Re: [RFC 3/4] drm: tegra: use the Common Display Framework

On 01/30/2013 03:01 PM, Alex Courbot wrote:

On 01/30/2013 03:50 PM, Mark Zhang wrote:

[...]

quoted

quoted

+    /* register display notifier */
+    output->display_notifier.dev = NULL;

Set "display_notifier.dev" to NULL makes we have to compare with every
display entity, just like what you do in "display_notify_callback":

entity->dev && entity->dev->of_node = pnode

So can we get the "struct device *" of panel here? Seems currently the
"of" framework doesn't allow "device_node -> device".

Nope. AFAICT the device might not be instanciated at this point. We
become aware of it for the first time in the callback function. We also
don't want to defer probing until the panel is parsed first, since the
panel might also depend on resources of the display device.

Agree.

Thanks,
Alex.