dt-bindings: hwmon: ti,ina2xx: Add ti,alert-polarity-active-high property

Add a property to the binding to configure the Alert Polarity.
Alert pin is asserted based on the value of Alert Polarity bit of
Mask/Enable register. It is by default 0 which means Alert pin is
configured to be active low open collector. Value of 1 maps to
Inverted (active high open collector).

Signed-off-by: Amna Waseem <Amna.Waseem@axis.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240603-apol-ina2xx-fix-v3-1-b9eff3158e4e@axis.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml b/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml
index df86c2c92037530ef2a1fff24668ddf66851cedb..6ae961732e6b5b231c8cde0783dbaea9e089b084 100644 (file)
--- a/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml
+++ b/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml
@@ -66,6 +66,14 @@ properties:
     description: phandle to the regulator that provides the VS supply typically
       in range from 2.7 V to 5.5 V.
 
+  ti,alert-polarity-active-high:
+    description: Alert pin is asserted based on the value of Alert polarity Bit
+      of Mask/Enable register. Default value is Normal (0 which maps to
+      active-low open collector). The other value is Inverted
+      (1 which maps to active-high open collector). Specify this property to set
+      the alert polarity to active-high.
+    $ref: /schemas/types.yaml#/definitions/flag
+
 required:
   - compatible
   - reg
@@ -88,5 +96,6 @@ examples:
             label = "vdd_3v0";
             shunt-resistor = <1000>;
             vs-supply = <&vdd_3v0>;
+            ti,alert-polarity-active-high;
         };
     };