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SubjectRe: [PATCH v2 11/14] drm/msm/a6xx: Enable optional icc voting from OPP tables
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On 14/02/2023 19:31, Konrad Dybcio wrote:
> On GMU-equipped GPUs, the GMU requests appropriate bandwidth votes
> for us. This is however not the case for the other GPUs. Add the
> dev_pm_opp_of_find_icc_paths() call to let the OPP framework handle
> bus voting as part of power level setting.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

> ---
> drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> index d6b38bfdb3b4..b08ed127f8c4 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> @@ -2338,5 +2338,9 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
> msm_mmu_set_fault_handler(gpu->aspace->mmu, gpu,
> a6xx_fault_handler);
>
> + ret = dev_pm_opp_of_find_icc_paths(&pdev->dev, NULL);
> + if (ret)
> + return ERR_PTR(ret);
> +
> return gpu;
> }

--
With best wishes
Dmitry

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