In almost all the schema mentioning a NAND chip child node, the name of
the subnode contains a single index number.

In practice there are currently no controller supporting more than 8 cs
so even the [a-f] numbers are not needed. But let's be safe and limit
the number of touched files by just allow a single number everywhere, so
in practice up to 16 CS at most. This value can anyway be limited in
each schema.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 .../devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml       | 2 +-
 Documentation/devicetree/bindings/mtd/intel,lgm-ebunand.yaml    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml b/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
index 65521924ee1c..465aa69f0f10 100644
--- a/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
+++ b/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
@@ -47,7 +47,7 @@ properties:
     const: rxtx
 
 patternProperties:
-  "^nand@[a-f0-9]+$":
+  "^nand@[a-f0-9]$":
     type: object
     properties:
       reg:
diff --git a/Documentation/devicetree/bindings/mtd/intel,lgm-ebunand.yaml b/Documentation/devicetree/bindings/mtd/intel,lgm-ebunand.yaml
index 7c83a328845e..d455b75a0b0b 100644
--- a/Documentation/devicetree/bindings/mtd/intel,lgm-ebunand.yaml
+++ b/Documentation/devicetree/bindings/mtd/intel,lgm-ebunand.yaml
@@ -40,7 +40,7 @@ properties:
       - const: rx
 
 patternProperties:
-  "^nand@[a-f0-9]+$":
+  "^nand@[a-f0-9]$":
     type: object
     properties:
       reg:
-- 
2.34.1