PPC GPU hangs patch

Hi,

Some GPU hangs are reported on PowerPC with some dGPUs. This patch is reported [1] to improve them:

commit 0ef2803173f1 ("drm/amdgpu/vcn1: read back register after written")

The other VCN versions are already in 6.15.9, this one didn't come back though AFAICT.

Can you take it back to remaining stable trees?

[1] https://gitlab.freedesktop.org/drm/amd/-/issues/3787

Thanks,