[PATCH v5 1/9] dt-bindings: rtc: abx80x: document ABX81X RTCs
From: Antoni Pokusinski
Date: Tue Aug 11 2026 - 15:48:16 EST
Abracon AB0815 and AB1815 are RTC modules with SPI interface.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>
Signed-off-by: Antoni Pokusinski <apokusinski01@xxxxxxxxx>
---
.../bindings/rtc/abracon,abx80x.yaml | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml b/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml
index 355b0598411a..d105570bcd5a 100644
--- a/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml
+++ b/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/rtc/abracon,abx80x.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Abracon ABX80X I2C ultra low power RTC/Alarm chip
+title: Abracon ABX80X (I2C) and ABX81X (SPI) ultra low power RTC/Alarm chips
maintainers:
- linux-rtc@xxxxxxxxxxxxxxx
@@ -21,10 +21,12 @@ properties:
- abracon,ab0803
- abracon,ab0804
- abracon,ab0805
+ - abracon,ab0815
- abracon,ab1801
- abracon,ab1803
- abracon,ab1804
- abracon,ab1805
+ - abracon,ab1815
- microcrystal,rv1805
reg:
@@ -61,6 +63,7 @@ required:
- reg
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- $ref: rtc.yaml#
- if:
properties:
@@ -73,6 +76,8 @@ allOf:
- abracon,ab1804
- abracon,ab0805
- abracon,ab1805
+ - abracon,ab0815
+ - abracon,ab1815
then:
properties:
abracon,tc-diode: false
@@ -96,3 +101,14 @@ examples:
interrupts = <44 IRQ_TYPE_EDGE_FALLING>;
};
};
+
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rtc@0 {
+ compatible = "abracon,ab1815";
+ reg = <0>;
+ };
+ };
--
2.55.0