Re: [PATCH 1/2] spi: dt-bindings: spi-peripheral-props: Document spi-cpha and spi-cpol
From: Conor Dooley <conor@kernel.org>
Date: 2024-08-30 14:11:05
Also in:
linux-devicetree, linux-spi
On Thu, Aug 29, 2024 at 05:13:14PM -0300, Fabio Estevam wrote:
quoted hunk ↗ jump to hunk
The 'spi-cpha' and 'spi-cpol' are commonly used SPI peripheral properties that indicate the device clock phase and polarity. Document these properties. Signed-off-by: Fabio Estevam <festevam@gmail.com> --- .../devicetree/bindings/spi/spi-peripheral-props.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+)diff --git a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml index 0bb443b8decd..b2e2717f3619 100644 --- a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml +++ b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml@@ -29,6 +29,16 @@ properties: description: Chip select used by the device. + spi-cpha: + $ref: /schemas/types.yaml#/definitions/flag + description: + The device data is sampled on trailing (last) edge of the SPI clock. + + spi-cpol: + $ref: /schemas/types.yaml#/definitions/flag + description: + The device clock has a falling lead (first) edge.
These two should just be usable with "spi-cpha: true", they're applied by the controller schema to it's child nodes, so you don't need to redefine their type here.
+
spi-cs-high:
$ref: /schemas/types.yaml#/definitions/flag
description:
--
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