Other than described in commit c94d1783136e ("dt-bindings: net: phy:
Make LED active-low property common") the absence of the 'active-low'
property means not to touch the polarity settings which are inherited
from reset defaults, the bootloader or bootstrap configuration. Hence,
in order to override a LED pin being active-high in case of the default,
bootloader or bootstrap setting being active-low an additional property
'active-high' is required. Document that property and make it mutually
exclusive to the existing 'active-low' property.
Signed-off-by: Daniel Golle <daniel@xxxxxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
v2: fix commit sha truncation in commit message
Documentation/devicetree/bindings/leds/common.yaml | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml
index bf9a101e4d42..7c3cd7b7412e 100644
--- a/Documentation/devicetree/bindings/leds/common.yaml
+++ b/Documentation/devicetree/bindings/leds/common.yaml
@@ -202,6 +202,12 @@ properties:
#trigger-source-cells property in the source node.
$ref: /schemas/types.yaml#/definitions/phandle-array
+ active-high:
+ type: boolean
+ description:
+ Makes LED active high. To turn the LED ON, line needs to be
+ set to high voltage instead of low.
+
active-low:
type: boolean
description:
@@ -225,6 +231,14 @@ properties:
Maximum timeout in microseconds after which the flash LED is turned off.
Required for flash LED nodes with configurable timeout.
+allOf:
+ - if:
+ required:
+ - active-low
+ then:
+ properties:
+ active-high: false
+
additionalProperties: true
examples:
--
2.47.0
