[PATCH v3] dt-bindings: gpio: fsl-imx-gpio: Document imx25 and imx27

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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>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
Changes since v2:
- Place the 'fsl,imx21-gpio' fallback prior to 'fsl,imx31-gpio'. (Krzysztof)

Changes since v1:
- Sorted by fallback compatible. (Krzysztof)

 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..918776d16ef3 100644
--- a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
@@ -18,9 +18,17 @@ properties:
           - fsl,imx31-gpio
           - fsl,imx35-gpio
           - fsl,imx7d-gpio
+      - items:
+          - enum:
+              - fsl,imx27-gpio
+          - const: fsl,imx21-gpio
       - items:
           - const: fsl,imx35-gpio
           - const: fsl,imx31-gpio
+      - items:
+          - enum:
+              - fsl,imx25-gpio
+          - const: fsl,imx35-gpio
       - items:
           - enum:
               - fsl,imx50-gpio
-- 
2.34.1





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