Re: [PATCH RFC RFT] drm/msm: adreno: attach the GMU device to a driver

[Akhil P Oommen]

On 10/22/2025 6:14 PM, Neil Armstrong wrote:
> Due to the sync_state is enabled by default in pmdomain & CCF since v6.17,
> the GCC and GPUCC sync_state would stay pending, leaving the resources in
> full performance:
> gcc-x1e80100 100000.clock-controller: sync_state() pending due to 3d6a000.gmu
> gpucc-x1e80100 3d90000.clock-controller: sync_state() pending due to 3d6a000.gmu
> 
> In order to fix this state and allow the GMU to be properly
> probed, let's add a proper driver for the GMU and add it to
> the MSM driver components.
> 
> Only the proper GMU has been tested since I don't have
> access to hardware with a GMU wrapper.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/msm/adreno/a6xx_gmu.c      | 354 ++++++++++++++---------------
>  drivers/gpu/drm/msm/adreno/a6xx_gpu.c      |   6 -
>  drivers/gpu/drm/msm/adreno/a6xx_gpu.h      |   3 -
>  drivers/gpu/drm/msm/adreno/adreno_device.c |   4 +
>  drivers/gpu/drm/msm/adreno/adreno_gpu.h    |   4 +
>  drivers/gpu/drm/msm/msm_drv.c              |  16 +-
>  6 files changed, 192 insertions(+), 195 deletions(-)
> 

Niel,

Could you please send the follow up revision of this patch? Lets get
this fix merged.

-Akhil.