Unverified Commit 7ac9bbf6 authored Jul 27, 2020 by Clark Wang Committed by Mark Brown Jul 29, 2020

dt-bindings: lpspi: New property in document DT bindings for LPSPI



Add "fsl,spi-only-use-cs1-sel" to fit i.MX8DXL-EVK.
Spi common code does not support use of CS signals discontinuously.
It only uses CS1 without using CS0. So, add this property to re-config
chipselect value.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Link: https://lore.kernel.org/r/20200727031513.31774-1-xiaoning.wang@nxp.com


Signed-off-by: Mark Brown <broonie@kernel.org>

parent 4294e4ac

Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml

+7 −0

Original line number	Diff line number	Diff line
		@@ -34,6 +34,12 @@ properties:
		- const: per
		- const: ipg

		fsl,spi-only-use-cs1-sel:
		description:
		spi common code does not support use of CS signals discontinuously.
		i.MX8DXL-EVK board only uses CS1 without using CS0. Therefore, add
		this property to re-config the chipselect value in the LPSPI driver.

		required:
		- compatible
		- reg
		@@ -57,4 +63,5 @@ examples:
		<&clks IMX7ULP_CLK_DUMMY>;
		clock-names = "per", "ipg";
		spi-slave;
		fsl,spi-only-use-cs1-sel;
		};

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