linux-kernel - Re: [PATCH 13/13] dt-bindings: lpspi: Document support for S32G

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Message-ID: <aJ4psW2Qul4x2bQ4@lizhi-Precision-Tower-5810>
Date: Thu, 14 Aug 2025 14:23:45 -0400
From: Frank Li <Frank.li@....com>
To: James Clark <james.clark@...aro.org>
Cc: Mark Brown <broonie@...nel.org>, Clark Wang <xiaoning.wang@....com>,
	Fugang Duan <B38611@...escale.com>, Gao Pan <pandy.gao@....com>,
	Fugang Duan <fugang.duan@....com>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Larisa Grigore <larisa.grigore@....nxp.com>,
	Larisa Grigore <larisa.grigore@....com>,
	Ghennadi Procopciuc <ghennadi.procopciuc@....com>,
	Ciprianmarian Costea <ciprianmarian.costea@....com>, s32@....com,
	linux-spi@...r.kernel.org, imx@...ts.linux.dev,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 13/13] dt-bindings: lpspi: Document support for S32G

On Thu, Aug 14, 2025 at 05:06:53PM +0100, James Clark wrote:
> From: Larisa Grigore <larisa.grigore@....com>
>
> S32G2 and S32G3 are currently treated the same way in the driver, so
> require that S32G3 is always paired with the S32G2 compatible string
> until there is divergence in the future.

Add compatible string 'nxp,s32g2-lpspi' and 'nxp,s32g3-lpspi' for S32G2
and S32G3. Allow nxp,s32g3-lpspi fallback to nxp,s32g2-lpspi since back
compatibity.

This is independent part with other patches, you can send seperately.

Frank
>
> Signed-off-by: Larisa Grigore <larisa.grigore@....com>
> Signed-off-by: James Clark <james.clark@...aro.org>
> ---
>  Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml b/Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml
> index 3f8833911807..9fc98b0f3428 100644
> --- a/Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml
> +++ b/Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml
> @@ -20,6 +20,7 @@ properties:
>        - enum:
>            - fsl,imx7ulp-spi
>            - fsl,imx8qxp-spi
> +          - nxp,s32g2-lpspi
>        - items:
>            - enum:
>                - fsl,imx8ulp-spi
> @@ -27,6 +28,10 @@ properties:
>                - fsl,imx94-spi
>                - fsl,imx95-spi
>            - const: fsl,imx7ulp-spi
> +      - items:
> +          - const: nxp,s32g3-lpspi
> +          - const: nxp,s32g2-lpspi
> +
>    reg:
>      maxItems: 1
>
>
> --
> 2.34.1
>