Re: [PATCH v6 05/52] dt-bindings: memory: tegra20: mc: Document new interconnect property

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On Mon, Oct 26, 2020 at 01:16:48AM +0300, Dmitry Osipenko wrote:
> Memory controller is interconnected with memory clients and with the
> External Memory Controller. Document new interconnect property which
> turns memory controller into interconnect provider.
> 
> Acked-by: Rob Herring <robh@xxxxxxxxxx>
> Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
> ---
>  .../bindings/memory-controllers/nvidia,tegra20-mc.txt          | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-mc.txt b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-mc.txt
> index e55328237df4..739b7c6f2e26 100644
> --- a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-mc.txt
> +++ b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-mc.txt
> @@ -16,6 +16,8 @@ Required properties:
>    IOMMU specifier needed to encode an address. GART supports only a single
>    address space that is shared by all devices, therefore no additional
>    information needed for the address encoding.
> +- #interconnect-cells : Should be 1. This cell represents memory client.
> +  The assignments may be found in header file <dt-bindings/memory/tegra20-mc.h>.

This is a list of required properties so you break the ABI. All existing
DTBs will be affected.

Best regards,
Krzysztof



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