linux-kernel - [PATCH v2 1/2] dt-bindings: iio: light: veml6075: document rset-ohms

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Message-Id: <20241024-veml6070-integration-time-v2-1-d53272ec0feb@gmail.com>
Date: Thu, 24 Oct 2024 22:44:48 +0200
From: Javier Carrasco <javier.carrasco.cruz@...il.com>
To: Jonathan Cameron <jic23@...nel.org>, 
 Lars-Peter Clausen <lars@...afoo.de>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, 
 Javier Carrasco <javier.carrasco.cruz@...il.com>
Subject: [PATCH v2 1/2] dt-bindings: iio: light: veml6075: document
 rset-ohms

The veml6070 provides a configurable integration time by means of an
external resistor (Rset in the datasheet) with values between 75 and
1200 kohms.

Document rset-ohms to select the integration time.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@...il.com>
---
 .../bindings/iio/light/vishay,veml6075.yaml        | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/light/vishay,veml6075.yaml b/Documentation/devicetree/bindings/iio/light/vishay,veml6075.yaml
index 96c1317541fa..dfd64c411658 100644
--- a/Documentation/devicetree/bindings/iio/light/vishay,veml6075.yaml
+++ b/Documentation/devicetree/bindings/iio/light/vishay,veml6075.yaml
@@ -22,6 +22,10 @@ properties:
   reg:
     maxItems: 1
 
+  rset-ohms:
+    description:
+      Resistor used to select the integration time.
+
   vdd-supply: true
 
 required:
@@ -29,6 +33,29 @@ required:
   - reg
   - vdd-supply
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          enum:
+            - vishay,veml6040
+            - vishay,veml6075
+    then:
+      properties:
+        rset-ohms: false
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - vishay,veml6070
+    then:
+      properties:
+        rset-ohms:
+          default: 270000
+          minimum: 75000
+          maximum: 1200000
+
 additionalProperties: false
 
 examples:

-- 
2.43.0