linux-kernel - Re: [PATCH v3 2/5] dt-bindings: interconnect: qcom: Split out rpmh-common bindings

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Date:   Thu, 26 May 2022 14:34:38 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Luca Weiss <luca.weiss@...rphone.com>,
        linux-arm-msm@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Georgi Djakov <djakov@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Odelu Kukatla <okukatla@...eaurora.org>,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/5] dt-bindings: interconnect: qcom: Split out
 rpmh-common bindings

On 25/05/2022 16:43, Luca Weiss wrote:
> In preparation for the platforms, split out common definitions used in
> rpmh-based interconnects.
> 
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
> Changes since v2:
> * Reorganize patches so order is more logical
> * Replace bouncing maintainer email with Bjorn
> * maxItems: 2 for qcom,bcm-voters and qcom,bcm-voter-names
> * Remove | from some descriptions
> 
>  .../interconnect/qcom,rpmh-common.yaml        | 43 +++++++++++++++++++
>  .../bindings/interconnect/qcom,rpmh.yaml      | 22 +++-------
>  2 files changed, 48 insertions(+), 17 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,rpmh-common.yaml
> 
> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpmh-common.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpmh-common.yaml
> new file mode 100644
> index 000000000000..e962e8dc9a61
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interconnect/qcom,rpmh-common.yaml
> @@ -0,0 +1,43 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/interconnect/qcom,rpmh-common.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm RPMh Network-On-Chip Interconnect
> +
> +maintainers:
> +  - Georgi Djakov <georgi.djakov@...aro.org>
> +  - Bjorn Andersson <bjorn.andersson@...aro.org>
> +
> +description:
> +  RPMh interconnect providers support system bandwidth requirements through
> +  RPMh hardware accelerators known as Bus Clock Manager (BCM). The provider is
> +  able to communicate with the BCM through the Resource State Coordinator (RSC)
> +  associated with each execution environment. Provider nodes must point to at
> +  least one RPMh device child node pertaining to their RSC and each provider
> +  can map to multiple RPMh resources.
> +
> +properties:
> +  '#interconnect-cells':
> +    enum: [ 1, 2 ]
> +
> +  qcom,bcm-voters:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    items:
> +      maxItems: 1
> +    maxItems: 2
> +    description:
> +      List of phandles to qcom,bcm-voter nodes that are required by
> +      this interconnect to send RPMh commands.
> +
> +  qcom,bcm-voter-names:
> +    description:
> +      Names for each of the qcom,bcm-voters specified.
> +    maxItems: 2

Property above has maxItems before description, so let's make it
consistent (also above).

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>


Best regards,
Krzysztof