linux-kernel - Re: [PATCH v2 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings

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Date:   Fri, 18 Jun 2021 14:25:12 -0600
From:   Rob Herring <robh@...nel.org>
To:     Sibi Sankar <sibis@...eaurora.org>
Cc:     bjorn.andersson@...aro.org, mathieu.poirier@...aro.org,
        swboyd@...omium.org, ulf.hansson@...aro.org, rjw@...ysocki.net,
        agross@...nel.org, ohad@...ery.com, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, dianders@...omium.org,
        rishabhb@...eaurora.org, sidgup@...eaurora.org
Subject: Re: [PATCH v2 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP
 bindings

On Mon, Jun 07, 2021 at 09:09:21PM +0530, Sibi Sankar wrote:
> Add Qualcomm Mailbox Protocol (QMP) binding to replace the power domains
> exposed by the AOSS QMP node.
> 
> Signed-off-by: Sibi Sankar <sibis@...eaurora.org>
> ---
> 
> v2:
>  * Drop R-b from Rob/Stephen due to yaml conversion.
> 
>  .../devicetree/bindings/remoteproc/qcom,adsp.yaml  | 40 +++++++++++++++-------
>  1 file changed, 27 insertions(+), 13 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> index 9ea05e608bc1..b6396bc07388 100644
> --- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> @@ -89,6 +89,10 @@ properties:
>      maxItems: 1
>      description: Reference to the reserved-memory for the Hexagon core
>  
> +  qcom,qmp:

Is there more than one QMP? If not just search for the QMP node and you 
can avoid the ABI issue at least partially.

> +    $ref: /schemas/types.yaml#/definitions/phandle-array

There's more than 1 cell? What's in them?

> +    description: Reference to the AOSS side-channel message RAM.
> +
>    qcom,smem-states:
>      $ref: /schemas/types.yaml#/definitions/phandle-array
>      description: States used by the AP to signal the Hexagon core
> @@ -359,13 +363,11 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: CX power domain
>              - description: MX power domain
>              - description: MSS power domain
>          power-domain-names:
>            items:
> -            - const: load_state
>              - const: cx
>              - const: mx
>              - const: mss
> @@ -381,12 +383,7 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: CX power domain
> -        power-domain-names:
> -          items:
> -            - const: load_state
> -            - const: cx
>  
>    - if:
>        properties:
> @@ -399,12 +396,10 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: CX power domain
>              - description: MSS power domain
>          power-domain-names:
>            items:
> -            - const: load_state
>              - const: cx
>              - const: mss
>  
> @@ -439,12 +434,10 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: LCX power domain
>              - description: LMX power domain
>          power-domain-names:
>            items:
> -            - const: load_state
>              - const: lcx
>              - const: lmx
>  
> @@ -458,12 +451,10 @@ allOf:
>        properties:
>          power-domains:
>            items:
> -            - description: Load State power domain
>              - description: CX power domain
>              - description: MXC power domain
>          power-domain-names:
>            items:
> -            - const: load_state
>              - const: cx
>              - const: mxc
>  
> @@ -499,6 +490,29 @@ allOf:
>              - const: mss_restart
>              - const: pdc_reset
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,sc7180-mpss-pas
> +              - qcom,sm8150-adsp-pas
> +              - qcom,sm8150-cdsp-pas
> +              - qcom,sm8150-mpss-pas
> +              - qcom,sm8150-slpi-pas
> +              - qcom,sm8250-adsp-pas
> +              - qcom,sm8250-cdsp-pas
> +              - qcom,sm8250-slpi-pas
> +              - qcom,sm8350-adsp-pas
> +              - qcom,sm8350-cdsp-pas
> +              - qcom,sm8350-mpss-pas
> +              - qcom,sm8350-slpi-pas
> +    then:
> +      properties:
> +        qcom,qmp:
> +          items:
> +            - description: Reference to the AOSS side-channel message RAM.
> +
>  examples:
>    - |
>      #include <dt-bindings/clock/qcom,rpmcc.h>
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 
>