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

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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>
This commit is contained in:
Markus Stockhausen 2026-05-04 17:10:19 +02:00 committed by Guenter Roeck
parent 7c13c75177
commit 01dd3f682d
1 changed files with 7 additions and 0 deletions
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7
Documentation/devicetree/bindings/hwmon/lm75.yaml
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@ -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