linux-kernel - [PATCH v5 2/5] dt-bindings: hwmon: Document adt7475 bypass-attenuator property

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Message-Id: <20200227084642.7057-3-chris.packham@alliedtelesis.co.nz>
Date:   Thu, 27 Feb 2020 21:46:39 +1300
From:   Chris Packham <chris.packham@...iedtelesis.co.nz>
To:     jdelvare@...e.com, linux@...ck-us.net, robh+dt@...nel.org,
        mark.rutland@....com
Cc:     logan.shaw@...iedtelesis.co.nz, linux-hwmon@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH v5 2/5] dt-bindings: hwmon: Document adt7475 bypass-attenuator property

From: Logan Shaw <logan.shaw@...iedtelesis.co.nz>

Add documentation for the bypass-attenuator-in[0-4] property.

Signed-off-by: Logan Shaw <logan.shaw@...iedtelesis.co.nz>
Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
Reviewed-by: Rob Herring <robh@...nel.org>
---

Notes:
    Changes in v5:
    - add review from Rob
    
    Changes in v4:
    - use $ref uint32 and enum
    - add 'adi' vendor prefix
    
    Changes in v3:
    - separated addition of new properties from conversion to yaml

 .../devicetree/bindings/hwmon/adt7475.yaml          | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/hwmon/adt7475.yaml b/Documentation/devicetree/bindings/hwmon/adt7475.yaml
index 2252499ea201..e40612ee075f 100644
--- a/Documentation/devicetree/bindings/hwmon/adt7475.yaml
+++ b/Documentation/devicetree/bindings/hwmon/adt7475.yaml
@@ -39,6 +39,17 @@ properties:
   reg:
     maxItems: 1
 
+patternProperties:
+  "^adi,bypass-attenuator-in[0-4]$":
+    description: |
+      Configures bypassing the individual voltage input attenuator. If
+      set to 1 the attenuator is bypassed if set to 0 the attenuator is
+      not bypassed. If the property is absent then the attenuator
+      retains it's configuration from the bios/bootloader.
+    allOf:
+     - $ref: /schemas/types.yaml#/definitions/uint32
+     - enum: [0, 1]
+
 required:
   - compatible
   - reg
@@ -52,6 +63,8 @@ examples:
       hwmon@2e {
         compatible = "adi,adt7476";
         reg = <0x2e>;
+        adi,bypass-attenuator-in0 = <1>;
+        adi,bypass-attenuator-in1 = <0>;
       };
     };
 
-- 
2.25.1