Re: [PATCH v2 0/3] spi: Better specification for rx-sample-delay-ns and core parsing

[Mark Brown]

On Mon, 21 Sep 2026 12:16:43 +0200, Frieder Schrempf wrote:
> spi: Better specification for rx-sample-delay-ns and core parsing
> 
> "rx-sample-delay-ns" has been a generic SPI peripheral property since it
> was moved to spi-peripheral-props.yaml, but the core has never looked at
> it, and what it is meant to describe has become blurred along the way.
> 
> It was introduced in 2015 for Rockchip, to compensate "boards with
> high-capacitance SPI lines". The wording now in the generic schema came
> later, from a description of a DesignWare register, and lost its
> controller-specific qualifier on the way. It says what the value does to
> the controller, but not what a board should measure to arrive at it.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-7.4

Thanks!

[1/3] spi: dt-bindings: Clarify what rx-sample-delay-ns describes
      https://git.kernel.org/broonie/spi/c/2c68b2403acd
[2/3] spi: Parse the rx-sample-delay-ns peripheral property in the core
      https://git.kernel.org/broonie/spi/c/631a56336381
[3/3] spi: dw: Use the rx-sample-delay-ns value parsed by the core
      https://git.kernel.org/broonie/spi/c/38d4b42e4a2a

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

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Thanks,
Mark