
> You need to create the property before registering the drm device. You
> can attach/detach the property later, but I should think you know by the
> time you're registering the connector whether it supports the privacy
> screen or not.

I don't think you can add/remove a property after the object you're
adding/removing the prop from has gone public (either with
drm_dev_register or drm_connector_register for hotplugged connectors).

I guess another gap we should cover with some WARN_ON?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch