[PATCH V4 5/9] dt-bindings: timer: tpm-timer: Add imx8ulp compatible string

["Peng Fan (OSS)" <peng.fan@xxxxxxxxxxx>]

From: Jacky Bai <ping.bai@xxxxxxx>

The tpm timer on i.MX8ULP is derived from i.MX7ULP, it use two
compatible strings, so update the compatible string for it.

Reviewed-by: Dong Aisheng <aisheng.dong@xxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Jacky Bai <ping.bai@xxxxxxx>
Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---

 - v4 chagnes:
   no

 - v3 chagnes:
   no

 - v2 changes:
   refine the commit message

 Documentation/devicetree/bindings/timer/nxp,tpm-timer.yaml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/timer/nxp,tpm-timer.yaml b/Documentation/devicetree/bindings/timer/nxp,tpm-timer.yaml
index edd9585f6726..f69773a8e4b9 100644
--- a/Documentation/devicetree/bindings/timer/nxp,tpm-timer.yaml
+++ b/Documentation/devicetree/bindings/timer/nxp,tpm-timer.yaml
@@ -19,7 +19,11 @@ description: |
 
 properties:
   compatible:
-    const: fsl,imx7ulp-tpm
+    oneOf:
+      - const: fsl,imx7ulp-tpm
+      - items:
+          - const: fsl,imx8ulp-tpm
+          - const: fsl,imx7ulp-tpm
 
   reg:
     maxItems: 1
-- 
2.25.1