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dt-bindings: i3c: Document Cadence I3C master bindings

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Document Cadence I3C master DT bindings.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Boris Brezillon 2017-07-21 12:22:23 +02:00
parent 603f2bee2c
commit e29d0d9c90
1 changed files with 43 additions and 0 deletions
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Documentation/devicetree/bindings/i3c/cdns,i3c-master.txt Normal file
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Bindings for cadence I3C master block
=====================================
Required properties:
--------------------
- compatible: shall be "cdns,i3c-master"
- clocks: shall reference the pclk and sysclk
- clock-names: shall contain "pclk" and "sysclk"
- interrupts: the interrupt line connected to this I3C master
- reg: I3C master registers
Mandatory properties defined by the generic binding (see
Documentation/devicetree/bindings/i3c/i3c.txt for more details):
- #address-cells: shall be set to 1
- #size-cells: shall be set to 0
Optional properties defined by the generic binding (see
Documentation/devicetree/bindings/i3c/i3c.txt for more details):
- i2c-scl-hz
- i3c-scl-hz
I3C device connected on the bus follow the generic description (see
Documentation/devicetree/bindings/i3c/i3c.txt for more details).
Example:
i3c-master@0d040000 {
compatible = "cdns,i3c-master";
clocks = <&coreclock>, <&i3csysclock>;
clock-names = "pclk", "sysclk";
interrupts = <3 0>;
reg = <0x0d040000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
i2c-scl-hz = <100000>;
nunchuk: nunchuk@52 {
compatible = "nintendo,nunchuk";
reg = <0x52 0x80000010 0>;
};
};