linux-kernel - [PATCH v2 02/30] dt-bindings: gpio: nomadik: add optional ngpios property

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Date: Wed, 28 Feb 2024 12:28:00 +0100
From: Théo Lebrun <theo.lebrun@...tlin.com>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-mips@...r.kernel.org, Gregory CLEMENT <gregory.clement@...tlin.com>, 
 Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Tawfik Bayouk <tawfik.bayouk@...ileye.com>, 
 Théo Lebrun <theo.lebrun@...tlin.com>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 02/30] dt-bindings: gpio: nomadik: add optional ngpios
 property

This GPIO controller can support a lesser number of GPIOs than 32.
Express that in devicetree using an optional, generic property.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
---
 Documentation/devicetree/bindings/gpio/st,nomadik-gpio.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/st,nomadik-gpio.yaml b/Documentation/devicetree/bindings/gpio/st,nomadik-gpio.yaml
index 69774f36e03f..4080e94702d5 100644
--- a/Documentation/devicetree/bindings/gpio/st,nomadik-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/st,nomadik-gpio.yaml
@@ -51,6 +51,10 @@ properties:
   gpio-ranges:
     maxItems: 1
 
+  ngpios:
+    minimum: 0
+    maximum: 32
+
 required:
   - compatible
   - reg

-- 
2.44.0