[PATCH] drm/bridge_connector: use drm_kms_helper_connector_hotplug_event()

Simon Ser contact at emersion.fr
Tue Jun 20 19:01:59 UTC 2023


On Tuesday, June 20th, 2023 at 20:58, Sam Ravnborg <sam at ravnborg.org> wrote:

> On Tue, Jun 20, 2023 at 05:55:09PM +0000, Simon Ser wrote:
> 
> > This adds more information to the hotplug uevent and lets user-space
> > know that it's about a particular connector only.
> 
> Will this change have impact on user space?
> They will start to see CONNECTOR=n where they did not occur before.
> Asking as I have not really worked with the hotplug stuff.

Yes. CONNECTOR is an optional udev event property indicating that only
the specified connector has changed. User-space unaware of this
property will just ignore it. User-space aware of this property will
only refresh information about the connector instead of the whole
device.

A few months back, we've converted calls to
drm_kms_helper_connector_hotplug_event() in amdgpu and the DRM DP
helper.


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