[PATCH 03/22] dt-bindings: gpio: fsl-imx-gpio: Add parsing of hogs

[Krzysztof Kozlowski]

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

  arch/arm64/boot/dts/freescale/imx8mq-evk.dt.yaml: gpio at 30240000: 'wl-reg-on' does not match any of the regexes: 'pinctrl-[0-9]+'
    From schema: Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml

Signed-off-by: Krzysztof Kozlowski <krzk at kernel.org>
---
 .../devicetree/bindings/gpio/fsl-imx-gpio.yaml  | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
index 1fac69573bb9..337b99343dce 100644
--- a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
@@ -54,6 +54,23 @@ properties:
   gpio-ranges:
     maxItems: 1
 
+patternProperties:
+  "^(hog-[0-9]+|.+-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
-- 
2.17.1