linux-kernel - Re: [PATCH 10/13] spi: spi-fsl-lpspi: Add compatible for S32G

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Message-ID: <aJ4qNVIp788gc2ZU@lizhi-Precision-Tower-5810>
Date: Thu, 14 Aug 2025 14:25:57 -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 10/13] spi: spi-fsl-lpspi: Add compatible for S32G

On Thu, Aug 14, 2025 at 05:06:50PM +0100, James Clark wrote:
> From: Larisa Grigore <larisa.grigore@....com>
>
> S32G doesn't have the max prescale erratum and it can query the max
> number of CS from hardware, so add those settings.

binding doc should first patch. Create new patch serial for add S32G
support only.

Frank
>
> Signed-off-by: Larisa Grigore <larisa.grigore@....com>
> Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@....com>
> Signed-off-by: James Clark <james.clark@...aro.org>
> ---
>  drivers/spi/spi-fsl-lpspi.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
> index 6d0138b27785..a4727ca37d90 100644
> --- a/drivers/spi/spi-fsl-lpspi.c
> +++ b/drivers/spi/spi-fsl-lpspi.c
> @@ -159,9 +159,15 @@ static const struct fsl_lpspi_devtype_data imx7ulp_lpspi_devtype_data = {
>  	.query_hw_for_num_cs = false,
>  };
>
> +static struct fsl_lpspi_devtype_data s32g_lpspi_devtype_data = {
> +	.prescale_err = false,
> +	.query_hw_for_num_cs = true,
> +};
> +
>  static const struct of_device_id fsl_lpspi_dt_ids[] = {
>  	{ .compatible = "fsl,imx7ulp-spi", .data = &imx7ulp_lpspi_devtype_data,},
>  	{ .compatible = "fsl,imx93-spi", .data = &imx93_lpspi_devtype_data,},
> +	{ .compatible = "nxp,s32g2-lpspi", .data = &s32g_lpspi_devtype_data,},
>  	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(of, fsl_lpspi_dt_ids);
>
> --
> 2.34.1
>