dt-bindings: hwmon: lm75: Add ti,alert-polarity-active-high property

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 "ti,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>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20260504151020.462342-2-markus.stockhausen@gmx.de
[groeck: Shorten description line length]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/Documentation/devicetree/bindings/hwmon/lm75.yaml b/Documentation/devicetree/bindings/hwmon/lm75.yaml
index 0b9fda81e3ec50c8c35c65519d4af2f8839c5956..b48bf3fd721fe9c021af78b94a6806b047560a3c 100644 (file)
--- a/Documentation/devicetree/bindings/hwmon/lm75.yaml
+++ b/Documentation/devicetree/bindings/hwmon/lm75.yaml
@@ -54,6 +54,13 @@ properties:
   interrupts:
     maxItems: 1
 
+  ti,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