Re: [RFC PATCH 1/1] drm/exynos: Move platform drivers registration to module init

[Kevin Hilman <khilman@kernel.org>]

Javier Martinez Canillas <javier.martinez@collabora.co.uk> writes:

> Hello,
>
> For completeness I'll comment what we talked with Kevin on IRC
> since probably this is the same issue that Paolo is facing.
>
> On 11/20/2014 05:41 PM, Kevin Hilman wrote:
>> Peach # setenv preboot "usb start; sleep 1"setenv bootargs
>> console=tty1 console=ttySAC3,115200 debug earlyprintk rw
>> root=/dev/mmcblk1p3 rootwait rootfstype=ext3
>
> My kernel command line is almost the same with the difference that I'm using
> clk_ignore_unused and I just checked that not passing that parameter, makes
> linux-next to hang showing the same output log that Kevin reported.

Ah!  Good find.  I confirm that adding clk_ignore_unused is getting me
booting again, but of course that is just masking a problem, so I hope
someone can shed light on which clock isn't being correctly managed.

Might I also suggest that folks have their default command-line to *not*
use clk_ignore_unused, since it's primary job is to workaround clock
bugs.

Kevin