Re: [PATCH 2/3] dt-bindings: soc: qcom: aoss: Convert to YAML

[Rob Herring <robh@kernel.org>]

On Fri, Jun 25, 2021 at 04:40:17PM -0700, Bjorn Andersson wrote:
> Convert to YAML in order to allow validation.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> ---
> 
> I'm aware that this conflicts with Sibi's removal of '#power-domain-cells', but
> that's a trivial change regardless of which of the two patches gets in first.
> 
>  .../bindings/soc/qcom/qcom,aoss-qmp.txt       |  90 --------------
>  .../bindings/soc/qcom/qcom,aoss-qmp.yaml      | 115 ++++++++++++++++++
>  2 files changed, 115 insertions(+), 90 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt
>  create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt
> deleted file mode 100644
> index 3747032311a4..000000000000
> --- a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt
> +++ /dev/null
> @@ -1,90 +0,0 @@
> -Qualcomm Always-On Subsystem side channel binding
> -
> -This binding describes the hardware component responsible for side channel
> -requests to the always-on subsystem (AOSS), used for certain power management
> -requests that is not handled by the standard RPMh interface. Each client in the
> -SoC has it's own block of message RAM and IRQ for communication with the AOSS.
> -The protocol used to communicate in the message RAM is known as Qualcomm
> -Messaging Protocol (QMP)
> -
> -The AOSS side channel exposes control over a set of resources, used to control
> -a set of debug related clocks and to affect the low power state of resources
> -related to the secondary subsystems. These resources are exposed as a set of
> -power-domains.
> -
> -- compatible:
> -	Usage: required
> -	Value type: <string>
> -	Definition: must be one of:
> -		    "qcom,sc7180-aoss-qmp"
> -		    "qcom,sc7280-aoss-qmp"
> -		    "qcom,sc8180x-aoss-qmp"
> -		    "qcom,sdm845-aoss-qmp"
> -		    "qcom,sm8150-aoss-qmp"
> -		    "qcom,sm8250-aoss-qmp"
> -		    "qcom,sm8350-aoss-qmp"
> -		    and:
> -		    "qcom,aoss-qmp"
> -
> -- reg:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: the base address and size of the message RAM for this
> -		    client's communication with the AOSS
> -
> -- interrupts:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: should specify the AOSS message IRQ for this client
> -
> -- mboxes:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: reference to the mailbox representing the outgoing doorbell
> -		    in APCS for this client, as described in mailbox/mailbox.txt
> -
> -- #clock-cells:
> -	Usage: optional
> -	Value type: <u32>
> -	Definition: must be 0
> -		    The single clock represents the QDSS clock.
> -
> -- #power-domain-cells:
> -	Usage: optional
> -	Value type: <u32>
> -	Definition: must be 1
> -		    The provided power-domains are:
> -		    CDSP state (0), LPASS state (1), modem state (2), SLPI
> -		    state (3), SPSS state (4) and Venus state (5).
> -
> -= SUBNODES
> -The AOSS side channel also provides the controls for three cooling devices,
> -these are expressed as subnodes of the QMP node. The name of the node is used
> -to identify the resource and must therefor be "cx", "mx" or "ebi".
> -
> -- #cooling-cells:
> -	Usage: optional
> -	Value type: <u32>
> -	Definition: must be 2
> -
> -= EXAMPLE
> -
> -The following example represents the AOSS side-channel message RAM and the
> -mechanism exposing the power-domains, as found in SDM845.
> -
> -  aoss_qmp: qmp@c300000 {
> -	  compatible = "qcom,sdm845-aoss-qmp", "qcom,aoss-qmp";
> -	  reg = <0x0c300000 0x100000>;
> -	  interrupts = <GIC_SPI 389 IRQ_TYPE_EDGE_RISING>;
> -	  mboxes = <&apss_shared 0>;
> -
> -	  #power-domain-cells = <1>;
> -
> -	  cx_cdev: cx {
> -		#cooling-cells = <2>;
> -	  };
> -
> -	  mx_cdev: mx {
> -		#cooling-cells = <2>;
> -	  };
> -  };
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml
> new file mode 100644
> index 000000000000..1b9de8e49356
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml
> @@ -0,0 +1,115 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/qcom/qcom,aoss-qmp.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Always-On Subsystem side channel binding
> +
> +maintainers:
> +  - Bjorn Andersson <bjorn.andersson@linaro.org>
> +
> +description:
> +  This binding describes the hardware component responsible for side channel
> +  requests to the always-on subsystem (AOSS), used for certain power management
> +  requests that is not handled by the standard RPMh interface. Each client in the
> +  SoC has it's own block of message RAM and IRQ for communication with the AOSS.
> +  The protocol used to communicate in the message RAM is known as Qualcomm
> +  Messaging Protocol (QMP)
> +
> +  The AOSS side channel exposes control over a set of resources, used to control
> +  a set of debug related clocks and to affect the low power state of resources
> +  related to the secondary subsystems. These resources are exposed as a set of
> +  power-domains.
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +        - "qcom,sc7180-aoss-qmp"
> +        - "qcom,sc7280-aoss-qmp"
> +        - "qcom,sc8180x-aoss-qmp"
> +        - "qcom,sdm845-aoss-qmp"
> +        - "qcom,sm8150-aoss-qmp"
> +        - "qcom,sm8250-aoss-qmp"
> +        - "qcom,sm8350-aoss-qmp"
> +      - const: "qcom,aoss-qmp"

Don't need quotes. With that and the indentation fixed:

Reviewed-by: Rob Herring <robh@kernel.org>