Re: [PATCH v2 6/6] drm/msm/a6xx: Limit GXPD votes to recovery in A8x

[Konrad Dybcio]

On 4/27/26 8:39 AM, Taniya Das wrote:
> From: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxxxx>
> 
> In A8x GPUs, the GX GDSC is moved to a separate block called GXCLKCTL
> which is under the GX power domain. Due to the way the support for this
> block is implemented in its driver, pm_runtime votes result in a vote on
> GX/GMxC/MxC rails from the APPS RSC. This is against the Adreno
> architecture which require GMU to be the sole voter of these collapsible
> rails on behalf of GPU, except during the GPU/GMU recovery.
> 
> To align with this architectural requirement and to realize the power
> benefits of the IFPC feature, remove the GXPD votes during gmu resume
> and suspend. And during the recovery sequence, enable/disable the GXPD
> along with the 'synced_poweroff' genpd hint to force collapse this GDSC.
> 
> Signed-off-by: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxxxx>
> Signed-off-by: Taniya Das <taniya.das@xxxxxxxxxxxxxxxx>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Konrad