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| author |   Haojian Zhuang <haojian.zhuang@gmail.com> | 2012-04-27 16:21:08 +0800 |
|---|---|---|
| committer | Haojian Zhuang <haojian.zhuang@gmail.com> | 2012-05-05 16:40:08 +0800 |
| commit | ace1297f7222ec5d6a33f41e792a21e999551924 (patch) | |
| tree | f7323c16a448dbd3b9e5b1e8ffb1b16da0c6b9b0 /Documentation/devicetree/bindings/i2c | |
| parent | ARM: dts: refresh dts file for arch mmp (diff) | |
| download | linux-dev-ace1297f7222ec5d6a33f41e792a21e999551924.tar.xz linux-dev-ace1297f7222ec5d6a33f41e792a21e999551924.zip | |
Documentation: update docs for mmp dt
Append interrupt controller and timer document for mmp. Updates
documents for gpio and i2c.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/mrvl-i2c.txt | 15 |
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 071eb3caae91..b891ee218354 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>; }; |