linux-kernel - Re: [PATCH 4/6] spi: axi-spi-engine: support SPI_MULTI_BUS_MODE

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Message-ID: <90407135-f9fc-4b83-a2b2-393bb20aef87@sirena.org.uk>
Date: Wed, 15 Oct 2025 13:03:16 +0100
From: Mark Brown <broonie@...nel.org>
To: Nuno Sá <noname.nuno@...il.com>
Cc: David Lechner <dlechner@...libre.com>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Marcelo Schmitt <marcelo.schmitt@...log.com>,
	Michael Hennerich <michael.hennerich@...log.com>,
	Nuno Sá <nuno.sa@...log.com>,
	Jonathan Cameron <jic23@...nel.org>,
	Andy Shevchenko <andy@...nel.org>,
	Sean Anderson <sean.anderson@...ux.dev>, linux-spi@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-iio@...r.kernel.org
Subject: Re: [PATCH 4/6] spi: axi-spi-engine: support
 SPI_MULTI_BUS_MODE_STRIPE

On Wed, Oct 15, 2025 at 11:30:39AM +0100, Nuno Sá wrote:
> On Tue, 2025-10-14 at 17:02 -0500, David Lechner wrote:
> > Add support for SPI_MULTI_BUS_MODE_STRIPE to the AXI SPI engine driver.
> > 
> > The v2.0.0 version of the AXI SPI Engine IP core supports multiple
> > buses. This can be used with SPI_MULTI_BUS_MODE_STRIPE to support
> > reading from simultaneous sampling ADCs that have a separate SDO line
> > for each analog channel. This allows reading all channels at the same
> > time to increase throughput.

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