diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index b98efb7bf6ee..00cdf490b062 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -1451,6 +1451,24 @@ properties:
               - fsl,imxrt1170-evk         # i.MXRT1170 EVK Board
           - const: fsl,imxrt1170
 
+      - description:
+          TQMa91xxLA and TQMa91xxCA are two series of feature compatible SOM
+          using NXP i.MX91 SOC in 11x11 mm package.
+          TQMa91xxLA is designed to be soldered on different carrier boards.
+          TQMa91xxCA is a compatible variant using board to board connectors.
+          All SOM and CPU variants use the same device tree hence only one
+          compatible is needed. Bootloader disables all features not present
+          in the assembled SOC.
+          MBa91xxCA mainboard can be used as starterkit for the SOM
+          soldered on an adapter board or for the connector variant
+          MBa91xxLA mainboard is a single board computer using the solderable
+          SOM variant
+        items:
+          - enum:
+              - tq,imx91-tqma9131-mba91xxca # TQ-Systems GmbH i.MX91 TQMa91xxCA/LA SOM on MBa91xxCA
+          - const: tq,imx91-tqma9131        # TQ-Systems GmbH i.MX91 TQMa91xxCA/LA SOM
+          - const: fsl,imx91
+
       - description:
           TQMa93xxLA and TQMa93xxCA are two series of feature compatible SOM
           using NXP i.MX93 SOC in 11x11 mm package.