[RFC PATCH 3/6] dt-bindings: axi-fan-control: add tacho properties

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Add the bindings for the tacho signal evaluation parameters which depend
on the FAN being used.

Signed-off-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
---
 .../bindings/hwmon/adi,axi-fan-control.yaml          | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml b/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml
index 6747b870f297..0481eb34d9f1 100644
--- a/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml
+++ b/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml
@@ -37,6 +37,18 @@ properties:
     $ref: /schemas/types.yaml#/definitions/uint32
     enum: [1, 2, 4]
 
+  adi,tacho-25-us:
+    description: Expected tacho signal when the PWM is at 25%.
+
+  adi,tacho-50-us:
+    description: Expected tacho signal when the PWM is at 50%.
+
+  adi,tacho-75-us:
+    description: Expected tacho signal when the PWM is at 75%.
+
+  adi,tacho-100-us:
+    description: Expected tacho signal when the PWM is at 100%.
+
 required:
   - compatible
   - reg
-- 
2.32.0




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