[PATCH v8 01/18] dt-bindings: display/msm: gpu: Document GMU wrapper-equipped A6xx

Rob Herring robh at kernel.org
Thu Jun 8 21:00:15 UTC 2023


On Mon, 29 May 2023 15:52:20 +0200, Konrad Dybcio wrote:
> The "GMU Wrapper" is Qualcomm's name for "let's treat the GPU blocks
> we'd normally assign to the GMU as if they were a part of the GMU, even
> though they are not". It's a (good) software representation of the GMU_CX
> and GMU_GX register spaces within the GPUSS that helps us programatically
> treat these de-facto GMU-less parts in a way that's very similar to their
> GMU-equipped cousins, massively saving up on code duplication.
> 
> The "wrapper" register space was specifically designed to mimic the layout
> of a real GMU, though it rather obviously does not have the M3 core et al.
> 
> GMU wrapper-equipped A6xx GPUs require clocks and clock-names to be
> specified under the GPU node, just like their older cousins. Account
> for that.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio at linaro.org>
> ---
>  .../devicetree/bindings/display/msm/gpu.yaml       | 61 ++++++++++++++++++----
>  1 file changed, 52 insertions(+), 9 deletions(-)
> 

Acked-by: Rob Herring <robh at kernel.org>



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