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-rw-r--r--dts/Bindings/i2c/i2c-rcar.txt32
1 files changed, 20 insertions, 12 deletions
diff --git a/dts/Bindings/i2c/i2c-rcar.txt b/dts/Bindings/i2c/i2c-rcar.txt
index 239632a0d7..2b8bd33dbf 100644
--- a/dts/Bindings/i2c/i2c-rcar.txt
+++ b/dts/Bindings/i2c/i2c-rcar.txt
@@ -1,17 +1,25 @@
I2C for R-Car platforms
Required properties:
-- compatible: Must be one of
- "renesas,i2c-rcar"
- "renesas,i2c-r8a7778"
- "renesas,i2c-r8a7779"
- "renesas,i2c-r8a7790"
- "renesas,i2c-r8a7791"
- "renesas,i2c-r8a7792"
- "renesas,i2c-r8a7793"
- "renesas,i2c-r8a7794"
- "renesas,i2c-r8a7795"
- "renesas,i2c-r8a7796"
+- compatible:
+ "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.
+ "renesas,i2c-r8a7791" if the device is a part of a R8A7791 SoC.
+ "renesas,i2c-r8a7792" if the device is a part of a R8A7792 SoC.
+ "renesas,i2c-r8a7793" if the device is a part of a R8A7793 SoC.
+ "renesas,i2c-r8a7794" if the device is a part of a R8A7794 SoC.
+ "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-gen3-i2c" for a generic R-Car Gen3 compatible device.
+ "renesas,i2c-rcar" (deprecated)
+
+ When compatible with the generic version, nodes must list the
+ SoC-specific version corresponding to the platform first followed
+ by the generic version.
+
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: interrupt specifier.
@@ -33,7 +41,7 @@ Examples :
i2c0: i2c@e6508000 {
#address-cells = <1>;
#size-cells = <0>;
- compatible = "renesas,i2c-r8a7791";
+ compatible = "renesas,i2c-r8a7791", "renesas,rcar-gen2-i2c";
reg = <0 0xe6508000 0 0x40>;
interrupts = <0 287 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp9_clks R8A7791_CLK_I2C0>;