linux-kernel - Re: [V4 1/3] dt-bindings: interconnect: Add EPSS L3 DT binding on SC7280

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Message-ID: <CAE-0n51btkt9ehEFrm+WucP90ZufKw1PEQqzNGVDRy51jByXkw@mail.gmail.com>
Date:   Thu, 8 Jul 2021 23:22:54 +0000
From:   Stephen Boyd <swboyd@...omium.org>
To:     Andy Gross <agross@...nel.org>, Georgi Djakov <djakov@...nel.org>,
        Odelu Kukatla <okukatla@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sibi Sankar <sibis@...eaurora.org>, bjorn.andersson@...aro.org,
        devicetree@...r.kernel.org, evgreen@...gle.com,
        georgi.djakov@...aro.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Cc:     seansw@....qualcomm.com, elder@...aro.org,
        linux-arm-msm-owner@...r.kernel.org
Subject: Re: [V4 1/3] dt-bindings: interconnect: Add EPSS L3 DT binding on SC7280

Quoting Odelu Kukatla (2021-06-18 04:28:52)
> Add Epoch Subsystem (EPSS) L3 interconnect provider binding on SC7280
> SoCs.
>
> Signed-off-by: Odelu Kukatla <okukatla@...eaurora.org>
> ---
>  .../devicetree/bindings/interconnect/qcom,osm-l3.yaml          |  9 ++++++++-
>  include/dt-bindings/interconnect/qcom,osm-l3.h                 | 10 +++++++++-
>  2 files changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
> index d6a95c3..9f67c8e 100644
> --- a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
> +++ b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
> @@ -18,12 +18,19 @@ properties:
>    compatible:
>      enum:
>        - qcom,sc7180-osm-l3
> +      - qcom,sc7280-epss-l3
>        - qcom,sdm845-osm-l3
>        - qcom,sm8150-osm-l3
>        - qcom,sm8250-epss-l3
>
>    reg:
> -    maxItems: 1
> +    minItems: 1
> +    maxItems: 4

Can we base this on the compatible string so that only sc7280-epss-l3
requires 4 items? and then the others require 1 reg property?

> +    items:
> +      - description: OSM clock domain-0 base address and size
> +      - description: OSM clock domain-1 base address and size
> +      - description: OSM clock domain-2 base address and size
> +      - description: OSM clock domain-3 base address and size
>
>    clocks:
>      items: