[PATCH] dt-bindings: gpio: fsl-imx-gpio: Document imx25 and imx27

[Fabio Estevam <festevam@xxxxxxxxx>]

From: Fabio Estevam <festevam@xxxxxxx>

fsl,imx25-gpio and fsl,imx27-gpio are not documented, causing schema
warnings.

fsl,imx25-gpio is compatible with fsl,imx35-gpio and fsl,imx27-gpio
is compatible with fsl,imx21-gpio.

Document them accordingly.

Signed-off-by: Fabio Estevam <festevam@xxxxxxx>
---
 Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
index d0ca2af89f1e..e716c6170643 100644
--- a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
@@ -21,6 +21,14 @@ properties:
       - items:
           - const: fsl,imx35-gpio
           - const: fsl,imx31-gpio
+      - items:
+          - enum:
+              - fsl,imx25-gpio
+          - const: fsl,imx35-gpio
+      - items:
+          - enum:
+              - fsl,imx27-gpio
+          - const: fsl,imx21-gpio
       - items:
           - enum:
               - fsl,imx50-gpio
-- 
2.34.1