linux-kernel - [PATCH v3 2/3] dt-bindings: gpio: vf610: add optional 'ngpios'

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Message-Id: <20240117083251.53868-3-hector.palacios@digi.com>
Date: Wed, 17 Jan 2024 09:32:50 +0100
From: Hector Palacios <hector.palacios@...i.com>
To: linus.walleij@...aro.org,
	brgl@...ev.pl,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org
Cc: andy@...nel.org,
	conor+dt@...nel.org,
	shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	festevam@...il.com,
	linux-imx@....com,
	stefan@...er.ch,
	linux-gpio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	hector.palacios@...i.com
Subject: [PATCH v3 2/3] dt-bindings: gpio: vf610: add optional 'ngpios'

Some SoCs, such as i.MX93, don't have all 32 pins available
per port. Allow optional generic 'ngpios' property to be
specified from the device tree and default to 32 if the
property does not exist.

Signed-off-by: Hector Palacios <hector.palacios@...i.com>
---
 Documentation/devicetree/bindings/gpio/gpio-vf610.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml b/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
index a27f92950257..ba4ebdbc5546 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
@@ -65,6 +65,12 @@ properties:
     minItems: 1
     maxItems: 4
 
+  ngpios:
+    description: The number of GPIO pins of the port
+    minimum: 1
+    maximum: 32
+    default: 32
+
 patternProperties:
   "^.+-hog(-[0-9]+)?$":
     type: object