linux-kernel - Re: [PATCH v3 2/7] spi: Support controllers with multiple data lanes

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Message-ID: <f6f66056-f508-497f-a1a3-f4d933754859@baylibre.com>
Date: Tue, 2 Dec 2025 08:47:39 -0600
From: David Lechner <dlechner@...libre.com>
To: Andy Shevchenko <andriy.shevchenko@...el.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 v3 2/7] spi: Support controllers with multiple data lanes

On 12/2/25 8:44 AM, Andy Shevchenko wrote:
> On Mon, Dec 01, 2025 at 08:20:40PM -0600, David Lechner wrote:
>> Add support for SPI controllers with multiple physical SPI data lanes.
>> (A data lane in this context means lines connected to a serializer, so a
>> controller with two data lanes would have two serializers in a single
>> controller).
> 
> I'm a bit confused. Does it mean the three data lanes require three
> serializers?
> 
Correct.