linux-kernel - Re: [PATCH v2 05/28] spi: dt-bindings: samsung: add samsung,spi-fifosize property

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Message-ID: <7ef86704-3e40-4d39-a69d-a30719c96660@sirena.org.uk>
Date: Thu, 25 Jan 2024 16:16:42 +0000
From: Mark Brown <broonie@...nel.org>
To: Tudor Ambarus <tudor.ambarus@...aro.org>
Cc: andi.shyti@...nel.org, arnd@...db.de, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
	alim.akhtar@...sung.com, linux-spi@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-arch@...r.kernel.org, andre.draszik@...aro.org,
	peter.griffin@...aro.org, semen.protsenko@...aro.org,
	kernel-team@...roid.com, willmcvicker@...gle.com
Subject: Re: [PATCH v2 05/28] spi: dt-bindings: samsung: add
 samsung,spi-fifosize property

On Thu, Jan 25, 2024 at 02:49:43PM +0000, Tudor Ambarus wrote:
> Up to now the SPI alias was used as an index into an array defined in
> the SPI driver to determine the SPI FIFO size. Drop the dependency on
> the SPI alias and allow the SPI nodes to specify their SPI FIFO size.

..

> +  samsung,spi-fifosize:
> +    description: The fifo size supported by the SPI instance.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [64, 256]

Do we have any cases where we'd ever want to vary this independently of
the SoC - this isn't a configurable IP shipped to random integrators?

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