Re: [PATCH] drm/msm/a6xx: Remove unneeded GBIF unhalt

[John Stultz]

On Tue, Feb 4, 2020 at 9:42 AM Jordan Crouse <jcrouse@xxxxxxxxxxxxxx> wrote:
>
> Commit e812744c5f95 ("drm: msm: a6xx: Add support for A618") added a
> universal GBIF un-halt into a6xx_start(). This can cause problems for
> a630 targets which do not use GBIF and might have access protection
> enabled on the region now occupied by the GBIF registers.
>
> But it turns out that we didn't need to unhalt the GBIF in this path
> since the stop function already takes care of that after executing a flush
> but before turning off the headswitch. We should be confident that the
> GBIF is open for business when we restart the hardware.
>
> Signed-off-by: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx>

Sorry, yesterday got busy with other things and I didn't get around to
testing your patch, but I have tested earlier with my own patch which
is identical:
  https://git.linaro.org/people/john.stultz/android-dev.git/commit/?h=dev/db845c-mainline-WIP&id=4e6a2e84dd77fe74faa1a6b797eb0ee7bf11ffd7

So, I think I can safely add:
Tested-by: John Stultz <john.stultz@xxxxxxxxxx>

Thanks so much for the quick turnaround on this!
-john