Entaviv hanging on imx8m Nano

[Lucas Stach]

Hi Adam,

Am Freitag, dem 26.08.2022 um 10:15 -0500 schrieb Adam Ford:
> Lucas et al,
> 
> I have a custom repo with a bunch of the DSIM stuff from Jagan on 8m
> Mini adapted to run on an imx8m Nano.  From what I tell see the
> clocks, clock parents, and clock-rates appear to be setup correctly.
> At least, the clocks match the parent-child relationships and the
> clock rates match that of the NXP kernel.  The GPUMIX power domain
> lets the Etnaviv driver enumerate:
> 
>   etnaviv etnaviv: bound 38000000.gpu (ops gpu_ops [etnaviv])
>   etnaviv-gpu 38000000.gpu: model: GC7000, revision: 6203
>   [drm] Initialized etnaviv 1.3.0 20151214 for etnaviv on minor 1
> 
> I have the lcdif and DSI working, so I can see images on the screen,
> but when I attempt to enable the GPU, I get an error message
> indicating a GPU hang:
> 
>    etnaviv-gpu 38000000.gpu: recover hung GPU!
> 
> I was hoping someone might have some suggestions as to what I might be
> missing.  Do you have any suggestions?

Yes, the etnaviv driver is missing the HWDB entries for the GPU on the
Nano. We noticed this recently while Marco was working on a Nano
project and just talked about sending out the necessary patches.

I'll send out the patches today and add you to CC.

Regards,
Lucas