Re: drm: imx: callback after probe deferral not working

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On Thu, Jan 28, 2016 at 4:29 PM, Rob Clark <robdclark@xxxxxxxxx> wrote:
> can't really say if that is the issue in this case, but these are the
> symptoms you'd see if the kernel was built without some driver that
> imx-drm depends on[1].  The kernel will only try to reprobe a driver
> if some other driver has loaded since it last deferred (otherwise, it
> would be pointless, you'd just -EPROBE_DEFER again).
>
> [1] which is a really annoying thing about devicetree..  there's no
> good way to figure out which drivers need to be enabled in kernel
> config..

The same problem existed w/o DT. It could be solved with
board/platform kconfigs to turn on all dependencies, but then we'd be
back to having board files to some extent. IIRC, Geert U has a script
that generates the config entries from dts files.

Rob
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