linux-kernel - Re: [PATCH 6/6] iio: adc: ad7380: Add support for multiple SPI buses

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Message-ID: <20251018191032.669f3461@jic23-huawei>
Date: Sat, 18 Oct 2025 19:10:32 +0100
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 6/6] iio: adc: ad7380: Add support for multiple SPI
 buses

On Tue, 14 Oct 2025 17:02:16 -0500
David Lechner <dlechner@...libre.com> wrote:

> Add support for multiple SPI buses to increase throughput. The AD7380
> family of ADCs have multiple SDO lines on the chip that can be used to
> read each channel on a separate SPI bus. If wired up to a SPI controller
> that supports it, the driver will now take advantage of this feature.
> This allows reaching the maximum sample rate advertised in the datasheet
> when combined with SPI offloading.
> 
> Signed-off-by: David Lechner <dlechner@...libre.com>
This seems fine to me.  I briefly looked at the rest of the series and
nothing jumped out other the many combinations of crazy that exist which
came up in the discussion,

Thanks,

Jonathan