linux-kernel - [PATCH v3 3/3] dt-bindings: adis16460: Add 'spi-cs-inactive-delay-ns' property

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Message-ID: <20231027140358.328699-4-ramona.gradinariu@analog.com>
Date:   Fri, 27 Oct 2023 17:03:58 +0300
From:   Ramona Gradinariu <ramona.gradinariu@...log.com>
To:     <jic23@...nel.org>, <nuno.sa@...log.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
CC:     Ramona Gradinariu <ramona.gradinariu@...log.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v3 3/3] dt-bindings: adis16460: Add 'spi-cs-inactive-delay-ns' property

The adis16460 device requires a stall time between SPI
transactions (during which the chip select is inactive),
with a minimum value equal to 16 microseconds.
This commit adds 'spi-cs-inactive-delay-ns' property, which should
indicate the stall time between consecutive SPI transactions.
The specified minimum time may not be sufficient for all
configurations.

Signed-off-by: Ramona Gradinariu <ramona.gradinariu@...log.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
changes in v3:
 - removed description
 - updated commit message
 Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml
index 4e43c80e5119..4cacc9948726 100644
--- a/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml
+++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml
@@ -25,6 +25,10 @@ properties:

   spi-cpol: true

+  spi-cs-inactive-delay-ns:
+    minimum: 16000
+    default: 16000
+
   interrupts:
     maxItems: 1

--
2.34.1