[PATCH 1/2] dt-bindings: hwmon: lm75: Add lm75,alert-polarity-active-high property

[Markus Stockhausen <markus.stockhausen@gmx.de>]

The LM75 alert pin is asserted based on the value of alert polarity bit of
the configuration register. The device/driver default is 0 which means alert
pin is configured to be active-low. A value of 1 maps to inverted (active-high).

Add an optional boolean property "lm75,alert-polarity-active-high" to
override the alert pin polarity. When absent, the default active-low
polarity is kept.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
---
 Documentation/devicetree/bindings/hwmon/lm75.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/hwmon/lm75.yaml b/Documentation/devicetree/bindings/hwmon/lm75.yaml
index 0b9fda81e3ec..173751a726f3 100644
--- a/Documentation/devicetree/bindings/hwmon/lm75.yaml
+++ b/Documentation/devicetree/bindings/hwmon/lm75.yaml
@@ -54,6 +54,13 @@ properties:
   interrupts:
     maxItems: 1
 
+  lm75,alert-polarity-active-high:
+    description: Alert pin is asserted based on the value of alert polarity
+      bit of configuration register. Default value is normal (0 which maps to
+      active-low). The other value is inverted (1 which maps to active-high).
+      Specify this property to set the alert polarity to active-high.
+    $ref: /schemas/types.yaml#/definitions/flag
+
 required:
   - compatible
   - reg
-- 
2.54.0