linux-kernel - Re: [PATCH v5 7/9] spi: axi-spi-engine: support SPI_MULTI_LANE_MODE

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Message-ID: <20260114091617.170a9757@jic23-huawei>
Date: Wed, 14 Jan 2026 09:16:17 +0000
From: Jonathan Cameron <jic23@...nel.org>
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>, 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 v5 7/9] spi: axi-spi-engine: support
 SPI_MULTI_LANE_MODE_STRIPE

On Mon, 12 Jan 2026 11:45:25 -0600
David Lechner <dlechner@...libre.com> wrote:

> Add support for SPI_MULTI_LANE_MODE_STRIPE to the AXI SPI engine driver.
> 
> The v2.0.0 version of the AXI SPI Engine IP core supports multiple
> lanes. This can be used with SPI_MULTI_LANE_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.
> 
> Reviewed-by: Marcelo Schmitt <marcelo.schmitt@...log.com>
> Signed-off-by: David Lechner <dlechner@...libre.com>
Hi David,

I kind of hope ADI make their versions backwards compatible (or at
least try to) so the version check might be a bit over the top.

Anyhow, not my problem and the code is nice and clean.

Reviewed-by: Jonathan Cameron <jonathan.cameron@...wei.com>