linux-kernel - [PATCH v2 2/3] spi: dt-bindings: Add hold/inactive CS delay peripheral properties

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Date:   Fri, 13 Jan 2023 19:23:09 +0900
From:   Hector Martin <marcan@...can.st>
To:     Mark Brown <broonie@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Tudor Ambarus <tudor.ambarus@...rochip.com>,
        linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
        Janne Grunau <j@...nau.net>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        asahi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Rob Herring <robh@...nel.org>, Hector Martin <marcan@...can.st>
Subject: [PATCH v2 2/3] spi: dt-bindings: Add hold/inactive CS delay peripheral properties

From: Janne Grunau <j@...nau.net>

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@...nau.net>
Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Hector Martin <marcan@...can.st>
---
 .../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