From 05b743db9d8cc4e51b3eb77889d24ab9aa2bf169 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Date: Tue, 30 May 2023 16:48:46 +0200
Subject: dt-bindings: pwm: restrict node name suffixes
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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@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 Documentation/devicetree/bindings/pwm/pwm.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pwm/pwm.yaml b/Documentation/devicetree/bindings/pwm/pwm.yaml
index 3c01f85029e5..abd9fa873354 100644
--- a/Documentation/devicetree/bindings/pwm/pwm.yaml
+++ b/Documentation/devicetree/bindings/pwm/pwm.yaml
@@ -13,7 +13,7 @@ select: false
 
 properties:
   $nodename:
-    pattern: "^pwm(@.*|-[0-9a-f])*$"
+    pattern: "^pwm(@.*|-([0-9]|[1-9][0-9]+))?$"
 
   "#pwm-cells":
     description:
-- 
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