linux-kernel - Re: [PATCH v2 11/12] dt-bindings: nand: Add fsl,elbc-fcm-nandy

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Message-ID: <Z6pXzEG74yq2oy3Y@lizhi-Precision-Tower-5810>
Date: Mon, 10 Feb 2025 14:47:24 -0500
From: Frank Li <Frank.li@....com>
To: j.ne@...teo.net
Cc: devicetree@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	Krzysztof Kozlowski <krzk@...nel.org>, imx@...ts.linux.dev,
	Scott Wood <oss@...error.net>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Naveen N Rao <naveen@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Damien Le Moal <dlemoal@...nel.org>,
	Niklas Cassel <cassel@...nel.org>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>, Lee Jones <lee@...nel.org>,
	Vinod Koul <vkoul@...nel.org>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	J. Neuschäfer <j.neuschaefer@....net>,
	Wim Van Sebroeck <wim@...ux-watchdog.org>,
	Guenter Roeck <linux@...ck-us.net>, Mark Brown <broonie@...nel.org>,
	Miquel Raynal <miquel.raynal@...tlin.com>,
	Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, linux-crypto@...r.kernel.org,
	dmaengine@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-watchdog@...r.kernel.org, linux-spi@...r.kernel.org,
	linux-mtd@...ts.infradead.org
Subject: Re: [PATCH v2 11/12] dt-bindings: nand: Add fsl,elbc-fcm-nandy

On Fri, Feb 07, 2025 at 10:30:28PM +0100, J. Neuschäfer via B4 Relay wrote:
> From: "J. Neuschäfer" <j.ne@...teo.net>
>
> Formalize the binding already supported by the fsl_elbc_nand.c driver
> and used in several device trees in arch/powerpc/boot/dts/.
>
> Signed-off-by: J. Neuschäfer <j.ne@...teo.net>
> ---
>
> V2:
> - split out from fsl,elbc binding patch
> - constrain #address-cells and #size-cells
> - add a general description
> - use unevaluatedProperties=false instead of additionalProperties=false
> - fix property order to comply with dts coding style
> - include raw-nand-chip.yaml instead of nand-chip.yaml
> ---
>  .../devicetree/bindings/mtd/fsl,elbc-fcm-nand.yaml | 68 ++++++++++++++++++++++
>  1 file changed, 68 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mtd/fsl,elbc-fcm-nand.yaml b/Documentation/devicetree/bindings/mtd/fsl,elbc-fcm-nand.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..1de97bb24fa4a83e2ea5d94ab822dd0e37baa102
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/fsl,elbc-fcm-nand.yaml
> @@ -0,0 +1,68 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mtd/fsl,elbc-fcm-nand.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NAND flash attached to Freescale eLBC
> +
> +description:
> +  The Freescale Enhanced Local Bus controller (eLBC) contains logic to
> +  interface with NAND flash, called the NAND Flash Control Machine (FCM).
> +  This binding describes flash attached to an eLBC using the FCM.
> +
> +maintainers:
> +  - J. Neuschäfer <j.ne@...teo.net>
> +
> +allOf:
> +  - $ref: raw-nand-chip.yaml#
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - fsl,mpc8313-fcm-nand
> +              - fsl,mpc8315-fcm-nand
> +              - fsl,mpc8377-fcm-nand
> +              - fsl,mpc8378-fcm-nand
> +              - fsl,mpc8379-fcm-nand
> +              - fsl,mpc8536-fcm-nand
> +              - fsl,mpc8569-fcm-nand
> +              - fsl,mpc8572-fcm-nand
> +              - fsl,p1020-fcm-nand
> +              - fsl,p1021-fcm-nand
> +              - fsl,p1025-fcm-nand
> +              - fsl,p2020-fcm-nand
> +          - const: fsl,elbc-fcm-nand
> +      - const: fsl,elbc-fcm-nand
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    localbus {
> +        #address-cells = <2>;
> +        #size-cells = <1>;
> +
> +        nand@1,0 {
> +            compatible = "fsl,mpc8315-fcm-nand",
> +                         "fsl,elbc-fcm-nand";
> +            reg = <0x1 0x0 0x2000>;
> +            #address-cells = <1>;
> +            #size-cells = <1>;

needn't  #address-cells and #size-cells because no children nodes.

Reviewed-by: Frank Li <Frank.Li@....com>

Frank
> +        };
> +    };
>
> --
> 2.48.0.rc1.219.gb6b6757d772
>
>