linux-kernel - Re: [PATCH 1/5] spi: add spi_optimize

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Message-ID: <890cc62c-9ae3-41b7-98a8-2c3245570045@sirena.org.uk>
Date: Tue, 13 Feb 2024 17:55:43 +0000
From: Mark Brown <broonie@...nel.org>
To: Nuno Sá <noname.nuno@...il.com>
Cc: David Lechner <dlechner@...libre.com>,
	Martin Sperl <kernel@...tin.sperl.org>,
	David Jander <david@...tonic.nl>,
	Jonathan Cameron <jic23@...nel.org>,
	Michael Hennerich <michael.hennerich@...log.com>,
	Nuno Sá <nuno.sa@...log.com>,
	Alain Volmat <alain.volmat@...s.st.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org, linux-iio@...r.kernel.org
Subject: Re: [PATCH 1/5] spi: add spi_optimize_message() APIs

On Tue, Feb 13, 2024 at 10:53:56AM +0100, Nuno Sá wrote:
> On Mon, 2024-02-12 at 17:26 -0600, David Lechner wrote:
> > This adds a new spi_optimize_message() function that can be used to
> > optimize SPI messages that are used more than once. Peripheral drivers
> > that use the same message multiple times can use this API to perform SPI
> > message validation and controller-specific optimizations once and then
> > reuse the message while avoiding the overhead of revalidating the

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