linux-kernel - Re: [PATCH v1 3/3] spi: add support for microchip "soft" spi controller

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Message-ID: <20251104-unified-velcro-01219faf6dbd@wendy>
Date: Tue, 4 Nov 2025 08:59:03 +0000
From: Conor Dooley <conor.dooley@...rochip.com>
To: Prajna Rajendra Kumar <prajna.rajendrakumar@...rochip.com>
CC: Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>, "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>, <linux-riscv@...ts.infradead.org>,
	<linux-spi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<devicetree@...r.kernel.org>, Daire McNamara <daire.mcnamara@...rochip.com>,
	Valentina Fernandez Alanis <valentina.fernandezalanis@...rochip.com>, "Cyril
 Jean" <cyril.jean@...rochip.com>
Subject: Re: [PATCH v1 3/3] spi: add support for microchip "soft" spi
 controller

On Mon, Nov 03, 2025 at 04:05:15PM +0000, Prajna Rajendra Kumar wrote:
> Introduce driver support for the Microchip FPGA CoreSPI IP.
> 
> This driver supports only the Motorola SPI mode. TI and NSC modes are
> not currently supported.

When you send v2, it's probably worth mentioning all of the other
restrictions the driver current has, that are being enforced in probe.

> +static struct platform_driver mchp_corespi_driver = {
> +	.probe = mchp_corespi_probe,
> +	.driver = {
> +		.name = "microchip-corespi",
> +		.pm = MICROCHIP_SPI_PM_OPS,
> +		.of_match_table = of_match_ptr(mchp_corespi_dt_ids),
> +	},
> +	.remove_new = mchp_corespi_remove,

As the lkp bot pointed out, this doesn't exist in the tree any more,
probably since 6.13 or so. Please test patches you're sending upstream
against upstream.


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