linux-kernel - Re: [PATCH v3 1/4] dt-bindings: mtd: partitions: Add binding for Qcom SMEM parser

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Message-ID: <20201211033140.GA4222@work>
Date:   Fri, 11 Dec 2020 09:01:40 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Rob Herring <robh@...nel.org>
Cc:     miquel.raynal@...tlin.com, richard@....at, vigneshr@...com,
        bjorn.andersson@...aro.org, linux-mtd@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/4] dt-bindings: mtd: partitions: Add binding for
 Qcom SMEM parser

On Mon, Dec 07, 2020 at 03:52:36PM -0600, Rob Herring wrote:
> On Thu, Nov 19, 2020 at 12:43:05PM +0530, Manivannan Sadhasivam wrote:
> > Add YAML binding for Qualcomm Shared Memory (SMEM) Flash partition
> > parser.
> > 
> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> > ---
> >  .../mtd/partitions/qcom,smem-part.yaml        | 33 +++++++++++++++++++
> >  1 file changed, 33 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/mtd/partitions/qcom,smem-part.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/mtd/partitions/qcom,smem-part.yaml b/Documentation/devicetree/bindings/mtd/partitions/qcom,smem-part.yaml
> > new file mode 100644
> > index 000000000000..cf3f8c1e035d
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mtd/partitions/qcom,smem-part.yaml
> > @@ -0,0 +1,33 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mtd/partitions/qcom,smem-part.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Qualcomm SMEM NAND flash partition parser binding
> > +
> > +maintainers:
> > +  - Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> > +
> > +description: |
> > +  The Qualcomm SoCs supporting the NAND controller interface features a Shared
> > +  Memory (SMEM) based partition table scheme. The maximum partitions supported
> > +  varies between partition table revisions. V3 supports maximum 16 partitions
> > +  and V4 supports 48 partitions.
> 
> V3 vs. V4 (and any other version for that matter) is discoverable?
> 

Yes, it is discoverable based on the partition header and we do that in
the parser.

Thanks,
Mani

> > +
> > +properties:
> > +  compatible:
> > +    const: qcom,smem-part
> > +
> > +required:
> > +  - compatible
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    flash {
> > +        partitions {
> > +            compatible = "qcom,smem-part";
> > +        };
> > +    };
> > -- 
> > 2.17.1
> >