[PATCH 4/5] spi: dt-bindings: Add hold/inactive CS delay peripheral properties

From: Hector Martin
Date: Wed Jan 04 2023 - 04:38:24 EST


From: Janne Grunau <j@xxxxxxxxxx>

These two properties complete the bindings for the Linux spi_device cs
model, which includes cs_setup, cs_hold and cs_inactive delay values.

Signed-off-by: Janne Grunau <j@xxxxxxxxxx>
Signed-off-by: Hector Martin <marcan@xxxxxxxxx>
---
.../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 9a60c0664bbe..782a014b63a7 100644
--- a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
@@ -49,6 +49,16 @@ properties:
Delay in nanoseconds to be introduced by the controller after CS is
asserted.

+ spi-cs-hold-delay-ns:
+ description:
+ Delay in nanoseconds to be introduced by the controller before CS is
+ de-asserted.
+
+ spi-cs-inactive-delay-ns:
+ description:
+ Delay in nanoseconds to be introduced by the controller after CS is
+ de-asserted.
+
spi-rx-bus-width:
description:
Bus width to the SPI bus used for read transfers.
--
2.35.1