[PATCH v4] dt-bindings: gpio: sifive: add gpio-line-names

[Conor Dooley <mail@xxxxxxxxxxx>]

From: Atul Khare <atulkhare@xxxxxxxxxxxx>

Fix device tree schema validation messages like 'gpio-line-names'
does not match any of the regexes: 'pinctrl-[0-9]+' From schema: ...
sifive,gpio.yaml'.

The bindings were missing the gpio-line-names element, which was
causing the dt-schema checker to trip-up.

Acked-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Atul Khare <atulkhare@xxxxxxxxxxxx>
Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
---
Changes since v3[0]:
- Dropped patch 1 & the now unneeded cover letter
- Added Rob's Ack
- Changed the patch title to include the subsystem

0 - https://lore.kernel.org/all/20220726170725.3245278-3-mail@xxxxxxxxxxx/
---
 Documentation/devicetree/bindings/gpio/sifive,gpio.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
index 939e31c48081..fc095646adea 100644
--- a/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
@@ -46,6 +46,10 @@ properties:
     maximum: 32
     default: 16
 
+  gpio-line-names:
+    minItems: 1
+    maxItems: 32
+
   gpio-controller: true
 
 required:
-- 
2.37.1