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Message-ID: <5fcc52c1-8124-7099-1373-4ca6482ff911@linaro.org>
Date: Tue, 6 Sep 2022 15:37:09 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Abel Vesa <abel.vesa@...aro.org>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Amol Maheshwari <amahesh@....qualcomm.com>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...ainline.org>,
Rob Herring <robh@...nel.org>,
Mathieu Poirier <mathieu.poirier@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
linux-remoteproc@...r.kernel.org, David Heidelberg <david@...t.cz>
Subject: Re: [PATCH v10] dt-bindings: misc: fastrpc convert bindings to yaml
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@...aro.org>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> Co-developed-by: David Heidelberg <david@...t.cz>
> Signed-off-by: David Heidelberg <david@...t.cz>
> Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> ---
>
> 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@...aro.org>
> +
> +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
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