Re: [PATCH v10] dt-bindings: misc: fastrpc convert bindings to yaml

[Krzysztof Kozlowski]

On 06/09/2022 13:19, Abel Vesa wrote:
> Convert Qualcomm FastRPC bindings to yaml format, so that we could validate
> dt-entries correctly and any future additions can go into yaml format.
> 
> Use compute-cb@ subnodes instead of just cb@. Add qcom,glink-channels and
> qcom,smd-channels missing properties to make sure dtbs_check doesn't fail
> right off the bat. Correct the name of the parent node in the example from
> smd-edge to glink-edge.
> 
> Since now the qcom,fastrpc bindings document is yaml, update the
> reference to it in qcom,glink-edge and also use $ref.
> 
> Also update the MAINTAINERS file to point to the yaml version.
> 
> Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> Co-developed-by: David Heidelberg <david@xxxxxxx>
> Signed-off-by: David Heidelberg <david@xxxxxxx>
> Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxx>
> ---
> 
> Changes since v9:
>  * squashed to the MAINTAINERS file update to not break the
>    bisectability, as Krzysztof suggested.
> 
>  .../devicetree/bindings/misc/qcom,fastrpc.txt |  88 -------------
>  .../bindings/misc/qcom,fastrpc.yaml           | 123 ++++++++++++++++++
>  .../bindings/remoteproc/qcom,glink-edge.yaml  |   4 +-
>  MAINTAINERS                                   |   2 +-
>  4 files changed, 126 insertions(+), 91 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
>  create mode 100644 Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt b/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
> deleted file mode 100644
> index 5ec124b138a6..000000000000
> --- a/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
> +++ /dev/null
> @@ -1,88 +0,0 @@
> -Qualcomm Technologies, Inc. FastRPC Driver
> -
> -The FastRPC implements an IPC (Inter-Processor Communication)
> -mechanism that allows for clients to transparently make remote method
> -invocations across DSP and APPS boundaries. This enables developers
> -to offload tasks to the DSP and free up the application processor for
> -other tasks.
> -
> -- compatible:
> -	Usage: required
> -	Value type: <stringlist>
> -	Definition: must be "qcom,fastrpc"
> -
> -- label
> -	Usage: required
> -	Value type: <string>
> -	Definition: should specify the dsp domain name this fastrpc
> -	corresponds to. must be one of this: "adsp", "mdsp", "sdsp", "cdsp"
> -
> -- qcom,non-secure-domain:
> -	Usage: required
> -	Value type: <boolean>
> -	Definition: Property to specify that dsp domain is non-secure.
> -
> -- qcom,vmids:
> -	Usage: optional
> -	Value type: <u32 array>
> -	Definition: Virtual machine IDs for remote processor.
> -
> -- #address-cells
> -	Usage: required
> -	Value type: <u32>
> -	Definition: Must be 1
> -
> -- #size-cells
> -	Usage: required
> -	Value type: <u32>
> -	Definition: Must be 0
> -
> -= COMPUTE BANKS
> -Each subnode of the Fastrpc represents compute context banks available
> -on the dsp.
> -- All Compute context banks MUST contain the following properties:
> -
> -- compatible:
> -	Usage: required
> -	Value type: <stringlist>
> -	Definition: must be "qcom,fastrpc-compute-cb"
> -
> -- reg
> -	Usage: required
> -	Value type: <u32>
> -	Definition: Context Bank ID.
> -
> -- qcom,nsessions:
> -	Usage: Optional
> -	Value type: <u32>
> -	Defination: A value indicating how many sessions can share this
> -		    context bank. Defaults to 1 when this property
> -		    is not specified.
> -
> -Example:
> -
> -adsp-pil {
> -	compatible = "qcom,msm8996-adsp-pil";
> -	...
> -	smd-edge {
> -		label = "lpass";
> -		fastrpc {
> -			compatible = "qcom,fastrpc";
> -			qcom,smd-channels = "fastrpcsmd-apps-dsp";
> -			label = "adsp";
> -			#address-cells = <1>;
> -			#size-cells = <0>;
> -
> -			cb@1 {
> -				compatible = "qcom,fastrpc-compute-cb";
> -				reg = <1>;
> -			};
> -
> -			cb@2 {
> -				compatible = "qcom,fastrpc-compute-cb";
> -				reg = <2>;
> -			};
> -			...
> -		};
> -	};
> -};
> diff --git a/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
> new file mode 100644
> index 000000000000..7f43b37bb2e1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
> @@ -0,0 +1,123 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/misc/qcom,fastrpc.yaml#";
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#";
> +
> +title: Qualcomm FastRPC Driver
> +
> +maintainers:
> +  - Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> +
> +description: |
> +  The FastRPC implements an IPC (Inter-Processor Communication)
> +  mechanism that allows for clients to transparently make remote method
> +  invocations across DSP and APPS boundaries. This enables developers
> +  to offload tasks to the DSP and free up the application processor for
> +  other tasks.
> +
> +properties:
> +  compatible:
> +    items:

Nothing improved here since my feedback. I other places also missed some
of my feedback.


Best regards,
Krzysztof