linux-kernel - [PATCH 2/4] dt-bindings: gpio: aspeed,sgpio: Specify gpio-line-names

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Message-Id: <20240529-dt-warnings-gpio-sgpio-interrupt-cells-v1-2-91c42976833b@codeconstruct.com.au>
Date: Wed, 29 May 2024 14:43:21 +0930
From: Andrew Jeffery <andrew@...econstruct.com.au>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Joel Stanley <joel@....id.au>, 
 Andrew Jeffery <andrew@...econstruct.com.au>
Cc: linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-aspeed@...ts.ozlabs.org, 
 linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] dt-bindings: gpio: aspeed,sgpio: Specify
 gpio-line-names

Some devicetrees specify gpio-line-names in the sgpio node despite it
not being defined by the binding. It's a reasonable thing to do, so
define the property to squash warnings such as:

```
arch/arm/boot/dts/aspeed/aspeed-bmc-vegman-rx20.dtb: sgpio@...80200: 'gpio-line-names' does not match any of the regexes: 'pinctrl-[0-9]+'
```

Signed-off-by: Andrew Jeffery <andrew@...econstruct.com.au>
---
 Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml b/Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml
index 6b15a3a3fb66..fe27b5d01e80 100644
--- a/Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml
@@ -33,6 +33,11 @@ properties:
 
   gpio-controller: true
 
+  # Each SGPIO is represented as a pair of input and output GPIOs
+  gpio-line-names:
+    minItems: 160
+    maxItems: 256
+
   '#gpio-cells':
     const: 2
 

-- 
2.39.2