[PATCH v2 1/3] dt-bindings: mfd: qcom-pm8xxx: allow temp-alarm subnode

[Herman van Hazendonk <github.com@herrie.org>]

The qcom,pm8xxx parent schema closes its child set via
`additionalProperties: false` and an explicit list of `patternProperties`.
PM8901 (and prospectively other parts in the family) exposes an
over-temperature alarm block as an SSBI sub-node; without a matching
pattern here, any board DT that instantiates `temp-alarm@<offset>`
under a PM8xxx parent fails dtbs_check.

Add the `temp-alarm@[0-9a-f]+$` pattern, referencing the new
qcom,pm8901-temp-alarm schema, so the temperature-alarm sub-node
validates as a recognised child of the PMIC.

Signed-off-by: Herman van Hazendonk <github.com@herrie.org>
---
 Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml b/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml
index 63e18d6a9c21..dde290569b03 100644
--- a/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml
+++ b/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml
@@ -68,6 +68,10 @@ patternProperties:
     type: object
     $ref: /schemas/rtc/qcom-pm8xxx-rtc.yaml#
 
+  "temp-alarm@[0-9a-f]+$":
+    type: object
+    $ref: /schemas/thermal/qcom,pm8901-temp-alarm.yaml#
+
   "vibrator@[0-9a-f]+$":
     type: object
     $ref: /schemas/input/qcom,pm8xxx-vib.yaml#
-- 
2.43.0