diff --git a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
index 2b8bd33dbf8d..cad39aee9f73 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
@@ -2,6 +2,8 @@ I2C for R-Car platforms
 
 Required properties:
 - compatible:
+	"renesas,i2c-r8a7743" if the device is a part of a R8A7743 SoC.
+	"renesas,i2c-r8a7745" if the device is a part of a R8A7745 SoC.
 	"renesas,i2c-r8a7778" if the device is a part of a R8A7778 SoC.
 	"renesas,i2c-r8a7779" if the device is a part of a R8A7779 SoC.
 	"renesas,i2c-r8a7790" if the device is a part of a R8A7790 SoC.
@@ -12,7 +14,8 @@ Required properties:
 	"renesas,i2c-r8a7795" if the device is a part of a R8A7795 SoC.
 	"renesas,i2c-r8a7796" if the device is a part of a R8A7796 SoC.
 	"renesas,rcar-gen1-i2c" for a generic R-Car Gen1 compatible device.
-	"renesas,rcar-gen2-i2c" for a generic R-Car Gen2 compatible device.
+	"renesas,rcar-gen2-i2c" for a generic R-Car Gen2 or RZ/G1 compatible
+				device.
 	"renesas,rcar-gen3-i2c" for a generic R-Car Gen3 compatible device.
 	"renesas,i2c-rcar" (deprecated)