[PATCH v2 1/5] spi: add spi_optimize_message() APIs

[Mark Brown]

On Mon, Feb 19, 2024 at 04:33:18PM -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
> message on each spi_(a)sync() call.

This doesn't apply against current code, please check and resend.
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