linux-kernel - Re: [PATCH v2 4/6] spi: axi-spi-engine: support SPI_MULTI_BUS_MODE

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Message-ID: <aRiLjGnPLteViM2K@debian-BULLSEYE-live-builder-AMD64>
Date: Sat, 15 Nov 2025 11:17:48 -0300
From: Marcelo Schmitt <marcelo.schmitt1@...il.com>
To: David Lechner <dlechner@...libre.com>
Cc: Mark Brown <broonie@...nel.org>, 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 v2 4/6] spi: axi-spi-engine: support
 SPI_MULTI_BUS_MODE_STRIPE

On 11/07, 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.
> 
> Signed-off-by: David Lechner <dlechner@...libre.com>
> ---
> v2 changes:
> * Fixed off-by-one in SPI_ENGINE_REG_DATA_WIDTH_NUM_OF_SDIO_MASK GENMASK
> ---
Reviewed-by: Marcelo Schmitt <marcelo.schmitt@...log.com>