linux-kernel - Re: [PATCH v3 03/15] dt-bindings: interconnect: split SC8180x to own schema

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Date:   Wed, 31 May 2023 10:22:39 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Vinod Koul <vkoul@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Georgi Djakov <djakov@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 03/15] dt-bindings: interconnect: split SC8180x to own
 schema

On 30/05/2023 18:24, Vinod Koul wrote:
> SC8180x comes with interconnects with missing IO address space and
> variable number of clocks, so split it from common file for easier
> maintenance and to fix warnings like:
> 
> sc8180x-lenovo-flex-5g.dtb: interconnect-0: 'reg' is a required property
> 
> Signed-off-by: Vinod Koul <vkoul@...nel.org>
> ---
>  .../bindings/interconnect/qcom,rpmh.yaml      | 11 -----
>  .../interconnect/qcom,sc8180x-rpmh.yaml       | 49 +++++++++++++++++++
>  2 files changed, 49 insertions(+), 11 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,sc8180x-rpmh.yaml
> 
> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml
> index 4d93ad415e0b..5cbc3be49e99 100644
> --- a/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml
> +++ b/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml
> @@ -39,17 +39,6 @@ properties:
>        - qcom,sc7180-npu-noc
>        - qcom,sc7180-qup-virt
>        - qcom,sc7180-system-noc
> -      - qcom,sc8180x-aggre1-noc
> -      - qcom,sc8180x-aggre2-noc
> -      - qcom,sc8180x-camnoc-virt
> -      - qcom,sc8180x-compute-noc
> -      - qcom,sc8180x-config-noc
> -      - qcom,sc8180x-dc-noc
> -      - qcom,sc8180x-gem-noc
> -      - qcom,sc8180x-mc-virt
> -      - qcom,sc8180x-mmss-noc
> -      - qcom,sc8180x-qup-virt
> -      - qcom,sc8180x-system-noc
>        - qcom,sdm670-aggre1-noc
>        - qcom,sdm670-aggre2-noc
>        - qcom,sdm670-config-noc
> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,sc8180x-rpmh.yaml b/Documentation/devicetree/bindings/interconnect/qcom,sc8180x-rpmh.yaml
> new file mode 100644
> index 000000000000..b182c2c5addc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interconnect/qcom,sc8180x-rpmh.yaml
> @@ -0,0 +1,49 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/interconnect/qcom,sc8180x-rpmh.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm RPMh Network-On-Chip Interconnect on SC8180X
> +
> +maintainers:
> +  - Bjorn Andersson <andersson@...nel.org>
> +  - Konrad Dybcio <konrad.dybcio@...aro.org>
> +
> +description: |
> +  RPMh interconnect providers support system bandwidth requirements through
> +  RPMh hardware accelerators known as Bus Clock Manager (BCM).
> +
> +  See also:: include/dt-bindings/interconnect/qcom,sc8180x.h
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,sc8180x-aggre1-noc
> +      - qcom,sc8180x-aggre2-noc
> +      - qcom,sc8180x-camnoc-virt
> +      - qcom,sc8180x-compute-noc
> +      - qcom,sc8180x-config-noc
> +      - qcom,sc8180x-dc-noc
> +      - qcom,sc8180x-gem-noc
> +      - qcom,sc8180x-ipa-virt
> +      - qcom,sc8180x-mc-virt
> +      - qcom,sc8180x-mmss-noc
> +      - qcom,sc8180x-qup-virt
> +      - qcom,sc8180x-system-noc
> +
> +required:
> +  - compatible
> +
> +allOf:
> +  - $ref: qcom,rpmh-common.yaml#

This should be based on sc7280. You need reg for some of the entries.

> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    interconnect-0 {

Just "interconnect"


> +        compatible = "qcom,sc8180x-camnoc-virt";
> +        #interconnect-cells = <2>;
> +        qcom,bcm-voters = <&apps_bcm_voter>;
> +    };

Best regards,
Krzysztof