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-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt9
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
index d81b62643655..bc876b71d1e4 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
@@ -16,6 +16,7 @@ Required properties:
- "renesas,iic-r8a7795" (R-Car H3)
- "renesas,iic-r8a7796" (R-Car M3-W)
- "renesas,iic-r8a77965" (R-Car M3-N)
+ - "renesas,iic-r8a77990" (R-Car E3)
- "renesas,iic-sh73a0" (SH-Mobile AG5)
- "renesas,rcar-gen2-iic" (generic R-Car Gen2 or RZ/G1
compatible device)
@@ -28,7 +29,13 @@ Required properties:
the platform first followed by the generic R-Car
version.
- renesas,rmobile-iic must always follow.
+ When compatible with "renesas,rmobile-iic" it should
+ be the last compatibility string listed.
+
+ The r8a77990 (R-Car E3) controller is not
+ considered compatible with "renesas,rcar-gen3-iic"
+ or "renesas,rmobile-iic" due to the absence of
+ automatic transmission registers.
- reg : address start and address range size of device
- interrupts : interrupt of device