[PATCH v2 08/19] dt-bindings: watchdog: fsl-imx-wdt: Add i.MX 8M compatibles

[Krzysztof Kozlowski <krzk@xxxxxxxxxx>]

DTSes with new i.MX 8M SoCs introduce their own compatibles so add them
to fix dtbs_check warnings like:

  arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dt.yaml: watchdog@30280000:
    compatible:0: 'fsl,imx8mm-wdt' is not one of ['fsl,imx21-wdt']
    From schema: Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml

  arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dt.yaml: watchdog@30280000:
    compatible: ['fsl,imx8mm-wdt', 'fsl,imx21-wdt'] is too long

  arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dt.yaml: watchdog@30280000:
    compatible: Additional items are not allowed ('fsl,imx21-wdt' was unexpected)

Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
 .../devicetree/bindings/watchdog/fsl-imx-wdt.yaml     | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml
index d96b93b11fad..991b4e33486e 100644
--- a/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml
@@ -14,8 +14,15 @@ allOf:
 
 properties:
   compatible:
-    enum:
-      - fsl,imx21-wdt
+    oneOf:
+      - const: fsl,imx21-wdt
+      - items:
+          - enum:
+              - fsl,imx8mm-wdt
+              - fsl,imx8mn-wdt
+              - fsl,imx8mp-wdt
+              - fsl,imx8mq-wdt
+          - const: fsl,imx21-wdt
 
   reg:
     maxItems: 1
-- 
2.17.1