[PATCH v3 04/11] dt-bindings: serial: fsl-lpuart: Add imx8ulp compatible string

[Jacky Bai <ping.bai@xxxxxxx>]

The lpuart on i.MX8ULP is derived from i.MX7ULP, it uses two compatible
strings, so update the compatible string for i.MX8ULP.

Signed-off-by: Jacky Bai <ping.bai@xxxxxxx>
Reviewed-by: Dong Aisheng <aisheng.dong@xxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
---
 - v3 changes:
   no

 - v2 changes:
   refine the commit messages
---
 Documentation/devicetree/bindings/serial/fsl-lpuart.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml b/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml
index bd21060d26e0..5d3fde5d4d2b 100644
--- a/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml
+++ b/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml
@@ -22,7 +22,9 @@ properties:
           - fsl,imx7ulp-lpuart
           - fsl,imx8qm-lpuart
       - items:
-          - const: fsl,imx8qxp-lpuart
+          - enum:
+              - fsl,imx8qxp-lpuart
+              - fsl,imx8ulp-lpuart
           - const: fsl,imx7ulp-lpuart
 
   reg:
-- 
2.26.2