Commit 7ac9bbf6 authored by Clark Wang's avatar Clark Wang Committed by Mark Brown

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: default avatarClark Wang <xiaoning.wang@nxp.com>
Link: https://lore.kernel.org/r/20200727031513.31774-1-xiaoning.wang@nxp.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
parent 4294e4ac
...@@ -34,6 +34,12 @@ properties: ...@@ -34,6 +34,12 @@ properties:
- const: per - const: per
- const: ipg - 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: required:
- compatible - compatible
- reg - reg
...@@ -57,4 +63,5 @@ examples: ...@@ -57,4 +63,5 @@ examples:
<&clks IMX7ULP_CLK_DUMMY>; <&clks IMX7ULP_CLK_DUMMY>;
clock-names = "per", "ipg"; clock-names = "per", "ipg";
spi-slave; spi-slave;
fsl,spi-only-use-cs1-sel;
}; };
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