linux-kernel - Re: [PATCH v5 2/3] dt-bindings: mtd: Document use of nvmem-cells compatible

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Date:   Thu, 11 Mar 2021 11:50:25 +0100
From:   Ansuel Smith <ansuelsmth@...il.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 2/3] dt-bindings: mtd: Document use of nvmem-cells
 compatible

On Thu, Mar 11, 2021 at 10:32:21AM -0700, Rob Herring wrote:
> On Thu, Mar 11, 2021 at 06:12:48AM +0100, Ansuel Smith wrote:
> > Document nvmem-cells compatible used to treat mtd partitions as a
> > nvmem provider.
> > 
> > Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
> > ---
> >  .../bindings/mtd/partitions/nvmem-cells.yaml  | 99 +++++++++++++++++++
> >  1 file changed, 99 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/mtd/partitions/nvmem-cells.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/mtd/partitions/nvmem-cells.yaml b/Documentation/devicetree/bindings/mtd/partitions/nvmem-cells.yaml
> > new file mode 100644
> > index 000000000000..b53faf87d4e4
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mtd/partitions/nvmem-cells.yaml
> > @@ -0,0 +1,99 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mtd/partitions/nvmem-cells.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Nvmem cells
> > +
> > +description: |
> > +  Any partition containing the compatible "nvmem-cells" will register as a
> > +  nvmem provider.
> > +  Each direct subnodes represents a nvmem cell following the nvmem binding.
> > +  Nvmem binding to declare nvmem-cells can be found in:
> > +  Documentation/devicetree/bindings/nvmem/nvmem.yaml
> > +
> > +maintainers:
> > +  - Ansuel Smith <ansuelsmth@...il.com>
> > +
> > +allOf:
> > +  - $ref: "../../nvmem/nvmem.yaml#"
> 
> I'd rather have the 'absolute' path:
> 
> /schemas/nvmem/nvmem.yaml
> 
> Otherwise,
> 
> Reviewed-by: Rob Herring <robh@...nel.org>
>

Should I send a v7?

> > +
> > +properties:
> > +  compatible:
> > +    const: nvmem-cells
> > +
> > +required:
> > +  - compatible
> > +
> > +additionalProperties: true
> > +
> > +examples:
> > +  - |
> > +    partitions {
> > +      compatible = "fixed-partitions";
> > +      #address-cells = <1>;
> > +      #size-cells = <1>;
> > +
> > +      /* ... */
> > +
> > +      };
> > +      art: art@...0000 {
> > +        compatible = "nvmem-cells";
> > +        reg = <0x1200000 0x0140000>;
> > +        label = "art";
> > +        read-only;
> > +        #address-cells = <1>;
> > +        #size-cells = <1>;
> > +
> > +        macaddr_gmac1: macaddr_gmac1@0 {
> > +          reg = <0x0 0x6>;
> > +        };
> > +
> > +        macaddr_gmac2: macaddr_gmac2@6 {
> > +          reg = <0x6 0x6>;
> > +        };
> > +
> > +        pre_cal_24g: pre_cal_24g@...0 {
> > +          reg = <0x1000 0x2f20>;
> > +        };
> > +
> > +        pre_cal_5g: pre_cal_5g@...0{
> > +          reg = <0x5000 0x2f20>;
> > +        };
> > +      };
> > +  - |
> > +    partitions {
> > +        compatible = "fixed-partitions";
> > +        #address-cells = <1>;
> > +        #size-cells = <1>;
> > +
> > +        partition@0 {
> > +            label = "bootloader";
> > +            reg = <0x000000 0x100000>;
> > +            read-only;
> > +        };
> > +
> > +        firmware@...000 {
> > +            compatible = "brcm,trx";
> > +            label = "firmware";
> > +            reg = <0x100000 0xe00000>;
> > +        };
> > +
> > +        calibration@...000 {
> > +            compatible = "nvmem-cells";
> > +            label = "calibration";
> > +            reg = <0xf00000 0x100000>;
> > +            ranges = <0 0xf00000 0x100000>;
> > +            #address-cells = <1>;
> > +            #size-cells = <1>;
> > +
> > +            wifi0@0 {
> > +                reg = <0x000000 0x080000>;
> > +            };
> > +
> > +            wifi1@...00 {
> > +                reg = <0x080000 0x080000>;
> > +            };
> > +        };
> > +    };
> > -- 
> > 2.30.0
> >