Messages in this thread | | | Date | Wed, 30 Jan 2013 15:46:09 +0800 | From | Mark Zhang <> | Subject | Re: [RFC 3/4] drm: tegra: use the Common Display Framework |
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On 01/30/2013 03:01 PM, Alex Courbot wrote: > On 01/30/2013 03:50 PM, Mark Zhang wrote: [...] > >>> + /* 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. >
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