[PATCH 3/7] dt-bindings: rtc: restrict node name suffixes

[Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>]

Make the pattern matching node names a bit stricter to improve DTS
consistency.  The pattern is restricted to:
1. Only one unit address or one -N suffix,
2. -N suffixes to decimal numbers.

Suggested-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>

---

Cc: Tony Lindgren <tony@xxxxxxxxxxx>
Cc: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/rtc/rtc.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml
index c6fff5486fe6..efb66df82782 100644
--- a/Documentation/devicetree/bindings/rtc/rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/rtc.yaml
@@ -15,7 +15,7 @@ description: |
 
 properties:
   $nodename:
-    pattern: "^rtc(@.*|-[0-9a-f])*$"
+    pattern: "^rtc(@.*|-([0-9]|[1-9][0-9]+))?$"
 
   aux-voltage-chargeable:
     $ref: /schemas/types.yaml#/definitions/uint32
-- 
2.34.1