[PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed

Russell King - ARM Linux
2015-09-04T10:20:03Z

On Thu, Sep 03, 2015 at 11:04:40AM +0200, Thierry Reding wrote:
> Conversely, if the panel isn't capable of generating an HPD signal, then
> I don't think it would be appropriate to make it a DT property. It would
> be better to hard-code it in the driver, lest someone forget to set the
> property in DT and get stuck with a device that isn't operational.

There is another way to deal with this: DRM supports the idea of connector
forcing - where you can force the connector to think that it's connected
or disconnected.

One of the problems is that not many ARM DRM drivers implement it - maybe
it should be a requirement for code to be accepted? :)

--
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.