summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/i2c
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/i2c')
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-fsi.txt40
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-owl.txt27
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-rcar.txt5
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt4
4 files changed, 74 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-fsi.txt b/Documentation/devicetree/bindings/i2c/i2c-fsi.txt
new file mode 100644
index 000000000000..b1be2ceb7e69
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-fsi.txt
@@ -0,0 +1,40 @@
+Device-tree bindings for FSI-attached I2C master and busses
+-----------------------------------------------------------
+
+Required properties:
+ - compatible = "ibm,i2c-fsi";
+ - reg = < address size >; : The FSI CFAM address and address
+ space size.
+ - #address-cells = <1>; : Number of address cells in child
+ nodes.
+ - #size-cells = <0>; : Number of size cells in child nodes.
+ - child nodes : Nodes to describe busses off the I2C
+ master.
+
+Child node required properties:
+ - reg = < port number > : The port number on the I2C master.
+
+Child node optional properties:
+ - child nodes : Nodes to describe devices on the I2C
+ bus.
+
+Examples:
+
+ i2c@1800 {
+ compatible = "ibm,i2c-fsi";
+ reg = < 0x1800 0x400 >;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c-bus@0 {
+ reg = <0>;
+ };
+
+ i2c-bus@1 {
+ reg = <1>;
+
+ eeprom@50 {
+ compatible = "vendor,dev-name";
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-owl.txt b/Documentation/devicetree/bindings/i2c/i2c-owl.txt
new file mode 100644
index 000000000000..b743fe444e9f
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-owl.txt
@@ -0,0 +1,27 @@
+Actions Semiconductor Owl I2C controller
+
+Required properties:
+
+- compatible : Should be "actions,s900-i2c".
+- reg : Offset and length of the register set for the device.
+- #address-cells : Should be 1.
+- #size-cells : Should be 0.
+- interrupts : A single interrupt specifier.
+- clocks : Phandle of the clock feeding the I2C controller.
+
+Optional properties:
+
+- clock-frequency : Desired I2C bus clock frequency in Hz. As only Normal and
+ Fast modes are supported, possible values are 100000 and
+ 400000.
+Examples:
+
+ i2c0: i2c@e0170000 {
+ compatible = "actions,s900-i2c";
+ reg = <0 0xe0170000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clock CLK_I2C0>;
+ clock-frequency = <100000>;
+ };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
index 7ce8fae55537..39cd21d95810 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
@@ -4,6 +4,7 @@ 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-r8a774a1" if the device is a part of a R8A774A1 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.
@@ -16,11 +17,13 @@ Required properties:
"renesas,i2c-r8a77965" if the device is a part of a R8A77965 SoC.
"renesas,i2c-r8a77970" if the device is a part of a R8A77970 SoC.
"renesas,i2c-r8a77980" if the device is a part of a R8A77980 SoC.
+ "renesas,i2c-r8a77990" if the device is a part of a R8A77990 SoC.
"renesas,i2c-r8a77995" if the device is a part of a R8A77995 SoC.
"renesas,rcar-gen1-i2c" for a generic R-Car Gen1 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,rcar-gen3-i2c" for a generic R-Car Gen3 or RZ/G2 compatible
+ device.
"renesas,i2c-rcar" (deprecated)
When compatible with the generic version, nodes must list the
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
index fc7e17802746..872673adff5a 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
@@ -6,6 +6,7 @@ Required properties:
- "renesas,iic-r8a7740" (R-Mobile A1)
- "renesas,iic-r8a7743" (RZ/G1M)
- "renesas,iic-r8a7745" (RZ/G1E)
+ - "renesas,iic-r8a774a1" (RZ/G2M)
- "renesas,iic-r8a7790" (R-Car H2)
- "renesas,iic-r8a7791" (R-Car M2-W)
- "renesas,iic-r8a7792" (R-Car V2H)
@@ -17,7 +18,8 @@ Required properties:
- "renesas,iic-sh73a0" (SH-Mobile AG5)
- "renesas,rcar-gen2-iic" (generic R-Car Gen2 or RZ/G1
compatible device)
- - "renesas,rcar-gen3-iic" (generic R-Car Gen3 compatible device)
+ - "renesas,rcar-gen3-iic" (generic R-Car Gen3 or RZ/G2
+ compatible device)
- "renesas,rmobile-iic" (generic device)
When compatible with a generic R-Car version, nodes