Subject: [PATCH 1/3] drm/vc4: Remove the need for the GPU-subsystem DT node.

From: [email-masked] (Eric Anholt)
Date: Tue, 10 Apr 2018 12:39:22 -0700

Stefan Wahren <[email-masked]> writes:

> Hi Eric,
>
>> Eric Anholt <[email-masked]> hat am 10. April 2018 um 01:00 geschrieben:
>> 
>> 
>> The GPU subsystem node was a workaround to have a central device to
>> bind V3D and display to.  Following the lead of 246774d17fc0
>> ("drm/etnaviv: remove the need for a gpu-subsystem DT node"), remove
>> the subsystem node usage and just create a platform device for the DRM
>> device to attach to if any of the subsystem devices are present.
>
> i didn't test it. Does the code change keep the backward compatibility with older DT?

Yes.
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