[Freedreno] [PATCH] drm/msm/devfreq: Restrict idle clamping to a618 for now

[John Stultz]

On Mon, Oct 18, 2021 at 8:31 AM Rob Clark <robdclark at gmail.com> wrote:
>
> From: Rob Clark <robdclark at chromium.org>
>
> Until we better understand the stability issues caused by frequent
> frequency changes, lets limit them to a618.
>
> Signed-off-by: Rob Clark <robdclark at chromium.org>
> ---
> Caleb/John, I think this should help as a workaround for the power
> instability issues on a630.. could you give it a try?

While I hit it fairly often, I can't reliably reproduce the crash, but
in limited testing this seems ok to me.
I've not hit the crash so far, nor seen any other negative side
effects over 5.14.

So for what that's worth:
Tested-by: John Stultz <john.stultz at linaro.org>

Caleb has better luck tripping this issue right away, so they can
hopefully provide a more assured response.

thanks
-john