On Thu, Jan 28, 2016 at 4:29 PM, Rob Clark robdclark@gmail.com 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