Entaviv hanging on imx8m Nano

[Adam Ford]

On Fri, Aug 26, 2022 at 10:19 AM Lucas Stach <l.stach at pengutronix.de> wrote:
>
> 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.

Thanks!  I'll test them and reply with by t-b tag.

adam
>
> Regards,
> Lucas
>