[PATCH 2/5] dt-bindings: mailbox: imx-mu: add i.MX93 S4 MU support

[Peng Fan (OSS)]

From: Peng Fan <peng.fan at nxp.com>

Similar to i.MX8ULP S4 MU, i.MX93 MU is dedicated for communication
between Sentinel and Cortex-A cores from hardware design, it could not be
reused for other purpose.

However i.MX93 S4 MU use seperate tx/rx interrupt, so update
interrupts and add interrupt-names property.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 .../devicetree/bindings/mailbox/fsl,mu.yaml        | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
index 713cb847cd8c..f99890ae1813 100644
--- a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
+++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
@@ -29,10 +29,11 @@ properties:
       - const: fsl,imx8ulp-mu
       - const: fsl,imx8-mu-scu
       - const: fsl,imx8-mu-seco
+      - const: fsl,imx93-mu-s4
       - const: fsl,imx8ulp-mu-s4
       - items:
-          const: fsl,imx93-mu
-          const: fsl,imx8ulp-mu
+          - const: fsl,imx93-mu
+          - const: fsl,imx8ulp-mu
       - items:
           - enum:
               - fsl,imx7s-mu
@@ -55,7 +56,14 @@ properties:
     maxItems: 1
 
   interrupts:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
+
+  interrupt-names:
+    minItems: 1
+    items:
+      - const: txirq
+      - const: rxirq
 
   "#mbox-cells":
     description: |
-- 
2.25.1