linux-kernel - Re: [PATCH] dt-binding: soc: qcom: convert Qualcomm Command DB documentation to yaml

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Date:   Wed, 22 Dec 2021 13:26:44 -0400
From:   Rob Herring <robh@...nel.org>
To:     David Heidelberg <david@...t.cz>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        ~okias/devicetree@...ts.sr.ht, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-binding: soc: qcom: convert Qualcomm Command DB
 documentation to yaml

On Sat, Dec 18, 2021 at 07:48:54PM +0100, David Heidelberg wrote:
> Since Mahesh Sivasubramanian <msivasub@...eaurora.org> email doesn't exist
> anymore (returned with 550 User doesn't exist.), who should I assign as
> maintainer for this document?

I'll update it to Bjorn when applying.

> Davi
> 
> On Sat, Dec 18 2021 at 19:46:16 +0100, David Heidelberg <david@...t.cz>
> wrote:
> > Convert Qualcomm Command DB documentation into yaml format.
> > 
> > Signed-off-by: David Heidelberg <david@...t.cz>
> > ---
> >  .../bindings/reserved-memory/qcom,cmd-db.txt  | 37 ---------------
> >  .../bindings/reserved-memory/qcom,cmd-db.yaml | 46 +++++++++++++++++++
> >  2 files changed, 46 insertions(+), 37 deletions(-)
> >  delete mode 100644
> > Documentation/devicetree/bindings/reserved-memory/qcom,cmd-db.txt
> >  create mode 100644
> > Documentation/devicetree/bindings/reserved-memory/qcom,cmd-db.yaml
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/reserved-memory/qcom,cmd-db.txt
> > b/Documentation/devicetree/bindings/reserved-memory/qcom,cmd-db.txt
> > deleted file mode 100644
> > index 68395530c0a5..000000000000
> > --- a/Documentation/devicetree/bindings/reserved-memory/qcom,cmd-db.txt
> > +++ /dev/null
> > @@ -1,37 +0,0 @@
> > -Command DB
> > ----------
> > -
> > -Command DB is a database that provides a mapping between resource key
> > and the
> > -resource address for a system resource managed by a remote processor.
> > The data
> > -is stored in a shared memory region and is loaded by the remote
> > processor.
> > -
> > -Some of the Qualcomm Technologies Inc SoC's have hardware accelerators
> > for
> > -controlling shared resources. Depending on the board configuration the
> > shared
> > -resource properties may change. These properties are dynamically probed
> > by the
> > -remote processor and made available in the shared memory.
> > -
> > -The bindings for Command DB is specified in the reserved-memory section
> > in
> > -devicetree. The devicetree representation of the command DB driver
> > should be:
> > -
> > -Properties:
> > -- compatible:
> > -	Usage: required
> > -	Value type: <string>
> > -	Definition: Should be "qcom,cmd-db"
> > -
> > -- reg:
> > -	Usage: required
> > -	Value type: <prop encoded array>
> > -	Definition: The register address that points to the actual location of
> > -		    the Command DB in memory.
> > -
> > -Example:
> > -
> > -	reserved-memory {
> > -		[...]
> > -		reserved-memory@...e0000 {
> > -			reg = <0x0 0x85fe0000 0x0 0x20000>;
> > -			compatible = "qcom,cmd-db";
> > -			no-map;
> > -		};
> > -	};
> > diff --git
> > a/Documentation/devicetree/bindings/reserved-memory/qcom,cmd-db.yaml
> > b/Documentation/devicetree/bindings/reserved-memory/qcom,cmd-db.yaml
> > new file mode 100644
> > index 000000000000..fa5cd6a77634
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/reserved-memory/qcom,cmd-db.yaml
> > @@ -0,0 +1,46 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: "http://devicetree.org/schemas/reserved-memory/qcom,cmd-db.yaml#"
> > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> > +
> > +title: Qualcomm Command DB
> > +
> > +description: |
> > +  Command DB is a database that provides a mapping between resource key
> > and the
> > +  resource address for a system resource managed by a remote processor.
> > The data
> > +  is stored in a shared memory region and is loaded by the remote
> > processor.
> > +
> > +  Some of the Qualcomm Technologies Inc SoC's have hardware
> > accelerators for
> > +  controlling shared resources. Depending on the board configuration
> > the shared
> > +  resource properties may change. These properties are dynamically
> > probed by the
> > +  remote processor and made available in the shared memory.
> > +
> > +maintainers:
> > +  - Mahesh Sivasubramanian <msivasub@...eaurora.org>
> > +
> > +allOf:
> > +  - $ref: "reserved-memory.yaml"
> > +
> > +properties:
> > +  compatible:
> > +    const: qcom,cmd-db
> > +
> > +required:
> > +  - reg
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > +  - |
> > +    reserved-memory {
> > +        #address-cells = <1>;
> > +        #size-cells = <1>;
> > +        ranges;
> > +
> > +        reserved-memory@...e0000 {
> > +            reg = <0x85fe0000 0x20000>;
> > +            compatible = "qcom,cmd-db";
> > +            no-map;
> > +        };
> > +    };
> > --
> > 2.34.1
> > 
> 
> 
>