linux-kernel - Re: [PATCH 1/4] dt-bindings: hwlock: qcom: Migrate binding to YAML

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Date:   Wed, 27 May 2020 13:31:08 -0600
From:   Rob Herring <robh@...nel.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Andy Gross <agross@...nel.org>, Ohad Ben-Cohen <ohad@...ery.com>,
        Baolin Wang <baolin.wang7@...il.com>,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] dt-bindings: hwlock: qcom: Migrate binding to YAML

On Tue, May 12, 2020 at 05:54:38PM -0700, Bjorn Andersson wrote:
> Migrate the Qualcomm TCSR mutex binding to YAML to allow validation.

Where's the deletion of the old text file?

Looks fine if this is existing. Lots of comments if this is a new 
binding...

> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
>  .../bindings/hwlock/qcom-hwspinlock.yaml      | 51 +++++++++++++++++++
>  1 file changed, 51 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml
> 
> diff --git a/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml
> new file mode 100644
> index 000000000000..71e63b52edd5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwlock/qcom-hwspinlock.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Hardware Mutex Block
> +
> +maintainers:
> +  - Bjorn Andersson <bjorn.andersson@...aro.org>
> +
> +description:
> +  The hardware block provides mutexes utilized between different processors on
> +  the SoC as part of the communication protocol used by these processors.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,sfpb-mutex
> +      - qcom,tcsr-mutex
> +
> +  '#hwlock-cells':
> +    const: 1
> +
> +  syscon:
> +    $ref: "/schemas/types.yaml#/definitions/phandle-array"
> +    description:
> +      Should be a triple of phandle referencing the TCSR mutex syscon, offset
> +      of first mutex within the syscon and stride between each mutex.
> +
> +required:
> +  - compatible
> +  - '#hwlock-cells'
> +  - syscon
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +        tcsr_mutex_block: syscon@...84000 {
> +                compatible = "syscon";
> +                reg = <0xfd484000 0x2000>;
> +        };
> +
> +        hwlock {
> +                compatible = "qcom,tcsr-mutex";
> +                syscon = <&tcsr_mutex_block 0 0x80>;
> +
> +                #hwlock-cells = <1>;
> +        };
> +...
> -- 
> 2.26.2
>