linux-kernel - [PATCH] dt-bindings: iio: Document "label" property

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Date:   Tue, 21 Dec 2021 10:43:54 +0000
From:   Paul Cercueil <paul@...pouillou.net>
To:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Rob Herring <robh+dt@...nel.org>,
        Guido Günther <agx@...xcpu.org>
Cc:     linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH] dt-bindings: iio: Document "label" property

All iio devices can have a label, which will be carried on to userspace
as a sysfs attribute. This is useful when having several iio devices
that represent different instances of the same hardware, as the name
attribute would then not be enough to differentiate between them.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
 Documentation/devicetree/bindings/iio/common.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/common.yaml b/Documentation/devicetree/bindings/iio/common.yaml
index f845b41d74c4..a90ad7718ecf 100644
--- a/Documentation/devicetree/bindings/iio/common.yaml
+++ b/Documentation/devicetree/bindings/iio/common.yaml
@@ -32,6 +32,14 @@ properties:
       considered 'near' to the device (an object is near to the
       sensor).
 
+  label:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: |
+      All iio devices can have a label, which will be carried on to userspace
+      as a sysfs attribute. This is useful when having several iio devices that
+      represent different instances of the same hardware, as the name attribute
+      would then not be enough to differentiate between them.
+
 additionalProperties: true
 
 ...
-- 
2.34.1