Re: [PATCH v3] staging: sm750fb: rename pv_reg to io_base

[neha arora]

Hi everyone,

After further investigation, and feedback from maintainers, I have
concluded that porting DRM to the SM750, will cause a huge performance
regression as DRM has no interface for 2D acceleration, making the CPU
do graphics, which is slow, the only way to expose 2D acceleration is
custom IOCTLs, which is not preferable.

So, it is best to keep using the fbdev stack for the SM750.

Regards,
Onish

On Wed, Jun 17, 2026 at 8:30 AM neha arora <neharora23587@xxxxxxxxx> wrote:
>
> Hi Dan,
>
> Please disregard my previous patch submission.
>
> I am currently working on a complete rewrite of the sm750fb staging
> driver into a modern, KMS-based DRM driver (sm750drm). Because this
> is a complete architectural overhaul, I am building it outside the
> staging tree structure.
>
> Once the sm750drm driver framework is stable and ready for a RFC
> (Request for Comments), I will submit the entire new subsystem patch series
> directly to the dri-devel mailing list and CC you.
>
> Thank you for your review and your time!
>
> Regards,
> Onish
>
>
> On Mon, Jun 15, 2026 at 12:34 PM Dan Carpenter <error27@xxxxxxxxx> wrote:
> >
> > On Sun, Jun 14, 2026 at 12:45:05AM +0530, neha arora wrote:
> > > Hi everyone,
> > >
> > > Just following up on this patch to ensure it didn't get lost in the queue.
> > > Please let me know if any changes or a V4 are needed.
> > >
> >
> > It doesn't apply to linux-next.  Did you work against the lastest
> > devel-next tree?
> >
> > regards,
> > dan carpenter
> >