linux-kernel - [PATCH v2 7/8] dt-bindings: iio: imu: Add ADIS1657X family devices compatibles

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Date: Wed,  8 May 2024 16:13:09 +0300
From: Ramona Gradinariu <ramona.bolboaca13@...il.com>
To: linux-kernel@...r.kernel.org,
	jic23@...nel.org,
	linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org,
	conor+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	robh@...nel.org,
	nuno.sa@...log.com
Cc: Ramona Gradinariu <ramona.bolboaca13@...il.com>
Subject: [PATCH v2 7/8] dt-bindings: iio: imu: Add ADIS1657X family devices compatibles

Add ADIS1657X family devices compatibles and specify the according
maximum SPI baudrate.
Similarly to other ADIS1650X devices, ADIS1657X supports sync-mode
values [0,2].
Each newly added device has a different angular velocity/linear
acceleration/ delta velocity scale combination, as follows:
Accel dynamic range sensitivity:
- 262144000 LSB/g: ADIS16575
- 52428800 LSB/g: ADIS16576, ADIS16577
Gyro dynamic range sensitivity:
- 2621440 LSB/deg/sec: ADIS1575-2, ADIS1576-2, ADIS1577-2
- 655360 LSB/deg/sec: ADIS1575-3, ADIS1576-3, ADIS1577-3
Delta velocity sensitivity:
- 2^15/100 LSB/m/sec: ADIS16575
- 2^15/125 LSB/m/sec: ADIS16576
- 2^15/400 LSB/m/sec: ADIS16577
Each ADIS1657X device supports FIFO usage and a sample-rate of 4.1KHz,
meanwhile the already existing devices do not support FIFO usage and
have a maximum sample-rate of 2.1KHz.

Signed-off-by: Ramona Gradinariu <ramona.bolboaca13@...il.com>
---
changes in v2:
 - updated commit message stating the differences between the new added devices
 and existing ones supported by this driver
 .../bindings/iio/imu/adi,adis16475.yaml       | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml
index db52e7063116..9d185f7bfdcb 100644
--- a/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml
+++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml
@@ -37,6 +37,12 @@ properties:
       - adi,adis16507-1
       - adi,adis16507-2
       - adi,adis16507-3
+      - adi,adis16575-2
+      - adi,adis16575-3
+      - adi,adis16576-2
+      - adi,adis16576-3
+      - adi,adis16577-2
+      - adi,adis16577-3

   reg:
     maxItems: 1
@@ -98,6 +104,12 @@ allOf:
               - adi,adis16507-1
               - adi,adis16507-2
               - adi,adis16507-3
+              - adi,adis16575-2
+              - adi,adis16575-3
+              - adi,adis16576-2
+              - adi,adis16576-3
+              - adi,adis16577-2
+              - adi,adis16577-3

     then:
       properties:
@@ -114,6 +126,23 @@ allOf:
       dependencies:
         adi,sync-mode: [ clocks ]

+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,adis16575-2
+              - adi,adis16575-3
+              - adi,adis16576-2
+              - adi,adis16576-3
+              - adi,adis16577-2
+              - adi,adis16577-3
+
+    then:
+      properties:
+        spi-max-frequency:
+          maximum: 15000000
+
 unevaluatedProperties: false

 examples:
--
2.34.1