[PATCH v2] dt-bindings: gpio: uniphier: Add hogs parsing

[Kunihiko Hayashi]

Allow parsing GPIO controller children nodes with GPIO hogs to fix the
following warning:

  uniphier-ld11-ref.dtb: gpio at 55000000: 'xirq0-hog' does not match any of the regexes: 'pinctrl-[0-9]+'
      From schema: Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko at socionext.com>
---

Changes since v1:
- Remove outer brackets from a pattern string
- Add valid properties to patternProperties
- Add gpios to "required:"

 .../bindings/gpio/socionext,uniphier-gpio.yaml  | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml b/Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml
index bcafa494ed7a..228fa27ffdc3 100644
--- a/Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml
@@ -52,6 +52,23 @@ properties:
       <child-interrupt-base parent-interrupt-base length> triplets.
     $ref: /schemas/types.yaml#/definitions/uint32-matrix
 
+patternProperties:
+  "^.+-hog(-[0-9]+)?$":
+    type: object
+    properties:
+      gpio-hog: true
+      gpios: true
+      input: true
+      output-high: true
+      output-low: true
+      line-name: true
+
+    required:
+      - gpio-hog
+      - gpios
+
+    additionalProperties: false
+
 required:
   - compatible
   - reg
-- 
2.25.1