linux-kernel - [PATCH v4 3/5] dt-bindings: hwmon: Document adt7475 invert-pwm property

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Date:   Fri, 21 Feb 2020 17:16:29 +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:     linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, logan.shaw@...iedtelesis.co.nz,
        Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH v4 3/5] dt-bindings: hwmon: Document adt7475 invert-pwm property

Add binding information for the invert-pwm property.

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---

Notes:
    Changes in v4:
    - use $ref uint32 and enum
    - add adi vendor prefix
    
    Cahnges in v3:
    - new

 Documentation/devicetree/bindings/hwmon/adt7475.yaml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/hwmon/adt7475.yaml b/Documentation/devicetree/bindings/hwmon/adt7475.yaml
index e40612ee075f..6a358b30586c 100644
--- a/Documentation/devicetree/bindings/hwmon/adt7475.yaml
+++ b/Documentation/devicetree/bindings/hwmon/adt7475.yaml
@@ -50,6 +50,17 @@ patternProperties:
      - $ref: /schemas/types.yaml#/definitions/uint32
      - enum: [0, 1]
 
+  "^adi,invert-pwm[1-3]$":
+    description: |
+      Configures the pwm output to use inverted logic. If set to 1
+      the pwm uses a logic low output for 100% duty cycle. If set
+      to 0 the pwm uses a logic high output for 100% duty cycle.
+      If the property is absent the pwm retains it's configuration
+      from the bios/bootloader.
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+      - enum: [0, 1]
+
 required:
   - compatible
   - reg
@@ -65,6 +76,7 @@ examples:
         reg = <0x2e>;
         adi,bypass-attenuator-in0 = <1>;
         adi,bypass-attenuator-in1 = <0>;
+        adi,invert-pwm1 = <1>;
       };
     };
 
-- 
2.25.0