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-rw-r--r--Documentation/devicetree/bindings/i2c/mrvl-i2c.txt15
1 files changed, 6 insertions, 9 deletions
diff --git a/Documentation/devicetree/bindings/i2c/mrvl-i2c.txt b/Documentation/devicetree/bindings/i2c/mrvl-i2c.txt
index 071eb3c..b891ee2 100644
--- a/Documentation/devicetree/bindings/i2c/mrvl-i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/mrvl-i2c.txt
@@ -3,34 +3,31 @@
Required properties :
- reg : Offset and length of the register set for the device
- - compatible : should be "mrvl,mmp-twsi" where CHIP is the name of a
+ - compatible : should be "mrvl,mmp-twsi" where mmp is the name of a
compatible processor, e.g. pxa168, pxa910, mmp2, mmp3.
For the pxa2xx/pxa3xx, an additional node "mrvl,pxa-i2c" is required
as shown in the example below.
Recommended properties :
- - interrupts : <a b> where a is the interrupt number and b is a
- field that represents an encoding of the sense and level
- information for the interrupt. This should be encoded based on
- the information in section 2) depending on the type of interrupt
- controller you have.
+ - interrupts : the interrupt number
- interrupt-parent : the phandle for the interrupt controller that
- services interrupts for this device.
+ services interrupts for this device. If the parent is the default
+ interrupt controller in device tree, it could be ignored.
- mrvl,i2c-polling : Disable interrupt of i2c controller. Polling
status register of i2c controller instead.
- mrvl,i2c-fast-mode : Enable fast mode of i2c controller.
Examples:
twsi1: i2c@d4011000 {
- compatible = "mrvl,mmp-twsi", "mrvl,pxa-i2c";
+ compatible = "mrvl,mmp-twsi";
reg = <0xd4011000 0x1000>;
interrupts = <7>;
mrvl,i2c-fast-mode;
};
twsi2: i2c@d4025000 {
- compatible = "mrvl,mmp-twsi", "mrvl,pxa-i2c";
+ compatible = "mrvl,mmp-twsi";
reg = <0xd4025000 0x1000>;
interrupts = <58>;
};